CN213237008U - Heat dissipation lamp shell and LED lighting lamp with same - Google Patents
Heat dissipation lamp shell and LED lighting lamp with same Download PDFInfo
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- CN213237008U CN213237008U CN202021708885.8U CN202021708885U CN213237008U CN 213237008 U CN213237008 U CN 213237008U CN 202021708885 U CN202021708885 U CN 202021708885U CN 213237008 U CN213237008 U CN 213237008U
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Abstract
The utility model belongs to the technical field of lighting apparatus, especially, relate to a heat dissipation lamp body and have its LED illumination lamps and lanterns. The heat dissipation lamp shell is provided with a lamp holder installation port and a light outlet port, the heat dissipation lamp shell comprises a metal inner shell and a plastic outer shell, the plastic outer shell is wrapped outside the metal inner shell, a plurality of support ribs are arranged on the inner wall of the plastic outer shell and close to the light outlet port, the plurality of support ribs are abutted to the outer wall of the metal inner shell, the plurality of support ribs surround the metal inner shell at intervals along the circumferential direction, and the wall thickness of the plastic outer shell is uniform at all positions. Use the technical scheme of the utility model can solve present heat dissipation lamp body and have the problem that the shrink trace is regional in the design defect who observes easily in appearance.
Description
Technical Field
The utility model belongs to the technical field of lighting apparatus, especially, relate to a heat dissipation lamp body and have its LED illumination lamps and lanterns.
Background
At present, the application range of LED lighting lamps is wider and wider, and the LED lighting lamps are energy-saving lamps with better lighting effect. However, the LED lighting apparatus often generates heat during lighting. In order to provide better thermal performance for the LED lighting device, the heat dissipation lamp housing of the LED lighting device adopts an outer housing structure formed by over-molding (the processing process is plastic-coated aluminum or insert molding, i.e., an aluminum inner housing is coated by an injection-molded plastic outer layer, or the aluminum inner housing is embedded into the plastic outer layer after the plastic outer layer is separately injection-molded). As shown in fig. 1 and 2, the conventional heat-dissipating lamp housing includes a metal inner layer 1 and a plastic outer layer 2, wherein the metal inner layer 1 is covered by the plastic outer layer 2.
The radiating lamp shell is manufactured by adopting an injection molding method, firstly, a cup-shaped metal inner layer 1 is prepared, then, the metal inner layer 1 is placed in a cavity of a lower die of a die, an upper die is covered, and an injection molding space for injection molding of a plastic shell 2 is formed among the inner wall of the cavity of the lower die, the outer wall of the metal inner layer 1 and the upper die. And injecting the molten plastic liquid into the injection molding space, cooling and solidifying the molten plastic liquid to form the plastic shell 2, and demolding to obtain the heat dissipation lamp shell.
In the heat-dissipating lamp envelope, as shown in fig. 1, a portion of the plastic outer envelope 2 corresponding to an end portion of the metal inner envelope 1 near the upper mold forms a shrink mark region 3. The reason for this is that the thickness of the plastic in the shrinkage mark region 3 is significantly thicker than that of the other parts of the plastic envelope 2, so that the cooling and solidification of the molten plastic liquid in the shrinkage mark region 3 are delayed from those of the other parts, and therefore, thermal stress exists in the shrinkage mark region 3 at the end of the cooling and solidification, so that the molded plastic envelope 2 forms the shrinkage mark region 3 which is easily observed from the appearance, and the overall aesthetic appearance of the heat-dissipating lamp envelope is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat dissipation lamp body and have its LED illumination lamps and lanterns, aim at solving present heat dissipation lamp body and have the problem that the shrink trace is regional in appearance and observe easily.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a heat dissipation lamp body, has lamp holder installation port and light-emitting port, and the heat dissipation lamp body includes metal inner shell and plastic casing, and the cladding of plastic casing is equipped with a plurality of brace rods outside the metal inner shell on the plastic casing inner wall, and a plurality of brace rods are close to the light-emitting port, and a plurality of brace rods butt in metal inner shell outer wall, a plurality of brace rods are along circumference interval ground around the metal inner shell to the wall thickness is even everywhere on the plastic casing.
Optionally, the thickness H of each support rib1Wall thickness H less than that of the plastic housing2。
Optionally, the thickness H of each support rib1Is in the range of 0.3H2≤H1≤0.9H2。
Optionally, the plurality of support ribs are arranged evenly spaced.
Optionally, the metal inner shell is made of a metal aluminum material.
Optionally, the end of the metal inner shell near the light outlet port is lower than the end of the plastic outer shell near the light outlet port.
Optionally, the edge of the inner wall of the end of the plastic shell close to the light outlet port is provided with a connecting structure for mounting the lampshade.
Optionally, the inner wall of the plastic outer shell near the lamp cap mounting port is provided with a mounting seat for mounting the driving assembly, and the mounting seat extends into the metal inner shell.
Optionally, the light outlet port is a circular port; or the light outlet port is a square port.
According to the utility model discloses an on the other hand provides a LED illumination lamps and lanterns. Specifically, this LED illumination lamps and lanterns includes the lamp shade, the lamp holder, drive assembly, LED light source subassembly and heat dissipation lamp body, the lamp shade is connected in light-emitting port, the lamp holder is connected in lamp holder installation port, lamp shade, lamp holder and heat dissipation lamp body three form installation space, drive assembly and LED light source subassembly are all installed in installation space, drive assembly and LED light source subassembly electric connection, LED light source subassembly is close to light-emitting port, drive assembly is located between LED light source subassembly and the lamp holder, wherein, the heat dissipation lamp body is aforementioned heat dissipation lamp body.
The utility model discloses following beneficial effect has at least:
the utility model discloses a position that the heat dissipation lamp body is close to the light-emitting port at plastic casing sets up a plurality of brace rods and metal inner shell butt and supports, with this replace the thick and solid plastic layer at this position in the current heat dissipation lamp body, and the utility model discloses a plastic casing of heat dissipation lamp body wall thickness everywhere is even, so make the utility model relates to a heat dissipation lamp body can evenly shrink when the cooling solidification in the manufacturing process to the cooling balance effect through a plurality of brace rods that set up avoids appearing the thermal stress influence, thereby produces the regional design defect of shrinkage mark when having eliminated the cooling solidification, makes the smooth even, more pleasing to the eye of heat dissipation lamp body outward appearance glazing, can guarantee the good thermal behavior of heat dissipation lamp body simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a cross-sectional view of a conventional heat-dissipating lamp envelope;
fig. 2 is a schematic view of an external structure of a conventional heat-dissipating lamp housing;
fig. 3 is a schematic perspective view of a first viewing angle of the heat dissipation lamp housing according to the embodiment of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
fig. 5 is a schematic perspective view of a second viewing angle of the heat dissipation lamp housing according to the embodiment of the present invention;
fig. 6 is a front view of a heat-dissipating lamp housing according to an embodiment of the present invention;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;
FIG. 9 is an enlarged view at D of FIG. 8;
FIG. 10 is a cross-sectional view taken along line C-C of FIG. 7;
fig. 11 is an exploded view of a heat-dissipating lamp housing according to an embodiment of the present invention;
fig. 12 is a schematic perspective view of an LED lighting fixture according to an embodiment of the present invention;
fig. 13 is an exploded view of an LED lighting fixture according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. a metal inner shell; 101. a lamp cap mounting port; 102. an optical outlet port; 20. a plastic housing; 21. a connecting structure; 22. a mounting seat; 30. supporting ribs; 100. a heat-dissipating lamp housing; 201. a lamp shade; 202. a lamp cap; 203. a drive assembly; 204. an LED light source assembly; 205. and (7) installing a ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 3 to 11, an embodiment of the present invention provides a heat dissipation lamp housing 100, and an LED lighting fixture is assembled by using the heat dissipation lamp housing 100, so that the overall appearance of the LED lighting fixture is smooth and uniform, and is more beautiful. Specifically, the heat dissipation lamp housing 100 has a lamp holder mounting port 101 and a light emitting port 102, the heat dissipation lamp housing 100 includes a metal inner housing 10 and a plastic outer housing 20, the plastic outer housing 20 is wrapped outside the metal inner housing 10, a plurality of support ribs 30 are arranged on an inner wall of the plastic outer housing 20, the plurality of support ribs 30 are close to the light emitting port 102, the plurality of support ribs 30 abut against an outer wall of the metal inner housing 10, the plurality of support ribs 30 circumferentially surround the metal inner housing 10 at intervals, and the wall thickness of each part of the plastic outer housing 20 is uniform.
The utility model discloses a heat dissipation lamp body 100 sets up a plurality of brace rods 30 and the support of metal inner shell 10 butt near the position of light-emitting port 102 at plastic casing 20 to this replaces the thick and solid plastic layer in this position in current heat dissipation lamp body 100, and the utility model discloses a plastic casing 20 of heat dissipation lamp body 100 wall thickness is even everywhere, so makes the utility model discloses a heat dissipation lamp body 100 can evenly shrink when the cooling and solidification of manufacturing in-process to through the cooling balance effect of a plurality of brace rods 30 that set up, avoid appearing the thermal stress influence, thereby produce the regional design defect of shrinkage mark when having eliminated the cooling and solidification, make heat dissipation lamp body 100 smooth even, more pleasing to the eye on the outward appearance, can guarantee the good thermal behavior of heat dissipation lamp body 100 simultaneously.
In order to balance the cooling and heat dissipation of the plastic shell 20 during the cooling and solidification process and avoid the concentration of thermal stress, and to support the plastic shell 20 which is still relatively flexible during the cooling and solidification process, the thickness H of each support rib 30 is generally as shown in fig. 7 to 101Is smaller than the wall thickness H of the plastic housing 202. And, the thickness H of each support rib 301Is in the range of 0.3H2≤H1≤0.9H2As shown in fig. 7. In the present embodiment, the wall thickness H of the plastic housing 2021.0mm, the thickness H of the support rib 30 is taken10.3mm to 0.9mm, and the thickness H of the support rib 30 is preferably set to reduce the error range1Is 0.5 mm-0.9 mm.
As shown in fig. 7 and 11, the plurality of support ribs 30 are arranged evenly at intervals. The evenly spaced support ribs 30 can provide even support to all positions of the shell wall where the shrinkage mark area is to be generated during the cooling and solidification process of the plastic shell 20, thereby preventing the shell wall in the area from generating surface fold shrinkage marks and even collapsing defects.
In order to meet the thermal performance requirement of the LED lighting fixture during the lighting process and achieve sufficient heat dissipation, the metal inner shell 10 of the heat dissipation lamp housing 100 of the embodiment is made of a metal aluminum material or an aluminum alloy material. In addition, the metal inner shell 10 may be made of a metal material having excellent heat conductivity, such as copper or a copper alloy, iron or an iron alloy, or the like. The inner metal shell 10 of the present embodiment is preferably formed by stamping aluminum alloy, which has good thermal conductivity on one hand, and the inner metal shell 10 of aluminum alloy has light weight and high mechanical strength on the other hand.
As shown in fig. 8 and 9, the end of the metal inner housing 10 near the light outlet port 102 is lower than the end of the plastic outer housing 20 near the light outlet port 102, so that the edge of the plastic outer housing 20 higher than the metal inner housing 10 is used to fit with the lamp housing 201. In the present embodiment, as shown in fig. 8 to 11, the edge of the inner wall of the end of the plastic housing 20 close to the light-emitting port 102 is provided with a connecting structure 21 for installing the lamp cover 201, and correspondingly, a matching structure (not shown) matching with the connecting structure 21 is provided on the lamp cover 201, and after the light-emitting port 102 is butted with the port of the lamp cover 201, the connecting structure 21 and the matching structure are butted together to complete the connection. Specifically, the light exit port 102 is a circular port; alternatively, the light exit port 102 is a square port. When the port of light-emitting port 102 and lamp shade 201 is circular port, connection structure 21 can be designed for a plurality of buckle sand grips along light-emitting port 102 circumference evenly distributed, and the cooperation structure then designs on the outer wall of lamp shade 201, and in the assembling process, the cooperation structure passes from the interval between two adjacent buckle sand grips, thereby makes cooperation structure and the mutual interlock backstop of buckle sand grip rotatory with lamp shade 201, and lamp shade 201 just finishes the installation. When the light-emitting port 102 and the lamp cover 201 are both square ports, the connecting structure 21 is designed to be an annular ring of protrusion, the matching structure is designed to be an independent buckle hook of the lamp cover 201, in the assembling process, the matching structure directly avoids extrusion of the annular protrusion to generate elastic deformation, after the annular protrusion is crossed, the buckle hook recovers under the action of elastic force to buckle the annular protrusion, so that the lamp cover 201 cannot be separated from the heat-dissipation lamp shell 100, and the assembly is completed. In addition, the light-emitting port 102 and the port of the lamp cover can be connected and fixed by adopting a screw locking mode after being butted.
As shown in fig. 7 and 8, the inner wall of the plastic outer shell 20 near the lamp head mounting port 101 is provided with a mounting seat 22 for mounting the driving assembly 203, and the mounting seat 22 extends into the metal inner shell 10. The mounting seat 22 is integrally injection molded with the plastic housing 20. After the driving assembly 203 is assembled on the mounting seat 22, the driving assembly 203 is surrounded by the metal inner shell 10, heat generated by the driving assembly 203 during operation can be transferred to the metal inner shell 10 through an air medium, and then the metal inner shell 10 is transferred to the plastic outer shell 20 and continues to be transferred to the air for cooling and heat dissipation.
According to another aspect of the present invention, there is provided an LED lighting fixture, as shown in fig. 12 and 13, which is assembled by using the heat dissipation lamp housing 100. Wherein, as shown in fig. 13, the LED lighting fixture includes a lampshade 201, a lamp cap 202, a driving assembly 203, an LED light source assembly 204, and a heat dissipation lamp housing 100, and is assembled into the LED lighting fixture of the present invention. The lampshade 201 is connected to the light outlet port 102, the installation ring 205 seals and prevents light leakage between the lampshade 201 and the light outlet port 102, and the installation ring 205 can be a colored installation ring, so that the appearance and the appreciation of the LED lighting lamp are enriched. The base 202 is connected to the base mounting port 101, and connection wires of the driving unit 203 are extended from the base mounting port 101 of the heat-dissipating lamp housing 100 to connect base terminals (not shown). The lampshade 201, the lamp cap 202 and the heat dissipation lamp housing 100 form an installation space, the driving assembly 203 and the LED light source assembly 204 are both installed in the installation space (the driving assembly 203 corresponds to the metal inner shell 10, and the LED light source assembly 204 corresponds to the lampshade 201), the driving assembly 203 is electrically connected with the LED light source assembly 204, the LED light source assembly 204 is close to the light outlet port 102, and the driving assembly 203 is located between the LED light source assembly 204 and the lamp cap 202.
Use the utility model discloses a LED illumination lamps and lanterns are assembled into to heat dissipation lamp body 100, because the plastic casing 20 design that will cool down lamp body 100 is even for the wall thickness everywhere to through the cooling balance effect of a plurality of brace rods 30 that set up, avoid appearing the thermal stress influence, so make the utility model relates to a heat dissipation lamp body 100 can evenly shrink when cooling solidification in the manufacturing process, thereby produces the regional design defect of shrinkage mark when having eliminated the cooling solidification. The heat dissipation lamp housing 100 is assembled to form a part of the LED illumination lamp, so that the overall appearance of the LED illumination lamp is smoother, more uniform and more attractive, and meanwhile, good thermal performance of the heat dissipation lamp housing 100 in the working process of the LED illumination lamp can be guaranteed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a heat dissipation lamp body, heat dissipation lamp body has lamp holder installation port (101) and light-emitting port (102), heat dissipation lamp body includes metal inner shell (10) and plastic casing (20), plastic casing (20) cladding is in outside metal inner shell (10), its characterized in that: the inner wall of the plastic outer shell (20) is provided with a plurality of support ribs (30), the support ribs (30) are close to the light outlet port (102), the support ribs (30) abut against the outer wall of the metal inner shell (10), the support ribs (30) surround the metal inner shell (10) at intervals along the circumferential direction, and the wall thickness of the plastic outer shell (20) is uniform at all positions.
2. The heat dissipating lamp envelope of claim 1, wherein:
the thickness H of each support rib (30)1Is smaller than the wall thickness H of the plastic housing (20)2。
3. The heat dissipating lamp envelope of claim 2, wherein:
the thickness H of each support rib (30)1Is in the range of 0.3H2≤H1≤0.9H2。
4. A heat-dissipating lamp envelope according to any one of claims 1 to 3, wherein:
the plurality of support ribs (30) are arranged at regular intervals.
5. The heat dissipating lamp envelope of claim 1, wherein:
the metal inner shell (10) is made of metal aluminum.
6. The heat dissipating lamp envelope of claim 5, wherein:
the end of the metal inner shell (10) close to the light outlet port (102) is lower than the end of the plastic outer shell (20) close to the light outlet port (102).
7. The heat dissipating lamp envelope of claim 6, wherein:
the edge of the inner wall of the end part of the plastic shell (20) close to the light outlet port (102) is provided with a connecting structure (21) for installing a lampshade (201).
8. The heat dissipating lamp envelope of claim 1, wherein:
the inner wall of the plastic outer shell (20) close to the lamp cap mounting port (101) is provided with a mounting seat (22) used for mounting a driving assembly (203), and the mounting seat (22) extends into the metal inner shell (10).
9. The heat dissipating lamp envelope of claim 1, wherein:
the light outlet port (102) is a circular port; or the light outlet port (102) is a square port.
10. An LED illuminating lamp is characterized by comprising a lampshade (201), a lamp cap (202), a driving component (203), an LED light source component (204) and a heat-radiating lamp shell (100), the lampshade (201) is connected to the light outlet port (102), the lamp cap (202) is connected to the lamp cap mounting port (101), the lampshade (201), the lamp cap (202) and the heat dissipation lamp shell form an installation space, the driving assembly (203) and the LED light source assembly (204) are both arranged in the installation space, the driving component (203) is electrically connected with the LED light source component (204), the LED light source assembly (204) is close to the light outlet port (102), the driving assembly (203) is positioned between the LED light source assembly (204) and the lamp head (202), wherein the heat-dissipating lamp envelope (100) is according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021708885.8U CN213237008U (en) | 2020-08-14 | 2020-08-14 | Heat dissipation lamp shell and LED lighting lamp with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021708885.8U CN213237008U (en) | 2020-08-14 | 2020-08-14 | Heat dissipation lamp shell and LED lighting lamp with same |
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| CN213237008U true CN213237008U (en) | 2021-05-18 |
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| CN202021708885.8U Active CN213237008U (en) | 2020-08-14 | 2020-08-14 | Heat dissipation lamp shell and LED lighting lamp with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531503A (en) * | 2021-07-08 | 2021-10-22 | 中节能晶和科技有限公司 | LED lamp heat dissipation structure and manufacturing method thereof |
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2020
- 2020-08-14 CN CN202021708885.8U patent/CN213237008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531503A (en) * | 2021-07-08 | 2021-10-22 | 中节能晶和科技有限公司 | LED lamp heat dissipation structure and manufacturing method thereof |
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