CN208608243U - Battery pack housing - Google Patents

Battery pack housing Download PDF

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Publication number
CN208608243U
CN208608243U CN201721917439.6U CN201721917439U CN208608243U CN 208608243 U CN208608243 U CN 208608243U CN 201721917439 U CN201721917439 U CN 201721917439U CN 208608243 U CN208608243 U CN 208608243U
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CN
China
Prior art keywords
side wall
battery pack
hollow profile
bottom plate
pack housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201721917439.6U
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Chinese (zh)
Inventor
赵梁栋
张海建
陈许超
李雷
刘建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svolt Energy Technology Co Ltd
Original Assignee
Svolt Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Svolt Energy Technology Co Ltd filed Critical Svolt Energy Technology Co Ltd
Priority to CN201721917439.6U priority Critical patent/CN208608243U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model discloses a kind of battery pack housings, including lower case, the lower case includes bottom plate and the side wall around bottom plate setting, wherein it includes the double-layer structure of internal layer and outer layer that the bottom plate, which is, and closed cavity is formed between the internal layer and the outer layer.Battery pack housing provided by the utility model, after bottom is caused outer layer to rupture by external impact or backing, it still is able to guarantee by internal layer the sealing waterproof performance inside battery pack, enhances the security performance of battery pack, and the maintenance cost of battery pack can be saved.

Description

Battery pack housing
Technical field
The utility model relates to technical field of vehicle, in particular to a kind of battery pack housing.
Background technique
With the continuous deterioration of current social environment, the use of clean energy resource seems more important, stands in the breach just It is automobile industry.Carrier of the power battery pack as electric vehicle electricity, substitutes the effect of fuel tank, is vehicle storage, output energy.
The design of power battery pack needs the degree of protection that reach IP67 to guarantee the security performance of battery.Wherein, IP It indicates Ingress Protection (preventing from entering), first digit shows anti-micronic dust range, and second digit represents waterproof Degree first digit 6 is 6 grades dust-proof: dust being entirely prevented to invade;Second digit 7 is 7 grades of waterproofs.
Currently, the design of battery pack housing is generally single layer sealing, in battery pack use process, if the shell of battery pack Body bottom is destroyed, such as backing, can destroy the leakproofness of battery pack, subsequent to product using generation safety problem, and such as Fruit replaces the lower case of battery pack, then will increase the maintenance cost of battery pack.
Utility model content
In view of this, the utility model is directed to a kind of battery pack housing, to solve the bottom of battery pack in the prior art After portion destroys, the sealing performance of battery pack can be destroyed, thus the problem of causing security risk to battery pack.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model provides a kind of battery pack housing, including lower case, and the lower case includes bottom plate and surrounds described The side wall of bottom plate setting, wherein it includes the double-layer structure of internal layer and outer layer that the bottom plate, which is, and the internal layer and the outer layer it Between form closed cavity.
Further, the bottom plate is spliced to form by the first hollow profile of multiple plates, and first hollow profile Between joint seal.
Further, the end of first hollow profile is fixed on the side wall and by side wall closing described the The opening of one hollow profile end.
Further, be provided in the lower case be connected to the cavity inside each first hollow profile it is airtight Detection mouth.
Further, the airtight detection mouth is arranged on the side wall, the interior be provided with it is described airtight The channel of detection mouth connection, and open corresponding with the opening of each first hollow profile end is provided on the side wall Hole, each aperture are connected to the channel.
Further, the side wall is made of the second hollow profile, and the channel of the interior is described second Cavity inside hollow profile.
Further, pass through welding splicing between first hollow profile;
The side wall include it is interconnected multiple, by being welded to connect between each side wall, and each side wall is logical It crosses and is weldingly fixed on the bottom plate.
Further, the battery pack housing further includes upper cover, the upper cover be fixed on the side wall away from the bottom To limit the space for accommodating battery jointly with the lower case on the top surface of plate, the upper cover and side wall sealing connect It connects.
Further, the upper cover is bolted on the side wall, and is set between the upper cover and the side wall It is equipped with gasket seal.
Further, rivet nut is fixed with by staking on the top surface of the side wall, the bolt passes through the upper cover And it is fixed in the rivet nut of the side wall.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Battery pack housing provided by the utility model, the bottom plate by the way that lower case is arranged is double-layer sealing structure, in lower casing The bottom of body still is able to guarantee inside battery pack by internal layer after being caused outer layer to rupture by external impact or backing Sealing waterproof performance, lower case that no replacement is required it is possible thereby to save battery pack maintenance cost, and improves the safety of battery pack Performance.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The exemplary embodiment and its explanation of type are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:
Fig. 1 is the structural schematic diagram of battery pack housing in an embodiment of the utility model;
Fig. 2 is the cutting structural schematic diagram of battery pack housing;
Fig. 3 is enlarged drawing at B in Fig. 2;
Fig. 4 is the structural schematic diagram of lower case in battery pack housing;
Fig. 5 is the structural schematic diagram of upper cover in battery pack housing;
Fig. 6 is the structural schematic diagram of ventilation member;
Fig. 7 is the structural schematic diagram that rivet nut is provided on lower casing body sidewall.
Description of symbols:
1- lower case;11- bottom plate;12- side wall;The airtight detection mouth of 13-;2- upper cover;3- ventilation member;31- flange;32- Snorkel;4- rivet nut.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model Sign can be combined with each other.In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length Degree ", " width ", " thickness ", "upper", "lower", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " inverse time The orientation or positional relationship of the instructions such as needle ", " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, It is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three etc., unless otherwise specifically defined.
The utility model provides a kind of battery pack housing, including lower case 1, as shown in Figure 1, Figure 2 and shown in Fig. 4, lower case 1 Including bottom plate 11 and the side wall 12 being arranged around bottom plate 11, insole board 11 be include the double-layer structure of internal layer and outer layer, and institute It states and forms closed cavity between internal layer and the outer layer.
Battery pack housing provided by the utility model, the bottom plate 11 by the way that lower case 1 is arranged is double-layer sealing structure, under The bottom of shell still is able to guarantee in battery pack by internal layer after being caused outer layer to rupture by external impact or backing The sealing waterproof performance in portion, lower case that no replacement is required 1, it is possible thereby to save the maintenance cost of battery pack.
In preferred embodiments of the present invention, as shown in figure 4, the bottom plate 11 of lower case 1 is by the of multiple plates One hollow profile is spliced to form parallel, and the joint seal between the first hollow profile.Using the first hollow type of multiple plates Material is mutually spliced to form the double-layer structure with internal cavities, is simple to manufacture in technique, at low cost.
Since the both ends of the first hollow profile have opening, to form closed cavity inside profile, need to profile The opening at both ends blocks.In present embodiment, since the end of the first hollow profile is fixed on side wall 12, can borrow Help side wall 12 to close the opening of the first hollow profile end.After side wall 12 is fixed around bottom plate 11,11 inside is formed Double-layer structure with internal cavities.
Wherein it is preferred to can be by being welded to connect between first hollow profile, it can also be in the first hollow profile Between seam smear sealant, to guarantee sealing performance.
It will be appreciated by persons skilled in the art that bottom plate 11 is not limited to be spliced to form by hollow profile, can also adopt The cavity between two layers of plate body is set to form closed cavity with the edge of two layers of spaced plate body, and two layers of plate body of closing.
In addition, since battery pack is usually rectangular, side wall 12 include it is interconnected multiple, pass through between each side wall 12 It being welded to connect, and each side wall 12 is fixed by welding on the bottom plate 11, the edge of insole board 11 is withstood on side wall 12, with Side wall 12 is enabled to block the opening of the end of bottom plate 11.It, can also be in the weld seam of bottom plate 11 and side wall 12 further to seal Smear sealant in place.
In the present embodiment, whether the internal cavities in the bottom plate 11 to detect lower case 1 seal, as shown in Figure 1, The airtight detection mouth 13 being connected to inside each first hollow profile is provided in lower case 1.
Preferably, as shown in figure 4, the airtight detection mouth 13 is arranged on side wall 12, side wall 12 be internally provided with it is airtight The channel that detection mouth 13 is connected to, and aperture 121 corresponding with the open end of each first hollow profile is provided on side wall 12, scheme Shown in 2 and Fig. 3, each aperture 121 is connected to the channel.In this way, initially entering institute from the gas that airtight detection mouth 13 enters The inner passage of side wall 12 is stated, the internal cavities of each first hollow profile are then entered through aperture 121.
Further, to form airtight detection mouth 13, it is provided with ventilation member 3 on the side wall 12 of lower case 1, the ventilation The structure of component 3 is as shown in fig. 6, the ventilation member 3 includes snorkel 32 and the flange 31 being arranged on snorkel, snorkel 32 One end insertion side wall 12 on aperture when 31 backstop of flange on side wall 12, the opening in outside of snorkel 32 is institute State airtight detection mouth 13.By the way that ventilation member 3 is arranged, it can facilitate and inflate and finished in inflation laggard into airtight detection mouth 13 Row sealing.
In present embodiment, it is that the lightweight of battery pack considers, the side wall 12 of lower case 1 is set by the second hollow profile system At the channel being connected to airtight detection mouth 13 inside side wall 12 is the cavity inside second hollow profile.
When detecting to lower case 1 airtight, to airtight 13 air pressure of detection mouth, gas is initially entered in side wall 12 Then the cavity in portion has respectively entered the sky of each first hollow profile of bottom plate 11 from each aperture 121 on side wall 12 Then chamber can verify the leakproofness of lower case 1 by the quantity of gas leakage in the unit time.After detection, gas is closed Close detection mouth 13.If there is the rupture of 1 bottom of lower case the case where gas leakage, it may not be necessary to replace lower case 1, but pass through Detection mouth finds air leakage point, is continually fed into dry air, dries shell, then carries out leak source closure.
The airtight detection mode that present embodiment provides is simple, can be with low cost, quickly and efficiently complete to lower case 1 exfactory inspection, receiving inspection.And the safety in battery pack routine use, the maintainability in later period are promoted, reduce product Scrap probability.
In addition, the battery pack housing further includes upper cover 2, as shown in Figure 1, upper cover 2 be fixed on side wall 12 away from bottom plate 11 Top surface on to limit the space for accommodating battery jointly with lower case 1, the upper cover 2 and side wall 12 are tightly connected.Upper cover 2 Specific structure as shown in figure 5, in the upper cover 2 be arranged there are two rectangle recess portion, to enhance the rigidity of upper cover 2.
Preferably, upper cover 2 is bolted on the side wall 12 of lower case 1, and is provided between upper cover 2 and side wall 12 Gasket seal.
Since the common bolt connection place of being bolted seals bad problem, for this problem, this embodiment party It in formula, is fixed with rivet nut 4 (such as Fig. 7) in the top end face of side wall 12 by staking, bolt passes through upper cover 2 and is fixed on side wall In 12 rivet nut 4, so that upper cover 2 is fixed on side wall 12.It is fixed in such a way that bolt and rivet nut 4 cooperate Lid 2 will not seriously destroy the leakproofness of side wall 12.Furthermore it is also possible to which the gap between side wall 12 and rivet nut 4 is smeared Sealant, further to seal.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on Within the protection scope of type.

Claims (7)

1. a kind of battery pack housing, which is characterized in that including lower case (1), the lower case (1) includes bottom plate (11) and surrounds The side wall (12) of bottom plate (11) setting, wherein it includes the double-layer structure of internal layer and outer layer that the bottom plate (11), which is, and described Closed cavity is formed between internal layer and the outer layer;
The bottom plate (11) is spliced to form by the first hollow profile of multiple plates, and the seam between first hollow profile Sealing;
It is provided with and is connected to the cavity inside each first hollow profile to be used for the cavity on the lower case (1) The airtight detection mouth (13) inflated and can sealed after sealing;
The airtight detection mouth (13) is arranged on the side wall (12), and the side wall (12) is internally provided with and the airtight inspection The channel of mouth (13) connection is surveyed, and is provided on the side wall (12) corresponding with the opening of each first hollow profile end Aperture (121), each aperture (121) is connected to the channel.
2. battery pack housing according to claim 1, which is characterized in that the end of first hollow profile is fixed on institute It states on side wall (12) and by the opening of the side wall (12) closing first hollow profile end.
3. battery pack housing according to claim 1, which is characterized in that the side wall (12) is by the second hollow profile system At the internal channel of the side wall (12) is the cavity inside second hollow profile.
4. battery pack housing according to claim 1, which is characterized in that spelled between first hollow profile by welding It connects;
The side wall (12) include it is interconnected multiple, by being welded to connect between each side wall (12), and each side Wall (12) is fixed by welding on the bottom plate (11).
5. battery pack housing described in any one of -4 according to claim 1, which is characterized in that the battery pack housing also wraps Include upper cover (2), the upper cover (2) be fixed on the side wall (12) on the top surface of the bottom plate (11) with the lower casing Body (1) limits the space for accommodating battery jointly, and the upper cover (2) and the side wall (12) are tightly connected.
6. battery pack housing according to claim 5, which is characterized in that the upper cover (2) is bolted on described On side wall (12), and gasket seal is provided between the upper cover (2) and the side wall (12).
7. battery pack housing according to claim 6, which is characterized in that solid by staking on the top surface of the side wall (12) Surely have rivet nut (4), the bolt passes through the upper cover (2) and is fixed on the rivet nut (4) of the side wall (12) On.
CN201721917439.6U 2017-12-29 2017-12-29 Battery pack housing Active CN208608243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721917439.6U CN208608243U (en) 2017-12-29 2017-12-29 Battery pack housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721917439.6U CN208608243U (en) 2017-12-29 2017-12-29 Battery pack housing

Publications (1)

Publication Number Publication Date
CN208608243U true CN208608243U (en) 2019-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721917439.6U Active CN208608243U (en) 2017-12-29 2017-12-29 Battery pack housing

Country Status (1)

Country Link
CN (1) CN208608243U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110176566A (en) * 2019-05-30 2019-08-27 北京海纳川汽车部件股份有限公司 Battery pack and vehicle for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110176566A (en) * 2019-05-30 2019-08-27 北京海纳川汽车部件股份有限公司 Battery pack and vehicle for vehicle

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