Radiator

Abstract

The utility model aims to provide a radiator which comprises a bottom frame and a radiating piece, one side face of the bottom frame is provided with a concave cavity used for containing a heating piece, the side face, away from the concave cavity, of the bottom frame is further provided with a step groove, the inner bottom wall of the step groove is provided with a cavity hole communicated with the concave cavity, and the radiating piece comprises a heat conduction plate, a heat conduction protruding block and a plurality of radiating teeth. The heat dissipation teeth are arranged on the same side face of the heat conduction plate at intervals, the heat conduction protruding block is arranged on the side face, away from the heat dissipation teeth, of the heat conduction plate, the heat conduction plate is contained in the step groove in a matched mode, the heat conduction protruding block penetrates through the cavity hole, and the outer side wall of the heat conduction protruding block is connected with the inner side wall of the cavity hole in a sealed mode. Thus, the radiator is arranged to be of a structure in which the bottom frame and the heat dissipation piece are combined and welded, the manufacturing difficulty of the radiator can be greatly reduced, the qualification rate of the radiator is effectively improved, batch production is facilitated, and meanwhile it can be effectively guaranteed that the manufactured radiator has excellent heat conduction and heat dissipation performance.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to a radiator. Background Art

[0002] A heat sink is a device specifically designed to dissipate heat from heat-generating components such as electronic devices. It typically consists of a series of vertically or horizontally arranged fins that increase the contact area with the surrounding air, accelerating the transfer of heat from the heat source to the air. The fins are designed to maximize heat dissipation efficiency while maintaining structural stability and portability.

[0003] At present, radiators are mainly made by aluminum extrusion, die casting, machining, skiving (also called scraped radiator), etc. However, as the size of the radiator becomes larger and larger, and in order to better adapt to heating components such as electronic equipment to improve heat dissipation efficiency, the structure of the radiator becomes more and more complex, and the heat dissipation teeth become higher and higher. It is difficult to obtain the required specific structure using aluminum extrusion; and the die casting one-piece molding method, as the size of the radiator increases and the structure becomes specific, the cost increases significantly, and the longer heat dissipation teeth increase the difficulty of demolding the mold, resulting in limited tooth height. The heat dissipation efficiency of the radiator made by die casting one-piece molding is relatively low due to material reasons, and the pass rate of die casting molding is also relatively low; although machining can carve out the shape required by the radiator, the processing efficiency is low and the mass production cost is too high; although skiving can achieve high heat dissipation efficiency, it cannot be applied to components with slightly complex structures. In view of this, in order to solve the above problems, the radiator of the present application is proposed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a radiator which is easy to manufacture, has a high pass rate, is convenient for mass production, and has better thermal conductivity.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A radiator, comprising:

[0007] A bottom frame, wherein a concave cavity for accommodating a heating element is formed on one side of the bottom frame, a step groove is formed on a side of the bottom frame away from the concave cavity, and a cavity hole communicating with the concave cavity is formed on an inner bottom wall of the step groove; and

[0008] The heat sink includes a heat conducting plate, a heat conducting protrusion and a plurality of heat dissipation teeth, wherein the heat dissipation teeth are spaced apart on the same side of the heat conducting plate, the heat conducting protrusion is arranged on the side of the heat conducting plate away from the heat dissipation teeth, the heat conducting plate is adaptively accommodated in the step groove, and the heat conducting protrusion is passed through the cavity, and the outer wall of the heat conducting protrusion is sealed with the inner wall of the cavity.

[0009] Optionally, the outer wall of the thermally conductive bump is welded to the inner wall of the cavity.

[0010] Optionally, the outer wall of the heat-conducting bump and the inner wall of the cavity are welded by friction stir welding.

[0011] Optionally, the bottom frame includes a frame body and two surrounding blocks, the concave cavity, the step groove and the cavity hole are all located on the frame body, the two surrounding blocks are both arranged on a side surface of the frame body close to the step groove, and the two surrounding blocks are located on opposite sides of the step groove.

[0012] Optionally, two external connection ears are provided on an outer side wall of the frame body and are spaced apart from each other.

[0013] Optionally, the frame body, the surrounding block, and the external ear are integrally formed into the bottom frame by die-casting.

[0014] Optionally, a closed sealing groove is provided on the frame body surrounding the concave cavity.

[0015] Optionally, the frame is further provided with a plurality of locking holes distributed at intervals.

[0016] Optionally, a protective layer is provided on the surface of the radiator.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] The radiator of the present invention includes a base frame and a heat dissipation element. A concave cavity for accommodating the heating element is provided on one side of the base frame. A step groove is also provided on the side of the base frame away from the concave cavity. A cavity hole communicating with the concave cavity is provided on the inner bottom wall of the step groove. The heat dissipation element includes a heat conducting plate, a heat conducting protrusion and a plurality of heat dissipation teeth. The heat dissipation teeth are arranged at intervals on the same side of the heat conducting plate. The heat conducting protrusion is arranged on the side of the heat conducting plate away from the heat dissipation teeth. The heat conducting plate is adaptively accommodated in the step groove, and the heat conducting protrusion is penetrated through the cavity hole, and the outer wall of the heat conducting protrusion is sealed with the inner wall of the cavity hole. In this way, the radiator is set to a structure in which a base frame and a heat sink are installed in combination, wherein the heat sink can be manufactured by aluminum extrusion, copper or aluminum machining, skiving, or even die-casting of high thermal conductivity materials, while the base frame is manufactured by die-casting. Therefore, even if the structure of the base frame is designed to be unique, it can greatly reduce the manufacturing difficulty of the radiator, effectively improve the qualification rate of the radiator, facilitate mass production, and effectively ensure that the assembled radiator has excellent thermal conductivity and heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a radiator according to one embodiment of the present invention;

[0021] Figure 2 for Figure 1 An exploded view of the radiator is shown;

[0022] Figure 3 for Figure 1 An exploded view of the heat sink shown from another angle;

[0023] Figure 4 for Figure 1 A schematic cross-sectional view of the radiator shown;

[0024] Figure 5 for Figure 1 The manufacturing method of the heat sink is shown in the flowchart.

[0025] Description of reference numerals:

[0026] 10. Radiator; 100. Bottom frame; 200. Heat dissipation element; 111. Concave cavity; 112. Step groove; 113. Cavity hole; 210. Heat conduction plate; 220. Heat conduction bump; 230. Heat dissipation tooth; 110. Frame; 120. Surrounding block; 130. External ear; 114. Sealing groove; 115. Locking hole. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply 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 invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030] In the embodiments of the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and can refer to 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 the embodiments of the present invention based on specific circumstances.

[0031] like Figures 1 to 4 As shown, a radiator 10 includes a base frame 100 and a heat sink 200. A concave cavity 111 for accommodating a heating element is provided on one side of the base frame 100. A step groove 112 is also provided on a side of the base frame 100 away from the concave cavity 111. A cavity 113 communicating with the concave cavity 111 is provided on the inner bottom wall of the step groove 112. The heat sink 200 includes a heat conducting plate 210, a heat conducting protrusion 220 and a plurality of heat dissipation teeth 230. The heat dissipation teeth 230 are arranged at intervals on the same side of the heat conducting plate 210. The heat conducting protrusion 220 is arranged on the side of the heat conducting plate 210 away from the heat dissipation teeth 230. The heat conducting plate 210 is adaptively accommodated in the step groove 112, and the heat conducting protrusion 220 is penetrated through the cavity 113, and the outer wall of the heat conducting protrusion 220 is sealed with the inner wall of the cavity 113.

[0032] It should be noted that heating components, such as electronic devices, are mounted within the cavity 111, ensuring full contact between the heating component and the heat sink 10. A stepped groove 112 is defined on the other side of the base frame 100, and a cavity 113 is defined on the inner bottom wall of the stepped groove 112, communicating with the cavity 111. Furthermore, a heat-conducting bump 220 is located on one side of the heat-conducting plate 210, and each heat-dissipating tooth 230 is located on the other side of the heat-conducting plate 210, with each heat-dissipating tooth 230 spaced apart. In this way, the heat sink 200 and the base frame 100 are separate, independent structures that can be manufactured separately. After the base frame 100 and the heat sink 200 are manufactured, the heat sink 200 is installed within the base frame 100. Specifically, the heat conducting plate 210 is embedded in the stepped groove 112, so that the heat conducting protrusion 220 passes through the cavity 113. The surface of the heat conducting protrusion 220 is flush with the inner bottom wall of the cavity 111. The outer wall of the heat conducting protrusion 220 is then sealed to the inner wall of the cavity 113 to form a combined structure of the heat sink 10. In this way, the heat sink 10 is configured as a structure in which the base frame 100 and the heat sink 200 are installed in combination, with the heat sink 200 serving as the main heat sink. To improve heat dissipation efficiency, a high thermal conductivity material is selected. The heat sink 200 can be manufactured by processes such as aluminum extrusion, copper or aluminum machining, skiving, and even die-casting of high thermal conductivity materials, and the bottom frame 100 is used to connect the heat sink 200 and the equipment body and ensure their relative position and structural accuracy. Therefore, the bottom frame 100 has lower requirements on the heat dissipation efficiency relative to the heat sink 200, and can be manufactured by die-casting using materials that are easy to die-cast. Therefore, even if the structure of the bottom frame 100 is specifically designed to suit the installation scenario, it can greatly reduce the manufacturing difficulty of the radiator 10, effectively improve the qualified rate of the radiator 10, facilitate mass production, and at the same time effectively ensure that the assembled radiator 10 has excellent thermal conductivity and heat dissipation performance.

[0033] In one embodiment, when the heat sink 200 is a skived tooth, especially when the heat sink teeth 230 are high, dense, and thin, in order to prevent them from being deformed or even broken, a ventilated and breathable protective cover can be provided on the heat sink 200 to protect the heat sink teeth 230.

[0034] In one embodiment, the thermally conductive bump 220 can be bonded to the outer wall and the cavity 113 by adhesive thermally conductive adhesive, so that the thermally conductive bump 220 and the bottom frame 100 are sealed and installed, while ensuring that heat can be stably transferred from the bottom frame 100 to the heat sink 200.

[0035] Furthermore, in one embodiment, the heat sink 200 and the bottom frame 100 can be locked and connected by fasteners such as bolts, wherein the heat sink 200 and the bottom frame 100 are sealed by a sealing ring.

[0036] Furthermore, in one embodiment, the outer wall of the heat-conducting protrusion 220 is welded to the inner wall of the cavity 113, thereby ensuring good sealing between the heat-conducting protrusion 220 and the bottom frame 100 and ensuring the heat conduction efficiency between the bottom frame 100 and the heat-conducting protrusion 220. For example, the heat-conducting protrusion 220 and the inner wall of the cavity 113 can be welded by arc welding, laser welding, electron beam welding, resistance welding, gas welding, friction welding, and stir friction welding. In particular, the welding quality of stir friction welding is stable, and defects such as pores and cracks of common welding will not occur. It has good sealing and can effectively improve the mechanical properties between the heat-conducting protrusion 220 and the bottom frame 100. Therefore, stir friction welding is preferably used to seal the heat-conducting protrusion 220 and the bottom frame 100.

[0037] like Figures 1 to 4 As shown, in one embodiment, the bottom frame 100 includes a frame body 110 and two surrounding blocks 120, the concave cavity 111, the step groove 112 and the cavity hole 113 are all located on the frame body 110, and the two surrounding blocks 120 are both arranged on a side surface of the frame body 110 close to the step groove 112, and the two surrounding blocks 120 are located on opposite sides of the step groove 112.

[0038] It should be noted that the block 120 is located on the side of the frame 110 that is close to the step groove 112. In this way, when the heat sink 200 is installed in the step groove 112, the two blocks 120 are located on both sides of each heat dissipation tooth 230. Moreover, the extension line of the length extension direction of the block 120 is parallel to the extension line of the length extension direction of the heat dissipation tooth 230. In this way, the block 120 is used to protect each heat dissipation tooth 230, which can prevent the block 120 from being deformed due to collision. Furthermore, in one embodiment, the thickness of the block 120 gradually decreases in the direction away from the frame 110. In this way, when the bottom frame 100 is manufactured by die casting, it is convenient to demold the block 120. In one embodiment, the minimum thickness of the block 120 is greater than the thickness of the heat dissipation tooth 230. In this way, the block 120 can effectively protect the heat dissipation tooth 230.

[0039] like Figure 1 As shown, in one embodiment, two external ears 130 are disposed on an outer side wall of the frame body 110 and are spaced apart from each other.

[0040] It should be noted that since the cavity 111 is used to accommodate a relatively large heating element, two spaced-apart external ears 130 are provided on the outer wall of the frame 110 to facilitate installation or removal of the heat sink 10 and the heating element. Thus, the external ears 130 allow the frame 110 and the heating element to be hingedly mounted, making it easy to snap the frame 110 onto or lift it off the heating element.

[0041] Furthermore, in one embodiment, the frame 110, the surrounding block 120, and the external ear 130 are integrally formed into the bottom frame 100 by die-casting. In this way, the bottom frame 100 manufactured by die-casting has sufficient structural strength between the frame 110, the surrounding block 120, and the external ear 130.

[0042] like Figure 3 and Figure 4 As shown, in one embodiment, a closed sealing groove 114 is formed on the frame 110 around the concave cavity 111 .

[0043] In this way, when the heat sink 10 is installed on a heating element for use, a sealing ring is installed in the sealing groove 114 to ensure that a good sealing environment is maintained in the cavity 111 .

[0044] like Figure 1 As shown, in one embodiment, a plurality of locking holes 115 are provided at intervals on the frame body 110. Thus, the locking holes 115 are used to pass screws, making the bottom frame 100 easy to install.

[0045] In one embodiment, a protective layer is provided on the surface of the heat sink 10. For example, the protective layer can be formed on the surface of the heat sink 10 by anodizing, sandblasting, spraying, nickel or chromium plating, chemical conversion coating, or wire drawing. In this application, spraying is preferred to form the protective layer on the surface of the heat sink 10, as this can further improve the overall heat dissipation efficiency, corrosion resistance, and wear resistance of the heat sink 10.

[0046] like Figure 5 As shown, a method for manufacturing a radiator includes the following steps:

[0047] Step S10: manufacturing a bottom frame by die-casting, wherein a concave cavity is formed on one side of the bottom frame, a step groove is formed on the other side, and a cavity hole communicating with the concave cavity is formed on the inner bottom wall of the step groove;

[0048] Step S20: Obtain a heat sink, wherein the heat sink includes a heat conducting plate, a heat conducting protrusion, and a plurality of heat dissipation teeth, wherein the heat conducting protrusion is located on one side of the heat conducting plate, and the heat dissipation teeth are located on the other side of the heat conducting plate;

[0049] Step S30: placing the heat sink on the bottom frame so that the heat conducting plate fits snugly in the step groove and the heat conducting protrusion passes through the cavity;

[0050] Step S40: sealingly connecting the outer wall of the heat-conducting bump to the inner wall of the cavity to obtain a heat sink.

[0051] It should be noted that the bottom frame is integrally formed by die-casting, which can improve the manufacturing efficiency of the bottom frame and effectively ensure the structural dimensions and overall structural strength of the bottom frame. For example, the bottom frame can be die-cast using ADC12 aluminum, thereby having good casting properties, high mechanical strength, and being able to withstand a certain load. In this way, the independent heat sink and the bottom frame are sealed and installed to form an integrated radiator. The bottom frame can be designed into any specific structure according to the different heat sinks, which can effectively ensure the heat dissipation efficiency of the radiator while reducing the manufacturing difficulty of the radiator.

[0052] Furthermore, in one embodiment, in step S20, obtaining the heat sink is specifically to manufacture the heat sink by one of processes such as aluminum extrusion, copper or aluminum machining, skiving, or even die-casting of high thermal conductivity materials.

[0053] It should be noted that in this embodiment, the heat sink is manufactured by aluminum extrusion, copper or aluminum machining, skiving, or even die-casting of highly thermally conductive materials. For example, the heat sink can be made of A6063 aluminum and copper. This material has excellent extrusion properties, good corrosion resistance, and good weldability, and can also be heat-treated to increase strength.

[0054] Furthermore, in one embodiment, in step S40 , sealingly connecting the outer wall of the thermally conductive bump to the inner wall of the cavity is specifically performed by sealingly connecting the outer wall of the thermally conductive bump to the inner wall of the cavity by friction stir welding.

[0055] It should be noted that the heat-conducting bumps and the bottom frame are welded and fixed by the stir friction welding process, which, on the one hand, maintains sufficient sealing between the heat sink and the bottom frame, and on the other hand, allows the heat of the bottom frame to be quickly transferred to the heat sink for heat dissipation.

[0056] The above-mentioned embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in the present invention can be understood to include but not be limited to locking and fixing with screws / screws and welding. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A radiator, characterized in that: include: A bottom frame, wherein a concave cavity for accommodating a heating element is formed on one side of the bottom frame, a step groove is formed on a side of the bottom frame away from the concave cavity, and a cavity hole communicating with the concave cavity is formed on the inner bottom wall of the step groove; and The heat sink includes a heat conducting plate, a heat conducting protrusion and a plurality of heat dissipation teeth, wherein the heat dissipation teeth are spaced apart on the same side of the heat conducting plate, the heat conducting protrusion is arranged on the side of the heat conducting plate away from the heat dissipation teeth, the heat conducting plate is adaptively accommodated in the step groove, and the heat conducting protrusion is passed through the cavity, and the outer wall of the heat conducting protrusion is sealed with the inner wall of the cavity.

2. The radiator according to claim 1, characterized in that The outer side wall of the heat-conducting protrusion is welded to the inner side wall of the cavity.

3. The radiator according to claim 2, characterized in that The outer wall of the heat-conducting bump and the inner wall of the cavity are welded by friction stir welding.

4. The radiator according to claim 3, characterized in that The bottom frame includes a frame body and two surrounding blocks. The concave cavity, the step groove and the cavity hole are all located on the frame body. The two surrounding blocks are both arranged on a side surface of the frame body close to the step groove, and the two surrounding blocks are located on opposite sides of the step groove.

5. The radiator according to claim 4, characterized in that Two external connection ears are arranged on an outer side wall of the frame body.

6. The radiator according to claim 5, characterized in that The frame body, the surrounding block, and the external ear are integrally formed into the bottom frame by die-casting.

7. The radiator according to claim 6, characterized in that The frame body is provided with a closed sealing groove surrounding the concave cavity.

8. The radiator according to claim 6, characterized in that The frame is also provided with a plurality of locking holes distributed at intervals.

9. The radiator according to claim 6, characterized in that A protective layer is provided on the surface of the radiator.

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