Battery device and electric equipment
By introducing a current collector in the deformation zone into the battery device, the impact force of the collision is absorbed, which solves the problem that the heat exchange plate is easily damaged by vibration or collision, and ensures the stability and performance of the battery device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-08
- Publication Date
- 2026-03-24
AI Technical Summary
When the battery device is subjected to vibration or impact in the working environment, the heat exchange plate is prone to deformation or damage, which affects its performance.
A battery device is designed in which the heat exchange component includes a heat exchange plate, a current collector, and an interface component. The current collector contains a deformation region that can deform under stress to absorb impact forces and thus protect the heat exchange plate.
It effectively absorbs impact forces, prevents damage to the heat exchange plate, and ensures the stable operation of the battery device.
Smart Images
Figure CN224036547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of battery, in particular to a battery device and an electric equipment. BACKGROUND
[0002] At present, the battery device generates heat during work, and the heat needs to be exchanged and discharged in time to avoid affecting the performance of the battery device. In addition, too low temperature of the battery device also affects its performance.
[0003] In the related art, in order to adjust the temperature inside the battery device, a heat exchange plate for heat exchange can be arranged to exchange heat with the battery monomer in the battery device. The heat exchange plate is generally a metal plate with a medium flow channel, and a heat exchange medium is circulated inside.
[0004] However, after the battery device is installed in the electric equipment, the working environment may be shaken or collided, and the collision is easy to hit the heat exchange plate, causing the heat exchange plate to be deformed, even to leak liquid, and affecting the performance of the battery device. SUMMARY
[0005] The present application provides a battery device and an electric equipment, which can absorb the collision of the heat exchange plate and avoid damage to the heat exchange plate.
[0006] The first aspect of the present application provides a battery device, comprising a box body, a battery monomer, and a heat exchange assembly, wherein the battery monomer is accommodated in the box body; the heat exchange assembly is arranged in the box body, and the heat exchange assembly comprises a heat exchange plate, a current collector, and an interface piece, the heat exchange plate is provided with a heat exchange channel, the heat exchange plate exchanges heat with a large face of the battery monomer, the current collector is arranged at an end of the heat exchange plate in the length direction, and is connected with the interface piece, the heat exchange channel of the heat exchange plate is communicated with the interface piece through the current collector, the interface piece is used for communicating a heat exchange medium, the current collector at least comprises a deformation region, and the deformation region can be deformed when subjected to stress; the current collector comprises a first connecting part and a second connecting part, the first connecting part is connected with the heat exchange plate, the second connecting part is connected with the interface piece, and at least one of the first connecting part and the second connecting part comprises the deformation region.
[0007] The battery device provided in the application, the heat exchange assembly comprises a heat exchange plate, a current collector and an interface piece, wherein the heat exchange plate is internally provided with a heat exchange channel, the heat exchange plate exchanges heat with a large face of a battery monomer, the current collector is arranged at an end of the heat exchange plate in the length direction of the heat exchange plate and is connected with the interface piece, the heat exchange channel of the heat exchange plate is communicated with the interface piece through the current collector, and the interface piece is used for communicating a heat exchange medium. Since the current collector at least comprises a deformation region and the deformation region can be deformed when being stressed, the interface piece transmits the force to the heat exchange plate when being stressed. Thus, when the battery device is impacted, the interface piece is generally impacted first. Since the interface piece and the heat exchange plate are connected through the current collector, the impact force received by the interface piece is first transmitted to the current collector. The deformation region in the current collector can be deformed when being stressed, thereby absorbing part or all of the impact force. Thus, the impact force transmitted to the heat exchange plate by the current collector is very small or even zero, thereby greatly reducing the damage to the heat exchange plate. That is, the impact on the heat exchange plate can be absorbed, and the heat exchange plate can be prevented from being damaged.
[0008] Moreover, the current collector can be divided into a first connecting part for connecting the heat exchange plate and a second connecting part for connecting the interface piece. On this basis, either the first connecting part or the second connecting part can be provided with a deformation region, or both the first connecting part and the second connecting part are provided with deformation regions.
[0009] In some embodiments of the application, the deformation region of the current collector is at least partially located on the line between the interface piece and the heat exchange plate in the direction from the interface piece to the heat exchange plate.
[0010] Here, the direct region for transmitting the stress between the interface piece and the heat exchange plate in the current collector is provided as the deformation region, and the effect of absorbing the impact is better. Therefore, the deformation region is located within the range between the interface piece and the heat exchange plate.
[0011] In some embodiments of the application, the first connecting part is sleeved on the end of the heat exchange plate, and the first connecting part comprises a part outside the end of the heat exchange plate in the length direction of the heat exchange plate, and the part is internally provided with a deformation region.
[0012] Here, the first connecting part can be sleeved with the end of the heat exchange plate. In addition to the part sleeved with the heat exchange plate, the first connecting part can have a part outside the end of the heat exchange plate, and the part can be provided with a deformation region, which does not affect the connection of the heat exchange plate and can have a wider arrangement diameter for easy arrangement.
[0013] In some embodiments of the application, the first connecting part comprises a sleeving section and a deformation section connected with each other, the sleeving section is sleeved on the end of the heat exchange plate, the deformation section extends outwardly along the length direction of the heat exchange plate to form a deformation region with a preset thickness.
[0014] Here, the first connecting part comprises a socket end for socket connection and a deformation section for deformation, wherein the deformation section is entirely made of elastic material, i.e., the deformation section is a deformation region. The deformation region has a preset thickness, which is greater than the thickness required for socket connection and is a region with deformation capacity added after the socket section.
[0015] In some embodiments of the present application, the interface piece comprises an inlet pipe and an outlet pipe, both of which are detachably connected with the current collector.
[0016] Here, the interface piece can be detachably connected with the current collector, facilitating process manufacturing and assembly. Moreover, the interface piece itself can also be divided into two parts for manufacturing and assembly, for example, the interface piece can comprise an inlet pipe and an outlet pipe.
[0017] In some embodiments of the present application, the current collector is provided with two annular sealing grooves corresponding to the inlet pipe and the outlet pipe, and the inlet pipe and the outlet pipe each have a flange, and the flanges of the inlet pipe and the outlet pipe are respectively sealingly connected with one annular sealing groove.
[0018] Here, in order to improve the connection and sealing between the current collector made of elastic material and the interface piece made of rigid material, annular sealing grooves are arranged at corresponding positions of the current collector, and the flanges of the inlet pipe and the outlet pipe are sealingly connected with the corresponding annular sealing grooves, thereby improving the connection strength and sealing effect.
[0019] In some embodiments of the present application, the connecting end of the interface piece is injection molded and covered inside the current collector to connect the current collector with the interface piece.
[0020] Here, the interface piece and the current collector can be connected in the way of insert injection molding, i.e., the current collector is injection molded at the connecting section of the rigid interface piece, and the connecting section of the interface piece is covered inside the current collector to connect the current collector with the interface piece. Therefore, production and manufacturing are facilitated, and molding is facilitated.
[0021] In some embodiments of the present application, the current collector comprises a first annular connecting plate, a second annular connecting plate, and a rib plate, the first annular connecting plate and the second annular connecting plate are arranged at intervals for connecting the interface piece, and the rib plate is connected between the first annular connecting plate and the second annular connecting plate for supporting the first annular connecting plate and the second annular connecting plate.
[0022] The line connecting the center axis of the first annular connecting plate and the rib plate has an included angle with the length direction of the heat exchange plate.
[0023] Here, since the collision generally comes from the length direction of the heat exchange plate, in order to further enhance the deformation absorption capacity in the length direction of the heat exchange plate, the length direction of the rib plate and the heat exchange plate is staggered, i.e., the rib plate with higher strength avoids being arranged in the length direction of the heat exchange plate, further improving the deformation capacity of the current collector.
[0024] The second aspect of the application provides a battery device for providing electric energy.
[0025] The battery device provided by the application has the same technical effects as the second aspect of the battery device, that is, the battery device can absorb the collision with the heat exchange plate and avoid damage to the heat exchange plate. BRIEF DESCRIPTION OF DRAWINGS
[0026] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings required to be used in the embodiments or prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.
[0028] Figure 1 The structure schematic diagram of the electric device of the embodiment of the application is a vehicle;
[0029] Figure 2 The structure schematic diagram of the battery device of the embodiment of the application is a vehicle;
[0030] Figure 3 The structure schematic diagram of the heat exchange assembly of the battery device of the embodiment of the application is one of the structure schematic diagrams;
[0031] Figure 4 The structure schematic diagram of the heat exchange assembly of the battery device of the embodiment of the application is another of the structure schematic diagrams;
[0032] Figure 5 The top view structure schematic diagram of the heat exchange assembly of the battery device of the embodiment of the application is a vehicle;
[0033] Figure 6 The structure schematic diagram of the heat exchange assembly of the battery device of the embodiment of the application is one of the structure schematic diagrams; Figure 5 The cross-sectional structure schematic diagram of A-A of the heat exchange assembly of the battery device of the embodiment of the application is a vehicle;
[0034] Figure 7 The exploded structure schematic diagram of the current collector and the interface of the heat exchange assembly of the battery device of the embodiment of the application is one of the exploded structure schematic diagrams;
[0035] Figure 8 The exploded structure schematic diagram of the current collector and the interface of the heat exchange assembly of the battery device of the embodiment of the application is another of the exploded structure schematic diagrams;
[0036] Figure 9 The structure schematic diagram of the heat exchange assembly of the battery device of the embodiment of the application is one of the structure schematic diagrams.
[0037] REFERENCE SIGNS
[0038] 1000 - electrical equipment; 100 - battery device; 200 - controller; 300 - motor; 110 - box body; 111 - first box body part; 112 - second box body part; 120 - battery cell; 1 - heat exchange assembly; 11 - heat exchange plate; 12 - current collector; 121 - first connecting part; 1211 - sleeving section; 1212 - deformation section; 122 - second connecting part; 1221 - first annular connecting plate; 1222 - second annular connecting plate; 1223 - annular sealing groove; 1224 - rib plate; 13 - interface piece; 131 - inlet pipe; 132 - outlet pipe; 1311 - flange. DETAILED DESCRIPTION
[0039] In order to enable every intended person to understand the above-mentioned purposes, features and advantages of the present application more clearly, the schemes of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0040] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present application, and not all the embodiments.
[0041] Unless otherwise defined, 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 belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover not exclusive inclusion.
[0042] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.
[0043] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0044] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.
[0045] In the description of the embodiments of the present application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, operate or be used in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0046] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0047] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, which can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.
[0048] In the following, the present application will be described in detail.
[0049] In the battery device in the related art, the battery monomers can be arranged together in one direction, and the heat exchange plate is generally arranged below the battery monomers, and the heat exchange plate has a circulating flow channel inside.
[0050] Since the heat exchange plate is generally made of rigid material, for example, the heat exchange plate can be a metal plate with a medium flow channel, and a heat exchange medium circulates inside. When the battery device is subjected to jolt or impact, the rigid heat exchange plate may be deformed, even leaking and damaged, thereby affecting the performance of the battery device.
[0051] The embodiments of the present application disclose a battery device 100 and a power utilization equipment 1000, which can absorb the impact on the heat exchange plate and avoid damage to the heat exchange plate.
[0052] The power consuming device 1000 disclosed in the embodiments of the present application can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric vehicle, a vehicle, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, an electric plane toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc.
[0053] The battery apparatus 100 disclosed in the embodiments of the present application can be used in a power consuming device 1000 using a battery as a power source, or a power storage device using a battery as a power storage device, wherein the power storage device includes a power storage container, a power storage cabinet, etc.
[0054] In the following embodiments, for the convenience of description, the power consuming device 1000 of an embodiment of the present application is taken as an example to be described as a vehicle.
[0055] Figure 1 The structural schematic diagram of the vehicle is provided for some embodiments of the present application. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. As shown in the figure, the vehicle is internally provided with a battery apparatus 100, which can be arranged at the bottom, the head or the tail of the vehicle. The battery apparatus 100 can be used for power supply of the vehicle, for example, the battery apparatus 100 can be used as an operating power source of the vehicle. The vehicle can further include a controller 200 and a motor 300, and the controller 200 is used to control the battery apparatus 100 to supply power to the motor 300, for example, to meet the working power demand of the vehicle during starting, navigation and driving. Figure 1
[0056] In some embodiments of the present application, the battery apparatus 100 can not only be used as an operating power source of the vehicle, but also be used as a driving power source of the vehicle, to replace or partially replace fuel or natural gas to provide driving power for the vehicle.
[0057] Figure 2 The explosion schematic diagram of the battery apparatus 100 is provided for some embodiments of the present application. The battery apparatus 100 mentioned in the embodiments of the present application can further include one or more battery cell 120 assemblies (not shown in the figure, please refer to the combination of multiple battery cells 120) for providing voltage and capacity. The battery cell 120 assembly can include multiple battery cells 120, and the multiple battery cells 120 are connected in series, in parallel or in a mixed manner through a busbar component.
[0058] In some embodiments, the battery cell 120 assembly is usually formed by arranging multiple battery cells 120.
[0059] As an example, the battery cell 120 assembly can be a battery module, which is formed by arranging and fixing a plurality of battery cells 120.
[0060] As an example, the battery module can be formed by bundling a plurality of battery cells 120 by a cable tie.
[0061] In some embodiments, as shown in FIG. 1, the battery device 100 can be a battery pack, which includes a case 110 and one or more battery cell 120 assemblies, which are accommodated in the cavity. Figure 2
[0062] As an example, the battery cell 120 assembly can be a battery module, which is accommodated in the cavity by fixing the battery module in the cavity.
[0063] As an example, the battery cell 120 assembly can also be accommodated in the cavity by directly fixing a plurality of battery cells 120 in the cavity.
[0064] As an example, as shown in FIG. 1, the case 110 can include a first case 110 part and a second case 110 part. The first case 110 part and the second case 110 part are buckled to form a closed space, i.e., a cavity, inside the case 110 to accommodate the battery cell 120 assembly. Here, closed means covered or closed, which can be sealed or unsealed. The first case 110 part can be a top cover or a bottom plate. Figure 2
[0065] In some embodiments, the case 110 can be part of the chassis structure of the vehicle. For example, part of the case 110 can be at least part of the floor of the vehicle, or part of the case 110 can be at least part of the cross beam and the longitudinal beam of the vehicle.
[0066] In the embodiments of the present application, the battery cell 120 can be a secondary battery, which means that the battery cell 120 can be activated by charging after discharging to continue to be used.
[0067] The battery cell 120 can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc., which are not limited in the embodiments of the present application.
[0068] In addition, the battery cell 120 may, for example, be a cylindrical battery cell 120, a prismatic battery cell 120, a soft-pack battery cell 120, or a battery cell 120 of another shape, the prismatic battery cell 120 including a square battery cell 120, a blade battery cell 120, a multi-prismatic battery cell 120, for example, a hexagonal battery cell 120, and the like, and the embodiments of the present application are not particularly limited.
[0069] The embodiments of the present application provide a battery device, referring to Figure 3 、 Figure 4 and Figure 5 , including a box, a battery cell, a heat exchange assembly 1, wherein the battery cell is accommodated in the box; the heat exchange assembly 1 is arranged in the box, and the heat exchange assembly 1 includes a heat exchange plate 11, a current collector 12, and an interface piece 13, the heat exchange plate 11 is internally provided with a heat exchange channel, the heat exchange plate 11 exchanges heat with a large face of the battery cell 120, the current collector 12 is arranged at an end of the heat exchange plate 11 in the length direction, and is connected with the interface piece 13, the heat exchange channel of the heat exchange plate 11 is communicated with the interface piece 13 through the current collector 12, the interface piece 13 is used for communicating a heat exchange medium, and the current collector 12 at least includes a deformation area which can be deformed when subjected to a force.
[0070] In the embodiments, the heat exchange assembly 1 refers to a combination of a series of components for heat exchange arranged in the battery device. The heat exchange assembly 1 can include the heat exchange plate 11, the current collector 12, the interface piece 13, and the like.
[0071] The heat exchange plate 11 refers to a component for directly exchanging heat with the battery cell 120. The heat exchange plate 11 can be internally provided with a flow channel for medium circulation, i.e., a heat exchange channel, and the heat exchange channel can circulate and flow through a heat exchange medium. The heat exchange plate 11 can be in contact with the battery cell, and can be arranged at a large face of the battery cell 120 for heat exchange with the battery cell 120. In addition, the heat exchange between the heat exchange plate 11 and the battery cell 120 can be cooling or heating of the battery cell 120. The heat exchange plate 11 can have multiple heat exchange channels inside, which can be in the form of a harmonica tube.
[0072] The current collector 12 refers to a component arranged at an end of the heat exchange plate 11, used for collecting multiple flow channels in the heat exchange plate 11, and communicating the flow channels of the heat exchange plate 11 with the interface piece 13, so as to ultimately realize communication between the multiple flow channels in the heat exchange plate 11 and a medium circulation loop.
[0073] The interface piece 13 refers to a connecting piece for connecting the current collector 12 and the medium circulation loop, which can be a pipeline interface or the like.
[0074] The heat exchange plate 11 exchanges heat with the large face of the battery monomer 120, which means that the heat exchange plate 11 can be arranged at the large face of the battery monomer 120 in the battery device, and the two ends can extend out of the battery device to communicate with the heat exchange medium through the current collector 12 and the interface piece 13. In some embodiments, the battery monomer 120 is multiple, arranged in the box 110, and the heat exchange plate 11 can extend in the horizontal direction and be located between two adjacent battery monomers 120.
[0075] The current collector 12 is connected with the interface piece 13, and the interface piece 13 is used to communicate with the heat exchange medium. The connection of the current collector 12 and the interface piece 13 includes fixed connection and internal pipeline communication, that is, the current collector 12 and the interface piece 13 are fixedly connected together, and the channel inside the current collector 12 and the channel inside the interface piece 13 are connected in correspondence.
[0076] The heat exchange medium refers to the medium that can flow in the flow channel of the heat exchange assembly 1 and exchange heat with the battery monomer 120. The heat exchange medium can be air, liquid, such as water, ethylene glycol mixed liquid, etc.
[0077] The deformation region refers to a region that has the ability to deform, which makes itself deform when subjected to force, at least absorbs a part of the force, thereby reducing the stress of the components at the back end of the force transmission and reducing damage.
[0078] The deformation region can be made of elastic material, for example, it can be injection molded by rubber, plastic, etc., or it can be a spring, etc. formed by metal, alloy, etc.
[0079] The deformation region can be flexible, and its elongation at break can be in the range of 5%-800%, such as 500%, 600%, etc. At the same time, the structural strength parameter range of the deformation region can be 1-100 Mpa, for example, 1-2 Mpa of the elastomer, or 4-50 Mpa of the enhanced strength, etc.
[0080] The current collector 12 at least includes a deformation region, which means that the current collector 12 can be a whole deformation region, or only a part of the deformation region. In the embodiment in which a part of the current collector 12 is a deformation region, the current collector 12 can have one deformation region, or two or more deformation regions, and the position and size of the deformation region can be set according to actual needs.
[0081] The battery device provided in the application, the heat exchange assembly 1 comprises a heat exchange plate 11, a current collector 12 and an interface piece 13, wherein the heat exchange plate 11 exchanges heat with a large face of a battery monomer 120, the current collector 12 is connected with the interface piece 13, a heat exchange channel of the heat exchange plate 11 is communicated with the interface piece 13 through the current collector 12, and the interface piece 13 is used for communicating a heat exchange medium. Since the current collector 12 at least comprises a deformation region, and the deformation region can be deformed when being stressed, when the interface piece 13 is stressed, the force is transmitted to the heat exchange plate 11 along a first direction, and the deformation region is arranged at least on a path of the current collector 12 along the first direction. In this way, when the battery device is collided, the interface piece 13 is generally impacted first, since the interface piece 13 and the heat exchange plate 11 are connected through the current collector 12, the impact force received by the interface piece 13 is transmitted to the current collector 12 first, the deformation region in the current collector 12 can be deformed when being stressed, thereby absorbing part or all of the impact force, and then the impact force transmitted to the heat exchange plate 11 by the current collector 12 is very small or even zero, thereby greatly reducing the damage to the heat exchange plate 11. That is, the collision to the heat exchange plate 11 can be absorbed, and the heat exchange plate 11 is prevented from being damaged.
[0082] It should be noted that in some embodiments, the heat exchange plate 11 is arranged along the arrangement direction of the battery monomer 120, and water inlet and outlet structures are arranged on both sides of the battery device. In this way, the heat exchange plate 11 extends out of the battery monomer 120 at both ends along the arrangement direction of the battery monomer 120 for convenient connection, and the part extending out of the heat exchange plate 11 further comprises the current collector 12 and the interface piece 13. On this basis, when the battery device is jolted or collided, the both ends of the heat exchange plate 11 are easily collided, causing the heat exchange plate 11 to be deformed, leak liquid or be damaged. That is, the current collector 12 and the interface piece 13 are relatively easy to be collided.
[0083] For the convenience of description, a first direction can be defined, when the interface piece 13 is stressed, the force is transmitted to the heat exchange plate 11 along the first direction, and the deformation region is arranged at least on a path of the current collector 12 along the first direction.
[0084] In this way, when the interface piece 13 is collided, the force generated and transmitted to the heat exchange plate 11 has a direction, which is defined as the first direction. It should be noted that when the interface piece 13 is stressed, the position of the interface piece 13 stressed (that is, the position collided) is connected to the heat exchange plate 11, and the connection line can be multiple, wherein the shortest line segment is the most direct force transmission, the first direction can be the direction of the straight line where the line segment is located, wherein the force transmission is the shortest in the direction of the straight line where the line segment is located, and the maximum can be the direction of the straight line where the line segment is located. On this basis, the deformation region is arranged at least on the path of the current collector 12 along the first direction, and can directly absorb the force generated by the collision in the force transmission direction.
[0085] Since the collision damage that the heat exchange plate 11 can suffer is probably from both ends of the heat exchange plate 11, in order to more accurately reduce the damage to the heat exchange plate 11 caused by the jolt or collision of the battery device, in some embodiments of the present application, at least part of the deformation region of the current collector 12 is located on the line between the interface piece 13 and the heat exchange plate 11 in the direction of the interface piece 13 to the heat exchange plate 11.
[0086] That is, on the premise that the first direction can be the direction of the interface piece 13 to the heat exchange plate 11, at least part of the deformation region of the current collector 12 is located in the first direction between the interface piece 13 and the heat exchange plate 11.
[0087] In the present embodiment, in the first direction, it means in the transmission direction of the force that can be transmitted to the heat exchange plate 11 through the interface piece 13, which can be understood as the line from the interface piece 13 to the heat exchange plate 11, which can be coincident with the length direction of the heat exchange plate 11, but the direction is from the interface piece 13 to the heat exchange plate 11. This direction is the transmission direction of the force, which can be one direction or multiple directions, including the force that can be transmitted to the heat exchange plate 11 from various angles.
[0088] The deformation region of the current collector 12 between the interface piece 13 and the heat exchange plate 11 means that the deformation region is on the transmission path of the force transmitted by the interface piece 13 to the heat exchange plate 11, and can directly absorb the force, so that the shock absorption effect is better.
[0089] Here, the direct region of the current collector 12 for transmitting the force between the interface piece 13 and the heat exchange plate 11 is set as the deformation region, so that the effect of absorbing the collision is better. Therefore, the deformation region is located within the range between the interface piece 13 and the heat exchange plate 11.
[0090] In order to facilitate description, the current collector 12 will be divided into two parts to explain the scheme below, it should be noted that the current collector 12 can be integrally formed, and the division into two parts here is only for the purpose of description, and the current collector 12 is not divided into two parts.
[0091] In some embodiments of the present application, referring to Figure 5 and Figure 6 , the current collector 12 includes a first connecting part 121 and a second connecting part 122, the first connecting part 121 is connected with the heat exchange plate 11, the second connecting part 122 is connected with the interface piece 13, and at least one of the first connecting part 121 and the second connecting part 122 includes a deformation region.
[0092] The first connecting part 121 is connected with the heat exchange plate 11, and the second connecting part 122 is connected with the interface piece 13, wherein the connection means fixed connection while the internal medium flow channel is communicated.
[0093] At least one of the first connecting part 121 and the second connecting part 122 comprises a deformation region, which means that only the first connecting part 121 can comprise the deformation region, only the second connecting part 122 can comprise the deformation region, or both the first connecting part 121 and the second connecting part 122 can comprise the deformation region. The deformation region means that a part or all of the deformation region can be included.
[0094] Here, the current collector 12 can be divided into a first connecting part 121 for connecting the heat exchange plate 11 and a second connecting part 122 for connecting the interface piece 13. On this basis, either the first connecting part 121 or the second connecting part 122 can be provided with a deformation region, or both the first connecting part 121 and the second connecting part 122 can be provided with a deformation region. That is, the position and size of the deformation region can be flexibly set according to actual needs.
[0095] In some embodiments of the present application, the first connecting part 121 is sleeved on the end of the heat exchange plate 11, and the first connecting part 121 comprises a part outside the end of the heat exchange plate 11 along the length direction of the heat exchange plate 11, and the part is provided with a deformation region.
[0096] The part of the first connecting part 121 outside the end of the heat exchange plate 11 means that the first connecting part 121 comprises a part connected with the heat exchange plate 11 and a part outside the end of the heat exchange plate 11, and the part can completely protect the end of the heat exchange plate 11. Therefore, the deformation region in the part can improve the effect of protecting the heat exchange plate 11.
[0097] Here, the first connecting part 121 can be sleeved on the end of the heat exchange plate 11, and the first connecting part 121 can have a part outside the end of the heat exchange plate 11 in addition to the part sleeved on the heat exchange plate 11, and the part can be provided with a deformation region, which does not affect the connection of the heat exchange plate 11 and can have a wider arrangement diameter for easy setting.
[0098] In some embodiments of the present application, the first connecting part 121 comprises a sleeving segment 1211 and a deformation segment 1212 connected with each other, the sleeving segment 1211 is sleeved on the end of the heat exchange plate 11, the deformation segment 1212 extends outwardly along the length direction of the heat exchange plate 11 to form a deformation region with a preset thickness.
[0099] The deformation segment 1212 forms a deformation region with a preset thickness, which means that the deformation segment 1212 is provided with a deformation region with a preset thickness, and the thickness meets the buffering needs.
[0100] Here, the first connecting part 121 includes a sleeving end for sleeving and a deformation section 1212 for deformation, wherein the deformation section 1212 is entirely made of elastic material, that is, the deformation section 1212 is a deformation region. The deformation region has a preset thickness, which is greater than the thickness required for sleeving and is a region with deformation capability added after the sleeving section 1211.
[0101] In some embodiments of the present application, the second connecting part 122 can be entirely a deformation region. That is, the entire second connecting part 122 is a deformation region. In this way, the entire second connecting part 122 can be integrally formed of elastic material.
[0102] The fixing of the interface piece 13 and the current collector 12 can be non-detachable fixing or detachable fixing. For example, bonding, welding, overmolding, clamping, fastener connection, etc.
[0103] Here, the second connecting part 122 can be made of elastic material, and the second connecting part 122 can be entirely a deformation region, which can absorb the force of collision and avoid damage to the heat exchange plate 11. On this basis, in order to facilitate the connection of the second connecting part 122 and the interface piece 13.
[0104] In addition, the interface piece 13 and the current collector 12 are separately formed, so that the force transmission is more dispersed and more helpful to reduce the effect of force.
[0105] In some embodiments of the present application, with reference to Figure 6 , Figure 7 and Figure 8 , the interface piece 13 includes an inlet pipe 131 and an outlet pipe 132, and the inlet pipe 131 and the outlet pipe 132 are detachably connected with a current collector 12.
[0106] The interface piece 13 includes an inlet pipe 131 and an outlet pipe 132, which means that the interface piece 13 can be divided into two pipe connections, so that one is the inlet of the heat exchange medium and the other is the outlet of the heat exchange medium. The inlet pipe 131 and the outlet pipe 132 can be two circular pipes with interfaces that can be connected to other structures.
[0107] Here, the interface piece 13 can be detachably connected with the current collector 12, which is convenient for process manufacturing and assembly. Moreover, the interface piece 13 itself can also be divided into two parts for manufacturing and assembly, for example, the interface piece 13 can include an inlet pipe 131 and an outlet pipe 132.
[0108] In some embodiments of the present application, the current collector 12 is provided with two annular sealing grooves 1223 corresponding to the inlet pipe 131 and the outlet pipe 132, and the inlet pipe 131 and the outlet pipe 132 each have a flange 1311, and the flanges 1311 of the inlet pipe 131 and the outlet pipe 132 are respectively sealingly clamped with an annular sealing groove 1223.
[0109] The annular sealing groove 1223 refers to a groove formed on the current collector 12 and having a sealing effect. The sealing effect can be achieved by interference fit with the flange 1311 of the inlet pipe 131 and the outlet pipe 132, or by applying sealant or adding a gasket. It should be noted that in the case where the second connecting portion 122 is made of an elastic material, the annular sealing groove 1223 is also formed of an elastic material, and the annular sealing groove 1223 with elasticity can also form a good sealing effect with the flange 1311 due to its deformation capability.
[0110] The flange 1311 of the inlet pipe 131 and the outlet pipe 132 refers to an annular protrusion formed on the end of the inlet pipe 131 and the outlet pipe 132 and extending in the radial direction thereof, which can be adaptively connected with the annular sealing groove 1223.
[0111] The flange 1311 is connected with the annular sealing groove 1223, which means that the flange 1311 is adaptively connected with the annular sealing groove 1223, and the connection is detachable. In addition, fasteners, sealant, etc. can be further added.
[0112] Here, in order to improve the connection and sealing between the current collector 12 made of an elastic material and the interface piece 13 made of a rigid material, the annular sealing groove 1223 is arranged on the current collector 12, and the flange 1311 of the inlet pipe 131 and the outlet pipe 132 is sealingly connected with the corresponding annular sealing groove 1223, thereby improving the connection strength and sealing effect.
[0113] In order to make the connection between the interface piece 13 and the current collector 12 firm and ensure the sealing effect, the connection can be achieved by process injection molding. In some embodiments of the present application, the structure of the interface piece 13 and the current collector 12 can be that the connecting end of the interface piece 13 is injection molded inside the current collector 12 to connect the current collector 12 and the interface piece 13.
[0114] The connecting end of the interface piece 13 is injection molded inside the current collector 12, which means that the current collector 12 is formed by injection molding at the connecting section of the interface piece 13. After injection molding is completed, the interface piece 13 and the current collector 12 are connected as a whole.
[0115] Here, the interface piece 13 and the current collector 12 can be connected in the way of insert injection molding, that is, the current collector 12 is injection molded at the connecting section of the rigid interface piece 13, and the connecting section of the interface piece 13 is covered inside the current collector 12. Therefore, it is convenient for production and manufacturing, and convenient for molding.
[0116] In some embodiments of the present application, with reference to Figure 9The current collector 12 comprises a first annular connecting plate 1221, a second annular connecting plate 1222 and a rib plate 1224, the first annular connecting plate 1221 and the second annular connecting plate 1222 are arranged at intervals and used for connecting the interface piece 13; the rib plate 1224 is connected between the first annular connecting plate 1221 and the second annular connecting plate 1222 and used for supporting the first annular connecting plate 1221 and the second annular connecting plate 1222.
[0117] The line connecting the rib plate 1224 and the central axis of the first annular connecting plate 1221 has an included angle with the length direction of the heat exchange plate 11.
[0118] The first annular connecting plate 1221 and the second annular connecting plate 1222 are formed in the middle part of the current collector 12 and have a ring-shaped structure.
[0119] The line connecting the rib plate 1224 and the central axis of the first annular connecting plate 1221 refers to the line connecting the rib plate 1224 and the geometric central axis of the first annular connecting plate 1221 and the second annular connecting plate 1222.
[0120] The line connecting the rib plate 1224 and the center of the first annular connecting plate 1221 has an included angle with the length direction of the heat exchange plate 11, which means that the rib plate 1224 avoids the core area along the length direction of the heat exchange plate 11. The angle of the included angle can be any angle greater than 0 degrees, that is, the line connecting the rib plate 1224 and the center of the annular sealing groove 1223 is different from the length direction of the heat exchange plate 11, or it can be said that they are not collinear.
[0121] Here, since the collision generally comes from the length direction of the heat exchange plate 11, in order to further enhance the deformation absorption capacity along the length direction of the heat exchange plate 11, the length direction of the rib plate 1224 and the heat exchange plate 11 is staggered, that is, the rib plate 1224 with higher strength avoids being arranged along the length direction of the heat exchange plate 11, further improving the deformation capacity of the current collector 12.
[0122] In some embodiments of the present application, referring to Figure 9 The line connecting the rib plate 1224 and the central axis of the first annular connecting plate 1221 is perpendicular to the length direction of the heat exchange plate 11, and the rib plate 1224 is two, which are respectively located on both sides along the length direction of the heat exchange plate 11.
[0123] The two rib plates 1224 are located on both sides along the length direction of the heat exchange plate 11, which means that in the length direction of the heat exchange plate 11, the two rib plates 1224 are on both sides rather than front and back. That is, they are arranged on both sides and provide support on both sides, achieving certain strength requirements, and being staggered along the length direction of the heat exchange plate 11 to avoid affecting the deformation capacity of the current collector 12 and not affecting the effect of the absorption force.
[0124] Here, two ribs 1224 are arranged on both sides along the length direction of the heat exchange plate 11, and on the basis of improving the deformation ability of the current collector 12, sufficient overall strength of the current collector 12 is also provided.
[0125] In some embodiments of the present application, the heat exchange plate 11 is made of an elastic material, and the heat exchange plate 11 can be deformed when subjected to force.
[0126] Here, the heat exchange plate 11 itself can also be made of an elastic material, and further, the heat exchange plate 11 itself can also be deformed when subjected to force, so as to reduce the damage caused by the collision. The present application also provides an electric device 1000 comprising the above-mentioned battery device 100 for providing electric energy.
[0127] The battery device 100 provided by the present application has the same technical effects as the battery device 100 of the above-mentioned embodiments, i.e., the collision on the heat exchange plate can be absorbed, and the heat exchange plate can be prevented from being damaged.
[0128] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A battery device, characterized by, The battery device comprises: a box body; a battery cell accommodated in the box body; a heat exchange assembly arranged in the box body, the heat exchange assembly comprising a heat exchange plate, a current collector and an interface, the heat exchange plate being provided with a heat exchange channel, the heat exchange plate being in heat exchange with a large face of the battery cell, the current collector being arranged at an end of the heat exchange plate in a length direction of the heat exchange plate and connected with the interface, the heat exchange channel of the heat exchange plate being communicated with the interface through the current collector, the interface being used for communicating a heat exchange medium, the current collector comprising at least a deformation region, the deformation region being capable of deforming when subjected to a force; the current collector comprising a first connecting portion and a second connecting portion, the first connecting portion being connected with the heat exchange plate, the second connecting portion being connected with the interface, at least one of the first connecting portion and the second connecting portion comprising the deformation region.
2. The battery device according to claim 1, characterized by The deformation region of the current collector is at least partially located on a line connecting the interface and the heat exchange plate.
3. The battery device of claim 1, wherein The first connecting portion is sleeved at the end of the heat exchange plate, and in the length direction of the heat exchange plate, the first connecting portion comprises a portion located outside the end of the heat exchange plate, the portion being provided with the deformation region.
4. The battery device of claim 3, wherein The first connecting portion comprises a sleeving segment and a deformation segment connected with each other, the sleeving segment being sleeved at the end of the heat exchange plate, the deformation segment extending outwardly from the heat exchange plate in the length direction of the heat exchange plate to form the deformation region with a preset thickness.
5. The battery device according to any one of claims 1 to 4, wherein The interface comprises an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe being detachably connected with the current collector.
6. The battery device of claim 5, wherein, The current collector is provided with two annular sealing grooves corresponding to the inlet pipe and the outlet pipe, the inlet pipe and the outlet pipe each having a flange, the flanges of the inlet pipe and the outlet pipe being sealingly connected with one of the annular sealing grooves.
7. The battery device according to any one of claims 1 to 4, wherein A connecting end of the interface is injection-molded and covered by the current collector to connect the current collector with the interface.
8. The battery device according to any one of claims 1 to 4, wherein The current collector comprises a first annular connecting plate, a second annular connecting plate and a rib plate, the first annular connecting plate and the second annular connecting plate being arranged at intervals and used for connecting the interface, the rib plate being connected between the first annular connecting plate and the second annular connecting plate and used for supporting the first annular connecting plate and the second annular connecting plate. A line connecting the center axis of the first annular connecting plate with the second annular connecting plate and the length direction of the heat exchange plate has an included angle.
9. An electric device, characterized by The battery device is used for providing electric energy.