CN104501964A - High-precision and impact-resistant electric infrared thermal imaging device - Google Patents
High-precision and impact-resistant electric infrared thermal imaging device Download PDFInfo
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- CN104501964A CN104501964A CN201410850526.9A CN201410850526A CN104501964A CN 104501964 A CN104501964 A CN 104501964A CN 201410850526 A CN201410850526 A CN 201410850526A CN 104501964 A CN104501964 A CN 104501964A
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- thermal imaging
- imaging device
- sliding axle
- infrared thermal
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Abstract
The invention relates to a high-precision and impact-resistant electric infrared thermal imaging device. By structuring a driving shaft mechanism and a plurality of sliding shaft mechanisms, the high-precision and impact-resistant electric infrared thermal imaging device achieves multi-shaft linkage focusing, ensures linear movement of a focusing lens module during a focusing process and further ensures high precision. Meanwhile, through cooperation of the driving shaft mechanism and the plurality of sliding shaft mechanisms, the high-precision and impact-resistant electric infrared thermal imaging device achieves fixation of the focusing lens module and enables the focusing lens module to be firm and impact-resistant; by means of the sliding shaft mechanisms, the focusing lens module can slide for operation during the focusing process, thereby being smooth in focusing.
Description
Technical field
The present invention relates to a kind of infrared thermal imaging device, particularly relate to a kind of focusing by multiaxis straight line and realize the impact-resistant infrared thermal imaging device of high precision.
Background technology
The infrared light that target object is launched is converged on the focal plane arrays (FPA) of microbolometer detector of thermal imaging assembly by infrared thermal imagery camera lens by thermal infrared imager, then forms the hot difference image of object by digital-to-analog conversion and computational analysis.Bigbore infrared thermal imagery camera lens, to far and near different target imaging and temperature variation larger time, the relative position that need adjust between focusing eyeglass and other optical mirror slips carries out focus movement, and focuses eyeglass when mobile, because optical axis change will cause the center of imaging to occur skew.When thermal imaging system is as aiming purposes, this skew will cause pointing error.At some special, thermal imaging system will bear very large vibratory impulse while work, just requires that any displacement of focusing lens sheet in focusing range can locking position, does not run Jiao.Next thermal imaging assembly comprising microbolometer detector and precision circuit thereof is relatively fragile, can not bear the buckles of peak value.
Summary of the invention
The technical matters that the present invention solves is: build the shock-resistant infrared thermal imaging device of a kind of high-precision electric, overcomes the focusing of prior art infrared thermal imaging and mostly is rotating wire mouth driving focusing, the technical matters easily affected by external impact; Meanwhile, the thermal imaging device overcoming present technology easily damages the technical matters of thermal imaging assembly under external impact.
Technical scheme of the present invention is: build the shock-resistant infrared thermal imaging device of a kind of high-precision electric, comprise infrared lens, thermal imaging assembly, described infrared lens comprises focusing lens chip module, the sliding axle mechanism be oppositely arranged, drive shaft mechanism, drive the motor of described drive shaft mechanism, , the sliding shoe that described sliding axle mechanism comprises sliding axle and slides on described sliding axle, described drive shaft mechanism comprises rotation axis and movable drive block, the two ends of described focusing lens chip module are separately fixed on the sliding shoe of described sliding axle mechanism, the middle part of described focusing lens chip module is fixedly connected with the drive block of described drive shaft mechanism, described rotation axis connects described motor, described motor drives described rotation axis, the rotation of described rotation axis makes described drive block move forward and backward, the mobile of described drive block drives described focusing lens chip module to move on described sliding axle.
Further technical scheme of the present invention is: described sliding axle mechanism and described drive shaft mechanism are arranged in a triangle.
Further technical scheme of the present invention is: also comprise the limit position sensor group limiting described focusing lens chip module moving range.
Further technical scheme of the present invention is: described drive shaft mechanism also comprises the latch-up structure locking described drive block movement.
Further technical scheme of the present invention is: the position-limit mechanism described sliding axle being arranged the moving range limiting described focusing lens chip module.
Further technical scheme of the present invention is: described drive shaft mechanism is self-locking trapezoidal screw.
Further technical scheme of the present invention is: described limit position sensor group is non-contact photoelectric sensor group.
Further technical scheme of the present invention is: described motor is reducing motor.
Further technical scheme of the present invention is: described sliding axle mechanism is multiple.
Further technical scheme of the present invention is: the buffer gear also comprise infrared imaging assembly, cushioning to described infrared imaging assembly, described infrared imaging assembly comprises mount pad, described mount pad two ends arrange buffer gear, and described buffer gear comprises dashpot.
Further technical scheme of the present invention is: one end of described dashpot is sheet elastomer part.
Further technical scheme of the present invention is: described buffer gear and described mount pad are integral type structure.
Technique effect of the present invention is: build the shock-resistant infrared thermal imaging device of a kind of high-precision electric, comprise infrared lens, thermal imaging assembly, described infrared lens comprises focusing lens chip module, the sliding axle mechanism be oppositely arranged, drive shaft mechanism, drive the motor of described drive shaft mechanism, the sliding shoe that described sliding axle mechanism comprises sliding axle and slides on described sliding axle, described drive shaft mechanism comprises rotation axis and movable drive block, the two ends of described focusing lens chip module are separately fixed on the sliding shoe of described sliding axle mechanism, the middle part of described focusing lens chip module is fixedly connected with the drive block of described drive shaft mechanism, described rotation axis connects described motor, described motor drives described rotation axis, the rotation of described rotation axis makes described drive block move forward and backward, the mobile of described drive block drives described focusing lens chip module to move on described sliding axle.The shock-resistant infrared thermal imaging device of high-precision electric of the present invention, by building the structure of drive shaft mechanism and multiple sliding axle mechanism, multi-axes moving is focused, and guarantees that focusing lens chip module moves at focussing process cathetus, ensure that the high precision of equipment.Meanwhile, by the cooperation of the multiple axle of drive shaft mechanism and multiple sliding axle mechanisms, achieve the fixing of focusing lens chip module, make it more firmly shock-resistant; By the use of sliding axle mechanism, make focusing lens chip module sliding and running in focussing process, focus more smooth and easy.By with the driving shaft of latching characteristics and the combination of reducing motor, realize the focusing optional position of eyeglass within the scope of focusing mobile and there is locking position characteristic.The thermal imaging assembly of the shock-resistant infrared thermal imaging device of high-precision electric of the present invention is fixed to infrared thermal imagery camera lens by a buffer gear with dashpot; when the shock pulse of outside passes through on infrared lens structure conduction to infrared thermal imaging assembly; buffer gear with dashpot can reduce shock pulse peak value, the core component of protection thermal imaging assembly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of sliding axle mechanism of the present invention.
Fig. 3 is the structural representation of drive shaft mechanism of the present invention.
Fig. 4 is the structural representation of limit position sensor group of the present invention.
Fig. 5 is the structural representation of infrared imaging assembly of the present invention.
Embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is further illustrated.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the specific embodiment of the present invention is: build the shock-resistant infrared thermal imaging device of a kind of high-precision electric, comprise infrared lens, thermal imaging assembly, described infrared lens comprises focusing lens chip module 6, the sliding axle mechanism 2 be oppositely arranged, drive shaft mechanism 3, drive the motor 4 of described drive shaft mechanism 3, the sliding shoe 22 that described sliding axle mechanism 2 comprises sliding axle 21 and slides on described sliding axle 21, described drive shaft mechanism 3 comprises rotation axis 31 and movable drive block 32, the two ends of described focusing lens chip module 6 are separately fixed on the sliding shoe 22 of described sliding axle mechanism 2, the middle part of described focusing lens chip module 6 is fixedly connected with the drive block 32 of described drive shaft mechanism 3, described rotation axis 31 connects described motor 4, described motor 4 drives described rotation axis 31, the rotation of described rotation axis 31 makes described drive block 32 move forward and backward, the mobile of described drive block 32 drives described focusing lens chip module 6 to move focusing on described sliding axle.In specific embodiment, described in the rotary actuation of described motor 4, rotation axis 31 rotates.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, specific embodiment of the invention process is: during operation, after receiving focusing instruction, the sensor 72 or 73 of the corresponding direction of motion of the first detection limit position transducer group 7 of control system, as respective sensor benefit triggers, then undo, as respective sensor does not trigger, instruction is sent to described motor 4, described motor 4 runs to drive and drives described rotation axis 31 to rotate, the rotation of described rotation axis 31 makes described drive block 32 move forward and backward, the middle part of described focusing lens chip module 6 is fixedly connected with the drive block 32 of described drive shaft mechanism 3, the movable movement being driven described focusing lens chip module 6 by the middle part of focusing lens chip module 6 of described drive block 32, two ends due to described focusing lens chip module 6 are separately fixed on the sliding shoe 22 of described sliding axle mechanism 2, the sliding shoe 22 of described sliding axle mechanism 2 slides on described sliding axle 21.Thus achieve accurate focusing, in focussing process, described focusing lens chip module 6 carries out rectilinear motion, and affect little by external impact, precision is high; And adopt at least three axles to fix, impact resistance is strong.
As shown in Figure 1, Figure 2, Figure 3 shows, the preferred embodiment of the present invention is: described sliding axle mechanism 2 and described drive shaft mechanism 3 are arranged in a triangle.The position of described drive shaft mechanism 3 is higher than the position of described sliding axle mechanism 2, the position of the drive block 32 of especially described drive shaft mechanism 3 is higher than sliding shoe 22 position of described sliding axle mechanism 2, and the top of the middle part of described focusing lens chip module 6 is fixedly connected with the drive block 32 of described drive shaft mechanism 3.Three axles of isosceles triangle arrange and make system more firm.
As shown in Figure 1, Figure 2, Figure 3 shows, the preferred embodiment of the present invention is: described sliding axle mechanism 2 is for multiple, and multiple sliding axle mechanisms 2 composition can be more than three, according to the intensity needs of structural system, can be designed as multiple, be fixed by multiple axle, make it run more stable.
As shown in Figure 1, Figure 2, Figure 3 shows, the preferred embodiment of the present invention is: described drive shaft mechanism 3 also comprises the latch-up structure of locking described drive block 32 movement.Avoid high impact forces on the impact of described drive shaft mechanism 3 and described focusing lens chip module 6.In specific embodiment, described drive shaft mechanism 3 is self-locking trapezoidal screw, and self-locking trapezoidal screw possesses lock function, its transmission principle, when the lead angle λ of drive block 32 is less than or equal to equivalent friction angle β, and this gear train direction self-locking.Self-locking theoretical calculation formula
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the preferred embodiment of the present invention is: the limit position sensor group 7 arranging the moving range limiting described focusing lens chip module 6.Position-limit mechanism is used for limiting the moving range of focusing lens chip module 6, avoids damaging parts.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the preferred embodiment of the present invention is: described motor 13 is reducing motor, and reducing motor helps drive shaft mechanism 3 to lock described focusing lens chip module 6, prevents high impact forces to be subjected to displacement.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the limit position sensor group 7 limiting described focusing lens chip module 6 moving range is also comprised.Described limit position sensor group 7 is non-contact photoelectric sensor group.Described focusing lens chip module 6 drives the catch 71 of limit position sensor group 7 in moving process, and catch 71 can triggered motion limit position sensor 72,73.
As shown in Figure 1, shown in Figure 5, the preferred embodiment of the present invention is: the support frame 51 also comprise infrared imaging assembly 5, being fixed to described infrared imaging assembly 5, described infrared imaging assembly comprises mount pad 52, described mount pad two ends arrange damping 53, and described damping 53 comprises damping trough.One end of described damping trough 531 is sheet elastomer part.Described damping and described mount pad are integral type structure.
Technique effect of the present invention is: build the shock-resistant infrared thermal imaging device of a kind of high-precision electric, comprise infrared lens, thermal imaging assembly, described infrared lens comprises focusing lens chip module 6, the sliding axle mechanism 2 be oppositely arranged, drive shaft mechanism 3, drive the motor 4 of described drive shaft mechanism 3, the sliding shoe 22 that described sliding axle mechanism 2 comprises sliding axle 21 and slides on described sliding axle 21, described drive shaft mechanism 3 comprises rotation axis 31 and movable drive block 32, the two ends of described focusing lens chip module 6 are separately fixed on the sliding shoe 22 of described sliding axle mechanism 2, the middle part of described focusing lens chip module 6 is fixedly connected with the drive block 32 of described drive shaft mechanism 3, described rotation axis 31 connects described motor 4, described motor 4 drives described rotation axis 31, the rotation of described rotation axis 31 makes described drive block 32 move forward and backward, the mobile of described drive block 32 drives described focusing lens chip module 6 to move focusing on described sliding axle.The shock-resistant infrared thermal imaging device of high-precision electric of the present invention, by building the structure of drive shaft mechanism 3 and multiple sliding axle mechanism 2, multi-axes moving is focused, and guarantees that focusing lens chip module 6 moves at focussing process cathetus, ensure that the high precision of equipment.Meanwhile, by the cooperation of drive shaft mechanism 3 and multiple sliding axle mechanisms more than 2 axle, achieve the fixing of focusing lens chip module 6, make it more firmly shock-resistant; By the use of sliding axle mechanism 2, make focusing lens chip module 6 sliding and running in focussing process, focus more smooth and easy.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the shock-resistant infrared thermal imaging device of high-precision electric, it is characterized in that, comprise infrared lens, thermal imaging assembly, described infrared lens comprises focusing lens chip module, the sliding axle mechanism be oppositely arranged, drive shaft mechanism, drive the motor of described drive shaft mechanism, the sliding shoe that described sliding axle mechanism comprises sliding axle and slides on described sliding axle, described drive shaft mechanism comprises rotation axis and movable drive block, the two ends of described focusing lens chip module are separately fixed on the sliding shoe of described sliding axle mechanism, the middle part of described focusing lens chip module is fixedly connected with the drive block of described drive shaft mechanism, described rotation axis connects described motor, described motor drives described rotation axis, the rotation of described rotation axis makes described drive block move forward and backward, the mobile of described drive block drives described focusing lens chip module to move on described sliding axle.
2. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, it is characterized in that, described sliding axle mechanism and described drive shaft mechanism are arranged in a triangle.
3. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, it is characterized in that, described drive shaft mechanism also comprises the latch-up structure locking described drive block movement.
4. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, is characterized in that, described sliding axle is arranged the moving limit position sensor group limiting described focusing lens chip module.
5. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, it is characterized in that, described drive shaft mechanism is self-locking ball screw.
6. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, it is characterized in that, described motor is reducing motor.
7. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 1, it is characterized in that, described sliding axle mechanism is multiple.
8. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 7, it is characterized in that, also comprise infrared imaging assembly, described infrared imaging assembly carried out to the damping of damping, described infrared imaging assembly comprises mount pad, described mount pad two ends arrange damping, and described damping comprises damping trough.
9. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 8, it is characterized in that, one end of described damping trough is sheet elastomer part.
10. the shock-resistant infrared thermal imaging device of high-precision electric according to claim 8, it is characterized in that, described damping and described mount pad are integral type structure.
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| CN201410850526.9A CN104501964B (en) | 2014-12-30 | 2014-12-30 | A kind of high-precision electric impact resistance infrared thermal imaging device |
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| CN201410850526.9A CN104501964B (en) | 2014-12-30 | 2014-12-30 | A kind of high-precision electric impact resistance infrared thermal imaging device |
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| CN104501964A true CN104501964A (en) | 2015-04-08 |
| CN104501964B CN104501964B (en) | 2017-10-17 |
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| CN107448539A (en) * | 2017-09-13 | 2017-12-08 | 烟台艾睿光电科技有限公司 | A kind of damping device for infrared thermal imaging component anti shock and vibration |
| CN107911578A (en) * | 2017-10-25 | 2018-04-13 | 广东欧珀移动通信有限公司 | Photomoduel and mobile terminal |
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| TW201439658A (en) * | 2013-04-08 | 2014-10-16 | Sintai Optical Shenzhen Co Ltd | Zoom lens and focusing mechanism for the optical apparatus |
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| CN104501964B (en) | 2017-10-17 |
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Address after: 1 No. 310023, No. 181, Wuchang Road, Wuchang Street, Yuhang District, Zhejiang, Hangzhou, 3 Applicant after: Sun Creative Zhejiang Technology Co., Ltd. Address before: 1 No. 310023, No. 181, Wuchang Road, Wuchang Street, Yuhang District, Zhejiang, Hangzhou, 3 Applicant before: Zhejiang Zhaosheng Technology Co., Ltd. |
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