CN204243089U - For the Hermetical connecting structure of battery of electric vehicle housing - Google Patents
For the Hermetical connecting structure of battery of electric vehicle housing Download PDFInfo
- Publication number
- CN204243089U CN204243089U CN201420776896.8U CN201420776896U CN204243089U CN 204243089 U CN204243089 U CN 204243089U CN 201420776896 U CN201420776896 U CN 201420776896U CN 204243089 U CN204243089 U CN 204243089U
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- Prior art keywords
- battery
- bolt
- connection bracket
- seal
- modules connection
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Gasket Seals (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a kind of Hermetical connecting structure for battery of electric vehicle housing, it comprises metallic framework, battery modules connection bracket in battery container and battery container, the lower cover of battery container is between metallic framework and battery modules connection bracket, described metallic framework, lower cover is connected by bolt seal assembly with battery modules connection bracket, described bolt seal assembly comprises successively through metallic framework, the bolt of lower cover and battery modules connection bracket, the afterbody of bolt is combined with clamp nut, the bar portion cover of bolt has O-ring seal and seal rubber sleeve, described O-ring seal is between lower cover and battery modules connection bracket, described seal rubber sleeve seals and fits between clamp nut and battery modules connection bracket and with the bar portion of bolt.This programme solves the problem that the housing seal of electric motor car plastic battery is difficult to ensure.
Description
Technical field
The utility model relates to the battery container of electric motor car, specifically for the Hermetical connecting structure of battery of electric vehicle housing.
Background technology
At present, the battery container major part of electric motor car all adopts metal material, and shortcoming is that weight is large, and adopts plastics to replace metal material greatly can alleviate the weight of battery container, being conducive to the battery power consumption reducing electric motor car, is also the development trend of following battery of electric vehicle housing.
When designing plastic battery housing, because the rigidity of plastics, the performance such as intensity and impact resistance are all high not as good as metal material, thus one of current settling mode is: be rigidly connected with load capacity and impact by battery modules connection bracket in metallic framework and battery container, and battery container is made up of the upper cover of plastic material and lower cover, wherein lower cover is between metallic framework and battery modules connection bracket, plays a part to prevent foreign matter from entering.
Consider for safety and performance guarantee, the electric elements of battery of electric vehicle enclosure interior never allow water, dust and other foreign material to enter, and have very high sealing property requirement, industry all adopts high sealing grade IP67.And the main battery of electric motor car because of volume comparatively large, under being usually placed in the floor of crew module, driving has the erosion such as water, mud often, and during daily stop, dust is also a lot, proposes baptism to the sealing property of battery container.How to ensure that sealing property has become the technological difficulties in the application of plastic battery housing design.
Utility model content
The purpose of this utility model is to provide a kind of Hermetical connecting structure for battery of electric vehicle housing, and it can solve the problem that the housing seal of electric motor car plastic battery is difficult to ensure.
The technical solution of the utility model is as follows:
A kind of Hermetical connecting structure for battery of electric vehicle housing, comprise metallic framework, battery modules connection bracket in battery container and battery container, the lower cover of battery container is between metallic framework and battery modules connection bracket, described metallic framework, lower cover is connected by bolt seal assembly with battery modules connection bracket, described bolt seal assembly comprises successively through metallic framework, the bolt of lower cover and battery modules connection bracket, the afterbody of bolt is combined with clamp nut, the bar portion cover of bolt has O-ring seal and seal rubber sleeve, described O-ring seal is between lower cover and battery modules connection bracket, described seal rubber sleeve seals and fits between clamp nut and battery modules connection bracket and with the bar portion of bolt.
Further, described O-ring seal is bushing to be passed outside the metallic gasket of bolt shank in one, and the thickness of described metallic gasket is less than the diameter of section of O-ring seal.
Further, described seal rubber sleeve is nested in one through in the metal gasket ring of bolt shank, and the medial surface of described metal gasket ring is embedded in seal rubber sleeve.
Further, the medial surface of described seal rubber sleeve has the tapered protrusion of mating with the external screw thread of bolt.
Further, sealant is filled with between the internal thread of described clamp nut and the external screw thread of bolt.
The Hermetical connecting structure of this programme has taken into account the requirement of being rigidly connected of the metallic framework outside battery modules connection bracket and battery container and sealing property, reasonably bolt, O-ring seal, seal rubber sleeve and clamp nut are carried out Combination Design, utilize the feature that rubber extruded is out of shape, defence line is sealed together with respectively being formed with seal rubber sleeve place at O-ring seal, intercepting the impurity such as water, mud, dust enters in battery container, thus solves the technical barrier that plastic battery housing realizing sealing property in light-weighted design ap-plication and be difficult to ensure.
And by metallic gasket and O-ring seal bushing, on the one hand conveniently location is installed, ensures that O-ring seal is in the scope of limited compression on the other hand.And metal gasket ring is nested with seal rubber sleeve, except ensureing that seal rubber sleeve is in the scope of limited compression, also helping seal rubber sleeve and be out of shape to bolt shank and then fit tightly.Also by establishing tapered protrusion to strengthen sealing effectiveness at the medial surface of seal rubber sleeve.Additionally by filling sealing agent between the internal thread and the external screw thread of bolt of clamp nut to ensure sealing effectiveness further.When the impurity such as water, mud, dust are attempted to enter from Hermetical connecting structure, through above-mentioned multi-sealed defence line, effectively stoped outside battery container, be ensure that the sealing property of battery container.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model O-ring seal and metallic gasket;
Fig. 3 is for structure shown in Fig. 2 is in the generalized section in B direction;
Fig. 4 is the structural representation of the utility model seal rubber sleeve and metal gasket ring;
Fig. 5 is for structure shown in Fig. 4 is in the generalized section in C direction.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
For a Hermetical connecting structure for battery of electric vehicle housing, comprise the battery modules connection bracket 3 in metallic framework 1, battery container and battery container.Battery container is made up of upper cover and lower cover 2, and the lower cover 2 of battery container is between metallic framework 1 and battery modules connection bracket 3, and metallic framework 1, lower cover 2 and battery modules connection bracket 3 are connected and fixed by bolt seal assembly.Bolt seal assembly in said structure comprises the bolt 41 passing metallic framework 1, lower cover 2 and battery modules connection bracket 3 from top to bottom successively as shown in Figure 1, the bar portion cover of bolt 41 has O-ring seal 43 and seal rubber sleeve 44, and the key of this structure is to utilize O-ring seal 43 and seal rubber sleeve 44 to realize water proof and dust proof.O-ring seal 43 is pressed between lower cover 2 and battery modules connection bracket 3, the power compressed derives from the clamp nut 42 of bolt 41 afterbody, and the O-ring seal 43 after compression can stop the impurity such as water, mud, dust entered from bolt 41 head to enter space between battery container lower cover 2 and battery modules connection bracket 3.Seal rubber sleeve 44 is then invaded by bolt 41 afterbody further for intercepting the impurity such as water, mud, dust, seal rubber sleeve 44 is sealed between clamp nut 42 and battery modules connection bracket 3, makes seal rubber sleeve 44 be out of shape the bar portion fitted tightly at bolt 41 under the extruding of clamp nut 42.
For convenience of the installation of bolt 41, can the head projection welding of bolt 41 be fixed on metallic framework 1, also facilitate tightening of clamp nut 42 simultaneously.For ease of location, as shown in Figures 2 and 3, by bushing for O-ring seal 43 in thinner metallic gasket 45 outer, metallic gasket 45 is also enclosed within bolt 41 bar portion.When designing, according to the thickness of the elastically-deformable limit Design metallic gasket 45 of O-ring seal 43, when the limit extrudes, the one-tenth-value thickness 1/10 of metallic gasket 45 should be able to stop O-ring seal 43 to exceed elastically-deformable scope.
As shown in Figure 4 and Figure 5, seal rubber sleeve 44 is nested in a metal gasket ring 46, metal gasket ring 46 is also enclosed within bolt 41 bar portion, the annular inner portion of metal gasket ring 46 is made to be embedded in seal rubber sleeve 44, due to the existence of metal gasket ring 46, one carrys out seal rubber sleeve 44 can not by excessive compression, and two to carry out seal rubber sleeve 44 easier to the distortion of bolt 41 bar portion and then fit tightly.Radially uniform three tapered protrusion 47 of medial surface of seal rubber sleeve 44, the spatial match between two ridges of tapered protrusion 47 and bolt 41, in crush seal, is embedded between two ridges and fills space, to strengthen sealing effectiveness.
As sealing defence line, another road, between the internal thread of clamp nut 42 and the external screw thread of bolt 41, be filled with sealant, sealant cures after installation is fixing, even if impurity is through the thread gaps at seal rubber sleeve 44 place, also can by the obstruct of sealant.
Claims (5)
1. the Hermetical connecting structure for battery of electric vehicle housing, comprise metallic framework, battery modules connection bracket in battery container and battery container, the lower cover of battery container is between metallic framework and battery modules connection bracket, described metallic framework, lower cover is connected by bolt seal assembly with battery modules connection bracket, it is characterized in that: described bolt seal assembly comprises successively through metallic framework, the bolt of lower cover and battery modules connection bracket, the afterbody of bolt is combined with clamp nut, the bar portion cover of bolt has O-ring seal and seal rubber sleeve, described O-ring seal is between lower cover and battery modules connection bracket, described seal rubber sleeve seals and fits between clamp nut and battery modules connection bracket and with the bar portion of bolt.
2. the Hermetical connecting structure for battery of electric vehicle housing according to claim 1, is characterized in that: described O-ring seal is bushing to be passed outside the metallic gasket of bolt shank in one, and the thickness of described metallic gasket is less than the diameter of section of O-ring seal.
3. the Hermetical connecting structure for battery of electric vehicle housing according to claim 1 and 2, is characterized in that: described seal rubber sleeve is nested in one through in the metal gasket ring of bolt shank, and the medial surface of described metal gasket ring is embedded in seal rubber sleeve.
4. the Hermetical connecting structure for battery of electric vehicle housing according to claim 3, is characterized in that: the medial surface of described seal rubber sleeve has the tapered protrusion of mating with the external screw thread of bolt.
5. the Hermetical connecting structure for battery of electric vehicle housing according to claim 1 or 2 or 4, is characterized in that: be filled with sealant between the internal thread of described clamp nut and the external screw thread of bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776896.8U CN204243089U (en) | 2014-12-11 | 2014-12-11 | For the Hermetical connecting structure of battery of electric vehicle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776896.8U CN204243089U (en) | 2014-12-11 | 2014-12-11 | For the Hermetical connecting structure of battery of electric vehicle housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243089U true CN204243089U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776896.8U Active CN204243089U (en) | 2014-12-11 | 2014-12-11 | For the Hermetical connecting structure of battery of electric vehicle housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405994A (en) * | 2015-12-04 | 2016-03-16 | 重庆长安汽车股份有限公司 | Sealing structure for connector of power battery |
-
2014
- 2014-12-11 CN CN201420776896.8U patent/CN204243089U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405994A (en) * | 2015-12-04 | 2016-03-16 | 重庆长安汽车股份有限公司 | Sealing structure for connector of power battery |
| CN105405994B (en) * | 2015-12-04 | 2018-01-30 | 重庆长安汽车股份有限公司 | A kind of electrokinetic cell connector sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181016 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee before: Chongqing Changan Automobile Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |