CN107172840B - Thermal-insulated fixed knot of cloud platform Camera inertia measuring unit constructs - Google Patents
Thermal-insulated fixed knot of cloud platform Camera inertia measuring unit constructs Download PDFInfo
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- CN107172840B CN107172840B CN201710428518.9A CN201710428518A CN107172840B CN 107172840 B CN107172840 B CN 107172840B CN 201710428518 A CN201710428518 A CN 201710428518A CN 107172840 B CN107172840 B CN 107172840B
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- measurement unit
- camera
- inertial measurement
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
Abstract
The invention belongs to the technical field of unmanned aerial vehicle Camera, and particularly relates to a thermal insulation fixing structure of a Camera inertial measurement unit. Including the casing and set up in inertial measurement unit, heat-insulating glue, connector, camera PCB, hot melt post and Camera module in the casing, wherein the bottom of casing is equipped with the cavity, be equipped with a plurality of hot melt posts in the cavity, inertial measurement unit is fixed in through a plurality of hot melt post hot melts in the cavity, and through filling in the parcel is glued to heat-insulating in the cavity, camera PCB pass through the connector with inertial measurement unit connects, the Camera module is located inertial measurement unit's top, and with the casing links firmly. And the heat influence isolation is greatly improved. The invention can accurately position, avoid assembly error and ensure higher relative position precision with Camera; meanwhile, the heat source can be kept away, so that the heat source isolation is realized, and the excellent performance of constant temperature control is more conveniently achieved.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicle Camera, and particularly relates to a thermal insulation fixing structure of a Camera inertial measurement unit.
Background
The inertia measurement unit module is a set of electronic module who extensively is used for detecting and feedbacks Camera gesture on unmanned aerial vehicle cloud platform Camera (Camera) product because it is more sensitive to the change of temperature, keeps apart it with other electronic components usually, reduces the temperature variation influence that heat-conduction brought. At present, two types of structural design schemes are mainly adopted: 1. assembling the inertial measurement unit 70 into a set of separate housing chambers, i.e., a chamber consisting of the module upper case 50 and the module lower case 80, the inertial measurement unit 70 being surrounded by the foam-type auxiliary material 60, and then fixing the module to a certain position in the body, as shown in fig. 1; 2. a part of area is isolated on a PCB (printed circuit board) independently, an inertia measurement unit is isolated from other component areas, and then the unit module is coated with glue or covered with heat insulation foam for heat insulation treatment.
The main drawbacks of the two types of structures are:
scheme 1: the separate structural housing assembly is largely deficient in two ways: a, the structure is complex, the assembly of the module is complex, and b, because the module is assembled on the shell, the assembly deviation is generated in the assembly process, and the consistency of the relative positions of the module and the Camera is low.
Scheme 2: keep apart inertia measuring unit on the PCB board, this scheme main defect is because inertia measuring unit still exists physical connection with the PCB board, and the heating of the components and parts on the main PCB still can be easier conducts inertia measuring unit, and because simple rubber coating or thermal-insulated bubble cotton isolated ambient heat that can not be even, lead to inertia measuring unit's thermal-insulated effect not enough even and unanimous.
At present, the two design schemes do not achieve good balance in heat insulation and fixation, and under the condition, a novel heat insulation and fixation design scheme of the inertia measurement unit is necessary.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a thermal insulation fixing structure for a Camera inertial measurement unit of a pan/tilt head, so as to solve the problem that the existing fixing mode of the inertial measurement unit module does not achieve good balance in thermal insulation and fixation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a thermal-insulated fixed knot of cloud platform Camera inertia measuring unit constructs, includes the casing and set up in inertia measuring unit, heat-insulating glue, connector, camera PCB, hot melt post and Camera module in the casing, wherein the bottom of casing is equipped with the cavity, be equipped with a plurality of hot melt posts in the cavity, inertia measuring unit is fixed in through a plurality of hot melt post hot melts in the cavity, and through filling in the parcel is glued to heat-insulating in the cavity, camera PCB pass through the connector with inertia measuring unit connects, the Camera module is located inertia measuring unit's top, and with the casing links firmly.
And the bottom of the cavity is provided with a limiting structure for positioning and supporting the inertia measurement unit.
The limiting structure is a limiting rib connected with the shell, and two ends of the inertia measurement unit are positioned and supported by the limiting rib.
The four hot melting columns are respectively inserted into through holes formed in the four corners of the inertia measurement unit, and the upper ends of the four hot melting columns are hot-melted with the inertia measurement unit into a whole in a hot melting mode.
The cavity is a cavity with the periphery closed and the top opened.
The casing is including dismantling the last casing of connection and lower casing, the cavity set up in the bottom of casing down.
The Camera PCB is positioned in the upper shell and is connected with the Camera module.
The Camera PCB and the connector are located at one side of the Camera module.
And a connecting seat is arranged on the side surface of the lower shell, and the Camera module is fixedly connected with the connecting seat.
The heat insulation glue is epoxy resin.
The invention has the advantages and beneficial effects that: according to the invention, the inertia measurement unit is away from the Camera PCB and is directly assembled with the shell, so that the accurate positioning can be realized, the assembly error is avoided, and the higher relative position accuracy between the inertia measurement unit and the Camera is ensured; and the periphery of the inertia measurement unit is sealed and wrapped by the heat insulation glue, so that the effect of isolating an external heat source is excellent, the heat source is isolated, and the excellent performance of constant temperature control is more conveniently achieved. Therefore, the present invention has greatly improved position precision and heat influence isolation.
Drawings
FIG. 1 is a schematic diagram of a prior art inertial measurement unit employing a single set of housing chambers;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a top view of the lower housing of the present invention;
FIG. 4 is a schematic structural view of the inertial measurement unit of the present invention prior to installation;
fig. 5 is a schematic structural diagram of the inertial measurement unit according to the present invention after installation.
In the figure: 1 is inertial measurement unit, and 2 are down the casing, and 3 are thermal-insulated glue, and 4 are the connector, and 5 are Camera PCB, and 6 are hot melt post, and 7 are the upper housing, and 8 are the Camera module, and 9 are the cavity, and 10 are the connecting seat.
Detailed Description
One prior art technique for fixing the inertial measurement unit is: and (3) independently isolating a part of area on the PCB, isolating the inertia measurement unit from other component areas, and then coating glue or covering heat insulation foam on the unit module to carry out heat insulation treatment. The main defect of this scheme is that because the inertia measurement unit still has physical connection with the PCB board, the component on the main PCB generate heat and still can be easier conduction to the inertia measurement unit, and because simple rubber coating or thermal-insulated bubble cotton can not be even isolated the surrounding environment heat, lead to inertia measurement unit's thermal-insulated effect not even enough and unanimous.
The design concept of the invention is as follows: aiming at the problems that the heating of components on a main PCB can still be easily conducted to an inertia measuring unit in the fixing mode of the existing inertia measuring unit, and the heat insulation effect of the inertia measuring unit is not uniform and consistent due to the fact that the heat of the surrounding environment cannot be uniformly isolated by simple glue coating or heat insulation foam, the inertia measuring unit is far away from a Camera PCB and is directly assembled with a shell, so that the inertia measuring unit can be accurately positioned, assembly errors are avoided, and higher relative position accuracy between the inertia measuring unit and the Camera is ensured; and the periphery of the inertia measurement unit is wrapped by the heat insulation glue in a sealing way, so that the effect of isolating the external heat source is excellent, the heat source isolation is realized, and the excellent performance of constant temperature control is more conveniently achieved.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2 to 5, the tripod head Camera inertia measurement unit heat insulation fixing structure provided by the present invention comprises a housing, and an inertia measurement unit 1, a heat insulation glue 3, a connector 4, a Camera PCB5, a hot-melt column 6 and a Camera module 8 which are arranged in the housing, wherein a cavity 9 is arranged at the bottom of the housing, a plurality of hot-melt columns 6 are arranged in the cavity 9, the inertia measurement unit 1 is fixed in the cavity 9 by hot-melt through the hot-melt columns 6 and is wrapped by the heat insulation glue 3 filled in the cavity 9, the Camera PCB5 is connected with the inertia measurement unit 1 through the connector 4, and the Camera module 8 is located above the inertia measurement unit 1 and is fixedly connected with the housing.
The shell comprises an upper shell 7 and a lower shell 2 which are detachably connected, and in one embodiment of the invention, the upper shell 7 and the lower shell 2 are connected through bolts.
Further, the chamber 9 is disposed at the bottom center of the lower housing 2, and the chamber 9 is a cavity with a closed periphery and an open top.
Further, the bottom of the chamber 9 is provided with a limit structure for positioning and supporting the inertial measurement unit 1, and the inertial measurement unit 1 is positioned and supported by the limit structure.
In an embodiment of the present invention, the limiting structure is a limiting rib integrally formed with the lower housing 2, and two ends of the inertia measurement unit 1 are supported by the limiting rib in a positioning manner.
In an embodiment of the present invention, there are four hot-melting columns 6, four through holes distributed on four corners of the inertial measurement unit 1 are provided, the four hot-melting columns 6 are respectively inserted into the four through holes of the inertial measurement unit 1, and the upper ends of the four hot-melting columns 6 are hot-melted with the inertial measurement unit 1 into a whole in a hot-melting manner.
Inertia measuring unit 1 melts fixedly as an organic whole through hot melt post 6 between 2 with inferior valve, and guarantees inertia measuring unit 1's location through the limit structure accuracy on inferior valve 2.
Further, a connecting socket 10 is arranged on the side surface of the lower shell 2, and the camera module 8 is fixedly connected with the connecting socket 10. Camera PCB5 is located inside upper case 7 and connected to Camera module 8, connector 4 electrically connects inertial measurement unit 1 to Camera PCB5, and Camera PCB5 and connector 4 are located at one side of Camera module 8.
The heat insulation glue 3 is epoxy resin. In an embodiment of the present invention, the heat insulating glue 3 is epoxy resin with a model number of E0230. The liquid heat insulation glue E0230 is filled in the cavity 9 of the lower shell 2 to wholly wrap the inertia measurement unit 1 for heat insulation.
The installation process of the invention is as follows:
as shown in fig. 4, a cavity 9 with a closed top opening at the periphery is designed at the middle position of the bottom of the housing 2, a limiting rib is arranged at the bottom of the cavity 9 and used for supporting the inertia detection unit 1, and a hot melt column structure is arranged at the diagonal position. Firstly, the inertia measurement unit 1 is assembled in the cavity 9 on the lower shell 2, is spliced with the four hot melting columns 6, is positioned and supported by the limiting ribs, and is fixed together by the hot melting columns 6 in a hot melting way, as shown in fig. 5. After the hot melting, fix inertia detecting element 1 and inferior valve 2 together, guarantee inertia detecting element 1 jointly with the spacing muscle of bottom sprag to have stable accurate fixed position in inferior valve 2. From this, inertia detecting element 1 is in inferior valve 2 bottom cavity middle part, then injects the thermal-insulated glue 3 that the model is E0230 into the cavity 9 that inertia measuring element 1 is located, waits for a certain time after, the thermal-insulated glue solidification is accomplished, and inertia measuring element 1 is by complete parcel wherein. With connector 4 block to carry out electrical apparatus connection on Camera PCB5 board, then be connected Camera module 8 and connecting seat 10 on the lower casing 2 side through helicitic texture, pass through bolted connection with upper shell 7 and lower casing 2 at last, accomplish the equipment of cloud platform Camera module.
The difference of the thermal insulation fixing structure of the inertial measurement unit and the structural design of the existing inertial measurement unit is as follows:
in the existing two major structures, the first type of inertia measurement unit is assembled in an independent structure, and the dimension chain between the first type of inertia measurement unit and the Camera is too long, so that the relative position precision is low; the second type is that the inertia measurement unit and the Camera PCB are integrated, the heat insulation effect is poor, and the defect exists in the control of the temperature. The inertia measurement unit is far away from the Camera PCB and is directly assembled with the shell, so that the position precision is greatly improved, and the periphery of the inertia measurement unit is hermetically wrapped by special heat-insulating glue, so that the inertia measurement unit has an excellent effect of isolating the influence of an external heat source. Therefore, the position precision and the heat influence isolation are greatly improved.
In conclusion, the high-precision independent heat insulation fixing structure of the inertia measurement unit can accurately position, avoid assembly errors and ensure higher relative position precision with the Camera; meanwhile, the heat source can be kept away, so that the heat source isolation is realized, and the excellent performance of constant temperature control is more conveniently achieved.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (7)
1. A thermal insulation fixing structure of a tripod head Camera inertia measuring unit is characterized by comprising a shell, and an inertia measuring unit (1), a thermal insulation adhesive (3), a connector (4), a Camera PCB (5), a hot melting column (6) and a Camera module (8) which are arranged in the shell;
the shell comprises an upper shell (7) and a lower shell (2) which are detachably connected, a connecting seat (10) is arranged on the side surface of the lower shell (2), and a cavity (9) is arranged at the bottom of the lower shell (2);
a plurality of hot melting columns (6) are arranged in the cavity (9), and the inertia measurement unit (1) is fixed in the cavity (9) through the hot melting of the hot melting columns (6) and is wrapped by heat insulation glue (3) filled in the cavity (9);
and the Camera PCB (5) is positioned in the upper shell (7) to form a spaced arrangement with the inertia measurement unit (1), and is connected with the inertia measurement unit (1) through a connector (4), and the Camera module (8) is positioned above the inertia measurement unit (1), is fixedly connected with the connecting seat (10), and is connected with the Camera PCB (5).
2. A pan-tilt-zoom-Camera inertial measurement unit heat-insulation fixing structure according to claim 1, characterized in that the bottom of said chamber (9) is provided with a limit structure for positioning and supporting said inertial measurement unit (1).
3. A tripod head Camera inertia measurement unit heat insulation fixing structure according to claim 2, wherein the limiting structure is a limiting rib connected with the housing, and two ends of the inertia measurement unit (1) are positioned and supported by the limiting rib.
4. A tripod head Camera inertial measurement unit heat insulation fixing structure according to any one of claims 1-3, wherein the number of the hot-melt columns (6) is four, and the hot-melt columns are respectively inserted into through holes arranged at four corners of the inertial measurement unit (1), and the upper ends of the four hot-melt columns (6) are hot-melted with the inertial measurement unit (1) into a whole in a hot-melt manner.
5. A pan-tilt Camera inertial measurement unit heat-insulating fixed structure according to claim 1, characterized in that said chamber (9) is a cavity closed all around and open at the top.
6. A pan-tilt Camera inertial measurement unit heat-insulating fixing structure according to claim 1, characterized in that said Camera PCB (5) and said connector (4) are located on one side of said Camera module (8).
7. A pan-tilt-zoom-Camera inertial measurement unit heat-insulation fixing structure according to claim 1, characterized in that said heat-insulation glue (3) is epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428518.9A CN107172840B (en) | 2017-06-08 | 2017-06-08 | Thermal-insulated fixed knot of cloud platform Camera inertia measuring unit constructs |
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| CN201710428518.9A CN107172840B (en) | 2017-06-08 | 2017-06-08 | Thermal-insulated fixed knot of cloud platform Camera inertia measuring unit constructs |
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| CN107172840A CN107172840A (en) | 2017-09-15 |
| CN107172840B true CN107172840B (en) | 2022-11-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019134129A1 (en) * | 2018-01-05 | 2019-07-11 | 深圳市大疆创新科技有限公司 | Circuit board and unmanned aerial vehicle using circuit board |
| CN109672812A (en) * | 2018-12-13 | 2019-04-23 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of missile-borne photographic device of resistance to short time high temperature |
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