CN207250628U - A kind of power battery and electric automobile - Google Patents
A kind of power battery and electric automobile Download PDFInfo
- Publication number
- CN207250628U CN207250628U CN201721260498.0U CN201721260498U CN207250628U CN 207250628 U CN207250628 U CN 207250628U CN 201721260498 U CN201721260498 U CN 201721260498U CN 207250628 U CN207250628 U CN 207250628U
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- Prior art keywords
- power battery
- bar
- bus
- battery core
- wire
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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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Abstract
The utility model provides a kind of power battery and electric automobile, which includes：Positive bus, negative bus-bar and multiple battery cores parallel to each other；Wherein, multiple connecting holes are provided with the positive bus, the cathode connection of each battery core is connected by wire with the connecting hole, to realize that the battery core is connected with the positive bus；The negative bus-bar is platy structure, and is fixedly connected with the anode of each battery core.The positive and negative anodes of power battery can be intuitively distinguished very much in the utility model from the appearance, power battery provided by the utility model possesses overcurrent protection function.
Description
Technical field
Electric automobile part field is the utility model is related to, more particularly to a kind of power battery and electric automobile.
Background technology
Power battery provides power as one of most important component in electric automobile for the movement of electric automobile.It is logical
The power battery that the power battery of electric automobile forms for multiple battery cores in parallel in the case of often.By the cathode of all battery cores and bear
Pole is connected respectively on positive bus and negative bus-bar.And generally by the way of resistance welding or ultrasonic bonding
Battery core and positive bus and negative bus-bar are welded.
When being welded by the way of resistance welding, generally using conductive connecting piece complete battery core and negative bus-bar it
Between welding, larger irreversible damage is so not only caused to battery core, while also increase the weight of power battery, and
The power battery of battery core composition does not also possess overcurrent protection function.
When being welded by the way of ultrasonic bonding, generally use aluminium wire connects battery core and negative bus-bar respectively.
But the positive and negative anodes of the power battery of battery core composition can not be distinguished from appearance.
Utility model content
The utility model provides a kind of power battery and electric automobile, to solve intuitively distinguish in the prior art
The positive and negative anodes and power battery of power battery do not possess the problem of overcurrent protection function.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：
One side according to the utility model, there is provided a kind of power battery, including：Positive bus, anode confluence
Row and multiple battery cores parallel to each other；
Wherein, multiple connecting holes are provided with the positive bus, the cathode of each battery core by wire with
The connecting hole connection, to realize that the battery core is connected with the positive bus；
The negative bus-bar is platy structure, and is fixedly connected with the anode of each battery core.
Further, the thickness of the negative bus-bar is more than or equal to 0.4 millimeter, less than or equal to 3.0 millimeters.
Further, the wire is aluminium wire.
Further, the diameter of the aluminium wire is more than or equal to 0.2286 millimeter, less than or equal to 0.3810 millimeter；The aluminium wire
Length be more than or equal to 7 millimeters, less than or equal to 12 millimeters.
Further, the battery core is cylindrical.
Further, the edge of the negative bus-bar is provided with anode projection, and the anode projection is converged with the anode
Stream row is generally aligned in the same plane.
Further, the edge of the positive bus is provided with cathode projection, and the cathode projection is converged with the cathode
Stream row is generally aligned in the same plane.
Further, the negative bus-bar is solid platy structure.
Another aspect according to the utility model, there is provided a kind of electric automobile, including power battery as described above.
The beneficial effects of the utility model are：
Above-mentioned technical proposal, positive bus are provided with multiple connecting holes, one end of a wire and the cathode of a battery core
Connection, the other end are connected through a connecting hole with positive bus.Positive bus and battery core are connected by wire, when excessive
Electric current flow through the wire, can fuse the wire, so that the circuit where disconnecting power battery, and then be power battery
Overcurrent protection function is provided.Negative bus-bar is platy structure, can intuitively be distinguished very much from the appearance with positive bus,
That is the positive and negative anodes of power battery can be easily discriminated；Negative bus-bar and the anode of battery core are directly connected to, and avoiding makes
The problem of power battery caused by with connector connection is overweight.
Brief description of the drawings
One of power battery schematic diagram provided Fig. 1 shows the utility model embodiment；
Fig. 2 represents the two of the power battery schematic diagram that the utility model embodiment provides.
Description of reference numerals：
11st, battery core；12nd, positive bus；121st, connecting hole；122nd, cathode projection；13rd, negative bus-bar；131st, anode
Projection；14th, wire.
Embodiment
The exemplary embodiment of the utility model is more fully described below with reference to accompanying drawings.Although this is shown in attached drawing
The exemplary embodiment of utility model, it being understood, however, that may be realized in various forms the utility model without should be by here
The embodiment of elaboration is limited.Conversely, there is provided these embodiments are to be able to be best understood from the utility model, and energy
It is enough that the scope of the utility model is completely communicated to those skilled in the art.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of power battery, which includes：
Positive bus 12, negative bus-bar 13 and multiple battery cores 11 parallel to each other；
Wherein, be provided with multiple connecting holes 121 on positive bus 12, the cathode of each battery core 11 by wire 14 with
Connecting hole 121 connects, to realize that battery core 11 is connected with positive bus 12；
Negative bus-bar 13 is platy structure, and is fixedly connected with the anode of each battery core 11.
It should be noted that wire 14 can be connected to pass through connecting hole 121 with positive bus 12, each battery core 11 is divided
It is not connected by a wire 14 with positive bus 12, positive bus 12 is provided with multiple connecting holes 121, wire 14
One end be connected with the cathode of a battery core 11, the other end is connected through a connecting hole 121 with positive bus 12；It can lead to
The mode of welding is crossed, the both ends of wire 14 are welded to the cathode of positive bus 12 and battery core 11.In order to reduce pair
The damage of battery core 11, preferably, wire 14 and positive bus 12 and battery core can be completed by the way of ultrasonic bonding
Welding between 11 cathode.When excessive electric current flows through the wire 14, can fuse the wire 14, so as to disconnect power
Circuit where battery, and then provide overcurrent protection function for power battery.In order to enable power battery has more preferably overcurrent
Defencive function, the material of wire 14 can be the material of fuse in existing electricity field safeties, such as can be lead
Antimony alloy, yellow gold, aluminium alloy and aluminium etc..Connecting hole 121 serves not only as the passage that wire 14 passes through, and also serves as at the same time
Lightening hole, effectively alleviates the weight of positive bus 12, so as to alleviate the weight of power battery.
Negative bus-bar 13 is platy structure, preferably, negative bus-bar 13 is solid platy structure, and anode converges
Row 13 is the platy structure for not having through hole, without groove；One end of the anode of the connection battery core 11 of negative bus-bar 13 is a side
Shape plane, can easily be distinguished from the appearance with positive bus 12.The anode of negative bus-bar 13 and battery core 11 can be with
Be attached by the way of directly welding, avoid using connector connection and caused by power battery it is overweight the problem of, together
When also greatly reduce contact resistance.The material of negative bus-bar 13 is metal, in order to ensure negative bus-bar 13 have compared with
Good electric conductivity, negative bus-bar 13 is aluminium sheet.In order to efficiently connect the anode of negative bus-bar 13 and each battery core 11,
Can be by the way of electromagnetic pulse welding, the unified company completed between negative bus-bar 13 and the anode of each battery core 11
Connect.Welded in order to facilitate using electromagnetic pulse, and also to reduce the weight of power battery, the thickness of negative bus-bar 13 is big
In equal to 0.4 millimeter, less than or equal to 3.0 millimeters.
In the utility model embodiment, positive bus 12 and the cathode of battery core 11 are connected by wire 14, when excessive
Electric current flow through the wire 14, can fuse the wire 14, so that the circuit where disconnecting power battery, and then be power
Battery provides overcurrent protection function.Negative bus-bar 13 is platy structure, can be very directly perceived from the appearance with positive bus 12
Differentiation, that is to say, that the positive and negative anodes of power battery can be easily discriminated；Negative bus-bar 13 and the anode of battery core 11 are direct
Connection, avoid using connector connection and caused by power battery it is overweight the problem of.
On the basis of above-mentioned utility model embodiment, in the utility model embodiment, wire 14 is aluminium wire.
It should be noted that the striking point of aluminium wire is relatively low, and price is relatively cheap, and electric conductivity is also relatively good, so adopting
By the use of aluminium wire as the connector between positive bus 12 and battery core 11, good overcurrent protection work(can be provided for power battery
Energy.Preferably, the diameter of aluminium wire is more than or equal to 0.2286 millimeter, less than or equal to 0.3810 millimeter；The length of aluminium wire is more than or equal to 7
Millimeter, less than or equal to 12 millimeters.
On the basis of above-mentioned utility model embodiment, in the utility model embodiment, battery core 11 is cylindrical.
It should be noted that it is square that the shape of the battery core 11 of power battery, which can be cylindric or cross section,
Column.In order to facilitate the connection between battery core 11 and positive bus 12 and negative bus-bar 13, battery core 11 is arranged to round
Column structure.
On the basis of above-mentioned each utility model embodiment, in the utility model embodiment, the edge of negative bus-bar 13
Anode projection 131 is provided with, anode projection 131 is generally aligned in the same plane with negative bus-bar 13.
What should be illustrated says, negative bus-bar 13 is specifically used for the anode as power battery, negative bus-bar 13 and electricity
Part electronic component in electrical automobile is electrically connected, and is connected for convenience, can be by the electronics being connected with negative bus-bar 13 member
Device is all connected in anode projection 131, the anode tie point using anode projection 131 as power battery.Anode projection 131 with
Negative bus-bar 13 is generally aligned in the same plane, and can be integrally formed, and anode projection 131 can be a certain portion of negative bus-bar 13
Position is formed along the direction extension away from negative bus-bar 13.
On the basis of above-mentioned each utility model embodiment, in the utility model embodiment, the edge of positive bus 12
Cathode projection 122 is provided with, cathode projection 122 is generally aligned in the same plane with positive bus 12.
It should be noted that positive bus 12 is specifically used for the cathode as power battery, positive bus 12 and electricity
Part electronic component in electrical automobile is electrically connected, and is connected for convenience, can be by the electronics being connected with positive bus 12 member
Device is all connected in cathode projection 122, the cathode tie point using cathode projection 122 as power battery.Cathode projection 122 with
Positive bus 12 is generally aligned in the same plane, and can be integrally formed, and cathode projection 122 can be a certain portion of positive bus 12
Position is formed along the direction extension away from positive bus 12.
Another aspect according to the utility model, there is provided a kind of electric automobile, including power battery as above.
In the utility model embodiment, positive bus 12 and the cathode of battery core 11 are connected by wire 14, when excessive
Electric current flow through the wire 14, can fuse the wire 14, so that the circuit where disconnecting power battery, and then be power
Battery provides overcurrent protection function.Negative bus-bar 13 is platy structure, can be very directly perceived from the appearance with positive bus 12
Differentiation, that is to say, that the positive and negative anodes of power battery can be easily discriminated；Negative bus-bar 13 and the anode of battery core 11 are direct
Connection, avoid using connector connection and caused by power battery it is overweight the problem of.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or be electrically connected or can communicate with one another；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the interaction relationship of connection inside two elements or two elements.For those of ordinary skill in the art
For, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
Although having been described for the preferred embodiment of the utility model embodiment, those skilled in the art once learn
Basic creative concept, then can make these embodiments other change and modification.So appended claims are intended to solve
It is interpreted as including preferred embodiment and falls into all change and modification of the utility model embodiment scope.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those key elements are included, but also including other elements that are not explicitly listed, or further include as this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical element in the process including the key element, method, article or terminal device.
Claims (9)
- A kind of 1. power battery, it is characterised in that including：Positive bus (12), negative bus-bar (13) with it is multiple mutually it is equal Capable battery core (11)；Wherein, multiple connecting holes (121) are provided with the positive bus (12), the cathode of each battery core (11) passes through Wire (14) is connected with the connecting hole (121), to realize that the battery core (11) is connected with the positive bus (12)；The negative bus-bar (13) is platy structure, and is fixedly connected with the anode of each battery core (11).
- 2. power battery according to claim 1, it is characterised in that the thickness of the negative bus-bar (13) is more than or equal to 0.4 millimeter, less than or equal to 3.0 millimeters.
- 3. power battery according to claim 1, it is characterised in that the wire (14) is aluminium wire.
- 4. power battery according to claim 3, it is characterised in that the diameter of the aluminium wire is more than or equal to 0.2286 milli Rice, less than or equal to 0.3810 millimeter；The length of the aluminium wire is more than or equal to 7 millimeters, less than or equal to 12 millimeters.
- 5. power battery according to claim 1, it is characterised in that the battery core (11) is cylindrical.
- 6. power battery according to claim 1, it is characterised in that the edge of the negative bus-bar (13) is provided with negative Pole projection (131), the anode projection (131) are generally aligned in the same plane with the negative bus-bar (13).
- 7. power battery according to claim 1, it is characterised in that the edge of the positive bus (12) is provided with just Pole projection (122), the cathode projection (122) are generally aligned in the same plane with the positive bus (12).
- 8. power battery according to claim 1, it is characterised in that the negative bus-bar (13) is solid tabular knot Structure.
- A kind of 9. electric automobile, it is characterised in that including：Such as claim 1-8 any one of them power batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260498.0U CN207250628U (en) | 2017-09-28 | 2017-09-28 | A kind of power battery and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260498.0U CN207250628U (en) | 2017-09-28 | 2017-09-28 | A kind of power battery and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250628U true CN207250628U (en) | 2018-04-17 |
Family
ID=61889501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260498.0U Active CN207250628U (en) | 2017-09-28 | 2017-09-28 | A kind of power battery and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250628U (en) |
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2017
- 2017-09-28 CN CN201721260498.0U patent/CN207250628U/en active Active
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