Cooling fin assembly and warmer
By designing the cooling surface of the bending structure on Yanting's cooling tablet components, the problem of low heat dissipation performance of Yanting is solved, and the more efficient heat dissipation effect and stronger mechanical strength are achieved.
Patent Information
- Application Number
- CN202323571390.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing oil tingles have low heat dissipation performance, resulting in poor heating effect of the tingles. At this stage, heat dissipation is usually achieved by adjusting the power of the heating body, but the efficiency is low.
A heat sink component is designed. The curved surface of the heat sink to form a folding structure, increase the heat dissipation area, and improve the mechanical strength and heat dissipation efficiency of the heat sink through the folding edge and edging structure.
Without increasing the power of thermal body, the heat dissipation of the unit time is improved, the heat dissipation efficiency of heating equipment is improved, and the competitiveness of the heat sink products is enhanced.
Smart Images
Figure CN222392963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, in particular to a heat sink assembly and a heater. Background Art
[0002] Oil heaters are electric heaters with good heating effect and convenient heating, and have been widely used. With the market popularity of heating products, users' pain points in daily use and experience have also increased.
[0003] According to research, the heat dissipation performance of oil heaters is often related to the structure of the heater sheet, which restricts the heating effect of the oil heater. The temperature rise of the oil heater body on the market is still significantly different from the industry standard. At present, it is often achieved by adjusting the power of the heating element, resulting in inefficient heat dissipation of the heater body. Utility Model Content
[0004] In view of this, the utility model provides a heat sink assembly and a heater to solve the problem of low heat dissipation efficiency of the existing oil heater.
[0005] In a first aspect, the utility model provides a heat sink assembly, comprising a heat sink having a mating surface and a heat dissipation surface, wherein the heat dissipation surface is bent in a direction away from the mating surface or in a direction toward the mating surface to form a folded edge structure.
[0006] The heat dissipation surface of the heat sink is bent to form a folded edge structure, which increases the heat dissipation area of the heat sink. After the heat sink is installed in the heating device, the heat dissipation per unit time is increased without increasing the power of the heating element, thereby improving the heat dissipation efficiency of the heating device; and the mechanical strength of the heat sink is also improved after the heat sink is bent.
[0007] In an optional embodiment, the heat sink is a small heat sink having a small sink mating surface and a small sink heat dissipation surface, and a small sink fold is formed on the small sink heat dissipation surface in a direction away from the small sink mating surface.
[0008] Beneficial effect: By adding a folded edge to the heat dissipation surface of the heat dissipation sheet, the heat dissipation area is increased, and the heat can be quickly dissipated into the air. The heat dissipation per unit time can be increased without increasing the power of the heating element, thereby improving the heat dissipation efficiency and enhancing the competitiveness of the radiator product.
[0009] In an optional embodiment, the folded edges of the small piece are formed on both sides of the heat dissipation surface of the small piece close to its edge.
[0010] Beneficial effect: The folded edges of the small piece are located on both sides of the heat dissipation surface. When the heat dissipation small piece is installed in the heat sink assembly, the folded edges are located on both sides of the heat dissipation channel, which can guide the heat flow. The heat forms a chimney-like upward diversion and heat dissipation, which guides most of the heat upward and prevents the heat from escaping to the surroundings.
[0011] In an optional embodiment, the edge of the folded edge of the small piece is bent again in an arc shape to form a wavy flange.
[0012] Beneficial effects: The wavy flange increases the mutual viscosity between two adjacent layers of the fluid, improves the heat dissipation coefficient of the heat sink, and enhances the heat dissipation capacity of the heating equipment.
[0013] In an optional embodiment, the heat sink is a heat sink front plate, the heat sink front plate has a front plate mating surface and a front plate heat sink surface, the front plate heat sink surface is bent toward the front plate mating surface to form a front plate folded edge.
[0014] Beneficial effect: a front plate folding edge is arranged on the heat dissipation front plate to increase the heat dissipation area of the heat dissipation front plate and improve the overall heat dissipation performance; the heat dissipation front plate is located at one end of the heating device, and the front plate folding edge is bent toward the mating surface and inward, which is not easy to cause scratches and is also more beautiful.
[0015] In an optional embodiment, the heat sink is a large heat sink having a large-piece mating surface and a large-piece heat dissipation surface, and the large-piece heat dissipation surface is bent toward the large-piece mating surface to form a large-piece folded edge.
[0016] Beneficial effect: a large folded edge is provided on the heat sink to increase the heat dissipation area of the heat sink and improve the overall heat dissipation performance; the large folded edge is bent toward the mating surface, which has good consistency and is more beautiful.
[0017] In an optional embodiment, the heat dissipation structure is a heat dissipation rear plate, the heat dissipation rear plate has a rear plate mating surface and a rear plate heat dissipation surface, and the rear plate heat dissipation surface is bent in the direction of the rear plate mating surface to form a rear plate folded edge.
[0018] Beneficial effect: a rear plate folding edge is arranged on the heat dissipation rear plate to increase the heat dissipation area of the heat dissipation rear plate and improve the overall heat dissipation performance; the heat dissipation rear plate is located at the other end of the heating device, and the rear plate folding edge is bent toward the mating surface and inward, which is not easy to cause scratches and is also more beautiful.
[0019] In the second aspect, the utility model also provides a heat sink assembly, comprising any of the above-mentioned heat sink fins and the above-mentioned heat sink front fin, wherein the heat sink front fin and the heat sink fin are connected through the front fin mating surface and the fin mating surface to form a first heat sink assembly.
[0020] Beneficial effect: The heat sink small piece is buckled on the heat sink front piece to form a first heat sink assembly. Since the heat sink small piece and the heat sink front piece are respectively provided with a small piece folding edge and a front piece folding edge, the heat sink area of the first heat sink assembly is increased and the heat sink efficiency is greatly improved.
[0021] In a third aspect, the utility model also provides a heat sink assembly, comprising any of the above-mentioned small heat sinks and the above-mentioned large heat sinks, the large heat sink and the small heat sink are connected through the large heat sink mating surface and the small heat sink mating surface to form a second heat sink assembly, and a circulation chamber for heat exchange medium is formed between the large heat sink and the small heat sink.
[0022] Beneficial effect: The small heat sink is buckled on the large heat sink to form a second heat sink assembly. Since the small heat sink and the large heat sink are respectively provided with small folded edges and large folded edges, the heat sink area of the second heat sink assembly is increased and the heat sink efficiency is greatly improved.
[0023] In a fourth aspect, the utility model also provides a heat sink assembly, comprising any of the above-mentioned heat sink fins and the above-mentioned heat sink rear fin, wherein the heat sink rear fin and the heat sink fin are connected through the rear fin mating surface and the fin mating surface to form a third heat sink assembly.
[0024] Beneficial effect: The heat sink small sheet is buckled on the heat sink rear sheet to form a third heat sink assembly. Since the heat sink small sheet and the heat sink rear sheet are respectively provided with a small sheet folding edge and a front sheet folding edge, the heat sink area of the first heat sink assembly is increased and the heat sink efficiency is greatly improved.
[0025] In a fifth aspect, the utility model further provides a heater, comprising the above-mentioned heat sink assembly, wherein the first heat sink assembly, at least one of the second heat sink assembly and the third heat sink assembly are sequentially connected and arranged.
[0026] Beneficial effect: Since the heater includes the first heat dissipation component, the second heat dissipation component and the third heat dissipation component, it has the same effect as the heat sink component, which will not be described in detail here. And the improvement in heat dissipation performance is the sum of the three.
[0027] In an optional embodiment, the heater is an oil-filled electric heater.
[0028] Beneficial effects: a front plate folding edge is set on the heat dissipation front plate of the oil-filled electric heater to increase the heat dissipation area of the heat dissipation front plate, and the front plate folding edge is bent in the direction of the mating surface and faces inward, which is not easy to cause scratches and is more beautiful; a small plate folding edge is added to the heat dissipation surface of the small heat dissipation plate, the heat dissipation area is increased, and the heat can be quickly dissipated into the air. Without increasing the power of the heating element, the heat dissipation per unit time can be increased, and the heat dissipation efficiency is improved; a large plate folding edge is set on the large heat dissipation plate to increase the heat dissipation area of the large heat dissipation plate, and the large plate folding edge is bent in the direction of the mating surface , good consistency, and more beautiful; a rear plate folding edge is set on the heat dissipation rear plate to increase the heat dissipation area of the heat dissipation rear plate and improve the overall heat dissipation performance; the heat dissipation rear plate is located at the other end of the heating device, and the rear plate folding edge is bent in the direction of the mating surface and faces inward, which is not easy to cause scratches and is more beautiful; since the first heat dissipation component includes a front plate and a small plate, the second heat dissipation component includes a large plate and a small plate, and the third heat dissipation component includes a rear plate and a small plate, the overall heat dissipation area is increased, the heat dissipation performance is greatly improved, and the user experience and product competitiveness are also improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A three-dimensional diagram of a heat dissipation sheet according to an embodiment of the utility model;
[0031] Figure 2 This is a front view of a heat sink according to an embodiment of the utility model;
[0032] Figure 3 A side view of a heat sink according to an embodiment of the utility model;
[0033] Figure 4 A cross-sectional view of a heat sink according to an embodiment of the utility model;
[0034] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure of part A;
[0035] Figure 6 A three-dimensional structural diagram of a heat dissipation front plate according to an embodiment of the utility model;
[0036] Figure 7 This is a front view of a heat dissipation front plate according to an embodiment of the utility model;
[0037] Figure 8 A side view of a heat dissipation front plate according to an embodiment of the utility model;
[0038] Fig. 9 A cross-sectional view of a heat dissipation front plate according to an embodiment of the utility model;
[0039] Fig.10 for Fig. 9 A schematic diagram of the local enlarged structure of part B;
[0040] Fig.11 A three-dimensional structural diagram of a first heat sink assembly according to an embodiment of the utility model from a first viewing angle;
[0041] Fig.12 A second perspective three-dimensional structural diagram of a first heat sink assembly according to an embodiment of the utility model;
[0042] Fig.13 A third-view stereoscopic structural diagram of a heat dissipation sheet according to an embodiment of the utility model;
[0043] Fig.14 This is a front view of a heat dissipation sheet according to an embodiment of the utility model;
[0044] Fig.15 A side view of a heat sink according to an embodiment of the utility model;
[0045] Fig.16 A cross-sectional view of a heat sink according to an embodiment of the utility model;
[0046] Fig.17 for Fig.16 A partial enlarged structural diagram of part C in the middle;
[0047] Fig.18 A three-dimensional structural diagram of a second heat sink assembly according to an embodiment of the utility model;
[0048] Fig.19 This is a front view of a second heat sink assembly according to an embodiment of the utility model;
[0049] Fig. 20 A side view of a second heat sink assembly according to an embodiment of the utility model;
[0050] Fig.21 A top view of a second heat sink assembly according to an embodiment of the utility model;
[0051] Fig. 22 A three-dimensional diagram of a heat dissipation rear plate according to an embodiment of the utility model;
[0052] Fig.23 This is a front view of a heat dissipation rear plate according to an embodiment of the utility model;
[0053] Fig.24 A side view of a heat dissipation rear plate according to an embodiment of the utility model;
[0054] Fig.25 A cross-sectional view of a heat dissipation rear plate according to an embodiment of the utility model;
[0055] Fig.26 A first-view stereoscopic diagram of a third heat sink assembly according to an embodiment of the utility model;
[0056] Fig. 27 A third heat sink assembly according to an embodiment of the present utility model is shown in a second perspective perspective;
[0057] Fig.28 A third perspective stereogram of a third heat sink assembly according to an embodiment of the utility model;
[0058] Fig.29 This is a main structural diagram of an oil-filled electric heater according to an embodiment of the utility model;
[0059] Fig.30 This is a top view of an oil-filled electric heater according to an embodiment of the utility model;
[0060] Fig.31 This is an exploded structural diagram of an oil-filled radiator electric heater according to an embodiment of the utility model, in which arrows indicate the flow direction of hot air.
[0061] Description of reference numerals:
[0062] 1. Heat dissipation sheet; 11. Folding edge of sheet; 12. Flanging;
[0063] 2. Heat dissipation front piece; 21. Folding edge of front piece;
[0064] 3. Large heat sink; 31. Large folded edge;
[0065] 4. Heat dissipation rear plate; 41. Folding edge of rear plate;
[0066] 100, first heat dissipation component; 200, second heat dissipation component; 300, third heat dissipation component; 400, lower oil bag; 500, temperature limit bracket; 600, temperature limiter; 700, inner thread; 800, sealing ring; 900, upper oil bag. DETAILED DESCRIPTION
[0067] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0068] In the description of the utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model 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 limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0069] In the description of the present invention, it is also necessary to explain 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0070] Combine the following Figures 1 to 31 , describing an embodiment of the utility model.
[0071] According to an embodiment of the utility model, on one hand, a heat sink assembly is provided, comprising a heat sink having a mating surface and a heat dissipation surface, wherein the heat dissipation surface is bent in a direction away from the mating surface or in a direction toward the mating surface to form a folded edge structure.
[0072] The heat dissipation surface of the heat sink is bent to form a folded edge structure, which increases the heat dissipation area of the heat sink. After the heat sink is installed in the heating device, the heat dissipation per unit time is increased without increasing the power of the heating element, thereby improving the heat dissipation efficiency of the heating device; and the mechanical strength of the heat sink is also improved after the heat sink is bent.
[0073] In one embodiment, the heat sink is a heat sink 1, which has a heat sink mating surface and a heat sink surface. A heat sink fold 11 is formed on the heat sink surface away from the heat sink mating surface. Figure 1-Figure 5 .
[0074] By adding a small piece folding edge 11 to the heat dissipation surface of the heat dissipation small piece 1, the heat dissipation area is increased, and the heat can be quickly dissipated into the air. The heat dissipation per unit time can be increased without increasing the power of the heating element, thereby improving the heat dissipation efficiency and enhancing the competitiveness of the radiator product.
[0075] In one embodiment, the small piece folded edges 11 are formed on both sides of the small piece heat dissipation surface close to the edge thereof.
[0076] The folded edges 11 of the small piece are located on both sides of the heat dissipation surface. When the heat dissipation small piece 1 is installed in the heat dissipation fin assembly, the folded edges are located on both sides of the heat dissipation channel, which can guide the heat flow. The heat forms a chimney-like upward diversion and dissipation, which guides most of the heat upward to prevent the heat from escaping to the surroundings.
[0077] In one embodiment, the edge of the small piece folded edge 11 is bent again in an arc shape to form a wavy flange 12 .
[0078] The wavy flange 12 increases the mutual viscosity between two adjacent layers of the fluid, improves the heat dissipation coefficient of the heat sink, and enhances the heat dissipation capacity of the heating device.
[0079] In one embodiment, the heat sink is a heat sink front plate 2, the heat sink front plate 2 has a front plate mating surface and a front plate heat sink surface, the front plate heat sink surface is bent in the direction of the front plate mating surface to form a front plate fold 21. Figure 6-Figure 10 .
[0080] A front plate folded edge 21 is provided on the heat dissipation front plate 2 to increase the heat dissipation area of the heat dissipation front plate 2 and improve the overall heat dissipation performance; the heat dissipation front plate 2 is located at one end of the heating device, and the front plate folded edge 21 is bent toward the mating surface and faces inward, which is not easy to cause scratches and is also more beautiful.
[0081] In one embodiment, the heat dissipation structure is a large heat dissipation sheet 3 , which has a large sheet matching surface and a large sheet heat dissipation surface. The large sheet heat dissipation surface is bent toward the large sheet matching surface to form a large sheet folded edge 31 .
[0082] A large folded edge 31 is provided on the heat dissipation sheet 3 to increase the heat dissipation area of the heat dissipation sheet 3 and improve the overall heat dissipation performance; the large folded edge 31 is bent toward the mating surface, which has good consistency and is more beautiful. Figure 13-Figure 17 .
[0083] In one embodiment, the heat sink is a heat sink rear plate 4, which has a rear plate mating surface and a rear plate heat sink surface. The rear plate heat sink surface is bent in the direction of the rear plate mating surface to form a rear plate fold 41. Figure 22-Figure 25 .
[0084] A rear plate folded edge 41 is provided on the heat dissipation rear plate 4 to increase the heat dissipation area of the heat dissipation rear plate 4 and improve the overall heat dissipation performance; the heat dissipation rear plate 4 is located at the other end of the heating device, and the rear plate folded edge 41 is bent toward the mating surface and faces inward, which is not easy to cause scratches and is also more beautiful.
[0085] According to an embodiment of the present utility model, on the other hand, Figure 11-Figure 12 As shown, the utility model also provides a first heat sink assembly, comprising any of the above-mentioned heat sink 1 and the above-mentioned heat sink front plate 2, wherein the heat sink front plate 2 and the heat sink 1 are connected through the front plate mating surface and the small plate mating surface to form a first heat sink assembly 100.
[0086] The heat sink 1 is buckled on the heat sink front plate 2 to form a first heat sink assembly 100. Since the heat sink 1 and the heat sink front plate 2 are respectively provided with a heat sink fold 11 and a front plate fold 21, the heat sink area of the first heat sink assembly 100 is increased and the heat sink efficiency is greatly improved.
[0087] According to an embodiment of the present utility model, on the other hand, Figure 18-Figure 21 As shown, the utility model also provides a second heat sink assembly, comprising any of the above-mentioned small heat sinks 1 and the above-mentioned large heat sink 3, the large heat sink 3 and the small heat sink 1 are connected through the large heat sink mating surface and the small heat sink mating surface to form a second heat sink assembly 200, and a circulation chamber for heat exchange medium is formed between the large heat sink 3 and the small heat sink 1.
[0088] The small heat sink 1 is buckled on the large heat sink 3 to form a second heat sink assembly 200. Since the small heat sink 1 and the large heat sink 3 are respectively provided with a small heat sink fold 11 and a large heat sink fold 31, the heat dissipation area of the second heat sink assembly 200 is increased and the heat dissipation efficiency is greatly improved.
[0089] According to an embodiment of the present utility model, on the other hand, Figure 26-Figure 28 As shown, the utility model also provides a third heat sink assembly, comprising any of the above-mentioned heat sink 1 and the above-mentioned heat sink rear plate 4, wherein the heat sink rear plate 4 is connected to the heat sink 1 through the rear plate mating surface and the small plate mating surface to form a third heat sink assembly 300.
[0090] The heat sink 1 is buckled on the heat sink rear plate 4 to form a third heat sink assembly 300. Since the heat sink 1 and the heat sink rear plate 4 are respectively provided with a small plate folding edge 11 and a front plate folding edge 21, the heat dissipation area of the first heat sink assembly 100 is increased and the heat dissipation efficiency is greatly improved.
[0091] According to an embodiment of the present invention, on another aspect, the present invention further provides a heater, including a heat sink assembly, wherein the first heat dissipation assembly 100, at least one of the second heat dissipation assembly 200 and the third heat dissipation assembly 300 are sequentially connected and arranged.
[0092] Because the heater includes the first heat dissipation assembly 100, the second heat dissipation assembly 200 and the third heat dissipation assembly 300, and has the same effect as the heat sink assembly, it will not be described in detail here. And the improvement of heat dissipation performance is the sum of the three.
[0093] Specifically, the heater is an oil-filled electric heater.
[0094] A front plate folding edge 21 is provided on the heat dissipation front plate 2 of the oil-filled electric heater to increase the heat dissipation area of the heat dissipation front plate 2. The front plate folding edge 21 is bent in the direction of the mating surface and faces inward, which is not easy to cause scratches and is more beautiful. A small plate folding edge 11 is added to the heat dissipation surface of the heat dissipation small plate 1, and the heat dissipation area is increased, which can quickly dissipate heat into the air. Without increasing the power of the heating element, the heat dissipation per unit time can be increased, thereby improving the heat dissipation efficiency. A large plate folding edge 31 is provided on the heat dissipation large plate 3 to increase the heat dissipation area of the heat dissipation large plate 3, and the large plate folding edge 31 is bent in the direction of the mating surface, which is consistent with the heat dissipation surface. The heat dissipation performance is good and it is also more beautiful; a rear plate folded edge 41 is set on the heat dissipation rear plate 4 to increase the heat dissipation area of the heat dissipation rear plate 4 and improve the overall heat dissipation performance; the heat dissipation rear plate 4 is located at the other end of the heating device, and the rear plate folded edge 41 is bent in the direction of the mating surface and faces inward, which is not easy to cause scratches and is also more beautiful; since the first heat dissipation component 100 includes a front plate and a small plate, the second heat dissipation component 200 includes a large plate and a small plate, and the third heat dissipation component 300 includes a rear plate and a small plate, the overall heat dissipation area is increased, the heat dissipation performance is greatly improved, and the user experience and product competitiveness are also improved.
[0095] like Fig.29 and Fig.30As shown, the oil-filled radiator electric heater comprises five parts: a first radiator assembly, a second radiator assembly, a third radiator assembly, a temperature limit bracket 500 and a temperature limiter 600. The first radiator assembly is arranged on the left side of the oil-filled radiator electric heater, the second radiator assembly is distributed in the middle of the oil-filled radiator electric heater, and the third radiator assembly is arranged on the right side of the radiator body assembly. The radiator body assemblies are connected by welding. Shortening the height of the radiator body can reduce the volume of the oil-filled radiator electric heater, and after reducing the height of the upper oil bag 900 and the lower oil bag 400, the radiator body space can be increased, which can increase the contact with air and improve the heat dissipation of the radiator fins.
[0096] The first heat sink assembly is composed of a front heat sink 2, a small heat sink 1, a temperature limiter 600 bracket, a temperature limiter 600, an inner thread 700 and a sealing ring 800. The front heat sink 2 and the small heat sink 1 constitute the main structure of the first heat sink assembly. The temperature limit bracket 500 is connected to the front heat sink 2 by welding, and the temperature limiter 600 is connected to the temperature limit bracket 500 by screws; the inner thread 700 is used to install the heating element assembly. This assembly is a conventional assembly relationship and will not be described here. The sealing ring 800 component is installed at the oil bag 900 position. On the one hand, it seals the thermal oil to prevent liquid leakage. On the other hand, it is provided with screws and can be connected to the front shell of the controller. This assembly is also a conventional assembly relationship and will not be described here one by one. The second heat sink assembly is composed of a large heat sink 3 and a small heat sink 1, which is the main part of the heat sink assembly. The interior of the second heat sink assembly is a passage to realize the circulation of thermal oil. The third heat sink assembly is composed of a small heat sink 1, a rear heat sink 4 and a sealing ring 800. The rear heat sink 4 and the small heat sink 1 constitute the main structure of the third heat sink assembly. The sealing ring 800 is welded to the rear heat sink 4 to realize the tail anti-scalding design. Folding is added to the front heat sink 2, the large heat sink 3 and the rear heat sink 4. The folding distance should not be too long. Taking the large heat sink 3 and the small heat sink 1 as an example, on the one hand, when the large heat sink 3 and the small heat sink 1 are welded by circular welding, there is deformation, and the heat sink needs to be flattened. Therefore, if the folding is too long, it is easy to interfere with the flattening process. On the other hand, if the bend is too small, it is not easy to form, which increases the difficulty of the process. Folding can effectively increase the heat dissipation area and increase the structural strength of the heat sink. The small heat sink 1 adds a folding and a flange 12 structure, and the flange 12 part is designed to be wavy. Fig.31 It is an exploded view of the structure of the oil-filled radiator electric heater, including a temperature limiter 600 bracket, a temperature limiter 600, an inner tooth 700, a sealing ring 800 component, a heat sink front plate 2, a heat sink large plate 3, a heat sink small plate 1, a heat sink rear plate 4 and a sealing ring 800 component.
[0097] It is used for oil-filled electric heaters to heat the heat transfer oil through the heating element. According to Fourier's law Q=-λF, the amount of heat conducted through this layer per unit time is proportional to the local temperature change and the plate area (-: is the transfer direction; λ: thermal conductivity; F is the plate area). It can be seen that increasing the heat dissipation area can increase the heat conduction per unit time. The front heat dissipation sheet 2, the large heat dissipation sheet 3, the small heat dissipation sheet 1, and the rear heat dissipation sheet 4 are increased with curling edges. The small heat dissipation sheet 1 is designed to increase the folding edge + wavy flange 12. Through data analysis, compared with the structure without adding curling and flange 12, the heat dissipation area can be effectively increased by about 30%, which effectively improves the heat dissipation performance of the heat sink assembly. Since the heat sink is a sheet metal part, the heat sink loses heat by absorbing heat and radiating heat. According to the definition of effective radiation between gray bodies, the gray bodies will absorb part of the heat, and the rest will be reflected. The total radiation leaving the unit surface is the effective radiation, Q 1、2 =εθF1(Eb1-Eb2),Q 1、2 is the net heat exchange, and F1 is the initial surface area. E is the radiation force, which is the total amount of radiation energy of all wavelengths emitted by a unit surface per unit time. It can be seen that the effective radiation is positively correlated with the initial surface area. Increasing the heat dissipation area can improve the heat dissipation performance of the body. For actual fluids, it is viscous. In actual fluids, stratified flow occurs. Due to different flow velocities, there is relative sliding between two adjacent layers, and there is an interaction force tangential to the velocity direction, which is called viscosity or internal friction. Experiments show that F = ηS (dv / dx). This formula is called Newton's viscosity law, F is the viscosity, S is the contact area between the two flow layers, dv / dx is the velocity gradient there, and the proportional coefficient η is called the viscosity or viscosity coefficient of the fluid. The heat dissipation sheet 1 of the oil-filled radiator heater adds an arc flange 12, which can increase the viscosity of the interaction force between the two adjacent layers of the fluid, thereby improving the heat dissipation coefficient of the heat sink, thereby improving the heat dissipation capacity of the oil-filled radiator heater.
[0098] The heat sink assembly structure adopts a sheet metal design. By folding the heat sink 1 and wavy design, the heat dissipation area can be effectively increased, the viscosity of the convection friction with the air can be increased, the convection heat transfer coefficient can be increased, and the heating effect of the heat sink can be improved.
[0099] The annular folding structure is used to improve the overall compression resistance of the heat sink. By adjusting the flange 12 and folding of the heat sink 1 structure and the folding structure of the large heat sink 3, the front heat sink 2, and the rear heat sink 4, the heat dissipation area and the impact resistance of the heat sink can be increased.
[0100] Optimize the heat sink structure, optimize the heat dissipation structure by adjusting the size of the heat sink, and adjust the space occupied by the heat sink assembly to achieve the best efficiency of convection heat transfer.
[0101] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A heat sink assembly, characterized in that: include: A heat dissipation sheet (1), the heat dissipation sheet (1) comprising a sheet mating surface and a sheet heat dissipation surface, a sheet folded edge (11) being formed on the sheet heat dissipation surface in a direction away from the sheet mating surface; A heat dissipation front plate (2), the heat dissipation front plate (2) comprising a front plate mating surface and a front plate heat dissipation surface, the front plate heat dissipation surface being bent in the direction of the front plate mating surface to form a front plate folded edge (21); the heat dissipation front plate (2) and the heat dissipation small plate (1) are connected via the front plate mating surface and the small plate mating surface to form a first heat dissipation component (100).
2. The heat sink assembly according to claim 1, characterized in that: The small piece folded edges (11) are formed on both sides of the small piece heat dissipation surface close to the edge thereof.
3. The heat sink assembly according to claim 2, characterized in that: The edge of the small piece folded edge (11) is bent again in an arc shape to form a wave-shaped flange (12).
4. A heat sink assembly, characterized in that: include: A heat dissipation sheet (1), the heat dissipation sheet (1) comprising a sheet mating surface and a sheet heat dissipation surface, a sheet folded edge (11) being formed on the sheet heat dissipation surface in a direction away from the sheet mating surface; A large heat sink (3), wherein the large heat sink (3) has a large-block mating surface and a large-block heat dissipation surface, wherein the large-block heat dissipation surface is bent in the direction of the large-block mating surface to form a large-block folded edge (31); the large heat sink (3) and the small heat sink (1) are connected via the large-block mating surface and the small-block mating surface to form a second heat sink component (200), and a circulation chamber for a heat exchange medium is formed between the large heat sink (3) and the small heat sink (1).
5. A heat sink assembly, characterized in that: include: A heat dissipation sheet (1), the heat dissipation sheet (1) comprising a sheet mating surface and a sheet heat dissipation surface, a sheet folded edge (11) being formed on the sheet heat dissipation surface in a direction away from the sheet mating surface; A heat dissipation rear plate (4), the heat dissipation rear plate (4) comprising a rear plate mating surface and a rear plate heat dissipation surface, the rear plate heat dissipation surface being bent in the direction of the rear plate mating surface to form a rear plate folded edge (41); the heat dissipation rear plate (4) and the heat dissipation small plate (1) are connected via the rear plate mating surface and the small plate mating surface to form a third heat dissipation component (300).
6. A heater, characterized in that: include: A first heat sink assembly, wherein the first heat sink assembly is the heat sink assembly according to any one of claims 1 to 3; a second heat sink assembly, wherein the second heat sink assembly is the heat sink assembly according to claim 4; A third heat sink assembly, wherein the third heat sink assembly is the heat sink assembly according to claim 5, and the first heat sink assembly (100), at least one of the second heat sink assemblies (200), and the third heat sink assembly (300) are sequentially connected and arranged.
7. The heater according to claim 6, characterized in that: The heater is an oil-filled electric heater.
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Heat dissipation structure, cooling fin assembly and warmer
CN117515645A