Battery and vehicle having the same

Abstract

The utility model provides a kind of battery and vehicle with it, battery includes shell, battery further includes at least two layers of battery layer, each layer battery layer includes battery monomer;Battery further includes a plurality of heating sheet, multiple heating sheet includes first heating sheet, second heating sheet and third heating sheet, first heating sheet is set between any two adjacent battery layer;The downside of bottom layer battery layer in at least two layers of battery layer is provided with second heating sheet;The upside of top layer battery layer in at least two layers of battery layer is provided with third heating sheet.The battery of the utility model solves the problem of low heating efficiency of battery in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery and a vehicle having the same. Background Technology

[0002] With the rapid development of new energy vehicles, pure electric vehicles have become a trend in the automotive industry. As the power source for pure electric vehicles, the battery pack is crucial to the vehicle's performance and safety.

[0003] Currently, heating elements are typically arranged in a single manner, such as placing heating elements only on the lower or upper module, or simultaneously heating the upper and lower modules through an intermediate heating element. This has the following disadvantages:

[0004] The heating efficiency is low because heat is lost during conduction due to the properties of the insulation layer or materials between battery modules, resulting in reduced heating efficiency.

[0005] Uneven heat distribution can easily lead to poor heating effect and insufficient heating uniformity in the upper module due to excessive distance or heat attenuation.

[0006] The energy consumption is relatively high. In order to ensure the heating effect of the upper module, the power of the middle heating element needs to be increased, which leads to an increase in overall energy consumption.

[0007] High maintenance costs are incurred due to low heating efficiency and uneven heat distribution, requiring frequent adjustments to heating parameters or replacement of heating elements, which increases the equipment's maintenance costs. Utility Model Content

[0008] The main objective of this invention is to provide a battery and a vehicle having the same, in order to solve the problem of low heating efficiency of batteries in the prior art.

[0009] To achieve the above objectives, according to one aspect of the present invention, a battery is provided, including a casing, and the battery further including at least two battery layers, each battery layer including a battery cell; the battery further including a plurality of heating elements, the plurality of heating elements including a first heating element, a second heating element and a third heating element, a first heating element being disposed between any two adjacent battery layers; a second heating element being disposed on the lower side of the bottom battery layer in the at least two battery layers; and a third heating element being disposed on the upper side of the top battery layer in the at least two battery layers.

[0010] Furthermore, the battery layers on both sides of the first heating element are attached to it; the second heating element is attached to the battery layer on its upper side; and the third heating element is attached to the battery layer on its lower side.

[0011] Furthermore, the heating element includes a sheet body and heating elements disposed on the sheet body; the heating element includes a first sheet body and a second sheet body, the second sheet body is disposed around the first sheet body, and the number of heating elements in the second sheet body is greater than the number of heating elements in the first sheet body.

[0012] Furthermore, the heating power of the heating element of the second piece is greater than that of the heating element of the first piece; and / or, the heating area of ​​the heating element of the second piece is greater than that of the heating area of ​​the heating element of the first piece.

[0013] Furthermore, the heating element is a heating wire, and the number of heating wires in the second piece is greater than the number of heating wires in the first piece.

[0014] Furthermore, the housing has a receiving protrusion for accommodating a battery cell and a clearance recess for avoiding a vehicle beam. The clearance recess penetrates the housing along a first preset direction, and the opening of the clearance recess faces a second preset direction. Along a third preset direction, there are receiving protrusions on both sides of the clearance recess. A third heating element is provided on each battery cell within each receiving protrusion. The first preset direction, the second preset direction, and the third preset direction are arranged perpendicularly to each other.

[0015] Furthermore, the housing has three receiving protrusions and two avoidance recesses, with an avoidance recess provided between any two adjacent receiving protrusions; at least two battery layers include a first battery layer, the first battery layer includes three battery cells, the three battery cells are respectively disposed in the three receiving protrusions and each of them is provided with a third heating element on its top.

[0016] Furthermore, the battery also includes at least two heat exchangers, each having a cavity for accommodating a heat exchange medium. The at least two heat exchangers include: a first heat exchanger disposed at the bottom of the housing, with a second heating element disposed between the first heat exchanger and the bottom battery layer of the at least two battery layers, the two sides of the second heating element being in contact with the first heat exchanger and the battery layer respectively; and a second heat exchanger disposed within the housing, between the first heating element and the battery layer located above it, the two sides of the second heat exchanger being in contact with the first heating element and the battery layer respectively. The cavity of the heat exchanger is used to accommodate a cooling medium or a heating medium, so that the heat exchanger can cool or heat the at least two battery layers.

[0017] Furthermore, the heating element is bonded.

[0018] According to another aspect of the present invention, a vehicle is provided, including a battery, wherein the battery is the battery described above.

[0019] Applying the technical solution of this utility model, the battery includes a casing, at least two battery layers, and multiple heating elements. A first heating element is disposed between any two adjacent battery layers; a second heating element is disposed on the underside of the bottom battery layer in the at least two battery layers; and a third heating element is disposed on the top side of the top battery layer in the at least two battery layers. It can be seen that by distributing heating elements between any two adjacent battery layers, on the underside of the bottom battery layer in the at least two battery layers, and on the top side of the top battery layer in the at least two battery layers, each battery layer can be heated by the heating elements on both the upper and lower sides, achieving efficient heating of each battery layer, improving heating capacity and efficiency, and ensuring heating uniformity between each battery layer. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 An exploded view of an embodiment of the battery according to the present invention is shown;

[0022] Figure 2 An exploded view of the battery concealing the second heating element according to the present invention is shown;

[0023] Figure 3 A perspective view of an embodiment of the battery according to the present invention is shown;

[0024] Figure 4 It shows according to Figure 3 A magnified view of a portion of the battery at point I.

[0025] The above figures include the following reference numerals:

[0026] 10. Shell; 11. Accommodating protrusion; 12. Avoiding recess; 13. Box body; 14. Box lid;

[0027] 20. Battery cell;

[0028] 30. Battery layer; 31. First battery layer; 32. Second battery layer;

[0029] 41. First heat exchanger;

[0030] 42. Second heat exchanger;

[0031] 431. Main inlet pipe; 432. First inlet pipe; 433. Second inlet pipe;

[0032] 434. Main outlet pipe; 435. First outlet pipe; 436. Second outlet pipe;

[0033] 44. First tee connector; 45. Second tee connector;

[0034] 51. First heating element; 52. Second heating element; 53. Third heating element. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] This utility model provides a battery; please refer to [reference needed]. Figures 1 to 4 The battery includes a housing 10 and at least two battery layers 30, each of which includes a battery cell 20. The battery includes multiple heating elements, including a first heating element 51, a second heating element 52, and a third heating element 53. A first heating element 51 is provided between any two adjacent battery layers 30. A second heating element 52 is provided on the lower side of the bottom battery layer 30 of the at least two battery layers 30. A third heating element 53 is provided on the upper side of the top battery layer 30 of the at least two battery layers 30.

[0039] The battery of this invention includes a casing 10, at least two battery layers 30, and multiple heating elements. A first heating element 51 is disposed between any two adjacent battery layers 30; a second heating element 52 is disposed on the lower side of the bottom battery layer 30 in the at least two battery layers 30; and a third heating element 53 is disposed on the upper side of the top battery layer 30 in the at least two battery layers 30. It can be seen that by distributing heating elements between any two adjacent battery layers 30, on the lower side of the bottom battery layer 30 in the at least two battery layers 30, and on the upper side of the top battery layer 30 in the at least two battery layers 30, each battery layer 30 can be heated by the heating elements on both the upper and lower sides, achieving efficient heating of each battery layer 30, improving heating capacity and efficiency, and ensuring heating uniformity between each battery layer 30.

[0040] Specifically, the battery layers 30 on both sides of the first heating element 51 are attached to it; the second heating element 52 is attached to the battery layer 30 on its upper side; and the third heating element 53 is attached to the battery layer 30 on its lower side.

[0041] It should be noted that the above-mentioned bonding can be direct bonding or indirect bonding, that is, there are other structures in between, but the heat transfer efficiency of the other structures is still higher than that of air (when there are gaps between them). In specific implementation, the bonding arrangement of the first heating element 51, the second heating element 52 and the third heating element 53 can further improve the heating efficiency.

[0042] Specifically, the heating element includes a sheet body and heating elements disposed on the sheet body; the heating element includes a first sheet body and a second sheet body, the second sheet body being disposed around the first sheet body, and the number of heating elements in the second sheet body being greater than the number of heating elements in the first sheet body. This arrangement makes the temperature more uniform during heating.

[0043] Optionally, the heating power of the heating element in the second sheet is greater than that of the heating element in the first sheet; and / or, the heating area of ​​the heating element in the second sheet is greater than that of the heating area of ​​the heating element in the first sheet. This arrangement can also make the temperature more uniform during heating. It should be noted that the heating area refers to the area of ​​the projection of the heating element onto the first or second sheet.

[0044] Specifically, the heating element is a heating wire, and the number of heating wires in the second sheet is greater than the number of heating wires in the first sheet. In actual implementation, the heating wires are not uniformly distributed, with fewer heating wires in the middle and more around the edges, so that the temperature is more uniform during heating; the density of the heating wire arrangement can be determined through thermal simulation.

[0045] Specifically, the housing 10 has a receiving protrusion 11 for accommodating a battery cell 20 and a clearance recess 12 for avoiding a vehicle beam. The clearance recess 12 penetrates the housing 10 along a first preset direction, and its opening faces a second preset direction. Along a third preset direction, both sides of the clearance recess 12 have receiving protrusions 11. Each battery cell 20 within each receiving protrusion 11 is provided with a third heating element 53. The first, second, and third preset directions are arranged perpendicularly to each other. This arrangement ensures that each battery cell 20 is heated.

[0046] It should be noted that the first preset direction is the width direction of the battery, the second preset direction is the height direction of the battery, and the third preset direction is the length direction of the battery.

[0047] Specifically, the housing 10 has three receiving protrusions 11 and two clearance recesses 12, and a clearance recess 12 is provided between any two adjacent receiving protrusions 11; at least two battery layers 30 include a first battery layer 31, the first battery layer 31 includes three battery cells 20, the three battery cells 20 are respectively disposed in the three receiving protrusions 11 and each of them is provided with a third heating element 53 on its top.

[0048] Specifically, the battery also includes at least two heat exchangers, each having a cavity for accommodating a heat exchange medium. The at least two heat exchangers include: a first heat exchanger 41 disposed at the bottom of the housing 10, and a second heating element 52 disposed between the first heat exchanger 41 and the bottom battery layer 30 of the at least two battery layers 30, with both sides of the second heating element 52 in contact with the first heat exchanger 41 and the battery layer 30 respectively; and a second heat exchanger 42 disposed within the housing 10, between the first heating element 51 and the battery layer 30 located above it, with both sides of the second heat exchanger 42 in contact with the first heating element 51 and the battery layer 30 respectively. The cavity of the heat exchanger is used to accommodate a cooling medium or a heating medium, so that the heat exchanger can cool or heat the at least two battery layers 30.

[0049] In practical implementation, because the battery is equipped with a first heat exchanger 41 and a second heat exchanger 42, both of which are directly or indirectly bonded to the corresponding battery layer 30, the heat transfer efficiency is high, improving the cooling capacity of the battery's cooling system and solving the problem of insufficient cooling efficiency in the cooling systems of batteries in the prior art. It should be noted that the bonding of the first heat exchanger 41 and the second heat exchanger 42 to the corresponding battery layer 30 can include direct bonding and indirect bonding. The bonded structures all have good heat transfer effects and are more efficient than heat conduction through air with gaps.

[0050] In practice, the heating medium is liquid, and the heat exchanger cools or heats at least two battery layers 30. This setup allows for heating of each battery layer using heating elements as well as heating using the heat exchanger. Especially under extreme conditions, both can be used for heating to improve heating efficiency and enhance battery applicability.

[0051] Specifically, the second heat exchanger 42 is fixedly connected to the housing 10. This arrangement increases the strength of the battery.

[0052] Specifically, the battery includes two battery layers 30; the housing 10 includes a box body 13 and a box cover 14 covering the box body 13, at least a portion of the upper first battery layer 31 of the two battery layers 30 is located inside the box cover 14, and the lower second battery layer 32 of the two battery layers 30 is located inside the box body 13; wherein, the second heat exchanger 42 is fixedly connected to the side wall of the box body 13, such a configuration increases the strength of the battery.

[0053] In specific implementation, the second battery layer 32 is cooled or heated by the first heat exchanger 41 and the second heat exchanger 42, and the first battery layer 31 is cooled or heated by the second heat exchanger 42.

[0054] Specifically, the battery also includes heat exchange piping, with at least two heat exchange elements connected to the heat exchange piping, so that the at least two heat exchange elements are connected in parallel or in series. This configuration makes the cooling system connection flexible and can adapt to the cooling requirements under different operating conditions.

[0055] Specifically, the battery includes two battery layers 30; the heat exchange pipeline includes a main inflow pipe 431, a first inflow pipe 432, and a second inflow pipe 433. One end of the first inflow pipe 432 and one end of the second inflow pipe 433 are respectively connected to the main inflow pipe 431, and the other ends of the first inflow pipe 432 and the second inflow pipe 433 are respectively connected to the receiving cavity of the first heat exchanger 41 and the receiving cavity of the second heat exchanger 42, so that the heat exchange medium enters the first heat exchanger 41 through the main inflow pipe 431, the first inflow pipe 432, and the second inflow pipe 433. The first heat exchanger 435 and the second heat exchanger 436; and / or the main outlet pipe 434, the first outlet pipe 435 and the second outlet pipe 436, one end of the first outlet pipe 435 and one end of the second outlet pipe 436 are respectively connected to the main outlet pipe 434, and the other end of the first outlet pipe 435 and the other end of the second outlet pipe 436 are respectively connected to the receiving cavity of the first heat exchanger 41 and the receiving cavity of the second heat exchanger 42, so that the heat exchange medium in the first heat exchanger 41 and the second heat exchanger 42 flows out through the first outlet pipe 435, the second outlet pipe 436 and the main outlet pipe 434.

[0056] Specifically, the main inflow pipe 431, the first inflow pipe 432, and the second inflow pipe 433 are connected through the first tee interface 44, and the main outflow pipe 434, the first outflow pipe 435, and the second outflow pipe 436 are connected through the second tee interface 45.

[0057] In specific implementation, the configuration of the main inlet pipe 431, the first inlet pipe 432 and the second inlet pipe 433, and the main outlet pipe 434, the first outlet pipe 435 and the second outlet pipe 436 enables the two battery layers 30 to be connected in parallel. The water flow path is as follows: the water flows sequentially through the vehicle outlet, the vehicle water system, the main inlet pipe 431, and the first T-junction 44, then flows into the two battery layers 30 through the first inlet pipe 432 and the second inlet pipe 433 respectively. After heat exchange, the water flows out from the two battery layers 30, flows through the first outlet pipe 435 and the second outlet pipe 436 respectively, merges at the second T-junction 45, and then flows out sequentially through the main outlet pipe 434, the vehicle water system, and the vehicle return outlet. In addition, the flow rate of the heat exchange pipeline can be controlled by adjusting the diameter of the first inlet pipe 432 and the second inlet pipe 433, and the first outlet pipe 435 and the second outlet pipe 436, thereby improving the temperature distribution.

[0058] Specifically, the heating element is bonded. This design facilitates the installation of the heating element.

[0059] Specifically, a temperature sensor is provided on the multi-layer battery layer 30. The temperature sensor collects the temperature of the multi-layer battery layer 30 and feeds the temperature back to the battery management system, so that the battery management system can control the heating element.

[0060] This utility model also provides a vehicle, including a battery, wherein the battery is the battery in the above embodiments.

[0061] This invention optimizes the arrangement of heating elements, improving heating efficiency and uniformity through the rational configuration of their positions and functions. Specifically, this solution addresses the problems of uneven heating and high energy consumption in existing technologies by setting up a first, second, and third heating element, thereby achieving a more efficient and uniform heating effect.

[0062] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0063] The battery of this invention includes a casing 10, at least two battery layers 30, and multiple heating elements. A first heating element 51 is disposed between any two adjacent battery layers 30; a second heating element 52 is disposed on the lower side of the bottom battery layer 30 in the at least two battery layers 30; and a third heating element 53 is disposed on the upper side of the top battery layer 30 in the at least two battery layers 30. It can be seen that by distributing heating elements between any two adjacent battery layers 30, on the lower side of the bottom battery layer 30 in the at least two battery layers 30, and on the upper side of the top battery layer 30 in the at least two battery layers 30, each battery layer 30 can be heated by the heating elements on both the upper and lower sides, achieving efficient heating of each battery layer 30, improving heating capacity and efficiency, and ensuring heating uniformity between each battery layer 30.

[0064] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery, comprising a casing (10), characterized in that, The battery further includes at least two battery layers (30), each of which includes a battery cell (20); the battery further includes multiple heating elements, each of which includes a first heating element (51), a second heating element (52) and a third heating element (53), with the first heating element (51) disposed between any two adjacent battery layers (30); the second heating element (52) is disposed on the lower side of the bottom battery layer (30) of the at least two battery layers (30); and the third heating element (53) is disposed on the upper side of the top battery layer (30) of the at least two battery layers (30).

2. The battery according to claim 1, characterized in that, The battery layers (30) on both sides of the first heating element (51) are attached to it; the second heating element (52) is attached to the battery layer (30) on its upper side; and the third heating element (53) is attached to the battery layer (30) on its lower side.

3. The battery according to claim 1, characterized in that, The heating element includes a sheet body and heating elements disposed on the sheet body; the heating element includes a first sheet body and a second sheet body, the second sheet body is disposed around the first sheet body, and the number of heating elements in the second sheet body is greater than the number of heating elements in the first sheet body.

4. The battery according to claim 3, characterized in that, The heating power of the heating element of the second sheet is greater than the heating power of the heating element of the first sheet; and / or The heating area of ​​the heating element of the second sheet is greater than the heating area of ​​the heating element of the first sheet.

5. The battery according to claim 3, characterized in that, The heating element is a heating wire, and the number of heating wires in the second sheet is greater than the number of heating wires in the first sheet.

6. The battery according to claim 1, characterized in that, The housing (10) has a receiving protrusion (11) for accommodating the battery cell (20) and a clearance recess (12) for avoiding the beam of a vehicle. The clearance recess (12) penetrates the housing (10) along a first preset direction, and the opening of the clearance recess (12) is arranged facing a second preset direction. Along a third preset direction, the clearance recess (12) has the receiving protrusion (11) on both sides. The battery cell (20) in each of the receiving protrusions (11) is provided with a third heating element (53). The first preset direction, the second preset direction and the third preset direction are arranged perpendicular to each other.

7. The battery according to claim 6, characterized in that, The housing (10) has three receiving protrusions (11) and two avoidance recesses (12), and an avoidance recess (12) is provided between any two adjacent receiving protrusions (11); at least two battery layers (30) include a first battery layer (31), the first battery layer (31) includes three battery cells (20), the three battery cells (20) are respectively disposed in the three receiving protrusions (11) and each of them is provided with a third heating element (53) on its top.

8. The battery according to claim 1, characterized in that, The battery further includes at least two heat exchange elements, each heat exchange element having a receiving cavity for accommodating a heat exchange medium, and the at least two heat exchange elements comprising: The first heat exchanger (41) is disposed at the bottom of the housing (10), and the second heating element (52) is disposed between the first heat exchanger (41) and the bottom battery layer (30) of at least two battery layers (30). The two sides of the second heating element (52) are respectively attached to the first heat exchanger (41) and the battery layer (30). The second heat exchanger (42) is disposed inside the housing (10). The second heat exchanger (42) is disposed between the first heating element (51) and the battery layer (30) located above it. The two sides of the second heat exchanger (42) are respectively attached to the first heating element (51) and the battery layer (30). The heat exchanger's accommodating cavity is used to accommodate a cooling medium or a heating medium, so that the heat exchanger can cool or heat at least two battery layers (30).

9. The battery according to claim 1, characterized in that, The heating element is bonded together.

10. A vehicle, comprising a battery, characterized in that, The battery is the battery according to any one of claims 1 to 9.

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