CN212967824U - Balanced heat radiation structure of electric core group, electric core module and battery box - Google Patents
Balanced heat radiation structure of electric core group, electric core module and battery box Download PDFInfo
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- CN212967824U CN212967824U CN202022070654.5U CN202022070654U CN212967824U CN 212967824 U CN212967824 U CN 212967824U CN 202022070654 U CN202022070654 U CN 202022070654U CN 212967824 U CN212967824 U CN 212967824U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application discloses a balanced heat dissipation structure of a cell group, a cell module and a battery box, wherein a liquid cooling plate comprises a water inlet and a water outlet, and the flow direction of cooling liquid in the liquid cooling plate is from the water inlet to the water outlet; the heat conducting layer is arranged between the liquid cooling plate and the electric core group, and the width of the heat conducting layer is increased along the flow direction of the cooling liquid; this application balanced heat radiation structure of electric core group, electric core module and battery box, the width of heat-conducting layer is along the flow direction grow of coolant liquid for the heat of electric core group is comparatively balanced, reduces the difference in temperature between the electric core, thereby reaches the balanced purpose of heat dissipation, prolongs the life of electric core.
Description
Technical Field
The utility model relates to an electricity core structure field, in particular to balanced heat radiation structure of electric core group, electric core module and battery box.
Background
Along with the continuous rising of the quantity of motor vehicles, the environmental pollution is more and more serious when people go out conveniently. Therefore, various countries around the world are currently working on developing electric vehicle technology. And as electric automobile's core component electricity core all can release a large amount of heats at the in-process of charging and discharging, above-mentioned heat gives off in time, not only can shorten the life of electricity core, can bring the incident hidden danger moreover.
The common method for dissipating heat of the battery cell is to arrange a water cooling plate at the bottom of the battery cell, and the cooling water circulates on the water cooling plate to take away heat, so that the battery cell can dissipate heat in time.
At present, because the electric core group is to the thermal efficiency homogeneous of liquid cooling board transmission, the cooling efficiency of liquid cooling board is the step-down trend along the flow direction of coolant liquid, and this causes the heat dissipation process of electric core group uneven, and the performance difference that produces between each electric core in the electric core group after long-term the use is bigger and bigger, influences the performance uniformity and the life-span of electric property group.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a balanced heat radiation structure of electric core group, electric core module and battery box aims at solving the unbalanced problem of battery system cooling.
In order to achieve the above object, the utility model provides a balanced heat radiation structure of electric core group includes:
the liquid cooling plate comprises a water inlet and a water outlet, and the flow direction of cooling liquid in the liquid cooling plate is from the water inlet to the water outlet;
the heat-conducting layer, the heat-conducting layer set up in the liquid-cooling board with between the electric core group, the width of heat-conducting layer is followed the flow direction grow of coolant liquid.
Furthermore, a groove for bearing the heat conduction layer is arranged on the liquid cooling plate, and the shape of the groove is matched with that of the heat conduction layer.
Further, the electric core pack also comprises a leveling frame, wherein the leveling frame is arranged between the liquid cooling plate and the electric core pack;
the heat conduction layer is arranged in the hollowed-out portion of the leveling frame, and the heat conduction layer is smaller than the heat conduction coefficient of the heat conduction layer.
Further, the shape of heat-conducting layer is isosceles trapezoid.
Further, the size of the upper base of the isosceles trapezoid is half of the size of the lower base.
Further, the heat conduction layer is a heat conduction sheet.
Further, the heat conducting sheet is in a compressed state between the electric core group and the liquid cooling plate.
Further, the heat conduction layer is a heat conduction glue layer.
An electric core module comprises the electric core group balanced heat dissipation structure.
A battery box comprises the above electric core group balanced heat dissipation structure.
This application balanced heat radiation structure of electric core group, electric core module and battery box, the width of heat-conducting layer is followed the flow direction grow of coolant liquid makes the heat of electric core group is comparatively balanced, reduces the difference in temperature between the electric core to reach the balanced purpose of heat dissipation, prolong the life of electric core.
Drawings
Fig. 1 is a schematic view of a balanced heat dissipation structure of an electric core assembly according to an embodiment of the present invention;
fig. 2 is a schematic view of a balanced heat dissipation structure of an electric core assembly according to a second embodiment of the present invention;
fig. 3 is a schematic view of a balanced heat dissipation structure of an electric core assembly according to a third embodiment of the present invention;
fig. 4 is a schematic view of the structure of the balanced heat dissipation of the electric core assembly according to the fourth embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
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 used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1, to the present invention, in an embodiment of the present invention, an electric core assembly balanced heat dissipation structure includes:
a liquid-cooled plate 100, said liquid-cooled plate 100 comprising a water inlet 110 and a water outlet 120, said liquid-cooled plate 100 having a flow direction of a cooling liquid directed from said water inlet 110 to said water outlet 120;
and one heat conduction layer 200, wherein the heat conduction layer 200 is arranged between the liquid cooling plate 100 and the electric core group 300, and the width of the heat conduction layer 200 is increased along the flowing direction of the cooling liquid.
The temperature of the coolant at the water inlet 110 is the lowest, so that the cooling efficiency of the liquid cooling plate 100 near the water inlet 110 is high; the cold liquid at the water outlet 120 has a temperature increase due to the absorption of more heat from the electric core assembly 300, so the cooling efficiency of the liquid cooling plate 100 near the water outlet 120 is low. The cooling efficiency of the liquid-cooled panel 100 tends to become lower along the flow direction of the cooling liquid. The width of the heat conduction layer 200 increases along the flow direction of the cooling liquid, which results in the efficiency of the electric core assembly 300 transferring heat to the liquid-cooling plate 100 tending to increase along the flow direction of the cooling liquid. The above two trends balance the heat dissipation of the electric core pack 300.
This application balanced heat radiation structure of electric core group, electric core module and battery box, the width of heat-conducting layer 200 is followed the flow direction grow of coolant liquid makes the heat of electric core group 300 is comparatively balanced, reduces the difference in temperature between the electric core to reach the balanced purpose of heat dissipation, prolong the life of electric core.
Referring to fig. 2, in one embodiment, the liquid-cooled plate 100 is provided with a groove 130 for carrying the heat conductive layer, and the shape of the groove 130 matches the shape of the heat conductive layer 200.
The presence of the aforementioned recess 130 facilitates the fixing of the heat conductive layer 200. The heat conduction efficiency of the electric core assembly 300 directly contacting the liquid cooling plate 100 is lower than that of the electric core assembly 300 to the liquid cooling plate 100 through the heat conduction layer 200. Therefore, the cooling efficiency of the liquid-cooling plate 100 tends to become lower along the flowing direction of the cooling liquid, and the efficiency of the electric core pack 300 transferring heat to the liquid-cooling plate 100 tends to become higher along the flowing direction of the cooling liquid, so that the heat dissipation of the electric core pack 300 is equalized.
Referring to fig. 3, in one embodiment, the electric core pack equalizing heat dissipation structure includes a plurality of liquid-cooled plates 100 and a plurality of heat conducting layers 200, wherein the heat conducting layers 200 are disposed between the liquid-cooled plates 100 and the electric core packs 300.
Referring to fig. 4, in one embodiment, a leveling frame 400 is further included, and the leveling frame 400 is disposed between the liquid cooling plate 100 and the electric core pack 300;
the middle of the leveling frame 400 is provided with a hollow-out portion, the shape of the hollow-out portion is matched with that of the heat conduction layer 200, the heat conduction layer 200 is arranged in the hollow-out portion of the leveling frame 400, and the heat conductivity coefficient of the leveling frame 400 is smaller than that of the heat conduction layer 200.
The leveling frame 400 and the heat conduction layer 200 form a flat layer structure, so that the electric core assembly 300 is more stably fixed on the liquid cooling plate 100, and the improvement of the structure of the liquid cooling plate 100 is also avoided. The leveling frame 400 is used for fixing the electric core assembly 300, and if the thermal conductivity of the leveling frame 400 is higher than that of the heat conducting layer 200, the leveling frame cannot be fixed through the heat conducting layer 200.
In one embodiment, the heat conductive layer 200 is shaped as an isosceles trapezoid.
The water inlet 110 and the water outlet 120 of the liquid cooling plate 100 are generally located on the center line of the liquid cooling plate 100, and the heat conducting layer 200 has an isosceles trapezoid shape so that the heat dissipation of the electric core assembly 300 is more uniform.
In one embodiment, the upper base dimension of the isosceles trapezoid is half the lower base dimension. The size relation design of the upper bottom and the lower bottom of the isosceles trapezoid can meet the purpose of balanced heat dissipation of the electric core assembly 300 with common models.
In one embodiment, the thermally conductive layer 200 is a thermally conductive sheet. The heat conducting sheet is clamped by the electric core assembly 300 and the liquid cooling plate 100. The conducting strip is common heat conducting sheets such as silica gel conducting strip or silicone grease conducting strip, and the assembly efficiency that solidifies after above-mentioned heat conducting sheet compares and coats the heat conducting glue on liquid cooling plate 100 obviously improves.
In one embodiment, the heat conductive sheet is in a compressed state between the electric core pack 300 and the liquid cooling plate 100. The heat conducting sheet is in a compressed state, which is beneficial to the heat conduction efficiency between the electric core assembly 300 and the liquid cooling plate 100.
In one embodiment, the thermally conductive layer 200 is a thermally conductive adhesive layer.
The heat-conducting adhesive layer is formed after the heat-conducting adhesive coated on the bottom of the electric core assembly 300 is solidified, and the method for coating the heat-conducting adhesive is a process commonly adopted at present, and is beneficial to increasing the heat-conducting efficiency between the electric core assembly 300 and the interface of the liquid cooling plate 100.
An electric core module comprises the electric core group balanced heat dissipation structure.
Including the balanced heat radiation structure's of above-mentioned electric core group electric core module, make the radiating process of electric core group 300 is comparatively balanced, and the performance difference that produces between each electric core reduces in the long-term back electric core group 300 of using, does benefit to the uniformity of electric core group 300 performance after using makes above-mentioned electric core module stable performance.
The utility model provides a battery box, includes foretell balanced heat radiation structure of electric core group, makes the heat dissipation process of electric core group 300 is comparatively balanced, and the performance difference that produces between each electric core reduces in the long-term back electric core group 300 of using, does benefit to the uniformity of electric core group 300 performance after using for above-mentioned battery box stable performance.
This application balanced heat radiation structure of electric core group, electric core module and battery box, the width of heat-conducting layer 200 is followed the flow direction grow of coolant liquid makes the heat of electric core group 300 is comparatively balanced, reduces the difference in temperature between the electric core to reach the balanced purpose of heat dissipation, prolong the life of electric core.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (10)
1. The utility model provides a balanced heat radiation structure of electric core group which characterized in that includes:
the liquid cooling plate comprises a water inlet and a water outlet, and the flow direction of cooling liquid in the liquid cooling plate is from the water inlet to the water outlet;
the heat-conducting layer, the heat-conducting layer set up in the liquid-cooling board with between the electric core group, the width of heat-conducting layer is followed the flow direction grow of coolant liquid.
2. The structure for equalizing and dissipating heat of a battery pack according to claim 1, wherein the liquid-cooled plate is provided with grooves for supporting the heat conducting layer, and the shape of the grooves matches with that of the heat conducting layer.
3. The electric core assembly balanced heat dissipation structure of claim 1, further comprising a leveling frame, wherein the leveling frame is disposed between the liquid cooling plate and the electric core assembly;
the heat conduction layer is arranged in the hollowed-out portion of the leveling frame, and the heat conduction layer is smaller than the heat conduction coefficient of the heat conduction layer.
4. The structure for equalizing and dissipating heat of the electric core pack according to any one of claims 1 to 3, wherein the shape of the heat conducting layer is an isosceles trapezoid.
5. The structure of claim 4, wherein the isosceles trapezoid has an upper base half of a lower base.
6. The structure for equalizing heat dissipation of electrical core pack according to any one of claims 1-3, wherein said heat conducting layer is a heat conducting sheet.
7. The balanced heat dissipation structure of battery pack according to claim 6, wherein the heat conducting fins are compressed between the battery pack and the liquid cooling plate.
8. The structure for uniformly dissipating heat from a battery pack according to any one of claims 1 to 3, wherein the heat conductive layer is a heat conductive adhesive layer.
9. A battery cell module, characterized in that, it includes the battery cell pack equalizing heat dissipation structure of any one of claims 1-8.
10. A battery box, characterized in that, it comprises the electric core group equalizing heat dissipation structure of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022070654.5U CN212967824U (en) | 2020-09-18 | 2020-09-18 | Balanced heat radiation structure of electric core group, electric core module and battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022070654.5U CN212967824U (en) | 2020-09-18 | 2020-09-18 | Balanced heat radiation structure of electric core group, electric core module and battery box |
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| CN212967824U true CN212967824U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909378A (en) * | 2021-05-06 | 2021-06-04 | 蜂巢能源科技有限公司 | Battery pack and power device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909378A (en) * | 2021-05-06 | 2021-06-04 | 蜂巢能源科技有限公司 | Battery pack and power device |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |