Cooling fin and lamp
By designing upwardly extending heat dissipation strips and stamped heat dissipation fins on the heat sink, the existing heat dissipation fins are not tightly combined, small heat dissipation area and easy to break, achieving better flexural resistance and heat dissipation effect, and saving materials.
Patent Information
- Application Number
- CN202421860631.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing heat sinks have defects in the combination of not tightly, small heat dissipation area, waste of materials and easy to break, resulting in the unsatisfactory heat dissipation effect of LED lamps.
A heat sink is designed, in which a first heat dissipation strip extending upwardly is connected to the inner wall of the first contact plate between each two connecting plates, and a plurality of second heat dissipation strips extending upwardly is connected to the inner wall of the second contact plate, which increases the flexural resistance of the heat sink, and a heat dissipation fin is made through a stamping process to increase the heat dissipation area.
The flexural resistance of the heat sink is improved, ensuring that the heat sink is not easy to break during transportation and installation, and at the same time, it increases the heat dissipation area, improves the heat dissipation effect of the LED lamp, and saves materials through recycling the heat dissipation wings.
Smart Images
Figure CN223020213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat dissipation, in particular to a heat sink and a lamp. Background Art
[0002] At present, LED lamps are widely used due to their energy saving, environmental protection, long life and small size. However, the higher the junction temperature of LED, the earlier the light decay will occur, resulting in a shorter service life. That is, the higher the junction temperature, the shorter the practical life, and the lower the junction temperature, the longer the practical life. Therefore, how to improve the heat dissipation of LED lamps and reduce the junction temperature of LED lamps as much as possible is a new issue that people are constantly studying and solving.
[0003] As for the current radiators, they are mostly composed of a heat sink base and heat sinks arranged on the heat sink base. The heat sink base is connected to the heat source. After receiving the heat, the heat is transferred to the heat sink and the heat is dissipated through the heat sink. Although various improvements have been made to the traditional heat dissipation profiles, they still have many defects. For example, the heat sink is not tightly combined, which makes it difficult for the heat to be transferred to the heat sink, resulting in unsatisfactory heat dissipation effect. In addition, the existing heat sink has a small heat dissipation area due to unreasonable design; in order to increase the heat dissipation area, some heat sinks are connected to many vertical heat sinks, resulting in a waste of materials. At the same time, the existing heat sink is also easy to break. Utility Model Content
[0004] The utility model aims to provide a heat sink and a lamp, wherein the inner side wall of the first contact plate between every two connecting plates is connected with a first heat sink extending toward the upper end of the first contact plate, and the inner side wall of the second contact plate is connected with a plurality of second heat sinks extending toward the upper end of the second contact plate, thereby increasing the bending resistance of the heat sink and preventing the heat sink from being broken.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] One aspect of an embodiment of the utility model provides a heat sink, which includes: a first contact plate, a first through opening is opened in the middle of the first contact plate; a second contact plate, a second through opening is opened in the middle of the second contact plate, the second contact plate is arranged in the first through opening, and the lower surfaces of the first contact plate and the second contact plate are used to contact the heat body to be dissipated; a plurality of connecting plates, one ends of the plurality of connecting plates are respectively connected to the inner side walls of the first contact plate, and the other ends of the plurality of connecting plates are respectively connected to the outer side walls of the second contact plates; the inner side walls of the first contact plates between every two of the connecting plates are connected to a first heat dissipation strip extending toward the upper end of the first contact plate, and the inner side walls of the second contact plates are connected to a plurality of second heat dissipation strips extending toward the upper end of the second contact plate.
[0007] In some embodiments, the multiple connecting plates are arranged at equal intervals.
[0008] In some embodiments, the first contact plate is provided with a plurality of first heat dissipation openings, and the second contact plate is provided with a plurality of second heat dissipation openings.
[0009] In some embodiments, one side wall of each of the plurality of first heat dissipation openings is connected to a first heat dissipation fin extending upward from the upper end of the first contact plate, and one side wall of each of the plurality of second heat dissipation openings is connected to a second heat dissipation fin extending upward from the upper end of the second contact plate.
[0010] In some embodiments, both the first contact plate and the second contact plate are annular, the outer diameter of the second contact plate is smaller than the inner diameter of the first contact plate, and both the first heat dissipation strip and the second heat dissipation strip are arc-shaped.
[0011] In some embodiments, the heat dissipation fin is made of aluminum.
[0012] In some embodiments, the area of the first heat dissipation fin is the same as that of the first heat dissipation opening, and the area of the second heat dissipation fin is the same as that of the second heat dissipation opening; the heat dissipation fin is made by a stamping process, the first heat dissipation fin is obtained by stamping through the first heat dissipation opening, and the second heat dissipation fin is obtained by stamping through the second heat dissipation opening.
[0013] One aspect of the embodiment of the present invention provides a lamp, which includes the heat dissipation fin as described above and a lamp housing, and the lamp housing and the heat dissipation fin are connected by rivets.
[0014] In some embodiments, the lamp housing is provided with a plurality of screw grooves, and screw groove through openings corresponding to the screw grooves are formed on both the first contact plate and the second contact plate.
[0015] A heat dissipation fin and a lamp according to an embodiment of the present invention have at least the following beneficial effects: In the present application, the inner side wall of the first contact plate between every two connecting plates is connected to a first heat dissipation strip extending upward from the upper end of the first contact plate, and a plurality of second heat dissipation strips extending upward from the upper end of the second contact plate are connected to the inner side wall of the second contact plate, which increases the anti-bending ability of the heat dissipation fin and prevents the heat dissipation fin from being broken. The first heat dissipation fin of the present application is obtained by stamping through the first heat dissipation opening, and the second heat dissipation fin is obtained by stamping through the second heat dissipation opening, which increases the overall heat dissipation area. At the same time, the heat dissipation fins punched out from the heat dissipation openings can be recycled, saving materials. Since the screw grooves on the lamp housing protrude outward, screw groove through openings corresponding to the screw grooves are formed on both the first contact plate and the second contact plate, so as to facilitate the close combination of the heat dissipation fin and the lamp housing, and enable the heat generated by the lamp to be better dissipated through the heat dissipation fin.
[0016] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 Structural schematic diagram of a heat sink according to an embodiment;
[0019] Figure 2 Structural schematic diagram of the heat sink installed on the lamp housing according to an embodiment.
[0020] Explanation of reference numerals in the drawings is as follows: 1, first contact plate; 2, first through port; 3, second contact plate; 4, second through port; 5, connecting plate; 6, first heat dissipation strip; 7, second heat dissipation strip; 8, first heat dissipation opening; 9, second heat dissipation opening; 10, first heat dissipation fin; 11, second heat dissipation fin; 12, lamp housing; 13, screw groove; 14, screw groove through port. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.
[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "middle", "vertical", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0023] The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.
[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.
[0026] The technical solutions of the embodiments of the present application will be briefly described below:
[0027] According to some embodiments, as Figure 1 shown, the present application provides a heat sink, which includes:
[0028] A first contact plate 1, with a first through-hole 2 opened in the middle of the first contact plate 1;
[0029] A second contact plate 3, with a second through-hole 4 opened in the middle of the second contact plate 3. The second contact plate 3 is disposed within the first through-hole 2, and the lower surfaces of the first contact plate 1 and the second contact plate 3 are used to contact the object to be cooled;
[0030] Multiple connecting plates 5, one ends of the multiple connecting plates 5 are respectively connected to the inner sidewalls of the first contact plate 1, and the other ends of the multiple connecting plates 5 are respectively connected to the outer sidewalls of the second contact plate 3;
[0031] Between every two connecting plates 5, the inner sidewall of the first contact plate 1 is connected with a first heat dissipation strip 6 extending upward to the upper end of the first contact plate 1, and the inner sidewall of the second contact plate 3 is connected with multiple second heat dissipation strips 7 extending upward to the upper end of the second contact plate 3.
[0032] In the present application, between every two connecting plates 5, the inner sidewall of the first contact plate 1 is connected with a first heat dissipation strip 6 extending upward to the upper end of the first contact plate 1, and the inner sidewall of the second contact plate 3 is connected with multiple second heat dissipation strips 7 extending upward to the upper end of the second contact plate 3, which increases the anti-bending ability of the heat sink and prevents the heat sink from being broken during transportation or installation.
[0033] The following is combined with the appendix of this specificationFigures 1 to 2 , a preferred embodiment of the present disclosure will be further elaborated in detail.
[0034] According to some embodiments, as Figure 1 shown, multiple connecting plates 5 are arranged at equal intervals.
[0035] Specifically, in some embodiments, six connecting plates 5 are provided, and the six connecting plates 5 are arranged at equal intervals to increase the connection stability between the first contact plate 1 and the second contact plate 3.
[0036] According to some embodiments, as Figure 1 shown, the first contact plate 1 is provided with a plurality of first heat dissipation openings 8, and the second contact plate 3 is provided with a plurality of second heat dissipation openings 9.
[0037] Furthermore, as Figure 1 shown, one side wall of each of the plurality of first heat dissipation openings 8 is connected to a first heat dissipation fin 10 extending upward from the upper end of the first contact plate 1, and one side wall of each of the plurality of second heat dissipation openings 9 is connected to a second heat dissipation fin 11 extending upward from the upper end of the second contact plate 3.
[0038] Among them, the first heat dissipation fin 10 and the second heat dissipation fin 11 are used to increase the heat dissipation area. In some embodiments, the first heat dissipation fin 10 is perpendicular to the first contact plate 1, the second heat dissipation fin 11 is perpendicular to the second contact plate 3, and the first contact plate 1 and the second contact plate 3 are respectively on the outer side and the inner side of the same plane.
[0039] According to some embodiments, as Figure 1 shown, both the first contact plate 1 and the second contact plate 3 are annular, the outer diameter of the second contact plate 3 is smaller than the inner diameter of the first contact plate 1, and both the first heat dissipation strip 6 and the second heat dissipation strip 7 are arc-shaped.
[0040] Among them, the shapes of the first contact plate 1 and the second contact plate 3 can be designed according to the shape of the actual object to be cooled, so as to facilitate fitting the object to be cooled. In some embodiments, the first heat dissipation strip 6 is perpendicular to the first contact plate 1, and the second heat dissipation strip 7 is perpendicular to the second contact plate 3.
[0041] In some embodiments, the heat sink is made of aluminum. In other embodiments, the heat sink can also be made of heat dissipation materials such as copper or silica gel, which is not limited in this application.
[0042] According to some embodiments, as Figure 1 shown, the area of the first heat dissipation fin 10 is the same as that of the first heat dissipation opening 8, and the area of the second heat dissipation fin 11 is the same as that of the second heat dissipation opening 9;
[0043] The heat sink is made by stamping process, the first heat dissipation fin 10 is obtained by stamping through the first heat dissipation opening 8, and the second heat dissipation fin 11 is obtained by stamping through the second heat dissipation opening 9.
[0044] Specifically, in some embodiments, the heat sink is made by stamping a circular aluminum plate. The first heat dissipation fins 10 are obtained by stamping through the first heat dissipation openings 8, the second heat dissipation fins 11 are obtained by stamping through the second heat dissipation openings 9, and the first heat dissipation strips 6 and the second heat dissipation strips 7 are also obtained by stamping. This application not only increases the heat dissipation area of the heat sink, but also increases the heat dissipation openings. At the same time, the stamped heat dissipation fins and heat dissipation strips can be recycled, saving materials.
[0045] According to some embodiments, as Figure 2 shown, this application provides a lamp, which includes a heat sink on the lamp and a lamp housing 12. The lamp housing 12 and the heat sink are connected by rivets.
[0046] Furthermore, as Figure 2 shown, a plurality of screw grooves 13 are provided on the lamp housing 12. As Figures 1 to 2 shown, screw groove through openings 14 corresponding to the screw grooves 13 are provided on both the first contact plate 1 and the second contact plate 3.
[0047] Among them, the size, shape and position of the screw groove through openings 14 can be set according to actual needs. In some embodiments, the screw grooves 13 on the lamp housing 12 protrude outwards, so screw groove through openings 14 corresponding to the screw grooves 13 are provided on both the first contact plate 1 and the second contact plate 3, so that when installing the heat sink, the heat sink and the lamp housing 12 can be closely combined, enabling the heat generated by the lamp to be better dissipated through the heat sink.
[0048] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.
[0049] Although the present disclosure has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present disclosure can be embodied in many forms without departing from the spirit or essence of the present application, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. A heat sink, characterized in that: The heat sink comprises: A first contact plate, wherein a first opening is formed in the middle of the first contact plate; A second contact plate, wherein a second opening is formed in the middle of the second contact plate, the second contact plate is arranged in the first opening, and the lower surfaces of the first contact plate and the second contact plate are used to contact the heat dissipation body; A plurality of connecting plates, one end of each of the connecting plates being respectively connected to the inner side wall of the first contact plate, and the other end of each of the connecting plates being respectively connected to the outer side wall of the second contact plate; The inner side wall of the first contact plate between every two connecting plates is connected with a first heat dissipation strip extending toward the upper end of the first contact plate, and the inner side wall of the second contact plate is connected with a plurality of second heat dissipation strips extending toward the upper end of the second contact plate.
2. The heat sink according to claim 1, characterized in that: The plurality of connecting plates are arranged at equal intervals.
3. The heat sink according to claim 1, characterized in that: The first contact plate is provided with a plurality of first heat dissipation openings, and the second contact plate is provided with a plurality of second heat dissipation openings.
4. The heat sink according to claim 3, characterized in that: One side wall of the plurality of first heat dissipation openings is connected to a first heat dissipation fin extending toward the upper end of the first contact plate, and one side wall of the plurality of second heat dissipation openings is connected to a second heat dissipation fin extending toward the upper end of the second contact plate.
5. The heat sink according to claim 1, characterized in that: The first contact plate and the second contact plate are both annular, the outer diameter of the second contact plate is smaller than the inner diameter of the first contact plate, and the first heat dissipation bar and the second heat dissipation bar are both arc-shaped.
6. The heat sink according to claim 1, characterized in that: The heat sink is made of aluminum.
7. The heat sink according to claim 4, characterized in that: The first heat dissipation fin has the same area as the first heat dissipation opening, and the second heat dissipation fin has the same area as the second heat dissipation opening; The heat sink is made by a stamping process, the first heat sink fin is obtained by stamping through the first heat sink opening, and the second heat sink fin is obtained by stamping through the second heat sink opening.
8. A lamp, characterized in that: The lamp comprises the heat sink according to any one of claims 1 to 7 and a lamp housing, wherein the lamp housing and the heat sink are connected by rivets.
9. The lamp according to claim 8, characterized in that: The lamp housing is provided with a plurality of screw slots, and the first contact plate and the second contact plate are both provided with screw slot openings corresponding to the screw slots.