Forge piece structure of partition piece

Abstract

The forge piece structure of the partition piece comprises a body and a cylindrical arching part, the axis of the cylindrical arching part is parallel to the plane where the body is located, the cylindrical arching part protrudes out of the body in the thickness direction, and the part, protruding out of the body, of the cylindrical arching part is a smooth cambered surface. And the fillet radius of the cylindrical arching part and the edge of the side surface is less than or equal to 5mm. The forge piece structure of the partition piece has the advantages of being free of protruding blocks on the surface, higher in safety performance, good in filling effect, small in deformation amount, high in material utilization rate and beneficial to cutting machining for positioning.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging, and in particular relates to a forging structure of a partition piece. Background Art

[0002] In order to improve the safety performance of electric vehicles, many partitions are usually provided in the battery pack of electric vehicles to isolate the batteries. At the same time, partitions are provided to increase the strength, stiffness and other physical properties of the entire battery pack and improve the deformation resistance of the battery pack.

[0003] like Figure 4 As shown, since the partition needs to be connected to the battery pack on the one hand, the thickness of the part of the partition where the threaded hole needs to be opened is relatively thick, and on the other hand, in order to increase the capacity of the battery pack, the partition needs to avoid occupying too much space, and the remaining part of the partition is relatively thin, which makes it difficult to forge and fill the thick part. The traditional method is to set an exhaust hole at the deepest part of the mold cavity. In this way, after forging, a bump 14 will be formed at the exhaust hole on the forging. On the one hand, due to the presence of the bump 14, it will be difficult to demold the forging. On the other hand, the bump 14 on the forging can easily puncture and scratch the battery, posing a safety hazard to the battery. At present, removing the bump 14 will add extra processes, reduce production efficiency, and increase production costs. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model proposes a forging structure of a partition piece, which has the advantages of no bumps on the surface, higher safety performance, good filling effect, small deformation, high material utilization rate, and is conducive to positioning during cutting processing.

[0006] According to the forging structure of the partition piece of the embodiment of the utility model, it includes: a main body, a cylindrical arch portion, the axis of the cylindrical arch portion is parallel to the plane where the main body is located, the cylindrical arch portion protrudes from the main body along the thickness direction, the part of the cylindrical arch portion protruding from the main body is a smooth arc surface, and the fillet radius of the cylindrical arch portion and the side edge is ≤5mm.

[0007] According to an embodiment of the utility model, four positioning points are provided on the upper and lower surfaces of the body, and any three positioning points on the same surface form a plane, and the height difference of the remaining positioning point compared to the plane is ≤1mm.

[0008] According to an embodiment of the utility model, the machining allowance reserved for the side edge of the body is 1.8-2 mm.

[0009] According to an embodiment of the utility model, a groove portion is provided on the main body, the groove portion is located on the axis of the cylindrical arch portion, and both sides of the groove portion are raised toward the upper and lower surfaces.

[0010] According to an embodiment of the utility model, a trimming step surface is formed on the outer contour of the main body, and the width of the trimming step surface is 1.8-3 mm.

[0011] According to one embodiment of the utility model, the demoulding slope of the outer contour surface of the main body is 3-8°.

[0012] According to one embodiment of the utility model, the demoulding slope of the outer contour surface of the main body is 5°.

[0013] According to an embodiment of the utility model, the number of the cylindrical arched parts is two, and the main body is provided with an X-shaped reinforcing rib, and the X-shaped reinforcing rib is located between the two cylindrical arched parts.

[0014] According to an embodiment of the utility model, the forging structure is integrally forged from aluminum alloy bars.

[0015] According to an embodiment of the utility model, the upper and lower surfaces of the forging structure are smooth and free of burrs.

[0016] The beneficial effect of the utility model is that the forging structure of the utility model is easy to form, and the surface of the part of the cylindrical arch protruding from the main body is smooth, without bumps, burrs, etc., which makes the partition piece have higher safety performance when used in the battery pack, and on the other hand, it is easier to peel off from the cavity after forging to avoid sticking to the mold, thereby ensuring the processing effect, controlling the deformation of the partition piece within a reasonable range, and the deformation is small, which is conducive to positioning by cutting processing, and the fillet radius of the cylindrical arch portion and the side edge is ≤5mm, the edge is fully formed, and the forming performance of the forging is significantly improved, so that the cylindrical arch portion has sufficient material for hole opening processing, with better filling effect and higher material utilization.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments of the present invention, in which:

[0020] Figure 1 It is a schematic diagram of the forging structure according to the utility model;

[0021] Figure 2 It is a structural schematic diagram of a partition according to the utility model;

[0022] Figure 3 It is a right view structural schematic diagram according to the utility model;

[0023] Figure 4 It is a schematic diagram of the current bumps on the forging surface;

[0024] Reference numerals:

[0025] The main body 1 , the cylindrical arched portion 2 , the positioning point 3 , the groove portion 4 , the trimming step surface 5 , the processed surface 11 , the mounting hole 12 , the mounting groove 13 , and the protrusion 14 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The forging structure of the partition piece of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-Figure 4 As shown, the forging structure of the partition piece according to the embodiment of the utility model includes: a main body 1 and a cylindrical arch portion 2, the axis of the cylindrical arch portion 2 is parallel to the plane where the main body 1 is located, the cylindrical arch portion 2 protrudes from the main body 1 along the thickness direction, the part of the cylindrical arch portion 2 protruding from the main body 1 is a smooth arc surface, and the fillet radius of the cylindrical arch portion 2 and the side edge is ≤5mm.

[0031] Furthermore, the forging structure is integrally forged from an aluminum alloy bar, wherein the upper and lower surfaces of the forging structure are smooth and free of burrs.

[0032] In other words, the main body 1 is generally a rectangular plate-like structure. Since the partition piece needs to be connected to the frame when in use, the partition piece needs to have a mounting hole 12 and a mounting groove 13. At the same time, in order to ensure the installation accuracy, the side of the partition piece needs to be processed to form a processed surface 11. This makes the thickness of the forging structure at the location where the mounting hole 12 is opened higher, and the cylindrical arch 2 protrudes from the main body 1 along the thickness direction. At this time, the cylindrical arch 2 is difficult to be completely filled. The existing scheme usually forms a protrusion 14 on the surface of the cylindrical arch 2 after filling by opening an exhaust hole in the mold. In the forging structure of the present application, the fillet radius of the cylindrical arch 2 and the side edge is ≤5mm, so that the edge of the cylindrical arch 2 can be completely filled, and the smooth surface is convenient for demolding, avoiding edge collapse, and there are no protrusions 14 or burrs that affect the use of the partition piece.

[0033] In this embodiment, four positioning points 3 are provided on the upper and lower surfaces of the main body 1. Any three positioning points 3 on the same surface form a plane, and the height difference of the remaining positioning point 3 compared to the plane is ≤1mm.

[0034] In other words, the forging structure of the present application has four positioning points 3, and a plane is determined by three points. The height difference of another point compared to the plane is ≤1mm. Therefore, the forging structure of the present application is relatively flat, with small deformation, which meets the subsequent machining requirements and installation requirements in the battery pack.

[0035] According to an embodiment of the utility model, the machining allowance reserved for the side edge of the body 1 is 1.8-2mm. The machining allowance reserved for the side of the body 1 is relatively moderate, which improves the material utilization rate in the forging process on the one hand, and leaves machining allowance for machining on the other hand, ensuring that the machining can machine the machining surface 11.

[0036] In this embodiment, a groove portion 4 is provided on the main body 1 . The groove portion 4 is located on the axis of the cylindrical arch portion 2 , and both sides of the groove portion 4 are convex toward the upper and lower surfaces.

[0037] The groove part 4 needs to be removed during subsequent machining, and the arrangement of the groove part 4 on the forging structure allows metal to be filled into both sides of the groove, thereby ensuring a filling effect on both sides of the groove part 4 .

[0038] According to an embodiment of the present invention, a trimming step surface 11 is formed on the outer contour of the body 1, and the width of the trimming step surface 11 is 1.8-3 mm.

[0039] That is, the thickness of the flash affects the filling performance, and setting the width of the trimming step surface 11 to 1.8-3 mm can ensure that the material is filled into the cavity corresponding to the cylindrical arched portion 2 .

[0040] The demoulding slope of the outer contour surface of the main body 1 is 3-8°. Furthermore, the demoulding slope of the outer contour surface of the main body 1 is 5°.

[0041] The larger the demoulding angle, the easier it is to demould, and the smaller the demoulding angle, the higher the material utilization rate. The demoulding angle of 3-8° matches the processing allowance of 1.8-2mm, which improves the material utilization rate while utilizing demoulding.

[0042] According to an embodiment of the present invention, there are two cylindrical arched portions 2, and the body 1 is provided with X-shaped reinforcing ribs, which are located between the two cylindrical arched portions 2. The X-shaped reinforcing ribs can effectively increase the strength of the thinner portion of the body 1 and improve the deformation resistance.

[0043] In summary, the forging structure of the utility model is easy to form, and the surface of the part of the cylindrical arch 2 protruding from the main body 1 is smooth, without bumps, burrs, etc. On the one hand, the partition has higher safety performance when used in the battery pack, and on the other hand, it is easier to peel off from the cavity after forging to avoid sticking to the mold, thereby ensuring the processing effect and controlling the deformation of the partition within a reasonable range. The deformation is small, which is conducive to positioning by cutting processing, and the fillet radius of the cylindrical arch 2 and the side edge is ≤5mm, and the edge is fully formed, so that the cylindrical arch 2 has sufficient material for hole opening processing, which has better filling effect and higher material utilization.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A forging structure of a partition, characterized in that: include: Ontology(1), A cylindrical arched portion (2), wherein the axis of the cylindrical arched portion (2) is parallel to the plane where the main body (1) is located, the cylindrical arched portion (2) protrudes from the main body (1) along the thickness direction, the portion of the cylindrical arched portion (2) protruding from the main body (1) is a smooth arc surface, and the fillet radius of the cylindrical arched portion (2) and the side edge is ≤5mm.

2. The forging structure of the partition piece according to claim 1, characterized in that: The upper and lower surfaces of the body (1) are each provided with four positioning points (3), any three positioning points (3) of the four positioning points (3) on the same surface form a plane, and the height difference of the remaining positioning point (3) with respect to the plane is ≤1 mm.

3. The forging structure of the partition piece according to claim 1, characterized in that: The machining allowance reserved for the side edge of the body (1) is 1.8-2 mm.

4. The forging structure of the partition piece according to claim 1, characterized in that: The main body (1) is provided with a groove portion (4), the groove portion (4) is located on the axis of the columnar arch portion (2), and both sides of the groove portion (4) are protruding toward the upper and lower surfaces.

5. The forging structure of the partition piece according to claim 1, characterized in that: A trimming step surface (11) is formed on the outer contour of the body (1), and the width of the trimming step surface (11) is 1.8-3 mm.

6. The forging structure of the partition piece according to claim 1, characterized in that: The demoulding slope of the outer contour surface of the main body (1) is 3-8°.

7. The forging structure of the partition piece according to claim 6, characterized in that: The demoulding slope of the outer contour surface of the main body (1) is 5°.

8. The forging structure of the partition piece according to claim 1, characterized in that: The number of the columnar arched portions (2) is two, and the body (1) is provided with an X-shaped reinforcing rib, wherein the X-shaped reinforcing rib is located between the two columnar arched portions (2).

9. The forging structure of the partition piece according to claim 1, characterized in that: The forging structure is forged in one piece from an aluminum alloy bar.

10. The forging structure of the partition piece according to claim 9, characterized in that: The upper and lower surfaces of the forging structure are smooth and free of burrs.

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