CN208873803U

CN208873803U - A battery box and power battery

Info

Publication number: CN208873803U
Application number: CN201821962181.6U
Authority: CN
Inventors: 卢康; 于学宁; 彭月猛; 张福增
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2019-05-17
Anticipated expiration: 2028-11-27

Abstract

The utility model relates to a kind of Battery case and power battery, Battery case includes upper cover and lower box, and the two cooperatively forms the space that can accommodate battery, and lower box includes nowel phosphor bodies, reinforces beam assembly, outsourcing beam assembly and interior lining panel component；Reinforce beam assembly to be arranged in lower box body interior；The setting of outsourcing beam assembly forms cavity structure on the outside of lower box body side and between lower box main body wall, and interior lining panel component is mounted on inside the cavity structure, is used to support the lifting portion.Reinforcing beam assembly includes intermediate high crossbeam and stringer.Enhance the intensity of cabinet intermediate high beam and by way of forming cavity structure, the rigidity of lifting point is improved in such a way that interior lining panel component is installed, the power generated in vehicle driving process is transmitted to intermediate high beam by lifting point, interior lining panel component, nowel phosphor bodies and side bar.The anti-vibration and anti-extrusion ability that cabinet can be enhanced, meet requirement of the power battery in vehicle driving process.

Description

A kind of Battery case and power battery

Technical field

The utility model relates to battery technology field, especially a kind of Battery case and the power electric using the Battery case Pond.

Background technique

With the fast development of new-energy automobile technology, demand of the consumer to electric car reliability and course continuation mileage is got over Come higher.As one of electric car critical component, the rapid iteration of power battery technology, the interior reliability to battery system of industry Requirement with energy density increases accordingly.As the load bearing component of power battery, the structural strength and rigidity of Battery case are determined The strength and stiffness of battery system, the energy density of weight battery system and in groups rate.

Currently, Battery case material and technique mainly include metal plate welding, metal plate punching, Extrusion Process of Aluminum Alloy Profile, cast aluminium etc..It spells Weldering body structure intensity is low, weight is big, high labor cost；Aluminum profile and cast aluminium tank material and processing cost are high, space accounting Greatly；Because the cost of material is low, technical maturity, existing cabinet mostly uses metal plate punching technique, therefore proposes very to the design of its structure High requirement, structure design is bad, causes cabinet overall structural strength and lifting point rigidity low, bearing capacity is limited, causes electricity The anti-vibration of cell system and anti-extrusion ability are low.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of Battery case and power batteries, strengthen cabinet entirety Structural strength and lifting point rigidity, to solve the problems, such as that cabinet anti-vibration and anti-extrusion ability are low.

In order to solve the above technical problems, one aspect according to the present utility model provides a kind of Battery case, including upper cover And lower box, the two cooperatively form the space that can accommodate battery, lower box includes nowel phosphor bodies, reinforces beam assembly, is outer Packet beam assembly and interior lining panel component；Nowel phosphor bodies include bottom surface and the side for being formed in bottom surface surrounding, reinforce beam assembly setting In lower box body interior；The setting of outsourcing beam assembly is formed on the outside of lower box body side and between lower box main body wall The hoisting structure with above-mentioned cavity structure is collectively formed by outsourcing beam assembly and nowel body side surface, in the lifting in cavity structure Multiple lifting portions are set in structure；Interior lining panel component is mounted on inside the cavity structure, is used to support the lifting portion.

Further, the reinforcement beam assembly includes whole circle side bar, crossbeam and stringer, whole circle side bar and nowel phosphor bodies Surrounding connection simultaneously forms cavity structure in junction, and crossbeam both ends are connect with whole circle side bar, and one end of stringer connects whole circle side Beam, the other end connect adjacent beams.

Further, the crossbeam is intermediate high crossbeam；The stringer includes intermediate high stringer and commonly indulges Beam.

Further, flange face flange, outsourcing beam assembly upper end and the method are equipped at the top of the lower box body side The connection of blue face flange front end, outsourcing beam assembly lower end is connect with lower box body floor.

Further, the outsourcing beam assembly includes left Bao Liang, right Bao Liang and rear Bao Liang；Have between left Bao Liang and rear Bao Liang Left back packet beam connection, packet beam connects behind the right side between right Bao Liang and rear Bao Liang；The front end of left Bao Liang and right Bao Liang set interior turn of bilge respectively； Lifting portion after being arranged on Bao Liang afterwards is set on left Bao Liang, right Bao Liang and the corresponding position of the flange face flange of lower box body side Set side lifting portion.

Further, the interior lining panel component includes interior lining panel, installs and is equipped with corresponding to side lifting position on interior lining panel Sleeve, interior lining panel one end are connect with lower box body side, are connect on the inside of the other end and lower box side top flange face flange, Sleeve is fixed in the lifting portion of side.

Further, lifting portion support plate after the interior lining panel component includes, after rear lifting portion support plate is connected to Lifting subordinate portion is simultaneously connect with lower box body side and rear packet beam.

Further, flange face is arranged in upper cover edge, which has upward flange, and flange bending part is equipped with Multiple leakage holes.

Another aspect according to the present utility model provides a kind of power battery, uses above-described Battery case.

Compared with prior art, power battery cabinet provided herein includes upper cover and lower box.Upper cover flange face With flange, increase the structural strength of flange face, no longer need to setting sealing clamping ring to ensure the sealing of cabinet, if flange towards Upper overturning can open up leakage hole at flange fillet, avoid ponding.Lower box includes nowel phosphor bodies, reinforces beam assembly, outsourcing Beam assembly and interior lining panel component, because its transverse and longitudinal beam has intermediate high structure, nowel phosphor bodies and outsourcing beam assembly are formd Closed cavity has interior lining panel to support lifting point in cavity, it is intermediate play high beam and form cavity structure by way of The intensity for enhancing cabinet, the rigidity of lifting point is improved by way of installing interior lining panel component, will be generated in vehicle driving process Power be transmitted to by lifting point, interior lining panel component, nowel phosphor bodies and side bar and intermediate play high beam.Therefore, the application provides Power battery cabinet structural strength with higher and lifting point rigidity, can enhance cabinet anti-vibration and anti-extrusion energy Power meets requirement of the power battery in vehicle driving process.

Detailed description of the invention

Attached drawing herein is used to provide the further explanation to the utility model, constitutes part of this application, this is practical Novel illustrative embodiments and their description are used to explain the utility model, not constitute improper limits to the present invention.

Fig. 1 is power battery cabinet overall structure diagram provided by the utility model；

Fig. 2 is superstructure schematic diagram provided by the utility model；

Fig. 3 is built in beam component structure diagram provided by the utility model；

Fig. 4 is the structural schematic diagram that jowar is played in three kinds of centres provided by the utility model；

Fig. 5 is outsourcing beam component structure schematic diagram provided by the utility model；

Fig. 6 is interior lining panel component structure diagram provided by the utility model；

Fig. 7 is lifting point sectional view provided by the utility model.

Fig. 8 is crossbeam provided by the utility model and side bar junction structural schematic diagram.

In figure, 100- upper cover；200- lower box；210- nowel phosphor bodies；220- reinforces beam assembly；230- outsourcing beam group Part；240- interior lining panel component；250- sleeve；221a- side bar；221b- side bar；221c- side bar；221d- side bar；221e- side bar； 221f- side bar；221g- side bar；221h- side bar；222a- stringer；222b- stringer；222c- stringer；223a- crossbeam；223b- is horizontal Beam；223c- crossbeam；The right Bao Liang of 231-；The left Bao Liang of 232-；The left back Bao Liang of 233-；Lifting portion after 234-；Bao Liang after 235-；236- Bao Liang behind the right side.

241,242,244 interior lining panel for respectively indicating different location；241a, 242a, 244a respectively indicate different interior lining panels On support frame；241b, 242b, 244b respectively indicate the support plate on different interior lining panels.

Specific embodiment

In order to make those skilled in the art better understand the utility model, below in conjunction with reference attached drawing and in conjunction with the embodiments Further clear, complete explanation is made to the utility model.It should be noted that in the absence of conflict, in the application Feature in embodiment and embodiment can be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two More than a.

With reference to Fig. 1, a kind of typical embodiment of the utility model provides a kind of Battery case, including upper cover 100 is under Cabinet 200, the two cooperatively form the space that can accommodate battery.

With reference to Fig. 2, flange face is arranged in 100 edge of upper cover, which has upward flange, and flange bending part is set There are multiple leakage holes.Flange face has flange, increases the structural strength of flange face, no longer needs to setting sealing clamping ring to ensure case The sealing of body.Upper cover 100 has symmetric punching muscle.Flange usually has fillet, and leakage hole is arranged at flange fillet.Leakage hole For flange face ponding to be discharged, the risk got rusty is reduced.

With reference to Fig. 1, lower box 200 includes nowel phosphor bodies 210, reinforces beam assembly 220, outsourcing beam assembly 230 and liner Board group part 240；Nowel phosphor bodies 210 include bottom surface and the side for being formed in bottom surface surrounding, reinforce beam assembly 220 and are arranged in nowel Inside phosphor bodies 210；Outsourcing beam assembly 230 be arranged on the outside of 210 side of nowel phosphor bodies and with 210 side wall of nowel phosphor bodies it Between form cavity structure, hanging with above-mentioned cavity structure is collectively formed by outsourcing beam assembly 230 and 210 side of nowel phosphor bodies Multiple lifting portions are arranged in assembling structure on the hoisting structure；Interior lining panel component 240 is mounted on inside the cavity structure, is used for The lifting portion is supported, so as to improve the rigidity of lifting point and enhance the structural strength of cabinet.

With reference to Fig. 3, in a kind of preferred embodiment, the reinforcement beam assembly includes whole circle side bar, crossbeam and stringer, Whole circle side bar connect with nowel phosphor bodies surrounding and forms cavity structure in junction, and crossbeam both ends are connect with whole circle side bar, One end of stringer connects whole circle side bar, the other end connects adjacent beams.Preferably, the crossbeam is intermediate high crossbeam；Institute Stating stringer includes intermediate high stringer and common stringer.High crossbeam is played without interrupting in centre, is directly connected to the side bar at both ends, in Between play high stringer and connect side bar and crossbeam with common stringer.

With reference to Fig. 3, whole circle side bar includes side bar (221a, 221b, 221c, 221d, 221e, 221f, 221g, 221h), by Closed whole circle side bar is connected into roof side rail head and the tail.It is equipped with stringer (222a, 222b and 222c) inside whole circle side bar, crossbeam (223a, 223b and 223c).Crossbeam (223a, 223b and 223c) is intermediate high crossbeam, and stringer 222a is common stringer, Stringer (222b and 222c) is intermediate high stringer.Fig. 4 show crossbeam used in the embodiment (223a, 223b and 223c) schematic cross-section, transverse and longitudinal beam and whole circle side bar are connected with each other, and junction structure is as shown in Figure 8.

The power generated in vehicle driving process is passed by lifting point, interior lining panel component 230, nowel phosphor bodies 210 and side bar It is delivered to intermediate high crossbeam and stringer.Play the structural strength of high transverse and longitudinal beam enhancing cabinet, the moment of flexure that cabinet can be born in centre It significantly improves, the stress of cabinet and mould group in the case where vibrating operating condition is obviously reduced.

With reference to Fig. 7,210 side top of nowel phosphor bodies is equipped with flange face flange, 230 upper end of outsourcing beam assembly and institute The connection of flange face flange front end is stated, 230 lower end of outsourcing beam assembly is connect with 210 bottom surface of nowel phosphor bodies, 230 He of outsourcing beam assembly 210 side of nowel phosphor bodies forms the hoisting structure with cavity structure.

With reference to Fig. 5, a kind of with respect in specific embodiment, the outsourcing beam assembly includes left packet beam 232, right Bao Liang 231 and rear packet beam 235；There is left back packet beam 233 to connect between left packet beam 232 and rear packet beam 235, right packet beam 231 and rear packet beam 235 Between behind the right side packet beam 236 connect；The front end of left packet beam 232 and right packet beam 231 sets interior turn of bilge respectively；After being arranged on packet beam 236 afterwards Lifting portion 234 is arranged on left packet beam 232, right packet beam 231 and the corresponding position of the flange face flange of 210 side of nowel phosphor bodies Side lifting portion.

With reference to Fig. 6, the interior lining panel component includes interior lining panel, installs on interior lining panel corresponding to side lifting position and is equipped with set Cylinder 250, interior lining panel one end is connect with 210 side of nowel phosphor bodies, the other end and lower box body side top flange face flange Inside connection, sleeve 250 are fixed in the lifting portion of side.Interior lining panel includes interior lining panel (241,242 and 244), interior lining panel (241, 242 and 244) include support plate, correspond to above-mentioned interior lining panel, the support plate in Fig. 6 is the edge (241b, 242b and 244b) respectively Support plate width direction extends to form one or more protruding portions, protruding portion upper surface fixing support rack (241a, 242a and 244a), the sleeve 250 is installed in protruding portion front end.With reference to Fig. 6, the interior lining panel component include after lifting portion support plate 243, lifting portion after being used to support, rear lifting portion support plate 243 be connected to after lift subordinate portion and with 210 body side surface of lower box master It is connected with rear packet beam 235.Interior lining panel component supports each lifting point on hoisting structure in the above manner.

Fig. 7 show a kind of lifting point sectional view provided by the example, side bar 221d and crossbeam 223b, sleeve 250, interior Liner plate 244, right packet beam 231 are connected with each other, and form multiple three-legged structures.The vibration generated in driving process is passed through sleeve by vehicle 250 are transmitted to interior lining panel 244 and right packet beam 231, and then are transmitted to side bar 221d and crossbeam 223b, because crossbeam 223b has centre High structure is played, bears the vibratory impulse generated in vehicle driving process by its big moment of flexure and overall structure.

The typical embodiment of another kind provided by the utility model, provides a kind of power battery, more than when assembling uses The Battery case.

The range of the requires of the utility model protection is not limited to the above specific embodiment, for those skilled in the art Speech, the utility model can be all made within the design and principle of the utility model any to repair there are many deformation and change Change, improve and equivalent replacement should be all included within the scope of protection of this utility model.

Claims

1. A battery box body, comprising an upper cover and a lower box body, the two cooperate to form a space that can accommodate a battery, it is characterized in that: the lower box body comprises a lower box body, a reinforcing beam assembly, an outer beam assembly and an inner lining plate assembly; the main body of the lower box body includes a bottom surface and side surfaces formed around the bottom surface, and the reinforcing beam assembly is arranged inside the main body of the lower box body; the outer beam assembly is arranged on the outside of the side surface of the main body of the lower box body and forms a cavity with the side wall of the main body of the lower box body A hoisting structure with the above-mentioned cavity structure is jointly formed by the outer beam assembly and the side surface of the lower box, and a plurality of hoisting parts are arranged on the hoisting structure; the inner lining board assembly is installed inside the cavity structure to support the the hoisting part.

2 . The battery box according to claim 1 , wherein the reinforcing beam assembly comprises a whole circle of side beams, transverse beams and longitudinal beams, and the whole circle of side beams is connected to the periphery of the lower box body and formed at the joint. 3 . In the cavity structure, both ends of the beam are connected with the whole circle of side beams, one end of the longitudinal beam is connected with the whole circle of side beams, and the other end is connected with the adjacent beams.

3 . The battery box according to claim 2 , wherein the cross beam is a cross beam raised in the middle; and the longitudinal beam comprises a longitudinal beam raised in the middle and a common longitudinal beam. 4 .

4 . The battery box according to claim 1 , wherein the top of the side of the lower box body is provided with a flange surface flanging, the upper end of the outer beam assembly is connected to the front end of the flange surface flanging, and the outer beam is The lower end of the component is connected with the bottom surface of the main body of the lower box.

5. The battery box according to claim 1, characterized in that: the outer cladding beam assembly comprises a left cladding beam, a right cladding beam and a rear cladding beam; a left rear cladding beam is connected between the left cladding beam and the rear cladding beam , the right rear cladding beam is connected between the right cladding beam and the rear cladding beam; the front ends of the left cladding beam and the right cladding beam are respectively provided with inward bending parts; A side hoisting part is arranged on the corresponding part of the flange surface flanging on the side of the body main body.

6 . The battery box according to claim 5 , wherein the inner lining plate assembly comprises an inner lining plate, a sleeve is provided on the inner lining plate corresponding to the position of the side hoisting part, and one end of the inner lining plate is connected to the lower part. 7 . The side of the main body of the box is connected, and the other end is connected to the inner side of the flange surface on the top of the side of the main body of the lower box, and the sleeve is fixed in the side hoisting part.

7 . The battery box according to claim 5 or 6 , wherein the inner lining board assembly comprises a rear hoisting part support plate, and the rear hoisting part supporting plate is connected to the lower part of the rear hoisting part and is connected with the lower box body. 8 . Side and rear clad beam connections.

8 . The battery box according to claim 1 , wherein a flange surface is provided on the peripheral edge of the upper cover, the flange surface has an upward flanging, and a plurality of water leakage holes are formed in the bending part of the flanging. 9 .

9. A power battery, characterized in that: the battery case described in any one of claims 1-8 is adopted.