Battery device and electric appliance

Abstract

The utility model provides a kind of battery device and electrical equipment, it is related to battery technical field, wherein, battery device, include: frame and sealing plate component.Frame one end has opening, sealing plate component covers in opening, and sealing frame.The sealing plate component includes first plate body and the second plate body fixedly connected with first plate body, first plate body covers the opening of frame, second plate body is set between the opening of frame and first plate body, first plate body extends to the outside of frame, and it is projected in frame to form first extension, second plate body extends to the outside of frame, and it is projected in frame to form second extension.First extension includes sequentially connected main body section, vertical section and bending section, second extension is set above main body section, bending section is set above second extension, and vertical section extends from main body section to bending section direction.The technical scheme of the application effectively solves the problem that the strength of the second extension of the second plate body is low and easy to deform.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery device and an electrical appliance. Background Technology

[0002] In related technologies, the battery of the battery device is housed inside a closed frame. A plate is disposed below the frame, which has a protruding portion, or extension, that extends from the inside of the frame to the outside, beyond the outer surface of the frame.

[0003] However, because the protrusion extends outward beyond the outer surface of the frame, the strength of the protrusion is low and it is prone to deformation. Utility Model Content

[0004] The main purpose of this utility model is to provide a battery device and electrical equipment to solve the problem of low strength and easy deformation of the extended part of the plate in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a battery device is provided, including a frame and a sealing plate assembly. One end of the frame has an opening, and the sealing plate assembly covers the opening and seals the frame. The sealing plate assembly includes a first plate and a second plate fixedly connected to the first plate. The first plate covers the opening of the frame, and the second plate is disposed between the opening of the frame and the first plate. The first plate extends outward from the frame and protrudes from the frame to form a first extension, and the second plate extends outward from the frame and protrudes from the frame to form a second extension. The first extension includes a main body segment, a vertical segment, and a bent segment connected sequentially. The second extension is disposed above the main body segment, and the bent segment is disposed above the second extension. The vertical segment extends from the main body segment towards the bent segment.

[0006] According to another aspect of the present invention, an electrical device is provided, including a battery device, wherein the battery device is the battery device described above.

[0007] The battery device using the technical solution of this utility model includes a frame and a sealing plate assembly. One end of the frame has an opening, and the sealing plate assembly covers the opening and seals the frame. The sealing plate assembly includes a first plate and a second plate fixedly connected to the first plate. The first plate covers the opening of the frame, and the second plate is disposed between the opening of the frame and the first plate. The first plate extends outward from the frame and protrudes from the frame to form a first extension, and the second plate extends outward from the frame and protrudes from the frame to form a second extension. The first extension includes a main body segment, a vertical segment, and a bent segment connected in sequence. The second extension is disposed above the main body segment, and the bent segment is disposed above the second extension. The vertical segment extends from the main body segment towards the bent segment. Thus, the second extension is fixed to the bent segment and the main body segment, effectively improving the structural strength of the second extension, reducing the risk of deformation, and thereby improving the strength of the second plate. Therefore, the technical solution of this application effectively solves the problem of low strength and easy deformation of the extended portion of the plate in related technologies. Attached Figure Description

[0008] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0009] Figure 1 A cross-sectional schematic diagram of an embodiment of the battery device according to the present invention is shown;

[0010] Figure 2 It shows Figure 1 A partial three-dimensional structural diagram of the battery device;

[0011] Figure 3 It shows Figure 2 An enlarged schematic diagram of point A of the battery device;

[0012] Figure 4 It shows Figure 1 A partial longitudinal sectional view of the battery device;

[0013] Figure 5 It shows Figure 1 A partial three-dimensional structural diagram of the outer flange of the first plate not welded to the outer side of the frame.

[0014] The above figures include the following reference numerals:

[0015] 1. Sealing plate assembly; 10. Frame; 101. Opening;

[0016] 20. Second plate; 21. Second plate body; 22. Second extension; 221. Interface; 222. Recess;

[0017] 30. First plate; 31. First plate body; 32. Main body segment; 33. Bending segment; 331. Clearance opening; 332. Flanged structure; 333. Sub-protective part; 34. Vertical segment; 35. Outward flange;

[0018] 40. Fastener; 41. First welding section; 42. Second welding section. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] According to one aspect of this application, a battery device is provided, such as... Figures 1 to 4As shown, an embodiment of the battery device includes a frame 10 and a sealing plate assembly 1. One end of the frame 10 has an opening 101, and the sealing plate assembly 1 covers the opening 101 and seals the frame 10. The sealing plate assembly 1 includes a first plate 30 and a second plate 20 fixedly connected to the first plate 30. The first plate 30 covers the opening of the frame 10, and the second plate 20 is disposed between the opening of the frame 10 and the first plate 30. The first plate 30 extends outward from the frame 10 and protrudes from the frame 10 to form a first extension, and the second plate 20 extends outward from the frame 10 and protrudes from the frame 10 to form a second extension 22. The first extension includes a main body segment 32, a vertical segment 34, and a bent segment 33 connected in sequence. The second extension 22 is disposed above the main body segment 32, and the bent segment 33 is disposed above the second extension 22. The vertical segment 34 extends from the main body segment 32 towards the bent segment 33.

[0023] In the embodiment of the battery device, the second extension 22 is fixed to the bent section 33 and the main body section 32. This effectively improves the structural strength of the second extension 22 and reduces the risk of deformation. Therefore, the technical solution of the embodiment of the battery device effectively solves the problem of low strength and easy deformation of the extended portion of the plate in the related art.

[0024] It should be noted that one end of the frame 10 mentioned above can be the upper end or the lower end of the frame 10, and the opening 101 is the upper frame opening at the upper end of the frame 10 or the lower frame opening at the lower end of the frame 10.

[0025] The battery assembly also includes a fixing member 40, through which the bent section 33 and the main body section 32 are fixedly connected to clamp the second extension 22. Since the bent section 33 is bent relative to the main body section 32 and positioned above the second extension 22, the second extension 22 is reliably fixed to the bent section 33 and the main body section 32.

[0026] The fastener 40 can pass through the second extension 22 to connect the bent section 33 and the main body section 32, or the fastener 40 can connect the bent section 33 and the main body section 32 without passing through the second extension 22. The fastener 40 is preferably a screw, bolt, or rivet.

[0027] like Figures 2 to 5 As shown, the bent section 33 is arranged to abut against the second plate 20. This increases the contact area between the bent section 33 and the second plate 20, thereby improving the support effect on the second extension 22 and reducing the risk of deformation of the second extension 22 due to external impact.

[0028] like Figures 2 to 5As shown, the first plate 30 also includes a bent vertical section 34 connecting the main body section 32 and the bent section 33. In the length direction Y of the frame 10, the distance 'a' between the bent vertical section 34 and the second extension 22 satisfies: 0.3mm ≤ amm ≤ 5mm. Thus, when the distance 'a' between the bent vertical section 34 and the second extension 22 is less than 0.3mm, it prevents the bent vertical section 34 from easily interfering with the second plate 20 during assembly, thus avoiding poor assembly efficiency. When the distance 'a' between the bent vertical section 34 and the second extension 22 is greater than 5mm, it prevents poor connection strength between the bent section 33 and the bent vertical section 34, which would result in poor fixing and protection strength of the bent section 33 for the protrusion of the second plate 20, making the second plate 20 susceptible to vibration and thus affecting the heat exchange efficiency of the battery.

[0029] The distance 'a' between the bent vertical section 34 and the second extension 22 is preferably 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5mm. mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3. 8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm or 5.0mm.

[0030] like Figures 2 to 5 As shown, in order to reduce the assembly difficulty of the bending section 33 and reduce interference with the second plate 20, the bending section 33 includes at least two sub-protective parts 333.

[0031] like Figures 2 to 5 As shown, the dimension b of the sub-protective part 333 along the width direction X of the frame 10 satisfies: 4mm ≤ amm ≤ 45mm. Thus, when the dimension b of the sub-protective part 333 along the width direction X of the frame 10 is less than 4mm, it can prevent poor protective effect of the sub-protective part 333; when the dimension b of the sub-protective part 333 along the width direction X of the frame 10 is greater than 45mm, it can prevent high assembly difficulty.

[0032] The dimension b of the sub-protective part 333 along the width direction X of the frame 10 is preferably 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm or 45mm.

[0033] like Figures 2 to 5 As shown, in order to reduce the assembly difficulty of the bending section 33 and reduce interference to the second plate 20, each sub-protective part 333 has a flange structure 332 at the end facing the frame 10.

[0034] like Figures 2 to 5 As shown, the flange structure of all sub-protective parts 333 is integrally formed. In this way, the flange structure of all sub-protective parts 333, which is integrally formed, has high structural strength and can ensure the protective effect of the bending section 33.

[0035] like Figures 2 to 5 As shown, the dimension cmm of the flange structure 332 along the height direction Z of the frame 10 satisfies: 5mm ≤ cmm ≤ 70mm. This dimension range ensures the contact area between the flange structure 332 and the outer surface of the frame, thereby improving the support effect on the second extension 22 and reducing the risk of deformation of the second extension 22 due to external impact.

[0036] The preferred dimensions (c mm) of the flange structure 332 along the height direction Z of the frame 10 are 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, and 35 mm. 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, or 70mm.

[0037] like Figures 2 to 5 As shown, the first plate 30 also includes a first plate body 31 connected to the main body segment 32, and the second plate 20 includes a second plate body 21 covering the opening 101. The first plate body 31 is disposed below the second plate body 21. In this way, the first plate body 31 can improve the structural strength of the first plate 30, so that the first plate 30 can reliably cover the opening 101 and ensure the structural effect of the sealing frame 10.

[0038] like Figures 2 to 5 As shown, the first plate body 31, main body segment 32, bent vertical segment 34, and bent segment 33 are integrally formed. In this way, the integrally formed first plate body 31, main body segment 32, bent vertical segment 34, and bent segment 33 have high structural strength, which can ensure the protective effect of the first plate 30.

[0039] like Figures 1 to 3 As shown, the bent section 33 abuts against the outer surface of the frame 10. By having the bent section 33 directly abut against the outer surface of the frame 10, the contact area between the second extension 22 and the frame 10 is increased, thereby improving the support effect on the second extension 22 and reducing the risk of deformation of the second extension 22 due to external impact.

[0040] like Figures 1 to 3 As shown, the bent section 33 is welded to the outer surface of the frame 10. Welding provides a stronger rigid connection between the bent section 33 and the outer surface of the frame 10, enhancing the stability of the entire structure and ensuring that the second extension 22 is not easily deformed under external pressure.

[0041] like Figures 2 to 5 As shown, the second extension 22 is provided with a recess 222 to avoid the fastener 40. By designing the recess 222 on the second extension 22, interference between the fastener 40 and the second plate can be avoided during installation, ensuring that the fastener 40 can firmly connect the bent section 33 and the main body section 32, thereby effectively enhancing the protection of the second extension 22.

[0042] like Figures 2 to 5 As shown, the first plate 30 also includes a bent vertical section 34 connecting the main body section 32 and the bent section 33. In the protruding direction of the second extension 22, there is a first distance H1mm between the bent vertical section 34 and the side wall of the recess 222. The first distance H1mm is greater than or equal to 5mm and less than or equal to 40mm. In the protruding direction of the second extension 22, the first distance H1mm between the bent vertical section 34 and the side wall of the recess 222 is controlled within a reasonable range, thereby ensuring that the first plate has sufficient coverage area to support and protect the second extension 22, and preventing interference with the fastener 40.

[0043] The first distance H1mm mentioned above is preferably 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, or 40mm.

[0044] It should be noted that the protrusion direction of the second extension 22 is along the length direction Y of the frame 10.

[0045] like Figures 2 to 5 As shown, the second extension 22 has a first dimension L1mm in the height direction Z of the frame 10, and a second distance H2mm between the main body section 32 and the bent section 33. The ratio of the first dimension L1mm to the second distance H2mm satisfies: 0.25≤L1 / H2≤0.95. This prevents L1mm / H2mm from being greater than 0.95, which would reduce the structural strength of the second extension 22, and prevents L1mm / H2mm from being less than 0.25, which would negatively impact the protective effect.

[0046] The first dimension L1mm mentioned above satisfies: 1mm ≤ L1mm ≤ 5mm. The first dimension L1mm is preferably 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, or 5mm.

[0047] The aforementioned second distance H2mm satisfies: 1.6mm ≤ H2mm ≤ 8mm. The preferred second distance H2mm is 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, or 4.7mm. m, 4.8mm, 4.9mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, 6.0mm, 6.1mm, 6.2mm, 6.3mm, 6. 4mm, 6.5mm, 6.6mm, 6.7mm, 6.8mm, 6.9mm, 7.0mm, 7.1mm, 7.2mm, 7.3mm, 7.4mm, 7.5mm, 7.6mm, 7.7mm, 7.8mm, 7.9mm or 8.0mm. like Figures 2 to 5 As shown, in the protruding direction of the second extension 22, the second extension 22 has a second dimension L2mm, and the main body segment 32 has a third dimension L3mm. The ratio of the second dimension L2mm to the third dimension L3mm satisfies: 0.7≤L2 / L3≤0.98. Controlling the ratio between the second dimension L2mm and the third dimension L3mm within the range of 0.7 to 0.98 helps to adjust the dimensions of the main body segment 32 so that it can fit tightly under the second extension 22 while ensuring sufficient structural strength.

[0048] The second dimension L2mm described above satisfies: 40mm ≤ L2mm ≤ 72mm. The preferred values ​​for the second dimension L2mm are 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, or 72mm.

[0049] The aforementioned third dimension L3mm satisfies: 42mm≤L2mm≤80mm. The preferred values ​​for the third dimension L3mm are 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm, 75mm, 76mm, 77mm, 78mm, 79mm, or 80mm.

[0050] like Figures 2 to 5 As shown, in the height direction Z of the frame 10, the thickness T1mm of the main body segment 32 is greater than or equal to 1mm and less than or equal to 5mm. Controlling the thickness T1mm of the main body segment 32 within this range ensures that it has sufficient mechanical strength to resist external impacts, while also reducing its own weight and minimizing its impact on the overall performance of the battery device.

[0051] The thickness T1mm of the main body segment 32 is preferably 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, or 5mm.

[0052] like Figures 2 to 5 As shown, in the height direction Z of the frame 10, the thickness T2mm of the bending segment 33 is greater than or equal to 1mm and less than or equal to 5mm. Determining the range of the thickness T2mm of the bending segment 33 in the height direction Z of the frame 10 ensures that its strength is sufficient to resist external damage without excessively increasing the weight of the battery device, thus balancing lightweight design and structural protection.

[0053] The thickness T2mm of the aforementioned bent segment 33 is preferably 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, or 5mm.

[0054] like Figures 2 to 5 As shown, the bent section 33 is fixed to the outer surface of the frame 10 by a connector. Using the connector to fix the bent section 33 to the outside of the frame 10 ensures that the bent section 33 can securely cover the second extension 22, thus improving the protective capability of the bent section 33.

[0055] like Figures 2 to 5 As shown, the connector is an upwardly bent outward flange 35. The design of the outward flange 35 not only serves as a connector to fix the bent section 33 to the frame 10, but its upward bending characteristic also further enhances the structural strength of the bent section 33, providing more stable protection for the second extension 22.

[0056] like Figures 2 to 5 As shown, the outer flange 35 is welded to the outer side of the frame 10. Welding the outer flange 35 to the outer side of the frame 10 forms a reliable joint position, enhancing the connection strength between the bent section 33 and the frame 10, ensuring that the bent section 33 does not deform, and providing continuous and stable protection for the second extension 22.

[0057] like Figures 2 to 5 As shown, in the height direction Z of the frame 10, there is a first welded section 41 between the outer flange 35 and the connector. The presence of the first welded section 41 in the height direction Z of the frame 10 strengthens the connection between the outer flange 35 and the frame 10, ensures the stability of the bent section 33 in the height direction, and reduces the risk of damage.

[0058] like Figures 2 to 5 As shown, in the width direction X of the frame 10, there is a second welded section 42 between the outer flange 35 and the connector. The second welded section 42 in the width direction X of the frame 10 further enhances the lateral stability of the bent section 33 by firmly connecting the outer flange 35 to the frame 10 in the width direction, and ensures effective protection of the second extension 22.

[0059] like Figures 2 to 5 As shown, the second welding section 42 extends from the end face of the first end of the outer flange 35 to the end face of the second end of the outer flange 35. The aforementioned second welding section 42 greatly improves the connection strength at the joint and ensures the reliability of the entire first plate 30.

[0060] like Figures 2 to 5 As shown, the second extension 22 is provided with an interface 221 for connecting to an external heat exchange pipeline. The bend 33 is provided with a clearance opening 331 to avoid the interface 221. The clearance opening 331 on the bend 33 avoids the interface 221, allowing the external heat exchange pipeline or manifold to connect to the interface 221 without obstruction. At the same time, the clamping action of the first plate 30 effectively protects the structure around the interface 221 from damage.

[0061] like Figures 2 to 5 As shown, for ease of setting and processing, the shape of the clearance opening 331 is circular, rectangular, elliptical, or trapezoidal.

[0062] like Figures 2 to 5 As shown, there are two fasteners 40, which are located on both sides of the second extension 22 along the width direction X of the frame 10. By using two fasteners 40 on both sides of the second extension 22, the connecting force between the bent section 33 and the main body section 32 can be evenly distributed. Furthermore, by increasing the number of connection points, the second extension 22 is more securely fixed, further improving the structural strength of the second extension 22.

[0063] like Figures 2 to 5 As shown, in order to facilitate processing and dissipate heat from the battery in the frame, the first plate 30 is a bottom protective plate, and the second plate 20 is a heat exchange plate with heat exchange channels inside.

[0064] The second plate 20 mentioned above is preferably a heat exchange plate, which can serve as a component for regulating battery temperature. The heat exchange plate is made of the following material / composed form: A heat exchange channel is provided inside the heat exchange plate. This channel is used to circulate the heat exchange medium, which can be a gas (air), liquid (such as water, alcohol, refrigerant, oil, etc.), or solid (such as thermally conductive adhesive, thermally conductive solder paste, etc.). The heat exchange channel has an inlet and an outlet for the heat exchange medium. The heat exchange medium can enter the heat exchange channel through the inlet, exchange heat with the battery cells, and then exit through the outlet, thus achieving heat exchange with the battery cells.

[0065] The heat exchange plate can exchange heat with the battery cell. The heat exchange plate can be made of materials with high thermal conductivity, such as copper; alternatively, a heat pipe can be installed inside the heat exchange plate, which can quickly transfer heat through the principle of thermal convection; still others, a channel can be installed inside the heat exchange plate, connecting to a heating or cooling device, and a liquid medium can flow within the channel, enabling efficient heat exchange. The heat exchange plate includes a heating element and an electrical connector. The heating element can be a heating wire, a heating film, or a heating plate; this application is not limited to these. The heat exchange plate can be made of metallic materials, such as aluminum alloy or magnesium alloy; it can also be a plastic component.

[0066] The second plate 20 mentioned above can also be a heat exchange pipe.

[0067] In this embodiment, the frame refers to a closed or semi-closed structure made of materials such as metal and plastic. It serves as the physical carrier of the battery pack, and its design and manufacturing must meet the safety, reliability, and functionality requirements of the battery device under different usage scenarios. The frame provides installation space for the battery pack, BMS, cooling system, electrical connection components, etc., and through a reasonable structural design, fixes these components within the frame, ensuring they maintain a relatively stable position during battery device operation and preventing damage or loosening of connections due to vibration, impact, or other factors. The frame can be cast from materials such as steel plates or aluminum alloys, or lightweight materials such as glass fiber reinforced composite materials or carbon fiber reinforced composite materials. The shape of the frame can be cylindrical, cuboid, cube, etc.

[0068] The aforementioned battery device includes a battery pack composed of multiple batteries connected in series and / or in parallel, a battery management system (BMS), a thermal management system, an electrical connection system (high-voltage / low-voltage connectors, wiring harnesses, etc.), structural components (casing, brackets, etc.), and protective components, etc., and the above components are placed in a frame and sealed with a cover plate to form a complete functional unit that can directly output electrical energy.

[0069] The aforementioned batteries can be secondary or primary batteries, and can also be lithium-ion batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, or magnesium-ion batteries, etc., but this embodiment of the invention is not limited to these. Batteries can be cylindrical, flat, cuboid, or other shapes, but this embodiment of the invention is not limited to these shapes either. Batteries are generally classified into three types according to their packaging method: cylindrical batteries, square batteries, and pouch batteries, but this embodiment of the invention is not limited to these types either.

[0070] According to another aspect of this application, an electrical device is provided, an embodiment of which includes a battery device, the battery device being the one described above. The battery device is capable of providing electrical energy to the electrical device. Since the aforementioned battery device can solve the problem of low strength and easy deformation of the extended portion of the plate in the related art, the electrical device including this battery device can solve the same technical problem.

[0071] The electrical equipment disclosed in this utility model embodiment can be, but is not limited to, vehicles, mobile phones, tablets, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be fuel-powered vehicles, natural gas vehicles, new energy vehicles, or rail vehicles; new energy vehicles can be pure electric vehicles, hybrid vehicles, or range-extended vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. When the electrical equipment is a vehicle, the battery device can be located at the bottom, front, or rear of the vehicle.

[0072] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0074] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0075] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery device, characterized in that, include: A frame (10) having an opening (101) at one end; A sealing plate assembly (1) covers the opening (101) and seals the frame (10). The sealing plate assembly (1) includes a first plate (30) and a second plate (20) fixedly connected to the first plate (30). The first plate (30) covers the opening of the frame (10). The second plate (20) is disposed between the opening of the frame (10) and the first plate (30). The first plate (30) extends outward from the frame (10) and protrudes from the frame (10) to form a first extension. The second plate (20) extends outward from the frame (10) and protrudes from the frame (10) to form a second extension (22). The first extension includes a main body segment (32), a vertical segment (34) and a bent segment (33) connected in sequence. The second extension (22) is disposed above the main body segment (32), the bent segment (33) is disposed above the second extension (22), and the vertical segment (34) extends from the main body segment (32) toward the bent segment (33).

2. The battery device according to claim 1, characterized in that, The bent section (33) is abutted against the second plate (20).

3. The battery device according to claim 1, characterized in that, In the length direction (Y) of the frame (10), the distance a between the vertical segment (34) and the second extension (22) satisfies: 0.3mm≤amm≤5mm.

4. The battery device according to claim 1, characterized in that, The bent section (33) includes at least two sub-protective parts (333).

5. The battery device according to claim 4, characterized in that, The dimension b of the sub-protective part (333) along the width direction (X) of the frame (10) satisfies: 4mm≤amm≤45mm.

6. The battery device according to claim 4, characterized in that, Each of the sub-protective parts (333) has a flange structure (332) at one end facing the frame (10).

7. The battery device according to claim 6, characterized in that, The flange structure (332) of all the sub-protective parts (333) is integrally formed.

8. The battery device according to claim 6, characterized in that, The dimension cmm of the flange structure (332) along the height direction (Z) of the frame (10) satisfies: 5mm≤cmm≤70mm.

9. The battery device according to claim 1, characterized in that, The first plate (30) further includes a first plate body (31) connected to the main body segment (32), and the second plate (20) includes a second plate body (21) covering the opening (101), with the first plate body (31) disposed below the second plate body (21).

10. The battery device according to claim 9, characterized in that, The first plate body (31), the main body segment (32), the vertical segment (34) and the bending segment (33) are integrally formed.

11. The battery device according to claim 1, characterized in that, The bent section (33) abuts against the outer surface of the frame (10); and / or, the bent section (33) is welded to the outer surface of the frame (10).

12. The battery device according to claim 1, characterized in that, The battery device also includes a fixing member (40), through which the bent section (33) and the main body section (32) are fixedly connected to clamp the second extension (22).

13. The battery device according to claim 12, characterized in that, The second extension (22) is provided with a recess (222) that avoids the fixing member (40). In the protruding direction of the second extension (22), there is a first distance H1mm between the vertical section (34) and the side wall of the recess (222). The first distance H1mm is greater than or equal to 5mm and less than or equal to 40mm.

14. The battery device according to claim 1, characterized in that, The second extension (22) has a first dimension L1mm in the height direction (Z) of the frame (10), and there is a second distance H2mm between the main body segment (32) and the bent segment (33). The ratio of the first dimension L1mm to the second distance H2mm satisfies: 0.25≤L1 / H2≤0.

95.

15. The battery device according to claim 14, characterized in that, In the protruding direction of the second extension (22), the second extension (22) has a second dimension L2mm, and the main body segment (32) has a third dimension L3mm. The ratio of the second dimension L2mm to the third dimension L3mm satisfies: 0.7≤L2 / L3≤0.

98.

16. The battery device according to claim 1, characterized in that, In the height direction (Z) of the frame (10), the thickness T1mm of the main body segment (32) is greater than or equal to 1mm and less than or equal to 5mm; and / or, in the height direction (Z) of the frame (10), the thickness T2mm of the bent segment (33) is greater than or equal to 1mm and less than or equal to 5mm.

17. The battery device according to claim 1, characterized in that, The bent section (33) is fixed to the outer side of the frame (10) by a connector.

18. The battery device according to claim 17, characterized in that, The connector is an upwardly folded outward flange (35).

19. The battery device according to claim 18, characterized in that, The outer flange (35) is welded to the outer side of the frame (10); in the height direction (Z) of the frame (10), there is a first welding section (41) between the outer flange (35) and the connector; in the width direction (X) of the frame (10), there is a second welding section (42) between the outer flange (35) and the connector, the second welding section (42) extending from the end face of the first end of the outer flange (35) to the end face of the second end of the outer flange (35).

20. The battery device according to claim 1, characterized in that, The second extension (22) is provided with an interface (221), and the bent section (33) is provided with a clearance opening (331) to avoid the interface (221).

21. The battery device according to claim 20, characterized in that, The shape of the clearance opening (331) is circular, rectangular, elliptical, or trapezoidal.

22. The battery device according to claim 1, characterized in that, The first plate (30) is a bottom protective plate, and the second plate (20) is a heat exchange plate, wherein a heat exchange channel is provided inside the heat exchange plate.

23. The battery device according to claim 1, characterized in that, The battery device also includes a fixing member (40), the bent section (33) and the main body section (32) are fixedly connected by the fixing member (40) to clamp the second extension (22). There are two fixing members (40), and the two fixing members (40) are located on both sides of the second extension (22) along the width direction (X) of the frame (10).

24. An electrical device, comprising a battery, characterized in that, The battery device is the battery device according to any one of claims 1 to 23.

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