Pole mold structure

Abstract

The utility model belongs to the technical field of pole molds, and discloses a pole mold structure. The pole mold structure comprises a punch and an anti-sticking layer, wherein the punch is used for extruding a pole. The anti-sticking layer is arranged on the extrusion end face, close to the pole, of the punch, and the anti-sticking layer completely covers the extrusion end face of the punch. The thickness of the anti-sticking layer is h, and 0.1 mm is smaller than or equal to hlt; and the thickness is 0.6 mm. The pole mold structure is high in use efficiency; and the yield of the pole column produced by the pole column mold structure is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pole molds, in particular to a pole mold structure. Background Art

[0002] A pole is a component that connects directly to a busbar at one end and to an external conductor (also called a terminal in this context) at the other end, or to one pole of an adjacent single cell in a battery pack. The pole is an essential component of batteries and is typically made of aluminum and cast using a mold. However, in existing technology, the production and assembly of poles often generates high heat due to the continuous contact between the mold and the aluminum product, which can easily attract foreign matter such as aluminum powder, affecting mold efficiency and the yield rate of the pole product.

[0003] Therefore, it is urgent to propose a pole mold structure to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a pole mold structure, which has high use efficiency and high yield rate of produced poles.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Pole mold structure, including:

[0007] A punch, used for squeezing a pole;

[0008] The anti-sticking layer is provided on the extrusion end surface of the punch close to the pole, and the anti-sticking layer completely covers the extrusion end surface of the punch. The thickness of the anti-sticking layer is h, 0.1mm≤h<0.6mm.

[0009] As an optional technical solution for the pole mold structure, the anti-sticking layer is an oxidation coating, and the oxidation coating is applied to the extrusion end face of the punch.

[0010] As an optional technical solution for the pole mold structure, the pole mold structure further includes a positioning base, which is passed through the inside of the battery shell and abuts against the inner wall of the battery shell, and the punch passes through the positioning base and abuts against the pole.

[0011] As an optional technical solution for the pole mold structure, the pole mold structure further includes a first positioning member, which is covered on the top of the battery shell, and the first positioning member and the positioning base jointly limit the displacement of the battery shell.

[0012] As an optional technical solution for the pole mold structure, the first positioning member is coaxially arranged with the positioning base.

[0013] As an optional technical solution of the pole mold structure, the pole mold structure further includes a second positioning piece, which passes through the first positioning piece and abuts against the top surface of the pole.

[0014] As an optional technical solution for the pole mold structure, the first positioning member is connected to the second positioning member by riveting.

[0015] As an optional technical solution to the pole mold structure, the second positioning member is coaxially arranged with the battery housing.

[0016] As an optional technical solution for the pole mold structure, the top surfaces of the first positioning member and the second positioning member are flush.

[0017] As an optional technical solution of the pole mold structure, the pole mold structure further includes a mold pressing plate, and the mold pressing plate is pressed on the first positioning member and the second positioning member.

[0018] Beneficial effects of the utility model:

[0019] The pole mold structure provided by the utility model includes a punch and an anti-sticking layer. The punch is used to extrude the pole to form the pole. The anti-sticking layer is provided on the extrusion end face of the punch close to the pole, and the anti-sticking layer completely covers the extrusion end face of the punch, so as to avoid the high temperature generated by direct contact between the punch and the pole, resulting in adhesion of foreign matter, thereby avoiding affecting the use efficiency of the pole mold structure and the yield rate of the pole. The thickness of the anti-sticking layer is h, 0.1mm≤h<0.6mm, and the thickness of the anti-sticking layer is moderate, which can prevent the anti-sticking layer from being too thin and easy to fall off, thereby increasing the use efficiency of the pole mold structure; it can also prevent the anti-sticking layer from being too thick and affecting the product precision of the pole, thereby improving the yield rate of the pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a partial assembly state of a pole mold structure provided by an embodiment of the present utility model during use;

[0021] Figure 2 yes Figure 1 Enlarged view at point A.

[0022] In the picture:

[0023] 10. Terminal; 20. Battery housing; 30. Lower plastic; 40. Sealing ring;

[0024] 100, punch; 200, anti-sticking layer; 300, positioning base; 400, first positioning member; 500, second positioning member; 600, mold pressing plate. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] The pole mold structure provided in this embodiment has high utilization efficiency; and the poles 10 produced by the pole mold structure have a high yield rate.

[0030] Specific as Figure 1 and Figure 2 As shown, the pole mold structure includes a punch 100 and an anti-sticking layer 200. The punch 100 is used to extrude the pole 10. The anti-sticking layer 200 is provided on the extrusion end surface of the punch 100 close to the pole 10, and the anti-sticking layer 200 completely covers the extrusion end surface of the punch 100. The thickness of the anti-sticking layer 200 is h, 0.1mm≤h<0.6mm.

[0031] Based on the above design, the punch 100 is used to extrude the pole 10 to form the pole 10. The anti-sticking layer 200 is provided on the extrusion end face of the punch 100 close to the pole 10 and completely covers the extrusion end face of the punch 100, preventing the punch 100 from directly contacting the pole 10 and generating high temperatures that may cause adhesion of foreign matter, thereby avoiding affecting the efficiency of the pole mold structure and the yield rate of the pole 10. The thickness of the anti-sticking layer 200 is h, 0.1mm≤h<0.6mm. The moderate thickness of the anti-sticking layer 200 can prevent the anti-sticking layer 200 from being too thin and easily falling off, thereby increasing the efficiency of the pole mold structure; it can also prevent the anti-sticking layer 200 from being too thick and affecting the product precision of the pole 10, thereby improving the yield rate of the pole 10.

[0032] For example, the thickness h of the anti-sticking layer 200 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc. The present invention does not impose any specific limitation on this, and it can be set as needed.

[0033] In this embodiment, the anti-sticking layer 200 is an oxidation coating, which is applied to the extrusion end surface of the punch 100. The oxidation coating has good coverage and good isolation and anti-sticking effects.

[0034] The oxidation coating treatment can adopt chemical chromium plating, electrochemical polishing, nitriding, carbonization and other methods, which can effectively improve the hardness and wear resistance of the punch 100, and increase the adaptability of the punch 100 to high temperature, high pressure and other environments, thereby improving production efficiency and product quality.

[0035] Furthermore, the pole mold structure also includes a positioning base 300, which is penetrated from the inside of the battery shell 20 and abuts against the inner wall of the battery shell 20. The punch 100 penetrates the positioning base 300 and abuts against the pole 10, positioning and fixing the battery shell 20 to prevent the battery shell 20 from moving and affecting the forming of the pole 10.

[0036] In order to increase the fixation of the battery shell 20, the pole mold structure also includes a first positioning member 400, which is covered on the top of the battery shell 20. The first positioning member 400 and the positioning base 300 jointly limit the displacement of the battery shell 20, that is, the battery shell 20 is fixed by clamping the battery shell 20 inside and outside by the positioning base 300 and the first positioning member 400.

[0037] Furthermore, the first positioning member 400 is coaxially arranged with the positioning base 300 to increase the force uniformity of the battery housing 20 .

[0038] The pole mold structure further includes a second positioning member 500 . The second positioning member 500 passes through the first positioning member 400 and abuts against the top surface of the pole 10 to position, press, and fix the pole 10 .

[0039] The first positioning member 400 and the second positioning member 500 are riveted together, which has a simple connection and high connection strength.

[0040] Optionally, to save space, the top surfaces of the first positioning member 400 and the second positioning member 500 are flush.

[0041] Optionally, the second positioning member 500 is coaxially arranged with the battery housing 20 to increase the force uniformity on the electrode 10 and the battery housing 20.

[0042] In this embodiment, the battery housing 20 , the terminal post 10 , the positioning base 300 , the first positioning member 400 and the second positioning member 500 are all coaxially arranged.

[0043] Continue as Figure 1 As shown, the pole mold structure further includes a mold pressing plate, which is pressed on the first positioning member 400 and the second positioning member 500 .

[0044] The following is the specific assembly process of the pole 10:

[0045] The positioning base 300 is passed through the interior of the battery housing 20 and abuts against the inner wall of the battery housing 20 , that is, the battery housing 20 is sleeved on the positioning base 300 .

[0046] The front mold (not shown) and the rear mold (not shown) of the pole mold structure begin to close. While closing the mold, the rear mold squeezes the punch 100 with the anti-sticking layer 200 to press the pole 10 to achieve the designed angle.

[0047] The mold closing process is divided into three steps. The first and second steps are designed to bend the pole 10 at different angles. The third step (such as Figure 1 The assembly state in FIG) is directly extruded according to the structural contour design of the pole 10 product molding.

[0048] During the mold closing process, the second positioning member 500 of the front mold fixes and extrudes the terminal post 10 to ensure the coaxiality between the terminal post 10 and the battery housing 20 .

[0049] Continue as Figure 2 As shown, the battery in this embodiment includes a battery housing 20, a terminal 10, a sealing ring 40, and a lower plastic 30. The lower plastic 30 is attached to the inner wall of the upper cover of the battery housing 20. The terminal 10 is sequentially connected through the upper cover of the battery housing 20 and the lower plastic 30. The lower plastic 30 isolates and insulates the upper cover of the battery housing 20 and the terminal 10. The sealing ring 40 is sleeved on the terminal 10, isolating and sealing the battery housing 20 and the terminal 10. It should be noted that in this embodiment, when the terminal 10 is assembled, the positioning base 300 abuts against the lower plastic 30 and the bottom of the terminal 10 inside the battery housing 20.

[0050] Of course, in other embodiments, the battery may have other structural forms, and the electrode 10 may have other structural forms.

[0051] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The pole mold structure is characterized by: include: A punch (100), the punch (100) being used to extrude the pole (10); An anti-sticking layer (200) is provided on an extrusion end face of the punch (100) close to the pole (10), and the anti-sticking layer (200) completely covers the extrusion end face of the punch (100), and the thickness of the anti-sticking layer (200) is h, 0.1 mm ≤ h < 0.6 mm.

2. The pole mold structure according to claim 1, characterized in that: The anti-sticking layer (200) is an oxidation coating, and the oxidation coating is applied to the extrusion end surface of the punch (100).

3. The pole mold structure according to claim 1, characterized in that: The pole mold structure further includes a positioning base (300), the positioning base (300) is passed through the interior of the battery housing (20) and abuts against the inner wall of the battery housing (20), and the punch (100) passes through the positioning base (300) and abuts against the pole (10).

4. The pole mold structure according to claim 3, characterized in that: The pole mold structure further includes a first positioning member (400), the first positioning member (400) being arranged on the top of the battery housing (20), and the first positioning member (400) and the positioning base (300) jointly limiting the displacement of the battery housing (20).

5. The pole mold structure according to claim 4, characterized in that: The first positioning member (400) is coaxially arranged with the positioning base (300).

6. The pole mold structure according to claim 4, characterized in that: The pole mold structure further includes a second positioning member (500), wherein the second positioning member (500) passes through the first positioning member (400) and abuts against the top surface of the pole (10).

7. The pole mold structure according to claim 6, characterized in that: The first positioning member (400) and the second positioning member (500) are riveted together.

8. The pole mold structure according to claim 7, characterized in that: The second positioning member (500) is coaxially arranged with the battery housing (20).

9. The pole mold structure according to claim 6, characterized in that: The top surfaces of the first positioning member (400) and the second positioning member (500) are flush.

10. The pole mold structure according to claim 6, characterized in that: The pole mold structure further comprises a mold pressing plate (600), and the mold pressing plate (600) is pressed on the first positioning member (400) and the second positioning member (500).

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