CH4 gas detector of optical device

Abstract

The utility model discloses a CH4 gas detector of an optical device, relates to the field of gas detection of optical devices, and provides the following scheme aiming at the problem that in the existing practical application, a packaged 2.0 mm window flat window pipe cap is not particularly ideal in product performance index when being used by a client, the CH4 gas detector comprises a pipe seat, a ceramic gasket is connected with the middle part of the upper end of the pipe seat, and the upper end of the ceramic gasket is provided with a hollow cavity; a ceramic gasket is arranged in the tube base, the ceramic gasket is of a detachable adjusting structure, a chip is connected to the upper end of the ceramic gasket, a coated glass sheet is connected to the outer side of the chip, a tube shell is connected to the outer end of the coated glass sheet and the four sides of the upper portion of the tube base, and a mm light-transmitting window is formed in the middle of the upper end of the tube shell. According to the utility model, the structure is novel, the sensitivity and accuracy of the detector are improved by adjusting the thickness of the ceramic gasket and controlling the height from the photosensitive surface of the chip to the glass surface, and the optical performance of the detector is improved by matching with the 3.0 mm light-transmitting window arranged at the middle part of the upper end of the tube shell.

Description

Technical Field

[0001] The utility model relates to the field of optical device gas detection, in particular to a CH4 gas detector of an optical device. Background Art

[0002] In the current market environment, the demand for gas leak detection technology is increasing. Among them, CH4 (methane) is a common greenhouse gas and a potential safety hazard, so the performance of its detector is particularly important.

[0003] At present, most CH4 detectors on the market adopt a standardized packaging structure, the most common of which is the 2.0mm window flat window cap design. However, although this design meets the basic detection needs to a certain extent, in actual applications, the performance indicators of the packaged 2.0mm window flat window cap are not particularly ideal when used by customers. Utility Model Content

[0004] The utility model provides a CH4 gas detector of an optical device, which solves the existing problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a CH detector, including a tube seat, a ceramic gasket is connected to the middle of the upper end of the tube seat, and the ceramic gasket is a detachable adjustment structure, a chip is connected to the upper end of the ceramic gasket, the ceramic gasket is used to adjust the height position of the chip, and a coated glass sheet is connected to the outer side of the chip, the outer end of the coated glass sheet and the four sides above the tube seat are connected to a tube shell, and a 3.0mm light-transmitting window is opened in the middle of the upper end of the tube shell, and the light-transmitting window opened on the tube shell is used to enhance the transmission signal.

[0006] Preferably, a circuit board is disposed at the lower end of the tube holder, and the circuit board is a flat columnar structure, and the cross-sectional area of ​​the circuit board is larger than the tube holder, and a pin is connected to the lower end of the circuit board.

[0007] Preferably, two fixing pins are connected to the middle part and one end of the upper end of the tube seat, and the outer ends of the fixing pins are connected to ceramic gaskets.

[0008] Preferably, a mounting slot is provided inside the ceramic gasket, and the slot matches the fixing pin, so that the ceramic gasket fits tightly with the pipe seat.

[0009] Preferably, the chip is arranged on the upper end of the ceramic gasket and is placed in the center of the tube seat, and the chip is used to convert the optical signal into an electrical signal for signal reception.

[0010] Preferably, the coated glass sheet is a circular cover structure, the outer corner of the upper end of the coated glass sheet is an arc-shaped smooth structure, and the coated glass sheet is connected to the upper end of the inner part of the tube shell.

[0011] Preferably, the tube shell is a cylindrical shell structure, the tube shell is used to encapsulate the internal parts of the CH detector, the upper groove inside the tube shell matches the coated glass sheet, and the coated glass sheet is correspondingly connected to the bottom of the light-transmitting window inside the tube shell.

[0012] The beneficial effects of the utility model are as follows: the device adjusts the thickness of the ceramic gasket to control the height from the photosensitive surface of the chip to the glass surface, so that the chip responsiveness reaches the best, the sensitivity and accuracy of the detector are improved, and a 3.0mm light-transmitting window is opened in the middle of the upper end of the tube shell to expand the detection field of the detector, improve the optical performance of the detector, and thus improve the performance index of the detector; the chip is installed in the center of the upper end of the ceramic gasket to ensure that the detection performance of the detector reaches the best, thereby improving the product coupling efficiency and product performance index. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structural disassembly of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] Figure 3 For the utility model Figure 2 sectional view of .

[0016] Numbers in the figure: 1, tube socket; 101, circuit board; 102, fixing pin; 2, ceramic gasket; 3, chip; 4, coated glass sheet; 5, tube shell; 6, light-transmitting window; 7, pin. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 3 A CH4 gas detector of an optical device includes a tube seat 1, a ceramic gasket 2 is connected to the middle of the upper end of the tube seat 1, and the ceramic gasket 2 is a detachable and adjustable structure, a chip 3 is connected to the upper end of the ceramic gasket 2, and the ceramic gasket 2 is used to adjust the height position of the chip 3, and a coated glass sheet 4 is connected to the outer side of the chip 3, and a tube shell 5 is connected to the outer end of the coated glass sheet 4 and the four sides above the tube seat 1, and a 3.0 mm light-transmitting window 6 is opened in the middle of the upper end of the tube shell 5, and the light-transmitting window 6 opened on the tube shell 5 is used to enhance the transmission signal.

[0019] refer to Figure 1 , Figure 2A circuit board 101 is arranged at the lower end of the tube holder 1, and the circuit board 101 is a flat and short columnar structure, and the cross-sectional area of ​​the circuit board 101 is larger than the tube holder 1. A pin 7 is connected to the lower end of the circuit board 101, and the pin 7 is welded on the circuit board 101 for transmitting electrical signals. Two fixing pins 102 are connected to the middle part and one end of the upper end of the tube holder 1, and the outer end of the fixing pin 102 is connected to a ceramic gasket 2. A mounting slot is provided inside the ceramic gasket 2, and the slot matches the fixing pin 102. The ceramic gasket 2 fits tightly with the tube holder 1. By adjusting the thickness of the ceramic gasket 2, the height from the photosensitive surface of the chip 3 to the glass surface is controlled, so that the responsiveness of the chip 3 is optimized, and the precise control of the focal length of the detector is realized, so that the detector can quickly determine the target. The chip 3 is arranged at the upper end of the ceramic gasket 2 and is placed in the center of the tube holder 1 to improve the detection performance of the detector. , and the chip 3 is used to convert the optical signal into an electrical signal for signal reception, the coated glass sheet 4 is a circular cover structure, the outer corner of the upper end of the coated glass sheet 4 is an arc-shaped smooth structure, the coated glass sheet 4 is connected to the upper end of the tube shell 5, and the coated glass sheet 4 is connected to the upper end of the chip 3 to increase the transmittance and protect the air tightness in the window; the tube shell 5 is a cylindrical shell structure, the tube shell 5 is used to encapsulate the internal parts of the CH4 detector, the groove at the upper end of the tube shell 5 matches the coated glass sheet 4, and the coated glass sheet 4 is correspondingly connected to the bottom of the light-transmitting window 6 inside the tube shell 5. By installing the coated glass sheet 4 inside the tube shell 5, the coated glass sheet 4 can effectively enhance the anti-interference ability of the detector and improve the detection accuracy. At the same time, the coated glass sheet 4 can also screen and filter the light to a certain extent, only allowing light of a specific frequency band to pass, thereby further improving the performance of the detector.

[0020] Working principle: First, mount the ceramic gasket 2 on the tube holder 1 to ensure that the ceramic gasket 2 fits tightly against the tube holder 1, and mount the chip 3 on the ceramic gasket 2. By adjusting the thickness of the ceramic gasket 2, the height from the photosensitive surface of the chip 3 to the glass surface is controlled to optimize the responsiveness of the chip 3. Ensure that the chip 3 is installed in the center of the tube holder 1 to improve the detection performance of the detector. Install the coated glass sheet 4 inside the tube shell 5. Finally, the tube shell 5 is used for packaging, and optical detection is performed through the 3.0 mm light-transmitting window 6 opened at the upper end of the tube shell 5.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CH4 gas detector of an optical device, comprising a tube holder (1), characterized in that: A ceramic gasket (2) is connected to the middle of the upper end of the tube seat (1), and the ceramic gasket (2) is a detachable and adjustable structure. A chip (3) is connected to the upper end of the ceramic gasket (2), and the ceramic gasket (2) is used to adjust the height position of the chip (3). A coated glass sheet (4) is connected to the outer side of the chip (3). A tube shell (5) is connected to the outer end of the coated glass sheet (4) and the four sides above the tube seat (1). A 3.0 mm light-transmitting window (6) is opened in the middle of the upper end of the tube shell (5). The light-transmitting window (6) opened on the tube shell (5) is used to enhance the transmission signal.

2. A CH4 gas detector of an optical device according to claim 1, characterized in that: A circuit board (101) is arranged at the lower end of the tube seat (1), and the circuit board (101) is a flat columnar structure, and the cross-sectional area of ​​the circuit board (101) is larger than that of the tube seat (1), and the lower end of the circuit board (101) is connected to a pin (7).

3. The CH4 gas detector of an optical device according to claim 1, characterized in that: Two fixing pins (102) are connected to the middle part and one end of the upper end of the tube seat (1), and the outer end of the fixing pin (102) is connected to a ceramic gasket (2).

4. A CH4 gas detector of an optical device according to claim 3, characterized in that: The ceramic gasket (2) is provided with a mounting slot hole inside, and the slot hole matches the fixing pin (102), so that the ceramic gasket (2) and the pipe seat (1) are tightly fitted.

5. The CH4 gas detector of an optical device according to claim 1, characterized in that: The chip (3) is arranged on the upper end of the ceramic gasket (2) and is placed in the center of the tube seat (1), and the chip (3) is used to convert optical signals into electrical signals for signal reception.

6. The CH4 gas detector of an optical device according to claim 1, characterized in that: The coated glass sheet (4) is a circular cover structure, the outer corner of the upper end of the coated glass sheet (4) is an arc-shaped smooth structure, and the coated glass sheet (4) is connected to the upper end of the tube shell (5).

7. A CH4 gas detector of an optical device according to claim 1, characterized in that The tube shell (5) is a cylindrical shell structure, and the tube shell (5) is used to encapsulate the internal parts of the CH4 detector. The upper groove inside the tube shell (5) matches the coated glass sheet (4), and the coated glass sheet (4) is correspondingly connected to the bottom of the light-transmitting window (6) inside the tube shell (5).

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