Illuminating lamp
By using heat conductors in lighting fixtures, the problem of increasing quality and cost caused by increasing the heat dissipation effect by increasing the specific accumulation of the headlights in the prior art is solved, and efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202420191514.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-26
AI Technical Summary
Existing lighting fixtures generate a large amount of heat during use, and heat dissipation is needed to avoid heat accumulation affecting service life. However, the prior art improves heat dissipation effect by increasing the specific accumulation of the headlights, resulting in increased quality and cost.
A heat conduction sheet is used, and the heat conduction sheet is laid on the side wall of the mounting hole of the lamp body in an annular shape. The thermal conductivity is greater than the thermal conductivity of the lamp body, so that heat conduction is carried out through the high thermal conductivity of the heat conduction sheet and heat dissipation is promoted.
It effectively improves the heat dissipation effect of lighting fixtures, avoids the problems of increasing volume, increasing mass and increasing cost, and ensures efficient heat dissipation of lamps.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrical appliances, and in particular to a lighting fixture. Background Art
[0002] Most lighting fixtures use LED lamps as light sources, which are energy-saving, environmentally friendly, and have a long service life, so they are used in a wider range of scenarios. However, they generate a lot of heat during use, which must be dissipated to avoid heat accumulation and shortening the service life.
[0003] The prior art often increases the volume of the lighting fixture to improve the heat dissipation effect, but the increase in volume will inevitably lead to problems of increased mass and increased costs. Utility Model Content
[0004] The utility model provides a lighting fixture, which can improve the heat dissipation effect through a heat conductive sheet, thereby avoiding the problems of increased volume, heavier weight and higher cost of the lamp body.
[0005] The embodiments of the present invention can be implemented as follows:
[0006] The embodiment of the utility model provides a lighting fixture, which includes:
[0007] Lamp body and heat conducting sheet;
[0008] Wherein, the lamp body is provided with a mounting hole, the heat conductive sheet is laid in a ring shape on the side wall of the mounting hole, and the thermal conductivity of the heat conductive sheet is greater than the thermal conductivity of the lamp body.
[0009] Optionally, the lamp body is provided with a first positioning portion, the heat conducting plate comprises a first heat conducting portion and a first positioning portion connected to each other, the first heat conducting portion is laid in a ring shape on the side wall of the mounting hole, and the second positioning portion cooperates with the first positioning portion.
[0010] Optionally, a step surface is formed on the lamp body, and the heat conducting sheet further includes a second heat conducting portion, which is connected to the first heat conducting portion and laid on the step surface.
[0011] Optionally, the second heat conducting portion includes at least two raised sections, the at least two raised sections are both connected to the first heat conducting portion, the at least two raised sections are both laid on the step surface, and the at least two raised sections are arranged in a ring shape with the mounting hole as the center.
[0012] Optionally, a second gap is formed on one of the raised segments, and the second gap corresponds to the first positioning portion.
[0013] Optionally, the raised section is sawtooth-shaped.
[0014] Optionally, an end surface area of the second heat conducting portion is smaller than or equal to an area of the step surface.
[0015] Optionally, a first gap is formed on the first heat conducting portion, and the first gap corresponds to the first positioning portion.
[0016] Optionally, the first positioning portion is a groove, and the second positioning portion is a convex piece, and the convex piece cooperates with the groove.
[0017] Optionally, the thickness of the first heat conducting portion and the second positioning portion are both not less than 0.01 mm.
[0018] The beneficial effects of the lighting fixture of the present utility model embodiment include, for example:
[0019] The lighting fixture comprises a lamp body and a heat conducting sheet; wherein the lamp body is provided with a mounting hole, the heat conducting sheet is laid in a ring shape on the side wall of the mounting hole, and the heat conductivity of the heat conducting sheet is greater than the heat conductivity of the lamp body. During operation, the advantage of the better heat conductivity of the heat conducting sheet can be utilized to facilitate heat conduction, thereby promoting heat dissipation to improve the heat dissipation effect, thereby avoiding the problems of increased volume, increased mass and increased cost of the lamp body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 The structure of the lighting fixture provided in the embodiment of the utility model is schematically shown in FIG. Figure 1 ;
[0022] Figure 2 It is a schematic diagram of the structure of the lamp body provided in the embodiment of the utility model;
[0023] Figure 3 It is a schematic structural diagram of the heat conducting sheet provided in the embodiment of the utility model in an assembled state;
[0024] Figure 4 It is a schematic structural diagram of the heat conducting sheet provided in an embodiment of the utility model in an unfolded state;
[0025] Figure 5 The structure of the lighting fixture provided in the embodiment of the utility model is schematically shown in FIG. Figure 2 ;
[0026] Figure 6The structure of the lighting fixture provided in the embodiment of the utility model is schematically shown in FIG. Figure 3 .
[0027] Icon: 100-lighting fixture; 110-lamp body; 111-mounting hole; 112-first positioning portion; 113-step surface; 114-first clamping portion; 115-second clamping portion; 120-heat conductive sheet; 121-first heat conductive portion; 1211-first gap; 122-second positioning portion; 123-second heat conductive portion; 1231-raised section; 1232-tooth tip; 1233-tooth bottom; 1234-second gap. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0031] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.
[0032] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.
[0033] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0034] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.
[0036] As mentioned in the background technology, most lighting fixtures use LED lamps as light sources, which have the advantages of energy saving, environmental protection, and long service life, so their application scenarios are more extensive. However, a large amount of heat will be generated during its use, and it is necessary to dissipate heat to avoid heat accumulation and affect the service life. The existing technology often increases the volume of lighting fixtures to improve the heat dissipation effect, but the increase in volume will inevitably cause problems such as increased quality and increased costs.
[0037] Please refer to Figure 1-Figure 6 The lighting fixture 100 provided in the embodiment of the present utility model can solve the above-mentioned problem, which will be described in detail below.
[0038] refer to Figure 1-Figure 3 The lighting fixture 100 includes a lamp body 110 and a heat conductive sheet 120 ; wherein the lamp body 110 is provided with a mounting hole 111 , and the heat conductive sheet 120 is laid in a ring shape on the side wall of the mounting hole 111 , and the thermal conductivity of the heat conductive sheet 120 is greater than the thermal conductivity of the lamp body 110 .
[0039] During operation, the heat conductive sheet 120 can be used to facilitate heat conduction due to its better thermal conductivity, thereby promoting heat dissipation to improve the heat dissipation effect, thereby avoiding the problems of increased volume, increased weight and increased cost of the lamp body 110.
[0040] It is worth noting that thermal conductivity, also known as thermal conductivity coefficient or thermal conductivity, is a physical quantity that indicates the thermal conductivity of a material, and the thermal conductivity of a material varies with composition, physical structure, material state, temperature, pressure, etc. The thermal conductivity of the material of the thermal conductive sheet 120 is greater, which can be understood as the thermal conductivity of the thermal conductive sheet 120 is better than that of the material of the lamp body 110.
[0041] refer to Figure 2 and Figure 3 The lamp body 110 is provided with a first positioning portion 112 , and the heat conducting plate 120 includes a first heat conducting portion 121 and a first positioning portion 112 connected to each other. The first heat conducting portion 121 is laid in a ring shape on the side wall of the mounting hole 111 , and the second positioning portion 122 cooperates with the first positioning portion 112 .
[0042] During operation, the heat conducting sheet 120 can be positioned by the cooperation between the second positioning portion 122 and the first positioning portion 112 , and the first heat conducting portion 121 is laid on the mounting hole 111 to facilitate heat conduction and thus promote heat dissipation.
[0043] It is worth noting that the thermal conductivity of the first heat-conducting part 121 and the second positioning part 122 should be greater than the thermal conductivity of the lamp body 110; the first heat-conducting part 121 and the second positioning part 122 can be made of the same material or different materials. In order to improve manufacturing convenience, the two are usually made of the same material.
[0044] refer to Figure 2 In this embodiment, the lamp body 110 is a hollow cylindrical structure, and the mounting hole 111 is set through the cylindrical extension direction of the lamp body 110. In addition, the lamp body 110 and the mounting hole 111 are both conical, and the end surface size of one end is significantly larger than the end surface size of the other end.
[0045] In addition, the lamp body 110 is provided with a first clamping portion 114 at the end with a smaller end face size, and the first clamping portion 114 is used to connect the lamp holder of the lighting fixture 100; the lamp body 110 is provided with a second clamping portion 115 at the end with a larger end face size, and the second clamping portion 115 is used to connect the lampshade of the lighting fixture 100.
[0046] Specifically, the first clamping portion 114 is a slot structure, and a buckle structure corresponding to the slot structure is provided on the lamp cap, and the buckle structure and the slot structure are engaged in a snap-fit manner, so that the lamp cap can be fixed to one end of the lamp body 110. Specifically, the second clamping portion 115 is at least two spaced-apart block structures, and a buckle structure that cooperates with the block structure is provided on the lampshade, and the buckle structure and the block structure are engaged in a snap-fit manner. In addition, in addition to the snap-fit manner, internal threads can be provided at both ends of the lamp body 110, and external threads can be provided at the ends of the lamp cap and the lampshade, respectively, so that the lamp cap and the lampshade can be fixed to both ends of the lamp body 110 through threaded connection.
[0047] In this embodiment, the first positioning portion 112 is a groove, and the second positioning portion 122 is a convex piece, and the convex piece cooperates with the groove; the first positioning portion 112 can also be a convex structure, and the second positioning portion 122 can be a folded piece extending toward the inner side of the mounting hole 111, and the folded piece is against the convex structure, thereby achieving a positioning effect. In this embodiment, the groove is in the shape of a long strip, and the extension direction of the long strip of the groove is consistent with the extension direction of the mounting hole 111 and the lamp body 110. The convex piece is also in the shape of a long strip, and the length of the long strip of the convex piece does not exceed the length of the long strip of the groove, that is, the groove and the convex piece are both in an I-shaped structure; of course, in other embodiments of the utility model, the groove and the convex piece can also be a discontinuous multiple short strip structure or a curved structure, which can be specifically an L-shaped, S-shaped, C-shaped, M-shaped structure, etc., and its specific structural form is not limited.
[0048] refer to Figure 2 and Figure 3 A step surface 113 is formed on the lamp body 110 , and the heat conducting sheet 120 further includes a second heat conducting portion 123 , which is connected to the first heat conducting portion 121 and laid on the step surface 113 .
[0049] In this embodiment, the step surface 113 is annular in structure and is located at the end of the mounting hole 111. The step surface 113 is used to place the light source board of the lighting fixture 100, which is used to emit light and acts as a light source. The light source board generates a lot of heat while emitting light; the second heat conducting portion 123 is laid on the step surface 113 and contacts the light source board, so that part of the heat generated by the light source board can be directly conducted through the second heat conducting portion 123.
[0050] It is worth noting that the thermal conductivity of the second heat conducting part 123 should be greater than that of the lamp body 110 . Meanwhile, in order to improve the manufacturing convenience of the heat conducting sheet 120 , the material of the second heat conducting part 123 can be consistent with that of the first heat conducting part 121 and the second positioning part 122 .
[0051] At the same time, in order to prevent the second heat conducting part 123 from wrinkling and affecting the heat conducting effect, the end surface area of the second heat conducting part 123 can be made smaller than or equal to the area of the step surface 113 , so that the second heat conducting part 123 can be fully stretched and laid on the step surface 113 .
[0052] In this embodiment, the heat conducting plate 120 (the first heat conducting part 121 , the second positioning part 122 and the second heat conducting part 123 ) can be specifically made of graphene or graphite sheet material, and its thickness should be no less than 0.01 mm to ensure good heat conduction effect during the operation of the light source board.
[0053] Specifically, the specific thickness of the heat conducting sheet 120 can be 0.01mm, 0.03mm, 0.05mm, 0.1mm, 0.2mm, etc., and the specific thickness is not limited. Of course, as the thickness of the heat conducting sheet 120 increases, its heat conducting effect becomes better, and its material cost becomes higher. From the perspective of ensuring the heat conducting effect and balancing the material cost, the thickness of the heat conducting sheet 120 is preferably 0.01mm.
[0054] refer to Figure 3 and Figure 4 The second heat conducting part 123 includes at least two raised sections 1231, and the at least two raised sections 1231 are connected to the first heat conducting part 121, and the at least two raised sections 1231 are laid on the step surface 113. Moreover, the at least two raised sections 1231 are arranged in a ring shape with the mounting hole 111 as the center.
[0055] In this embodiment, the number of the raised sections 1231 is six, and the six raised sections 1231 are arranged in a ring shape with the mounting hole 111 as the center. Of course, in other embodiments of the utility model, the number of the raised sections 1231 can also be two, three, five, eight, etc., and the specific number is not limited.
[0056] Meanwhile, the raised section 1231 in this embodiment is sawtooth-shaped, which has the advantage of being easy to shape. The raised section 1231 has a tooth tip 1232 and a tooth bottom 1233, the tooth bottom 1233 of the raised section 1231 contacts the first heat conducting section, and the tooth tip 1232 protrudes from the tooth bottom 1233 and is relatively far away from the first heat conducting section.
[0057] Of course, in other embodiments of the present invention, the raised section 1231 may also be in other shapes such as wavy, long strip, etc., and the specific shape is not limited.
[0058] In addition, in order to avoid the first positioning portion 112 , a first gap 1211 is formed on the first heat conducting portion 121 , and the first gap 1211 corresponds to the first positioning portion 112 ; a second gap 1234 is formed on one of the raised sections 1231 , and the second gap 1234 corresponds to the first positioning portion 112 .
[0059] Specifically, during the assembly process, the first heat conducting part 121 can be laid along the inner wall of the mounting hole 111. When the number of the second positioning part 122 is one, the second positioning part 122 is matched with the first positioning part 112, and then one of the ends of the first heat conducting part 121 connected with the second positioning part 122 is opened and laid in a ring shape. When the number of the second positioning parts 122 is two, any second positioning part 122 is first matched with the first positioning part 112, and then the end of the first heat conducting part 121 connected with the second positioning part 122 that has been matched with the first positioning part 112 is opened and laid in a ring shape, and then the second positioning part 122 connected to the other end of the first heat conducting part 121 is matched with the first positioning part 112. After the laying is completed, the two ends of the first heat conducting part 121 are spaced apart, and the first gap 1211 is located between the two ends of the first heat conducting part 121.
[0060] It is worth noting that, in order to facilitate processing and forming, the heat conducting sheet 120 can be made into a rectangular sheet structure as a whole. First, the second heat conducting portion 123 with a specific shape is formed, specifically, by shearing, and then a first bending line is formed between the first heat conducting portion 121 and the second heat conducting portion 123, so that it is convenient to bend along the first bending line so that the second heat conducting portion 123 rotates relative to the first heat conducting portion 121. Then, the first heat conducting portion 121 and the second positioning portion 122 are separated, so that a second bending line is formed at the connection between the two, so that it is convenient to fold along the second bending line so that the second positioning portion 122 rotates relative to the first heat conducting portion 121.
[0061] When the heat conducting sheet 120 is placed in the lamp body 110, it is first bent along the second bending line, and the bent second positioning portion 122 is placed in the first positioning portion 112 to position the heat conducting sheet 120; then the first heat conducting portion 121 is laid along the side wall of the mounting hole 111, and bubbles are avoided between the first heat conducting portion 121 and the side wall of the mounting hole 111 during laying, so as to ensure full contact between the two; and it is bent along the first bending line, and the bent second heat conducting portion 123 is laid on the step surface 113, and bubbles are avoided between the second heat conducting portion 123 and the step surface 113 during laying, so as to ensure full contact between the two.
[0062] It is worth noting that the lighting fixture 100 also includes a light source board, a lamp holder and a lampshade. The light source board is installed on the step surface 113. The lamp holder and the lampshade are respectively connected to the two ends of the lamp body 110. The lamp holder, the lamp body 110 and the lampshade together form a relatively closed chamber structure for accommodating the light source board and other electrical components, and at the same time play a shielding and protective role to prevent the light source board from being easily interfered by external impurities.
[0063] refer to Figure 5The lamp body 110 is in the shape of a trumpet with one end being small and the other end being large, and its outer side wall and inner side wall are both streamlined. There are multiple heat conductive sheets 120, and the multiple heat conductive sheets 120 are laid on the side wall of the mounting hole 111 and are arranged in a ring-shaped interval. In addition, the multiple heat conductive sheets 120 can be symmetrically arranged about the central axis of the mounting hole 111 to uniformly conduct and dissipate the heat of the lamp body 110. When one of the heat conductive sheets 120 is damaged, only the damaged heat conductive sheet 120 can be replaced separately, without replacing all the heat conductive sheets 120, thereby reducing the replacement cost of the heat conductive sheets 120.
[0064] refer to Figure 6 The lamp body 110 is also trumpet-shaped with one end small and the other end large, and its outer and inner walls are streamlined. There is one heat-conducting sheet 120, and the end of the heat-conducting sheet 120 close to the lamp body 110 with a small inner diameter is bifurcated, and the bifurcated ends are arranged in a ring-shaped interval, which can also play a role in uniformly conducting and dissipating the heat of the lamp body 110. When the heat-conducting sheet 120 is installed or disassembled, the efficiency of disassembly and assembly of the heat-conducting sheet 120 can be improved through the integral structure, and because of the bifurcated structure, the heat-conducting sheet 120 does not cover the entire wall surface of the mounting hole 111. On the premise of ensuring a uniform heat dissipation effect, the material consumption of the heat-conducting sheet 120 can be reduced, thereby reducing the manufacturing cost.
[0065] In summary, the lighting fixture 100 provided in the embodiment of the present invention has at least the following advantages:
[0066] (1) The lighting fixture 100 can improve the heat dissipation effect through the heat conductive sheet 120, thereby avoiding the problems of increased volume, increased mass and increased cost.
[0067] (2) The lighting fixture 100 can fix the heat conductive sheet 120 on the lamp body 110 through the cooperation of the first positioning portion 112 and the second positioning portion 122, so that the relative positions of the heat conductive sheet 120 and the lamp body 110 are stable during operation, thereby preventing the two from being easily separated.
[0068] (3) The lighting fixture 100 is provided with a second heat-conducting portion 123, which is arranged on the step surface 113 and is used to contact the light source board that generates heat, so that the heat can be directly transferred from the second heat-conducting portion 123 to the first heat-conducting portion 121, thereby improving the heat conduction efficiency, thereby improving the heat dissipation effect of the entire lighting fixture 100.
[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A lighting fixture, characterized in that: include: A lamp body (110) and a heat conducting sheet (120); The lamp body (110) is provided with a mounting hole (111), the heat conductive sheet (120) is laid in a ring shape on the side wall of the mounting hole (111), and the heat conductivity of the heat conductive sheet (120) is greater than the heat conductivity of the lamp body (110).
2. The lighting fixture according to claim 1, characterized in that: The lamp body (110) is provided with a first positioning portion (112); the heat conducting plate (120) comprises a first heat conducting portion (121) and a second positioning portion (122) connected to each other; the first heat conducting portion (121) is laid in a ring shape on the side wall of the mounting hole (111); and the second positioning portion (122) cooperates with the first positioning portion (112).
3. The lighting fixture according to claim 2, characterized in that: A stepped surface (113) is formed on the lamp body (110), and the heat conducting plate (120) further comprises a second heat conducting portion (123), wherein the second heat conducting portion (123) is connected to the first heat conducting portion (121) and is laid on the stepped surface (113).
4. The lighting fixture according to claim 3, characterized in that: The second heat conducting portion (123) comprises at least two raised sections (1231), the at least two raised sections (1231) are both connected to the first heat conducting portion (121), the at least two raised sections (1231) are both laid on the step surface (113), and the at least two raised sections (1231) are arranged in a ring shape with the mounting hole (111) as the center.
5. The lighting fixture according to claim 4, characterized in that: A second gap (1234) is formed on one of the raised sections (1231), and the second gap (1234) corresponds to the first positioning portion (112).
6. The lighting fixture according to claim 4, characterized in that: The raised section (1231) is sawtooth-shaped.
7. The lighting fixture according to claim 3, characterized in that: The end surface area of the second heat conducting portion (123) is smaller than or equal to the area of the step surface (113).
8. The lighting fixture according to claim 2, characterized in that: A first gap (1211) is formed on the first heat conducting portion (121), and the first gap (1211) corresponds to the first positioning portion (112).
9. The lighting fixture according to any one of claims 2 to 8, characterized in that: The first positioning portion (112) is a groove, and the second positioning portion (122) is a convex piece, and the convex piece cooperates with the groove.
10. The lighting fixture according to any one of claims 1 to 8, characterized in that: The thickness of the heat conducting sheet (120) is not less than 0.01 mm.