CN113448155A - Method for manufacturing projection optical machine - Google Patents
Method for manufacturing projection optical machine Download PDFInfo
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- CN113448155A CN113448155A CN202110613987.4A CN202110613987A CN113448155A CN 113448155 A CN113448155 A CN 113448155A CN 202110613987 A CN202110613987 A CN 202110613987A CN 113448155 A CN113448155 A CN 113448155A
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- aluminum
- radiator
- heat pipe
- light source
- heat
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The embodiment of the invention relates to the technical field of manufacturing of a projection optical machine, and discloses a manufacturing method of the projection optical machine, which is applied to the projection optical machine with a light source module and a heat dissipation module, wherein the heat dissipation module comprises an aluminum radiator and at least one heat pipe.
Description
Technical Field
The embodiment of the invention relates to the technical field of manufacturing of projection photomachines, in particular to a manufacturing method of a projection photomachine.
Background
In the operation process of an optical machine module in the projection equipment, the light source module is limited by physical characteristics, electric energy can be converted into light energy and heat energy in the operation process, the heat energy is usually reflected in a mode that the temperature of an object rises, and the influence of the material, the packaging material, the process and the like of the current light source chip is led to, and the risks of light effect reduction, color temperature drift, forward voltage (VF value) drift, even burning of electronic components and the like of the light source module can usually occur when the temperature of components in the light source module, such as a PN junction in a light emitting diode light source, rises.
In implementing the embodiments of the present invention, the inventors found that at least the following problems exist in the above related art: at present, in order to solve the problem that a light source in a projection light machine is easily overheated, an existing scheme generally selects to reduce the heat generation of the light source, for example, to reduce the number of light sources such as light emitting diodes in the light source and increase the area of a light source panel, or directly adopts a cold light source or a fluorescent light source with low thermal efficiency, and most of the light sources are improved, however, such improvements bring about the problems of unsatisfactory light emitting effect of the light source, increased cost and the like.
Disclosure of Invention
The embodiment of the application provides a manufacturing method of a projection optical machine, which is simple in process and good in reliability.
The purpose of the embodiment of the invention is realized by the following technical scheme:
in order to solve the above technical problem, an embodiment of the present invention provides a method for manufacturing a projection optical machine, which is applied to a projection optical machine, where the projection optical machine includes a light source module and a heat dissipation module, the heat dissipation module includes an aluminum heat sink and at least one heat pipe, and the method includes:
fixing the heating end of the at least one heat pipe on the backlight side of the light source module by low-temperature welding;
and fixing the condensation end of the at least one heat pipe on the aluminum radiator.
In some embodiments, the light engine further comprises a projection lens,
the method further comprises the following steps:
and the light-emitting side of the light source module is provided with the projection lens.
In some embodiments, the heat dissipation module further comprises a fan,
the method further comprises the following steps:
the fan is assembled on the aluminum heat sink.
In some embodiments, the light source module comprises an LED light source and a copper substrate,
before fixing the heating end of the at least one heat pipe on the backlight side of the light source module by low-temperature welding, the method further comprises:
and welding and fixing the light emitting diode light source on one side of the copper substrate.
In some embodiments, the fixing the heat generating end of the at least one heat pipe to the backlight side of the light source module by low temperature welding includes:
and welding and fixing the heating end of the at least one heat pipe on the other side of the copper substrate through low-temperature solder paste.
In some embodiments, said fixing the condensation end of said at least one heat pipe to said aluminum heat sink comprises:
and fixing the condensation end of the at least one heat pipe on the aluminum radiator by low-temperature solder paste in a welding manner.
In some embodiments, said fixing the condensation end of said at least one heat pipe to said aluminum heat sink comprises:
and fixing the condensation end of the at least one heat pipe on the aluminum radiator in an interference fit manner.
In some embodiments, the aluminum heat sink is a fin heat sink,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and manufacturing the aluminum sheets by a punch forming process, and superposing and combining the aluminum sheets to obtain the fin radiator.
In some embodiments, the aluminum heat sink is a cold-forged heat sink,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and processing the aluminum block by a forging and pressing die to obtain the cold forging radiator.
In some embodiments, the aluminum heat sink is an aluminum profile heat sink,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and processing the aluminum profile radiator by an aluminum extruded profile stretching forming process.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps of firstly fixing the heating end of at least one heat pipe on the backlight side of the light source module through low-temperature welding, and then fixing the condensation end of at least one heat pipe on the aluminum radiator to complete the manufacture of the projection optical machine.
Drawings
One or more embodiments are illustrated by the accompanying figures in the drawings that correspond thereto and are not to be construed as limiting the embodiments, wherein elements/modules and steps having the same reference numerals are represented by like elements/modules and steps, unless otherwise specified, and the drawings are not to scale.
Fig. 1 is a first flowchart of a method for manufacturing a projection optical engine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a projection optical machine according to an embodiment of the present invention;
fig. 3 is a second flowchart of a method for manufacturing a projection optical engine according to an embodiment of the present invention;
fig. 4 is a third flowchart illustrating a manufacturing method of a projection light engine according to an embodiment of the present invention;
fig. 5 is a fourth flowchart illustrating a manufacturing method of a projection light engine according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an aluminum heat sink in the projector carriage shown in FIG. 2;
fig. 7 is a fifth flowchart illustrating a manufacturing method of a projection light engine according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a projection optical machine according to a second embodiment of the present invention;
FIG. 9 is a schematic diagram of an aluminum heat sink in the projector carriage shown in FIG. 8;
fig. 10 is a schematic flow chart illustrating a manufacturing method of a projection optical machine according to a second embodiment of the present invention;
fig. 11 is a schematic structural diagram of a projection optical machine according to a third embodiment of the present invention;
FIG. 12 is a schematic diagram of an aluminum heat sink in the optical projection engine shown in FIG. 11;
fig. 13 is a flowchart illustrating a manufacturing method of a projection light engine according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the present application. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to solve the problems that the light source module in the existing projection optical machine is difficult to dissipate heat and overhigh temperature is easy to occur, the embodiment of the invention provides a manufacturing method of the projection optical machine.
Specifically, the embodiments of the present invention will be further explained below with reference to the drawings.
Example one
An embodiment of the present invention provides a method for manufacturing a projection light engine, please refer to fig. 1, which shows a first flow of the method for manufacturing the projection light engine provided by the embodiment of the present invention, and the method includes, but is not limited to, the following steps:
step 10: fixing the heating end of the at least one heat pipe on the backlight side of the light source module by low-temperature welding;
referring to fig. 2, a structure of a projection optical engine according to an embodiment of the present invention is shown, the projection optical engine includes a light source module 200 and a heat dissipation module 100, and the heat dissipation module 100 includes an aluminum heat sink 120 and at least one heat pipe 110.
Preferably, the heat pipe 110 may be made of a material having a strong heat conduction capability and/or a high specific heat capacity, such as metal, and may be hollow or solid, and after the material is made into a long rod shape, the heat pipe 110 is made by bending, and further, a certain friction treatment may be performed at both ends of the heat pipe 110 to increase the friction force at both ends, so that both ends of the heat pipe can be more firmly fixed when being respectively fixed to the light source module 200 and the aluminum heat sink 120.
The aluminum heat sink 120 is made of aluminum, and has a good heat dissipation effect, and specifically, the heat exchange area, the size, and the like of the aluminum heat sink 120 can be set according to actual needs, and need not be limited by the embodiment of the present invention.
Step 20: and fixing the condensation end of the at least one heat pipe on the aluminum radiator.
Specifically, the condensation end of the at least one heat pipe is fixed on the aluminum radiator by low-temperature solder paste welding, or the condensation end of the at least one heat pipe is fixed on the aluminum radiator by interference fit.
Wherein, through the fixed mode of low temperature soldering tin, can be more effective quick transmission heat, and the fixed mode of adoption interference fit then can have simple structure, the centering nature is good, bear the weight of advantages such as dynamic height, can select according to actual conditions in the in-service use. In other embodiments, the two ends of the heat pipe 110 may also be fixed to the light source module 200 and the aluminum heat sink 120 respectively by other methods, for example, by fastening, screwing, gluing with high temperature glue, or the like.
Further, the optical projection engine further includes a projection lens (not shown), please refer to fig. 3, which shows a second flow of a manufacturing method of the optical projection engine according to an embodiment of the present invention, and the method further includes:
and step 30, arranging the projection lens on the light emergent side of the light source module.
Through the arrangement of the projection lens, the light source module 200 is excited to generate a projection image after being irradiated, so that the projection image can be adjusted and projection can be realized, preferably, the projection lens at least comprises a projection chip and a lens group, the projection chip is used for receiving light source light emitted by the light source module 200 and generating projection image light, and the lens group is used for adjusting the focal length, distortion, projection direction, size and the like of the projection image.
Further, with continuing reference to fig. 2, the heat dissipation module 100 further includes a fan 130, and with reference to fig. 4, a third flow of the manufacturing method of the optical projection engine according to the embodiment of the present invention is shown, where the method further includes:
step 40: the fan is assembled on the aluminum heat sink.
In the embodiment of the present invention, referring to fig. 2, a fan 130 may be further disposed on the aluminum heat sink 120 to increase a heat convection coefficient during a heat convection process, so as to increase heat convection. Of course, the fan 130 may not be provided, and when the fan 130 is not provided, the heat reaching the aluminum heat sink 120 is dissipated by natural convection, and in actual use, the installation positions, the number, and the like of the fans 130 may be set according to actual needs, and need not be limited by the embodiment of the present invention.
Further, referring to fig. 2, the light source module 200 includes an led light source 210 and a copper substrate 220, referring to fig. 5, which shows a fourth process of a manufacturing method of a light projector according to an embodiment of the present invention, before the step 10, the method further includes:
step 50: and welding and fixing the light emitting diode light source on one side of the copper substrate.
Referring to fig. 2, the light source module 200 includes a Light Emitting Diode (LED) light source 210 and a copper substrate 220, and therefore, before fixing the heat generating end of the at least one heat pipe to the backlight side of the light source module by low temperature welding, the LED light source 210 needs to be fixed to one side of the copper substrate 220.
Based on this, the step 10 further comprises:
step 11: and welding and fixing the heating end of the at least one heat pipe on the other side of the copper substrate through low-temperature solder paste.
After the led light source 210 is fixedly disposed on one side of the copper substrate 220, the fixing the heat generating end of the at least one heat pipe on the backlight side of the light source module by low temperature welding includes: the heat-generating end 111 of the at least one heat pipe 110 is fixed to the other side of the copper substrate 220 by low-temperature solder paste.
In practical applications, the light source module 200 may not be the structure of the light source module 200 shown in fig. 2, but may also be another type of light source, such as a laser, and a light source bulb may also be mounted on another type of substrate.
In an embodiment of the present invention, specifically, please refer to fig. 6 together, which shows a structure of an aluminum heat sink in the projection optical engine shown in fig. 2, as shown in fig. 6, the aluminum heat sink is a fin heat sink, before the step 20, refer to fig. 7, which shows a fifth flow of a manufacturing method of the projection optical engine provided in the embodiment of the present invention, and the method further includes:
Before the condensation end of the at least one heat pipe is fixed on the aluminum radiator, aluminum sheets are continuously punched and formed, and a plurality of aluminum sheets are combined after being overlapped to obtain the fin radiator 120. Specifically, in the fin heat sink 120, the number and area of the fins, the heat exchange area and the size and the like may be set according to actual needs, and need not be limited by the embodiments of the present invention.
Example two
An embodiment of the present invention provides a method for manufacturing a projection optical engine, which has the same features as those in step 10 to step 50 of the above embodiment and corresponding fig. 1 and fig. 3 to fig. 5, and is different from the above embodiment in that a different aluminum heat sink is provided in the projection optical engine of the embodiment of the present invention, and a method for manufacturing the aluminum heat sink is provided accordingly, specifically, referring to fig. 8 and fig. 9, structures of the projection optical engine and the aluminum heat sink in the projection optical engine provided by the embodiment of the present invention are respectively shown, as shown in fig. 9, the aluminum heat sink is a cold forging heat sink, before step 20, referring to fig. 10, which shows a flow of the method for manufacturing the projection optical engine provided by the embodiment of the present invention, and the method further includes:
Before the condensation end of the at least one heat pipe is fixed on the aluminum radiator, an aluminum block is extruded by a forging die to be molded, and the aluminum block is sequentially processed by corresponding secondary processing procedures to obtain the cold forging radiator 120. Specifically, in the cold forging heat sink 120, the heat exchange area, the size, and the like may be set according to actual needs, and need not be limited by the embodiments of the present invention.
EXAMPLE III
An embodiment of the present invention provides a manufacturing method of a projection optical engine, which has the same features as those in step 10 to step 50 of the above embodiment and corresponding fig. 1 and fig. 3 to fig. 5, and is different from the above embodiment in that a different aluminum heat sink is provided in the projection optical engine of the embodiment of the present invention, and a manufacturing method of the aluminum heat sink is correspondingly provided, specifically, referring to fig. 11 and fig. 12, structures of the projection optical engine and the aluminum heat sink in the projection optical engine provided by the embodiment of the present invention are respectively shown, as shown in fig. 12, the aluminum heat sink is an aluminum profile heat sink, before step 20, referring to fig. 13, which shows a flow of the manufacturing method of the projection optical engine provided by the embodiment of the present invention, and the method further includes:
Before the condensation end of the at least one heat pipe is fixed on the aluminum radiator, the aluminum extruded section is stretched and formed, and then is sequentially processed through secondary processing procedures of cutting, grooving, hole milling, anodic oxidation and the like, so that the aluminum section radiator 120 is obtained. Specifically, in the aluminum profile heat sink 120, the heat exchange area, the size, and the like can be set according to actual needs, and need not be limited by the embodiments of the present invention.
The embodiment of the invention provides a manufacturing method of a projection light machine, which is applied to the projection light machine with a light source module and a heat dissipation module, wherein the heat dissipation module comprises an aluminum radiator and at least one heat pipe.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The manufacturing method of the projection optical machine is characterized by being applied to the projection optical machine, wherein the projection optical machine comprises a light source module and a heat dissipation module, the heat dissipation module comprises an aluminum radiator and at least one heat pipe, and the method comprises the following steps:
fixing the heating end of the at least one heat pipe on the backlight side of the light source module by low-temperature welding;
and fixing the condensation end of the at least one heat pipe on the aluminum radiator.
2. The method of manufacturing according to claim 1,
the projection optical machine also comprises a projection lens,
the method further comprises the following steps:
and the light-emitting side of the light source module is provided with the projection lens.
3. The method of manufacturing according to claim 1,
the heat dissipation module further comprises a fan,
the method further comprises the following steps:
the fan is assembled on the aluminum heat sink.
4. The method of manufacturing according to claim 1,
the light source module comprises a light emitting diode light source and a copper substrate,
before fixing the heating end of the at least one heat pipe on the backlight side of the light source module by low-temperature welding, the method further comprises:
and welding and fixing the light emitting diode light source on one side of the copper substrate.
5. The method of manufacturing according to claim 4,
the end of will generating heat of at least one heat pipe passes through low temperature welded fastening in the side of being shaded of light source module includes:
and welding and fixing the heating end of the at least one heat pipe on the other side of the copper substrate through low-temperature solder paste.
6. The method of manufacturing according to claim 1,
fixing the condensation end of the at least one heat pipe on the aluminum radiator, comprising:
and fixing the condensation end of the at least one heat pipe on the aluminum radiator by low-temperature solder paste in a welding manner.
7. The method of manufacturing according to claim 1,
fixing the condensation end of the at least one heat pipe on the aluminum radiator, comprising:
and fixing the condensation end of the at least one heat pipe on the aluminum radiator in an interference fit manner.
8. The production method according to any one of claims 1 to 7,
the aluminum heat sink is a fin heat sink,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and manufacturing the aluminum sheets by a punch forming process, and superposing and combining the aluminum sheets to obtain the fin radiator.
9. The production method according to any one of claims 1 to 7,
the aluminum heat radiator is a cold forging heat radiator,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and processing the aluminum block by a forging and pressing die to obtain the cold forging radiator.
10. The production method according to any one of claims 1 to 7,
the aluminum radiator is an aluminum profile radiator,
prior to said affixing the condensation end of said at least one heat pipe to said aluminum heat sink, said method further comprising:
and processing the aluminum profile radiator by an aluminum extruded profile stretching forming process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110613987.4A CN113448155A (en) | 2021-06-02 | 2021-06-02 | Method for manufacturing projection optical machine |
| PCT/CN2021/111743 WO2022252395A1 (en) | 2021-06-02 | 2021-08-10 | Manufacturing method for optical projection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110613987.4A CN113448155A (en) | 2021-06-02 | 2021-06-02 | Method for manufacturing projection optical machine |
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| CN113448155A true CN113448155A (en) | 2021-09-28 |
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| CN202110613987.4A Pending CN113448155A (en) | 2021-06-02 | 2021-06-02 | Method for manufacturing projection optical machine |
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| CN (1) | CN113448155A (en) |
| WO (1) | WO2022252395A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022252394A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projection optical engine |
| WO2022252396A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projector |
| WO2022252397A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projector optical machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252394A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projection optical engine |
| WO2022252396A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projector |
| WO2022252397A1 (en) * | 2021-06-02 | 2022-12-08 | 广景视睿科技（深圳）有限公司 | Heat dissipation module and projector optical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022252395A1 (en) | 2022-12-08 |
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