CN114497803A - Power battery thermal management module, power battery and vehicle - Google Patents
Power battery thermal management module, power battery and vehicle Download PDFInfo
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- CN114497803A CN114497803A CN202210007753.XA CN202210007753A CN114497803A CN 114497803 A CN114497803 A CN 114497803A CN 202210007753 A CN202210007753 A CN 202210007753A CN 114497803 A CN114497803 A CN 114497803A
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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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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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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
- H01M10/62—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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
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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
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
Abstract
The invention discloses a power battery heat management module, a power battery and a vehicle, wherein the module comprises: the top liquid cooling plate comprises a plurality of liquid cooling branches and liquid cooling runners, the plurality of liquid cooling branches are arranged above the pole of each electric core in the battery pack, the plurality of liquid cooling branches are communicated through the liquid cooling runners, and the liquid cooling branches are used for cooling the pole of the electric core; liquid-cooled bridge contains the trunk structure and sets up the hot melt structure in the trunk structure, and the trunk structure overlap joint is between per two liquid cooling branches, and trunk structure and two lapped liquid cooling branches intercommunication, hot melt structure are used for when electric core emergence thermal runaway, melt under electric core spun high temperature gas's effect, make to have the trunk structure to form the hole, and the coolant liquid in the liquid cooling branch flows from the hole, cools off taking place thermal runaway's electric core. This module is not bringing under the condition of extra volume, weight and cost burden for the vehicle end, can cool off effectively to the high heat production under the super charge operating mode.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a power battery heat management module, a power battery and a vehicle.
Background
At present, the cooling of the power battery mainly adopts a water-cooling mode in the industry, and the heat of the high-temperature battery is taken away or the low-temperature battery is heated by the heat conduction mode through a liquid cooling water pipe or a liquid cooling plate runner which leads cooling liquid into the bottom of the battery module. With the increasing demand of the market on the charging speed of the power battery of the automobile, super rapid charging becomes the mainstream of the design of the next power battery. The super fast charge generates more heat during the charging process than the conventional fast charge scheme, and the conventional bottom liquid cooling scheme has difficulty in cooling the heat generated by the super charge of the battery.
Most of the current designs for super rapid charging and cooling are to add additional cooling pipes or cooling plates on the side or top of the battery pack to carry away heat. However, the heat of the battery which can be taken away by the scheme is determined by the design of the heat dissipation capacity of the vehicle at the end of the whole vehicle air conditioning system, the current market vehicle is limited by the reasons of volume, weight, power, cost and the like, and the heat dissipation capacity is not enough to support the future super fast charging requirement.
Disclosure of Invention
The embodiment of the application provides a power battery thermal management module, power battery and vehicle, this module is not bringing extra volume for the vehicle end, under the condition of weight and cost burden, can cool off high heat production under the super charge operating mode effectively, be favorable to maintaining whole car power economy and reduce carbon emission, and when power battery is inside to take place the thermal runaway, can spray out the coolant liquid passively and carry out the cooling of putting out a fire fast to the electric core of thermal runaway, thereby reduce loss and danger of thermal runaway, prevent that the thermal diffusion from taking place.
In a first aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a power battery thermal management module includes: the top liquid cooling plate comprises a plurality of liquid cooling branches and liquid cooling runners, the liquid cooling branches are arranged above the polar columns of each electric core in the battery pack, the liquid cooling branches are communicated through the liquid cooling runners, and the liquid cooling branches are used for cooling the polar columns of the electric cores; liquid-cooled bridge, contain the trunk structure and with set up in hot melt structure in the trunk structure, trunk structure overlap joint is between per two liquid cooling branches, trunk structure and overlap joint two liquid cooling branch intercommunications, hot melt structure is used for when electric core takes place the thermal runaway electric core spun high temperature gas's effect melts down, makes the trunk structure forms the hole, coolant liquid in the liquid cooling branch is followed the hole flows out, right the electric core that takes place the thermal runaway cools off.
Preferably, the liquid cooling bridges are lapped between every two liquid cooling branches, and one electric core is arranged between every two adjacent liquid cooling bridges to build the space between the two liquid cooling branches.
Preferably, the liquid cooling bridge is arranged above each battery cell in the battery pack.
Preferably, the liquid cooling bridge is located above the battery cell explosion-proof valve, and the hot melting structure in the liquid cooling bridge is over against the explosion-proof valve. The hot melt structure is located directly over the explosion-proof valve of electric core, works as when the electric core takes place the thermal runaway, the hot melt structure melts under high temperature gas's effect and forms the hole, coolant liquid in the liquid cooling branch road is followed the hole sprays to the explosion-proof valve of electric core.
Preferably, the module further comprises: the heat-conducting plate, the heat-conducting plate sets up between adjacent electric core in the battery package, the heat-conducting plate is used for completely cutting off the coolant liquid and is in circulate between the electric core.
Preferably, the module further comprises: the air blowing fan is positioned on the first side face of the battery pack and used for blowing air into the battery pack so as to cool the battery core; and the exhaust fan is positioned on the second side surface of the battery pack and used for exhausting the gas wind in the battery pack outwards so as to maintain the air pressure balance in the battery pack, wherein the second side surface is positioned on the opposite side of the first side surface.
Preferably, the module further comprises: and the bottom liquid cooling plate is positioned at the bottom of the battery pack and used for cooling the battery pack.
Preferably, the heat-fusible structure includes: an aluminum material, the aluminum material having a thickness of 1.0-0.6 mm.
In a second aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a power cell, comprising: the power battery comprises a battery box body and a battery pack, wherein the battery pack comprises a plurality of battery cores located in the battery box body, the battery cores are arranged along the length direction of the battery box body, each battery core extends along the width direction of the battery box body, and the power battery further comprises the power battery heat management module in any one of the first aspects.
In a third aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a vehicle, comprising: the vehicle body and the power battery thermal management module of the first aspect.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the embodiment of the invention provides a power battery heat management module, a power battery and a vehicle, wherein the module comprises: the top liquid cooling plate comprises a plurality of liquid cooling branches and liquid cooling runners, the plurality of liquid cooling branches are arranged above the pole of each electric core in the battery pack, the plurality of liquid cooling branches are communicated through the liquid cooling runners, and the liquid cooling branches are used for cooling the pole of the electric core; the liquid cooling bridge comprises a main structure and a hot melting structure arranged in the main structure. Because this scheme includes many liquid cooling branches and liquid cooling runner at the top liquid cooling board that the battery package top was placed for the weight of top liquid cooling board is lighter, and the liquid cooling branch arranges in the top of electric core utmost point post, because utmost point post lug connection electric core is inside, consequently can be faster carry out the temperature conduction, reinforcing cooling capacity exposes the part of electric core explosion-proof valve simultaneously, provides the sufficient space for the outbreak of losing control, reduces the diffusion risk of losing control, makes it controllable. From this, this module can be under the condition that brings extra volume, weight and cost burden for the vehicle end not, cool off high heat production under the super charge operating mode effectively, be favorable to maintaining whole car power economy and reduce carbon and discharge, and when power battery is inside to take place the thermal runaway, can melt the hot melt structure on the liquid cold bridge, the cooling of putting out a fire fast to the electric core of thermal runaway is carried out to the coolant liquid that sprays passively, thereby reduce thermal runaway's loss and danger, prevent that the thermal diffusion from taking place.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thermal management module of a power battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a trunk structure and a hot-melt structure disposed in the trunk structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a battery cell according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a battery cell covered with a bottom liquid-cooled plate and a top liquid-cooled plate according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a thermal management module according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a blower fan and an induced draft fan in a battery pack according to an embodiment of the present invention;
FIG. 7 is a schematic view of a cooling process of a blower fan and an induced draft fan according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
At present, the battery pack with enough electric quantity and electric quantity is realized by combining ternary lithium and a lithium iron phosphate material battery core in the market mainstream. The two materials have high chemical activity, and particularly, a ternary lithium battery, which is a mainstream material used by the current new energy automobile, is easy to lose control in an extreme environment or under a short circuit condition, and extremely dangerous conditions such as smoke, fire, explosion and the like happen immediately. Thermal safety protection of power cells is also a necessary and important part of current cell designs. Thermal safety protection is divided into two categories: the battery thermal runaway and the high temperature and heat diffusion after the thermal runaway are prevented, and the fire is rapidly extinguished.
Along with the increase of super fast charge demand of the market for power batteries at present, various fast charge technologies are more and more abundant, the heat production of the batteries in the fast charge process is higher and higher in temperature rise, the highest temperature of the batteries is higher and higher, and the thermal runaway risk is increased. The requirement on the heat dissipation capacity of the heat management module is increased, so the capacity of the cooling module needs to be increased, the current mainstream is that a complete liquid cooling plate or a harmonica tube is placed at the top, the scheme has the structural problem, the scheme of the complete liquid cooling plate is too heavy, the cost is too high, the economical efficiency is poor, and the liquid cooling plate can prevent the air injection of an explosion-proof valve when the battery core is out of control, so that a greater heat diffusion risk is caused. The heat conducting area of the harmonica tube scheme is low, and the space requirement of the harmonica tube bus bar is large, so that the design concept of improving the energy density of the whole battery pack is contradictory. Still adopt combined type liquid cooling structure more on the market, for example bottom + top dual cooling, bottom + side dual cooling etc. take away more heats of fast filling in-process, reduce the safety risk among the charging process.
In view of this, this application embodiment is through providing a power battery thermal management module, power battery and vehicle, this module is not bringing under the condition of extra volume, weight and cost burden to the vehicle end, can cool off high heat production under the super charge operating mode effectively, be favorable to maintaining whole car power economy and reduce carbon emission, and when power battery is inside to take place the thermal runaway, can spray out the coolant liquid passively and carry out the cooling of putting out a fire fast to the electric core of thermal runaway, thereby reduce loss and danger of thermal runaway, prevent that the thermal diffusion from taking place.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
a power battery thermal management module includes: the top liquid cooling plate comprises a plurality of liquid cooling branches and liquid cooling runners, the plurality of liquid cooling branches are arranged above the pole of each electric core in the battery pack, the plurality of liquid cooling branches are communicated through the liquid cooling runners, and the liquid cooling branches are used for cooling the pole of the electric core; liquid-cooled bridge contains the trunk structure and sets up the hot melt structure in the trunk structure, and the trunk structure overlap joint is between per two liquid cooling branches, and trunk structure and two lapped liquid cooling branches intercommunication, hot melt structure are used for when electric core emergence thermal runaway, melt under electric core spun high temperature gas's effect, make to have the trunk structure to form the hole, and the coolant liquid in the liquid cooling branch flows from the hole, cools off taking place thermal runaway's electric core.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
It should be noted that the cooling fluid mentioned in the present application may be various types of fire fighting fluids, such as water, liquid nitrogen, etc.
In a first aspect, specifically, as shown in fig. 1, the power battery thermal management module provided in an embodiment of the present invention includes a top liquid cooling plate, where the top liquid cooling plate includes a plurality of liquid cooling branches 101 and liquid cooling runners 102, the plurality of liquid cooling branches 101 are arranged above a terminal of each electric core in a battery pack, the plurality of liquid cooling branches 101 are communicated with the terminal 102 through the liquid cooling runners, and the liquid cooling branches are used for cooling the terminal of the electric core.
As shown in fig. 2, the liquid-cooled bridge 103 includes a main structure 1031 and a hot-melt structure 1032 disposed in the main structure, where the main structure 1031 is overlapped between every two liquid-cooled branches 101, and the main structure 1031 is communicated with the two overlapped liquid-cooled branches 101, and the hot-melt structure 1032 is configured to melt under the action of high-temperature gas sprayed from the electric core when the electric core is out of thermal runaway, so that the main structure forms a hole, and the coolant in the liquid-cooled branches flows out of the hole to cool the electric core in which the thermal runaway occurs.
In specific embodiment, can include the structure of liquid cold runner and many liquid cooling branches to whole liquid cold plate through laser cutting, wherein, many liquid cooling branches only cover in electric core utmost point post top, and other parts of electric core vacate, and many liquid cooling branches pass through liquid cooling runner intercommunication, realize that the coolant liquid circulates wantonly in many liquid cooling branches.
In addition, due to the effect of the liquid cooling flow channel, cooling liquid in the liquid cooling branches positioned on the two sides of the battery pack can converge in the middle of the battery pack, so that the space above the battery beam is efficiently used, and no additional structural pressure is caused to the whole pack.
Specifically, because electric core in general battery package is the matrix arrangement, two utmost point posts (first utmost point post and second utmost point post) between electric core and the electric core draw close mutually on horizontal, and explosion-proof valve draws close mutually, and vertically go up and have a utmost point post that draws close mutually between electric core and the electric core, the first utmost point post or the second utmost point post of one row of electric core can be covered to the solitary liquid cooling branch road that this application provided, of course, as shown in fig. 1, the first utmost point post or the second utmost point post of two rows of electric cores also can be covered to the solitary liquid cooling branch road.
As shown in fig. 3, for the structural diagram of the battery cell, 201 represents the battery cell, 202 represents the terminal, 203 represents the explosion-proof valve, and because the terminal is directly connected to the inside of the battery cell, heat conduction can be carried out faster, so that the liquid cooling branch covers the battery cell terminal, and a better cooling effect can be realized. Meanwhile, the part of the battery core explosion-proof valve is exposed, enough space is reserved for the out-of-control spraying, and the out-of-control diffusion risk is reduced and is controllable. As shown in fig. 4, a schematic diagram of the liquid-cooling branch above the terminal of the battery cell in the battery pack is shown.
In one embodiment, the heat-fusible structure disposed in the trunk structure may be a structure with various shapes, such as a pipe structure, a circle, a square, and so on. For example, when hot melt structure is square, this hot melt structure can be located the below of liquid cooling bridge, just to electric core, and when the electric core of below took place the thermal runaway, spun high temperature gas can melt hot melt structure for trunk structure forms circular hole, and the coolant liquid in the liquid cooling branch road flows from the hole, cools off taking place the electric core of thermal runaway.
Wherein, the hot melt structure may include: an aluminum material, which may have a thickness of between 1.0-0.6mm, for example: 0.08 mm. Of course, the heat-melting structure may also include wax material, etc., and the heat-melting temperature is 600-700 ℃.
As an optional embodiment, a plurality of liquid cooling bridges are lapped between every two liquid cooling branches, and two liquid cooling branches are built between every two adjacent liquid cooling bridges by one battery cell. This design can be under the prerequisite that does not increase too much weight, and when electric core thermal runaway took place, spun high temperature gas can melt the hot melt structure in the liquid cooling bridge, makes the trunk structure form the hole, and the coolant liquid in the liquid cooling branch road flows from the hole, cools off taking place thermal runaway's electric core.
It should be noted that, it can also be understood that two liquid cooling branches are built by one electric core at an interval between adjacent liquid cooling bridges: the distance between adjacent liquid cooling bridges is an electric core, and the liquid cooling bridges can be positioned right above the electric core and also can be positioned between the electric core and the electric core. Because the high-temperature gas range of the battery core is wider, the battery core can be cooled well no matter whether the liquid cooling bridge is positioned right above the battery core or between the battery core and the battery core.
Preferably, the hot melt structure is located electric core explosion-proof valve directly over, and when electric core took place thermal runaway, the hot melt structure melted the formation hole under high-temperature gas's effect, and the coolant liquid in the liquid cooling branch sprays the explosion-proof valve to electric core from the hole.
As another optional embodiment, a liquid cooling bridge is arranged above each battery cell in the battery pack. The liquid cooling bridge is arranged right above each battery cell, and the hot melting structure of the liquid cooling bridge is opposite to the battery cell explosion-proof valve, so that the cooling effect can be optimized.
Specifically, as shown in fig. 5, a simplified block diagram of a liquid cooling plate at the top of a battery pack is shown, wherein solid lines represent a plurality of liquid cooling branches and liquid cooling channels, and dashed lines represent a liquid cooling bridge.
Further, the module may further include: the heat-conducting plate, this heat-conducting plate setting is between adjacent electric core in the battery package for isolated coolant liquid circulates between the electric core.
Specifically, after taking place the electric core of thermal runaway and being submerged by the coolant liquid, electric core temperature reduces rapidly, because isolated by the conducting strip between the electric core, so the coolant liquid can not flow into other electric cores and make the bigger short circuit accident of car. The heat conducting plate may be a heat conducting metal plate, for example, an aluminum plate.
Further, as shown in fig. 6, the module may further include: the air blowing fan 106 is positioned on the first side surface of the battery pack and used for blowing air into the battery pack so as to cool the battery core; and the exhaust fan 107 is positioned on the second side surface of the battery pack and used for exhausting the air in the battery pack outwards so as to maintain the air pressure balance in the battery pack, wherein the second side surface is positioned on the opposite side of the first side surface. Specifically, the blower fan 106 and the extractor fan 107 may be used to turn on when the power battery is charged.
Particularly, in order to increase the heat dissipation capacity of the whole pack, two strong cooling fans (located in the middle of the longitudinal beam and in the middle of the whole pack, one in the front and at the back) located in the middle can be arranged on the front side and the back side of the battery pack according to the positions of the longitudinal beam in the pack, air is blown inwards on the left side, air is blown outwards on the right side, and therefore the air pressure balance and the forced air cooling effect in the whole pack are maintained. The scheme can additionally improve the cooling capacity of the liquid cooling module by 10-20%. As shown in fig. 7, the schematic diagram is a schematic diagram of a blower fan and an induced draft fan in a process of cooling a battery cell, and the arrow direction is a forced convection direction.
Of course, as an alternative embodiment, the module may only include a blower fan for cooling the battery pack, and the wind acting on the battery pack will be discharged outward by the blower fan.
Further, in order to achieve better cooling effect, as shown in fig. 4, the module may further include: and a bottom liquid cooling plate 104, which is arranged at the bottom of the battery pack and used for cooling the battery pack. It should be noted that the bottom liquid-cooled plate herein may be a monolithic liquid-cooled plate.
The application provides a thermal management module compares some tops on the market and takes the scheme of putting out a fire of arranging water pipe branch road switching, and the mode of the whole punching press of this kind of liquid cooling board occupies littleer in the space, and the weight is lighter, and the internal interface still less, and the weeping risk is lower, simultaneously because its reasonable evenly distributed is directly over electric core explosion-proof valve port, electric core directly melts branch road release coolant liquid after out of control and puts out a fire to the bottom, compares traditional active control type scheme of putting out a fire and has reduced the complexity of module.
The following embodiments are provided to illustrate the scheme provided in the present application:
the working condition I is as follows:
1. the vehicle parks, inserts super charging pile's rifle that charges.
2. And the charging gun is switched on, and after the vehicle sends a super charging request, the power battery starts to enter a charging mode.
3. The top and the cryogenic coolant liquid of bottom liquid cold plate inflow high flow take away the heat in the high temperature battery, and battery package both ends fan starts simultaneously, and the heat is taken away from the other end along with inside high-speed air. The battery temperature is controlled within a reasonable range.
Working conditions are as follows:
1. when a certain electric core in the power battery is out of control due to special reasons, heat flow is sprayed out from the explosion-proof valve.
2. The liquid sprayed out of the battery core melts the hot-melt material on the top cooling plate.
3. The top cooling liquid is sprayed out along with the holes to submerge the battery cells separated in each small bin in the module.
4. After electric core is submerged by the coolant liquid, electric core temperature reduces rapidly, moreover because isolated by heat conduction sheetmetal between electric core, so the coolant liquid can not flow into other electric cores and make the bigger short circuit accident of car.
In addition, the power battery heat management module provided by the embodiment of the invention can replace the traditional liquid cooling heat dissipation mode when the power battery sends a low heat dissipation request, namely only a blower fan and an exhaust fan are used for carrying out air cooling to realize low heat dissipation on the power battery, or the liquid cooling module of the power battery can be dormant under most conditions and naturally cooled, so that the energy consumption of the whole vehicle is saved. It should be noted that the following scenarios may be applicable to the case of low heat dissipation, for example: low speed driving, idle state, etc.
To sum up, the application provides a power battery thermal management module, this module is when taking into account the high heat production refrigerated under the super charge operating mode, also can not bring extra volume, weight and cost burden for the vehicle end, is favorable to maintaining whole car power economy and reduces carbon and discharges. Simultaneously, this module can be when power battery is inside takes place the thermal runaway, and the cooling of putting out a fire fast to the electric core of thermal runaway is sprayed the coolant liquid passively to reduce thermal runaway's loss and danger, prevent that thermal diffusion from taking place.
In a second aspect, based on the same inventive concept, the present embodiment provides a power battery, including: battery box and battery package, battery package include a plurality of electric cores that are located the battery box, and a plurality of electric cores are arranged along the length direction of battery box, and every electric core extends along the width direction of battery box, power battery still includes the power battery thermal management module of any one of the aforementioned first aspect.
The implementation principle and the generated technical effects of the power battery provided by the embodiment of the invention are the same as those of the thermal management module embodiment, and for brief description, no part of the embodiment of the power battery is mentioned, and reference may be made to the corresponding contents in the thermal management module embodiment.
In a third aspect, based on the same inventive concept, the present embodiment provides a vehicle 500, as shown in fig. 8, including: a vehicle body 502 and a thermal management module 501 according to any of the preceding first aspects.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a power battery thermal management module which characterized in that includes:
the top liquid cooling plate comprises a plurality of liquid cooling branches and liquid cooling runners, the plurality of liquid cooling branches are arranged above the pole columns of each electric core in the battery pack, the plurality of liquid cooling branches are communicated through the liquid cooling runners, and the liquid cooling branches are used for cooling the pole columns of the electric cores;
liquid-cooled bridge, contain the trunk structure and with set up in hot melt structure in the trunk structure, trunk structure overlap joint is between per two liquid cooling branches, trunk structure and overlap joint two liquid cooling branch intercommunications, hot melt structure is used for when electric core takes place the thermal runaway electric core spun high temperature gas's effect melts down, makes the trunk structure forms the hole, coolant liquid in the liquid cooling branch is followed the hole flows out, right the electric core that takes place the thermal runaway cools off.
2. The thermal management module of claim 1, wherein a plurality of the liquid cooling bridges are connected in a lap joint manner between every two liquid cooling branches, and adjacent liquid cooling bridges are arranged between two liquid cooling branches at an interval of one cell.
3. The thermal management module of claim 1, wherein the liquid cooling bridge is disposed above each cell in the battery pack.
4. The thermal management module according to claim 1, wherein the hot-melt structure is located directly above the explosion-proof valve of the battery cell, when thermal runaway occurs in the battery cell, the hot-melt structure melts under the action of high-temperature gas to form a hole, and the coolant in the liquid cooling branch is sprayed from the hole to the explosion-proof valve of the battery cell.
5. The thermal management module of claim 1, wherein the module further comprises: the heat-conducting plate, the heat-conducting plate sets up between adjacent electric core in the battery package, the heat-conducting plate is used for completely cutting off the coolant liquid and is in circulate between the electric core.
6. The thermal management module of claim 1, wherein the module further comprises:
the air blowing fan is positioned on the first side surface of the battery pack and used for blowing air into the battery pack so as to cool the battery core;
and the exhaust fan is positioned on the second side surface of the battery pack and used for exhausting the gas wind in the battery pack outwards so as to maintain the air pressure balance in the battery pack, wherein the second side surface is positioned on the opposite side of the first side surface.
7. The thermal management module of claim 1, wherein the module further comprises:
and the bottom liquid cooling plate is positioned at the bottom of the battery pack and used for cooling the battery pack.
8. The thermal management module of claim 1, wherein the heat stake structure comprises: an aluminum material, the aluminum material having a thickness of 1.0-0.6 mm.
9. A power cell, comprising: the power battery comprises a battery box body and a battery pack, wherein the battery pack comprises a plurality of battery cores located in the battery box body, the plurality of battery cores are arranged along the length direction of the battery box body, each battery core extends along the width direction of the battery box body, and the power battery further comprises the power battery thermal management module as claimed in any one of claims 1 to 8.
10. A vehicle, characterized by comprising: the vehicle body and the power battery thermal management module of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976467A (en) * | 2022-05-31 | 2022-08-30 | 东风汽车集团股份有限公司 | Battery structure and new forms of energy vehicle |
| CN116613420A (en) * | 2023-05-23 | 2023-08-18 | 陕西西涵京创热控科技有限公司 | New energy automobile comprehensive energy storage and thermal management system and detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448066A (en) * | 2020-10-29 | 2021-03-05 | 清华大学 | Battery thermal management system and control method thereof |
| CN112531231A (en) * | 2020-12-01 | 2021-03-19 | 清华大学 | Passive safety management battery pack |
| CN113471591A (en) * | 2021-07-26 | 2021-10-01 | 广州小鹏汽车科技有限公司 | Power battery assembly for vehicle and vehicle with power battery assembly |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448066A (en) * | 2020-10-29 | 2021-03-05 | 清华大学 | Battery thermal management system and control method thereof |
| CN112531231A (en) * | 2020-12-01 | 2021-03-19 | 清华大学 | Passive safety management battery pack |
| CN113471591A (en) * | 2021-07-26 | 2021-10-01 | 广州小鹏汽车科技有限公司 | Power battery assembly for vehicle and vehicle with power battery assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976467A (en) * | 2022-05-31 | 2022-08-30 | 东风汽车集团股份有限公司 | Battery structure and new forms of energy vehicle |
| CN116613420A (en) * | 2023-05-23 | 2023-08-18 | 陕西西涵京创热控科技有限公司 | New energy automobile comprehensive energy storage and thermal management system and detection method |
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