CN210167415U - Battery pack thermal management device, battery pack and vehicle - Google Patents
Battery pack thermal management device, battery pack and vehicle Download PDFInfo
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- CN210167415U CN210167415U CN201921399308.2U CN201921399308U CN210167415U CN 210167415 U CN210167415 U CN 210167415U CN 201921399308 U CN201921399308 U CN 201921399308U CN 210167415 U CN210167415 U CN 210167415U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model belongs to the technical field of battery thermal management, especially, relate to a battery package thermal management device, battery package and vehicle, this battery package thermal management device includes at least one circulation unit, import structure and exit structure, the circulation unit includes first heat-conducting plate, second heat-conducting plate and collecting pipe, be provided with first runner in the first heat-conducting plate, be provided with the second runner in the second heat-conducting plate, be provided with the collecting pipe and converge the runner; the outlet of the first flow channel is connected with the inlet of the confluence flow channel; the inlet end of the second heat-conducting plate is connected with the collecting pipe, the outlet end of the second heat-conducting plate is connected with the outlet structure, and the inlet of the second flow channel is connected with the outlet of the collecting flow channel. The battery pack thermal management device realizes cooling and heating of the battery pack through the same structure, and has the advantages of simple structure, small occupied space, low cost, light weight and the like.
Description
Technical Field
The utility model belongs to the technical field of the battery thermal management, especially, relate to a battery package thermal management device, battery package and vehicle.
Background
Since batteries generate a large amount of heat during operation, a cooling device is generally mounted in a battery pack. In addition, the battery pack is generally required to be equipped with a heating device under low temperature conditions, limited by the low temperature charging technique of the battery. In order to allow the battery system to operate efficiently in a safe and appropriate environment, a cooling and heating apparatus of the battery system becomes an important part of the entire battery pack thermal management technology.
The cooling method of the battery pack includes air cooling, liquid cooling, direct cooling and the like, and the heating method of the battery pack includes a heating film, a PTC heating sheet, liquid heating and the like. In the existing battery pack thermal management technology, the heating and cooling manners are usually selected and combined, in other words, the heating and cooling are divided into two different devices to be arranged in the battery pack.
For example, in the existing heat management structure, liquid cooling is selected for the cooling mode, and the heating mode is selected for the liquid cooling plate and is pasted with the heating film to heat the battery module. The disadvantage of this thermal management structure is that two different control management systems need to be designed and carried, which increases the difficulty and cost of thermal management. The two different system configurations take up more space in the battery pack and increase the weight of the battery pack, both of which can negatively impact the energy density and cost of the battery pack. Also, heating and cooling may interfere with each other, affecting the efficiency of thermal management.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the battery pack heat management device comprises a battery pack, a battery pack and a vehicle, wherein the battery pack comprises a battery pack body and a battery pack cover, and the battery pack body is provided with a heat pipe and a heat pipe.
In order to solve the technical problem, on the one hand, the embodiment of the utility model provides a battery pack heat management device, including at least one circulation unit, be used for to the circulation unit provide the inlet structure of refrigerant and be used for leading out the refrigerant the outlet structure of circulation unit, the circulation unit includes first heat-conducting plate, second heat-conducting plate and collecting pipe, be provided with first runner in the first heat-conducting plate, be provided with the second runner in the second heat-conducting plate, be provided with the collecting pipe;
the inlet end of the first heat-conducting plate is connected with the inlet structure, the outlet end of the first heat-conducting plate is connected with the collecting pipe, and the outlet of the first flow channel is connected with the inlet of the collecting flow channel; the inlet end of the second heat-conducting plate is connected with the collecting pipe, the outlet end of the second heat-conducting plate is connected with the outlet structure, the inlet of the second flow channel is connected with the outlet of the collecting flow channel, and the first flow channel, the collecting flow channel and the second flow channel are sequentially communicated to form a unit circulating flow channel.
Optionally, the circulation unit is provided with a plurality of circulation channels, the unit circulation channels of the circulation unit are equal in length, the circulation lengths from the inlet of the inlet structure to the inlets of the first heat-conducting plates are equal, and the circulation lengths from the outlet of the outlet structure to the outlets of the second heat-conducting plates are equal.
Optionally, the first heat conducting plate is flat, a plurality of first isolation ribs extending in the thickness direction of the first heat conducting plate are arranged in the first heat conducting plate, and the first flow channel is divided into a plurality of first sub-flow channels arranged side by side in the width direction of the first heat conducting plate by the plurality of first isolation ribs;
the second heat-conducting plate is the platykurtic, be provided with in the second heat-conducting plate along a plurality of second isolation muscle that the second heat-conducting plate thickness direction extends, the second runner is separated into by a plurality of second isolation muscle and follows a plurality of second sub-runners side by side of the width direction of second heat-conducting plate.
Optionally, the inlet structure includes an inlet valve and an inlet distribution pipe, one end of the inlet distribution pipe is connected to the outlet of the inlet valve, and the other end of the inlet distribution pipe is connected to the inlet of the first flow passage;
the outlet structure comprises an outlet valve and an outlet distribution pipeline, one end of the outlet distribution pipeline is connected with the inlet of the outlet valve, and the other end of the outlet distribution pipeline is connected with the outlet of the second flow channel.
Optionally, the circulation unit is provided in plurality;
the collecting pipes of the plurality of circulating units are coaxially connected, and two adjacent collecting pipes are separated by a partition plate.
Optionally, the inlet distribution pipeline comprises an inlet pipe and a plurality of inlet-side branches, an inlet of the inlet pipe is connected with an outlet of the inlet valve, an inlet of the inlet-side branches is connected with an outlet of the inlet pipe, and an outlet of the inlet-side branches is connected with an inlet of the first flow passage; the flow-through lengths of the inlet side legs are equal;
the outlet distribution pipeline comprises an outlet pipe and a plurality of outlet side branches, the outlet of the outlet pipe is connected with the inlet of the outlet valve, the outlet of the outlet side branches is connected with the inlet of the outlet pipe, and the inlet of the outlet side branches is connected with the outlet of the second flow channel; the outlet side branches have equal flow lengths.
Optionally, the inlet side branch comprises an inlet side flow dividing pipe and an inlet side flow guiding pipe, and the outlet of the inlet pipe is connected with the inlet of the first flow passage through the inlet side flow dividing pipe and the inlet side flow guiding pipe;
the outlet side branch comprises an outlet side flow dividing pipe and an outlet side flow guiding pipe, and the inlet of the outlet pipe is connected with the outlet of the second flow passage through the outlet side flow dividing pipe and the inlet side flow guiding pipe.
Optionally, the inlet pipe is connected to a plurality of inlet-side branches through an inlet-side splitter valve, the inlet-side splitter valve has a plurality of outlets, each outlet of the inlet-side splitter valve is connected to one inlet-side splitter pipe, unit circulation flow passages of the circulation units are equal in length, and the circulation lengths from the inlet-side splitter valve to the outlets of the inlet-side splitter pipes are equal;
the outlet pipe is connected with the outlet side branches through an outlet side shunt valve, the outlet side shunt valve is provided with a plurality of inlets, each inlet of the outlet side shunt valve is connected with one outlet side shunt pipe, and the flow lengths from the outlet side shunt valve to the inlets of the outlet side shunt pipes are equal.
Optionally, the inlet-side flow guide pipe is provided with a plurality of outlets, and each outlet of the inlet-side flow guide pipe is connected with one first heat-conducting plate;
the outlet side honeycomb duct is provided with a plurality of entries, and each entry of the outlet side honeycomb duct is connected with one second heat-conducting plate.
Optionally, the battery pack thermal management device further includes an external refrigerant loop, one end of the external refrigerant loop is connected to the inlet of the inlet valve, and the other end of the external refrigerant loop is connected to the outlet of the outlet valve;
and the external refrigerant loop is provided with a compressor for realizing the interconversion of the gaseous refrigerant and the liquid refrigerant.
According to the utility model discloses battery package thermal management device, when the battery package needs the heat dissipation cooling, provides liquid refrigerant to circulation unit through the inlet structure, and the refrigerant loops through the first runner of first heat-conducting plate, the second runner of the runner that converges and second heat-conducting plate of collecting pipe, utilizes the endothermic heat of battery module of liquid refrigerant evaporation gasification to take away the battery package, and the refrigerant is derived by exit structure with gaseous form at last. When the battery pack needs to be heated, the gaseous refrigerant is provided to the circulating unit through the inlet structure, the refrigerant sequentially passes through the first flow channel of the first heat-conducting plate, the converging flow channel of the converging pipe and the second flow channel of the second heat-conducting plate, the battery pack is heated by utilizing the principle of liquefaction and heat release of the gaseous refrigerant, and finally the refrigerant is led out from the outlet structure in a liquid form. The battery pack thermal management device realizes cooling and heating of the battery pack through the same structure, and has the advantages of simple structure, small occupied space, low cost, light weight and the like. The battery pack is beneficial to arranging more battery modules, so that the electric quantity of the battery pack is improved. The mutual interference of heating and cooling of the heat management structure in the traditional technology is avoided, and the heat management efficiency is improved.
On the other hand, the embodiment of the utility model provides a battery pack is still provided, including casing, battery module and foretell battery pack thermal management device, the battery module sets up in the casing;
the battery pack heat management device is arranged in the shell, and the first heat conduction plate and the second heat conduction plate exchange heat with the battery module; in the alternative, the first and second sets of the first,
the battery pack heat management device is arranged outside the shell, the first heat-conducting plate and the second heat-conducting plate exchange heat with the shell, and the shell exchanges heat with the battery module.
In another aspect, an embodiment of the present invention further provides a vehicle, which includes the above battery pack thermal management device or the above battery pack.
Drawings
Fig. 1 is a perspective view of a thermal management device for a battery pack according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at a in FIG. 1;
fig. 3 is a top view of a battery pack thermal management apparatus according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a first heat-conducting plate of a thermal management device for a battery pack according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a second heat-conducting plate of a thermal management device for a battery pack according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a circulation unit; 11. a first heat-conducting plate; 111. a first spacer rib; 112. a first sub-flow path; 12. a second heat-conducting plate; 121. a second spacer rib; 122. a second sub-flow passage; 13. a collector pipe;
2. an inlet arrangement; 21. an inlet valve; 22. an inlet pipe; 23. an inlet side diverter valve; 24. an inlet side manifold; 25. an inlet side draft tube;
3. an outlet arrangement; 31. an outlet valve; 32. an outlet pipe; 33. an outlet-side flow divider valve; 34. an outlet-side shunt tube; 35. an outlet-side draft tube;
4. a separator.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides a battery pack thermal management device, which includes at least one circulation unit 1, an inlet structure 2 for providing a refrigerant to the circulation unit 1, and an outlet structure 3 for guiding out the refrigerant from the circulation unit 1.
The circulating unit 1 comprises a first heat-conducting plate 11, a second heat-conducting plate 12 and a collecting pipe 13, wherein a first flow channel is arranged in the first heat-conducting plate 11, a second flow channel is arranged in the second heat-conducting plate 12, and a collecting flow channel is arranged in the collecting pipe 13.
The inlet end of the first heat-conducting plate 11 is connected with the inlet structure 2, the outlet end of the first heat-conducting plate 11 is connected with the collecting pipe 13, and the outlet of the first flow channel is connected with the inlet of the collecting flow channel; the inlet end of the second heat-conducting plate 12 is connected with the collecting pipe 13, the outlet end of the second heat-conducting plate 12 is connected with the outlet structure 3, the inlet of the second flow channel is connected with the outlet of the collecting flow channel, and the first flow channel, the collecting flow channel and the second flow channel are sequentially communicated to form a unit circulating flow channel.
Preferably, the circulation unit 1 is provided with a plurality of circulation flow channels, the circulation flow channels of the circulation unit 1 are equal in length, the flow lengths from the inlet of the inlet structure 2 to the inlets of the first flow channels of the first heat conduction plates 11 are equal, and the flow lengths from the outlet of the outlet structure 3 to the outlets of the second flow channels of the second heat conduction plates 12 are equal. In this way, the paths of each path of refrigerant flowing from the inlet of the inlet structure 2 and flowing out of the outlet structure 3 are equal in length, the design of the inlet and outlet loop can reduce the loops of the refrigerant, fully play the cooling/heating effect of the refrigerant, enable the cooling/heating effect of the battery pack to be more uniform, and improve the heat exchange (cooling/heating) efficiency.
In one embodiment, the first flow channel is parallel to the second flow channel, and the bus flow channel is perpendicular to the first flow channel and the second flow channel. The lengths of the first flow channels of the plurality of circulation units 1 are equal, the lengths of the second flow channels of the plurality of circulation units 1 are equal, and the lengths of the confluence flow channels of the plurality of circulation units 1 are equal, so that the lengths of the unit circulation flow channels of the plurality of circulation units 1 are equal.
When the first flow channel completely penetrates through the first baffle, the length of the first baffle is equal to that of the first flow channel, and at this time, the first baffles 11 are parallel and equal in length (as shown in fig. 3). When the second flow channel completely penetrates through the second baffle, the length of the second baffle 12 is equal to the length of the second flow channel, and at this time, the plurality of second baffles 12 are parallel and equal in length (as shown in fig. 3).
As shown in fig. 3, the length of the first baffle 11 is suitably smaller than the length of the second baffle 12 for easier piping arrangement.
As shown in fig. 4, the first heat conduction plate 11 is flat, a plurality of first isolation ribs 111 extending in the thickness direction of the first heat conduction plate 11 are provided in the first heat conduction plate 11, and the first flow channel is divided into a plurality of first sub-flow channels 112 arranged side by side in the width direction of the first heat conduction plate 11 by the plurality of first isolation ribs 111. The cross section of the first sub-flow channel 112 between two adjacent first isolation ribs 111 is rectangular.
However, in some alternatives, the extending directions of the plurality of first separating ribs 111 may be different, and the cross section of the first sub-flow passage 112 between two adjacent first separating ribs 111 may be other shapes, such as regular shapes like parallelograms, oblongs, ellipses, polygons, or other irregular shapes.
The strength of the first heat conducting plate 11 is enhanced by the first isolating rib 111, so that the first heat conducting plate 11 can bear the force of expansion with heat and contraction with cold of the refrigerant. The first isolation ribs 111 extending along the thickness direction of the first heat conduction plate 11 form a heat conduction path (which is equivalent to increase the heat exchange area of the first flow channel), so that the situation that the temperature difference between the middle and two sides of the first heat conduction plate 11 is large is avoided, the refrigerant can fully react, and the heat exchange efficiency is improved.
As shown in fig. 5, the second heat conduction plate 12 is flat, a plurality of second isolation ribs 121 extending in the thickness direction of the second heat conduction plate 12 are disposed in the second heat conduction plate 12, and the second flow channel is divided into a plurality of second sub-flow channels 122 arranged side by side in the width direction of the second heat conduction plate 12 by the plurality of first isolation ribs 121. The cross section of the second sub-flow channel 122 between two adjacent second isolation ribs 121 is rectangular.
However, in some alternatives, the extending directions of the second isolation ribs 121 may be different, and the cross section of the second sub-flow passage 122 between two adjacent first isolation ribs 121 may be other shapes, such as a regular shape like a parallelogram, an oval, an ellipse, a polygon, or other irregular shapes.
The second isolation rib 121 reinforces the strength of the second heat conducting plate 12, so that the second heat conducting plate 12 can bear the force of expansion with heat and contraction with cold of the refrigerant. The second isolation ribs 121 extend in the thickness direction of the second heat conduction plate 12, so that a heat conduction path (which is equivalent to increase the heat exchange area of the second flow channel) is formed, the situation that the temperature difference between the middle part and the two sides of the second heat conduction plate 12 is large is avoided, the refrigerant can fully react, and the heat exchange efficiency is improved.
As shown in fig. 2, the inlet structure 2 includes an inlet valve 21 and an inlet distribution pipe, one end of the inlet distribution pipe is connected to the outlet of the inlet valve 21, and the other end of the inlet distribution pipe is connected to the inlet of the first flow passage. The outlet structure 3 comprises an outlet valve 31 and an outlet distribution pipe, wherein one end of the outlet distribution pipe is connected with the inlet of the outlet valve 31, and the other end of the outlet distribution pipe is connected with the outlet of the second flow passage.
As shown in fig. 1, the circulation unit 1 is provided in plural numbers (4 in fig. 2). The collecting pipes 13 of the plurality of circulation units 1 are coaxially connected, and two adjacent collecting pipes 13 are separated by a partition plate 4. The manifold 13 of the plurality of circulation units 1 may be an integrated pipe or separate pipes.
In one embodiment, the inlet distribution pipe comprises an inlet pipe 22 and a plurality of inlet-side branches, wherein an inlet of the inlet pipe 22 is connected with an outlet of the inlet valve 21, an inlet of the inlet-side branches is connected with an outlet of the inlet pipe 22, and an outlet of the inlet-side branches is connected with an inlet of the first flow passage; the flow-through lengths of the inlet side legs are equal. The outlet distribution pipeline comprises an outlet pipe 32 and a plurality of outlet-side branches, wherein the outlet of the outlet pipe 32 is connected with the inlet of the outlet valve 31, the outlet of the outlet-side branches is connected with the inlet of the outlet pipe 32, and the inlet of the outlet-side branches is connected with the outlet of the second flow channel; the outlet side branches have equal flow lengths.
In one embodiment, as shown in fig. 2, the inlet side branch comprises an inlet side dividing pipe 24 and an inlet side flow-guiding pipe 25, and the outlet of the inlet pipe 22 is connected with the inlet of the first flow channel through the inlet side dividing pipe 24 and the inlet side flow-guiding pipe 25. The outlet-side branch comprises an outlet-side shunt pipe 34 and an outlet-side draft pipe 35, and the inlet of the outlet pipe 32 is connected with the outlet of the second flow channel through the outlet-side shunt pipe 34 and the inlet-side draft pipe 35.
In one embodiment, as shown in fig. 2, the inlet pipe 22 is connected to a plurality of the inlet side branches through an inlet side splitter valve 23, the inlet side splitter valve 23 has a plurality of outlets, each outlet of the inlet side splitter valve 23 is connected to one inlet side splitter pipe 24, the unit circulation flow passages of the plurality of circulation units 1 are equal in length, and the flow lengths from the inlet side splitter valve 23 to the outlets of the plurality of inlet side splitter pipes 24 are equal. The outlet pipe 32 is connected to a plurality of outlet-side branches through an outlet-side diverter valve 33, the outlet-side diverter valve 33 has a plurality of inlets, each inlet of the outlet-side diverter valve 33 is connected to one outlet-side diverter 34, and the lengths of the outlets from the outlet-side diverter valve 33 to the inlets of the outlet-side diverter 34 are equal.
Preferably, the inlet side manifold 24 is a hose to facilitate connection of the inlet side manifold valve 23 to the inlet side draft tube 25. Preferably, the outlet-side shunt pipe 34 is a hose so as to connect the outlet-side shunt valve 33 with the outlet-side draft pipe 35.
The inlet end of the first heat conducting plate 11 is connected to the inlet side flow guiding pipe 25, the inlet of the inlet pipe 22 is connected to the outlet of the inlet valve 21, the outlet of the inlet pipe 22 is connected to the inlet of the inlet side flow dividing valve 23, the inlet of the inlet side flow dividing pipe 24 is connected to the outlet of the inlet side flow dividing valve 23, the outlet of the inlet side flow dividing pipe 24 is connected to the inlet of the inlet side flow guiding pipe 25, and the outlet of the inlet side flow guiding pipe 25 is connected to the inlet of the first flow channel.
The outlet end of the second heat conducting plate 12 is connected to the outlet-side flow guiding tube 35, the inlet of the outlet-side flow guiding tube 35 is connected to the outlet of the second flow channel, the inlet of the outlet-side flow dividing tube 34 is connected to the outlet of the outlet-side flow guiding tube 35, the outlet of the outlet-side flow dividing tube 34 is connected to the inlet of the outlet-side flow dividing valve 33, the inlet of the outlet pipe 32 is connected to the outlet of the outlet-side flow dividing valve 33, and the outlet of the outlet pipe 32 is connected to the inlet of the outlet valve 31.
In fig. 2, the inlet-side flow dividing valve 23 has two outlets. In this way, the plurality of inlet side branch pipes 24 are connected to the plurality of outlets of the inlet side branch valve 23, so that the plurality of refrigerants can be simultaneously introduced into the plurality of circulation units 1.
In fig. 2, the outlet-side flow dividing valve 33 has two outlets. In this way, the plurality of outlet-side branch pipes 34 are connected to the plurality of outlets of the outlet-side branch valve 33, so that a plurality of paths of refrigerant can be simultaneously led out from the plurality of circulation units 1.
The flow lengths from the inlet side shunt valve 23 to the outlets of the inlet side shunt tubes 24 are all equal, and the refrigerants flowing out of the outlets of the inlet side shunt tubes 24 are converged at the inlet side draft tube 25; the outlet-side flow dividing valve 33 has the same flow length to the inlets of the outlet-side flow dividing pipes 34, and the refrigerant merged in the inlet-side flow guiding pipe 25 flows into the outlet-side flow dividing pipes 34 through the inlets of the outlet-side flow dividing pipes 34. In this way, the lengths of the flows from the inlets of the plurality of circulation units 1 to the inlet side diverting valve 23 are equal, and the lengths of the flows from the outlets of the plurality of circulation units 1 to the outlet side diverting valve 33 are equal, and since the inlet side diverting valve 23 is connected to the inlet valve 21 through the same inlet pipe 22 and the outlet side diverting valve 33 is connected to the outlet valve 31 through the same outlet pipe 32, the paths through which each path of the refrigerant from the inlet valve 21 to the outlet valve 22 flows are the same.
In a preferred embodiment, the inlet-side flow guide tube 25 is provided with a plurality of outlets (two in fig. 2), and one first heat-conducting plate 11 is connected to each outlet of the inlet-side flow guide tube 25. In this way, the refrigerant can be introduced into the plurality of circulation units 1 through one inlet-side duct 25. The number of pipes can be saved.
In a preferred embodiment, the outlet-side duct 35 is provided with a plurality of inlets (two inlets in fig. 2), and each inlet of the outlet-side duct 35 is connected to one of the second heat-conducting plates 12. In this way, the refrigerant can be guided out from the plurality of circulation units 1 by one outlet-side draft tube 35. The number of pipes can be saved.
In one embodiment, the battery pack thermal management device further includes an external cooling medium circuit (not shown), one end of the external cooling medium circuit is connected to the inlet of the inlet valve 21, and the other end of the external cooling medium circuit is connected to the outlet of the outlet valve 31. The external refrigerant circuit is provided with a compressor for realizing interconversion between a gaseous refrigerant and a liquid refrigerant, so as to provide the liquid refrigerant or the gaseous refrigerant to the circulation unit 1.
As shown in fig. 3, according to the utility model discloses battery package thermal management device, when the battery package needs the heat dissipation cooling, provide liquid refrigerant to circulation unit 1 through inlet structure 2, the refrigerant loops through the first runner of first heat-conducting plate 11, the second runner of converging runner and second heat-conducting plate 12 of collecting pipe 13, the heat of taking away the battery module of battery package is taken away to the endothermic principle of utilization liquid refrigerant evaporation gasification, and the refrigerant is derived by outlet structure 3 with gaseous form at last. When the battery pack needs to be heated, a gaseous refrigerant is provided to the circulating unit 1 through the inlet structure 2, the refrigerant sequentially passes through the first flow channel of the first heat-conducting plate 11, the converging flow channel of the converging pipe 13 and the second flow channel of the second heat-conducting plate 12, the battery pack is heated by utilizing the principle of liquefaction and heat release of the gaseous refrigerant, and finally the refrigerant is led out from the outlet structure 3 in a liquid state.
In the embodiment shown in fig. 1 to 3, 4 circulation units 1 are provided, but 1 to 3, or 5 or more circulation units may be provided as necessary. The specific number of which is set according to the thermal management needs of the battery pack. The circulation unit 1 needs to cover the entire battery pack.
Additionally, the embodiment of the utility model provides a still provide a battery package, including casing, battery module and foretell battery package thermal management device, the battery module sets up in the casing. The battery pack heat management device is arranged in the shell, and the first heat-conducting plate and the second heat-conducting plate exchange heat with the battery module.
The first heat-conducting plate and the second heat-conducting plate can be arranged on the top surface, the bottom surface or the side surface of the battery module.
An insulating heat conduction layer (such as silica gel) is arranged between the first heat conduction plate and the battery module, and the first heat conduction plate and the second heat conduction plate need to be insulated while heat conduction between the first heat conduction plate and the battery module is realized.
Set up battery package thermal management device inside the battery package, directly with the battery module heat transfer, the efficiency of thermal management is higher.
Additionally, the embodiment of the utility model provides a still provide a battery package, including casing, battery module and foretell battery package thermal management device, the battery module sets up in the casing. The battery pack heat management device is arranged outside the shell, the first heat-conducting plate and the second heat-conducting plate exchange heat with the shell, and the shell exchanges heat with the battery module.
Set up battery package thermal management device in the battery package outside, can reduce the volume of battery package, the battery package design degree of difficulty is littleer, can increase battery capacity.
In another aspect, an embodiment of the present invention further provides a vehicle, which includes the battery pack thermal management device of the above embodiment or the battery pack of the above embodiment.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (12)
1. A battery pack heat management device is characterized by comprising at least one circulation unit, an inlet structure and an outlet structure, wherein the inlet structure is used for providing a refrigerant for the circulation unit, the outlet structure is used for guiding the refrigerant out of the circulation unit, the circulation unit comprises a first heat-conducting plate, a second heat-conducting plate and a collecting pipe, a first flow channel is arranged in the first heat-conducting plate, a second flow channel is arranged in the second heat-conducting plate, and a collecting flow channel is arranged in the collecting pipe;
the inlet end of the first heat-conducting plate is connected with the inlet structure, the outlet end of the first heat-conducting plate is connected with the collecting pipe, and the outlet of the first flow channel is connected with the inlet of the collecting flow channel; the inlet end of the second heat-conducting plate is connected with the collecting pipe, the outlet end of the second heat-conducting plate is connected with the outlet structure, the inlet of the second flow channel is connected with the outlet of the collecting flow channel, and the first flow channel, the collecting flow channel and the second flow channel are sequentially communicated to form a unit circulating flow channel.
2. The heat management device for a battery pack of claim 1, wherein the circulation unit is provided in plurality, the unit circulation flow passages of the circulation unit are of equal length, the inlet structure has an inlet opening that has an equal flow length to the inlet openings of the first flow passages of the first heat-conducting plates, and the outlet structure has an outlet opening that has an equal flow length to the outlet openings of the second flow passages of the second heat-conducting plates.
3. The thermal management device for a battery pack according to claim 1, wherein the first heat-conducting plate is flat, a plurality of first insulating ribs extending in a thickness direction of the first heat-conducting plate are provided in the first heat-conducting plate, and the first flow channel is partitioned into a plurality of first sub-flow channels arranged side by side in a width direction of the first heat-conducting plate by the plurality of first insulating ribs;
the second heat-conducting plate is the platykurtic, be provided with in the second heat-conducting plate along a plurality of second isolation muscle that the second heat-conducting plate thickness direction extends, the second runner is separated into by a plurality of second isolation muscle and follows a plurality of second sub-runners side by side of the width direction of second heat-conducting plate.
4. The battery pack thermal management device of claim 1, wherein the inlet structure comprises an inlet valve and an inlet distribution channel, one end of the inlet distribution channel is connected to an outlet of the inlet valve, and the other end of the inlet distribution channel is connected to an inlet of the first flow channel;
the outlet structure comprises an outlet valve and an outlet distribution pipeline, one end of the outlet distribution pipeline is connected with the inlet of the outlet valve, and the other end of the outlet distribution pipeline is connected with the outlet of the second flow channel.
5. The battery pack thermal management device according to claim 4, wherein the circulation unit is provided in plurality;
the collecting pipes of the plurality of circulating units are coaxially connected, and two adjacent collecting pipes are separated by a partition plate.
6. The thermal management device according to claim 5, wherein the inlet distribution channel comprises an inlet tube and a plurality of inlet-side branches, wherein an inlet of the inlet tube is connected to an outlet of the inlet valve, an inlet of the inlet-side branches is connected to an outlet of the inlet tube, and an outlet of the inlet-side branches is connected to an inlet of the first flow channel; the flow-through lengths of the inlet side legs are equal;
the outlet distribution pipeline comprises an outlet pipe and a plurality of outlet side branches, the outlet of the outlet pipe is connected with the inlet of the outlet valve, the outlet of the outlet side branches is connected with the inlet of the outlet pipe, and the inlet of the outlet side branches is connected with the outlet of the second flow channel; the outlet side branches have equal flow lengths.
7. The thermal management device for battery packs of claim 6, wherein the inlet side branch comprises an inlet side flow-splitting pipe and an inlet side flow-guiding pipe, and the outlet of the inlet pipe is connected with the inlet of the first flow channel through the inlet side flow-splitting pipe and the inlet side flow-guiding pipe;
the outlet side branch comprises an outlet side flow dividing pipe and an outlet side flow guiding pipe, and the inlet of the outlet pipe is connected with the outlet of the second flow passage through the outlet side flow dividing pipe and the inlet side flow guiding pipe.
8. The thermal management device for battery packs according to claim 7, wherein the inlet tube is connected to the plurality of inlet side branches through an inlet side flow divider having a plurality of outlets, and wherein each outlet of the inlet side flow divider is connected to one inlet side flow divider, the unit circulation channels of the plurality of circulation units are equally long, and the circulation lengths of the inlet side flow divider to the outlets of the plurality of inlet side flow dividers are equal;
the outlet pipe is connected with the outlet side branches through an outlet side shunt valve, the outlet side shunt valve is provided with a plurality of inlets, each inlet of the outlet side shunt valve is connected with one outlet side shunt pipe, and the flow lengths from the outlet side shunt valve to the inlets of the outlet side shunt pipes are equal.
9. The battery pack thermal management device according to claim 7 or 8, wherein the inlet-side flow guide tube is provided with a plurality of outlets, and the first heat-conducting plate is attached to each outlet of the inlet-side flow guide tube;
the outlet side honeycomb duct is provided with a plurality of entries, and each entry of the outlet side honeycomb duct is connected with one second heat-conducting plate.
10. The device of claim 4, further comprising an external coolant loop, one end of the external coolant loop being connected to the inlet of the inlet valve and the other end of the external coolant loop being connected to the outlet of the outlet valve;
and the external refrigerant loop is provided with a compressor for realizing the interconversion of the gaseous refrigerant and the liquid refrigerant.
11. A battery pack comprising a housing, a battery module, and the battery pack thermal management device of any one of claims 1-10, the battery module being disposed within the housing;
the battery pack heat management device is arranged in the shell, and the first heat conduction plate and the second heat conduction plate exchange heat with the battery module; in the alternative, the first and second sets of the first,
the battery pack heat management device is arranged outside the shell, the first heat-conducting plate and the second heat-conducting plate exchange heat with the shell, and the shell exchanges heat with the battery module.
12. A vehicle comprising the battery pack thermal management device of any one of claims 1 to 10 or the battery pack of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399308.2U CN210167415U (en) | 2019-08-23 | 2019-08-23 | Battery pack thermal management device, battery pack and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399308.2U CN210167415U (en) | 2019-08-23 | 2019-08-23 | Battery pack thermal management device, battery pack and vehicle |
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| CN210167415U true CN210167415U (en) | 2020-03-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883875A (en) * | 2020-07-13 | 2020-11-03 | 珠海格力电器股份有限公司 | Heat exchange plate with flow guide fins and battery PACK box |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883875A (en) * | 2020-07-13 | 2020-11-03 | 珠海格力电器股份有限公司 | Heat exchange plate with flow guide fins and battery PACK box |
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