CN212082650U - Miniaturized fluorescence optic fibre temperature measurement module - Google Patents
Miniaturized fluorescence optic fibre temperature measurement module Download PDFInfo
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- CN212082650U CN212082650U CN202020445825.5U CN202020445825U CN212082650U CN 212082650 U CN212082650 U CN 212082650U CN 202020445825 U CN202020445825 U CN 202020445825U CN 212082650 U CN212082650 U CN 212082650U
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Abstract
The utility model provides a miniaturized fluorescence optic fibre temperature measurement module, it has optical device mounting means, circuit board and mount pad installation and fixed mode more loaded down with trivial details, the great problem of volume to solve current fluorescence temperature measurement module. The temperature measuring module comprises a mounting seat, an optical fiber connector arranged on the outer side of the front part of the mounting seat, a circuit board positioned in the mounting seat, a light emitting diode, a photoelectric detector, a ball lens and an optical filter; the circuit board is positioned at the rear side of the interior, and the light-emitting diode and the photoelectric detector are fixed on the front substrate surface of the circuit board; the ball lens, the optical filter and the photoelectric detector are sequentially positioned on the axis of the optical fiber connector from near to far; the circuit board is used for exciting the light emitting diode to emit light beams, the light beams are incident to the optical filter, are filtered and refracted by the optical filter, are incident to the ball lens, and are transmitted to the external optical fiber after being condensed by the ball lens; the photoelectric detector is used for receiving the light beams transmitted by the external optical fiber, the ball lens and the optical filter.
Description
Technical Field
The utility model belongs to fluorescence optical fiber measurement field, concretely relates to miniaturized fluorescence optical fiber temperature measurement module.
Background
At present, a fluorescent optical fiber temperature control system is composed of a temperature demodulation module, an optical fiber interface and a temperature measurement optical fiber containing fluorescent substances, wherein the temperature measurement optical fiber is connected with the temperature demodulation module through the optical fiber interface, and the temperature demodulation module is embedded in a shell of a temperature demodulator and only exposes out of the optical fiber interface. One end of the temperature measuring optical fiber is connected with the temperature demodulator, and the other end of the temperature measuring optical fiber contains fluorescent substances embedded in a measured temperature point. An excitation light source in the temperature demodulator transmits fluorescent powder in the excitation probe through the optical fiber, the fluorescent powder can emit different optical signals to the temperature demodulator at different temperatures, then the emitted optical signals are demodulated into electric signals in the temperature demodulator, specific temperature values are output, and the temperature measurement step is completed.
The fluorescence temperature measurement module is mainly used for temperature measurement in high-voltage, high-current and complex electromagnetic environments, and due to the limitation of installation environments, the fluorescence temperature measurement module needs to be small in size, light in weight, convenient to install and high in reliability as far as possible. For example, in chinese patent with application number 201910098744.4, which is named as an optical module and a photoelectric demodulation module for a fluorescent optical fiber temperature control system, two optical filters need to be arranged in an optical path, and thus, in an optical path with high requirement on installation accuracy, the installation process is complicated; the circuit board and the mounting seat are fixed through screws, mounting holes need to be processed on the circuit board and the mounting seat, and the existing mounting seat is large in size, needs a plurality of fixing points and is complex in mounting and fixing modes; and the existing circuit board is positioned outside the mounting seat, so that the volume of the photoelectric demodulation module is larger.
SUMMERY OF THE UTILITY MODEL
In order to solve the present fluorescence temperature measurement module and have optical device mounting means more loaded down with trivial details, circuit board and mount pad installation and fixed mode are more loaded down with trivial details to and the great technical problem of module volume, the utility model provides a miniaturized fluorescence optic fibre temperature measurement module.
In order to achieve the above purpose, the utility model provides a technical scheme is:
a miniaturized fluorescence optical fiber temperature measurement module is characterized in that: the device comprises a mounting seat, a circuit board, a light emitting diode, a photoelectric detector, an optical fiber connector, a ball lens and an optical filter; the optical fiber connector is arranged on the outer side of the front part of the mounting seat; the circuit board, the light-emitting diode and the photoelectric detector are positioned in the mounting seat, the circuit board is positioned on the rear side of the interior, and the light-emitting diode and the photoelectric detector are fixed on the front substrate surface of the circuit board;
the ball lens, the optical filter and the photoelectric detector are sequentially positioned on the axis of the optical fiber connector from near to far;
the circuit board is used for exciting the light emitting diode to emit light beams, the light beams are incident to the optical filter, are filtered and refracted by the optical filter, then are incident to the ball lens, and are transmitted to the external optical fiber after being condensed by the ball lens;
and the photoelectric detector is used for receiving the light beams transmitted by the external optical fiber, the ball lens and the optical filter.
Furthermore, the pin of the light emitting diode is bent towards one side of the photoelectric detector, and the intersection point of the light emitting diode emergent light beam and the light receiving light beam of the photoelectric detector is positioned on the axis of the optical fiber connector.
Further, the mounting seat comprises an upper mounting seat body and a lower mounting seat body;
the optical fiber connector is positioned on the outer side of the front part of the lower mounting seat body;
a circuit board mounting groove for mounting a circuit board is formed in the rear side of the interior of the lower mounting seat body, and the circuit board is mounted in the circuit board mounting groove;
the middle part of the lower mounting seat body is provided with a mounting channel communicated with the circuit board mounting groove; the ball lens and the optical filter are both arranged in the installation channel.
Furthermore, an inclined groove for installing the optical filter is arranged in the installation channel.
Furthermore, a positioning hole for mounting the ball lens is further formed in the mounting channel.
Furthermore, an L-shaped through groove is also formed in the lower mounting seat body, and two ends of the L-shaped through groove are respectively communicated with the circuit board mounting groove and the mounting channel;
the light-emitting diode is arranged in the L-shaped through groove, the luminous body of the light-emitting diode is positioned on one side close to the installation channel, and the pin of the light-emitting diode is bent and then connected with the circuit board.
Furthermore, the upper mounting seat body and the lower mounting seat body are made of plastic materials;
and a flexible protection sheet is arranged in the upper mounting seat body and at a position opposite to the ball lens and the optical filter.
Furthermore, a threaded hole is formed in the lower mounting seat body, a through hole matched with the threaded hole is formed in the upper mounting seat body, and the upper mounting seat body and the lower mounting seat body are fixed through screws.
Further, the flexible protection sheet is a sponge block;
the upper mounting base body is provided with a first mounting through hole, and the lower mounting base body is provided with a second mounting through hole at a position corresponding to the first mounting through hole.
Furthermore, the central line of the installation channel is vertical to the central line of the installation groove of the circuit board;
the center line of one end, close to the installation channel, of the L-shaped through groove is perpendicular to the center line of the installation channel.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses circuit board assembly is in the inside rear side of mount pad among the temperature measurement module, only is equipped with an optical filter on emitting light beam of emitting diode, through the optical filter to emitting light beam filtering, refraction of emitting light beam of emitting diode, and to the optical beam filtering, the transmission that outside optic fibre transmitted back, and photoelectric detector accepts the light beam after the optical filter transmission, and transmits to the circuit board, and this temperature measurement module optical device is few, and the mounting means is simple; the existing screw positioning connection mode of the circuit board and the mounting seat is eliminated, the circuit board is arranged in the mounting seat, and few optical devices are arranged, so that the volume of the temperature measurement module is small.
2. The utility model discloses emitting diode is buckled and is arranged among the temperature measurement module for emitting diode is crossing with photoelectric detector's light path, and this light path arrangement mode is simple, and the good reliability.
3. The utility model discloses the mount pad includes installation pedestal and installs the pedestal down to and be equipped with circuit board mounting groove, installation passageway, L shape in the installation pedestal down and lead to the groove, make things convenient for the adjustment of operating personnel high accuracy light path and circuit when the installation, light path, circuit lead to the inaccurate problem of structure because of the installation problem in avoiding the mount pad.
4. The utility model discloses go up installation pedestal and install the pedestal down and adopt the plastics material, can make things convenient for high accuracy processing, have the characteristics of process time weak point, do not conduct electromagnetism simultaneously, can realize light in weight, small simultaneously.
5. The utility model discloses be equipped with flexible screening glass in the last installation pedestal, play the guard action to ball lens and light filter, preferred flexible screening glass is the sponge piece, and is with low costs and simple to operate.
6. The lower mounting seat body of the utility model is provided with the chute, thereby realizing the positioning of the optical filter and facilitating the mounting; and the positioning hole is arranged, so that the positioning and installation of the ball lens are convenient to realize.
7. The utility model discloses be equipped with the installation through-hole on the mount pad, be convenient for install temperature measurement module on the PCB board.
Drawings
Fig. 1 is a first structural schematic diagram of the miniaturized fluorescence optical fiber temperature measurement module of the present invention (the upper mounting seat and the lower mounting seat are in a separated state);
fig. 2 is a second schematic structural diagram of the miniaturized fluorescence optical fiber temperature measurement module of the present invention (the upper mounting seat and the lower mounting seat are in a separated state);
FIG. 3 is a schematic structural view of the miniaturized fluorescence optical fiber temperature measurement module of the present invention without the upper mounting seat;
FIG. 4 is a first schematic structural diagram of a lower mounting base of the miniaturized fluorescence optical fiber temperature measurement module of the present invention;
FIG. 5 is a second schematic structural view of a lower mounting base of the miniaturized fluorescence fiber temperature measurement module of the present invention;
FIG. 6 is a first schematic structural diagram of an upper mounting seat body in the miniaturized fluorescence optical fiber temperature measurement module according to the present invention;
FIG. 7 is a second schematic structural view of an upper mounting seat body in the miniaturized fluorescence optical fiber temperature measurement module according to the present invention;
wherein the reference numbers are as follows:
1-mounting seat, 11-lower mounting seat body, 111-mounting channel, 112-L-shaped through groove, 113-inclined groove, 114-bump, 115-groove, 116-positioning hole, 117-threaded hole, 118-second mounting through hole, 119-circuit board mounting groove, 12-upper mounting seat body, 121-flexible protection plate, 122-through hole, 123-first mounting through hole, 2-circuit board, 3-light emitting diode, 31-luminous body, 32-pin, 4-photoelectric detector, 5-optical fiber connector, 6-ball lens and 7-optical filter.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1 and 2, a miniaturized fluorescence optical fiber temperature measurement module includes a mounting base 1, a circuit board 2, a light emitting diode 3, a photodetector 4, an optical fiber connector 5, a ball lens 6, and an optical filter 7; the mounting seat 1 comprises an upper mounting seat body 12 and a lower mounting seat body 11; the upper mounting seat body 12 and the lower mounting seat body 11 are made of plastic materials; as shown in fig. 3 and 4, the optical fiber connector 5 is located at the front outer side of the lower mounting base 11; the circuit board 2, the light emitting diode 3 and the photoelectric detector 4 are positioned in the lower mounting seat body 11, the circuit board 2 is positioned at the inner rear side, and the light emitting diode 3 and the photoelectric detector 4 are fixed on the front substrate surface of the circuit board 2; the ball lens 6 and the optical filter 7 are positioned in the lower mounting seat body 11, and the ball lens 6, the optical filter 7 and the photoelectric detector 4 are sequentially positioned on the axis of the optical fiber connector 5 from near to far; the circuit board 2 is used for exciting the light-emitting diode 3 to emit light beams, the light beams are incident to the optical filter 7, are filtered and refracted by the optical filter 7, are incident to the ball lens 6, and are transmitted to an external optical fiber after being condensed by the ball lens 6; the light beam transmitted back through the external optical fiber is transmitted through the ball lens 6 and the optical filter 7 in sequence and then received by the photoelectric detector 4.
As shown in fig. 5, a circuit board mounting groove 119 is formed in the rear side of the interior of the lower mounting base 11, and the circuit board 2 is mounted in the circuit board mounting groove 119; the middle part of the lower mounting seat body 11 is provided with a mounting channel 111, the mounting channel 111 is positioned at the front side of the circuit board mounting groove 119, and the inside of the optical fiber connector 5, the mounting channel 111 and the circuit board mounting groove 119 are sequentially communicated; the ball lens 6 and the optical filter 7 are both arranged in the installation channel 111, and the ball lens 6 is positioned at the front side of the optical filter 7; the photodetector 4 is mounted on the circuit board 2 and is located within the mounting channel 111.
In this embodiment, the photodetector 4 may be formed by patch welding, the pin 32 of the led 3 is bent toward one side of the photodetector 4, an intersection point of an outgoing light beam of the led 3 and a light beam received by the photodetector 4 is located on an axis of the optical fiber connector 5, an L-shaped through groove 112 is further disposed inside the lower mounting base 11, and two ends of the L-shaped through groove 112 are respectively communicated with the circuit board mounting groove 119 and the mounting channel 111; the light emitting diode 3 is arranged in the L-shaped through groove 112, the light emitting body 31 of the light emitting diode 3 is positioned at one side close to the mounting channel 111, and the pin 32 of the light emitting diode 3 is connected with the circuit board 2 after being bent.
In order to facilitate the positioning and installation of the optical filter 7, an inclined groove 113 is arranged in the installation channel 111, the optical filter 7 is installed in the inclined groove 113, in order to position the optical filter 7, a bump 114 and a groove 115 are respectively arranged on two side walls of the installation channel 111, one end of the optical filter 7 is located in the groove 115, and the other end of the optical filter 7 is located on the bump 114.
In order to facilitate the positioning and installation of the ball lens 6, positioning holes 116 are further formed in the installation channel 111, and the ball lens 6 is installed in the positioning holes 116.
The central line of the mounting channel 111 is vertical to the central line of the circuit board mounting groove 119, and the central line of one end of the L-shaped through groove 112 close to the mounting channel 111 is vertical to the central line of the mounting channel 111; the included angle between the center line of the optical filter 7 and the center line of the installation channel 111 is 45 degrees with the light beam emitted by the light emitting diode 3, and the included angle is 45 degrees.
As shown in fig. 6 and 7, a flexible protection sheet 121 is disposed in the upper mounting seat 12 at a position opposite to the ball lens 6 and the optical filter 7, and preferably, the flexible protection sheet 121 is a sponge block to protect the ball lens 6 and the optical filter 7.
As shown in fig. 3 and 6, a threaded hole 117 is formed in the lower mounting seat 11, a through hole 122 matched with the threaded hole 117 is formed in the upper mounting seat 12, and the upper mounting seat 12 and the lower mounting seat 11 are fixed by screws.
The upper mounting base 12 is provided with a first mounting through hole 123, and the lower mounting base 11 is provided with a second mounting through hole 118 at a position corresponding to the first mounting through hole 123, so that the temperature measuring module of the embodiment can be conveniently mounted on a PCB.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art on the basis of the main technical idea of the present invention belong to the technical scope to be protected by the present invention.
Claims (10)
1. The utility model provides a miniaturized fluorescence optic fibre temperature measurement module which characterized in that: the device comprises a mounting base (1), a circuit board (2), a light emitting diode (3), a photoelectric detector (4), an optical fiber connector (5), a ball lens (6) and an optical filter (7);
the optical fiber connector (5) is arranged on the outer side of the front part of the mounting seat (1);
the circuit board (2), the light-emitting diode (3) and the photoelectric detector (4) are positioned in the mounting seat (1), the circuit board (2) is positioned on the rear side of the interior, and the light-emitting diode (3) and the photoelectric detector (4) are fixed on the front substrate surface of the circuit board (2);
the ball lens (6) and the optical filter (7) are positioned in the mounting seat (1), and the ball lens (6), the optical filter (7) and the photoelectric detector (4) are sequentially positioned on the axis of the optical fiber connector (5) from near to far;
the circuit board (2) is used for exciting the light-emitting diode (3) to emit light beams, the light beams are incident to the optical filter (7), are filtered and refracted by the optical filter (7), are incident to the ball lens (6), and are transmitted to an external optical fiber after being condensed by the ball lens (6);
the photoelectric detector (4) is used for receiving the light beams transmitted by the external optical fiber, transmitted by the ball lens (6) and transmitted by the optical filter (7).
2. The miniaturized fluorescence optical fiber thermometry module of claim 1, wherein: the base pin of the light-emitting diode (3) is bent towards one side of the photoelectric detector (4), and the intersection point of the light beam emitted by the light-emitting diode (3) and the light beam received by the photoelectric detector (4) is positioned on the axis of the optical fiber connector (5).
3. The miniaturized fluorescence optical fiber thermometry module of claim 2, wherein: the mounting seat (1) comprises an upper mounting seat body (12) and a lower mounting seat body (11);
the optical fiber connector (5) is positioned on the outer side of the front part of the lower mounting seat body (11);
a circuit board mounting groove (119) for mounting the circuit board (2) is formed in the rear side of the interior of the lower mounting base body (11);
the middle part of the lower mounting seat body (11) is provided with a mounting channel (111) communicated with the circuit board mounting groove (119); the ball lens (6) and the optical filter (7) are both arranged in the installation channel (111).
4. The miniaturized fluorescence optical fiber thermometry module of claim 3, wherein: an inclined groove (113) for mounting the optical filter (7) is arranged in the mounting channel (111).
5. The miniaturized fluorescence optical fiber thermometry module of claim 4, wherein: and a positioning hole (116) for mounting the ball lens (6) is also arranged in the mounting channel (111).
6. The miniaturized fluorescence optical fiber thermometry module of claim 5, wherein: an L-shaped through groove (112) is further formed in the lower mounting base body (11), and two ends of the L-shaped through groove (112) are respectively communicated with the circuit board mounting groove (119) and the mounting channel (111);
the light-emitting diode (3) is arranged in the L-shaped through groove (112), the luminous body (31) of the light-emitting diode (3) is positioned on one side close to the installation channel (111), and the pin (32) of the light-emitting diode (3) is bent and then connected with the circuit board (2).
7. The miniaturized fluorescence optical fiber thermometry module of claim 6, wherein: the upper mounting base body (12) and the lower mounting base body (11) are made of plastic materials;
and a flexible protection sheet (121) is arranged in the upper mounting seat body (12) at a position opposite to the ball lens (6) and the optical filter (7).
8. The miniaturized fluorescence optical fiber thermometry module of claim 7, wherein: the lower mounting base body (11) is provided with a threaded hole (117), the upper mounting base body (12) is provided with a through hole (122) matched with the threaded hole (117), and the upper mounting base body (12) and the lower mounting base body (11) are fixed through screws.
9. The miniaturized fluorescence optical fiber thermometry module of claim 8, wherein: the flexible protection sheet (121) is a sponge block;
the upper mounting base body (12) is provided with a first mounting through hole (123), and the lower mounting base body (11) is provided with a second mounting through hole (118) at a position corresponding to the first mounting through hole (123).
10. The miniaturized fluorescence optical fiber thermometry module of claim 9, wherein: the central line of the mounting channel (111) is vertical to the central line of the circuit board mounting groove (119);
the center line of one end, close to the mounting channel (111), of the L-shaped through groove (112) is perpendicular to the center line of the mounting channel (111).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020445825.5U CN212082650U (en) | 2020-03-31 | 2020-03-31 | Miniaturized fluorescence optic fibre temperature measurement module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020445825.5U CN212082650U (en) | 2020-03-31 | 2020-03-31 | Miniaturized fluorescence optic fibre temperature measurement module |
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| CN212082650U true CN212082650U (en) | 2020-12-04 |
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| CN202020445825.5U Active CN212082650U (en) | 2020-03-31 | 2020-03-31 | Miniaturized fluorescence optic fibre temperature measurement module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337158A (en) * | 2020-03-31 | 2020-06-26 | 西安和其光电科技股份有限公司 | Miniaturized fluorescence optic fibre temperature measurement system |
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2020
- 2020-03-31 CN CN202020445825.5U patent/CN212082650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337158A (en) * | 2020-03-31 | 2020-06-26 | 西安和其光电科技股份有限公司 | Miniaturized fluorescence optic fibre temperature measurement system |
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