WO2018103292A1 - 密封结构的光学模组及投影设备 - Google Patents

密封结构的光学模组及投影设备 Download PDF

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Publication number
WO2018103292A1
WO2018103292A1 PCT/CN2017/088618 CN2017088618W WO2018103292A1 WO 2018103292 A1 WO2018103292 A1 WO 2018103292A1 CN 2017088618 W CN2017088618 W CN 2017088618W WO 2018103292 A1 WO2018103292 A1 WO 2018103292A1
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WO
WIPO (PCT)
Prior art keywords
bonding
components
sealing
continuous
bonding layer
Prior art date
Application number
PCT/CN2017/088618
Other languages
English (en)
French (fr)
Inventor
钟烨蔚
胡飞
徐应荣
李屹
Original Assignee
深圳市光峰光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Publication of WO2018103292A1 publication Critical patent/WO2018103292A1/zh

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Classifications

    • 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
    • G03B21/2086—Security or safety means in lamp houses
    • 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

Definitions

  • the present application relates to the field of optics, and in particular to an optical module with a sealing structure and a projection device.
  • a significant portion of the light source components used in projection equipment require a matching cooling device (such as a semiconductor refrigerator). Otherwise, if the operating temperature of the light source component is too high, the light output power and working life of the light source component will be lowered.
  • the use of cooling equipment poses a problem.
  • the ambient temperature is relatively high, the cooling temperature of the cooling equipment may be lower than the ambient temperature.
  • the temperature of the light source component after being cooled by the cooling device may also be lower than the ambient temperature.
  • condensation may occur on components that are lower than the ambient temperature, and condensation may adversely affect the components of the light source.
  • the common solution is to seal the light source components, cooling equipment and other related equipment in a closed cavity and keep the inside of the cavity sufficiently dry. Thus, even if the operating temperature of the components such as the light source member and the cooling device is lower than the ring temperature, condensation does not adhere to the light source member.
  • 1 is a cross-sectional view of the sealed cavity 10. As shown in FIG. 1, the sealed cavity 10 is enclosed by the light-emitting optical member 101, the casing 102, the casing 103 and the casing 104, and other casings not shown in FIG. The light source component 105 and the cooling device 106 are placed in the sealed cavity 10, and the power supply line 107 passes through the housing 103 to supply power to the light source components.
  • the contacts surrounding the various components of the sealed cavity 10 require sealing, and the contact of the power supply line 107 with the housing 103 requires sealing.
  • a highly integrated housing may cause inconvenience to the assembly process, such as inconvenient assembly of light source components and cooling devices into the sealed cavity, and the formation of a highly integrated housing may also exist in the process. difficult.
  • the sealing cavity is often properly split during the actual design process.
  • the contact between the various components is generally welded, because the sealing waterproof effect of the welding is relatively good.
  • a glue is used to bond the two components, the water vapor is easily penetrated by the glue, and the waterproof performance is obtained. Not good; and glass solder is generally used to fill the gap between the power supply line 107 and the housing 103.
  • the sealing cavity material is preferably a material having good thermal conductivity and light weight, such as aluminum.
  • the welding of aluminum parts is inconvenient, and it is difficult to weld the aluminum parts in the process.
  • the aluminum member is different from the thermal expansion system of the glass solder, the sealing surface between the glass solder and the aluminum member may be peeled off due to the thermal expansion and contraction, thereby causing the seal to fail.
  • the present application provides an optical module with a sealing structure and a projection device.
  • An optical module with a sealing structure comprising a cavity, an adapter plate, a light source and a power connector, wherein:
  • the cavity has a first opening, and the wall of the adapter plate and the first opening are sealed and bonded by a first continuous bonding layer, and the cavity and the adapter plate surround the sealing cavity Forming a sealed space inside the sealed cavity;
  • the light source is disposed in the sealed space for emitting a light beam, and a part of the wall of the cavity is a light transmitting body for the light beam to be emitted;
  • the power connector passes through the adapter plate and is electrically connected to the light source for powering the light source, and the power connector and the adapter plate are welded and sealed by a solder material, the transfer
  • the coefficient of thermal expansion of the plate is similar to the coefficient of thermal expansion of the solder material.
  • the power connector and the adapter plate are welded and sealed by a solder material, and the adapter plate is further sealed and bonded to the wall around the first opening of the cavity, and the thermal expansion coefficient of the adapter plate is similar to the thermal expansion coefficient of the solder material. Therefore, in the influence of thermal expansion and contraction, the welding material and the adapter plate are not easily peeled off each other to cause sealing failure, and the cover can still be selected from materials having good thermal conductivity and light material, such as aluminum. Therefore, the optical module with a sealing structure of the embodiment can have good heat dissipation performance, and can avoid the problem of sealing failure caused by peeling of the welding material and the shell due to thermal expansion and contraction.
  • the power connector is a conductive pin
  • the conductive pin is connected to the light source through a power supply line
  • the conductive pin is soldered to the power supply line.
  • the solder material is a glass solder.
  • the cavity is formed by a sealed connection of a cover case, a bottom case and a light transmissive member, a part of the light transmissive member being the light transmissive body for emitting the light beam; the first opening is opened On the cover case, the cover case further has a second opening, and the transparent member and the case around the second opening are sealingly bonded by a second continuous adhesive layer; the cover case is fastened On the bottom case, the cover case and the bottom case are sealingly bonded by a third continuous adhesive layer.
  • the cavity is composed of a cover shell, a bottom shell and a transparent member, and the assembly process is simple and convenient.
  • each successive bonding layer of the first continuous bonding layer, the second continuous bonding layer, and the third continuous bonding layer includes an inner edge that communicates with a sealed space of the sealing cavity and An outer edge communicating with the outer space of the sealed cavity, and passing between any first point on the inner edge of the same continuous bonding layer and any second point on the outer edge
  • the shortest path length of the continuous bonding layer is greater than or equal to 7 mm. In the optical module with a sealing structure of this embodiment, since the shortest length of each continuous bonding layer reaches 7 mm, it has good waterproof sealing performance.
  • the leakage rate of the entire sealed cavity is not more than 10-8Pa*m3/s.
  • the first continuous bonding layer, the second continuous bonding layer and the third continuous bonding layer have at least one continuous bonding layer, and the two bonding layers bonded by the continuous bonding layer
  • each of the bonding components has a basic portion for surrounding the sealing space, the two basic portions are sealingly and fixedly connected by a basic bonding layer, and at least one of the two bonding components is further Having an expansion portion that is sealingly coupled to another of the two bonding components by an expanded bonding layer, the extended bonding layer extending along the basic bonding layer, the extended bonding
  • the tie layer and the base bonding layer form the continuous bonding layer between the two bonding components.
  • the expansion portion can be used to expand the bonding area between the two bonding components.
  • the expansion portion is integrally formed with the base portion thereof.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the basic portions of the two bonding components being bonded to have a substantially L-shaped cross section.
  • the structure, the expansion portions of the two bonding components extend toward the outer space of the sealing cavity and are bonded to each other, and the basic bonding layer and the extended bonding layer are in the same plane.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, and the base portion and the expansion portion of one of the bonding components are combined to have a cross section of substantially L a structure in which the base portion and the expanded portion of the other bonding assembly are combined into a substantially cross-sectional L-shaped structure having a substantially L-shaped cross section and a substantially inverted cross section
  • the shaped structures are bonded to each other such that the cross-section of the continuous bonding layers of the two bonding assemblies constitutes a substantially Z-shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing
  • the outer space of the cavity is in communication, or the expansion of the one of the bonding components is in communication with the sealing space of the sealing cavity.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding members are bonded to a structure having a substantially L-shaped cross section, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a flat plate structure, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding components are bonded to each other in a parallel and superposed structure, and the continuous bonding layers of the two bonding components are planar.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a structure having a substantially L-shaped cross section, and the continuous bonding layers of the two bonding members are planar.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a flat plate structure, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding components are bonded to each other in a parallel and superposed structure, and the continuous bonding layers of the two bonding components are planar.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, and the base portion and the expansion portion of each bonding assembly are combined into a cross section of substantially L
  • the shape of the structure, the two substantially L-shaped structures are superimposed and bonded such that the cross-section of the continuous bonding layers of the two bonding components constitutes a substantially L shape.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the basic portions of the two bonding components being bonded to have a substantially L-shaped cross section. a structure; an extension of one of the bonding components is in communication with an outer space of the sealing cavity, and extends from a base of the one of the bonding components along a base of the other of the bonding components, and the other a base portion bonding of the bonding component; wherein the extension portion of the other bonding component is in communication with the sealing space of the sealing cavity, and bonding from the base portion of the other bonding component along the one of the bonding components
  • the base portion of the assembly extends and is bonded to the base portion of one of the bonding assemblies.
  • An optical module with a sealing structure comprising a sealing cavity and an optical device, wherein: the sealing cavity is formed by sealing connection of two or more splicing components, and a sealing space is formed inside the sealing cavity; a portion of the wall of the sealed cavity is a light transmissive body for the light beam to pass between the sealed space of the sealed cavity and the outer space of the sealed cavity, the optical device being placed in the sealed space;
  • the splicing assembly includes at least two bonding components, the two bonding components are fixedly connected by an adhesive seal, each bonding component of the two bonding components having a basic portion for surrounding the sealed space
  • the two basic portions are sealed and fixedly connected by a basic adhesive layer, and at least one of the two adhesive components further has an expansion portion, the expansion portion and the two adhesive components are extended by the adhesive layer
  • the other bonding component is sealingly connected, the expanded bonding layer extends along the basic bonding layer, and the extended bonding layer and the basic bonding layer constitute a continuous bonding between the two bonding components Layer.
  • the sealing cavity is assembled by bonding two bonding components, and the operation is simple and easy; and since the bonding is not used, the material having good thermal conductivity and light material, such as aluminum, can be selected. Therefore, the optical module with a sealing structure of the embodiment can have good heat dissipation performance; in addition, the bonding component has an expansion portion, and the expansion portion can be used to increase the bonding area between the two bonding components, thereby obtaining better. Sealed waterproof effect.
  • the sealing cavity is formed by a sealing connection of a cover case, a bottom case and at least one light transmissive member, the cover case being fastened on the bottom case, and the cover case and the bottom case pass a continuous adhesive layer sealingly bonding; one or both of the cover case and the bottom case are provided with an opening, a total amount of openings formed in the cover case and the bottom case, and the light transmission
  • the number of components is the same and the openings are in one-to-one correspondence with the light-transmitting members, and the light-transmitting members are sealed and bonded by a continuous adhesive layer to the casing around the corresponding openings.
  • the sealing cavity is composed of a cover shell, a bottom shell and a transparent member, and the assembly process is simple and easy.
  • the sealed cavity includes a light transmissive member that acts as an entrance to the light and as an exit port for the light.
  • the sealed cavity includes two light transmissive members, one of which serves as an entrance for light and the other of which serves as an exit port for light.
  • the continuous bonding layer includes an inner edge that communicates with the sealing space of the sealing structure and an outer edge that communicates with an outer space of the sealing structure; any first on the inner edge
  • the shortest path length between the point and any second point on the outer edge through the continuous bonding layer is greater than or equal to 7 mm.
  • the optical module with a sealing structure of this embodiment since the shortest length of the continuous bonding layer reaches 7 mm, it has good waterproof sealing performance. After testing, it can meet the high standard waterproof seal: according to the product in the environment of 35 ° C and 90% humidity for ten years, the leaked water does not exceed the water absorption of the desiccant, the leakage rate of the entire sealed cavity is not more than 10-8Pa*m3/s.
  • the optical device is an electrical device
  • the module with a sealed structure further includes a power connector, the power connector being electrically connected to the electrical device for use
  • the device is powered; the power connector passes through a bonding assembly, and the power connector and the bonding assembly are welded and sealed by a soldering material having a coefficient of thermal expansion similar to a coefficient of thermal expansion of the solder material.
  • the expansion portion is integrally formed with the base portion thereof.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the basic portions of the two bonding components being bonded to have a substantially L-shaped cross section.
  • the structure, the expansion portions of the two bonding components extend toward the outer space of the sealing cavity and are bonded to each other, and the basic bonding layer and the extended bonding layer are in the same plane.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, and the base portion and the expansion portion of one of the bonding components are combined to have a cross section of substantially L a structure in which the base portion and the expanded portion of the other bonding assembly are combined into a substantially cross-sectional L-shaped structure having a substantially L-shaped cross section and a substantially inverted cross section
  • the shaped structures are bonded to each other such that the cross-section of the continuous bonding layers of the two bonding assemblies constitutes a substantially Z-shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing
  • the outer space of the cavity is in communication, or the expansion of the one of the bonding components is in communication with the sealing space of the sealing cavity.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding members are bonded to a structure having a substantially L-shaped cross section, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a flat plate structure, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The external space of the cavity is connected.
  • the base portions of the two bonding components are bonded to each other in a parallel and superposed structure, and the continuous bonding layers of the two bonding components are planar.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a structure having a substantially L-shaped cross section, and the continuous bonding layers of the two bonding members are planar.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding assemblies are bonded to a flat plate structure, and the cross-section of the continuous bonding layers of the two bonding members constitutes a substantially L shape.
  • one of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the expansion portion of one of the bonding components being smooth from the basic portion of the one of the bonding components a base portion extension of the other of the bonding components, and an extension of the one of the bonding components is bonded to a base portion of the other of the bonding components, and an extension of the one of the bonding components and the sealing The sealed space of the cavity is connected.
  • the base portions of the two bonding components are bonded to each other in a parallel and superposed structure, and the continuous bonding layers of the two bonding components are planar.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, and the base portion and the expansion portion of each bonding assembly are combined into a cross section of substantially L
  • the shape of the structure, the two substantially L-shaped structures are superimposed and bonded such that the cross-section of the continuous bonding layers of the two bonding components constitutes a substantially L shape.
  • each of the two bonding components bonded by the continuous bonding layer further has an expansion portion, the basic portions of the two bonding components being bonded to have a substantially L-shaped cross section. a structure; an extension of one of the bonding components is in communication with an outer space of the sealing cavity, and extends from a base of the one of the bonding components along a base of the other of the bonding components, and the other a base portion bonding of the bonding component; wherein the extension portion of the other bonding component is in communication with the sealing space of the sealing cavity, and bonding from the base portion of the other bonding component along the one of the bonding components
  • the base portion of the assembly extends and is bonded to the base portion of one of the bonding assemblies.
  • the application also provides a projection apparatus comprising any of the above-described optical modules with a sealed structure.
  • FIG. 2 is a cross-sectional view of an optical module with a sealing structure in an embodiment of the present application
  • FIG. 3 is an enlarged schematic structural view of a contact portion G1 of the cover case 250 and the bottom case 280 of FIG. 2;
  • FIG. 4 is an enlarged schematic structural view of the contact portion G2 of the cover case 250 and the light transmissive member 270 of FIG. 2;
  • FIG. 5 is a schematic structural view showing a contact portion of a first bonding component 510 and a second bonding component 520 in one embodiment of the present application;
  • FIG. 6 is a schematic structural view of a contact portion of a first bonding component 610 and a second bonding component 620 in one embodiment of the present application;
  • FIG. 7A is a schematic structural view showing a contact portion of the first bonding component 710 and the second bonding component 720 in one embodiment
  • FIG. 7B is a schematic structural view showing a contact portion of the first bonding component 710 and the second bonding component 720 in another embodiment
  • FIG. 8 is a schematic structural view showing a contact portion of the first bonding component 810 and the second bonding component 820 in one embodiment
  • FIG. 9 is a schematic view showing the structure of the contact portion of the first bonding member 910 and the second bonding member 920 in one embodiment.
  • an optical module with a sealed structure includes a sealed cavity 210, a light source 220, a cooling device 230, a power connector 240, and a desiccant 290.
  • the sealing cavity 210 internally forms a sealed space (ie, an internal space of the sealed cavity 210).
  • the light source 220, the cooling device 230, and the desiccant 290 are placed in a sealed space.
  • the sealing cavity 210 is formed by sealingly connecting the cover case 250, the adapter plate 260, the light transmitting member 270 and the bottom case 280.
  • a first opening A1 is defined in the cover shell 250.
  • the adapter plate 260 is sealingly bonded to the wall around the first opening A1 through the first continuous bonding layer B1, and the power connector 240 passes through the adapter plate 260, and
  • the light source 220 is electrically coupled for powering the light source 220.
  • the power connector 240 and the adapter plate 260 are welded and sealed by a solder material, and the thermal expansion coefficient of the adapter plate 260 is close to the thermal expansion coefficient of the solder material.
  • the cover case further has a second opening A2, the transparent member and the housing around the second opening are sealingly bonded by the second continuous bonding layer B2; the light source 220 is for emitting a light beam, and at least a part of the 270 transparent member It is a light transmitting body for the light beam to be emitted.
  • the cover case 250 is fastened to the bottom case 280, and the cover case 250 and the bottom case 280 are sealingly bonded by the third continuous adhesive layer B3.
  • the first continuous bonding layer B1 and the second continuous bonding layer B2 are annular; the specific shape of the ring of the first continuous bonding layer B1 is consistent with the shape of the first opening A1; the second continuous bonding The specific shape of the ring of the layer B2 coincides with the shape of the second opening A2.
  • the third continuous bonding layer B3 may be a circular ring shape, a square ring shape, a three-sided ring shape or a hexagonal ring shape, etc.; the specific shape of the ring shape of the third connection bonding layer B3 and the edge of the cover case 250 parallel to the bottom case 280 The shape of the cross section obtained by the cross-sectional cover 250 is identical.
  • the power connector 240 and the adapter plate 260 are welded and sealed by a solder material, and the thermal expansion coefficient of the adapter plate 260 is similar to the thermal expansion coefficient of the solder material, thereby affecting the thermal expansion and contraction, the solder material and the rotation.
  • the connecting plates 260 are not easily peeled off from each other to cause sealing failure, and the cover can still be made of a material having good thermal conductivity and light material, such as aluminum. Therefore, the optical module with a sealing structure of the embodiment can have good heat dissipation performance, and can avoid the problem of sealing failure caused by peeling of the welding material and the shell due to thermal expansion and contraction.
  • the sealing cavity 210 is formed by sealingly connecting the cover case 250, the adapter plate 260, the transparent member 270 and the bottom case 280, and the cover case 250 is fastened to the bottom case 280, and the assembly process is simple and easy.
  • the sealed cavity 210 can be designed to be spliced from more splicing components.
  • the viscose material of each of the successive bonding layers described above is continuously coated. In other words, there is no vacancy in the region bordering the outer edge and the inner edge of the continuous bonding layer without applying the adhesive material. Wherein, the inner edge communicates with the sealing space of the sealing cavity, and the outer edge communicates with the outer space of the sealing cavity.
  • the power connector is a conductive pin
  • the conductive pin is connected to the light source through a power supply line, and the conductive pin is soldered to the power supply line.
  • cooling device 230 and desiccant 290 may be omitted as needed.
  • each successive bonding layer of the first continuous bonding layer, the second continuous bonding layer, and the third continuous bonding layer includes an inner edge that communicates with a sealed space of the sealing cavity and An outer edge communicating with the outer space of the sealed cavity, and passing between any first point on the inner edge of the same continuous bonding layer and any second point on the outer edge
  • the shortest path length of the continuous bonding layer is greater than or equal to 7 mm. In the optical module with a sealing structure of this embodiment, since the shortest length of each continuous bonding layer reaches 7 mm, it has good waterproof sealing performance.
  • the leakage rate of the entire sealed cavity is not more than 10-8Pa*m3/s.
  • the area of the adapter plate 260 should be as small as possible, but suitable for bonding to the cover 250. In one embodiment, the area of the adapter plate 260 is at least suitable for a continuous bonding layer with the cover 250 that meets the 7 mm standard described above. Since the coefficient of thermal expansion of the adapter plate 260 is close to the coefficient of thermal expansion of the solder material, the adapter plate 260 is not suitable for selecting a material having good thermal conductivity and light weight (for example, aluminum); in this embodiment, the area of the adapter plate 260 is as small as possible. Therefore, a large area of the sealing cavity 10 does not have a material with poor thermal conductivity, which contributes to heat dissipation of the sealing cavity 10.
  • FIG. 3 is an enlarged schematic structural view of the contact portion G1 of the cover case 250 and the bottom case 280 of FIG.
  • the portion of the cover case 250 that is in contact with the bottom case 280 includes a base portion 2502 and an extension portion 2504, and a portion of the bottom case 280 that is in contact with the cover case 250 also includes a base portion 2802 and an extension portion 2804.
  • the base portion 2502 and the base portion 2802 are used to enclose the sealed space of the sealed cavity 210.
  • the base portion 2502 and the base portion 2802 are sealed and fixedly connected by a basic bonding layer B31.
  • the extension portion 2504 and the extension portion 2804 are sealed and fixedly connected by the expanded adhesive layer B32.
  • the expanded bonding layer B32 extends along the basic bonding layer B31.
  • the expanded adhesive layer B32 and the basic adhesive layer B31 constitute a third continuous adhesive layer B3.
  • the base portion 2502 and the base portion 2802 are bonded to a structure having a substantially L-shaped cross section, and the expanded portion 2504 and the expanded portion 2804 extend toward the outer space of the sealed cavity 210 and are bonded to each other, and the basic adhesive layer B31 and the extended adhesive layer are bonded. B32 is in the same plane.
  • the portion of the cover case 250 that is in contact with the light transmissive member 270 includes a base portion 2506 and an expanded portion 2508, and a portion of the light transmissive member 270 that is in contact with the cover case 250 includes a base portion 2702.
  • the base portion 2506 and the base portion 2702 are used to enclose the sealed space of the sealed cavity 210.
  • the base portion 2506 and the base portion 2702 are sealed and fixedly connected by a basic adhesive layer B21.
  • the expansion portion 2508 and the base portion 2702 are sealed and fixedly connected by the expanded adhesive layer B22.
  • the expanded bonding layer B22 extends along the basic bonding layer B21.
  • the expanded adhesive layer B22 and the basic adhesive layer B21 constitute a second continuous adhesive layer B2.
  • the extension 2508 extends from the base portion 2506 along the base portion 2702, and the extension portion 2508 is bonded to the base portion 2702, and the extension portion 2508 is in communication with the sealed space of the sealed cavity 210.
  • the base portion 2702 and the base portion 2506 are bonded to each other in a flat plate structure, and the cross section of the second continuous bonding layer B2 is formed in a substantially L shape.
  • the basic portion 2506 and the expanded portion 2508 are superimposed into a stepped structure in which the basic portion 2506 serves as an upper stage, and the expanded portion 2508 serves as a bottom stage, and the step surface L1 of the bottom stage and the step surface L2 of the upper stage pass through the joint surface.
  • L3 is connected, the connecting surface L3 forms an angle with the step surface L1: a step angle; the basic portion 2702 has a corner portion matching the step angle, and the two surfaces of the corner portion are respectively bonded to the step surface L1 and the connecting surface L3.
  • the structure of the contact portion of the cover case 250 and the adapter plate 260 is similar to the structure of the contact portion of the cover case 250 with the light transmitting member 270, except that the expanded portion communicates with the external space of the sealed cavity 210.
  • the structure of the contact portion between the cover case 250 and the adapter plate 260 can be obtained by rotating the structure of the contact portion of the cover case 250 and the light transmitting member 270 counterclockwise by 90 degrees.
  • the base portion and the extension portion may be interchanged.
  • the basic portion 2506 can be regarded as an extension portion
  • the extension portion 2508 can be regarded as a basic portion.
  • the structure for the contact portion of the cover case 250 and the adapter plate 260 is also similar, and the base portion and the extension portion are interchangeable.
  • FIG. 5 is a schematic view showing the structure of the contact portion of the first bonding member 510 and the second bonding member 520 in one embodiment. As shown in FIG.
  • the portion of the first bonding component 510 that is in contact with the second bonding component 520 includes a base portion 5102 and an expansion portion 5104, and the second bonding component 520 is in contact with the first bonding component 510.
  • the portion includes a base portion 5202 and an extension portion 5204; the base portion 5102 and the base portion 5202 are used to surround the sealed space of the sealed cavity 210.
  • the base portion 5102 and the expansion portion 5104 are combined into a structure having a substantially L-shaped cross section; the base portion 5202 and the expanded portion 5204 are combined into a substantially cross-sectional L-shaped structure; the first bonding member 510 has a substantially L-shaped cross section.
  • the structure and the structure of the second bonding component 520 having a substantially inverted L-shaped cross-section are mutually bonded, such that the cross-section of the continuous bonding layer between the first bonding component 510 and the second bonding component 520 is substantially Z shape.
  • FIG. 6 is a schematic view showing the structure of the contact portion of the first bonding member 610 and the second bonding member 620 in one embodiment.
  • the portion of the first bonding component 610 that is in contact with the second bonding component 620 includes a base portion 6102 and an expansion portion 6104, and the second bonding component 620 is in contact with the first bonding component 610.
  • the portion includes a base portion 6202; the base portion 6102 and the base portion 6202 are used to enclose a sealed space of the sealed cavity 210.
  • the extension portion 6104 extends from the base portion 6102 along the base portion 6202, and the extension portion 6104 is bonded to the base portion 6202; the extension portion 6104 is in communication with the outer space of the sealed cavity 210.
  • the base portion 6102 and the base portion 6202 are bonded to a structure having a substantially L-shaped cross section; a cross section of the continuous bonding layer between the first bonding member 610 and the second bonding member 620 constitutes a substantially L shape.
  • FIG. 7A is a schematic view showing the structure of the contact portion of the first bonding member 710 and the second bonding member 720 in one embodiment.
  • the portion of the first bonding component 710 that is in contact with the second bonding component 720 includes a base portion 7102 and an expansion portion 7104, and the second bonding component 720 is in contact with the first bonding component 710.
  • the portion includes a base portion 7202; the base portion 7102 and the base portion 7202 are used to surround the sealed space of the sealed cavity 210.
  • the extension portion 7104 extends from the base portion 7102 along the base portion 7202, and the extension portion 7104 is bonded to the base portion 7202, and the extension portion 7104 is in communication with the sealed space of the sealed cavity 210.
  • the base portion 7102 and the base portion 7202 are bonded to each other in a parallel and superimposed manner, and the continuous bonding layer between the first bonding member 710 and the second bonding member 720 is planar.
  • FIG. 7B is a schematic view showing the structure of the contact portion of the first bonding member 710 and the second bonding member 720 in another embodiment.
  • the portion of the first bonding component 710 that is in contact with the second bonding component 720 includes a base portion 7102
  • the portion of the second bonding component 720 that is in contact with the first bonding component 710 includes a base portion. 7202 and expansion portion 7204; the basic portion 7102 and the base portion 7202 are used to surround the sealed space of the sealed cavity 210.
  • the extension portion 7204 extends from the base portion 7202 along the base portion 7102, and the extension portion 7204 is bonded to the base portion 7102, and the extension portion 7204 is in communication with the outer space of the sealed cavity 210.
  • the base portion 7102 and the base portion 7202 are bonded to each other in a parallel and superimposed manner, and the continuous bonding layer between the first bonding member 710 and the second bonding member 720 is planar.
  • FIG. 8 is a schematic view showing the structure of the contact portion of the first bonding member 810 and the second bonding member 820 in one embodiment.
  • the portion of the first bonding component 810 that is in contact with the second bonding component 820 includes a base portion 8102 and an expansion portion 8104, and the second bonding component 820 is in contact with the first bonding component 810.
  • the portion includes a base portion 8202; the base portion 8102 and the base portion 8202 are used to surround the sealed space of the sealed cavity 210.
  • the expansion portion 8104 extends from the base portion 8102 along the base portion 8202, and the expansion portion 8104 is bonded to the base portion 8202, and the expansion portion 8104 is in communication with the sealed space of the sealing cavity 210.
  • the base portion 8102 and the base portion 8202 are bonded to each other in a substantially L-shaped cross section, and the continuous bonding layer between the first bonding member 810 and the second bonding member 820 is planar.
  • FIG. 9 is a schematic view showing the structure of the contact portion of the first bonding member 910 and the second bonding member 920 in one embodiment.
  • the portion of the first bonding component 910 that is in contact with the second bonding component 920 includes a base portion 9102 and an expansion portion 9104, and the second bonding component 920 is in contact with the first bonding component 910.
  • the portion includes a base portion 9202 and an extension portion 9204; the base portion 9102 and the base portion 9202 are used to surround the sealed space of the sealed cavity 210.
  • the base portion 9102 and the expanded portion 9104 are combined into a structure having a substantially L-shaped cross section; the base portion 9202 and the expanded portion 9204 are also combined into a structure having a substantially L-shaped cross section; the two substantially L-shaped structures are superimposed and bonded
  • the cross section of the continuous bonding layer between the first bonding component 910 and the second bonding component 920 is formed into a substantially L shape.
  • the basic portion 9102 and the expanded portion 9104 are combined into a structure having a substantially L-shaped cross section; the basic portion 9202 and the expanded portion 9204 are also combined into a structure having a substantially L-shaped cross section; the horizontal portion 9102 and the expanded portion 9104 are combined into a horizontal shape.
  • the cross section of the structure having a substantially L-shaped cross section has a first inner angle a1 and a first outer angle a2, and the sum of the first inner angle a1 and the first outer angle a2 is 360 degrees; the basic portion 9202 and the expanded portion 9204 are combined to have a cross section substantially
  • the cross section of the L-shaped structure has a second inner angle a3 and a second outer angle a4, and the sum of the second inner angle a3 and the second outer angle a4 is 360 degrees.
  • the two outer corner faces L4 and L5 forming the first outer corner a2 are respectively bonded to the two outer corner faces L6 and L7 forming the second inner corner a3; the continuous bonding between the first bonding member 910 and the second bonding member 920
  • the cross section of the layer constitutes a substantially L shape.
  • the base portion 9102 and the expanded portion 9104 are combined into a structure having a substantially L-shaped cross section; the base portion 9202 and the expanded portion 9204 are also combined into a structure having a substantially L-shaped cross section; the expanded portion 9204 and the outer space of the sealed cavity 210
  • the expansion portion 9204 extends from the basic portion 9202 along the basic portion 9102, and the expanded portion 9204 is bonded to the basic portion 9102; the expanded portion 9104 communicates with the sealed space of the sealed cavity 210, and the expanded portion 9104 is compliant with the basic portion 9102.
  • the base portion 9202 extends, and the expanded portion 9104 is bonded to the base portion 9202.
  • the light source 220 in any of the above-described optical modules with a sealed structure may be replaced with other optical devices, such as a spatial light modulator, an optical lens group, a wavelength conversion device, or a filter device.
  • a part of the wall of the sealing cavity is a light transmitting body.
  • the sealed cavity may have a first portion that belongs to the light transmissive body, and the first portion may serve both as an entrance for light and as an exit for light.
  • the sealed cavity may have a first portion belonging to the light transmitting body and a second portion belonging to the light transmitting body, wherein the first portion serves as an entrance of light and the second portion serves as an exit opening for light.
  • the expansion portion is integrally formed with the base portion thereof.
  • the present application also provides a projection apparatus comprising the optical module with a sealing structure according to any of the above embodiments.

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Abstract

一种带密封结构的光学模组，包括密封腔体（210），密封腔体（210）包括至少两个通过粘接密封固定连接的粘接组件（510，520，610，620，710，720，810，820，910，920），其中，每一粘接组件都具有基本部，两个基本部通过基本粘接层（B21，B31）密封固定连接，其中至少一个粘接组件还具有扩展部，扩展部通过扩展粘接层（B22，B32）与两个粘接组件中的另一个粘接组件密封连接。通过粘接两个粘接组件来装配密封腔体，操作简单易行；而且由于采用粘接而不采用焊接，因此可以选用导热性能好、材质轻的材料，从而可以具有良好的散热性能；另外，粘接组件具有扩展部，扩展部可用于增大两个粘接组件之间的粘接面积，从而获得较好的密封防水效果。

Description

密封结构的光学模组及投影设备 技术领域
本申请涉及光学领域，尤其涉及带密封结构的光学模组和投影设备。
 背景技术
应用在投影设备中的光源部件有相当一部分需要配套冷却设备（如半导体致冷器）。否则，光源部件的工作温度太高的话会降低光源部件的出光功率和工作寿命。但是使用冷却设备会带来一个问题，当环境温度比较高时，冷却设备的致冷温度可能会比环境温度低。光源部件被冷却设备冷却后的温度也可能比环境温度低。当环境湿度比较大时，比环温温度低的组件上就有可能凝水，凝水对光源部件会产生不良影响。
目前，常用的解决办法是把光源部件、冷却设备及其他相关设备密封在一个密闭腔体内，并保持腔体内部足够干燥。这样，即使光源部件、冷却设备等组件的工作温度比环温低，也不会有凝水附着在光源部件上。图1为密封腔体10的剖面图。如图1所示，密封腔体10由出光用光学部件101、壳体102、壳体103和壳体104以及图1中未示出的其它壳体围合而成。光源部件105和冷却设备106置于密封腔体10内，供电线107穿过壳体103，给光源部件供电。
围合成密封腔体10的各个组成部分的接触处需要密封，以及供电线107与壳体103的接触处需要密封。有时，为了减小需要密封的接触处，可以考虑将两个或两个以上组成部分制作成一体成型的整个结构件。但是，高度一体化的壳体有可能会给装配过程带来不便，例如不方便将光源部件和冷却设备等装配到密封腔体内，另外，高度一体化的壳体的成型在工艺上也会存在困难。实际设计过程中常常将密封腔体进行适当的拆分。
现有技术中，各个组成部分之间的接触处一般采用焊接密封，因为焊接的密封防水效果比较好，例如，若采用胶剂来粘接两个组成部分，由于水汽容易渗透胶剂，防水性能不好；以及一般采用玻璃焊料来填充供电线107与壳体103之间的空隙。
 技术问题
然而，由于密封腔体材料优选采用导热性能好、重量轻的材料，例如铝。而铝件焊接不方便，且对铝件进行焊接在工艺上存在困难。另外，由于铝件与玻璃焊料的热膨胀系统不同，由于热胀冷缩的影响，玻璃焊料与铝件之间的密封面可能会剥离而造成密封失效。
因此，密封腔体的重量指数、散热性能、装配方便性、密封性能之间可能会产生矛盾和冲突。
 技术解决方案
鉴于上述的问题，本申请提供一种带密封结构的光学模组以及一种投影设备。
一种带密封结构的光学模组，包括腔体、转接板、光源和电源连接器，其中：
所述腔体具有第一开口，所述转接板与所述第一开口周围的壁体通过第一连续粘接层密封粘接，所述腔体和所述转接板围合成密封腔体，所述密封腔体内部形成密封空间；
所述光源置于所述密封空间，用于发出光束，所述腔体的一部分壁体为透光体，以供所述光束射出；
所述电源连接器穿过所述转接板，并与所述光源电连接以用于给所述光源供电，所述电源连接器与所述转接板通过焊接材料焊接密封，所述转接板的热膨胀系数与所述焊接材料的热膨胀系数相近。
本实施例中，电源连接器与转接板通过焊接材料焊接密封，转接板进一步与腔体的第一开口周围的壁体密封粘接，转接板的热膨胀系数与焊接材料的热膨胀系数相近，从而在热胀冷缩的影响，焊接材料与转接板不容易相互剥离而造成密封失效，而盖壳依然可以选用导热性能好、材质轻的材料，例如铝等。从而本实施例的带密封结构的光学模组可以具有良好的散热性能，又可以避免因热胀冷缩导致焊接材料与壳体剥离而造成的密封失效的问题。
在一个实施例中，所述电源连接器为导电pin针，所述导电pin针与所述光源通过供电线连接，所述导电pin针与所述供电线焊接相连。
在一个实施例中，所述焊接材料为玻璃焊料。
在一个实施例中，所述腔体由盖壳、底壳和透光部件密封连接构成，所述透光部件的一部分为供所述光束射出的所述透光体；所述第一开口开设于所述盖壳上，且所述盖壳还具有第二开口，所述透光部件与所述第二开口周围的壳体通过第二连续粘接层密封粘接；所述盖壳扣合在所述底壳上，所述盖壳和所述底壳通过第三连续粘接层密封粘接。本实施例中，腔体由盖壳、底壳和透光部件密封连接构成，装配过程操作简单方便。
在一个实施例中，所述第一连续粘接层、第二连续粘接层和第三连续粘接层的每一连续粘接层包含与所述密封腔体的密封空间相通的内部边缘和与所述密封腔体的外部空间相通的外部边缘，且属于同一所述连续粘接层的所述内部边缘上任意的第一点与所述外部边缘上任意的第二点之间的途经该连续粘接层的最短路径长度大于等于7mm。本实施例的带密封结构的光学模组，由于各连续粘接层伸展的最短长度达到7mm，其具备良好的防水密封性能。经过测试，可以满足高标准的防水密封：按产品在35℃以及90%湿度的环境下使用十年，漏入的水气不超过干燥剂的吸水量计算，整个密封腔体的漏率不大于10-8Pa*m3/s。
在一个实施例中，所述第一连续粘接层、第二连续粘接层和第三连续粘接层中具有至少一连续粘接层，该连续粘接层所粘接的两个粘接组件中，每一粘接组件都具有用于围合成所述密封空间的基本部，该两个基本部通过基本粘接层密封固定连接，所述两个粘接组件中至少一个粘接组件还具有扩展部，所述扩展部通过扩展粘接层与所述两个粘接组件中的另一个粘接组件密封连接，所述扩展粘接层沿所述基本粘接层延伸，所述扩展粘接层和所述基本粘接层构成该两个粘接组件之间的所述连续粘接层。本实施例中，扩展部可用于扩展两个粘接组件之间的粘接面积。
在一个实施例中，对于具有扩展部的所述粘接组件，其扩展部与其基本部一体成型。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的扩展部往所述密封腔体的外部空间延伸且相互粘接，所述基本粘接层与所述扩展粘接层处于同一平面。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且其中一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，其中另一个粘接组件的基本部和扩展部组合成横截面大致为倒L形状的结构，该两个粘接组件的横截面大致为L形状的结构和横截面大致为倒L形状的结构相互配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致Z形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通，或者该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成平板结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成相互平行且叠加的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成平板结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成相互平行且叠加的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且每一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，该两个大致为L形状的结构叠加配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一个粘接组件都还具有扩展部，该两个粘接组件的基本部粘接成横截面大致为L形状的结构；其中一个粘接组件的扩展部与所述密封腔体的外部空间相通、且自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸、并与该其中另一个粘接组件的基本部粘接；该其中另一个粘接组件的扩展部与所述密封腔体的密封空间相通、且自该其中另一个粘接组件的基本部顺着该其中一个粘接组件的基本部延伸、并与该其中一个粘接组件的基本部粘接。
一种带密封结构的光学模组，包括密封腔体和光学器件，其中：所述密封腔体由两个或两个以上拼接组件密封连接构成，所述密封腔体内部形成密封空间；所述密封腔体的一部分壁体为透光体，以供光束通过于所述密封腔体的密封空间与所述密封腔体的外部空间之间，所述光学器件置于所述密封空间；所述拼接组件包括至少两个粘接组件，所述两个粘接组件通过粘接密封固定连接，所述两个粘接组件的每一粘接组件都具有用于围合成所述密封空间的基本部，该两个基本部通过基本粘接层密封固定连接，所述两个粘接组件中至少一个粘接组件还具有扩展部，所述扩展部通过扩展粘接层与所述两个粘接组件中的另一个粘接组件密封连接，所述扩展粘接层沿所述基本粘接层延伸，所述扩展粘接层和所述基本粘接层构成该两个粘接组件之间的连续粘接层。
本实施例中，通过粘接两个粘接组件来装配密封腔体，操作简单易行；而且由于采用粘接而不采用焊接，因此可以选用导热性能好、材质轻的材料，例如铝等，从而本实施例的带密封结构的光学模组可以具有良好的散热性能；另外，粘接组件具有扩展部，扩展部可用于增大两个粘接组件之间的粘接面积，从而获得较好的密封防水效果。
在一个实施例中，所述密封腔体由盖壳、底壳和至少一个透光部件密封连接构成，所述盖壳扣合在所述底壳上，所述盖壳和所述底壳通过一连续粘接层密封粘接；所述盖壳和所述底壳中的一个或两个上开设有开口，所述盖壳和所述底壳上开设的开口的总量与所述透光部件的数量相同且所述开口与所述透光部件一一对应，所述透光部件与其对应的开口周围的壳体通过一连续粘接层密封粘接。本实施例中，密封腔体由盖壳、底壳和透光部件密封连接构成，装配过程简单易行。
在一个实施例中，密封腔体包括一个透光部件，该一个透光部件作为光的入射口以及作为光的出射口。
在一个实施例中，密封腔体包括两个透光部件，其中一个透光部件作为光的入射口，另一个透光部件作为光的出射口。
在一个实施例中，所述连续粘接层包含与所述密封结构的所述密封空间相通的内部边缘和与所述密封结构的外部空间相通的外部边缘；所述内部边缘上任意的第一点与所述外部边缘上任意的第二点之间的途经所述连续粘接层的最短路径长度大于等于7mm。本实施例的带密封结构的光学模组，由于连续粘接层伸展的最短长度达到7mm，其具备良好的防水密封性能。经过测试，可以满足高标准的防水密封：按产品在35℃以及90%湿度的环境下使用十年，漏入的水气不超过干燥剂的吸水量计算，整个密封腔体的漏率不大于10-8Pa*m3/s。
在一个实施例中，所述光学器件为用电器件，所述带密封结构的模组还包括电源连接器，所述电源连接器与所述用电器件电连接以用于给所述用电器件供电；所述电源连接器穿过一所述粘接组件，所述电源连接器与该粘接组件通过焊接材料焊接密封，该粘接组件的热膨胀系数与所述焊接材料的热膨胀系数相近。
在一个实施例中，对于具有扩展部的所述粘接组件，其扩展部与其基本部一体成型。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的扩展部往所述密封腔体的外部空间延伸且相互粘接，所述基本粘接层与所述扩展粘接层处于同一平面。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且其中一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，其中另一个粘接组件的基本部和扩展部组合成横截面大致为倒L形状的结构，该两个粘接组件的横截面大致为L形状的结构和横截面大致为倒L形状的结构相互配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致Z形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通，或者该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成平板结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通。该两个粘接组件的基本部粘接成相互平行且叠加的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成平板结构，该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。该两个粘接组件的基本部粘接成相互平行且叠加的结构，该两个粘接组件的连续粘接层为平面状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且每一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，该两个大致为L形状的结构叠加配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致L形状。
在一个实施例中，通过连续粘接层粘接的两个粘接组件的每一个粘接组件都还具有扩展部，该两个粘接组件的基本部粘接成横截面大致为L形状的结构；其中一个粘接组件的扩展部与所述密封腔体的外部空间相通、且自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸、并与该其中另一个粘接组件的基本部粘接；该其中另一个粘接组件的扩展部与所述密封腔体的密封空间相通、且自该其中另一个粘接组件的基本部顺着该其中一个粘接组件的基本部延伸、并与该其中一个粘接组件的基本部粘接。
 有益效果
本申请还提供一种投影设备，包括上述任一的带密封结构的光学模组。
附图说明
图1为现有技术中的一种光源模组；
图2为本申请一个实施例中的带密封结构的光学模组的剖面图；
图3为图2中的盖壳250与底壳280的接触部分G1的扩大的结构示意图；
图4为图2中盖壳250与透光部件270的接触部分G2的扩大的结构示意图；
图5示出了本申请一个实施例中的第一粘接组件510和第二粘接组件520的接触部分的结构示意图；
图6示出了本申请一个实施例中的第一粘接组件610和第二粘接组件620的接触部分的结构示意图；
图7A示出了一个实施例中的第一粘接组件710和第二粘接组件720的接触部分的结构示意图；
图7B示出了另一个实施例中的第一粘接组件710和第二粘接组件720的接触部分的结构示意图；
图8示出了一个实施例中的第一粘接组件810和第二粘接组件820的接触部分的结构示意图；
图9示出了一个实施例中的第一粘接组件910和第二粘接组件920的接触部分的结构示意图。
 本发明的最佳实施方式
下面通过具体实施方式结合附图对本申请作进一步详细说明。本申请可以以多种不同的形式来实现，并不限于本实施例所描述的实施方式。提供以下具体实施方式的目的是便于对本申请公开内容更清楚透彻的理解。本领域的技术人员可能会意识到其中的一个或多个的具体细节描述可以被省略，或者还可以采用其他的方法、组件或材料。此外，本文中记载的技术特征、技术方案还可以在一个或多个实施例中以任意合适的方式组合。本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。
图2为一个实施例中的带密封结构的光学模组的剖面图。如图2所示，在一个实施例中，一种带密封结构的光学模组，包括密封腔体210、光源220、冷却设备230、电源连接器240以及干燥剂290。所述密封腔体210内部形成密封空间（即密封腔体210的内部空间）。光源220、冷却设备230和干燥剂290置于密封空间中。密封腔体210由盖壳250、转接板260、透光部件270和底壳280密封连接构成。盖壳250上开设有第一开口A1，转接板260与第一开口A1周围的壁体通过第一连续粘接层B1密封粘接，电源连接器240穿过所述转接板260，并与所述光源220电连接以用于给所述光源220供电。所述电源连接器240与所述转接板260通过焊接材料焊接密封，所述转接板260的热膨胀系数与所述焊接材料的热膨胀系数相近。盖壳还具有第二开口A2，所述透光部件与所述第二开口周围的壳体通过第二连续粘接层B2密封粘接；光源220用于发出光束，270透光部件的至少一部分为透光体，以供光束射出。盖壳250扣合在底壳280上，盖壳250和底壳280通过第三连续粘接层B3密封粘接。
本实施例中，第一连续粘接层B1和第二连续粘接层B2为环形；第一连续粘接层B1的环形的具体形状与第一开口A1的形状相一致；第二连续粘接层B2的环形的具体形状与第二开口A2的形状相一致。第三连续粘接层B3可以是圆环形、方环形、三边环形或六边环形等等；第三连接粘接层B3的环形的具体形状与盖壳250的沿平行于底壳280的面横截盖壳250得到的横截面的形状相一致。
本实施例中，电源连接器240与所述转接板260通过焊接材料焊接密封，转接板260的热膨胀系数与焊接材料的热膨胀系数相近，从而在热胀冷缩的影响，焊接材料与转接板260不容易相互剥离而造成密封失效，而盖壳依然可以选用导热性能好、材质轻的材料，例如铝等。从而本实施例的带密封结构的光学模组可以具有良好的散热性能，又可以避免因热胀冷缩导致焊接材料与壳体剥离而造成的密封失效的问题。
本实施例中，密封腔体210由盖壳250、转接板260、透光部件270和底壳280密封连接构成，盖壳250扣合在底壳280上，装配过程简单易行。在其它实施例中，密封腔体210可以设计成由更多的拼接组件拼接而成。
在一个实施例中，上述各连续粘接层的粘胶材料是连续涂覆的。换言之，以连续粘接层的外部边缘和内部边缘为边界的区域内不具有不涂覆粘胶材料的空缺。其中，内部边缘与密封腔体的密封空间相通，外部边缘与密封腔体的外部空间相通。
在一个实施例中，电源连接器为导电pin针，导电pin针与所述光源通过供电线连接，所述导电pin针与供电线焊接相连。
在一个实施例中，冷却设备230和干燥剂290的一种或两种可以根据实际需求而省略。
在一个实施例中，所述第一连续粘接层、第二连续粘接层和第三连续粘接层的每一连续粘接层包含与所述密封腔体的密封空间相通的内部边缘和与所述密封腔体的外部空间相通的外部边缘，且属于同一所述连续粘接层的所述内部边缘上任意的第一点与所述外部边缘上任意的第二点之间的途经该连续粘接层的最短路径长度大于等于7mm。本实施例的带密封结构的光学模组，由于各连续粘接层伸展的最短长度达到7mm，其具备良好的防水密封性能。经过测试，可以满足高标准的防水密封：按产品在35℃以及90%湿度的环境下使用十年，漏入的水气不超过干燥剂的吸水量计算，整个密封腔体的漏率不大于10-8Pa*m3/s。
在一个实施例中，转接板260的面积应尽可能小，但需适用于与盖壳250粘接。在一个实施例中，转接板260的面积至少适用于与盖壳250之间的连续粘接层满足上述的7mm的标准。由于转接板260的热膨胀系数与焊接材料的热膨胀系数相近，转接板260不适于选择导热性能好且重量轻的材料（例如铝）；本实施例中，转接板260的面积尽可能小，从而密封腔体10的组成部分中不会有大面积区域为导热性能不好的材料，有助于密封腔体10的散热。
图3为图2中的盖壳250与底壳280的接触部分G1的扩大的结构示意图。如图3所示，盖壳250的与底壳280相接触的部分包括基本部2502和扩展部2504，以及底壳280的与盖壳250相接触的部分也包括基本部2802和扩展部2804。基本部2502和基本部2802用于围合成密封腔体210的密封空间。基本部2502和基本部2802通过基本粘接层B31密封固定连接。扩展部2504和扩展部2804通过扩展粘接层B32密封固定连接。该扩展粘接层B32沿该基本粘接层B31延伸。该扩展粘接层B32和该基本粘接层B31构成第三连续粘接层B3。
基本部2502和基本部2802粘接成横截面大致为L形状的结构，扩展部2504和扩展部2804往密封腔体210的外部空间延伸且相互粘接，基本粘接层B31与扩展粘接层B32处于同一平面。
图4为图2中盖壳250与透光部件270的接触部分G2的扩大的结构示意图。如图4所示，盖壳250的与透光部件270相接触的部分包括基本部2506和扩展部2508，以及透光部件270的与盖壳250相接触的部分包括基本部2702。基本部2506和基本部2702用于围合成密封腔体210的密封空间。基本部2506和基本部2702通过基本粘接层B21密封固定连接。扩展部2508和基本部2702通过扩展粘接层B22密封固定连接。该扩展粘接层B22沿该基本粘接层B21延伸。该扩展粘接层B22和该基本粘接层B21构成第二连续粘接层B2。扩展部2508自基本部2506并顺着基本部2702延伸，且扩展部2508与基本部2702粘接，以及扩展部2508与密封腔体210的密封空间相通。基本部2702与基本部2506粘接成平板结构，第二连续粘接层B2的横截面构成大致L形状。
换言之，基本部2506和扩展部2508叠加成阶梯状结构，其中基本部2506作为上层阶台，扩展部2508作为底层阶台，底层阶台的阶台面L1与上层阶台的阶台面L2通过连接面L3连接，连接面L3与阶台面L1形成一夹角：阶梯角；基本部2702具有与阶梯角相配合的角部，角部的两个面分别与阶台面L1和连接面L3粘接。
盖壳250和转接板260接触部分的结构与盖壳250与透光部件270的接触部分的结构类似，不同的是扩展部与密封腔体210的外部空间相通。实际上盖壳250和转接板260接触部分的结构可以将盖壳250与透光部件270的接触部分的结构逆时针旋转90度而得到。
对于盖壳250与透光部件270的接触部分G2，基本部和扩展部可以互换。例如基本部2506可以看作是扩展部，以及扩展部2508可以看作是基本部。对于盖壳250和转接板260接触部分的结构也类似，基本部和扩展部可以互换。
盖壳250与底壳280的接触部分的结构、盖壳250与透光部件270的接触部分的结构；盖壳250和转接板260接触部分的结构不限于图2所示的结构。相粘接的两个粘接组件的接触部分的结构可以与下述各实施例所述的第一粘接组件和第二粘接组件的接触部分的结构相类似。图5示出了一个实施例中的第一粘接组件510和第二粘接组件520的接触部分的结构示意图。如图5所示，第一粘接组件510的与第二粘接组件520相接触的部分包括基本部5102和扩展部5104，第二粘接组件520的与第一粘接组件510相接触的部分包括基本部5202和扩展部5204；基本部5102和基本部5202用于围合成密封腔体210的密封空间。基本部5102和扩展部5104组合成横截面大致为L形状的结构；基本部5202和扩展部5204组合成横截面大致为倒L形状的结构；第一粘接组件510的横截面大致为L形状的结构和第二粘接组件520的横截面大致为倒L形状的结构相互配合粘接，使得第一粘接组件510和第二粘接组件520之间的连续粘接层的横截面构成大致Z形状。
图6示出了一个实施例中的第一粘接组件610和第二粘接组件620的接触部分的结构示意图。如图6所示，第一粘接组件610的与第二粘接组件620相接触的部分包括基本部6102和扩展部6104，第二粘接组件620的与第一粘接组件610相接触的部分包括基本部6202；基本部6102和基本部6202用于围合成密封腔体210的密封空间。扩展部6104自基本部6102顺着基本部6202延伸，且扩展部6104与基本部6202粘接；扩展部6104与密封腔体210的外部空间相通。基本部6102和基本部6202粘接成横截面大致为L形状的结构；第一粘接组件610和第二粘接组件620之间的连续粘接层的横截面构成大致L形状。
图7A示出了一个实施例中的第一粘接组件710和第二粘接组件720的接触部分的结构示意图。如图7A所示，第一粘接组件710的与第二粘接组件720相接触的部分包括基本部7102和扩展部7104，第二粘接组件720的与第一粘接组件710相接触的部分包括基本部7202；基本部7102和基本部7202用于围合成密封腔体210的密封空间。扩展部7104自基本部7102顺着基本部7202延伸，且扩展部7104与基本部7202粘接，以及扩展部7104与密封腔体210的密封空间相通。基本部7102与基本部7202粘接成相互平行且叠加的结构，第一粘接组件710与第二粘接组件720之间的连续粘接层为平面状。
图7B示出了另一个实施例中的第一粘接组件710和第二粘接组件720的接触部分的结构示意图。如图7B所示，第一粘接组件710的与第二粘接组件720相接触的部分包括基本部7102，第二粘接组件720的与第一粘接组件710相接触的部分包括基本部7202和扩展部7204；基本部7102和基本部7202用于围合成密封腔体210的密封空间。扩展部7204自基本部7202顺着基本部7102延伸，且扩展部7204与基本部7102粘接，以及扩展部7204与密封腔体210的外部空间相通。基本部7102与基本部7202粘接成相互平行且叠加的结构，第一粘接组件710与第二粘接组件720之间的连续粘接层为平面状。
图8示出了一个实施例中的第一粘接组件810和第二粘接组件820的接触部分的结构示意图。如图8所示，第一粘接组件810的与第二粘接组件820相接触的部分包括基本部8102和扩展部8104，第二粘接组件820的与第一粘接组件810相接触的部分包括基本部8202；基本部8102和基本部8202用于围合成密封腔体210的密封空间。扩展部8104自基本部8102顺着基本部8202延伸，且扩展部8104与基本部8202粘接，以及扩展部8104与密封腔体210的密封空间相通。基本部8102和基本部8202粘接成横截面大致为L形状的结构，第一粘接组件810和第二粘接组件820之间的连续粘接层为平面状。
图9示出了一个实施例中的第一粘接组件910和第二粘接组件920的接触部分的结构示意图。如图9所示，第一粘接组件910的与第二粘接组件920相接触的部分包括基本部9102和扩展部9104，第二粘接组件920的与第一粘接组件910相接触的部分包括基本部9202和扩展部9204；基本部9102和基本部9202用于围合成密封腔体210的密封空间。基本部9102和扩展部9104组合成横截面大致为L形状的结构；基本部9202和扩展部9204也组合成横截面大致为L形状的结构；该两个大致为L形状的结构叠加配合粘接，使得第一粘接组件910的与第二粘接组件920之间的连续粘接层的横截面构成大致L形状。
换言之，基本部9102和扩展部9104组合成横截面大致为L形状的结构；基本部9202和扩展部9204也组合成横截面大致为L形状的结构；基本部9102和扩展部9104组合成的横截面大致为L形状的结构的横截面具有第一内角a1和第一外角a2，第一内角a1和第一外角a2的和为360度；基本部9202和扩展部9204组合成的横截面大致为L形状的结构的横截面具有第二内角a3和第二外角a4，第二内角a3和第二外角a4的和为360度。形成第一外角a2的两个外角面L4和L5分别与形成第二内角a3的两个外角面L6和L7粘接；第一粘接组件910和第二粘接组件920之间的连续粘接层的横截面构成大致L形状。
换言之，基本部9102和扩展部9104组合成横截面大致为L形状的结构；基本部9202和扩展部9204也组合成横截面大致为L形状的结构；扩展部9204与密封腔体210的外部空间相通，且扩展部9204自基本部9202顺着基本部9102延伸、扩展部9204与基本部9102粘接；扩展部9104与密封腔体210的密封空间相通，且扩展部9104自该基本部9102顺着基本部9202延伸，且扩展部9104与基本部9202粘接。
在一个实施例中，上述任一的带密封结构的光学模组中的光源220可以替换成其它的光学器件，例如，空间光调制器、光学透镜组、波长转换装置或滤光装置等。本实施例中，密封腔体的一部分壁体为透光体。密封腔体可以具有属于透光体的第一部分，该第一部分可以既作为光的入射口又作为光的出射口。另外，密封腔体可以具有属于透光体的第一部分以及属于透光体的第二部分，其中第一部分作为光的入射口，第二部分作为光的出射口。
在一个实施例中，对于包括基本部和扩展部的粘接组件，其扩展部与其基本部一体成型。
本申请还提供一种投影设备，包括上述任一实施例所述的带密封结构的光学模组。
以上内容是结合具体的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请发明构思的前提下，还可以做出若干简单推演或替换。

Claims (15)

  1. 1、一种带密封结构的光学模组，其特征在于，包括腔体、转接板、光源和电源连接器，其中：
    所述腔体具有第一开口，所述转接板与所述第一开口周围的壁体通过第一连续粘接层密封粘接，所述腔体和所述转接板围合成密封腔体，所述密封腔体内部形成密封空间；
    所述光源置于所述密封空间，用于发出光束，所述腔体的一部分壁体为透光体，以供所述光束射出；
    所述电源连接器穿过所述转接板，并与所述光源电连接以用于给所述光源供电，所述电源连接器与所述转接板通过焊接材料焊接密封，所述转接板的热膨胀系数与所述焊接材料的热膨胀系数相近。
  2. 2、根据所述权利要求1所述的带密封结构的光学模组，其特征在于，所述电源连接器为导电pin针，所述导电pin针与所述光源通过供电线连接，所述导电pin针与所述供电线焊接相连。
  3. 3、根据权利要求1所述的带密封结构的光学模组，其特征在于，所述焊接材料为玻璃焊料。
  4. 4、根据权利要求1所述的带密封结构的光学模组，其特征在于，所述腔体由盖壳、底壳和透光部件密封连接构成，所述透光部件的一部分为供所述光束射出的所述透光体；
    所述第一开口开设于所述盖壳上，且所述盖壳还具有第二开口，所述透光部件与所述第二开口周围的壳体通过第二连续粘接层密封粘接；
    所述盖壳扣合在所述底壳上，所述盖壳和所述底壳通过第三连续粘接层密封粘接。
  5. 5、根据权利要求4所述的带密封结构的光学模组，其特征在于，
    所述第一连续粘接层、第二连续粘接层和第三连续粘接层的每一连续粘接层包含与所述密封腔体的密封空间相通的内部边缘和与所述密封腔体的外部空间相通的外部边缘，且属于同一所述连续粘接层的所述内部边缘上任意的第一点与所述外部边缘上任意的第二点之间的途经该连续粘接层的最短路径长度大于等于7mm。
  6. 6、根据权利要求5所述的带密封结构的光学模组，其特征在于，所述第一连续粘接层、第二连续粘接层和第三连续粘接层中具有至少一连续粘接层，该连续粘接层所粘接的两个粘接组件中，每一粘接组件都具有用于围合成所述密封空间的基本部，该两个基本部通过基本粘接层密封固定连接，所述两个粘接组件中至少一个粘接组件还具有扩展部，所述扩展部通过扩展粘接层与所述两个粘接组件中的另一个粘接组件密封连接，所述扩展粘接层沿所述基本粘接层延伸，所述扩展粘接层和所述基本粘接层构成该两个粘接组件之间的所述连续粘接层。
  7. 7、一种带密封结构的光学模组，其特征在于，包括密封腔体和光学器件，其中：
    所述密封腔体由两个或两个以上拼接组件密封连接构成，所述密封腔体内部形成密封空间；
    所述密封腔体的一部分壁体为透光体，以供光束通过于所述密封腔体的密封空间与所述密封腔体的外部空间之间，所述光学器件置于所述密封空间；
    所述拼接组件包括至少两个粘接组件，所述两个粘接组件通过粘接密封固定连接，所述两个粘接组件的每一粘接组件都具有用于围合成所述密封空间的基本部，该两个基本部通过基本粘接层密封固定连接，所述两个粘接组件中至少一个粘接组件还具有扩展部，所述扩展部通过扩展粘接层与所述两个粘接组件中的另一个粘接组件密封连接，所述扩展粘接层沿所述基本粘接层延伸，所述扩展粘接层和所述基本粘接层构成该两个粘接组件之间的连续粘接层。
  8. 8、根据权利要求7所述的带密封结构的光学模组，其特征在于，所述连续粘接层包含与所述密封结构的所述密封空间相通的内部边缘和与所述密封结构的外部空间相通的外部边缘；
    所述内部边缘上任意的第一点与所述外部边缘上任意的第二点之间的途经所述连续粘接层的最短路径长度大于等于7mm。
  9. 9、根据权利要求7所述的带密封结构的光学模组，其特征在于，所述光学器件为用电器件，所述带密封结构的光学模组还包括电源连接器，所述电源连接器与所述用电器件电连接以用于给所述用电器件供电；
    所述电源连接器穿过一所述粘接组件，所述电源连接器与该粘接组件通过焊接材料焊接密封，该粘接组件的热膨胀系数与所述焊接材料的热膨胀系数相近。
  10. 10、根据权利要求6或7所述的带密封结构的光学模组，其特征在于，对于具有扩展部的所述粘接组件，其扩展部与其基本部一体成型。
  11. 11、根据权利要求6或7所述的带密封结构的光学模组，其特征在于，通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，该两个粘接组件的基本部粘接成横截面大致为L形状的结构，该两个粘接组件的扩展部往所述密封腔体的外部空间延伸且相互粘接，所述基本粘接层与所述扩展粘接层处于同一平面。
  12. 12、根据权利要求6或7所述的带密封结构的光学模组，其特征在于，
    通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且其中一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，其中另一个粘接组件的基本部和扩展部组合成横截面大致为倒L形状的结构，该两个粘接组件的横截面大致为L形状的结构和横截面大致为倒L形状的结构相互配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致Z形状。
  13. 13、根据权利要求6或7所述的带密封结构的光学模组，其特征在于，通过连续粘接层粘接的两个粘接组件的其中一个粘接组件还具有扩展部，该其中一个粘接组件的扩展部自该其中一个粘接组件的基本部顺着其中另一个粘接组件的基本部延伸，且该其中一个粘接组件的扩展部与该其中另一个粘接组件的基本部粘接，以及该其中一个粘接组件的扩展部与所述密封腔体的外部空间相通，或者该其中一个粘接组件的扩展部与所述密封腔体的密封空间相通。
  14. 14、根据权利要求6或7所述的带密封结构的光学模组，其特征在于，
    通过连续粘接层粘接的两个粘接组件的每一粘接组件都还具有扩展部，且每一个粘接组件的基本部和扩展部组合成横截面大致为L形状的结构，该两个大致为L形状的结构叠加配合粘接，使得该两个粘接组件的连续粘接层的横截面构成大致L形状。
  15. 15、一种投影设备，其特征在于，包括如权利要求1至14任一所述的带密封结构的光学模组。
PCT/CN2017/088618 2016-12-07 2017-06-16 密封结构的光学模组及投影设备 WO2018103292A1 (zh)

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