CN115464338B - Heat conduction mode of LED lamp and production process - Google Patents
Heat conduction mode of LED lamp and production process Download PDFInfo
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- CN115464338B CN115464338B CN202211119727.2A CN202211119727A CN115464338B CN 115464338 B CN115464338 B CN 115464338B CN 202211119727 A CN202211119727 A CN 202211119727A CN 115464338 B CN115464338 B CN 115464338B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 41
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 3
- 241001465382 Physalis alkekengi Species 0.000 abstract description 2
- 238000004512 die casting Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a novel heat conduction mode and a production process of an LED lamp, which utilize the advantage of high heat conduction coefficient of an extruded aluminum alloy section, and the heat conduction plate and the connecting part of the extruded aluminum alloy section lamp body are very tightly fused together, so that the heat transferred to the heat conduction plate by the LED lamp panel is quickly conducted to the lamp body, and the heat is prevented from being concentrated and remained in the lamp body. The utility model provides a novel heat conduction mode of LED lamps and lanterns which characterized in that: comprises a lamp body formed by adopting an aluminum alloy material extrusion profile; the middle of the lamp body is internally provided with a first through hole; the light emergent position of the first through hole is protruded with an inner layer step and an outer layer step, and the side surface of the inner layer step is a joint surface; the inner diameter of the joint surface is larger than that of the first through hole; the inner diameter of the outer layer step is larger than that of the inner layer step; the heat conducting plate is made of aluminum alloy material and matched with the inner layer of the step; the heat conducting plate is embedded into the lamp body, namely the outer side surface of the heat conducting plate is closely attached to the joint surface of the inner layer step, so that heat transfer loss is reduced.
Description
Technical Field
The invention belongs to the technical field of lamps, and particularly relates to a heat conduction mode and a production process of an LED lamp.
Background
Currently, other lamps on the market are basically lamp bodies made of die-casting aluminum alloy except for strip-shaped contour lamps and linear lamps which use extruded aluminum alloy profiles; the LED lamp panel is welded on the aluminum substrate by solder paste, the aluminum substrate is fixed on the bottom plate inside the lamp body by using screws and is filled with heat conduction silicone grease, so that the heat conduction performance is improved. The heat of the LED lamp panel is transferred to the bottom plate of the lamp through the aluminum substrate, and then is conducted to the heat dissipation ribs through the bottom plate, so that the heat is dissipated into the air. The aluminum alloy die-casting lamp body has the advantages of one-time molding, batch production and capability of making various shapes. It has the following problems:
1. the inside of die-casting aluminum alloy spare produces defects such as gas pocket, loose, lack material, cold shut easily, makes the heat dissipation of lamp body can not exert maximum effect, and coefficient of heat conductivity is not high.
2. The die of the die-casting aluminum alloy lamp body has higher processing difficulty and cost and long manufacturing period; due to the demolding problem, a plurality of process materials are added during product design, the production efficiency of the die-casting lamp body is low, and the cost of the lamp is increased.
3. The heat conductivity coefficient of the extruded aluminum alloy is more than one time higher than that of the die-cast aluminum alloy, and the extruded aluminum alloy is a good lamp body manufacturing material, but is only used for a strip-shaped profile lamp and a linear lamp at present, and the extruded aluminum alloy profile cannot be used for manufacturing round or square lamps such as a projection lamp, a spotlight and the like. Because the middle of the extruded aluminum alloy lamp body section bar can form a front-back through channel, a large amount of heat generated by the LED lamp panel cannot be emitted out of the lamp body, and the service life of the lamp is greatly reduced.
Disclosure of Invention
In view of the above drawbacks of the background art, an object of the present invention is to provide a heat conduction method and a production process for an LED lamp, which utilize the advantage of high heat conductivity coefficient of an extruded aluminum alloy profile to tightly fuse a connecting portion of a heat conduction plate and a lamp body of the extruded aluminum alloy profile together, so that heat transferred from the LED lamp panel to the heat conduction plate is rapidly transferred to the lamp body, and heat is prevented from being concentrated and remained in the lamp body.
In order to solve the technical problems, the aim of the invention is realized as follows:
the utility model provides a LED lamps and lanterns heat conduction mode which characterized in that: comprises a lamp body formed by adopting an aluminum alloy material extrusion profile; the middle of the lamp body is internally provided with a first through hole; the light emergent position of the first through hole is protruded with an inner layer step and an outer layer step, and the side surface of the inner layer step is a joint surface; the inner diameter of the joint surface is larger than that of the first through hole; the inner diameter of the outer layer step is larger than that of the inner layer step;
the heat conducting plate is made of aluminum alloy material and matched with the inner layer of the step;
the heat conducting plate is embedded into the lamp body, namely the outer side surface of the heat conducting plate is closely attached to the joint surface of the inner layer step, so that heat transfer loss is reduced.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the lamp is round, square, rectangular or elliptical in shape.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the outer surface of the lamp body is provided with fin-shaped radiating ribs in a protruding mode, and the radiating ribs and the lamp body are integrally formed; the radiating ribs are any one of triangle, trapezoid or square.
A production process of a heat conduction mode is characterized in that: the method comprises the following steps:
1. the lamp body is formed by adopting a model extrusion molding, and round bars of aluminum alloy materials are extruded by a die to form the lamp body; the middle part of the lamp body is provided with a first through hole after extrusion molding; the first through hole can be any one of round, square, rectangle or ellipse according to design requirements;
2. the diameter of the first through hole is 0.1 to 0.5 mm smaller than the required cavity designed by the lamp body; turning or milling the inner and outer steps by using a machining center;
3. the heat-conducting plate is made of round bars made of aluminum alloy materials, is processed into a cylindrical flat plate shape matched with the inner-layer steps, and the thickness of the corresponding heat-conducting plate is set according to the power requirement of the LED lamp;
4. and a special pressing machine is adopted to embed the heat conducting plate into the inner layer step of the lamp body for fixing.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the pressing machine comprises a machine body, a control box, a workbench, a die bottom plate, a positioning die body, a spring, a positioning die sleeve, a positioning pin, a pressure column, a pressing plate, a push rod, an upper plate, an oil cylinder, a bolt, a guide upright post, an oil pipeline and an oil tank;
the side surface of the machine body is in threaded connection with a control box, and an oil tank is arranged at the bottom of the machine body; the workbench is fixed on the upper surface of the machine body; the die bottom plate penetrates through the bolts and is fixedly connected with the upper surface of the workbench; the positioning die body is welded and fixed on the upper surface of the die bottom plate;
the middle part of the positioning die body is provided with a first through mounting hole, the edge of the top surface of the positioning die body is sunken to form an annular positioning flange, and the positioning flange is used for placing a lamp body;
a spring is placed in the first mounting hole and abuts against the bottom plate of the die;
the positioning die sleeve is inserted into the first mounting hole to cover the spring, the bottom of the positioning die sleeve is sunken to form a first pit, the spring is propped against the first pit, and the upper surface of the positioning die sleeve is provided with a positioning pin;
two opposite guide posts are welded and fixed on the upper surface of the machine body, a pressing plate is arranged between the guide posts in a penetrating way, a pressure column is welded on the lower surface of the pressing plate, and the outer contour of the pressure column is matched with the shape of the first through hole; an upper plate is fixed at the top of the guide upright post, an oil cylinder is fixed on the upper surface of the upper plate, and a push rod of the oil cylinder penetrates through the upper plate to be connected with the pressing plate; and an oil pipeline is connected between the oil cylinder and the oil tank.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the upper surface of the positioning die sleeve is sunken to form a second pit, and the positioning pin is embedded into the second pit for fixing.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the oil pipeline is connected with a pressure gauge.
The following steps are used:
1. the positioning die body and the positioning die sleeve with the required specification and size are selected according to the lamp body, the positioning die body is arranged on the workbench, the correct position is adjusted, the positioning die body is concentric with the pressure column, the position of the lowest point of the pressure column can be adjusted, and overpressure is avoided;
2. the aluminum alloy extrusion molded lamp body is arranged on a positioning flange of the positioning die body with a light emitting end face facing downwards; a positioning pit is recessed in the middle of the surface of the heat-conducting plate, the positioning pit of the heat-conducting plate is downwards placed on the first through hole of the lamp body, and the positioning pin is inserted into the positioning pit of the heat-conducting plate;
3. the control box starts the oil cylinder, the push rod of the oil cylinder drives the pressure column to downwards press the heat conducting plate and the positioning die sleeve downwards, the heat conducting plate is embedded into the inner layer step of the lamp body, the pressure column runs to the lowest point, the side surface of the heat conducting plate is attached to the joint surface of the inner layer step, the heat conducting plate is pressed in place, the pressure column is gradually lifted, and the lamp body is taken out.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
compared with the prior art,
1. according to the method, the lamp body is made of extruded aluminum alloy sections, the heat conducting plate is made of extruded aluminum alloy bars or rolled aluminum alloy plates, the heat conductivity coefficients of the two materials are more than doubled compared with those of die casting aluminum alloy, and the heat conducting effect is good.
2. The two materials are very compact, the lamp body and the heat conducting plate are combined, and after the lamp body and the heat conducting plate are processed, the two materials are combined into a whole by tightly embedding the combined surface, so that the heat conduction of the combined surface is hardly affected. The inside of the die-casting aluminum alloy lamp body is provided with more air holes, sand holes, cold barriers and other defects due to the limitation of the die-casting process, so that the heat conductivity coefficient of the die-casting aluminum alloy lamp body is lower, the heat dissipation is not smooth, and water leakage from the sand holes or the cold barriers is easy.
3. The method for extruding the aluminum alloy section has the advantages of low die cost and processing cost, high material utilization rate and low material cost of products;
4. the method is suitable for mass production, medium and small mass production, has very convenient tissue production and high production efficiency;
5. because the heat dissipation is much better than that of the die-casting aluminum alloy lamp body, the lamp with the same power can be smaller or the power with the same volume can be larger, which is fit for the current trend that the lamp industry tries to make the lamp small and the lamp is not seen by the visible light, and is very suitable for the demands of the current market.
Drawings
Fig. 1 is a schematic view of a press and a die used in the present invention.
Fig. 2 is a schematic view of the structure of the lamp body of the present invention.
Fig. 3 is a schematic view of the structure of the lamp body of the present invention.
Fig. 4 is a schematic view of a heat conducting plate structure of the present invention.
FIG. 5 is a schematic diagram of a welding structure of a positioning die body and a die bottom plate according to the present invention.
Fig. 6 is a schematic view of the positioning die sleeve of the present invention.
Fig. 7 is a schematic view of the structure of the mold of the present invention.
FIG. 8 is a schematic view of the structure of the present invention after placement of the heat conductive plate.
Reference numerals: a lamp body 10; a first through hole 101; a joint surface 102; a heat-conducting plate 9; positioning pit 901; a body 1; a control box 2; a work table 3; a mold bottom plate 4; positioning a die body 5; a first mounting hole 501; positioning flange 502; a spring 6; positioning a die sleeve 7; a first pit 701; a second pit 702; a positioning pin 8; a pressure column 11; a platen 12; a push rod 13; an upper plate 14; a pressure gauge 16; an oil cylinder 17; a bolt 18; an oil delivery line 24; an oil tank 25;
Detailed Description
The invention will be further described with reference to the following specific examples in conjunction with the accompanying drawings;
the embodiment provides a heat conduction mode and a production process of an LED lamp, wherein the heat conduction mode comprises a lamp body 10 formed by adopting an aluminum alloy material extrusion profile; a first through hole 101 penetrating the middle inner part of the lamp body 10; the light emergent position of the first through hole 101 is protruded with an inner layer step and an outer layer step, and the side surface of the inner layer step is a joint surface 102; the inner diameter of the joint surface 102 is larger than the inner diameter of the first through hole 101; the inner diameter of the outer layer step is larger than that of the inner layer step;
the heat conducting plate 9 is made of aluminum alloy material and matched with the inner layer step shape;
the heat-conducting plate 9 is embedded into the lamp body 10, namely the outer side surface of the heat-conducting plate 9 is tightly attached to the joint surface 102 of the inner layer step, so that heat transfer loss is reduced.
As described above, the lamp body 10 is integrally extruded, and has a better heat conduction effect; the middle of the extrusion section is a cylindrical through hole, the diameter of the extrusion section is slightly smaller than that of a designed lamp cavity, and the extrusion section is a machining allowance; the lamp body 10 section is fed to the required length of the lamp body 10, and the embedded joint surface 102 of the cylindrical through hole in the lamp body 10 and the heat conducting plate 9 is processed until the accuracy requirement is met; the heat conducting plate 9 is processed into a corresponding cylinder by using an extruded aluminum alloy round bar or a rolled aluminum alloy flat plate, the precision requirement is the same as that of the joint surface 102 of the lamp body 10, and a positioning pit 901 of the heat conducting plate 9 is processed at the center of the plane of the heat conducting plate 9 facing the front end of the lamp body 10.
Further, the lamp body 10 has any one of a circular shape, a square shape, a rectangular shape, and an elliptical shape.
As described above, the lamps with different shapes are prepared according to different design requirements;
further, the outer surface of the lamp body 10 protrudes from the fin-shaped heat dissipation ribs, and the heat dissipation ribs and the lamp body 10 are integrally formed; the radiating ribs are any one of triangle, trapezoid or square.
As described above, the heat dissipation ribs are in contact with the outside air for dissipating heat;
a production process of a heat conduction mode of an LED lamp comprises the following steps:
1. the lamp body 10 is formed by adopting a model extrusion, and round bars of aluminum alloy materials are extruded by a die to form the lamp body 10; the middle part of the lamp body 10 is provided with a first through hole 101 after extrusion molding; the first through hole 101 may be any one of a circle, a square, a rectangle or an ellipse according to design requirements;
2. the diameter of the first through hole 101 is 0.1 to 0.5 mm smaller than the required cavity designed by the lamp body 10; turning or milling the inner and outer steps by using a machining center; the required precision of precise lamination is achieved, and the effect of die casting integration is realized;
3. the heat-conducting plate 9 is made of round bars made of aluminum alloy materials, is processed into a cylindrical flat plate shape matched with the inner-layer steps, and the thickness of the corresponding heat-conducting plate 9 is set according to the power requirement of the LED lamp;
4. the heat conducting plate 9 is embedded into the inner layer step of the lamp body 10 to be fixed by adopting a special pressing machine.
As described above, according to the size of the inner cavity of the lamp body 10, the aluminum alloy lamp body 10 with a slightly smaller cylindrical through hole is formed by extrusion, and the joint surface 102 of the through hole is machined into a cylindrical inner wall with higher precision; the side surface of the heat-conducting plate 9 is processed into a cylinder with corresponding size, the special pressing machine is used for pressing the heat-conducting plate 9 into the bonding surface 102 at the corresponding position in the lamp body 10 slowly, so that materials of the bonding surface 102 at the side surface of the heat-conducting plate 9 and the inner wall of the lamp body 10 are mutually embedded to generate a fusion state, the heat of the LED lamp panel on the heat-conducting plate 9 is guaranteed to be well conducted to the lamp body 10, and then the heat is emitted to the outside of the lamp body 10 from the lamp body 10 to be emitted into a space.
Further, the pressing machine comprises a machine body 1, a control box 2, a workbench 3, a die bottom plate 4, a positioning die body 5, a spring 6, a positioning die sleeve 7, a positioning pin 8, a pressure column 11, a pressing plate 12, a push rod 13, an upper plate 14, an oil cylinder 17, a bolt 18, a guide upright post, an oil conveying pipeline 24 and an oil tank 25;
the side surface of the machine body 1 is in threaded connection with the control box 2, and an oil tank 25 is arranged at the bottom of the machine body 1; the workbench 3 is fixed on the upper surface of the machine body 1; the die bottom plate 4 passes through bolts 18 to be connected and fixed with the upper surface of the workbench 3; the positioning die body 5 is welded and fixed on the upper surface of the die bottom plate 4;
a first through mounting hole 501 is formed in the middle of the positioning die body 5, the edge of the top surface of the positioning die body 5 is recessed to form an annular positioning flange 502, and the positioning flange 502 is used for placing the lamp body 10;
a spring 6 is placed in the first mounting hole 501, and the spring 6 is pressed against the die bottom plate 4;
the positioning die sleeve 7 is inserted into the first mounting hole 501 to cover the spring 6, the bottom of the positioning die sleeve 7 is sunken to form a first pit 701, the spring 6 is propped against the first pit 701, and the upper surface of the positioning die sleeve 7 is provided with a positioning pin 8;
two opposite guide posts are welded and fixed on the upper surface of the machine body 1, a pressing plate 12 is arranged between the guide posts in a penetrating way, a pressure column 11 is welded on the lower surface of the pressing plate 12, and the outer contour of the pressure column 11 is matched with the shape of the first through hole 101; an upper plate 14 is fixed at the top of the guide upright post, an oil cylinder 17 is fixed on the upper surface of the upper plate 14, and a push rod 13 of the oil cylinder 17 penetrates through the upper plate 14 to be connected with the pressing plate 12; and an oil delivery pipeline 24 is connected between the oil cylinder 17 and an oil tank 25.
As described above, the heat conduction mode and the process method according to the invention use a special pressing machine and a special process die as shown in figure 1, and the special pressing machine and the special process die are required to be manufactured and debugged in advance. Firstly, after the center of the positioning die sleeve 7 is concentric with the center of the pressure column 11 of the pressing machine, the positioning die body 5 is pressed and fixed on the workbench 3 by using a hexagonal bolt 18 and a flat washer; the conical locating pin 8 is fitted into the second recess 702 of the locating die sleeve 7, the spring 6 is fitted into the locating die sleeve 7, and then together into the first mounting hole 501 of the locating die body 5.
The oil cylinder 17 drives the pressure column 11 to move up and down through the push rod 13; the positioning die sleeve 7 is reset by elasticity;
further, the upper surface of the positioning die sleeve 7 is recessed to form a second pit 702, and the positioning pin 8 is embedded into the second pit 702 for fixation.
As described above, the positioning pin 8 can be replaced after being worn for a long period of time;
further, a pressure gauge 16 is connected to the oil delivery line 24.
As described above, the display pressure is regulated by the oil tank 25;
the fourth step is as follows:
1. the positioning die body 5 and the positioning die sleeve 7 with the required specification and size are selected according to the lamp body 10, the positioning die body 5 is arranged on the workbench 3, the correct position is adjusted, the positioning die body 5 is concentric with the pressure column 11, the position of the lowest point of the pressure column 11 can be adjusted, and overpressure is avoided;
2. the lamp body 10 formed by extrusion molding of aluminum alloy is placed on the positioning flange 502 of the positioning die body 5 with the light emitting end face facing downwards; a positioning pit 901 is recessed in the middle of the surface of the heat conducting plate 9, the positioning pit 901 of the heat conducting plate 9 is placed downwards on the first through hole 101 of the lamp body 10, and the positioning pin 8 is inserted into the positioning pit 901 of the heat conducting plate 9;
3. the control box 2 starts the oil cylinder 17, the push rod 13 of the oil cylinder 17 drives the pressure column 11 to downwards press the heat conducting plate 9 together with the positioning die sleeve 7 downwards, the heat conducting plate 9 is embedded into the inner layer step of the lamp body 10, the pressure column 11 runs to the lowest point, the side surface of the heat conducting plate 9 is attached to the joint surface 102 of the inner layer step, the heat conducting plate 9 is pressed in place, the pressure column 11 is gradually lifted, and the lamp body 10 is taken out.
As described above, when the lamp body 10 and the heat conducting plate 9 are embedded by the press machine shown in fig. 1, the front end of the lamp body 10 is placed downwards on the positioning flange 502 of the positioning die body 5 and is put in place stably; then the heat-conducting plate 9 is placed on the positioning die sleeve 7, and the positioning pin 8 is inserted into the positioning pit 901 in the center of the heat-conducting plate 9; next, clicking a control switch of the press, moving a push rod 13 downwards by an oil cylinder 17 to push a pressing plate 12 to move downwards at a constant speed along the directions of four guide upright posts, driving a pressure column 11 to move downwards at a constant speed, pushing the heat conducting plate 9 and a positioning die sleeve 7 to move downwards simultaneously by the pressure column 11 when the pressure column 11 contacts the heat conducting plate 9 until reaching the limit lowest point of the press, stopping moving, and pressing the heat conducting plate 9 into a joint surface 102 of a lamp body 10 by the press, and integrating the heat conducting plate 9 and the joint surface 102 of the lamp body 10 to achieve the optimal conduction and heat conduction state; then, the pressure column 11, the pressing plate 12 and the push rod 13 are simultaneously moved upward until reaching the highest point, and then stopped, thereby completing a machining process.
The combination surface 102 of the lamp body 10 and the heat conducting plate 9 is embedded and integrated, the structure is the same as the die-casting aluminum alloy lamp body 10, and the lamp can be assembled by matching with other corresponding accessories;
the invention relates to a heat conduction mode and a process method of an LED lamp, which relates to and can manufacture round, square and other LED lamps, and comprises all lamps related to the invention, such as a projection lamp, a spotlight, a buried lamp, an underwater lamp, an industrial and mining lamp, a wall lamp, a down lamp and the like.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected;
the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (4)
1. A production process of a heat conduction mode of an LED lamp is characterized by comprising the following steps of: the LED lamp comprises a lamp body; the middle of the lamp body is internally provided with a first through hole; the light emergent position of the first through hole is protruded with an inner layer step and an outer layer step, and the side surface of the inner layer step is a joint surface; the inner diameter of the joint surface is larger than that of the first through hole; the inner diameter of the outer layer step is larger than that of the inner layer step; the heat conducting plate is matched with the inner layer step in shape; the heat conducting plate is embedded into the lamp body, namely the outer side surface of the heat conducting plate is tightly attached to the joint surface of the inner layer step, so that heat transfer loss is reduced; the shape of the lamp is any one of round, square, rectangle or ellipse; the outer surface of the lamp body is provided with fin-shaped radiating ribs in a protruding mode, and the radiating ribs and the lamp body are integrally formed; the radiating ribs are any one of triangle, trapezoid or square;
the production process comprises the following steps:
step one, extruding a lamp body by a model, and extruding a round rod of an aluminum alloy material through a die to form the lamp body; the middle part of the lamp body is provided with a first through hole after extrusion molding; the first through hole adopts any one of a round shape, a square shape, a rectangle shape or an oval shape according to design requirements;
step two, the diameter of the first through hole is 0.1 to 0.5 mm smaller than the required cavity designed by the lamp body; turning or milling the inner and outer steps by using a machining center;
step three, the heat conducting plate is made of round bars made of aluminum alloy materials, is processed into a cylindrical flat plate shape matched with the inner-layer steps, and the thickness of the corresponding heat conducting plate is set according to the power requirement of the LED lamp;
step four, a special pressing machine is adopted to embed the heat conducting plate into an inner layer step of the lamp body for fixing;
the pressing machine comprises a machine body, a control box, a workbench, a die bottom plate, a positioning die body, a spring, a positioning die sleeve, a positioning pin, a pressure column, a pressing plate, a push rod, an upper plate, an oil cylinder, a bolt, a guide upright post, an oil pipeline and an oil tank;
the side surface of the machine body is in threaded connection with a control box, and an oil tank is arranged at the bottom of the machine body; the workbench is fixed on the upper surface of the machine body; the die bottom plate penetrates through the bolts and is fixedly connected with the upper surface of the workbench; the positioning die body is welded and fixed on the upper surface of the die bottom plate;
the middle part of the positioning die body is provided with a first through mounting hole, the edge of the top surface of the positioning die body is sunken to form an annular positioning flange, and the positioning flange is used for placing a lamp body;
a spring is placed in the first mounting hole and abuts against the bottom plate of the die;
the positioning die sleeve is inserted into the first mounting hole to cover the spring, the bottom of the positioning die sleeve is sunken to form a first pit, the spring is propped against the first pit, and the upper surface of the positioning die sleeve is provided with a positioning pin;
two opposite guide posts are welded and fixed on the upper surface of the machine body, a pressing plate is arranged between the guide posts in a penetrating way, a pressure column is welded on the lower surface of the pressing plate, and the outer contour of the pressure column is matched with the shape of the first through hole; an upper plate is fixed at the top of the guide upright post, an oil cylinder is fixed on the upper surface of the upper plate, and a push rod of the oil cylinder penetrates through the upper plate to be connected with the pressing plate; and an oil pipeline is connected between the oil cylinder and the oil tank.
2. The process for producing the heat conduction mode of the LED lamp according to claim 1, wherein the process comprises the following steps of: the upper surface of the positioning die sleeve is sunken to form a second pit, and the positioning pin is embedded into the second pit for fixing.
3. The process for producing the heat conduction mode of the LED lamp according to claim 1, wherein the process comprises the following steps of: the oil pipeline is connected with a pressure gauge.
4. The process for producing the heat conduction mode of the LED lamp according to claim 1, wherein the process comprises the following steps of: the fourth step comprises the following using steps:
1. the positioning die body and the positioning die sleeve with the required specification and size are selected according to the lamp body, the positioning die body is arranged on the workbench, the correct position is adjusted, the positioning die body is concentric with the pressure column, the position of the lowest point of the pressure column can be adjusted, and overpressure is avoided;
2. the aluminum alloy extrusion molded lamp body is arranged on a positioning flange of the positioning die body with a light emitting end face facing downwards; a positioning pit is recessed in the middle of the surface of the heat-conducting plate, the positioning pit of the heat-conducting plate is downwards placed on the first through hole of the lamp body, and the positioning pin is inserted into the positioning pit of the heat-conducting plate;
3. the control box starts the oil cylinder, the push rod of the oil cylinder drives the pressure column to downwards press the heat conducting plate and the positioning die sleeve downwards, the heat conducting plate is embedded into the inner layer step of the lamp body, the pressure column runs to the lowest point, the side surface of the heat conducting plate is attached to the joint surface of the inner layer step, the heat conducting plate is pressed in place, the pressure column is gradually lifted, and the lamp body is taken out.
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| CN202211119727.2A CN115464338B (en) | 2022-09-14 | 2022-09-14 | Heat conduction mode of LED lamp and production process |
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| CN202211119727.2A CN115464338B (en) | 2022-09-14 | 2022-09-14 | Heat conduction mode of LED lamp and production process |
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| CN115464338B true CN115464338B (en) | 2024-04-02 |
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| CN105423152A (en) * | 2015-12-23 | 2016-03-23 | 厦门多彩光电子科技有限公司 | LED lamp |
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| CN210373338U (en) * | 2019-09-28 | 2020-04-21 | 厦门绿尔达光电有限公司 | Power supply driving board for LED lamp |
| CN212636561U (en) * | 2020-02-02 | 2021-03-02 | 袁培 | Extrusion die of silica gel sealing strip |
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| CN101363609A (en) * | 2008-08-26 | 2009-02-11 | 李霖 | Light source assembly high-power LED lamp and installation method thereof in lamp holder |
| CN102913876A (en) * | 2012-09-28 | 2013-02-06 | 深圳市慧盈通机电有限公司 | LED (light emitting diode) lamp, heat radiator used for LED lamp and machining process of heat radiator |
| CN204853008U (en) * | 2015-07-22 | 2015-12-09 | 惠州市三鼎能源科技有限公司 | LED lamps and lanterns |
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| Publication number | Publication date |
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| CN115464338A (en) | 2022-12-13 |
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