Flange for bell jar standing cavity and bell jar standing cavity

Abstract

The utility model provides a flange used for a bell jar standing cavity and the bell jar standing cavity, and the flange used for the bell jar standing cavity comprises an annular flange main body and an external connection part used for being connected with an external base, the external connecting part is arranged on the outer side wall of the flange main body; an annular butt joint groove used for being in butt joint with a bell jar standing cavity is formed in the upper end of the inner side wall of the flange body, and the bottom wall of the annular butt joint groove is connected with the inner side wall of the flange body through a first inclined face. The first inclined face is used for being matched with the bottom end face of the bell jar standing cavity to form a first groove used for welding when the bell jar standing cavity is embedded in the annular butt joint groove. According to the utility model, the effective length of the weld joint at the joint of the flange and the bell jar standing cavity is increased, so that the stress level of the weld joint in unit length is effectively reduced, the connection stability between the flange and the bell jar standing cavity is enhanced, and the overall rigidity of a final product is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery static storage technology, specifically to a flange for a bell jar static storage cavity and the bell jar static storage cavity. Background Technology

[0002] In the battery manufacturing process, settling is a crucial step. Batteries need to be placed in a settling chamber to ensure stable performance and quality. In practical applications, the settling chamber usually needs to be fixed to an external base with the assistance of other connecting components to form a sealed space for the battery to settle.

[0003] However, due to limitations in structural design, the existing connecting components often have poor stability when connected to the stationary cavity. For example, traditional flange connecting components often use simple fillet welds to connect to the stationary cavity. When faced with long-term alternating loads, fatigue cracks are prone to appear at the root of the weld, posing a risk of structural fatigue failure and seriously affecting the reliability and durability of the stationary cavity. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a flange for a bell-shaped stationary cavity and a bell-shaped stationary cavity. The flange provided by this utility model effectively reduces the stress level per unit length of the weld, enhances the connection stability between the bell-shaped stationary cavity and the flange, and thus improves the overall rigidity of the bell-shaped stationary cavity. The specific technical solution is as follows:

[0005] A first aspect of this utility model provides a flange for a bell jar stationary cavity, comprising: an annular flange body and an external connection portion for connecting to an external base;

[0006] The external connection part is located on the outer side wall of the flange body;

[0007] The upper end of the inner wall of the flange body is provided with an annular docking groove for docking with the bell jar stationary cavity. The bottom wall of the annular docking groove is connected to the inner wall of the flange body through a first inclined surface. The first inclined surface is used to cooperate with the bottom end face of the bell jar stationary cavity to form a first bevel for welding when the bell jar stationary cavity is embedded in the annular docking groove.

[0008] In one specific embodiment, the sidewall of the annular butt groove is connected to the upper end face of the flange body via a second inclined surface. The second inclined surface is used to cooperate with the outer wall of the bell jar stationary cavity to form a second bevel for welding when the bell jar stationary cavity is embedded in the annular butt groove.

[0009] In one specific embodiment, there is a gap between the sidewall of the annular docking groove and the outer wall of the bell jar stationary cavity, and the upper end of the gap is connected to the second bevel.

[0010] In one specific embodiment, the first bevel includes a V-shaped bevel.

[0011] In one specific embodiment, one of the bottom wall of the annular docking groove and the bottom end face of the bell jar stationary cavity is provided with a plugging protrusion, and the other is provided with a plugging groove for plugging into the plugging protrusion.

[0012] In one specific embodiment, a plurality of radially penetrating through holes are spaced apart along the circumferential direction on the side wall of the flange body, and fixing bolts for fixing and connecting the bell jar stationary cavity are inserted through the through holes.

[0013] In one specific embodiment, the vertical depth of the annular mating groove is between 18 mm and 22 mm; and / or, the width of the annular mating groove is between 14 mm and 18 mm.

[0014] In one specific embodiment, the external connection portion includes a plurality of snap-fit ​​protrusions spaced at intervals along the outer sidewall of the flange body.

[0015] In one specific embodiment, the snap-fit ​​protrusion is integrally formed with the flange body.

[0016] A second aspect of this utility model provides a bell jar stationary cavity, including the flange for the bell jar stationary cavity described in any of the above embodiments.

[0017] This utility model has at least the following beneficial effects:

[0018] This utility model provides a flange for a bell-shaped cavity and the bell-shaped cavity itself. The flange body has an annular butt groove, and the bottom wall of the annular butt groove is connected to the inner wall of the flange body via a first inclined surface. This allows the bell-shaped cavity, embedded in the annular butt groove, to mate with the first inclined surface to form a first bevel. Workers can then perform fillet welds between the upper end face of the flange body and the outer wall of the bell-shaped cavity, and simultaneously weld the first bevel to form another weld. Based on this, this utility model achieves the connection between the flange and the bell-shaped cavity through a composite welding structure combining two welds. Compared to traditional welding methods, this solution increases the effective length of the weld at the connection between the flange and the bell-shaped cavity, thereby effectively reducing the stress level per unit length of the weld, enhancing the connection stability between the flange and the bell-shaped cavity, and improving the overall rigidity of the final product. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional schematic diagram of the bell jar stationary cavity being embedded in the annular docking groove in one embodiment;

[0021] Figure 2 for Figure 1 A partial three-dimensional schematic diagram of the bell jar stationary cavity being embedded in the annular docking groove in the embodiment;

[0022] Figure 3 This is a cross-sectional schematic diagram of the bell jar stationary cavity embedded in the annular docking groove in another embodiment;

[0023] Figure 4 for Figure 3 A schematic cross-sectional view of the bell jar's stationary cavity when it is not embedded in the annular docking groove in the embodiment;

[0024] Figure 5 A schematic diagram of the overall structure of the bell jar stationary cavity provided by this utility model;

[0025] Figure 6 A schematic cross-sectional view of the overall structure of the bell jar static cavity provided by this utility model;

[0026] Figure 7 for Figure 6 Detailed diagram A.

[0027] Figure label:

[0028] 1-Flange body; 11-External connection; 111-Snap-fit ​​protrusion; 12-Annular butt groove; 13-Through hole; 2-Bell jar stationary cavity; 21-Screw hole; 3-First bevel; 4-First groove; 5-Second bevel; 6-Second groove; 7-Gap; 8-Plug-in protrusion; 9-Plug-in groove; 10-Fixing bolt; 14-V-groove weld; 15-Fillet weld. Detailed Implementation

[0029] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0030] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of the present invention, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0031] In various embodiments of this utility model, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0032] The terms used in the various embodiments of this utility model (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this utility model, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0033] It should be noted that, in this utility model, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Please refer to Figures 1 to 7 The present invention provides a flange for a bell jar stationary cavity, comprising: an annular flange body 1 and an external connection part 11 for connecting to an external base.

[0035] Specifically, the external connection part 11 is provided on the outer side wall of the flange body 1. After the flange body 1 is connected to the bell jar stationary cavity 2, the bell jar stationary cavity 2 can be connected to the external base through the external connection part 11, thereby being set on the external base and thus forming a sealed space for the battery to be stationary. The external base is not shown in the figure.

[0036] An annular mating groove 12 is provided at the upper end of the inner wall of the flange body 1 for docking with the bell jar stationary cavity 2. The upper end of the annular mating groove 12 extends through the upper end face of the flange body 1. The bottom wall of the annular mating groove 12 is connected to the inner wall of the flange body 1 through a first inclined surface 3. The first inclined surface 3 is used to cooperate with the bottom end face of the bell jar stationary cavity 2 to form a first bevel 4 for welding when the bell jar stationary cavity 2 is embedded in the annular mating groove 12.

[0037] In practical applications, workers can vertically embed the bell-shaped cavity 2 into the annular butt groove 12 from top to bottom, so that the first inclined surface 3 mates with the bottom end face of the bell-shaped cavity 2 to form a first bevel 4 for welding. Thus, workers can perform fillet welds between the upper end face of the flange body 1 and the outer wall of the bell-shaped cavity 2, and simultaneously weld the first bevel 4 to form another weld. Based on this, the flange for the bell-shaped cavity provided by this utility model can achieve connection with the bell-shaped cavity 2 through a composite welding structure combining two welds. Compared with traditional welding methods, this solution increases the effective length of the weld at the connection between the flange body 1 and the bell-shaped cavity 2, thereby effectively reducing the stress level per unit length of the weld, enhancing the connection stability between the flange body 1 and the bell-shaped cavity 2, and improving the overall rigidity of the final product.

[0038] Preferably, the first bevel 4 includes a V-shaped bevel, thereby realizing a composite welding structure that combines the outer corner weld with the inner V-shaped bevel weld.

[0039] Alternatively, please refer to Figure 1 The vertical depth D of the annular docking groove 12 can be between 18mm and 22mm, and the width W of the annular docking groove 12 can be between 14mm and 18mm. In practical applications, the width W of the annular docking groove 12 can be adjusted according to the wall thickness of the bell jar stationary cavity 2, for example, it can be 16mm. The vertical depth D of the annular docking groove 12 is preferably 20mm.

[0040] In one specific embodiment, please refer again to Figure 1 The side wall of the annular docking groove 12 and the upper end face of the flange body 1 can be connected by the second inclined surface 5. The second inclined surface 5 is used to cooperate with the outer wall of the bell jar stationary cavity 2 to form a second bevel 6 for welding when the bell jar stationary cavity 2 is embedded in the annular docking groove 12.

[0041] Understandably, in this embodiment, by setting the second inclined surface 5 to form the second bevel 6, the welding material of the corner weld can penetrate into the welding part more easily, thereby ensuring that the root of the weld can be fully fused, so as to avoid the situation of incomplete penetration as much as possible.

[0042] Furthermore, after the annular butt groove 12 is embedded in the bell-shaped cavity 2, a gap 7 can be provided between the side wall of the annular butt groove 12 and the outer wall of the bell-shaped cavity 2, and the upper end of the gap 7 is connected to the second bevel 6. Thus, by setting the gap 7, this embodiment also allows the welding material to be better filled, thereby effectively reducing the porosity between the side wall of the annular butt groove 12 and the outer wall of the bell-shaped cavity 2, and effectively improving the density and strength of the weld.

[0043] In one specific embodiment, please refer to Figure 3 and Figure 4 The bottom wall of the annular mating groove 12 and the bottom end face of the bell-shaped stationary cavity 2 are provided with a plug-in protrusion 8 on one side and a plug-in groove 9 on the other side for plugging into the plug-in protrusion 8. Thus, the bell-shaped stationary cavity 2 can be embedded in the annular mating groove 12 by plugging the plug-in protrusion 8 into the plug-in groove 9. Understandably, by plugging the plug-in protrusion 8 into the plug-in groove 9, it serves two purposes: firstly, it facilitates positioning and assembly, making it easier to initially position the flange body 1 and the bell-shaped stationary cavity 2, improving operational convenience, and reducing assembly errors; secondly, the plug-in protrusion 8 into the plug-in groove 9 also strengthens the connection, reducing the burden on the weld when bearing loads, thereby improving the connection stability and overall strength between the flange body 1 and the bell-shaped stationary cavity 2.

[0044] In one specific embodiment, please refer again to Figure 3 and Figure 4 The flange body 1 has multiple radially penetrating through holes 13 spaced circumferentially along its side wall. Fixing bolts 10 for securing the bell jar's stationary cavity 2 pass through these through holes 13. It should be noted that... Figure 3 and Figure 4 Since this is a cross-sectional diagram, only one through hole 13 and one fixing bolt 10 are shown.

[0045] Specifically, in this embodiment, a plurality of screw holes 21 are spaced apart along a circumferential direction on the outer wall of the bell-shaped stationary cavity 2, with each screw hole 21 corresponding to a plurality of through holes 13. After the bell-shaped stationary cavity 2 is fitted into the annular mating groove 12, the screw holes 21 correspond to the through holes 13. At this time, one end of the fixing bolt 10 passes through the through hole 13 and is threaded into the screw hole 21, while the other end abuts against the outer wall of the flange body 1, thereby fixing the flange body 1 to the bell-shaped stationary cavity 2. In this embodiment, the connection stability between the flange body 1 and the bell-shaped stationary cavity 2 can be further improved by setting the fixing bolt 10, thereby improving the overall strength after the flange body 1 and the bell-shaped stationary cavity 2 are connected.

[0046] In one specific embodiment, please refer to Figure 5 The external connection part 11 may include a plurality of snap-fit ​​protrusions 111 spaced along the outer side wall of the flange body 1 in a circumferential direction. Specifically, the snap-fit ​​protrusions 111 can be connected to the external base by snapping with the external base to fix the bell housing cavity 2 connected to the flange body 1 to the external base.

[0047] Preferably, the snap-fit ​​protrusion 111 is integrally formed with the flange body 1, thereby improving the overall structural strength of the flange.

[0048] It should be noted that, in practical applications, the flange for the bell jar stationary cavity provided by this utility model can achieve a seal with the external base through other sealing structures, thereby forming a sealed space in the bell jar stationary cavity 2. The specific sealing structure is not limited in this utility model.

[0049] Please refer to Figures 5 to 7 The present invention also provides a bell jar stationary cavity, including the flange for the bell jar stationary cavity described in any of the above embodiments.

[0050] For example, the bell-shaped cavity 2 has a bell-shaped structure with an open bottom, and the edge of the opening at the bottom of the bell-shaped cavity 2 is embedded in the annular mating groove 12. The bottom end face of the bell-shaped cavity 2 mates with the first inclined surface 3 to form a first bevel 4 for welding. A V-shaped bevel weld 14 is provided in the first bevel 4 by welding, which connects the bell-shaped cavity 2 to the flange body 1. In addition, a fillet weld 15 is also provided between the outer wall of the bell-shaped cavity 2 and the upper end face of the flange body 1 by welding, which connects the bell-shaped cavity 2 to the flange body 1. Thus, the bell-shaped cavity of this invention effectively increases the length of the weld at the connection between the flange body 1 and the bell-shaped cavity 2, effectively reduces the stress level per unit length of the weld, thereby enhancing the connection stability with the flange body 1 and improving the overall rigidity of the product.

[0051] In summary, this utility model provides a flange and a bell-shaped stationary cavity for a bell jar. The flange body has an annular butt groove, and the bottom wall of the annular butt groove is connected to the inner wall of the flange body via a first inclined surface. This allows the bell-shaped stationary cavity, embedded in the annular butt groove, to mate with the first inclined surface to form a first bevel. Workers can then perform fillet welds between the upper end face of the flange body and the outer wall of the bell-shaped stationary cavity. Simultaneously, the first bevel can be welded to form another weld. Therefore, this utility model achieves the connection between the flange and the bell-shaped stationary cavity through a composite welding structure combining two welds. Compared to traditional welding methods, this solution increases the effective length of the weld at the connection between the flange and the bell-shaped stationary cavity, thereby effectively reducing the stress level per unit length of the weld, enhancing the connection stability between the flange and the bell-shaped stationary cavity, and improving the overall rigidity of the final product.

[0052] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this utility model.

[0053] Those skilled in the art will understand that the modules in the apparatus of the implementation scenario can be distributed within the apparatus of the implementation scenario as described, or they can be located in one or more apparatuses different from this implementation scenario, with corresponding changes. The modules of the above-described implementation scenario can be combined into one module, or they can be further divided into multiple sub-modules.

[0054] The serial numbers of the above-mentioned utility models are for descriptive purposes only and do not represent the superiority or inferiority of the implementation scenarios.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flange for a bell jar rest chamber, characterized in that, include: The annular flange body and the external connection part for connecting to the external base; The external connection part is located on the outer side wall of the flange body; The upper end of the inner wall of the flange body is provided with an annular docking groove for docking with the bell jar stationary cavity. The bottom wall of the annular docking groove is connected to the inner wall of the flange body through a first inclined surface. The first inclined surface is used to cooperate with the bottom end face of the bell jar stationary cavity to form a first bevel for welding when the bell jar stationary cavity is embedded in the annular docking groove.

2. A flange for a bell jar rest chamber according to claim 1, wherein, The sidewall of the annular butt groove is connected to the upper end face of the flange body through a second inclined surface. The second inclined surface is used to cooperate with the outer wall of the bell jar stationary cavity to form a second bevel for welding when the bell jar stationary cavity is embedded in the annular butt groove.

3. A flange for a bell jar rest chamber according to claim 2, wherein, There is a gap between the side wall of the annular docking groove and the outer wall of the bell jar stationary cavity, and the upper end of the gap is connected to the second bevel.

4. A flange for a bell jar rest chamber according to claim 1, wherein, The first bevel includes a V-shaped bevel.

5. A flange for a bell jar rest chamber according to claim 1, wherein, The bottom wall of the annular docking groove and the bottom end face of the bell jar stationary cavity are provided with a plugging protrusion on one side and a plugging groove for plugging into the plugging protrusion on the other side.

6. A flange for a bell jar stationary cavity according to claim 1, characterized in that, The flange body has multiple radially penetrating through holes spaced apart along the circumferential direction on its side wall, and fixing bolts for fixing and connecting the bell jar stationary cavity are inserted through the through holes.

7. A flange for a bell jar rest chamber according to claim 1, wherein, The vertical depth of the annular docking groove is between 18 mm and 22 mm; and / or, the width of the annular docking groove is between 14 mm and 18 mm.

8. A flange for a bell jar rest chamber according to claim 1, wherein, The external connection part includes a plurality of snap-fit ​​protrusions spaced at intervals along the outer side wall of the flange body in a circumferential direction.

9. A flange for a bell jar rest chamber according to claim 8, wherein, The snap-fit ​​protrusion is integrally formed with the flange body.

10. A bell jar rest chamber characterized by, Includes the flange for the stationary cavity of the bell jar as described in any one of claims 1-9.

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