Mold stripping structure of heat dissipation tooth sheet and heat dissipation tooth sheet
By using flat ejector pins and flat steps in the demolding structure of the heat dissipation fins, the problems of sticking to the mold and structural weakening during the die casting process of the heat dissipation fins are solved, achieving smooth demolding and improving heat dissipation efficiency.
Patent Information
- Application Number
- CN202422976582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Heat dissipation fins are prone to sticking to the mold during the die casting process, making demolding difficult, and the thin-walled, tall structure is easily deformed or damaged.
The mold structure includes a front mold, a rear mold, flat ejector pins, and a heat sink body. The flat structure of the ejector pins fits tightly with the heat sink fins, enhancing the strength of the ribs, and the flat step design enables smooth demolding.
It solved the problem of difficult demolding, improved heat dissipation efficiency and structural strength, and avoided deformation and damage of heat dissipation fins.
Smart Images

Figure CN223748515U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a radiator mold technology especially relates to a heat dissipation tooth piece's mould structure and heat dissipation tooth piece. BACKGROUND
[0002] The design of heat dissipation tooth aims at improving heat dissipation efficiency by increasing heat dissipation area. In order to achieve this goal, heat dissipation tooth is usually designed as thin-walled structure to maximize the heat dissipation area. At the same time, in order to meet the heat dissipation demand, the height of heat dissipation tooth is also relatively high, and this thin-walled and high structure is easy to cause deformation, damage and other problems of heat dissipation tooth.
[0003] However, this thin-walled and high structure characteristics in the process of die casting is easy to cause the phenomenon of sticking to the mold, and then cause the problem of difficult demolding. CONTENT
[0004] In view of the above-mentioned defects, the purpose of the utility model is to provide a heat dissipation tooth piece's mould structure, which solves the problem of sticking to the mold in the demolding process of heat dissipation tooth piece, and then causes the problem of difficult demolding.
[0005] Another purpose of the utility model is to provide a heat dissipation tooth piece, which solves the problem of deformation, damage and other problems of thin-walled and high heat dissipation tooth piece.
[0006] In order to achieve this purpose, the utility model adopts the following technical scheme: a heat dissipation tooth piece's mould structure, the mould structure includes: front mold, back mold, a plurality of flat thimbles and radiator body;
[0007] The radiator body is installed on the back mold, the back mold is provided with a chamber inside, the radiator body is installed in the chamber, and the front mold is installed on the top of the back mold;
[0008] A plurality of through holes are arranged on the front mold;
[0009] Each flat thimble is inserted into a corresponding through hole and extends to the radiator body;
[0010] One end of the flat thimble close to the radiator body is provided with a flat structure;
[0011] The back mold is used for machining the heat dissipation tooth piece on the radiator body;
[0012] The flat structure is used to enhance the rib position strength of the heat dissipation tooth piece, so that the heat dissipation tooth piece is smoothly ejected from the front mold.
[0013] Further, one end of the flat structure is installed on the radiator body, and the other end of the flat structure is higher than the edge of the through hole.
[0014] Further, one end of the flat structure away from the radiator body is provided with a support seat, and a horizontal section of the support seat is larger than a horizontal section of the flat structure.
[0015] Further, the rear mold comprises a containing groove, and the containing groove is arranged at a top of the rear mold.
[0016] Further, the front mold is further provided with an identification hole, and the identification hole is arranged at the top of the front mold.
[0017] Further, the radiator body is provided with a limiting protrusion, and the limiting protrusion is arranged at one end of the radiator body.
[0018] Further, the rear mold further comprises a plurality of connecting supports, and the front mold is provided with a plurality of connecting channels, each of the connecting channels is arranged opposite to the corresponding one of the connecting supports in an up-down direction, and the connecting channel is fixedly connected with the connecting support through a locking piece.
[0019] Further, the through hole is circular, the flat ejector pin is a cylinder, an outer diameter of a section of the flat ejector pin is equal to an inner diameter of the through hole, and the flat structure is formed by grinding the cylinder.
[0020] Further, the heat dissipation fin is produced by using the ejection structure of the heat dissipation fin, and the heat dissipation fin is provided with a flat platform step.
[0021] Further, the heat dissipation fin has a height of 44 mm to 50 mm, and a thickness of the heat dissipation fin is only 1.0 mm to 1.5 mm.
[0022] The technical scheme provided by the utility model can have the following beneficial effects: the flat ejector pin successfully ejects the heat dissipation fin from the front mold, and completes the demolding process; the flat structure of the flat ejector pin is closely combined with the rib position of the heat dissipation fin, so that the flat position step of the heat dissipation fin is generated during processing, the contact area and stability during ejection are increased, the strength of the rib position is enhanced, the problem of mold sticking during the demolding process of the heat dissipation fin is solved, and the problem of demolding difficulty is further caused; the heat dissipation fin is provided with the flat platform step, the flat platform step not only enhances the surface area of the heat dissipation fin, improves the heat dissipation efficiency, but also enhances the structural strength of the heat dissipation fin, and solves the problems of deformation and damage of the heat dissipation fin caused by the thin-walled and high structure. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0024] Fig. 1 is a structural schematic view of the mold structure in the present application;
[0025] Fig. 2 is a structural schematic view of the radiator body in the present application;
[0026] Fig. 3 is a structural schematic view of the rear mold in the present application.
[0027] Wherein: the front mold 1, the through hole 11, the connecting channel 12, the identification hole 13, the rear mold 2, the accommodating groove 21, the connecting support 22, the flat top needle 3, the flat structure 31, the supporting seat 311, the radiator body 4, the radiating fin 41, the flat platform step 411 and the limiting protruding part 42. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0029] In the description of the present application, it is understood that the terms "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application. In addition, the features limited as "first", "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and there is no order or difference.
[0030] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, the above-mentioned term can be understood in the utility model with concrete meaning according to specific circumstances.
[0031] The following will be described in detail with reference to the accompanying drawings Figs. 1-3 And through the specific implementation to further illustrate the technical scheme of the utility model.
[0032] One preferred embodiment in the application, a heat dissipation fin's structure of drawing out of mould, the structure of drawing out of mould includes: front mould 1, back mould 2, several flat thimble 3 and radiator body 4;The radiator body 4 is installed to the back mould 2, the back mould 2 is equipped with chamber inside, the radiator body 4 is installed to the chamber, the front mould 1 is installed to the top of the back mould 2;Front mould 1 body is equipped with several through holes 11;Each flat thimble 3 inserts corresponding one through hole 11 and extends to the radiator body 4;The one end of flat thimble 3 close to the radiator body 4 is equipped with flat structure 31;The back mould 2 is used to process the heat dissipation fin 41 on the radiator body 4;Flat structure 31 is used to enhance the rib position intensity of heat dissipation fin 41, and facilitates the heat dissipation fin 41 from the front mould 1 ejection demoulding.
[0033] Specifically, when the radiator body 4 and the heat dissipation fin 41 are completely solidified, the locking state of the front mould 1 and the back mould 2 during production is released, pressure is applied to the flat thimble 3, the flat thimble 3 smoothly ejects the heat dissipation fin 41 from the front mould cavity, and the demoulding process is completed. Since the flat structure 31 of the flat thimble 3 closely fits the rib position of the heat dissipation fin 41, a flat position step is formed in the heat dissipation fin 41 during processing, increasing the contact area and stability during ejection, thereby enhancing the strength of the rib position. The present technical solution solves the problems of mold sticking, deformation, and damage of the heat dissipation fin during the demolding process of the heat dissipation fin.
[0034] In an optional embodiment, one end of the flat structure 31 is installed on the radiator body 4, and the other end of the flat structure 31 is higher than the edge of the through hole 11.
[0035] Specifically, the flat structure 31 forms a unique inlay position gap at the through hole 11, which provides an effective gas removal channel when casting the heat dissipation fin, timely discharging the gas, thereby avoiding the formation of bubbles or voids in the heat dissipation fin 41, causing poor molding.
[0036] In an optional embodiment, an end of the flat structure 31 away from the radiator body 4 is provided with a support seat 311, and a horizontal section of the support seat 311 is greater than a horizontal section of the flat structure 31.
[0037] Specifically, since the horizontal section of the support seat 311 is greater than the flat structure 31, the support seat 311 can better disperse and transfer the ejection force, that is, the flat ejector pin 3 can effectively transfer the ejection force to the radiator fin 41, thereby more effectively ejecting the radiator fin 41 from the back mold 2.
[0038] In an optional embodiment, the back mold 2 comprises a containing groove 21, and the containing groove 21 is arranged at a top of the back mold 2, and the radiator body 4 is installed in the containing groove 21.
[0039] Specifically, the containing groove 21 provides an accurate positioning and fixing space for the radiator body 4, ensuring that the position of the radiator body 4 in the back mold 2 is accurate and correct, and avoiding poor forming or difficult ejection of the radiator fin due to position deviation.
[0040] In an optional embodiment, the front mold 1 is further provided with an identification hole 13, and the identification hole 13 is arranged at a top of the front mold 1, and a wide surface of each flat structure 31 is arranged towards the identification hole 13.
[0041] Specifically, the arrangement of the identification hole 13 provides an indication direction, and when assembling the flat ejector pin 3, it is ensured that the wide surface of each flat structure 31 is towards the set direction, ensuring that the wide surface of the flat structure 31 is parallel to the radiator fin 41 and ensuring that a flat position step of the same specification can be formed on the radiator fin 41, improving the overall quality and performance of the radiator fin 41.
[0042] In an optional embodiment, the radiator body 4 is provided with a limiting protrusion 42, and the limiting protrusion 42 is arranged at one end of the radiator body 4.
[0043] Specifically, the limiting protrusion 42 enables the radiator body 4 to be accurately positioned when installed in the back mold 2, and through the cooperation of the limiting protrusion 42 and the back mold 2, the radiator body 4 is not easy to deviate or rotate during installation, thereby ensuring the forming precision and consistency of the radiator fin 41.
[0044] In an optional embodiment, the back mold 2 further comprises a plurality of connecting supports 22, and the front mold 1 is provided with a plurality of connecting channels 12, each of which is arranged vertically opposite to the corresponding connecting support 22, and the connecting channel 12 is fixedly connected with the connecting support 22 through a locking member.
[0045] Specifically, the cooperation between the connecting support 22 and the connecting channel 12 is fixed through the locking member, so that the front mold 1 and the back mold 2 can form a stable and solid whole when the mold is closed. This stability helps to reduce the deformation and displacement of the mold during the die casting process, ensuring the forming precision and consistency of the heat dissipation fin 41. Moreover, the design of the connecting support 22 and the connecting channel 12 simplifies the assembly process of the mold, and the front mold 1 and the back mold 2 can be quickly connected through simple alignment and locking operation, without the need for complex adjustment and calibration, which helps to improve production efficiency and reduce production cost.
[0046] In an optional embodiment, the shape of the through hole 11 is circular, the flat-top pin 3 is a cylinder, the outer diameter of the cross section of the flat-top pin 3 is equal to the inner diameter of the through hole 11, and the flat structure 31 is formed by grinding the cylinder.
[0047] Specifically, since the outer diameter of the cross section of the flat-top pin 3 is equal to the inner diameter of the through hole 11, the smooth movement of the flat-top pin 3 in the through hole 11 is ensured. During the demolding process, the flat-top pin 3 can easily pass through the through hole 11 and push the heat dissipation fin 41 out of the back mold, thereby separating without encountering obstacles or jamming. The flat structure 31 is formed by grinding the cylinder. This process can ensure the accuracy and surface quality of the flat structure 31. Grinding makes the size and shape of the flat structure 31 more consistent, which helps to improve the forming precision and aesthetics of the heat dissipation fin 41.
[0048] A heat dissipation fin produced by using the ejection structure of the heat dissipation fin, the heat dissipation fin 41 is provided with a flat platform step 411.
[0049] Specifically, the heat dissipation fin 41 is provided with the flat platform step 411, which increases the surface area of the heat dissipation fin 41 and improves the heat dissipation efficiency. Moreover, the flat platform step also enhances the structural strength of the heat dissipation fin 41, making it more stable and less prone to deformation or damage.
[0050] In an optional embodiment, the height of the heat dissipation fin 41 is between 44mm and 50mm, and the thickness of the heat dissipation fin is only between 1.0mm and 1.5mm.
[0051] Specifically, the height and thickness of the heat dissipation fins 41 ensure sufficient heat dissipation area and avoid excessive volume and weight, and such design enables the heat dissipation fins 41 to effectively transfer heat from the heat source to the surrounding environment, thereby improving heat dissipation efficiency.
[0052] The above has introduced the embodiments of the present application in detail, and the principle and implementation mode of the present application have been described by using specific examples in this paper, and the above embodiment description is only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the present application.
Claims
1. A structure for releasing a heat radiating fin, characterized by comprising: The heat dissipation fin is produced by the mold structure, and the mold structure comprises a front mold, a rear mold, a plurality of flat ejector pins and a radiator body. The radiator body is installed on the rear mold, the rear mold is internally provided with a chamber, the radiator body is installed on the chamber, and the front mold is installed on the top of the rear mold. A plurality of through holes are arranged on the front mold. Each flat ejector pin is inserted into a corresponding through hole and extends to the radiator body. One end of the flat ejector pin close to the radiator body is provided with a flat structure. The rear mold is used for processing the heat dissipation fin on the radiator body. The flat structure is used for enhancing the rib strength of the heat dissipation fin and facilitating the ejection of the heat dissipation fin from the front mold.
2. The ejector structure of the heat dissipation fin according to claim 1, wherein, One end of the flat structure is installed on the radiator body, and the other end of the flat structure is higher than the edge of the through hole.
3. The ejector structure of the heat dissipation fin according to claim 1, wherein The other end of the flat structure away from the radiator body is provided with a support seat, and the horizontal section of the support seat is larger than the horizontal section of the flat structure.
4. The ejector structure of the heat dissipation fin according to claim 3, wherein The rear mold comprises a containing groove, the containing groove is arranged on the top of the rear mold, and the radiator body is installed on the containing groove.
5. The ejector structure of the heat dissipation fin according to claim 2, wherein The front mold is further provided with an identification hole, the identification hole is arranged on the top of the front mold, and the wide surface of each flat structure faces the identification hole.
6. The ejector structure of the heat dissipation fin according to claim 1, wherein The radiator body is provided with a limiting protrusion, and the limiting protrusion is arranged at one end of the radiator body.
7. The ejector structure of the heat dissipation fin according to claim 1, wherein The rear mold further comprises a plurality of connecting supports, and the front mold is provided with a plurality of connecting channels, each connecting channel is arranged opposite to the corresponding connecting support, and the connecting channel is fixedly connected with the connecting support by a locking piece.
8. The ejector structure of the heat dissipation fin according to claim 1, wherein, The shape of the through hole is circular, the flat ejector pin is a cylinder, the outer diameter of the cross section of the flat ejector pin is equal to the inner diameter of the through hole, and the flat structure is formed by grinding the cylinder.
9. A heat dissipating fin characterized by, The heat dissipation fin is produced by the mold structure of any one of claims 1 to 8, and the heat dissipation fin is provided with a flat platform.
10. The heat dissipating fin according to claim 9, wherein The height of the heat dissipation fin is between 44mm and 50mm, and the thickness of the heat dissipation fin is only between 1.0mm and 1.5mm.