CN219226489U - Novel power battery structure of MTB module integrated frame - Google Patents

Abstract

The utility model discloses a novel power battery structure of an MTB module integrated frame, which belongs to the technical field of power batteries and comprises a soft package battery, wherein an insulating cover body for surrounding the soft package battery is arranged outside the soft package battery, a liquid cooling plate is integrated on a bottom plate of the cover body, the bottom of the soft package battery is contacted with the bottom plate, sealing structures are arranged at the connection parts of a top plate of the cover body and other side plates and at the connection parts of the bottom plate of the cover body and other side plates, an explosion-proof valve for pressure relief, a high-voltage positive electrode and a low-voltage communication interface connected with a power supply and a mounting structure for mounting the power battery on a vehicle body are respectively arranged on side plates of the cover body, and the space utilization rate of the power battery is improved by arranging the cover body as a closed structure and integrating the liquid cooling plate, the explosion-proof valve, the high-voltage positive electrode and the low-voltage communication interface and the mounting structure on the cover body; the bottom of the soft package battery is contacted with the liquid cooling plate, so that the heat exchange efficiency of the power battery is improved.

Description

Novel power battery structure of MTB module integrated frame

Technical Field

The utility model relates to the technical field of power batteries, in particular to a novel power battery structure of an MTB module integrated frame.

Background

The power battery system is a core part of the electric automobile, and because of the space limitation of the electric automobile, the space occupied by the battery system is limited, in the prior art, for example, the utility model patent with the application number of 201711485442.X and the utility model patent with the application number of 201810472595.9 are both provided with an outer box body, a liquid cooling or air cooling component for cooling the battery module is arranged on the outer box body, a protective cover is arranged outside the soft package battery, and the battery module with the protective cover is integrally arranged in the outer box body, so that the power battery is assembled.

In summary, a novel power battery structure is lacking in the prior art, so that the occupied space of other parts except the battery module is reduced, and the effective space utilization rate of the battery module is increased.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art and provide a novel power battery structure of an MTB module integrated frame, wherein a cover body is arranged to be of a closed structure, and a liquid cooling plate, an explosion-proof valve, a high-voltage anode, a low-voltage communication interface and an installation structure are integrated on the cover body, so that the space utilization rate of the power battery consisting of the cover body and a soft package battery positioned in the cover body is improved; the bottom of the soft package battery is contacted with the bottom plate integrated with the liquid cooling plate, so that the heat exchange efficiency of the power battery is improved, and the heat management performance of the system is improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel power battery structure of an MTB module integrated frame, which comprises a soft package battery, wherein an insulating cover body for surrounding the soft package battery is arranged outside the soft package battery, a liquid cooling plate is integrated on a bottom plate of the insulating cover body, the bottom of the soft package battery is contacted with the bottom plate, sealing structures are arranged at the connection parts of a top plate of the insulating cover body and other side plates and at the connection parts of the bottom plate of the insulating cover body and other side plates, and an explosion-proof valve for pressure relief, a high-voltage positive electrode and a low-voltage communication interface connected with a power supply and a mounting structure for mounting the power battery on a vehicle body are respectively arranged on side plates of the insulating cover body;

preferably, the water inlet and the water outlet of the liquid cooling plate are respectively arranged outside the insulating cover body, a plurality of through liquid flow channels are arranged on the liquid cooling plate, and the water inlet and the water outlet are respectively communicated with two ends of the liquid flow channels;

preferably, the insulating cover body comprises a top plate, a bottom plate, a front side wall, a rear side wall, a left side wall and a right side wall, wherein the top plate is detachably connected with the front side wall, the rear side wall, the left side wall and the right side wall respectively, sealing gaskets capable of realizing IP67 waterproof are arranged at the joints of the top plate and the front side wall, the rear side wall, the left side wall and the right side wall, the front side wall, the rear side wall, the left side wall and the right side wall are respectively and detachably connected with the bottom plate, and the joints of the bottom plate and the front side wall, the rear side wall, the left side wall and the right side wall are in watertight tight connection;

preferably, the top plate is respectively connected with the front side wall, the rear side wall, the left side wall and the right side wall in a bolt way, and the front side wall, the rear side wall, the left side wall and the right side wall are welded with the bottom plate in a laser way;

preferably, the soft package battery is formed by stacking a plurality of battery cells in series and in parallel, heat conduction structural adhesive is coated between two adjacent battery cells, and the battery cell at the bottommost layer is contacted with the bottom plate;

preferably, the surfaces of the top plate, the bottom plate, the front side wall, the rear side wall, the left side wall and the right side wall are all coated with an insulating material;

preferably, the left side wall and the right side wall are respectively provided with an explosion-proof valve with waterproof and pressure relief functions, and the front side wall and the rear side wall are respectively provided with the high-voltage anode, the low-voltage communication interface and a plurality of mounting structures;

preferably, the mounting structure comprises an upper plate, a lower plate and an inclined plate which are respectively connected with the front side wall or the rear side wall, and a mounting hole for connecting with a vehicle body sequentially penetrates through the upper plate, the lower plate and the inclined plate;

preferably, a riser for increasing strength is provided between the upper plate and the lower plate;

preferably, the front side wall comprises a first side plate and a second side plate, a folded plate for increasing strength is arranged between the first side plate and the second side plate, and the structure of the rear side wall is the same as that of the front side wall.

Compared with the prior art, the utility model has the following technical effects:

1. according to the utility model, the cover body is arranged to be of a closed structure, and the liquid cooling plate, the explosion-proof valve, the high-voltage anode, the low-voltage communication interface and the mounting structure are integrated on the cover body, so that the space utilization rate of the power battery consisting of the cover body and the soft-package battery positioned in the cover body is improved; the bottom of the soft package battery is contacted with the bottom plate integrated with the liquid cooling plate, so that the heat exchange efficiency of the power battery is improved, and the heat management performance of the system is improved;

2. according to the utility model, the water inlet and the water outlet are arranged outside the cover body, and the cooling liquid directly enters the liquid flow channel inside the liquid cooling plate after passing through the water inlet, so that the leakage of the cooling liquid inside the liquid cooling plate can be effectively avoided under the condition that the liquid flow channel is not damaged, and the later maintenance is facilitated;

3. the power battery disclosed by the utility model has smaller size and volume, can be used as a standard battery module, can meet the electric quantity requirements of different clients by increasing or reducing the number of the battery modules, is convenient to flexibly adjust, and is more flexible in design.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric schematic view of a power cell structure;

FIG. 2 is a schematic top view of a power cell structure;

FIG. 3 is an exploded view of a power cell structure;

FIG. 4 is an isometric view of another orientation of the power cell structure;

FIG. 5 is a schematic left-hand structural view of the base plate;

FIG. 6 is a schematic axial side view of the front/rear side walls;

fig. 7 is a schematic left-hand structural view of the front/rear side walls.

1, a soft package battery; 2. an insulating cover; 3. a bottom plate; 4. a top plate; 5. an explosion-proof valve; 6. a high voltage positive electrode; 7. a low-voltage communication interface; 8. a mounting structure; 9. a front sidewall; 10. a rear sidewall; 11. a left side wall; 12. a right side wall; 13. a sealing gasket; 14. a water inlet; 15. a water outlet; 16. a flow channel; 17. an upper plate; 18. a lower plate; 19. a sloping plate; 20. a mounting hole; 21. a riser; 22. a first side plate; 23. a second side plate; 24. a folded plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1 to 7, the utility model provides a novel power battery structure of an MTB module integrated frame, which comprises a soft package battery 1, wherein an insulation cover body 2 for surrounding the soft package battery 1 is arranged outside the soft package battery 1, a liquid cooling plate is integrated on a bottom plate 3 of the insulation cover body 2, the bottom of the soft package battery 1 is contacted with the bottom plate 3, a sealing structure is arranged at a connection part of a top plate 4 of the insulation cover body 2 and the rest side plate and a connection part of the bottom plate 3 of the insulation cover body 2 and the rest side plate, an explosion-proof valve 5 for pressure relief, a high-voltage positive electrode 6 connected with a power supply, a low-voltage communication interface 7 and a mounting structure 8 for mounting the power battery on a vehicle body are respectively arranged on the side plate of the insulation cover body 2.

The insulating cover body 2 comprises a top plate 4, a bottom plate 3, a front side wall 9, a rear side wall 10, a left side wall 11 and a right side wall 12, the top plate 4 is detachably connected with the front side wall 9, the rear side wall 10, the left side wall 11 and the right side wall 12 respectively, sealing gaskets 13 capable of realizing IP67 waterproof are arranged at the joints of the top plate 4 and the front side wall 9, the rear side wall 10, the left side wall 11 and the right side wall 12, the front side wall 9, the rear side wall 10, the left side wall 11 and the right side wall 12 are respectively and non-detachably connected with the bottom plate 3, and the joints of the bottom plate 3 and the front side wall 9, the rear side wall 10, the left side wall 11 and the right side wall 12 are tightly connected in a watertight manner; the roof 4 is equipped with the bolt mounting hole respectively with preceding lateral wall 9, back lateral wall 10, left side wall 11 and right side wall 12 connected position, and preceding lateral wall 9, back lateral wall 10, left side wall 11 and right side wall 12 are also equipped with the bolt mounting hole with roof 4 connected position, and roof 4 passes through bolted connection with preceding lateral wall 9, back lateral wall 10, left side wall 11 and right side wall 12, can change the soft packet battery 1 that breaks down comparatively conveniently, and the bottom plate 3 adopts laser welding respectively with preceding lateral wall 9, back lateral wall 10, left side wall 11 and right side wall 12's junction portion, ensures that the bottom plate 3 can not take place to leak with preceding lateral wall 9, back lateral wall 10, left side wall 11 and right side wall 12's junction portion.

The water inlet 14 and the water outlet 15 of the liquid cooling plate are respectively arranged outside the insulating cover body 2, a plurality of through liquid flow channels 16 are arranged inside the bottom plate 3, the water inlet 14 and the water outlet 15 are respectively communicated with two ends of the liquid flow channels 16, the soft package battery 1 is formed by stacking a plurality of battery monomers in series and in parallel, heat conducting structural adhesive is coated between two adjacent battery monomers, the battery monomer at the bottommost layer is contacted with the bottom plate 3, during operation, heat generated by the soft package battery 1 is transferred to the bottom plate 3, cooling liquid enters from the water inlet 14 and flows inside the bottom plate 3 along the liquid flow channels 16, the temperature of the bottom plate 3 is reduced in a cold-hot exchange mode, so that the soft package battery 1 inside the insulating cover body 2 cannot accumulate a large amount of heat, the heat exchange efficiency of the battery pack is improved, the heat pipe rationality of the system is improved, in addition, the water inlet 14 and the water outlet 15 are respectively positioned outside the insulating cover body 2, the risk of leakage of cooling liquid is effectively reduced, and later maintenance is facilitated.

The surfaces of the top plate 4, the bottom plate 3, the front side wall 9, the rear side wall 10, the left side wall 11 and the right side wall 12 are all coated with insulating materials, so that the insulating cover body 2 is integrally insulated, the left side wall 11 and the right side wall 12 are respectively provided with an explosion-proof valve 5 with waterproof and pressure relief functions, when the gas pressure in the insulating cover body 2 reaches an explosion-proof value, the explosion-proof valve 5 is opened to discharge redundant gas in the insulating cover body 2, so that the gas pressure in the insulating cover body 2 is reduced, when the gas pressure in the insulating cover body 2 is restored to a safe state, the explosion-proof valve 5 is closed, redundant gas in the insulating cover body 2 can be timely and rapidly discharged through the arrangement of the explosion-proof valves 5, the smoothness of the insulating cover body 2 is improved, the situation that excessive pressure in the insulating cover body 2 is accumulated is prevented, and explosion occurs is avoided, the high-voltage anode 6, the low-voltage communication interface 7 and a plurality of mounting structures 8 are respectively arranged on the front side wall 9 and the rear side wall 10, the high-voltage anode 6 and the low-voltage communication interface 7 are respectively arranged on the front side wall 9 and the rear side wall 10, the space utilization rate is further improved, the mounting structures 8 comprise an upper plate 17, a lower plate 18 and an inclined plate 19 which are respectively connected with the front side wall 9 or the rear side wall 10, mounting holes 20 for connecting with a vehicle body sequentially penetrate through the upper plate 17, the lower plate 18 and the inclined plate 19, a vertical plate 21 for increasing the strength of the mounting structures 8 is arranged between the upper plate 17 and the lower plate 18, three mounting structures 8 are uniformly arranged in the middle of the front side wall 9, three mounting structures 8 are uniformly arranged in the middle of the rear side wall 10, and the structural stability of the power battery mounted on the vehicle body is improved through a plurality of symmetrically arranged mounting structures 8, and the structural strength of the product is ensured; the front side wall 9 comprises a first side plate 22 and a second side plate 23, a folded plate 24 for increasing strength is arranged between the first side plate 22 and the second side plate 23, the structure of the rear side wall 10 is identical to that of the front side wall 9, the front side wall 9 and the rear side wall 10 are both of a double-layer structure, and the folded plate 24 is arranged between the double-layer structure, so that the impact resistance of the front side wall 9 and the rear side wall 10 is improved.

It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (9)

1. Novel power battery structure of integrated frame of MTB module, its characterized in that: the battery pack comprises a soft package battery, wherein an insulating cover body for surrounding the soft package battery is arranged outside the soft package battery, a liquid cooling plate is integrated on a bottom plate of the insulating cover body, the bottom of the soft package battery is contacted with the bottom plate, sealing structures are arranged at the connection parts of a top plate of the insulating cover body and other side plates and at the connection parts of the bottom plate of the insulating cover body and other side plates, and an explosion-proof valve for pressure relief, a high-voltage positive electrode connected with a power supply, a low-voltage communication interface and a mounting structure for mounting a power battery on a vehicle body are respectively arranged on the side plates of the insulating cover body;

the soft package battery is formed by stacking a plurality of battery cells in series and in parallel, heat conduction structural adhesive is coated between two adjacent battery cells, and the battery cell at the bottommost layer is contacted with the bottom plate.

2. The power cell structure of claim 1, wherein: the water inlet and the water outlet of the liquid cooling plate are respectively arranged outside the insulating cover body, a plurality of through liquid flow channels are arranged on the liquid cooling plate, and the water inlet and the water outlet are respectively communicated with two ends of the liquid flow channels.

3. The power cell structure according to claim 2, wherein: the insulating lid includes roof, bottom plate, preceding lateral wall, back lateral wall, left side wall and right side wall, the roof respectively with preceding lateral wall back lateral wall left side wall with right side wall can dismantle the connection, the roof with preceding lateral wall back lateral wall left side wall with the junction of right side wall all is equipped with can realize IP67 waterproof sealing washer, preceding lateral wall back lateral wall left side wall with right side wall respectively with the bottom plate can not dismantle the connection, the bottom plate with preceding lateral wall back lateral wall left side wall with the junction of right side wall is waterproof zonulae occludens.

4. A power cell structure according to claim 3, wherein: the top plate is respectively in bolt connection with the front side wall, the rear side wall, the left side wall and the right side wall, and the front side wall, the rear side wall, the left side wall and the right side wall are welded with the bottom plate by laser.

5. The power cell structure of claim 4, wherein: the surfaces of the top plate, the bottom plate, the front side wall, the rear side wall, the left side wall and the right side wall are all coated with insulating materials.

6. The power cell structure of claim 5, wherein: the anti-explosion valve with waterproof and pressure relief functions is arranged on the left side wall and the right side wall respectively, and the high-voltage anode, the low-voltage communication interface and the mounting structures are arranged on the front side wall and the rear side wall respectively.

7. The power cell structure of claim 6, wherein: the mounting structure comprises an upper plate, a lower plate and an inclined plate which are respectively connected with the front side wall or the rear side wall, and a mounting hole used for being connected with a vehicle body sequentially penetrates through the upper plate, the lower plate and the inclined plate.

8. The power cell structure of claim 7, wherein: a vertical plate for increasing strength is arranged between the upper plate and the lower plate.

9. A power cell structure according to claim 3, wherein: the front side wall comprises a first side plate and a second side plate, a folded plate for increasing strength is arranged between the first side plate and the second side plate, and the structure of the rear side wall is the same as that of the front side wall.

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