CN203596396U - Anti-impact lithium battery for electric vehicle - Google Patents
Anti-impact lithium battery for electric vehicle Download PDFInfo
- Publication number
- CN203596396U CN203596396U CN201320770474.5U CN201320770474U CN203596396U CN 203596396 U CN203596396 U CN 203596396U CN 201320770474 U CN201320770474 U CN 201320770474U CN 203596396 U CN203596396 U CN 203596396U
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- China
- Prior art keywords
- battery
- metal shell
- electric vehicle
- buffer bar
- battery core
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- 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.)
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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
Abstract
The utility model relates to the technical field of lithium batteries for electric vehicles, in particular to an anti-impact lithium battery for an electric vehicle. The surface of the lithium battery is coated with a composite insulating layer; the composite insulating layer tightly wraps the outer surface of a battery cell group to prevent sharp objects from impacting the battery cell group under the extreme impact environment; at least two buffer strips are arranged on the inner wall of a metal casing, arranged in the overlaying direction of battery cells of the battery cell group, and propped against the composite insulating layer, so that a buffer medium is arranged in a space between each battery cell and the metal casing; the force applied to each battery cell is uniform, so that the situation that due to impact, the electric vehicle is damaged during the running process can be avoided, and the problem of deformation of the battery cell group caused by non-uniformity in force applied to the battery cells can be effectively solved; in addition, a strip-shaped buffer structure is adopted, and a radiating space is reserved between every two adjacent buffer strips, so that heat generated by the battery cell group can be transmitted to the metal casing, and further the heat is radiated outwards through the metal casing.
Description
Technical field
The utility model relates to electric vehicle lithium battery technical field, particularly a kind of electric vehicle lithium battery of anticollision.
Background technology
Along with the minimizing of petroleum-based energy and the raising of environmental consciousness, electric motor car receives increasing concern, and its popularity is more and more higher.Electric motor car is substantially all using battery as energy source, by the parts such as controller, motor, is mechanical energy motion by electric energy conversion.Visible, battery is the energy source of electric motor car, belongs to the parts of core.At present.Lithium ion battery because the lead-acid battery with respect to traditional is more efficient, safety, environmental protection, and weight is little, long service life, therefore most electric motor car all adopts lithium ion battery as cell device.
Present stage, the lithium ion battery that electric motor car uses generally adopts the lithium ion battery cell of soft roll structure, and electric motor car inevitably has many jolting in traveling process, and then easily makes battery clash into.The battery core of soft roll structure is subject to external force collision easily to cause damage, forms breakage and causes leakage, flatulence, the safety issue such as short circuit, burning even.Therefore it is very necessary the lithium battery of electric motor car being carried out to anticollision processing.
At present, it is mainly the buffer substance such as filling sponge between battery core and shell that the anticollision of battery is processed, thereby reaches the object of buffering.The patent that is 201549551U as the patent No. discloses a kind of lithium-ion battery pack anti-vibration device for motor-driven vehicle; Comprise the epoxy resin board being arranged between electric motor car lithium ion battery group battery core and aluminum alloy casing, between epoxy resin board and aluminum alloy casing, shakeproof layer is installed, shakeproof layer is flame-retardant sponge rubber.Although adopt this structure can prevent that lithium ion battery from clashing into, and also brought new potential safety hazard.Because lithium ion battery self has internal resistance, in charge and discharge process, inevitably can produce heat, and the general heat conductivility of flame-retardant sponge is poor, this heat that just makes battery core produce cannot effectively be distributed, cause battery pack temperature in charge and discharge process sharply to rise, high temperature not only can affect the useful life of lithium battery for a long time, more seriously also has the potential safety hazard that spontaneous combustion occurs, and this has also affected the security performance of electric motor car.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and electric vehicle lithium battery that a kind of anticollision is provided, it can either effectively prevent the electric motor car damage that battery produces because of shock in traveling process, also can guarantee battery core efficiently radiates heat simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
A kind of electric vehicle lithium battery of anticollision is provided, comprise metal shell and the battery core pack being at least formed by stacking by two battery cores, described battery core pack outer surface is coated with composite insulation layer, between described metal shell and described battery core pack, be at least provided with two buffer bar, the length direction of described buffer bar is along the battery core Direction of superposition setting of described battery core pack and be connected to described composite insulation layer, between described adjacent buffer bar, retains and has heat-dissipating space.
Wherein, described metal shell is by the integrated metal shell of aluminium alloy.
Wherein, described metal shell is the metal shell of multiaspect column, and each sidewall of the inwall of described metal shell is provided with described buffer bar.
Wherein, each sidewall of the inwall of described metal shell is all only provided with a described buffer bar.
Wherein, the sidewall of described metal shell is provided with heat radiation curved surface.
Wherein, the sidewall of described metal shell is at least provided with the heat radiation curved surface of two indents, and described buffer bar is arranged between described heat radiation curved surface.
Wherein, described buffer bar is the buffer bar by flame-retardant sponge material.
The beneficial effects of the utility model: the utility model provides a kind of electric vehicle lithium battery of anticollision, because battery core pack outer surface is coated with composite insulation layer, composite insulation layer is closely wrapped in battery core pack outer surface both can make battery core pack and outside (particularly metal shell) insulation, also can make each battery core be closely linked and form on-deformable battery core pack, can also in extreme impact environment, prevent the impact of sharp objects to battery core pack, metal shell inwall is at least provided with two buffer bar, and buffer bar is along the battery core Direction of superposition setting of battery core pack and be connected to described composite insulation layer, therefore between every a slice battery core and metal shell, all there is buffer medium, and every a slice battery core is stressed evenly, can avoid the damage producing because of shock in electric motor car traveling process, also can effectively avoid the problem of the battery core pack distortion causing due to each battery core unbalance stress simultaneously, in addition, owing to adopting the buffer structure of strip, between adjacent buffer bar, retain and have heat-dissipating space, therefore the heat that battery core pack produces can be passed to metal shell, and then outwards dispel the heat by metal shell.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of the electric vehicle lithium battery of a kind of anticollision of the utility model.
In Fig. 1, include:
1---metal shell, 2---battery core pack, 3---composite insulation layer, 4---buffer bar, 5---heat-dissipating space,
6---heat radiation curved surface.
Embodiment
With the following Examples the utility model is further described.
The embodiment of the electric vehicle lithium battery of a kind of anticollision of the utility model, as shown in Figure 1, comprise: metal shell 1 and the battery core pack 2 being formed by stacking by multiple battery cores, battery core pack 2 outer surfaces are coated with composite insulation layer 3, metal shell 1 inwall is provided with four buffer bar 4, buffer bar 4 arranges and is connected to composite insulation layer 3 along the battery core Direction of superposition (in the present embodiment, battery core superposes from top to bottom and forms battery core pack 2) of battery core pack 2, between adjacent buffer bar 4, retains and has heat-dissipating space 5.
Because battery core pack 2 outer surfaces are coated with composite insulation layer 3, composite insulation layer 3 is closely wrapped in battery core pack 2 outer surfaces both can make battery core pack 2 and outside (particularly metal shell 1) insulation, also can make each battery core be closely linked and form on-deformable battery core pack 2, can also in extreme impact environment, prevent the impact of sharp objects to battery core pack 2, metal shell 1 inwall is at least provided with two buffer bar 4, and buffer bar 4 is along the battery core Direction of superposition setting of battery core pack 2 and be connected to composite insulation layer 3, therefore between every a slice battery core and metal shell, all there is buffer medium, and every a slice battery core is stressed evenly, can avoid the damage producing because of shock in electric motor car traveling process, also problem simultaneously that can effectively avoid the battery core pack 2 causing due to each battery core unbalance stress to be out of shape, in addition, owing to adopting the buffer structure of strip, between adjacent buffer bar 4, retain and have heat-dissipating space 5, therefore the heat that battery core pack 2 produces can be passed to metal shell 1, and then outwards dispel the heat by metal shell 1.
Metal shell 1 is by the integrated metal shell 1 of aluminium alloy.Metal shell 1 adopts aluminum alloy materials to be made of one piece, and not only thermal diffusivity is good, and lightweight, is applicable to electric motor car demand.
Metal shell 1 is the metal shell 1 of four sides column, and each sidewall of the inwall of metal shell 1 is provided with a buffer bar 4.Adopt this structure, not only can more firmly fix buffer bar 4, and can effectively prevent that by being arranged at cooperation between the buffer bar 4 on ipsilateral not battery core pack 2 is because clashing into the damage that causes (be battery core pack 2 no matter clash into which face all can effectively be cushioned), further, because each face only has a buffer bar 4, therefore battery core pack 2 can have enough heat-dissipating spaces 5, can effectively guarantee radiating effect.Certainly, according to concrete needs, this metal shell 1 can also be the structure of other multiaspect columns, for example six posts, octagon column etc.In addition, each side also can arrange many buffer bar 4 as required, and principal security is retained enough heat-dissipating spaces 5.
The side of metal shell 1 is at least provided with the heat radiation curved surface 6 of two indents, and buffer bar 4 is arranged between heat radiation curved surface 6.Buffer bar 4 is arranged between the heat radiation curved surface 6 of two indents, the female parts of heat radiation curved surface 6 can provide more heat-conducting area, thereby it is too high to make up cannot the dispel the heat temperatures at localized regions that causes of buffer bar 4 setting areas, has guaranteed the efficiently radiates heat of battery core pack 2 at regional.Certainly, metal shell 1 can also arrange more heat radiation curved surface 6 to play better radiating effect.
Buffer bar 4 is buffer bar 4 of being made up of flame-retardant sponge.Flame-retardant sponge not only plays cushioning effect, but also the blocking-up of can burning the in the situation that of battery core pack 2 spontaneous combustion, avoids causing the fire of car load.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. the electric vehicle lithium battery of an anticollision, comprise metal shell and the battery core pack being at least formed by stacking by two battery cores, it is characterized in that, described battery core pack outer surface is coated with composite insulation layer, between described metal shell and described battery core pack, be at least provided with two buffer bar, the length direction of described buffer bar is along the battery core Direction of superposition setting of described battery core pack and be connected to described composite insulation layer, between described adjacent buffer bar, retains and has heat-dissipating space.
2. the electric vehicle lithium battery of a kind of anticollision as claimed in claim 1, is characterized in that: described metal shell is by the integrated metal shell of aluminium alloy.
3. a kind of electric vehicle lithium battery of anticollision as claimed in claim 1, is characterized in that: described metal shell is the metal shell of multiaspect column, each sidewall of described metal shell is provided with described buffer bar.
4. a kind of electric vehicle lithium battery of anticollision as claimed in claim 3, is characterized in that: each sidewall of described metal shell is all only provided with a described buffer bar.
5. a kind of electric vehicle lithium battery of anticollision as claimed in claim 1, is characterized in that: the sidewall of described metal shell is provided with heat radiation curved surface.
6. a kind of electric vehicle lithium battery of anticollision as claimed in claim 1, is characterized in that: the sidewall of described metal shell is at least provided with the heat radiation curved surface of two indents, described buffer bar is arranged between described heat radiation curved surface.
7. a kind of electric vehicle lithium battery of anticollision as claimed in claim 1, is characterized in that: described buffer bar is the buffer bar of flame-retardant sponge material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770474.5U CN203596396U (en) | 2013-11-30 | 2013-11-30 | Anti-impact lithium battery for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770474.5U CN203596396U (en) | 2013-11-30 | 2013-11-30 | Anti-impact lithium battery for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596396U true CN203596396U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320770474.5U Expired - Fee Related CN203596396U (en) | 2013-11-30 | 2013-11-30 | Anti-impact lithium battery for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203596396U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833994A (en) * | 2017-10-23 | 2018-03-23 | 捷开通讯(深圳)有限公司 | A kind of battery and its manufacture method, electronic equipment |
| WO2019028569A1 (en) * | 2017-08-10 | 2019-02-14 | 付萌华 | Battery holder having protection cavities |
| CN113690518A (en) * | 2020-05-15 | 2021-11-23 | 有量科技股份有限公司 | Uniform temperature heat dissipation module structure of lithium battery |
-
2013
- 2013-11-30 CN CN201320770474.5U patent/CN203596396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019028569A1 (en) * | 2017-08-10 | 2019-02-14 | 付萌华 | Battery holder having protection cavities |
| CN107833994A (en) * | 2017-10-23 | 2018-03-23 | 捷开通讯(深圳)有限公司 | A kind of battery and its manufacture method, electronic equipment |
| CN113690518A (en) * | 2020-05-15 | 2021-11-23 | 有量科技股份有限公司 | Uniform temperature heat dissipation module structure of lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |