CN108470962B - Hybrid battery pack and hybrid electric vehicle - Google Patents
Hybrid battery pack and hybrid electric vehicle Download PDFInfo
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- CN108470962B CN108470962B CN201810472595.9A CN201810472595A CN108470962B CN 108470962 B CN108470962 B CN 108470962B CN 201810472595 A CN201810472595 A CN 201810472595A CN 108470962 B CN108470962 B CN 108470962B
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- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000012423 maintenance Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 19
- 238000010030 laminating Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the invention relates to the technical field of new energy batteries, in particular to a hybrid power battery pack and a hybrid power electric vehicle. This hybrid battery package includes first casing, the second casing, the forced air cooling subassembly, battery module, maintenance subassembly, battery management device, power cutting device and sealing member, the second casing outside is provided with a plurality of fixed parts that are used for with electric motor car fixed connection, the second casing is including having open-ended thing chamber of putting, battery module sets up in putting the thing chamber, battery management device, power cutting device and maintenance subassembly set up in battery module, forced air cooling subassembly laminating is outside in the second casing, forced air cooling subassembly communicates with the battery module that sets up in putting the thing intracavity, sealing member sets up in the opening part, first casing lock is kept away from one side of second casing in the sealing member. The hybrid power battery pack can improve the structural matching degree of the hybrid power battery pack and the hybrid power electric vehicle on the premise of ensuring the reliable operation of the hybrid power battery pack.
Description
Technical Field
The embodiment of the invention relates to the technical field of new energy batteries, in particular to a hybrid power battery pack and a hybrid power electric vehicle.
Background
New energy electric vehicles gradually enter the life line of people, and power battery packs play an important role in normal and safe operation of the new energy electric vehicles. However, the existing power battery pack is difficult to consider the use reliability of the power battery pack and the structural matching of the power battery pack with the new energy electric vehicle.
Disclosure of Invention
In view of the above, the present invention provides a hybrid battery pack and a hybrid electric vehicle, which can improve the structural matching degree of the hybrid battery pack and the hybrid electric vehicle on the premise of ensuring the reliable operation of the hybrid battery pack.
To achieve the above object, an embodiment of the present invention provides a hybrid battery pack including: the device comprises a first shell, a second shell, an air cooling assembly, a battery module, a maintenance assembly, a battery management device, a power supply cutting device and a sealing piece;
a plurality of fixing parts used for being fixedly connected with the electric vehicle are arranged outside the second shell;
the second shell comprises a storage cavity provided with an opening, the battery module is arranged in the storage cavity, and the battery module is fixedly connected with the inner bottom wall of the second shell;
the battery management device is arranged on the battery module and is in communication connection with the battery module; the power supply cutting device is arranged at a position, far away from the battery module, of the battery management device, and is electrically connected with the battery module; the maintenance assembly is arranged at a position, away from the battery management device and the power supply cut-off device, of the battery module, and the maintenance switch is electrically connected with the battery module;
the air cooling assembly is arranged outside the second shell and is attached to the second shell, and the air cooling assembly is communicated with the battery module arranged in the storage cavity;
the sealing element is arranged at the opening, the first shell is provided with a through hole, the first shell is buckled on one side, far away from the second shell, of the sealing element, and one end of the maintenance assembly penetrates through the through hole and is located outside the first shell.
Optionally, the fixing part is a lifting lug; two lifting lugs are arranged on the first peripheral side and the second peripheral side of the second shell, wherein the first peripheral side and the second peripheral side are opposite; the lifting lug comprises a fitting part and a connecting part, and the fitting part and the connecting part are fixedly connected and integrally formed;
each attaching part is fixedly connected to the first peripheral side or the second peripheral side;
the connecting part comprises a first bearing platform and a second bearing platform;
the first bearing platform is provided with a first fixing hole, the second bearing platform is provided with a second fixing hole, the first fixing hole is opposite to the second fixing hole, and the inner diameter of the first fixing hole is matched with the inner diameter of the second fixing hole; and a bearing piece with a cavity is fixedly connected between the first fixing hole and the second fixing hole, and the inner diameter of the bearing piece is matched with the inner diameter of the first fixing hole.
Optionally, an air inlet through hole is formed in the third peripheral side of the second shell, and an air outlet through hole is formed in the fourth peripheral side of the second shell; wherein the third peripheral side is opposite the fourth peripheral side; the air cooling assembly comprises a fan, an air inlet piece and an air outlet piece;
the air inlet piece and the air outlet piece are both hollow cavities;
one end of the air inlet piece is communicated with the fan, and one end of the air inlet piece, which is far away from the fan, is arranged in the air inlet through hole and is communicated with the battery module;
one end of the air outlet piece is arranged in the air outlet through hole and is communicated with the battery module, and one end of the air outlet piece, which is far away from the air outlet through hole, is communicated with the outside of the hybrid electric vehicle.
Optionally, the battery module comprises a box body and a soft package battery; the box body is of a cuboid structure;
the soft package battery is arranged in the box body, and the box body is fixed on the inner bottom wall of the second shell;
the first side wall of the box body is provided with an air inlet part, and the second side wall of the box body is provided with an air outlet part; wherein the first sidewall and the second sidewall are opposite;
one end of the air inlet part penetrates through the air inlet through hole and is positioned outside the second shell, and one end of the air inlet piece, which is far away from the fan, is in buckling connection with the air inlet part;
one end of the air outlet part penetrates through the air outlet through hole and is positioned outside the second shell, and one end of the air outlet part is in buckling connection with the air outlet part.
Optionally, the battery management device is of a rectangular plate-shaped structure;
the battery management device is fixed on the third side wall of the box body; the battery management device is in communication connection with the soft package battery.
Optionally, the power supply cut-off device is disposed at a position of the battery management device away from the third sidewall, and the power supply cut-off device is electrically connected with the soft package battery.
Optionally, the maintenance component is fixed on the top wall of the box body, and the maintenance component is electrically connected with the soft package battery.
Optionally, a communication interface is further provided at a position of the fourth peripheral side far from the air outlet through hole;
the communication interface is in communication connection with the battery management device.
Optionally, a high-voltage interface is further arranged at the position, far away from the air outlet through hole, of the fourth periphery;
the high-voltage interface is in communication connection with the power supply cut-off device.
The embodiment of the invention also provides a hybrid electric vehicle, which comprises the hybrid battery pack; the electric vehicle is provided with an air outlet and a fan fixing groove; a plurality of positioning parts and a plurality of connecting pieces are arranged between the air outlet and the fan fixing groove; wherein the number of the positioning parts corresponds to the number of the fixing parts, and the number of the connecting pieces corresponds to the number of the positioning parts;
the air cooling assembly comprises a fan, an air inlet piece and an air outlet piece;
the fan is fixed in the fan fixing groove;
one end of the air inlet piece is communicated with the fan, and one end of the air inlet piece, which is far away from the fan, is arranged on the second shell and is communicated with the battery module;
one end of the air outlet piece is arranged on the second shell and is communicated with the battery module, and one end of the air outlet piece, which is far away from the second shell, is communicated with the air outlet;
each fixing part is arranged on each positioning part, and one end of each connecting piece sequentially passes through each fixing part and each positioning part so as to realize the fixed connection between the hybrid battery pack and the hybrid electric vehicle.
According to the hybrid battery pack and the hybrid electric vehicle provided by the embodiment of the invention, the air cooling system is adopted to radiate the battery modules in the first shell and the second shell, so that the use reliability of the hybrid battery pack can be improved, and the air cooling system is attached to the second shell, so that the space occupation of the whole hybrid battery pack is reduced. The battery management device, the power cut-off device and the battery module are arranged in a centralized mode, and the maintenance assembly penetrates through the first shell, so that the space occupation of the opposite object cavity is reduced, the sizes of the first shell and the second shell are further reduced, and the fixed part arranged on the second shell can be fixedly connected with the electric vehicle, so that the structural matching degree is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a hybrid battery pack according to an embodiment of the present invention.
Fig. 2 is an exploded view of a hybrid battery pack according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a fixing portion according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a battery module according to an embodiment of the present invention.
Fig. 5 is a schematic view illustrating a first view of a battery module according to an embodiment of the invention.
Icon: 100-hybrid battery pack; 1-a first housing; 11-connecting holes; 2-a second housing; 21-a first peripheral side; 22-a second circumferential side; 23-third week side; 231-an air inlet through hole; 24-fourth peripheral side; 241-an air outlet through hole; 242-a communication interface; 243-high voltage interface; 25-a fixing part; 251-attaching part; 252-connection; 253—a carrier; 3-air cooling assembly; 31-a fan; 32-an air inlet piece; 33-an air outlet piece; 4-a battery module; 41-a box body; 411-a first sidewall; 4111-an air inlet part; 412-a second sidewall; 4121-air outlet part; 413-a third sidewall; 414-top wall; 42-soft package battery; 5-servicing the assembly; 6-battery management means; 7-a power cut-off device; 8-seals.
Detailed Description
New energy electric vehicles gradually enter the life line of people, and power battery packs play an important role in normal and safe operation of the new energy electric vehicles.
The inventor finds that the existing power battery pack is difficult to consider the use reliability of the power battery pack and the structural match of the power battery pack with the new energy electric vehicle. The reason for this is mainly due to the self-structure of the battery pack. For example, some thermal management devices disposed around the power battery pack are large in size and are difficult to match with the battery placement space reserved for new energy electric vehicles. For example, the power battery pack has more internal components, and most of the internal components of the existing power battery pack are unreasonable, so that the whole power battery pack occupies a larger space and is difficult to be placed in the new energy electric vehicle.
The above prior art solutions have all the drawbacks that the inventors have obtained after practice and careful study, and thus the discovery process of the above problems and the solutions presented below by the embodiments of the present invention for the above problems should be all contributions to the present invention by the inventors during the present invention.
Based on the above researches, the embodiment of the invention provides a hybrid power battery pack and a hybrid power electric vehicle, and the structural matching degree of the hybrid power battery pack and the hybrid power electric vehicle can be improved on the premise of ensuring the reliable operation of the hybrid power battery pack.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 shows a schematic structural diagram of a hybrid battery pack 100 according to an embodiment of the present invention, and it can be seen that the hybrid battery pack 100 includes a first housing 1, a second housing 2, an air cooling assembly 3, a battery module, a maintenance assembly 5, a battery management device, a power cut-off device, and a sealing member.
Wherein, the outside of second casing 2 is provided with a plurality of fixed parts 25 that are used for with electric motor car fixed connection, and second casing 2 is including being provided with open-ended and putting the thing chamber, and the sealing member sets up in the opening part, and battery module, battery management device and power cutting device set up in this and put the thing intracavity. The air cooling assembly 3 is arranged outside the second shell 2 and is attached to the second shell 2, and the air cooling assembly 3 is communicated with the battery module arranged in the storage cavity. The sealing member sets up in the opening part, and first casing 1 is provided with the connecting hole, and first casing lock is in one side that the second casing was kept away from to the sealing member, and the one end of maintenance subassembly 5 passes the connecting hole and is located the outside of first casing, and the other end of maintenance subassembly 5 is located first casing 1 and with battery module fixed connection, and further, maintenance subassembly 5 and battery module electric connection.
It can be understood that the battery module, the battery management device and the power cut-off device which are positioned in the storage cavity can realize the space occupation minimization through a certain connection relationship, thereby reducing the volumes of the first shell 1 and the second shell 2. The air cooling assembly 3 is attached to the second shell 2, so that the space occupation of the whole battery pack is reduced, the fixing part 5 can fix the whole battery pack in the electric vehicle, and when the battery pack is fixed in the electric vehicle, the air cooling assembly 3 can be fixed in a corresponding area in the electric vehicle, and the structural matching degree of the whole battery pack and the electric vehicle is improved. In order to facilitate a more detailed description of the hybrid battery pack, an explosion schematic of the hybrid battery pack is provided in an embodiment of the present invention, please refer to fig. 2.
As can be seen from fig. 2, in the present embodiment, the fixing portion 25 is a lifting lug, and the first peripheral side 21 and the second peripheral side 22 of the second housing 2 are each provided with two lifting lugs 25, wherein the first peripheral side 21 and the second peripheral side 22 are opposite. Referring to fig. 3 in combination, a schematic structural diagram of a lifting lug according to an embodiment of the invention is provided, and as can be seen from fig. 3, the lifting lug 25 includes a fitting portion 251 and a connecting portion 252, the fitting portion 251 and the connecting portion 252 are fixedly connected and integrally formed, and each fitting portion 251 is fixedly connected to the first peripheral side 21 or the second peripheral side 22. The bonding portions 251 are plate-shaped, and thus the contact area between the bonding portions 251 and the first peripheral side 21 or the second peripheral side 22 can be increased, the pressure can be reduced, and further, the bonding portions 251 and the first peripheral side 21 or the second peripheral side 22 can be fixedly connected by welding.
Further, please continue to refer to fig. 3, the connection portion 252 includes a first bearing platform and a second bearing platform, the first bearing platform is provided with a first fixing hole, the second bearing platform is provided with a second fixing hole, the first fixing hole is opposite to the second fixing hole, the first fixing hole is matched with the inner diameter of the second fixing hole, a bearing piece with a cavity inside is fixedly connected between the first fixing hole and the second fixing hole, and the inner diameter of the bearing piece is matched with the inner diameters of the first fixing hole and the second fixing hole. Wherein, the second fixing hole corresponds with the location portion in the electric motor car, in this embodiment, can realize the fixed connection of first fixing hole, second fixing hole and location portion through the nut, for example, the one end of nut passes first fixing hole, second fixing hole in proper order and is fixed in the location portion. So set up, the second loading platform can fully contact with the location portion, guarantees the structural stability of battery package and electric motor car, and the removal and the rotation of second casing can be avoided to two lugs that first side and second side set up respectively. The two bearing platforms and the bearing piece are adopted, so that the pressure and stress generated when the connecting piece passes through the lifting lug are reduced, the lifting lug is prevented from being damaged in the assembly process, and the damage to the lifting lug caused by shaking of the battery pack in the running process of the electric vehicle is also avoided.
Further, referring to fig. 2, the third peripheral side 23 of the second housing 2 is provided with an air inlet 231, and the fourth peripheral side 24 of the second housing 2 is provided with an air outlet 241, wherein the third peripheral side 23 is opposite to the fourth peripheral side 24, and the air cooling assembly includes a fan 31, an air inlet member 32 and an air outlet member 33. Wherein, air inlet piece 32 and air-out piece 33 are inside to be the cavity, and the one end and the fan 31 intercommunication of air inlet piece 32, the one end that air inlet piece 32 kept away from fan 31 set up in air inlet through-hole 231 and with battery module 4 intercommunication, and the one end of air-out piece 33 sets up in air-out through-hole 241, and the one end that air-out piece 24 kept away from air-out through-hole 241 is connected with the outside of electric motor car. Wherein, temperature adjustable regulation wind gets into air inlet piece 32 from fan 31, gets into battery module 4 through air inlet piece 32, realizes the thermal management to battery module 4, flows out from air outlet piece 33 through the forced air cooling pipeline that inside set up, and is discharged outside the vehicle. According to the explosion diagram, the air inlet piece 32 and the air outlet piece 33 are respectively attached to the third peripheral side 23 and the fourth peripheral side 24, and the air outlet piece 33 is in a strip shape, so that the combined structure of the air cooling component and the second shell body occupies a greatly reduced space, and the combined structure can be well matched with the electric vehicle under the condition that the space of the electric vehicle for placing the battery pack is limited, for example, the space occupied by the combined structure is smaller than the space of the electric vehicle for placing the battery pack, and corresponding fixing equipment such as the position of the positioning part is adjusted, and the matching of the positioning part and the lifting lug 25 and the matching of the air outlet piece 33 and the air outlet of the electric vehicle are considered.
Fig. 4 shows a schematic structural diagram of a battery module according to an embodiment of the present invention, where the battery module includes a case and a soft package battery 42, the case has a rectangular structure, the soft package battery 42 is disposed in the case, and the case is fixed to an inner bottom wall of the second case.
With continued reference to fig. 4, the first side wall 411 of the box body is provided with an air inlet portion 4111, one end of the air inlet portion 4111 passes through the air inlet through hole and is located outside the second housing, and one end of the air inlet piece, which is far away from the fan, is in snap connection with the air inlet portion. By the arrangement, the shared area among the battery module, the second shell and the air inlet piece can be reduced, and the space occupation of the whole battery pack is further reduced.
Further, the battery management device 6 is fixed on the third side wall 413 of the box, the battery management device 6 is in communication connection with the soft package battery 42, wherein, the battery management device 6 is of a rectangular plate-shaped structure, the structure is attached to the third side wall 413, occupation of the inner space of the second shell can be reduced, and similarly, the power supply cutting device 7 is attached to the battery management device 6, the power supply cutting device 7 is electrically connected with the soft package battery 42, and the battery management device 6 and the power supply cutting device 7 are relatively close in position, and corresponding connection interfaces can be also arranged in the second shell in a centralized manner.
With continued reference to fig. 4, the fourth peripheral side 24 is provided with a communication interface 243 and a high voltage interface 244 at a position far from the air outlet through hole 241, wherein the communication interface 243 is in communication connection with the battery management device 6, the high voltage interface 244 is electrically connected with the power cut-off device 7, and the communication interface 243 is relatively close to the high voltage interface 244, so that the complexity of arranging the connecting wires caused by too far separation is avoided. With continued reference to fig. 4, the maintenance assembly 5 is fixed to the top wall 414 of the case, and the maintenance assembly 5 is electrically connected to the soft battery 42. The maintenance assembly 5, by passing through the first housing and being located outside the first housing, reduces the "shared area" itself with the first housing and battery module while ensuring electrical connection with the pouch battery 42.
Fig. 5 is a schematic view of a first view of a battery module according to an embodiment of the invention, and it can be seen that the second side wall 412 of the case is provided with an air outlet 4121, and the connection manner among the air outlet 4121, the second housing and the air outlet is similar to that of the air inlet 4111 in fig. 4, so that no further description will be given here.
Referring to fig. 4 and 5 in combination, the size of the air inlet portion 4111 is slightly larger than that of the air outlet portion 4121, so that the air inlet portion 4111 with a relatively smaller size has a throttling effect, and when cooling is performed, the temperature of the air entering the battery module through the air inlet portion 4111 is further reduced, thereby improving the thermal management effect.
On the basis, the embodiment of the invention also provides a hybrid electric vehicle, which comprises the hybrid battery pack. The electric vehicle is provided with an air outlet and a fan fixed slot, a plurality of positioning parts and a plurality of connecting pieces are arranged between the air outlet and the fan fixed slot, wherein the number of the positioning parts corresponds to the number of the fixed parts, and the number of the connecting pieces corresponds to the number of the positioning parts.
The fan is fixed in the fan fixed slot, and the one end of air-out spare sets up in the second casing and communicates with the battery module, and the one end and the air exit intercommunication that the second casing was kept away from to the air-out spare, and each fixed part sets up in each location portion, and each fixed part and each location portion are passed in proper order to the one end of each connecting piece to realize the fixed connection of hybrid battery package and hybrid electric vehicle.
It can be understood that the hybrid power battery pack can be well matched with the hybrid power electric vehicle, and the hybrid power battery pack has good thermal management effect and reliable use.
In summary, the hybrid power battery pack and the hybrid power electric vehicle provided by the embodiment of the invention can improve the structural matching degree of the hybrid power battery pack and the hybrid power electric vehicle on the premise of ensuring the reliable operation of the hybrid power battery pack.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hybrid battery pack, comprising: the device comprises a first shell, a second shell, an air cooling assembly, a battery module, a maintenance assembly, a battery management device, a power supply cutting device and a sealing piece;
a plurality of fixing parts used for being fixedly connected with the electric vehicle are arranged outside the second shell;
the second shell comprises a storage cavity provided with an opening, the battery module is arranged in the storage cavity, and the battery module is fixedly connected with the inner bottom wall of the second shell;
the battery management device is arranged on the battery module and is in communication connection with the battery module; the power supply cutting device is arranged at a position, far away from the battery module, of the battery management device, and is electrically connected with the battery module; the maintenance assembly is arranged at a position, away from the battery management device and the power supply cutting device, of the battery module and is electrically connected with the battery module;
the air cooling assembly is arranged outside the second shell and is attached to the second shell, and the air cooling assembly is communicated with the battery module arranged in the storage cavity;
the sealing element is arranged at the opening, the first shell is provided with a connecting hole, the first shell is buckled on one side, far away from the second shell, of the sealing element, and one end of the maintenance assembly penetrates through the connecting hole and is located outside the first shell.
2. The hybrid battery pack according to claim 1, wherein the fixing portion is a lifting lug; two lifting lugs are arranged on the first peripheral side and the second peripheral side of the second shell, wherein the first peripheral side and the second peripheral side are opposite; the lifting lug comprises a fitting part and a connecting part, and the fitting part and the connecting part are fixedly connected and integrally formed;
each attaching part is fixedly connected to the first peripheral side or the second peripheral side;
the connecting part comprises a first bearing platform and a second bearing platform;
the first bearing platform is provided with a first fixing hole, the second bearing platform is provided with a second fixing hole, the first fixing hole is opposite to the second fixing hole, and the inner diameter of the first fixing hole is matched with the inner diameter of the second fixing hole; and a bearing piece with a cavity is fixedly connected between the first fixing hole and the second fixing hole, and the inner diameter of the bearing piece is matched with the inner diameter of the first fixing hole.
3. The hybrid battery pack according to claim 1, wherein an air inlet through hole is formed in a third peripheral side of the second housing, and an air outlet through hole is formed in a fourth peripheral side of the second housing; wherein the third peripheral side is opposite the fourth peripheral side; the air cooling assembly comprises a fan, an air inlet piece and an air outlet piece;
the air inlet piece and the air outlet piece are both hollow cavities;
one end of the air inlet piece is communicated with the fan, and one end of the air inlet piece, which is far away from the fan, is arranged in the air inlet through hole and is communicated with the battery module;
one end of the air outlet piece is arranged in the air outlet through hole and is communicated with the battery module, and one end of the air outlet piece, which is far away from the air outlet through hole, is communicated with the outside of the hybrid electric vehicle.
4. The hybrid battery pack according to claim 3, wherein the battery module includes a case and a pouch battery; the box body is of a cuboid structure;
the soft package battery is arranged in the box body, and the box body is fixed on the inner bottom wall of the second shell;
the first side wall of the box body is provided with an air inlet part, and the second side wall of the box body is provided with an air outlet part; wherein the first sidewall and the second sidewall are opposite;
one end of the air inlet part penetrates through the air inlet through hole and is positioned outside the second shell, and one end of the air inlet piece, which is far away from the fan, is in buckling connection with the air inlet part;
one end of the air outlet part penetrates through the air outlet through hole and is positioned outside the second shell, and one end of the air outlet part is in buckling connection with the air outlet part.
5. The hybrid battery pack according to claim 4, wherein the battery management device is of a rectangular plate-like structure;
the battery management device is fixed on the third side wall of the box body; the battery management device is in communication connection with the soft package battery.
6. The hybrid battery pack according to claim 5, wherein the power cut-off device is disposed at a position of the battery management device away from the third side wall, and the power cut-off device is electrically connected to the pouch battery.
7. The hybrid battery pack of claim 6, wherein the repair assembly is secured to a top wall of the housing, the repair assembly being electrically connected to the pouch battery.
8. The hybrid battery pack according to claim 3, wherein the fourth peripheral side is further provided with a communication interface at a position away from the air outlet through hole;
the communication interface is in communication connection with the battery management device.
9. The hybrid battery pack according to claim 4, wherein the fourth peripheral side is further provided with a high-voltage interface at a position away from the air outlet through hole;
the high-voltage interface is in communication connection with the power supply cut-off device.
10. A hybrid electric vehicle comprising a hybrid battery pack according to any one of claims 1-9; the electric vehicle is provided with an air outlet and a fan fixing groove; a plurality of positioning parts and a plurality of connecting pieces are arranged between the air outlet and the fan fixing groove; wherein the number of the positioning parts corresponds to the number of the fixing parts, and the number of the connecting pieces corresponds to the number of the positioning parts;
the air cooling assembly comprises a fan, an air inlet piece and an air outlet piece;
the fan is fixed in the fan fixing groove;
one end of the air inlet piece is communicated with the fan, and one end of the air inlet piece, which is far away from the fan, is arranged on the second shell and is communicated with the battery module;
one end of the air outlet piece is arranged on the second shell and is communicated with the battery module, and one end of the air outlet piece, which is far away from the second shell, is communicated with the air outlet;
each fixing part is arranged on each positioning part, and one end of each connecting piece sequentially passes through each fixing part and each positioning part so as to realize the fixed connection between the hybrid battery pack and the hybrid electric vehicle.
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