CN209298220U - A kind of battery pack lower case structure and the new-energy automobile with it - Google Patents
A kind of battery pack lower case structure and the new-energy automobile with it Download PDFInfo
- Publication number
- CN209298220U CN209298220U CN201920232049.8U CN201920232049U CN209298220U CN 209298220 U CN209298220 U CN 209298220U CN 201920232049 U CN201920232049 U CN 201920232049U CN 209298220 U CN209298220 U CN 209298220U
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- China
- Prior art keywords
- battery pack
- lower body
- lower case
- sealant layer
- case structure
- Prior art date
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- 239000000565 sealant Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000003466 welding Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000012868 Overgrowth Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a kind of battery pack lower case structure, the circumferential lower body to form the closing chamber for accommodating battery pack including being connected to battery pack upper housing, the lower body is multi-layer sealing structure, and the lower body includes the inner sealant layer close to the battery pack upper housing, and the connecting hole of attachment in assembly battery pack is formed on the inner sealant layer.The utility model further relates to a kind of new-energy automobile, by the way that the lower body of battery pack shell structure is designed to multi-layer sealing structure, and the connecting hole of threaded hole is formed directly on inner sealant layer by process modification, avoid the structural strength and leakproofness of punching and destroy lower body itself on sealant, simple structure is feasible, does not increase cost and can be effectively improved existing battery pack housing and protects weaker problem.
Description
Technical field
The utility model relates to a kind of body of a motor car field more particularly to a kind of battery pack lower case structure and with its
New-energy automobile.
Background technique
As people's living standard is gradually increased, automobile is also more and more used in people's lives, work.
Automobile is widely used in many industries, therefore, automobile has become essential in modern's daily life
The vehicles.Kinds of automobile is more, classifies according to purposes, and automobile includes car, car and lorry；However as automobile
The fast development of industry, vehicle exhaust causes day further heavy pollution to environment, in order to avoid more serious pollution, new energy
Vehicle industry is also largely applied to passenger and freight field by us.New energy vehicle refers to using unconventional vehicle fuel as dynamic
Power source, and the advanced technology of the dynamic Control of comprehensive vehicle and driving aspect, the technical principle of formation is advanced, and has new skill
The automobile of art, new construction.
Currently, new energy vehicle includes four major types: mixed power electric car, pure electric automobile, fuel battery electric vapour
Vehicle and other new-energy automobiles；Motor driven, motor-driven power main source are directlyed adopt using the automobile being driven by electricity
In battery, battery is generally fixedly installed on electric car in the form of battery pack, and battery pack needs to adopt in fixation procedure
It is placed with battery pack housing, and battery pack housing is fixedly installed on chassis runner, but existing battery pack housing is close
Sealing property is poor, and while the car is driving, and battery pack lower case bottom, which is easy to happen, knocks bottom, knock bottom it is serious when, battery pack
Shell can generate micro-crack and even crack, and during using the vehicle, extraneous water can be directly entered battery pack enclosure interior,
Cause battery pack that insulation fault and short circuit occurs, it is on fire also to will cause vehicle when serious, therefore the leakproofness of battery pack housing and
Intensity not only will affect the performance of battery pack and using the time, also will affect traffic safety of the electric car in driving procedure,
And existing battery pack housing is difficult to meet the needs used.
Utility model content
It knocks bottom in view of this, can improve battery pack housing seal and intensity it is necessary to provide one kind and be avoided that again and makes
At the battery pack lower case structure of battery pack housing cracking and with its new-energy automobile.
The utility model provides a kind of battery pack lower case structure, including being connected to the circumferential with shape of battery pack upper housing
At the lower body for the closing chamber for accommodating battery pack, the lower body is multi-layer sealing structure, and the lower body includes close to institute
The inner sealant layer of battery pack upper housing is stated, the connecting hole of attachment in assembly battery pack is formed on the inner sealant layer.
In one embodiment, the lower body includes the outer sealing layers on the outside of the inner sealant layer, and the external seal
Layer is the sealing structure of at least one layer of sealant.
In one embodiment, between the inner sealant layer and the outer sealing layers and the outer sealing layers of multilayer it is each
Pass through solder design between layer.
In one embodiment, the connecting hole is threaded hole, and the connecting hole with steel-wire screw-socket, bolt by cooperating, by institute
State the inner sealant layer that attachment in battery pack is fixed in the lower body.
In one embodiment, the lower body includes the supporting element being fixed on the inner sealant layer.
In one embodiment, the lower body includes the corresponding closing chamber and the first staking on the inner sealant layer
Nut, attachment can be assemblied at first rivet nut on the inner sealant layer in the battery pack.
In one embodiment, the circumferential edge of the inner sealant layer of the lower body, which is equipped with, assembles the battery pack upper casing
Second rivet nut of body；It is additionally provided with gasket between the battery pack upper housing and the lower body, bolt is each passed through
The battery pack upper housing and gasket, and it is inserted into the second rivet nut fastening, the battery pack upper housing is installed on institute
Lower body is stated, and the gasket is set to the junction of the battery pack upper housing and the lower body.
In one embodiment, the lower body includes bottom plate and the circumferential direction for being fixed in the bottom plate and towards the same of the bottom plate
Side bar made of epitaxial lateral overgrowth is stretched, the bottom plate include an at least welding block.
In one embodiment, the inside of the bottom plate of the lower body and/or the side bar is equipped with reinforcing rib.
The utility model additionally provides a kind of new-energy automobile, including above-described battery pack lower case structure.
To sum up, the lower body of battery pack shell structure is designed to multi-layer sealing structure by the utility model, and passes through technique
The connecting hole for improving and being formed directly on inner sealant layer threaded hole, avoids punching on sealant and destroying lower body itself
Structural strength and leakproofness, simple structure is feasible, does not increase cost and can be effectively improved existing battery pack housing and protects weaker ask
Topic solves existing battery pack housing and battery pack housing is caused to crack when encountering and seriously knocking bottom, occurs so as to cause battery pack exhausted
Reason barrier and risk that is short-circuit and causing vehicle on fire.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structure for the specific embodiment that the utility model battery pack lower case structure is connect with battery pack upper housing
Schematic diagram；
Fig. 2 is the schematic cross-section that battery pack lower case structure is connect with battery pack upper housing in Fig. 1.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to the utility model, detailed description are as follows.
As shown in Fig. 1 ~ Fig. 2, the utility model provides a kind of battery pack lower case structure comprising is connected to battery
Wrap the circumferential lower body 10 to form the closing chamber for accommodating battery pack of shell 20.
Wherein, lower body 10 provided by the utility model is multi-layer sealing structure (referring to Fig. 2).Specifically, lower body 10
Including the inner sealant layer 11 close to battery pack upper housing 20 and the outer sealing layers 13 set on 11 outside of inner sealant layer, and this is practical new
In type, outer sealing layers 13 are the sealing structure of at least one layer of sealant.Due to the limitation of battery pack installation space, this is practical new
In the preferred embodiment that type provides, outer sealing layers 13 are the sealing structure of one layer of sealant, be that is to say, the utility model provides
A specific embodiment in, lower body 10 be double-layer sealing structure.
The lower body 10 of double-layer sealing structure is mounted on as a whole on the vehicle body of new-energy automobile, in new energy
It is encountered in running car in the case where knocking bottom (the outer closure layer for knocking lower body 10), due to lower of battery pack lower case structure
Body 10 is double-layer sealing structure, and after the shell at outer sealing layers 13 is knocked bad breakage, there are still inner sealant layers 11, will not be right
Battery pack damages, so that entire battery pack is still able to satisfy protection safety rank (IP67).
It is appreciated that in the case where the license of the assembly space of battery pack and sealed cell pack housing, the utility model
Middle outer sealing layers 13 can be also the sealing structure of the multi-layer sealed layer such as 2 layers of sealant, 3 layers of sealing sealant, 4 layers of sealant, with
After outermost sealant knocks bad breakage, battery pack will not both be damaged, the outer sealing layers of internal layer still have protection electricity
The effect of Chi Bao can be set as needed, specifically not about the number of plies (the sealant number of plies of lower body 10) of outer sealing layers 13
It is limited.
Battery pack lower case simple structure and reasonable design provided by the utility model, does not increase weight and cost, and multilayer is close
The lower body 10 of sealing improves the sealing protection grade of battery pack lower case, can larger promotion class of safety protection.
Further, in the utility model between inner sealant layer 11 and outer sealing layers 13 and each layer of outer sealing layers 13
Between connected by weld seam 17.Weld seam is the high temperature using welding heat source, the metal molten of welding rod and seam crossing is formed by connecting
Seam, formed after weld metal is cooling, two weldments connections are integral.Currently, shape and weldering of the weld seam according to weld metal
The difference of part mutual alignment divides butt weld, fillet weld, plug weld and arc spot welding etc..
In the utility model, the connecting hole 12 of attachment in assembly battery pack is formed on inner sealant layer 11.One is preferably implemented
In example, connecting hole 12 is threaded hole, and connecting hole 12 is direct on the inner sealant layer 11 of lower body 10 by technology
It is formed, avoids punching (drilling) on the sealant of molding lower body 10 and destroying 10 self structure intensity of lower body and sealing
Property, improve the self structure intensity and leakproofness of lower body 10.
In more detail, attachment (not shown) refers in battery pack: the battery modules that have inside current battery seal casinghousing, water
The attachmentes such as cooling system, electrical system；Connecting hole 12 cooperates by tapping thread, and further combined with steel-wire screw-socket and with bolt,
Bonding strength of the connecting hole 12 directly with bolt cooperation after enhancing tapping thread, is fixed in lower body for battery pack securely
On 10 inner sealant layer 11.The position of connecting hole 12 provided by the utility model according to battery pack lower body 10 inner sealant layer
Installation on 11 is needed and is designed, specifically with no restrictions.
In the utility model, lower body 10 further includes corresponding seal chamber (for accommodating battery pack) and is located at inner sealant layer 11
On the first rivet nut, attachment can be also assemblied on inner sealant layer 11 at first rivet nut (not shown) in battery pack, and
First rivet nut is can the self-enclosed rivet nut of staking blind hole.It is appreciated that attachment can pacify in battery pack in the utility model
At threaded hole (emphasis refer to Fig. 2) on inner sealant layer 11, or be mounted on inner sealant layer 11 for can staking blind hole from
At the first rivet nut for sealing rivet nut.
Further, attachment is installed on threaded hole in heavier, important and more demanding installation strength battery pack
Place, compared with gently, in installation strength battery pack of less demanding attachment is installed on the first rivet nut.
In the utility model, the circumferential edge of the inner sealant layer 11 of lower body 10 is equipped with assembly battery pack upper housing 20
Second rivet nut 31, and the second rivet nut 31 be as the first rivet nut (not shown) can the self-enclosed drawing of staking blind hole
Riveting nut；With reference to Fig. 1 and Fig. 2, in the utility model, gasket is additionally provided between battery pack upper housing 20 and lower body 10
14.Bolt 32 is each passed through battery pack upper housing 20 and gasket 14, and is inserted into the fastening of the second rivet nut 31, in battery pack
Shell 20 is installed on lower body 10, and gasket 14 is set to the junction of battery pack upper housing 20 and lower body 10.
In detail, as shown in Fig. 2, being equipped with corresponding the close to the circumferential ends edge of lower body 10 on battery pack upper housing 20
The flange of two rivet nuts 31, flange and gasket 14 are equipped with corresponding the second rivet nut 31 being welded on inner sealant layer 11
Through-hole, the second rivet nut that bolt 32 is each passed through the through-hole on flange and gasket 14, and is inserted on inner sealing layer 11
It is fastened in 31, battery pack upper housing 20 is hermetically connected to lower body 10, effectively improve battery pack in battery pack upper housing
The leakproofness installed in the closing chamber formed between 20 and lower body 10.
Rivet nut draws cap, moment to draw the fastening field of cap, meltable to solve sheet metal, light wall pipe welded nut, attacks interior
The disadvantages of screw thread is easy to slip teeth and develop, it had not both needed tapping thread or had not needed welded nut, rivet it is secured, high-efficient and
It is easy to use.
In the utility model, lower body 10 further includes the supporting element being fixed on inner sealant layer 11, to improve lower body 10
The intensity of self structure.In a specific embodiment provided by the utility model, supporting element can be supporting block or support plate, and support
Part by welding is fixed on inner sealant layer 11, and by supporting element tapping thread realization be connected and fixed.
In other specific embodiments, about the specific structure and content of supporting element, it can refer to the prior art, specifically exist
This is with no restrictions.
In the utility model, lower body 10 includes bottom plate 15 and the circumferential direction for being fixed in bottom plate 15 and towards the same side of bottom plate 15
The side bar 16 extended outward to form that is to say that bottom plate 15 is recessed to form the recess for accommodating assembly battery pack relative to side bar 16,
And the bottom plate 15 in the utility model includes an at least welding block.Specifically, the side bar 16 in the utility model is connected by welding
It is connected to the circumferential edge of bottom plate 15, it is whole lower body 10 is collectively formed with bottom plate 15.
It further, can be by being equipped with reinforcing rib in the bottom plate 15 of lower body 10 and/or the inside of side bar 16, under reinforcement
The intensity of ontology 10 itself can reduce the extent of damage, and reinforcement provided by the utility model when lower body 10 is collided with
Shape, position and the size of muscle can be designed according to actual needs.
The utility model additionally provides a kind of new-energy automobile, including above-described battery pack lower case structure.It is related
It is assembled in other components of battery pack lower case structure and battery pack upper housing and new-energy automobile, the content of specific structure,
It can refer to the prior art, specific this will not be repeated here.
In conclusion the utility model is by being designed to multi-layer sealing structure for the lower body of battery pack shell structure, and
The connecting hole for forming threaded hole directly on inner sealant layer by process modification, avoids punching on sealant and destroying lower
The structural strength and leakproofness of body itself, simple structure is feasible, does not increase cost and can be effectively improved existing battery pack housing and prevents
Weaker problem is protected, existing battery pack housing is solved and battery pack housing is caused to crack when encountering and seriously knocking bottom, so as to cause battery
Insulation fault and risk that is short-circuit and causing vehicle on fire occur for packet.
More than, it is only the preferred embodiment of the utility model, limit in any form not is made to the utility model
System, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, does when using the technology contents of the disclosure above
A little change or it is modified to the equivalent embodiment of equivalent variations out, but all without departing from the content of the technical scheme of the utility model, according to
According to the technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, still fall within
In the range of technical solutions of the utility model.
Claims (10)
1. a kind of battery pack lower case structure, which is characterized in that including being connected to the circumferential to be formed of battery pack upper housing (20)
The lower body (10) of the closing chamber of battery pack is accommodated, the lower body is multi-layer sealing structure, and the lower body (10) includes
Close to the inner sealant layer (11) of the battery pack upper housing (20), it is included that assembly battery pack is formed on the inner sealant layer (11)
The connecting hole (12) of part.
2. battery pack lower case structure according to claim 1, which is characterized in that the lower body (10) includes being set to institute
The outer sealing layers (13) on the outside of inner sealant layer (11) are stated, and the outer sealing layers (13) are the sealing knot of at least one layer of sealant
Structure.
3. battery pack lower case structure according to claim 2, which is characterized in that the inner sealant layer (11) and described outer
It is connected between sealant (13) and by weld seam (17) between each layer of the outer sealing layers (13) of multilayer.
4. battery pack lower case structure according to claim 1, which is characterized in that the connecting hole (12) is threaded hole,
Attachment in the battery pack is fixed in the lower body (10) by cooperating with steel-wire screw-socket, bolt by the connecting hole (12)
Inner sealant layer (11).
5. battery pack lower case structure according to claim 1, which is characterized in that the lower body (10) includes being fixed in
Supporting element on the inner sealant layer (11).
6. battery pack lower case structure according to claim 1 or 4, which is characterized in that the lower body (10) includes pair
The closing chamber and the first rivet nut on the inner sealant layer (11) are answered, attachment can be assemblied in interior in the battery pack
At first rivet nut on sealant (11).
7. battery pack lower case structure according to claim 1, which is characterized in that the lower body (10) it is described interior close
The circumferential edge of sealing (11) is equipped with the second rivet nut (31) for assembling the battery pack upper housing (20)；The battery pack
It is additionally provided with gasket (14) between upper housing (20) and the lower body (10), bolt (32) is each passed through in the battery pack
Shell (20) and gasket (14), and it is inserted into the second rivet nut (31) fastening, battery pack upper housing (20) installation
In the lower body (10), and the gasket (14) is set to the company of the battery pack upper housing (20) and the lower body (10)
Meet place.
8. battery pack lower case structure according to claim 1, which is characterized in that the lower body (10) includes bottom plate
(15) and side bar (16) made of being fixed in the circumferential direction of the bottom plate (15) and extending outwardly towards the same side of the bottom plate (15),
The bottom plate (15) includes an at least welding block.
9. battery pack lower case structure according to claim 8, which is characterized in that the bottom plate of the lower body (10)
(15) and/or the inside of the side bar (16) is equipped with reinforcing rib.
10. a kind of new-energy automobile, which is characterized in that including battery pack lower case knot described in any one of claim 1-9
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232049.8U CN209298220U (en) | 2019-02-20 | 2019-02-20 | A kind of battery pack lower case structure and the new-energy automobile with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232049.8U CN209298220U (en) | 2019-02-20 | 2019-02-20 | A kind of battery pack lower case structure and the new-energy automobile with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209298220U true CN209298220U (en) | 2019-08-23 |
Family
ID=67642955
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920232049.8U Active CN209298220U (en) | 2019-02-20 | 2019-02-20 | A kind of battery pack lower case structure and the new-energy automobile with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209298220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074552A (en) * | 2020-08-21 | 2022-02-22 | 广州汽车集团股份有限公司 | Fuel cell automobile insulation detection method and vehicle control unit |
-
2019
- 2019-02-20 CN CN201920232049.8U patent/CN209298220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074552A (en) * | 2020-08-21 | 2022-02-22 | 广州汽车集团股份有限公司 | Fuel cell automobile insulation detection method and vehicle control unit |
| CN114074552B (en) * | 2020-08-21 | 2023-08-08 | 广州汽车集团股份有限公司 | Fuel cell automobile insulation detection method and whole automobile controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220105 Address after: 511400 No.36 Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |