Portable thin thermal imager

Abstract

The utility model discloses a portable thin thermal imager, which comprises a shell with an inner cavity, a display screen and a keyboard which are embedded in the front side of the shell, and an infrared thermal imaging camera, a visible light camera, a lens interface board, a main control board, a screen driving board, a key interface board and a battery which are arranged in the inner cavity of the shell, the main control board is respectively connected with the lens interface board, the screen driving board, the key interface board and the battery; the lens interface board is respectively connected with the infrared thermal imaging camera and the visible light camera; the key interface board is connected with the keyboard, and the screen driving board is connected with the display screen; the lens interface board, the main control board, the screen driving board and the key interface board are sequentially laid in an inner cavity of the shell from top to bottom; the battery is arranged on the back surface of the key interface board, and a protection sheet is arranged between the key interface board and the battery; a lens mounting plate and a lens fixing seat are sequentially arranged on the back surface of the lens interface plate; and the infrared thermal imaging camera and the visible light camera are arranged between the lens mounting plate and the lens fixing seat. The thermal imager is compact in overall structure, an operator can put the thermal imager into a pocket to carry the thermal imager, and the thermal imager is flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal imagers, in particular to a portable thin thermal imager. Background Art

[0002] The working principle of an infrared thermal imager is to observe the object to be measured through temperature difference. Most traditional infrared thermal imagers are single-handed handheld types, and their structures include a display screen arranged on the upper part and a handle arranged on the lower part. Considering ergonomics, the space in the upper cavity is relatively large and the structure is not compact enough. Therefore, the overall volume of the thermal imager is relatively large, and it must be carried using a tool bag or toolbox, which is very inconvenient to use in some scenarios. Content of the Utility Model

[0003] The purpose of the utility model is to provide a portable thin thermal imager. By separately and independently designing a lens interface board, a main control board, a screen driver board, and a key interface board, and arranging the four circuit boards in a flat layout from top to bottom in the inner cavity of the housing, and installing an infrared thermal imaging camera and a visible light camera on the back of the lens interface board, and arranging the battery on the back of the key interface board, the overall structure is compact, which is convenient for the instrument body to be thinned and lightened, so that the operator can put the thermal imager into his pocket for carrying, which is flexible and convenient.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A portable thin thermal imager includes a housing with an inner cavity, a display screen and a keypad embedded in the front side of the housing, and an infrared thermal imaging camera, a visible light camera, a lens interface board, a main control board, a screen driver board, a key interface board, and a battery installed in the inner cavity of the housing; the main control board is respectively connected to the lens interface board, the screen driver board, the key interface board, and the battery; the lens interface board is respectively connected to the infrared thermal imaging camera and the visible light camera; the key interface board is connected to the keypad, and the screen driver board is connected to the display screen; the lens interface board, the main control board, the screen driver board, and the key interface board are arranged in a flat layout from top to bottom in the inner cavity of the housing; the battery is arranged on the back of the key interface board, and a protection sheet is arranged between the key interface board and the battery; a lens mounting board and a lens fixing seat are successively arranged on the back of the lens interface board; the infrared thermal imaging camera and the visible light camera are installed between the lens mounting board and the lens fixing seat.

[0006] Preferably, the housing includes a back plate and a front shell detachably connected to the back plate; the back plate is provided with a raised seat corresponding to the lens fixing seat.

[0007] Preferably, the raised seat is provided with a first lens hole corresponding to the lens of the infrared thermal imaging camera; a germanium lens is arranged on the front side of the lens of the infrared thermal imaging camera, the germanium lens is placed on the inner end face of the first lens hole, and the outer diameter of the germanium lens is larger than the inner diameter of the first lens hole.

[0008] Preferably, a second lens hole is provided in the convex base corresponding to the lens of the visible light camera; a PC lens is provided on the front side of the lens of the visible light camera, the PC lens is placed on the inner end face of the second lens hole, and the outer diameter of the PC lens is greater than the inner diameter of the second lens hole.

[0009] Preferably, a first mounting hole is provided in the lens fixing base corresponding to the infrared thermal imaging camera, the lens of the infrared thermal imaging camera extends into the first mounting hole for installation, and the germanium lens is located on the outer end face of the first mounting hole; a second mounting hole is provided in the lens fixing base corresponding to the visible light camera, the lens of the visible light camera extends into the second mounting hole for installation, and the PC lens is located on the outer end face of the second mounting hole.

[0010] Preferably, a power management module electrically connected to the battery is provided on the main control board.

[0011] Adopting the above solution, the beneficial effects of the present utility model are:

[0012] In the present utility model, the lens interface board, the main control board, the screen driver board, and the button interface board are separately and independently designed, and the four circuit boards are arranged flatly in sequence from top to bottom in the inner cavity of the housing. The infrared thermal imaging camera and the visible light camera are installed on the back of the lens interface board, and the battery is provided on the back of the button interface board. The overall structure is compact, which is convenient for the instrument body to be thinned, so that the operator can put the thermal imager into the pocket for carrying, which is flexible and convenient. At the same time, it is convenient for instrument upgrading, enhancing the versatility of the circuit board, and reducing the maintenance cost when a certain circuit board fails. In addition, the infrared thermal imaging camera and the visible light camera are modularly assembled and fixed by setting the lens mounting board and the lens fixing base, and the assembly line operation is utilized. Description of the Drawings

[0013] Figure 1 is the front perspective three-dimensional view of the present utility model;

[0014] Figure 2 is the rear perspective three-dimensional view of the present utility model;

[0015] Figure 3 is the front perspective three-dimensional view of the internal structure of the present utility model;

[0016] Figure 4 is the rear perspective three-dimensional view of the internal structure of the present utility model;

[0017] Figure 5 is the exploded view of the lens mounting board and the lens fixing base of the present utility model;

[0018] Figure 6 is the principle block diagram of the present utility model;

[0019] Among them, the description of the attached drawing reference numerals:

[0020] 1—Outer shell, 2—Display screen,

[0021] 3—Keyboard, 4—Infrared thermal imaging camera,

[0022] 5—Visible light camera, 6—Lens interface board,

[0023] 7—Main control board, 8—Screen driver board,

[0024] 9—Button interface board, 10—Battery,

[0025] 11—Protective sheet, 12—Lens mounting board,

[0026] 13—Lens fixing seat, 14—Raised seat,

[0027] 15—Germanium lens, 16—PC lens,

[0028] 101—Back plate, 102—Front shell. Detailed implementation mode

[0029] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and not for limiting the present utility model. Additionally, it should be noted that for the sake of convenience in description, only parts related to the present utility model rather than all structures are shown in the accompanying drawings.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0031] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0032] Refer to Figures 1 to 6As shown in the figure, the present utility model provides a portable thin thermal imager, which includes a housing 1 with an inner cavity, a display screen 2 embedded in the front side of the housing 1, a keypad 3, an infrared thermal imaging camera 4, a visible light camera 5, a lens interface board 6, a main control board 7, a screen driver board 8, a key interface board 9, and a battery 10 installed in the inner cavity of the housing 1; the main control board 7 is respectively connected to the lens interface board 6, the screen driver board 8, the key interface board 9, and the battery 10; the lens interface board 6 is respectively connected to the infrared thermal imaging camera 4 and the visible light camera 5; the key interface board 9 is connected to the keypad 3, and the screen driver board 8 is connected to the display screen 2; the lens interface board 6, the main control board 7, the screen driver board 8, and the key interface board 9 are arranged flat in the inner cavity of the housing 1 from top to bottom in sequence; the battery 10 is arranged on the back of the key interface board 9, and a protection sheet 11 is arranged between the key interface board 9 and the battery 10; specifically, the protection sheet 11 is a plastic sheet, and the key interface board 9 and the battery 10 are separated by the plastic sheet, so as to avoid puncturing the battery 10 when pressing the keys on the keypad 3.

[0033] Wherein, a lens mounting plate 12 and a lens fixing seat 13 are sequentially arranged on the back of the lens interface board 6; the infrared thermal imaging camera 4 and the visible light camera 5 are installed between the lens mounting plate 12 and the lens fixing seat 13.

[0034] The present utility model separately designs the lens interface board 6, the main control board 7, the screen driver board 8, and the key interface board 9 independently: 1) Without changing the main control board 7, the screen driver board 8, and the key interface board 9, other cameras with different resolutions can be upgraded by modifying the lens interface board 6, which is convenient for instrument upgrade; 2) One kind of circuit board can be applicable to different models, which is convenient for production and stock preparation and enhances the versatility of the circuit board; 3) When a certain circuit board fails, the faulty circuit board can be replaced separately, reducing the maintenance cost.

[0035] In addition, the four circuit boards are arranged flat in the inner cavity of the housing 1 from top to bottom in sequence, the infrared thermal imaging camera 4 and the visible light camera 5 are installed on the back of the lens interface board 6, and the battery 10 is arranged on the back of the key interface board 9, so that the space in the inner cavity of the housing 1 can be made very narrow, and thus the body of the thermal imager can be made very thin, which is convenient for the operator to put it into the pocket and carry, being flexible and convenient.

[0036] Wherein, the housing 1 includes a back plate 101 and a front shell 102 detachably connected to the back plate 101. Since the infrared thermal imaging camera 4, the visible light camera 5, and the circuit boards will generate heat during operation, in a specific embodiment, the housing 1 is made of aluminum alloy material, which is convenient for the whole machine to dissipate heat quickly and ensures the normal operation of the thermal imager.

[0037] If the lenses of the infrared thermal imaging camera 4 and the visible light camera 5 are blocked, vignetting is very likely to occur. In the present utility model, a raised seat 14 is provided on the back plate 101 corresponding to the lens fixing seat 13. After the infrared thermal imaging camera 4 and the visible light camera 5 are fixed by the lens fixing seat 13, they are embedded in the raised seat 14 for installation, so as to prevent the lenses of the infrared thermal imaging camera 4 and the visible light camera 5 from being blocked. At the same time, the back plate 101 is provided with the raised seat 14 only at the positions corresponding to the infrared thermal imaging camera 4 and the visible light camera 5, ensuring that the body at other positions can still be made very thin.

[0038] A first lens hole is provided in the raised seat 14 corresponding to the lens of the infrared thermal imaging camera 4; a germanium lens 15 is provided on the front side of the lens of the infrared thermal imaging camera 4. The germanium lens 15 is placed on the inner end surface of the first lens hole, and the outer diameter of the germanium lens 15 is larger than the inner diameter of the first lens hole, so as to prevent the germanium lens 15 from falling out.

[0039] A second lens hole is provided in the raised seat 14 corresponding to the lens of the visible light camera 5; a PC lens 16 is provided on the front side of the lens of the visible light camera 5. The PC lens 16 is placed on the inner end surface of the second lens hole, and the outer diameter of the PC lens 16 is larger than the inner diameter of the second lens hole, so as to prevent the PC lens 16 from falling out.

[0040] Preferably, the centers of the first lens hole and the second lens hole are located on the same horizontal line. By providing the germanium lens 15 or the PC lens 16 on the front side of the lens, it is beautiful and generous, and effectively prevents dust and other contaminants from polluting the lens.

[0041] The lens fixing seat 13 is provided with a first mounting hole corresponding to the infrared thermal imaging camera 4. The lens of the infrared thermal imaging camera 4 extends into the first mounting hole for installation, and the germanium lens 15 is located on the outer end surface of the first mounting hole; the lens fixing seat 13 is provided with a second mounting hole corresponding to the visible light camera 5. The lens of the visible light camera 5 extends into the second mounting hole for installation, and the PC lens 16 is located on the outer end surface of the second mounting hole.

[0042] An installation groove is provided on the lens mounting plate 12 corresponding to each of the infrared thermal imaging camera 4 and the visible light camera 5. When assembling the infrared thermal imaging camera 4 and the visible light camera 5, first place the infrared thermal imaging camera 4 and the visible light camera 5 into the corresponding installation grooves for fixing, then buckle the lens fixing seat 13 on the back of the lens mounting plate 12, so that the lens of the infrared thermal imaging camera 4 extends into the first mounting hole and the lens of the visible light camera 5 extends into the second mounting hole. Finally, use screws to lock the lens fixing seat 13 to the back of the lens mounting plate 12 to realize the assembly and fixation of the infrared thermal imaging camera 4 and the visible light camera 5. The structural design of the lens mounting plate 12 and the lens fixing seat 13 realizes the modularization of the assembly structure and facilitates the assembly operation on the assembly line.

[0043] In addition, a power management module electrically connected to the battery 10 is provided on the main control board 7.

[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model. Obviously, the above embodiments of the present utility model are merely examples given to clearly illustrate the present utility model and are not limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A portable thin thermal imager, characterized in that: The invention comprises a shell with an inner cavity, a display screen and a keypad embedded in the front side of the shell, and an infrared thermal imaging camera, a visible light camera, a lens interface board, a main control board, a screen drive board, a key interface board, and a battery installed in the inner cavity of the shell; the main control board is respectively connected to the lens interface board, the screen drive board, the key interface board, and the battery; the lens interface board is respectively connected to the infrared thermal imaging camera and the visible light camera; the key interface board is connected to the keypad, and the screen drive board is connected to the display screen; the lens interface board, the main control board, the screen drive board, and the key interface board are arranged in the inner cavity of the shell in sequence from top to bottom; the battery is arranged on the back of the key interface board, and a protective sheet is arranged between the key interface board and the battery; a lens mounting plate and a lens fixing seat are arranged in sequence on the back of the lens interface board; the infrared thermal imaging camera and the visible light camera are installed between the lens mounting plate and the lens fixing seat.

2. The portable thin thermal imager according to claim 1, characterized in that: The shell comprises a back plate and a front shell detachably connected to the back plate; the back plate is provided with a raised seat corresponding to the lens fixing seat.

3. The portable thin thermal imager according to claim 2, characterized in that: The protruding seat is provided with a first lens hole corresponding to the lens of the infrared thermal imaging camera; a germanium lens is provided on the front side of the lens of the infrared thermal imaging camera, the germanium lens is placed on the inner end surface of the first lens hole, and the outer diameter of the germanium lens is greater than the inner diameter of the first lens hole.

4. The portable thin thermal imager according to claim 3, characterized in that: The protruding seat is provided with a second lens hole corresponding to the lens of the visible light camera; a PC lens is provided on the front side of the lens of the visible light camera, the PC lens is placed on the inner end surface of the second lens hole, and the outer diameter of the PC lens is larger than the inner diameter of the second lens hole.

5. The portable thin thermal imager according to claim 4, characterized in that: The lens fixing seat is provided with a first mounting hole corresponding to the infrared thermal imaging camera, the lens of the infrared thermal imaging camera is inserted into the first mounting hole for installation, and the germanium lens is located on the outer end surface of the first mounting hole; the lens fixing seat is provided with a second mounting hole corresponding to the visible light camera, the lens of the visible light camera is inserted into the second mounting hole for installation, and the PC lens is located on the outer end surface of the second mounting hole.

6. The portable thin thermal imager according to claim 1, characterized in that: The main control board is provided with a power management module electrically connected to the battery.

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