Battery structure and electric device

Abstract

The application relates to the new energy technology field, in particular to a battery structure and an electric equipment. The battery structure comprises a tray, a battery module, a pressing mechanism, a detection piece and a controller, the battery module and the pressing mechanism are arranged in the tray, and the pressing mechanism is used for abutting against the battery module. The detection piece is arranged between the pressing mechanism and the battery module, and is used for detecting the pressure between the pressing mechanism and the battery module. When the pressure detected by the detection piece is greater than a preset pressure, the controller controls the pressing mechanism to move away from the battery module; and when the pressure detected by the detection piece is less than the preset pressure, the controller controls the pressing mechanism to move towards the battery module. The battery structure and the electric equipment provided by the application can provide a pre-tightening force for the battery module, and the anti-expansion capability of the battery structure is improved.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a battery structure and electrical equipment. Background Technology

[0002] New energy batteries are an important component of electric vehicles, used to power them.

[0003] In existing technology, a battery includes a casing and a battery module housed within the casing. The battery module is formed by combining multiple individual battery cells in series and parallel. During charging and discharging, the individual battery cells expand. When the individual battery cells expand, they exert an expansion force on the casing, which resists the expansion force through its own structural strength.

[0004] However, when the expansion force of a single battery cell is large, it will affect the structural strength of the casing, so the existing batteries have poor resistance to expansion. Utility Model Content

[0005] This application provides a battery structure and electrical equipment that can provide pre-tightening force for the battery module and improve the battery structure's resistance to expansion.

[0006] In a first aspect, this application provides a battery structure, including: a tray, a battery module, a pressure applying mechanism, a detection element, and a controller. The battery module and the pressure applying mechanism are both disposed within the tray, and the pressure applying mechanism is used to abut against the battery module.

[0007] The detection element is placed between the pressure applying mechanism and the battery module. The detection element is used to detect the pressure between the pressure applying mechanism and the battery module.

[0008] Both the detection element and the pressure application mechanism are connected to the controller. When the pressure detected by the detection element is greater than the preset pressure, the controller controls the pressure application mechanism to move away from the battery module; when the pressure detected by the detection element is less than the preset pressure, the controller controls the pressure application mechanism to move towards the battery module.

[0009] In one possible implementation, the battery structure provided in this application includes a pressure member and at least one pressure assembly. The pressure member is used to abut against the battery module, the pressure assembly is located on the side of the pressure member away from the battery module, and the detection member abuts between the pressure assembly and the pressure member.

[0010] In one possible implementation, the battery structure provided in this application includes a pressure application component comprising a driving member and a transmission member connected to the driving member, the driving member being connected to a pressure member, and a detection member abutting between the transmission member and the pressure member.

[0011] The drive unit is connected to the controller. When the pressure detected by the detection unit is greater than the preset pressure, the controller controls the drive unit to drive the transmission unit to move away from the pressure unit; when the pressure detected by the detection unit is less than the preset pressure, the controller controls the drive unit to drive the transmission unit to move towards the pressure unit.

[0012] In one possible implementation, the battery structure provided in this application further includes a drive shaft connected to a tray.

[0013] The transmission component includes a first gear and a second gear. The first gear is mounted on the driving component, and the second gear is mounted on the driving shaft. The first gear meshes with the second gear, and the detection component abuts between the second gear and the pressure component.

[0014] In one possible implementation, the battery structure provided in this application has a drive shaft and a second gear connected by a thread.

[0015] In one possible implementation, the battery structure provided in this application further includes a reducer connected between the drive member and the first gear.

[0016] In one possible implementation, the battery structure provided in this application uses a pressure component made of one of a nickel plate, a titanium plate, a thermoplastic polyester elastomer plate, a thermoplastic polyurethane elastomer plate, and a thermoplastic vulcanized rubber plate.

[0017] In one possible implementation, the battery structure provided in this application has multiple battery modules, each battery module is arranged in parallel in a tray, and each battery module abuts against a pressure member.

[0018] In one possible implementation, the battery structure provided in this application has multiple pressure-applying components, with each pressure-applying component corresponding to a battery module on opposite sides of the pressure member.

[0019] In one possible implementation, the battery structure provided in this application also includes a connector, through which two adjacent battery modules are connected.

[0020] In one possible implementation, the battery structure provided in this application has the battery module bonded to the pressure component and the tray, respectively.

[0021] Secondly, this application also provides an electrical device, including a device body and a battery structure provided in any of the first aspects described above disposed on the device body.

[0022] The battery structure and electrical equipment provided in this application include a battery structure comprising a tray, a battery module, a pressure applying mechanism, a detection element, and a controller. Both the battery module and the pressure applying mechanism are housed within the tray. The pressure applying mechanism abuts against the battery module and can apply or release partial pressure to the battery module. The detection element abuts between the pressure applying mechanism and the battery module and can detect the pressure between them.

[0023] Both the detection element and the pressure applying mechanism are communicatively connected to the controller. When the pressure detected by the detection element exceeds a preset pressure, the controller controls the pressure applying mechanism to move away from the battery module, thereby reducing the pressure applied to the battery module and improving its anti-expansion capability. When the pressure detected by the detection element is less than the preset pressure, the controller controls the pressure applying mechanism to move towards the battery module, thereby increasing the pressure applied to the battery module and providing appropriate preload. The battery structure and electrical equipment provided in this application can provide preload to the battery module and improve the battery structure's anti-expansion capability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the battery structure provided in the embodiments of this application. Figure 1 ;

[0026] Figure 2 A schematic diagram of the battery structure provided in the embodiments of this application. Figure 2 ;

[0027] Figure 3 for Figure 2 Enlarged structural diagram of section A;

[0028] Figure 4 for Figure 3 Schematic diagram of the pressure application component;

[0029] Figure 5 A schematic diagram of the battery structure provided in the embodiments of this application. Figure 3 ;

[0030] Figure 6 for Figure 5 Enlarged structural diagram of section B.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-pallet;

[0033] 200 - Battery module; 210 - Structural adhesive;

[0034] 300 - Pressure Application Mechanism;

[0035] 310 - Pressure component;

[0036] 320 - Pressure application assembly; 321 - Drive component; 322 - Transmission component; 3221 - First gear; 3222 - Second gear; 323 - Drive shaft; 324 - Reducer;

[0037] 400 - Inspection Items;

[0038] 500-Connector.

[0039] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0040] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0041] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0044] As illustrated in the background section, in existing technologies, batteries include a casing and battery modules housed within the casing. A battery module is formed by combining multiple individual battery cells in series and parallel connections. These individual cells expand during charging and discharging. When a single cell expands, it exerts an expansion force on the casing, which resists this force through its structural strength. However, when the expansion force of a single cell is significant, it can affect the structural strength of the casing, resulting in poor anti-expansion capabilities in existing batteries.

[0045] Based on this, the battery structure and electrical equipment provided in this application include a battery structure comprising a tray, a battery module, a pressure applying mechanism, a detection element, and a controller. Both the battery module and the pressure applying mechanism are housed within the tray. The pressure applying mechanism abuts against the battery module and can apply or release partial pressure to the battery module. The detection element abuts between the pressure applying mechanism and the battery module and can detect the pressure between them.

[0046] Both the detection element and the pressure applying mechanism are communicatively connected to the controller. When the pressure detected by the detection element exceeds a preset pressure, the controller controls the pressure applying mechanism to move away from the battery module, thereby reducing the pressure applied to the battery module and improving its anti-expansion capability. When the pressure detected by the detection element is less than the preset pressure, the controller controls the pressure applying mechanism to move towards the battery module, thereby increasing the pressure applied to the battery module and providing appropriate preload. The battery structure and electrical equipment provided in this application can provide preload to the battery module and improve the battery structure's anti-expansion capability.

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0048] Reference Figure 1 and Figure 2 As shown, in a first aspect, this application provides a battery structure, including: a tray 100, a battery module 200, a pressure applying mechanism 300, a detection element 400 and a controller, wherein the battery module 200 and the pressure applying mechanism 300 are both disposed within the tray 100, and the pressure applying mechanism 300 is used to abut against the battery module 200.

[0049] The detection element 400 is placed between the pressure applying mechanism 300 and the battery module 200. The detection element 400 is used to detect the pressure between the pressure applying mechanism 300 and the battery module 200.

[0050] Both the detection element 400 and the pressure application mechanism 300 are communicatively connected to the controller. When the pressure detected by the detection element 400 is greater than the preset pressure, the controller controls the pressure application mechanism 300 to move away from the battery module 200; when the pressure detected by the detection element 400 is less than the preset pressure, the controller controls the pressure application mechanism 300 to move toward the battery module 200.

[0051] Understandably, the tray 100 provides a stable platform for housing and securing the battery module 200 and the pressure mechanism 300, allowing other components to function effectively.

[0052] It should be noted that the battery module 200 is composed of multiple individual battery cells. The battery module 200 can store and release electrical energy to power electric vehicles.

[0053] Specifically, a pressure applying mechanism 300 is disposed within the tray 100 and abuts against the battery module 200. The pressure applying mechanism 300 can apply or release partial pressure to the battery module 200. By controlling the movement of the pressure applying mechanism 300, the pressure applied to the battery module 200 can be adjusted. The contact between the pressure applying mechanism 300 and the battery module 200 can transmit pressure to the battery module 200, ensuring that the battery module 200 remains stable within the tray 100.

[0054] The detection element 400 is located between the pressure applying mechanism 300 and the battery module 200, and is used to monitor the pressure between the pressure applying mechanism 300 and the battery module 200 in real time, and transmit the pressure data to the controller. Exemplarily, the detection element 400 can be a pressure sensor, or other pressure detection device, and this application embodiment does not impose too many limitations on it.

[0055] The controller is communicatively connected to the detection element 400 and the pressure applying mechanism 300. Based on the pressure data provided by the detection element 400, the controller dynamically adjusts the position of the pressure applying mechanism 300. When the detected pressure exceeds a preset pressure, the controller instructs the pressure applying mechanism 300 to move away from the battery module 200 to reduce the pressure applied to the battery module 200, thereby improving its anti-expansion capability. When the detected pressure is less than the preset pressure, the controller instructs the pressure applying mechanism 300 to move closer to the battery module 200 to increase the pressure applied to the battery module 200, thereby providing appropriate preload. In this way, the battery structure can provide appropriate preload to the battery module 200 while improving its anti-expansion capability.

[0056] It should also be noted that the pressure applying mechanism 300 applies appropriate pressure to the battery module 200 to ensure that the battery module 200 is tightly fixed within the tray 100, reducing loosening or displacement caused by vibration or impact. When a single cell expands during charging and discharging, the detection element 400 can sense the pressure change, and the controller can adjust the position of the pressure applying mechanism 300 in a timely manner to alleviate the pressure changes caused by expansion and prevent damage to the battery structure. This dynamic adjustment mechanism ensures that the battery module 200 remains stable and safe under different operating conditions, while extending the battery's lifespan.

[0057] Understandably, in response to the poor resistance to swelling forces in existing batteries, the battery structure and electrical device provided in this application address this issue. The battery structure comprises a tray 100, a battery module 200, a pressure applying mechanism 300, a detection element 400, and a controller. Both the battery module 200 and the pressure applying mechanism 300 are housed within the tray 100. The pressure applying mechanism 300 abuts against the battery module 200 and can apply or release partial pressure to the battery module 200. The detection element 400 abuts between the pressure applying mechanism 300 and the battery module 200 and can detect the pressure between them.

[0058] Both the detection element 400 and the pressure applying mechanism 300 are communicatively connected to the controller. When the pressure detected by the detection element 400 exceeds a preset pressure, the controller controls the pressure applying mechanism 300 to move away from the battery module 200, thereby reducing the pressure applied by the pressure applying mechanism 300 to the battery module 200 and improving its anti-expansion capability. When the pressure detected by the detection element 400 is less than the preset pressure, the controller controls the pressure applying mechanism 300 to move towards the battery module 200, thereby increasing the pressure applied by the pressure applying mechanism 300 to the battery module 200 and providing appropriate preload. The battery structure and electrical equipment provided in this application can provide preload to the battery module 200 and improve the battery structure's anti-expansion capability.

[0059] In some embodiments, refer to Figure 1 and Figure 2 As shown, the pressure applying mechanism 300 includes a pressure member 310 and at least one pressure applying component 320. The pressure member 310 is used to abut against the battery module 200, and the pressure applying component 320 is located on the side of the pressure member 310 away from the battery module 200. The detection member 400 abuts between the pressure applying component 320 and the pressure member 310.

[0060] Specifically, the pressure applying component 320 is located on the side of the pressure member 310 opposite to the battery module 200. The pressure applying component 320 can apply or release some pressure to the pressure member 310, and the pressure member 310 can evenly transmit the pressure applied by the pressure applying component 320 to the battery module 200, ensuring that the battery module 200 remains stable within the tray 100. Thus, by controlling the movement of the pressure applying component 320, the pressure applied by the pressure member 310 to the battery module 200 can be adjusted.

[0061] The detection element 400 is located between the pressure application component 320 and the pressure component 310, and can monitor the pressure between the pressure application component 320 and the pressure component 310 in real time, and transmit the pressure data to the controller. The controller can dynamically adjust the position of the pressure application component 320 based on the pressure data provided by the detection element 400.

[0062] In some embodiments, refer to Figure 2 and Figure 3 As shown, the pressure application assembly 320 includes a drive member 321 and a transmission member 322 connected to the drive member 321. The drive member 321 is connected to the pressure member 310, and the detection member 400 abuts between the transmission member 322 and the pressure member 310.

[0063] The drive unit 321 is connected to the controller. When the pressure detected by the detection unit 400 is greater than the preset pressure, the controller controls the drive unit 321 to drive the transmission unit 322 to move away from the pressure unit 310. When the pressure detected by the detection unit 400 is less than the preset pressure, the controller controls the drive unit 321 to drive the transmission unit 322 to move towards the pressure unit 310.

[0064] Specifically, the drive unit 321 is the execution unit of the pressure application component 320. The drive unit 321 is communicatively connected to the controller and can convert the controller's instructions into mechanical motion. Exemplarily, the drive unit 321 can be an electric motor, a hydraulic cylinder, or other types of drive devices, as long as the drive unit 321 can provide power to move the transmission component 322. This application embodiment does not impose too many restrictions on this.

[0065] The transmission component 322 is connected to the drive component 321 and can transmit the motion of the drive component 321 to the pressure component 310. For example, the transmission component 322 can be a screw, gear or other mechanical transmission structure, as long as the transmission component 322 can effectively convert the linear or rotational motion of the drive component 321 into a thrust on the pressure component 310. This application embodiment does not impose too many restrictions on this.

[0066] The pressure component 310 is located between the transmission component 322 and the battery module 200. The pressure component 310 can convert the movement of the transmission component 322 into pressure adjustment of the battery module 200. The detection component 400 abuts between the transmission component 322 and the pressure component 310, and can monitor the pressure between the two in real time.

[0067] The controller receives pressure data from the detection element 400 and controls the action of the drive element 321 according to a preset pressure threshold. When the pressure detected by the detection element 400 exceeds the preset pressure, the controller instructs the drive element 321 to drive the transmission element 322 away from the pressure element 310 (i.e., Figure 2 The pressure member 321 moves (in the positive direction of Y as indicated by the middle arrow) to reduce the pressure applied to the pressure member 310 and the battery module 200. As the pressure on the pressure member 310 and the battery module 200 decreases, the battery module 200 expands, which can push the pressure member 310 to move in the positive direction of Y. Since the driving member 321 is connected to the pressure member 310, the driving member 321 follows the pressure member 310 in the positive direction of Y, and the driving member 321 remains connected to the transmission member 322.

[0068] When the detected pressure is less than the preset pressure, the controller instructs the drive unit 321 to drive the transmission unit 322 toward the pressure unit 310 (i.e., Figure 2 The pressure member 310 moves in the opposite direction of Y (as indicated by the middle arrow), increasing the pressure applied to the pressure member 310. The transmission member 322 can then push the pressure member 310 to move in the opposite direction of Y. This increased pressure on the battery module 200 provides appropriate preload. Since the drive member 321 is connected to the pressure member 310, it follows the pressure member 310 in the opposite direction of Y, and the drive member 321 remains connected to the transmission member 322.

[0069] In some embodiments, refer to Figures 2 to 4 As shown, the pressure application assembly 320 also includes a drive shaft 323, which is connected to the tray 100.

[0070] The transmission component 322 includes a first gear 3221 and a second gear 3222. The first gear 3221 is disposed on the driving component 321, and the second gear 3222 is sleeved on the driving shaft 323. The first gear 3221 and the second gear 3222 mesh, and the detection component 400 abuts between the second gear 3222 and the pressure component 310.

[0071] Specifically, the first gear 3221 is mounted on the drive member 321 and directly receives the power output from the drive member 321, converting the motion of the drive member 321 into the rotation of the first gear 3221. The second gear 3222 is sleeved on the drive shaft 323 and meshes with the first gear 3221. Through gear meshing, the second gear 3222 transmits the rotational motion of the first gear 3221 to the drive shaft 323.

[0072] Since the drive shaft 323 is connected to the tray 100, it provides a stable axis of rotation. The second gear 3222 is sleeved on the drive shaft 323, which supports the rotational movement of the second gear 3222. The second gear 3222 converts the rotational movement into linear movement. The second gear 3222 moves relative to the pressure member 310 to apply or release some pressure to the pressure member 310. Exemplarily, the drive shaft 323 can be connected to the tray 100 via fasteners.

[0073] It should be noted that the second gear 3222 and the drive shaft 323 can be a helical gear and a worm gear, or a gear and a rack, respectively. This application does not impose too many restrictions on this.

[0074] In some embodiments, refer to Figure 3 As shown, the drive shaft 323 and the second gear 3222 are connected by a thread.

[0075] Specifically, when the drive component 321 drives the second gear 3222 to rotate through the first gear 3221, since the second gear 3222 is connected to the drive shaft 323 by a thread and the drive shaft 323 is fixed on the tray 100, the rotation of the second gear 3222 will cause it to move axially along the drive shaft 323.

[0076] It should be noted that by changing the rotation direction of the drive component 321, the second gear 3222 can be driven to move away from or toward the pressure component 310.

[0077] In some embodiments, refer to Figure 3 As shown, the pressure application assembly 320 also includes a reducer 324, which is connected between the drive member 321 and the first gear 3221.

[0078] It should be noted that the reducer 324 can increase the output torque by reducing the output speed. The increased torque can help drive the second gear 3222 to move, thereby changing the force applied to the pressure member 310.

[0079] It should also be noted that the reduction ratio of the reducer 324 can be flexibly adjusted according to the required pressure. After the first gear 3221 outputs torque in a certain direction, it is transmitted to the second gear 3222. The second gear 3222, with the drive shaft 323 as the axis, receives the axial force generated by the cell's charging, discharging, contraction, and expansion process through the detection element 400 and feeds it back to the controller (the controller includes, but is not limited to, PID control, neural network control, fuzzy control, predictive control, etc.). The controller monitors the force in real time and adjusts the rotation direction of the first gear 3221 and the magnitude of the torque output by the drive element 321 accordingly, thereby realizing the dynamic and fine control of the clamping force of the battery module 200 and the displacement of the pressure element 310.

[0080] In some embodiments, refer to Figure 1 As shown, the pressure component 310 is one of a nickel plate, a titanium plate, a thermoplastic polyester elastomer plate, a thermoplastic polyurethane elastomer plate, and a thermoplastic vulcanized rubber plate.

[0081] It should be noted that the nickel and titanium plates are shape memory alloy sheets. Thermoplastic elastomer sheets, such as thermoplastic polyester elastomer sheets, thermoplastic polyurethane elastomer sheets, and thermoplastic vulcanized rubber sheets, are materials that combine the properties of thermoplastic plastics and elastomers. They can be processed and molded at high temperatures like plastics. Among them, thermoplastic polyester elastomer sheets have good elasticity and flexibility, and can quickly return to their original shape after being subjected to stress. Thermoplastic polyurethane elastomer sheets combine high elasticity and high strength, and can withstand greater mechanical stress. Thermoplastic vulcanized rubber sheets combine the elasticity of rubber and the processing characteristics of plastics, exhibiting excellent elasticity. Therefore, when the volume of a single battery cell expands due to increased temperature and pressure during operation, thermoplastic polyester elastomer sheets, thermoplastic polyurethane elastomer sheets, and thermoplastic vulcanized rubber sheets can deform, and can recover their elastic deformation when the single battery cell contracts.

[0082] Specifically, when a single cell shrinks due to charging and discharging, the drive unit 321 drives the first gear 3221 to rotate forward, and the second gear 3222 applies pressure to the pressure unit 310. The pressure unit 310 can fit tightly with the battery module 200 to ensure the clamping force required during battery operation to guarantee the normal electrochemical reaction of the battery.

[0083] When a single cell expands in volume due to increased temperature and pressure during operation, the pressure component 310 deforms. The drive component 321 connected to the pressure component 310 moves accordingly, simultaneously driving the first gear 3221 mounted on the drive component 321 to move synchronously. This ensures that the relative positions of the first gear 3221 and the second gear 3222 remain constant, thus preventing interference between the second gear 3222 and the first gear 3221 during expansion (and when the second gear 3222 moves away from the pressure component 310). At the same time, it can also feed back pressure changes to the pressure sensor, driving the first gear 3221 to reverse, reducing the pressure applied to the battery module 200, and preventing overpressure.

[0084] In some embodiments, refer to Figure 2 As shown, there are multiple battery modules 200, each battery module 200 is arranged in parallel within the tray 100, and each battery module 200 abuts against the pressure member 310.

[0085] Understandably, by having each battery module 200 abut against the pressure member 310, the pressure member 310 can apply uniform pressure to all battery modules 200, which helps to ensure that all battery modules 200 remain stable during charging and discharging, and reduces deformation or damage to individual modules caused by uneven pressure.

[0086] In some embodiments, refer to Figure 2 As shown, there are multiple pressure application components 320, and each pressure application component 320 is arranged on opposite sides of the pressure component 310 in a one-to-one correspondence with the battery module 200.

[0087] Specifically, each pressure-applying component 320 is configured corresponding to each battery module 200, and can apply independent pressure control to each battery module 200, thereby enabling pressure adjustment according to the specific needs of each battery module 200 and improving the performance of each battery module 200.

[0088] It should be noted that by setting up independent pressure application components 320, the pressure on each battery module 200 can be made uniform, which can prevent the battery module 200 from deforming or being damaged due to uneven pressure, and improve the stability of the entire battery system.

[0089] In some embodiments, refer to Figure 5 and Figure 6 As shown, the battery structure also includes a connector 500, through which two adjacent battery modules 200 are connected.

[0090] Specifically, the use of connector 500 simplifies the assembly process of battery module 200, making it easier to align and secure battery modules 200, and facilitating quick disassembly and reinstallation of battery modules 200 during maintenance and replacement.

[0091] The connector 500 provides additional mechanical support to the battery module 200, enhancing the structural stability of the entire battery system, helping to resist external vibrations and shocks, and protecting the battery module 200 from physical damage. For example, the connector 500 can be a connecting piece.

[0092] In some embodiments, refer to Figure 2 and Figure 5 As shown, the battery module 200 is bonded to the pressure component 310 and the tray 100 respectively.

[0093] It should be noted that the battery module 200 can be bonded to the pressure member 310 and the tray 100 by structural adhesive 210. The structural adhesive 210 has high bonding strength and can provide reliable fixation so that the battery module 200 remains stable between the tray 100 and the pressure member 310, preventing displacement during transportation and operation.

[0094] Secondly, this application also provides an electrical device, including a device body and a battery structure disposed on the device body.

[0095] The specific structure and operation of the battery structure have been described in detail in the above embodiments, and will not be repeated here.

[0096] It should be noted that the electrical equipment can be a vehicle or other electrical equipment, and this application does not impose too many restrictions on this.

[0097] It should also be noted that the battery structure and electrical equipment provided in this application embodiment can achieve initial pre-tightening force and elastic restraint force, realizing self-restraint of the battery module 200 without the need for adjustments to the overall vehicle structure, making it easier to iterate on existing models. The elastic anti-expansion structure can achieve elastic restraint throughout the battery cycle and its entire life cycle. Especially for the high expansion and contraction of the positive and negative electrodes of solid-state batteries, the self-restraint structure of the battery module 200 can ensure that restraint is provided at all times, ensuring interface adhesion, thus preventing voltage drops throughout the entire cycle. Furthermore, the battery structure is lightweight, achieving higher energy density; the component cost is low, making it easier to industrialize. The dynamic changes in the restraint force of the battery module 200 can be fed back to the controller based on the pressure / displacement changes during the charging and discharging process of the battery cells, allowing for real-time adjustment of the required restraint force.

[0098] Those skilled in the art will understand that the battery structure and electrical device provided in this application include a tray 100, a battery module 200, a pressure applying mechanism 300, a detection element 400, and a controller. Both the battery module 200 and the pressure applying mechanism 300 are housed within the tray 100. The pressure applying mechanism 300 abuts against the battery module 200 and can apply or release partial pressure to the battery module 200. The detection element 400 abuts between the pressure applying mechanism 300 and the battery module 200 and can detect the pressure between them.

[0099] Both the detection element 400 and the pressure applying mechanism 300 are communicatively connected to the controller. When the pressure detected by the detection element 400 exceeds a preset pressure, the controller controls the pressure applying mechanism 300 to move away from the battery module 200, thereby reducing the pressure applied by the pressure applying mechanism 300 to the battery module 200 and improving its anti-expansion capability. When the pressure detected by the detection element 400 is less than the preset pressure, the controller controls the pressure applying mechanism 300 to move towards the battery module 200, thereby increasing the pressure applied by the pressure applying mechanism 300 to the battery module 200 and providing appropriate preload. The battery structure and electrical equipment provided in this application can provide preload to the battery module 200 and improve the battery structure's anti-expansion capability.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0102] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A battery structure, characterized in that, include: Pallet (100); A battery module (200) is disposed within the tray (100); A pressure applying mechanism (300) is disposed within the tray (100), and the pressure applying mechanism (300) is used to abut against the battery module (200); A detection element (400) is abutted between the pressure applying mechanism (300) and the battery module (200), and the detection element (400) is used to detect the pressure between the pressure applying mechanism (300) and the battery module (200); The controller is communicatively connected to both the detection element (400) and the pressure applying mechanism (300). When the pressure detected by the detection element (400) is greater than the preset pressure, the controller controls the pressure applying mechanism (300) to move away from the battery module (200); when the pressure detected by the detection element (400) is less than the preset pressure, the controller controls the pressure applying mechanism (300) to move towards the battery module (200).

2. The battery structure according to claim 1, characterized in that, The pressure applying mechanism (300) includes a pressure member (310) and at least one pressure applying component (320), the pressure member (310) being used to abut against the battery module (200), the pressure applying component (320) being located on the side of the pressure member (310) away from the battery module (200), and the detection member (400) abutting between the pressure applying component (320) and the pressure member (310).

3. The battery structure according to claim 2, characterized in that, The pressure application assembly (320) includes a drive member (321) and a transmission member (322) connected to the drive member (321). The drive member (321) is connected to the pressure member (310), and the detection member (400) abuts between the transmission member (322) and the pressure member (310). The drive unit (321) is communicatively connected to the controller. When the pressure detected by the detection unit (400) is greater than the preset pressure, the controller controls the drive unit (321) to drive the transmission unit (322) to move away from the pressure unit (310). When the pressure detected by the detection unit (400) is less than the preset pressure, the controller controls the drive unit (321) to drive the transmission unit (322) to move toward the pressure unit (310).

4. The battery structure according to claim 3, characterized in that, The pressure application assembly (320) also includes a drive shaft (323) connected to the tray (100); The transmission component (322) includes a first gear (3221) and a second gear (3222). The first gear (3221) is disposed on the driving component (321), and the second gear (3222) is sleeved on the driving shaft (323). The first gear (3221) meshes with the second gear (3222), and the detection component (400) abuts between the second gear (3222) and the pressure component (310).

5. The battery structure according to claim 4, characterized in that, The drive shaft (323) is connected to the second gear (3222) by a thread.

6. The battery structure according to claim 4, characterized in that, The pressure application assembly (320) also includes a speed reducer (324) connected between the drive member (321) and the first gear (3221).

7. The battery structure according to any one of claims 2 to 6, characterized in that, The pressure component (310) is one of a nickel plate, a titanium plate, a thermoplastic polyester elastomer plate, a thermoplastic polyurethane elastomer plate, and a thermoplastic vulcanized rubber plate.

8. The battery structure according to any one of claims 2 to 6, characterized in that, The number of battery modules (200) is multiple, and each battery module (200) is arranged in parallel within the tray (100), and each battery module (200) abuts against the pressure member (310).

9. The battery structure according to claim 8, characterized in that, There are multiple pressure application components (320), and each pressure application component (320) is arranged on opposite sides of the pressure member (310) in a one-to-one correspondence with the battery module (200).

10. The battery structure according to claim 8, characterized in that, It also includes a connector (500) through which two adjacent battery modules (200) are connected.

11. The battery structure according to any one of claims 2 to 6, characterized in that, The battery module (200) is bonded to the pressure member (310) and the tray (100) respectively.

12. An electrical appliance, characterized in that, Includes the device body and the battery structure according to any one of claims 1 to 11 disposed on the device body.

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