CN220674250U - Optical box thermal management device - Google Patents
Optical box thermal management device Download PDFInfo
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- CN220674250U CN220674250U CN202322284486.3U CN202322284486U CN220674250U CN 220674250 U CN220674250 U CN 220674250U CN 202322284486 U CN202322284486 U CN 202322284486U CN 220674250 U CN220674250 U CN 220674250U
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- 238000009434 installation Methods 0.000 claims abstract description 31
- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
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- 238000010438 heat treatment Methods 0.000 claims description 29
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a thermal management device of an optical box, which is used for controlling the temperature of the optical box, the optical box comprises an optical substrate, an optical antenna arranged on the optical substrate, a first installation area and a second installation area, and the thermal management device of the optical box comprises: the active thermal control assembly is attached to the outer surfaces of the optical substrate and the optical antenna so as to heat the optical substrate and the optical antenna and adjust the temperature of the optical box component; the passive thermal control assembly comprises a multi-layer heat insulation unit and a radiation heat dissipation unit, wherein the multi-layer heat insulation unit is attached to the first installation area to insulate and preserve heat of the optical box, the radiation heat dissipation unit is attached to the second installation area to dissipate heat of the optical box, and the multi-layer heat insulation unit and the radiation heat dissipation unit jointly cover the optical box. The technical scheme of the utility model solves the technical problem that the temperature control of the optical box in the existing inter-satellite laser communication terminal is difficult.
Description
Technical Field
The utility model relates to the technical field of aerospace, in particular to an optical box heat management device.
Background
With the continuous increase of the current satellite communication demand, the satellite communication bandwidth is also increasingly required, and in order to meet the demand, the satellite laser communication technology is increasingly widely applied.
In the existing satellite communication technology, a laser terminal optical box is core equipment, the communication capacity and the communication quality are directly affected, the optical box is generally composed of an optical antenna, a rear optical path module and a signal transmitting and receiving module, the matching among all components of the optical box is precise, very small external environment factors can affect the optical path of the optical box, the influence of the thermoelastic deformation of an optical box lens group mounting platform is an important ring, the optical box is located outside a cabin of a satellite and is completely exposed outside the cabin and affected by external heat flow, the temperature difference of all the surfaces is large, the optical components of the optical box are complex, the structure is compact, the thermally implementable space is small, and the temperature level and stability control of the optical box are difficult.
Disclosure of Invention
The utility model mainly aims to provide an optical box heat management device, which aims to solve the technical problem that the temperature control of an optical box in the existing inter-satellite laser communication terminal is difficult
In order to achieve the above object, the present utility model provides an optical box thermal management device for controlling temperature of an optical box, the optical box including an optical substrate and an optical antenna disposed on the optical substrate, the optical box further having a first mounting area and a second mounting area, the optical box thermal management device comprising:
the active thermal control assembly is attached to the outer surfaces of the optical substrate and the optical antenna so as to heat the optical substrate and the optical antenna and adjust the temperature of different parts of the optical box;
the passive thermal control assembly comprises a multilayer heat insulation unit and a radiation heat dissipation unit, wherein the multilayer heat insulation unit is attached to the first installation area to insulate heat and keep warm of the optical box, the radiation heat dissipation unit is attached to the second installation area to dissipate heat of the optical box, and the multilayer heat insulation unit and the radiation heat dissipation unit jointly cover the optical box.
Optionally, the multi-layered heat insulation unit includes:
the first reflecting film is attached to the outer surface of the optical box and used for reflecting heat radiation of the optical box and the space environment, and a plurality of layers of the first reflecting film are arranged;
and the isolating films are arranged between every two first reflecting films and are used for insulating heat between the two first reflecting films.
Optionally, the isolation film is a terylene net towel; and/or the first reflecting film is an aluminized polyester film.
Optionally, the multi-layer heat insulation unit further comprises a protective film attached to the inner and outer surfaces of the multi-layer heat insulation unit.
Optionally, the protective film is a polyimide film.
Optionally, the material of the radiation radiating unit is S781 white paint.
Optionally, the active thermal control assembly includes a thin film heater attached to the outer surfaces of the optical substrate and the optical antenna to heat the optical substrate and the optical antenna.
Optionally, the thin film heater includes:
a first insulating film for attaching to the outer surfaces of the optical antenna and the optical substrate;
a first heating wire attached to one side of the first insulating film;
and the second insulating film is attached to one side of the first heating wire and matched with the first insulating film to seal the first heating wire.
Optionally, the second insulating film and the first heating wire are alternately arranged in multiple layers; and/or the thin film heater further comprises a second reflecting film, wherein the second reflecting film is attached to the outer side of the second insulating film and is used for reflecting heat radiation of the thin film heater and the space environment; and/or the thin film heater is arranged on the optical substrate at intervals; and/or, the active thermal control assembly further comprises: the first temperature sensor is attached to the optical substrate, and the second temperature sensor is attached to the optical antenna.
Compared with the prior art, in the technical scheme of the utility model, the optical box heat management device comprises the active heat control component and the passive heat control component, wherein the optical box comprises an optical substrate and an optical antenna arranged on the optical substrate, the optical box is further provided with a first installation area and a second installation area, the active heat control component is attached to the outer surfaces of the optical substrate and the optical antenna and heats the optical substrate and the optical antenna, and the active heat control component is used for controlling the temperature, so that the surface temperature of the optical box is prevented from being too low, the temperature change amplitude of the optical box is reduced, and the working reliability and the working precision of the optical box are guaranteed. In addition, this passive thermal control subassembly contains multilayer thermal-insulated unit and radiation radiating element, multilayer thermal-insulated unit is attached in the first installation district of optical box, with the first installation district and the external environment thermal isolation of this optical box, radiation radiating element is attached in the second installation district, can dispel the heat to the second installation district of optical box, the influence of heat flow in the separation external environment to the optical box through the setting of multilayer thermal-insulated unit, thereby reduce the outer heat flow change and arouse the temperature fluctuation of optical box, improve the operational reliability of this optical box, radiation radiating element can guarantee in addition that the heat of this optical box can in time give off, prevent heat in the optical box cohesion, also be favorable to reducing the temperature fluctuation of optical box.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an optical box according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a multi-layered thermal insulation unit of the optical box thermal management device of the present utility model;
FIG. 3 is a schematic diagram showing the configuration of the thin film heater in cooperation with the optical substrate in the optical box thermal management device of the present utility model;
FIG. 4 is a schematic diagram showing the configuration of the thin film heater in cooperation with the main antenna in the optical box thermal management device of the present utility model;
FIG. 5 is a schematic diagram showing the configuration of the thin film heater and secondary antenna of the optical box thermal management device according to the present utility model;
FIG. 6 is a schematic cross-sectional view of a thin film heater mated with an optical substrate in an optical box thermal management device according to the present utility model;
FIG. 7 is a schematic cross-sectional view of a thin film heater and an optical antenna in the optical box thermal management device of the present utility model.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In order to solve the technical problem of difficult optical box temperature control in the existing inter-satellite laser communication terminal, the present technical scheme provides an optical box thermal management device for controlling the temperature of an optical box, the optical box comprises an optical substrate 20 and an optical antenna 10 arranged on the optical substrate 20, the optical box further comprises a first installation area and a second installation area, and the optical box thermal management device is characterized in that:
the active thermal control component is attached to the outer surfaces of the optical substrate 20 and the optical antenna 10 to heat the optical substrate 20 and the optical antenna 10 so as to adjust the temperature of different parts of the optical box;
the passive thermal control assembly comprises a multi-layer heat insulation unit and a radiation heat dissipation unit, wherein the multi-layer heat insulation unit is attached to the first installation area to insulate and preserve heat of the optical box, the radiation heat dissipation unit is attached to the second installation area to dissipate heat of the optical box, and the multi-layer heat insulation unit and the radiation heat dissipation unit jointly cover the optical box.
Wherein, the optical box has first installation district and second installation district, and this passive thermal control subassembly includes:
a multi-layer heat insulation unit attached to the first installation area to insulate the optical box from heat;
the radiation radiating unit is attached to the second installation area to radiate heat of the optical box, and the optical box is covered by the multi-layer heat insulation unit and the radiation radiating unit together;
the radiation radiating unit is made of S781 white paint.
Compared with the prior art, in the technical scheme of the utility model, the optical box heat management device comprises the active heat control component and the passive heat control component, wherein the optical box comprises the optical substrate 20 and the optical antenna 10 arranged on the optical substrate 20, the optical box is also provided with a first installation area and a second installation area, the active heat control component is attached to the outer surfaces of the optical substrate 20 and the optical antenna 10 and heats the optical substrate 20 and the optical antenna 10, and the active heat control component is used for controlling the temperature, so that the surface temperature of the optical box is prevented from being too low, the temperature change amplitude of the optical box is reduced, and the working reliability and the working precision of the optical box are guaranteed. In addition, this passive thermal control subassembly contains multilayer thermal-insulated unit and radiation radiating element, multilayer thermal-insulated unit is attached in the first installation district of optical box, with the first installation district and the external environment thermal isolation of this optical box, radiation radiating element is attached in the second installation district, can dispel the heat to the second installation district of optical box, the influence of heat flow in the separation external environment to the optical box through the setting of multilayer thermal-insulated unit, thereby reduce the outer heat flow change and arouse the temperature fluctuation of optical box, improve the operational reliability of this optical box, radiation radiating element can guarantee in addition that the heat of this optical box can in time give off, prevent heat in the optical box cohesion, also be favorable to reducing the temperature fluctuation of optical box.
Specifically, as shown in fig. 1 to 7, in this embodiment, the optical box thermal management device includes an active thermal control component, where the active thermal control component is attached to an outer surface of an optical box and can generate heat to heat the outer surface of the optical box, and when a component in the optical box is in a working condition with a low ambient temperature, the active thermal control component heats the component in the optical box, so that the surface temperature of the optical box is not too low, thereby being beneficial to reducing the temperature change of the optical box in the working process, and improving the working reliability of the optical box. In addition, this optical box heat management device still includes passive thermal control subassembly, this passive thermal control subassembly multilayer heat insulation unit cladding is in the outside of this optical box and initiative thermal control subassembly to isolate this optical box with external environment, keep warm to the optical box, through the heat preservation to the optical box, can prevent that the heat flow of external environment from producing the influence to the temperature of optical box, also be favorable to reducing the temperature variation of this optical box, in addition, this passive thermal control subassembly radiation heat dissipation unit can dispel the heat to the optical box, prevents the heat gathering that the optical box produced in the course of the work, avoids optical box high temperature. In this embodiment, the passive thermal control assembly includes a heat insulation unit and a radiation heat dissipation unit, the optical box includes an optical antenna 10, an optical substrate 20, a piezoceramic galvanometer 30, a CCD camera 40, a laser 50 and a PCB circuit board 60, and the optical box has a first mounting area and a second mounting area, the first mounting area is an outer surface area of the optical antenna 10, the optical substrate 20 and the piezoceramic galvanometer 30, which do not generate heat, and the second mounting area is an outer surface area of the CCD camera 40, the laser 50 and the PCB circuit board 60, which generate heat during operation; wherein, the multi-layer heat insulation unit can cover the first installation area, namely, the multi-layer heat insulation unit covers the outer surfaces of the optical antenna 10, the optical substrate 20 and the piezoelectric ceramic vibrating mirror 30, so that the components are isolated from the external environment, and further, heat flow in the external environment and the components are prevented from being subjected to heat exchange, and the temperature stability of the components is ensured; the radiation heat dissipation unit can cover the second installation area, and the radiation heat dissipation unit can cover the CCD camera 40, the laser 50 and the PCB circuit board 60, when the optical box works, the components can generate heat, the generated heat can be dissipated into the external environment through the radiation heat dissipation unit, the heat is prevented from being gathered in the components, the temperature rise of the second installation area is further controlled, and the working reliability of the optical box is improved. In addition, in order to improve the connection reliability of the multi-layer heat insulation unit and the optical box, the multi-layer heat insulation unit can be fixed on the outer surface of the optical box through nylon buckles, edge sealing is carried out at the edge position by adopting aluminum plating glue or adhesive tape, and the multi-layer heat insulation unit is fixed at the lap joint position by adopting silica gel glue dispensing.
Further, the multi-layered heat insulation unit includes:
a first reflective film 110 attached to an outer surface of the optical box for reflecting heat radiation of the optical box and a space environment, the first reflective film 110 being provided with a plurality of layers;
the separation film 120 is disposed between every two first reflection films 110, and is used for heat insulation between the two first reflection films 110.
Wherein the isolating film 120 is a terylene net towel; and/or, the first reflective film 110 is an aluminized polyester film; and/or, the barrier film 120 and the first reflective film 110 are alternately arranged in multiple layers.
As shown in fig. 2, the multi-layer heat insulation unit includes a first reflective film 110 and a separation film 120, wherein the first reflective film 110 is attached to the outer surface of the optical box, i.e. attached to the second mounting area, and when the heat flow from the external environment and the surface of the optical box reaches the first reflective film 110, the first reflective film 110 can reflect the heat flow, and prevent the external environment and the optical box from performing heat exchange, so as to realize the heat insulation effect on the optical box, and in this embodiment, the first reflective film 110 can be a double-sided aluminized polyester film, and such material has low emissivity and can reflect external heat radiation. In addition, the isolation film 120 is attached to the outside of the first reflective film 110, the isolation film 120 can be attached to the outside of the first reflective film 110, and the isolation film 120 can be made of a heat insulation material made of porous materials such as polyester mesh cloth, and the heat conduction between the first reflective films 110 is isolated due to the porous loose structure of the material, so that the heat insulation effect is achieved. In addition, in order to improve the heat insulation effect, the insulating film 120 and the first reflective film 110 may be alternately provided in multiple layers, i.e., the multiple layers of the first reflective film 110 are provided to improve the effect of reflecting heat, and the insulating film 120 is provided between two adjacent first reflective films 110 to prevent heat transfer between the two first reflective films 110, thereby improving the heat insulation effect.
Further, the multi-layer heat insulation unit further comprises a protective film 130, wherein the protective film 130 is attached to the inner and outer surfaces of the multi-layer heat insulation unit, and the protective film 130 is a polyimide film. As shown in fig. 2, in order to improve the service life of the multi-layer heat insulation unit, the multi-layer heat insulation unit is further provided with a protective film 130, the protective film 130 can be attached to the inner surface and the outer surface of the multi-layer heat insulation unit, in this embodiment, the protective film 130 may be a polyimide film, and since the polyimide film has good weather resistance, the insulating film 120 and the first reflective film 110 can be protected after the polyimide film is provided, which is beneficial to prolonging the service life of the multi-layer heat insulation unit.
Further, the optical box includes an optical substrate 20 and an optical antenna 10 disposed on the optical substrate 20, and the active thermal control assembly includes a thin film heater 200, wherein the thin film heater 200 is attached to the outer surfaces of the optical substrate 20 and the optical antenna 10 to heat the outer surfaces of the optical substrate 20 and the optical antenna 10.
As shown in fig. 3 to 5, in the present embodiment, the active thermal control assembly includes a thin film heater 200, the thin film heater 200 is attached to the optical substrate 20, and by heating a part of the area of the optical substrate 20 and transferring heat to other areas of the optical substrate 20 by heat conduction, temperature compensation and temperature control of the optical substrate 20 are achieved, in addition, the thin film heater 200 is attached to the optical antenna 10, specifically, the optical antenna 10 includes a main antenna 11 and a sub-antenna 12, and the thin film heater 200 is attached to the main antenna 11 and the sub-antenna 12, respectively, and similar to the optical substrate 20, by heating the part of the area of the main antenna 11 and the part of the sub-antenna 12 and by heating the other areas of the main antenna 11 and the sub-antenna 12 by heat conduction, temperature compensation and temperature control of the optical antenna 10 can also be achieved.
Further, the thin film heater 200 includes:
a first insulating film 210 for attaching to the outer surfaces of the optical antenna 10 and the optical substrate 20;
a first heating wire 220 attached to one side of the first insulating film 210;
the second insulating film 230 is attached to one side of the first heating wire 220, and seals the first heating wire 220 in cooperation with the first insulating film 210.
Referring to fig. 6, in the present embodiment, the thin film heater 200 includes a first insulating film 210, a first heating wire 220 and a second insulating film 230, wherein the first insulating film 210 and the second insulating film 230 may be made of polyimide, the first heating wire 220 may be disposed between the first insulating film 210 and the second insulating film 230, the first heating wire 220 is sealed by the first insulating film 210 and the second insulating film 230, and the first insulating film 210 may be fixed on the outer surfaces of the optical antenna 10 and the optical substrate 20 by adhesion or the like. When the first heating wire 220 generates heat, the generated heat can be transferred to the optical antenna 10 and the optical substrate 20 through the first insulating film 210, so as to heat the optical antenna 10 and the optical substrate 20.
Further, the second insulating film 230 and the first heating wire 220 are alternately arranged in multiple layers, as shown in fig. 7, the second insulating film 230 and the first heating wire 220 can be alternately arranged in multiple layers, and by adopting the stacking manner, the area of the thin film heater 200 can be reduced on the premise of realizing the same heating power, which is beneficial to reducing the occupation of the thin film heater 200 on the outer surfaces of the optical antenna 10 and the optical substrate 20, and is convenient for the position arrangement of the thin film heater 200; and/or, the thin film heater 200 further includes a second reflective film 240, where the second reflective film 240 is attached to the outer side of the second insulating film 230, and is used for reflecting the heat generated by the first heating wire 220, as shown in fig. 7, in order to improve the heating effect of the thin film heater 200, a layer of second reflective film 240 is attached to the outer side of the second insulating film 230, and the second reflective film 240 may be an aluminized polyester film, and the second reflective film 240 may enable the heat emitted from the first heating wire 220 to the second insulating film 230 to be reflected to the side of the first insulating film 210, thereby reducing the heat loss, improving the heating effect of the thin film heater 200, and at the same time, the second reflective film 240 may also reflect the heat radiation of the spatial environment, and reducing the heat exchange between the spatial environment and the thin film heater 200; and/or, the thin film heater 200 is disposed on the optical substrate 20 at intervals, and in order to improve the heating effect, the thin film heater 200 is disposed on the optical substrate 20 at intervals, and the heating uniformity of the heating rate can be improved by increasing the heating area of the optical substrate 20; and/or, the active thermal control assembly further comprises: the first temperature sensor 300 and the second temperature sensor 400 are attached to the optical substrate 20, the second temperature sensor 400 is attached to the optical antenna 10, as shown in fig. 3 to 5, the active thermal control assembly further comprises a first temperature sensor 300 and a second temperature sensor 400, the first temperature sensor 300 and the second temperature sensor 400 can be thermistors, wherein the first temperature sensor 300 can be attached to the optical substrate 20, the second temperature sensor 400 can be attached to the optical antenna 10, the surface temperature of the optical substrate 20 can be monitored in real time through the first temperature sensor 300, so that the real-time temperature compensation of the optical substrate 20 is facilitated, and the real-time temperature compensation of the optical antenna 10 is also facilitated through the real-time monitoring of the surface temperature of the optical antenna 10 through the second temperature sensor 400.
The foregoing description of the embodiments of the present utility model is merely an optional embodiment of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present utility model in the light of the present utility model, the description of which and the accompanying drawings, or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (9)
1. An optical box thermal management device for temperature control of an optical box, the optical box comprising an optical substrate and an optical antenna disposed on the optical substrate, the optical box further having a first mounting region and a second mounting region, the optical box thermal management device comprising:
the active thermal control assembly is attached to the outer surfaces of the optical substrate and the optical antenna so as to heat the optical substrate and the optical antenna and adjust the temperature of the optical box component;
the passive thermal control assembly comprises a multilayer heat insulation unit and a radiation heat dissipation unit, wherein the multilayer heat insulation unit is attached to the first installation area to insulate heat and keep warm of the optical box, the radiation heat dissipation unit is attached to the second installation area to dissipate heat of the optical box, and the multilayer heat insulation unit and the radiation heat dissipation unit jointly cover the optical box.
2. The optical tank thermal management apparatus of claim 1, wherein the multi-layered thermal insulation unit comprises:
the first reflecting film is attached to the outer surface of the optical box and used for reflecting heat radiation of the optical box and the space environment, and a plurality of layers of the first reflecting film are arranged;
and the isolating films are arranged between every two first reflecting films and are used for insulating heat between the two first reflecting films.
3. The optical tank thermal management apparatus of claim 2, wherein the isolation film is a polyester mesh; and/or the first reflecting film is an aluminized polyester film.
4. The optical tank thermal management apparatus of claim 3 wherein the passive thermal control assembly further comprises a protective film attached to the inner and outer surfaces of the multi-layer thermal insulation unit.
5. The optical tank thermal management apparatus of claim 4, wherein the protective film is a polyimide film.
6. The optical box heat management apparatus according to claim 1, wherein the radiation heat dissipation unit is made of S781 white paint.
7. The optical tank thermal management apparatus of claim 1 wherein the active thermal control assembly comprises a thin film heater attached to the outer surfaces of the optical substrate and the optical antenna to heat the optical substrate and the optical antenna.
8. The optical tank thermal management apparatus of claim 7 wherein the thin film heater comprises:
a first insulating film for attaching to the outer surfaces of the optical antenna and the optical substrate;
a first heating wire attached to one side of the first insulating film;
and the second insulating film is attached to one side of the first heating wire and matched with the first insulating film to seal the first heating wire.
9. The optical tank heat management apparatus according to claim 8, wherein the second insulating film is provided in a plurality of layers alternately with the first heating wire; and/or the thin film heater further comprises a second reflecting film, wherein the second reflecting film is attached to the outer side of the second insulating film and is used for reflecting heat radiation of the thin film heater and the space environment; and/or the thin film heater is arranged on the optical substrate at intervals; and/or, the active thermal control assembly further comprises: the first temperature sensor is attached to the optical substrate, and the second temperature sensor is attached to the optical antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322284486.3U CN220674250U (en) | 2023-08-22 | 2023-08-22 | Optical box thermal management device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322284486.3U CN220674250U (en) | 2023-08-22 | 2023-08-22 | Optical box thermal management device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220674250U true CN220674250U (en) | 2024-03-26 |
Family
ID=90340386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322284486.3U Active CN220674250U (en) | 2023-08-22 | 2023-08-22 | Optical box thermal management device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220674250U (en) |
-
2023
- 2023-08-22 CN CN202322284486.3U patent/CN220674250U/en active Active
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