Filling structure, battery pack and electric equipment

Abstract

The embodiment of the utility model provides a filling structure, a battery pack and electric equipment, and relates to the technical field of battery packs. The filling structure comprises an end plate and a glue filling part, the glue filling surface of the end plate is used for forming a glue filling groove, the glue filling part is arranged on the end plate, the glue filling part is provided with a glue guiding channel, the first end of the glue guiding channel is used for glue filling, and the second end of the glue guiding channel communicates with the glue filling groove. When glue is injected into the glue filling groove, glue is injected through the first end of the glue guide channel, the glue is injected into the glue filling groove through the second end of the glue guide channel, and a specific structure formed by the end plate and the glue filling piece is arranged, so that a clear and stable channel is provided for glue injection. The glue can be conveniently and accurately injected into the glue guide channel by an operator or a filling device, so that the glue can enter an area needing to be filled more smoothly. And the glue is not easy to overflow, so that the production line efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a filling structure, battery pack and electrical device. Background Technology

[0002] The tray is an important component of the battery pack, used to hold the battery assembly. The tray includes a base plate and a frame surrounding the base plate. The base plate and frame together form a receiving cavity in which the battery assembly can be placed. End plates are provided between the battery assembly and the side walls of the receiving cavity to prevent the battery assembly from directly contacting the frame.

[0003] In the prior art, there is a gap between the end plate and the side wall of the receiving cavity, and glue needs to be injected into the gap to ensure the stability of the battery pack.

[0004] However, injecting glue into the gaps is difficult and can easily cause glue overflow, affecting production line efficiency. Utility Model Content

[0005] In view of this, this application provides a filling structure, a battery pack, and an electrical device, which aims to solve the problem of difficult operation and easy overflow of glue when injecting glue into the gap between the filling beam and the side wall of the receiving cavity.

[0006] To achieve the above objectives, this application provides a filling structure, a battery pack, and an electrical device, which adopt the following technical solution:

[0007] In a first aspect, this application provides a filling structure, including:

[0008] An end plate having a filling surface for forming a filling groove;

[0009] A filler is disposed on the end plate. The filler has a glue guiding channel. The first end of the glue guiding channel is used for glue filling, and the second end of the glue guiding channel is used to communicate with the glue filling groove for glue injection.

[0010] In one possible implementation, the filling structure provided in this application has a connecting groove on the end plate, and part of the filling component is located in the connecting groove.

[0011] In one possible implementation, the filling structure provided in this application includes a filling part and a connecting part connected to the filling part;

[0012] The glue-dispensing section is provided with the glue-guiding channel; and the connecting part is connected to the end plate.

[0013] In one possible implementation, the filling structure provided in this application has the glue-filling part inserted into the connecting groove, and the connecting part located outside the connecting groove and connected to the glue-filling surface.

[0014] In one possible implementation, the filling structure provided in this application has the connecting portion connected to the filling surface via an adhesive.

[0015] In one possible implementation, the filling structure provided in this application has a glue-filling hole on the glue-filling part, and the first end of the glue-guiding channel is glue-filled through the glue-filling hole;

[0016] And / or, the connecting part is provided with an injection hole, and the second end of the adhesive guiding channel is connected to the adhesive filling groove through the injection hole.

[0017] In one possible implementation, the filling structure provided in this application has the opening directions of the potting hole and the injection hole intersecting.

[0018] In one possible implementation, the filling structure provided in this application has the connecting groove opened along a first direction, which is parallel to the height direction of the end plate;

[0019] In the first direction, the first end of the adhesive guiding channel is higher than the second end of the adhesive guiding channel.

[0020] In one possible implementation, the filling structure provided in this application further includes a sealant disposed on the filling surface, the side of the sealant facing away from the end plate being used to close the filling groove.

[0021] In one possible implementation, the filling structure provided in this application has a first direction in which the height of the filling member is less than the opening height of the connecting groove, the top end of the filling member is connected to the sealing member, and the first direction is parallel to the height direction of the end plate.

[0022] In one possible implementation, the filling structure provided in this application includes a sealing member comprising a first extension extending along a second direction and two second extensions respectively connected to both ends of the first extension. The second extensions extend along the first direction, which is parallel to the extension direction of the end plate, and the first direction is parallel to the height direction of the end plate.

[0023] The first end of the second extension is connected to the end of the first extension, and the second end of the second extension is used to connect to the bottom of the filling groove.

[0024] In one possible implementation, the filling structure provided in this application includes at least two fillers arranged along a second direction, which is parallel to the extension direction of the end plate.

[0025] In one possible implementation, the filling structure provided in this application further includes a sealing element disposed on the filling surface, the side of the sealing element facing away from the end plate being used to close the filling groove;

[0026] In the third direction, the thickness of the seal is greater than the thickness of the filler extending beyond the filler surface;

[0027] The third direction is perpendicular to the filling surface.

[0028] In one possible implementation, the filling structure provided in this application has a sealant in a compressed state and an expanded state. The surface of the sealant in the compressed state is covered with a plastic sealing film. After the plastic sealing film is broken, the sealant can extend along the third direction to change the sealant from the compressed state to the expanded state.

[0029] When the seal is in an expanded state, the thickness of the seal is greater than the thickness of the filler extending beyond the filler surface.

[0030] Secondly, this application provides a battery pack, including a tray, at least one of the above-described filling structures, and at least one battery pack;

[0031] The filling structure and the battery pack are disposed in the tray, and the filling surface forms the filling groove with the inner wall of the tray, and / or the filling surface forms the filling groove with the end face of the battery pack.

[0032] In one possible implementation, the battery pack provided in this application includes a tray comprising a base plate and a frame, the base plate and the frame forming a receiving cavity, and the filling structure and the battery pack disposed within the receiving cavity;

[0033] The end plate is disposed on the base plate and connected to the frame. The glue filling surface, the base plate and the inner wall of the frame enclose the glue filling groove. The battery pack is disposed on the side of the end plate away from the glue filling groove.

[0034] Thirdly, this application provides an electrical device, including a device body and the aforementioned battery pack, wherein the battery pack is used to provide electrical energy to the device body.

[0035] The filling structure provided in this application includes an end plate and a filler component. The filler surface of the end plate forms a filling groove. The filler component is disposed on the end plate and has a guide channel. The first end of the guide channel is used for glue injection, and the second end of the guide channel communicates with the filling groove. When injecting glue into the filling groove, glue is injected through the first end of the guide channel, and the glue is injected into the filling groove through the second end of the guide channel. By setting the specific structure formed by the end plate and the filler component, a clear and stable channel for glue injection is provided. Operators or injection equipment can accurately inject glue into the guide channel through the first end of the guide channel, allowing the glue to enter the area to be filled more smoothly. Furthermore, glue overflow is less likely to occur, thereby improving production line efficiency.

[0036] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0037] The specific embodiments of this application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this application, and this application is not limited to the specific embodiments described below.

[0038] Figure 1 A schematic diagram of the filling structure provided in this application;

[0039] Figure 2 This is a partial exploded structural diagram of the filler and end plate provided in this application;

[0040] Figure 3 A partial structural schematic diagram of the filler and end plate provided in this application;

[0041] Figure 4 for Figure 1 A partial structural diagram of the filling component and the sealant in the expanded state;

[0042] Figure 5 This is a schematic diagram of part of the internal structure of the filling structure and tray provided in this application.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Filling groove; 20. Base plate; 30. Frame; 100. End plate; 101. Connecting groove; 102. Filling surface; 200. Seal; 210. First extension; 220. Second extension; 300. Filling component; 301. Glue guiding channel; 302. Glue filling hole; 310. Glue filling part; 311. Glue injection hole; 320. Connecting part; 400. Adhesive component.

[0045] 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

[0046] 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, 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. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0047] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly 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 between 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.

[0048] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.

[0049] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0050] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0051] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0052] The tray is an important component of the battery pack, used to hold the battery assembly. The tray includes a base plate and a frame surrounding the base plate. The base plate and frame together form a receiving cavity in which the battery assembly can be placed. End plates are provided between the battery assembly and the side walls of the receiving cavity to prevent the battery assembly from directly contacting the frame.

[0053] In the prior art, due to the assembly tolerances of the tray and end plate, there is still a gap between the end plate and the side wall of the receiving cavity. It is necessary to inject glue into the gap to constrain the battery pack and ensure its stability.

[0054] However, assembly tolerances in the tray and endplate can lead to inconsistent gap sizes between the filler and the sidewalls of the receiving cavity. When the gap is small, the glue injection operation becomes very difficult, making it hard to inject the glue and affecting production line efficiency. Furthermore, when the gap is an open space, it is difficult to control the amount of glue, easily resulting in incomplete glue injection or glue overflow.

[0055] To address the aforementioned technical issues, this application provides a filling structure including an end plate and a filler component. The filler surface of the end plate forms a filling groove, and the filler component is disposed on the end plate. The filler component has a guide channel, with a first end for dispensing adhesive and a second end communicating with the filling groove. When dispensing adhesive into the filling groove, adhesive is dispensed through the first end of the guide channel, and then injected into the filling groove through the second end of the guide channel. This specific structure formed by the end plate and the filler component provides a clear and stable channel for adhesive dispensing. This facilitates accurate dispensing of adhesive into the guide channel by operators or dispensing equipment, allowing the adhesive to smoothly enter the area requiring filling. Furthermore, adhesive overflow is less likely, thereby improving production line efficiency.

[0056] Furthermore, the aforementioned arrangement helps achieve uniform glue filling within the gap between the filling beam and the sidewall of the receiving cavity. Uniform glue filling provides more stable and reliable support for the battery pack within the tray, reducing issues such as battery pack shaking or displacement caused by uneven local filling. This enhances the overall compactness and stability of the tray structure. This helps to better protect the battery pack from external vibrations and impacts during use, thereby improving the stability and safety of the battery pack.

[0057] It should be noted that, Figures 1 to 5 This diagram illustrates a simplified representation of the filling structure, battery pack, and components within the electrical device. The specific structures of the remaining components in the filling structure, battery pack, and electrical device are not limited to these examples. Figures 1 to 5 of examples.

[0058] It should be noted that Figures 1 to 5 The X, Y, and Z arrows (if present) indicate directions that are mutually perpendicular in three-dimensional space.

[0059] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0060] Reference Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this application, a filling structure includes an end plate 100 and a filler 300. The filler surface 102 of the end plate 100 can be disposed opposite to the frame 30. The filler surface 102 of the end plate 100 is used to form a filler groove 10.

[0061] The filler 300 is disposed on the end plate 100. The filler 300 has a glue guiding channel 301. The first end of the glue guiding channel 301 is used for glue filling, and the second end of the glue guiding channel 301 is connected to the glue filling groove 10.

[0062] In practice, the first end of the adhesive guiding channel 301 can be located outside the adhesive filling groove 10, which makes it easier for operators or dispensing equipment to accurately inject the adhesive into the adhesive guiding channel 301. This avoids the problem of the adhesive being difficult to align with the dispensing position due to the open gap in the traditional method, and allows the adhesive to enter the area that needs to be filled more smoothly.

[0063] Of course, the first end of the adhesive guiding channel 301 can also be flush with the top surface of the end plate 100, so that the adhesive filling part 300 does not protrude from the top surface of the end plate 100 in the height direction of the end plate 100, thus avoiding interference with other components.

[0064] like Figure 1 neutralization Figure 2 In the direction indicated by the Z arrow, the first end of the adhesive guiding channel 301 is higher than the second end of the adhesive guiding channel 301 within the direction of the Z arrow.

[0065] In the above embodiments, within the relevant technical field, the end plate 100 can be a filler beam. The filler beam is made of aluminum with a density of 2.7 grams per cubic centimeter, and the forming process is aluminum extrusion. The filler beam is usually set on the outer edge of the battery pack to constrain the battery pack. The filler beam can be made of aluminum or steel. This application does not limit the specific structure of the filler beam. The surface of the filler beam opposite to the frame 30 is the glue-filling surface 102 of the end plate 100.

[0066] The specific structure formed by the end plate 100 and the filler 300 provides a clear and stable channel for glue injection. Compared to directly injecting glue into an open gap, this design with the glue guiding channel 301 makes the glue injection process more controllable. Operators do not need to worry excessively about glue overflow or failure to accurately reach the target position, reducing the difficulty and complexity of operation and improving the efficiency of glue injection.

[0067] The presence of the adhesive channel 301 not only guides the adhesive into the filling tank 10, but also restricts the flow range of the adhesive to a certain extent.

[0068] The filler part 300 can be made of rubber with a density of 0.93 kg per cubic meter. It is formed by hot pressing with a mold. After molding, the hardness ranges from Shore 50 to 55, and the flame retardant rating is required to reach 94V-0.

[0069] In one possible implementation, the end plate 100 is provided with a connecting groove 101, and a portion of the filler 300 is located within the connecting groove 101.

[0070] In the above embodiment, the connecting groove 101 is disposed on the end plate 100, providing a clear and fixed position for the filler 300. When injecting adhesive into the gap between the filling beam and the side wall of the receiving cavity, i.e., within the filling groove 10, the filler 300, located within the connecting groove 101, can be more precisely aligned with the filling groove 10. This avoids adhesive leakage or uneven filling caused by positional deviations, further improving the efficiency and accuracy of adhesive filling. Because the position of the filler 300 within the connecting groove 101 is relatively fixed, operators can more clearly control the flow direction and amount of adhesive during injection. The connecting groove 101 provides a stable support and placement space for the filler 300, making it less prone to displacement or shaking during filling. When adhesive is injected, the filler 300 can maintain a stable state within the connecting groove 101, thereby ensuring the continuity and stability of adhesive filling.

[0071] In one possible implementation, the filler 300 includes a filling portion 310 and a connecting portion 320 disposed on the filling portion 310. A guiding channel 301 is provided within the filling portion 310.

[0072] The glue-filling part 310 is inserted into the connecting groove 101, the connecting part 320 is located outside the connecting groove 101, and the connecting part 320 is connected to the glue-filling surface 102 of the end plate 100.

[0073] With the above-described configuration, the filler 300 is divided into a dispensing section 310 and a connecting section 320. A guide channel 301 is provided within the dispensing section 310. The direction and shape of the guide channel 301 can be designed more precisely according to the specific shape and requirements of the filling groove 10. This allows the adhesive to flow more smoothly and efficiently along the guide channel 301 into the filling groove 10 during dispensing, ensuring a fast and uniform filling process and improving the efficiency and quality of the adhesive filling.

[0074] The connecting part 320 is connected to the filling surface 102 of the end plate 100, providing additional support and fixation for the potting part 310, further ensuring the stability of the glue flow and reducing problems such as uneven filling or air bubbles caused by unstable glue flow. The direct connection between the connecting part 320 and the filling surface 102 of the end plate 100 increases the contact area and connection strength between the filling component 300 and the end plate 100. During battery pack use, the end plate 100 needs to withstand the weight of the battery pack as well as various external forces and vibrations. The secure connection between the filling component 300 and the end plate 100 via the connecting part 320 better transmits and disperses these forces, ensuring that the filling structure is not easily loosened or damaged, thus improving the structural stability and reliability of the entire battery pack. During assembly, the operator can insert the potting part 310 into the connecting groove 101 and then connect and fix the connecting part 320 to the end plate 100.

[0075] The above configuration makes the assembly process more convenient and faster, reducing assembly difficulty and time costs. At the same time, the clear connection relationships between the components also reduce the possibility of errors during assembly. If the filler 300 malfunctions or needs replacement during use, simply separate the connector 320 from the end plate 100 to remove the entire filler 300 from the connector groove 101 for repair or replacement.

[0076] In one possible implementation, the connecting portion 320 is disposed toward the filling surface 102, and the connecting portion 320 is connected to the filling surface 102 by the adhesive 400.

[0077] In the above embodiments, it is understood that the connecting portion 320 is disposed opposite to the adhesive filling surface 102, and an adhesive component 400 is disposed between the connecting portion 320 and the adhesive filling surface 102. Here, the adhesive component 400 can be at least one of water-based double-sided tape, oil-based double-sided tape, and hot melt adhesive tape. Specifically, the adhesive component 400 in this application is water-based double-sided tape.

[0078] The connecting part 320 is positioned facing the filling surface 102 and connected via the adhesive component 400, making the connection between the connecting part 320 and the end plate 100 more stable. This ensures that there is little relative displacement or loosening between the connecting part 320 and the end plate 100, thereby guaranteeing the overall stability of the filling structure. The reliable connection between the connecting part 320 and the end plate 100 allows stress to be distributed more evenly across the entire filling structure, preventing stress concentration in localized areas that could lead to damage to the filling structure.

[0079] The connecting part 320 is positioned facing the filling surface 102 and connected via the adhesive component 400, making it easier to perform quality inspections on the filled structure after assembly. Operators can directly observe whether the connecting part 320 is firmly connected and whether the adhesive filling is uniform. This connection method makes the assembly of the filled structure more convenient and faster. Operators only need to align the connecting part 320 with the filling surface 102 and adhesively fix it, without the need for complicated tools or equipment, reducing assembly time and costs. Moreover, because the design and position of the connecting part 320 are relatively fixed, standardized operations can be achieved during production, improving production efficiency and product quality stability.

[0080] In one possible implementation, the connecting part 320 can be directly snapped into the connecting groove 101. This helps simplify the installation process of the connecting part 320 and the connecting groove 101.

[0081] In one possible implementation, the glue-filling part 310 is provided with a glue-filling hole 302, and the first end of the glue-guiding channel 301 is glue-filled through the glue-filling hole 302.

[0082] And / or, the connecting part 320 is provided with an injection hole 311, and the second end of the adhesive guiding channel 301 is connected to the filling groove 10 through the injection hole 311.

[0083] It is understood that the injection hole 311 can be set on the connecting part 320 or on the filling part 310, as long as it can ensure that the second end of the glue guiding channel 301 is connected to the filling groove 10 through the injection hole 311.

[0084] In the above embodiment, a dispensing hole 302 is provided on the dispensing part 310, providing a clear and precise position for the glue to enter the filling groove 10. This avoids the problem of uneven distribution of glue within the filling structure due to inaccurate dispensing position. The second end of the glue guiding channel 301 is connected to the filling groove 10 through the dispensing hole 311, allowing the glue to be more evenly distributed throughout the filling groove 10 during the filling process.

[0085] The opening directions of the potting hole 302 and the injection hole 311 intersect. In practice, the opening directions of the potting hole 302 and the injection hole 311 are perpendicular to each other. The opening direction of the potting hole 302 is oriented towards the height direction of the end plate 10, and the opening direction of the injection hole 311 is oriented towards the thickness direction of the end plate 10. This reduces the number of components with special angles, facilitating manufacturing.

[0086] In one possible implementation, the connecting groove 101 is formed along a first direction, which is parallel to the height direction of the end plate 100. Specifically, the first direction is... Figure 1 and Figure 2 The direction of the Z-arrow.

[0087] In the first direction, the first end of the adhesive guiding channel 301 is higher than the second end of the adhesive guiding channel 301.

[0088] By setting the connecting groove 101 to be opened along a first direction, and the first direction being parallel to the height direction of the end plate 100, the design of the first end of the adhesive guiding channel 301 being higher than the second end allows the adhesive to flow more smoothly during the pouring process using gravity. When the adhesive enters the adhesive guiding channel 301 from the higher end, it will naturally flow towards the lower second end under the pull of gravity, thus making it easier to fill the entire filling groove 10. This design reduces the resistance of the adhesive flowing in the channel, improves the filling efficiency of the adhesive, and ensures that the filling groove 10 can be filled with adhesive more quickly and completely.

[0089] Different types of adhesives may have different viscosity, flowability, and other properties. The height difference design of the adhesive guiding channel 301 allows this filling structure to better adapt to the use of various adhesives. For adhesives with higher viscosity, gravity helps them flow and fill better; while for adhesives with better flowability, the advantages of the flow path formed by the height difference can be fully utilized by adjusting the dispensing speed and angle to ensure that the adhesive is accurately filled to the designated location. This improves the practicality of the filling structure.

[0090] In one possible implementation, a seal 200 is also included. The seal 200 is disposed on the filling surface 102. The seal 200 and the end plate 100 form a filling groove 10. The side of the seal 200 facing away from the end plate 100 is used to abut against the frame 30 so that the frame 30 closes the filling groove 10. Specifically, the seal 200 can be used to form a filling groove 10 with the inner wall of the frame, or with the end of the battery pack, or with other structural components in the battery pack.

[0091] Furthermore, the seal 200 abuts against the frame 30, reliably sealing the filler groove 10 and forming a relatively enclosed filling space. During glue injection, because the filler groove 10 is effectively sealed, glue is less likely to leak from the filling area, thus greatly reducing the possibility of glue overflow.

[0092] After the adhesive enters the filling groove 10 through the adhesive guiding channel 301, it can be more evenly distributed within the predetermined filling area under the constraint of the sealant 200 and the frame 30, further reducing the risk of adhesive overflow. The good sealing between the sealant 200 and the frame 30, as well as the filling effect of the adhesive in the gaps, enhances the tightness and stability of the overall tray structure. This helps to better protect the battery pack from external vibrations, impacts, and other factors during battery pack use, thereby improving the stability and safety of the battery pack.

[0093] In the first direction, the height of the filler 300 is less than the height of the groove of the connecting groove 101, and the top of the filler 300 is connected to the seal 200.

[0094] The filler 300 is tightly connected to the sealant 200 and is lower in height than the opening of the connecting groove 101, creating a continuous and tight sealing area at the filler groove 10. This structural design helps the filler 300 and sealant 200 fit better against the base plate 20 and frame 30 during the filling process, reducing the risk of loosening or displacement due to structural gaps or mismatches. When the battery pack is subjected to external impact or vibration, the robust connection ensures that the filling structure is not easily damaged, maintaining its sealing and cushioning function, thereby improving the overall stability and reliability of the battery pack structure.

[0095] In one possible implementation, at least two filler members 300 are provided, and the two filler members 300 are arranged along a second direction, which is parallel to the extension direction of the end plate 100.

[0096] In the above embodiments, such as Figure 1 As indicated by the X arrow, the first direction is... Figure 1The direction indicated by the X-arrow. Because the filler components 300 are arranged along the extension direction of the end plate 100, during the glue injection process, the glue can flow more evenly to various parts of the glue filling tank 10 along the channels formed by the multiple filler components 300. Each filler component 300 can act as an independent glue guiding path, guiding the glue to fill the space around it. Compared with a single filler component 300 design, this layout reduces the possibility of excessive glue concentration or insufficient filling in certain local areas, resulting in a more uniform distribution of glue within the glue filling tank 10 and improving the overall quality of glue filling. Uniform glue filling better achieves the function of sealing and fixing the battery pack, preventing external impurities from entering the battery pack, while ensuring the stability of the battery pack within the tray. The presence of multiple filler components 300 provides greater flexibility in controlling the glue filling amount. Depending on different battery pack designs and production requirements, the filling amount or injection sequence of each filler component 300 can be adjusted to precisely control the filling amount and distribution of glue throughout the glue filling tank 10.

[0097] In one possible implementation, in the third-party direction, the thickness of the seal 200 is greater than the thickness of the filler 300 extending beyond the filler surface 102.

[0098] The third direction is perpendicular to the filling surface 102.

[0099] like Figure 4 As shown, and in combination Figure 1 and Figure 2 Third party is Figure 4 In the direction indicated by the Y-arrow, by ensuring that the thickness of the seal 200 in the third direction is greater than that of the filler 300, the gap between the filler beam and the sidewall of the receiving cavity can be sealed more effectively, thereby reducing or eliminating the possibility of glue leakage. This helps improve the stability and safety of the battery pack. A thicker seal 200 may provide additional structural support for the battery pack, especially under external pressure or impact. This helps protect the internal battery pack from damage and extends the battery pack's lifespan.

[0100] In one possible implementation, the seal 200 has a compressed state and an expanded state. When the seal 200 is in the compressed state, its surface is covered with a plastic sealant. After the plastic sealant breaks, the seal 200 can extend in a third direction to change the seal 200 from the compressed state to the expanded state.

[0101] When the seal 200 is in an expanded state, the thickness of the seal 200 is greater than the thickness of the filler 300 extending out of the filler surface 102.

[0102] In the above embodiment, when compressed, the surface of the seal 200 is covered with a plastic sealing film. The plastic sealing film serves multiple functions: it prevents dust, impurities, and other contaminants from adhering to the surface of the seal 200 during the initial assembly of the battery pack or when unaffected by external factors, keeping the seal 200 clean and thus ensuring initial sealing performance. Simultaneously, the plastic sealing film also helps prevent accidental damage to the seal 200 during transportation or storage.

[0103] When the seal 200 is in a compressed state, its shape and size are relatively stable, making it easier to handle and install during the production process. Workers can easily place the filling structure in the designated position on the battery pack and accurately position it in conjunction with structures such as the frame 30, improving the efficiency and precision of battery pack assembly.

[0104] After the operator initially positions and mates the seal 200 with the frame 30 and other structures, they can use tools such as a knife to cut the plastic film, causing the seal 200 to change from a compressed state to an expanded state and extend along a third direction. This extension fills gaps. The rebound value of the seal 200 during the transition from a compressed to an expanded state is greater than the maximum gap after tolerance accumulation. The extension direction of the seal 200 is perpendicular to the filler surface 102. This direction selection better adapts to stress changes and gap adjustment requirements of the battery pack's internal structure in the third direction. By extending along this specific direction, the seal 200 can more effectively cover and seal potential leakage paths, greatly enhancing the sealing performance of the battery pack under complex operating conditions. This further constrains the battery pack.

[0105] Specifically, the first extension 210 and the two second extensions 220 are integrally formed, and the first extension 210 and the two second extensions 220 can be vacuum foam. The vacuum foam is made of foamed silicone with a density of 260 kg / m³, and the plastic film is a PET bag with a thickness of 0.1 mm to 0.2 mm and a density of 1.35 g / m³, used for compression and vacuuming to shrink the volume of the vacuum foam.

[0106] Optionally, the seal 200 includes a first extension 210 and two second extensions 220 respectively disposed at the ends of the first extension 210.

[0107] The first extension 210 is spaced apart from the base plate 20, the first end of the second extension 220 is disposed at the end of the first extension 210, and the second end of the second extension 220 is used to abut against the base plate 20.

[0108] Here, through the above arrangement, the first extension 210 is spaced apart from the base plate 20. This design forms a preliminary sealed space, preventing external impurities and moisture from entering the gap between the battery pack housing cavity and the filling beam from the bottom. Two second extensions 220 are located at the ends of the first extension 210 and abut against the base plate 20. Working in conjunction with the first extension 210, they further prevent external substances from intruding from both sides, enhancing the sealing performance of the entire filling structure in the direction perpendicular to the base plate 20. This makes the seal more reliable and effectively prevents the battery pack from being affected by external environmental factors such as dust and moisture, which could cause corrosion or short circuits inside the battery pack.

[0109] In one specific implementation, the first extension 210 can be connected to the top end of one filler 300, or to the top end of at least two filler 300s. The design can be optimized according to actual needs, and this application does not impose any restrictions on this.

[0110] Reference Figure 5 As shown, and in combination Figures 1 to 4 This application also provides a battery pack, including a tray, at least one of the above-described filling structures, and at least one battery pack.

[0111] The filling structure and battery pack are located in the tray, and the filling surface 102 forms a filling groove 10 with the inner wall of the tray, and / or the filling surface 102 forms a filling groove 10 with the end face of the battery pack.

[0112] The tray includes a base plate 20 and a frame 30, which together form a receiving cavity. The filling structure and the battery pack are located within the receiving cavity. The filling structure has been clearly explained above and will not be repeated here.

[0113] The base plate 20 serves as the foundation of the tray, providing a stable support platform for the entire battery pack. The frame 30 surrounds the edge of the base plate 20, forming a closed or semi-closed space to house the battery pack. The filling structure is positioned opposite the frame 30, and their interlocking relationship effectively blocks external environmental factors from affecting the battery pack. Perpendicular to the base plate 20, the filling structure fills the gap between the battery pack and the sidewalls of the housing, preventing moisture, dust, and other impurities from entering the battery pack from above or below. The combination of the frame 30 and the filling structure also helps prevent electrolyte leakage to some extent. If electrolyte leakage occurs under abnormal conditions, the frame 30 acts as a barrier, while the filling structure further absorbs and seals the leaked electrolyte, reducing electrolyte pollution to the external environment and the risk of short circuits caused by electrolyte leakage.

[0114] In one specific implementation, the end plate 100 is mounted on the base plate 20 and connected to the frame 30. The filling surface 102, the inner wall of the base plate 20, and the frame 30 enclose a filling groove 10, and the battery pack is located on the side of the end plate 100 away from the filling groove 10. In this embodiment, the battery pack is located on the side of the end plate 100 away from the filling groove 10. This structural design makes the battery pack physically more robust, able to withstand certain external impacts, and effectively protects the internal battery pack from damage.

[0115] This application also provides an electrical device, including a device body and the aforementioned battery pack, the battery pack being capable of providing electrical energy to the device body. The device body can be one of vehicle equipment, industrial equipment, or transportation equipment. The structure of the battery pack has been described above, and this electrical device possesses all the technical effects of the aforementioned battery pack.

[0116] The implementation principle of the filling structure, battery pack, and electrical equipment in this application is as follows: The filling structure provided in this application includes an end plate 100 and a filler 300. The filler surface 102 of the end plate 100 is positioned opposite to the frame 30. The filler 300 is disposed on the end plate 100 and has a guide channel 301. The first end of the guide channel 301 is located outside the filling groove 10, and the second end of the guide channel 301 is connected to the filling groove 10. When injecting glue into the filling groove 10, glue is poured through the first end of the guide channel 301, and the glue is injected into the filling groove 10 through the second end of the guide channel 301. By setting the specific structure formed by the end plate 100 and the filler 300, a clear and stable channel for glue injection is provided. The first end of the guide channel 301 is located outside the filling groove 10, which facilitates the operator or injection equipment to accurately inject the glue into the guide channel 301, allowing the glue to enter the area to be filled more smoothly. The glue is less likely to leak out of the glue filling tank 10, which greatly reduces the possibility of glue overflow and thus improves production line efficiency.

[0117] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein.

[0118] The embodiments in this application are intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0119] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A filling structure, characterized in that, include: End plate (100), the end plate (100) having a filling surface (102) for forming a filling groove (10); A filler (300) is disposed on the end plate (100). The filler (300) has a glue guiding channel (301). The first end of the glue guiding channel (301) is used for glue filling, and the second end of the glue guiding channel (301) is used to communicate with the glue filling groove (10) for glue injection.

2. The filling structure according to claim 1, characterized in that, The end plate (100) has a connecting groove (101), and part of the filling component (300) is located in the connecting groove (101).

3. The filling structure according to claim 2, characterized in that, The filler (300) includes a filling part (310) and a connecting part (320) connected to the filling part (310). The glue-filling part (310) is provided with the glue-guiding channel (301), and the connecting part (320) is connected to the end plate (100).

4. The filling structure according to claim 3, characterized in that, The glue-filling part (310) is inserted into the connecting groove (101), and the connecting part (320) is located outside the connecting groove (101) and connected to the glue-filling surface (102).

5. The filling structure according to claim 4, characterized in that, The connecting part (320) is connected to the filling surface (102) by an adhesive (400).

6. The filling structure according to claim 3, characterized in that, The glue-filling part (310) is provided with a glue-filling hole (302), and the first end of the glue-guiding channel (301) is glue-filled through the glue-filling hole (302); and / or, the connecting part (320) is provided with a glue-injection hole (311), and the second end of the glue-guiding channel (301) is connected to the glue-filling groove (10) through the glue-injection hole (311).

7. The filling structure according to claim 6, characterized in that, The opening directions of the glue-filling hole (302) and the glue-injection hole (311) intersect.

8. The filling structure according to claim 2, characterized in that, The connecting groove (101) is opened along a first direction, which is parallel to the height direction of the end plate (100); In the first direction, the first end of the adhesive channel (301) is higher than the second end of the adhesive channel (301).

9. The filling structure according to any one of claims 2-8, characterized in that, It also includes a seal (200) disposed on the filling surface (102), and the side of the seal (200) facing away from the end plate (100) is used to close the filling groove (10).

10. The filling structure according to claim 9, characterized in that, In the first direction, the height of the filler (300) is less than the groove height of the connecting groove (101), the top end of the filler (300) is connected to the sealant (200), and the first direction is parallel to the height direction of the end plate (100).

11. The filling structure according to claim 9, characterized in that, The sealing element (200) includes a first extension (210) extending along a second direction and two second extensions (220) respectively connected to the two ends of the first extension (210). The second extensions (220) extend along a first direction, which is parallel to the extension direction of the end plate (100), and the first direction is parallel to the height direction of the end plate (100). The first end of the second extension (220) is connected to the end of the first extension (210), and the second end of the second extension (220) is used to connect to the bottom of the filling groove (10).

12. The filling structure according to any one of claims 1-8, characterized in that, At least two filler elements (300) are provided, and the two filler elements (300) are arranged along a second direction, which is parallel to the extension direction of the end plate (100).

13. The filling structure according to any one of claims 1-8, characterized in that, It also includes a seal (200), which is disposed on the filling surface (102), and the side of the seal (200) facing away from the end plate (100) is used to close the filling groove (10). In the third direction, the thickness of the seal (200) is greater than the thickness of the filler (300) extending beyond the filler surface (102); The third direction is perpendicular to the filling surface (102).

14. The filling structure according to claim 13, characterized in that, The seal (200) has a compressed state and an expanded state. When the seal (200) is compressed, its surface is covered with a plastic seal film. After the plastic seal film is broken, the seal (200) can extend along the third direction to change the seal (200) from the compressed state to the expanded state. When the seal (200) is in an expanded state, the thickness of the seal (200) is greater than the thickness of the filler (300) extending out of the filler surface (102).

15. A battery pack, characterized in that, Includes a tray, at least one filling structure as described in any one of claims 1-14, and at least one battery pack; The filling structure and the battery pack are disposed in the tray, the filling surface (102) and the inner wall of the tray form the filling groove (10), and / or the filling surface (102) and the end face of the battery pack form the filling groove (10).

16. The battery pack according to claim 15, characterized in that, The tray includes a base plate (20) and a frame (30), the base plate (20) and the frame (30) enclosing a receiving cavity, and the filling structure and the battery pack are disposed in the receiving cavity; The end plate (100) is disposed on the base plate (20) and connected to the frame (30). The glue filling surface (102), the base plate (20) and the inner wall of the frame (30) enclose the glue filling groove (10). The battery pack is disposed on the side of the end plate (100) away from the glue filling groove (10).

17. An electrical appliance, characterized in that, It includes a device body and a battery pack as described in claim 15 or 16; the battery pack is used to provide electrical energy to the device body.

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