阅读说明：本技术 一种内高温且并置的分布式光纤温度传感器 (Internal high-temperature juxtaposed distributed optical fiber temperature sensor ) 是由 翟慧阳 李陆军 侯尽然 张文冰 袁超 许春雷 龚盼盼 张志刚 蒋跃跃 于 2020-11-19 设计创作，主要内容包括：本发明公开了一种内高温且并置的分布式光纤温度传感器,包括温度传感器本体,温度传感器本体外侧设有内套管,内套管外侧设有外套管,温度传感器两端分别连接设有光纤,外套管两端均设有限位装置,光纤固定在限位装置内,限位装置包括调节架,调节架内设有调节腔,调节腔内设有丝杆一和丝杆二,丝杆一和丝杆二之间通过联轴器相连接,丝杆一和丝杆二上的螺纹为反向螺纹,丝杆一和丝杆二外侧均螺纹连接设有滑块,滑块一侧固定设有活动杆,活动杆远离滑块一端贯穿于调节腔并延伸至调节架外与防护环固定连接,光纤固定在防护环外侧。有益效果：从而方便了固定光纤,而且也便于了拆卸,给后期的检修和维护带来了方便。(The invention discloses an internal high-temperature juxtaposed distributed optical fiber temperature sensor, which comprises a temperature sensor body, wherein an inner sleeve is arranged on the outer side of the temperature sensor body, an outer sleeve is arranged on the outer side of the inner sleeve, optical fibers are respectively connected and arranged at two ends of the temperature sensor, limiting devices are respectively arranged at two ends of the outer sleeve, the optical fibers are fixed in the limiting devices, each limiting device comprises an adjusting frame, an adjusting cavity is arranged in each adjusting frame, a first lead screw and a second lead screw are arranged in each adjusting cavity, the first lead screw and the second lead screw are connected through a coupler, threads on the first lead screw and the second lead screw are reverse threads, sliders are respectively connected and arranged on the outer sides of the first lead screw and the second lead screw in a threaded manner, a movable rod is fixedly arranged on one side of each slider, one end. Has the advantages that: thereby facilitating the fixation of the optical fiber, facilitating the disassembly and bringing convenience to the later-stage overhaul and maintenance.)

1. The distributed optical fiber temperature sensor is characterized by comprising a temperature sensor body (1), wherein an inner sleeve (2) is arranged on the outer side of the temperature sensor body (1), an outer sleeve (3) is arranged on the outer side of the inner sleeve (2), optical fibers (6) are respectively connected and arranged at two ends of the temperature sensor body (1), limiting devices (5) are respectively arranged at two ends of the outer sleeve (3), the optical fibers (6) are fixed in the limiting devices (5), each limiting device (5) comprises an adjusting frame (7), an adjusting cavity (8) is arranged in each adjusting frame (7), a first lead screw (9) and a second lead screw (10) are arranged in each adjusting cavity (8), the first lead screw (9) is connected with the second lead screw (10) through a coupler (11), and threads on the first lead screw (9) and the second lead screw (10) are reverse threads, the first screw rod (9) and the second screw rod (10) are connected through threads to form a sliding block (12), a movable rod (13) is fixedly arranged on one side of the sliding block (12), the movable rod (13) is far away from one end of the sliding block (12) penetrates through the adjusting cavity (8) and extends to the outer portion of the adjusting frame (7) and the protecting ring (14) to be fixedly connected, and the optical fibers (6) are fixed to the outer side of the protecting ring (14).

2. The internally high temperature and juxtaposed distributed optical fiber temperature sensor according to claim 1, wherein fixing rings (15) are installed on both sides of the outer sleeve (3), and both ends of the fixing rings (15) are respectively fixedly connected with the outer sleeve (3) through locking bolts.

3. An internally elevated temperature and juxtaposed distributed optical fiber temperature sensor according to claim 2, wherein said outer sleeve (3) is a ceramic outer sleeve.

4. The high-temperature-inside juxtaposed distributed optical fiber temperature sensor as claimed in claim 3, wherein a limiting ring (4) is fixed inside the adjusting cavity (8), and one end of the first lead screw (9) penetrates through the limiting ring (4) and extends into the limiting ring (4).

5. The high-temperature-inside juxtaposed distributed optical fiber temperature sensor as claimed in claim 4, wherein one end of said second lead screw (10) penetrates through said adjusting cavity (8) and extends to the outside of said adjusting frame (7) to be provided with an adjusting knob (16).

6. The distributed optical fiber temperature sensor with high internal temperature and juxtaposition as claimed in claim 5, wherein the top of the adjusting cavity (8) is symmetrically provided with sliding grooves (17), and the movable rod (13) is matched with the sliding grooves (17).

7. An internal high temperature and juxtaposed distributed optical fiber temperature sensor according to claim 6, wherein said protective ring (14) is provided with an anti-slip wear pad (18) on a side thereof adjacent to said optical fiber (6).

Technical Field

The invention relates to an optical fiber temperature sensor, in particular to a high-temperature-inside juxtaposed distributed optical fiber temperature sensor.

Background

In recent inverter boards, switching surge voltage due to inductance of bus bars in inverter boards is increased by performing high-speed switching operation. Therefore, it is important to mitigate such switching surge voltages. In order to reduce inductance, it is effective to use a so-called laminated bus bar in which a bus bar for flowing a switching current to one end of a switching circuit for load control and a bus bar for flowing a switching current from the other end of the switching circuit face each other with an electrically insulating material interposed therebetween, and an optical fiber temperature sensor of the related art having patent publication No. CN104335019A employs a configuration in which: the optical fiber temperature sensor is formed by accommodating an optical cable in a frame body made of an extremely thin sheet material, the ultra-thin sheet is made of an insulation material which is equal to or more than that of the interlayer bus bar interlayer insulation material, a plurality of extremely thin cylindrical bodies made of the same material as the frame body are housed in a plurality of places inside the frame body, winding the optical cable on the extremely thin cylinders by a length equal to or longer than a distance resolution, without fixing, thereby forming a plurality of induction coils, and measuring the temperatures of the plurality of portions by the plurality of induction coils, the side surface portion of the housing being sealed with a silicone sealing material, the entire surface of the frame body is sealed by a sealing member made of a silicone-based liquid insulating material, and the optical cable itself and a filler having good thermal conductivity are fixed by an adhesive, so that the temperature measurement accuracy is reduced. However, the existing optical fiber temperature sensor has the problems of poor heat dissipation effect, poor protection effect and inconvenient installation.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The present invention is directed to a distributed optical fiber temperature sensor with high internal temperature and juxtaposed structure, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an internal high-temperature juxtaposed distributed optical fiber temperature sensor comprises a temperature sensor body, wherein an inner sleeve is arranged on the outer side of the temperature sensor body, an outer sleeve is arranged on the outer side of the inner sleeve, optical fibers are respectively connected and arranged at two ends of the temperature sensor body, limiting devices are respectively arranged at two ends of the outer sleeve, the optical fibers are fixed in the limiting devices, each limiting device comprises an adjusting frame, an adjusting cavity is arranged in each adjusting frame, a first lead screw and a second lead screw are arranged in each adjusting cavity, the first lead screw and the second lead screw are connected through a coupler, threads on the first lead screw and the second lead screw are reverse threads, sliders are respectively connected and arranged on the outer sides of the first lead screw and the second lead screw in a threaded manner, a movable rod is fixedly arranged on one side of each slider, one end, away from each slider, penetrates through the adjusting cavity and extends to, the optical fiber is fixed on the outer side of the protective ring.

Furthermore, the outer tube both sides all install and are equipped with solid fixed ring, gu fixed ring both ends respectively through locking bolt with outer tube fixed connection.

Further, the outer sleeve is a ceramic outer sleeve.

Furthermore, a limiting ring is fixedly arranged inside the adjusting cavity, and one end of the screw rod penetrates through the limiting ring and extends into the limiting ring.

Furthermore, one end of the second screw rod penetrates through the adjusting cavity and extends to the outside of the adjusting frame, and an adjusting knob is arranged.

Furthermore, the top of the adjusting cavity is symmetrically provided with sliding grooves, and the movable rod is matched with the sliding grooves.

Furthermore, the protective ring is close to one side of the optical fiber and is provided with an anti-skid wear-resistant pad.

The invention provides an internal high-temperature juxtaposed distributed optical fiber temperature sensor, which has the following beneficial effects:

(1) the outer sleeve is arranged, so that the heat dissipation effect of the temperature sensor is improved; through being equipped with stop device, be favorable to conveniently carrying out spacing fixed with optic fibre, prevent to appear rocking the unstability and cause optic fibre to buckle, when fixed, can be through manual operation, rotate lead screw two, under the cooperation of shaft coupling, drive lead screw one and rotate, because the screw thread on lead screw one and the lead screw two is reverse screw thread, thereby it takes place the relative movement to drive the slider, the slider drives the retaining ring and removes, until the retaining ring contacts with optic fibre, carry out spacing clamp to optic fibre through the retaining ring and fix, thereby fixed optic fibre has been made things convenient for, and the dismantlement has also been convenient for, it is convenient to have brought for maintenance and the maintenance in later stage.

(1) The optical fiber temperature sensor is convenient to mount by arranging the fixing ring, and the locking bolt is used for fixing, so that the disassembly is convenient; the ceramic outer sleeve is arranged, so that the heat dissipation effect of the temperature sensor is improved; the limiting ring is arranged to play a role in limiting and supporting the screw rod; the adjusting knob is arranged, so that the adjusting knob can be rotated to drive the first screw rod and the second screw rod to rotate, and manual operation is facilitated for installation and fixation; the sliding groove is arranged to match with the movable rod for movement adjustment; through being equipped with anti-skidding wear pad, play the wear-resisting effect of antiskid for more firm of installation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an internally high temperature and collocated distributed fiber optic temperature sensor according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a position limiting device in a high temperature and collocated distributed optical fiber temperature sensor according to an embodiment of the invention;

fig. 3 is a schematic diagram of an internal structure of a regulation frame in a high-temperature and collocated distributed optical fiber temperature sensor according to an embodiment of the invention.

Reference numerals:

1. a temperature sensor body; 2. an inner sleeve; 3. an outer sleeve; 4. a limiting ring; 5. a limiting device; 6. an optical fiber; 7. an adjusting bracket; 8. an adjustment chamber; 9. a first screw rod; 10. a second screw rod; 11. a coupling; 12. a slider; 13. a movable rod; 14. a guard ring; 15. a fixing ring; 16. adjusting a knob; 17. a chute; 18. an anti-skid wear-resistant pad.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-3, a distributed optical fiber temperature sensor with high internal temperature and juxtaposed according to an embodiment of the present invention includes a temperature sensor body 1, an inner sleeve 2 is disposed outside the temperature sensor body 1, an outer sleeve 3 is disposed outside the inner sleeve 2, two ends of the temperature sensor body 1 are respectively connected to optical fibers 6, two ends of the outer sleeve 3 are respectively provided with a limiting device 5, the optical fibers 6 are fixed in the limiting devices 5, the limiting device 5 includes an adjusting frame 7, an adjusting cavity 8 is disposed in the adjusting frame 7, a first lead screw 9 and a second lead screw 10 are disposed in the adjusting cavity 8, the first lead screw 9 and the second lead screw 10 are connected through a coupling 11, threads on the first lead screw 9 and the second lead screw 10 are reverse threads, and sliders 12 are respectively connected to outer sides of the first lead screw 9 and the second lead screw 10 through threads, a movable rod 13 is fixedly arranged on one side of the sliding block 12, one end, far away from the sliding block 12, of the movable rod 13 penetrates through the adjusting cavity 8 and extends out of the adjusting frame 7 to be fixedly connected with a protective ring 14, the optical fiber 6 is fixed on the outer side of the protective ring 14, and the outer sleeve 3 is arranged, so that the heat dissipation effect of the temperature sensor is improved; through being equipped with stop device 5, be favorable to conveniently carrying out spacing fixed with optic fibre 6, it causes optic fibre 6 to buckle to prevent to appear rocking the unstability, when fixed, can be through manual operation, rotate two 10 of lead screw, under shaft coupling 11's cooperation, it rotates to drive one 9 of lead screw, because the screw thread on one 9 of lead screw and the two 10 of lead screw is reverse screw thread, thereby it takes place the relative movement to drive slider 12, slider 12 drives guard ring 14 and removes, until guard ring 14 contacts with optic fibre 6, carry out spacing clamp to optic fibre 6 through guard ring 14 and fix, thereby fixed optic fibre 6 has been made things convenient for, and the dismantlement has also been convenient for, it is convenient to have brought for the maintenance and the maintenance in later stage.

Example two:

referring to fig. 1-3, for the outer sleeve 3, fixing rings 15 are installed on both sides of the outer sleeve 3, both ends of each fixing ring 15 are respectively and fixedly connected with the outer sleeve 3 through locking bolts, and the optical fiber temperature sensor is conveniently installed by installing the fixing rings 15, and the locking bolts are fixed, thereby facilitating disassembly. For the outer sleeve 3, the outer sleeve 3 is a ceramic outer sleeve, and the arrangement of the ceramic outer sleeve is favorable for improving the heat dissipation effect of the temperature sensor. For the adjusting cavity 8, the limiting ring 4 is fixedly arranged inside the adjusting cavity 8, one end of the first screw rod 9 penetrates through the limiting ring 4 and extends into the limiting ring 4, and the first screw rod 9 is limited and supported by the limiting ring 4. For the second screw rod 10, one end of the second screw rod 10 penetrates through the adjusting cavity 8 and extends to the outside of the adjusting frame 7 to be provided with an adjusting knob 16. For the adjusting cavity 8, sliding grooves 17 are symmetrically formed in the top of the adjusting cavity 8, and the movable rod 13 is matched with the sliding grooves 17. For the protection ring 14, the anti-skid wear-resistant pad 18 is arranged on one side of the protection ring 14 close to the optical fiber 6, and the adjustment knob 16 is arranged to rotate the adjustment knob 16 to drive the first screw rod 9 and the second screw rod 10 to rotate, so that the installation and fixation are convenient to perform by manual operation; the sliding groove 17 is arranged to match with the movable rod 13 for movement adjustment; by arranging the anti-skid wear-resistant pad 18, the anti-skid wear-resistant effect is achieved, and the installation is more stable.

In summary, with the above technical solution of the present invention, the working principle and all the beneficial effects are as follows: the outer sleeve 3 is arranged, so that the heat dissipation effect of the temperature sensor is improved; through being equipped with stop device 5, be favorable to conveniently carrying out spacing fixed with optic fibre 6, it causes optic fibre 6 to buckle to prevent to appear rocking the unstability, when fixed, can be through manual operation, rotate two 10 of lead screw, under shaft coupling 11's cooperation, it rotates to drive one 9 of lead screw, because the screw thread on one 9 of lead screw and the two 10 of lead screw is reverse screw thread, thereby it takes place the relative movement to drive slider 12, slider 12 drives guard ring 14 and removes, until guard ring 14 contacts with optic fibre 6, carry out spacing clamp to optic fibre 6 through guard ring 14 and fix, thereby fixed optic fibre 6 has been made things convenient for, and the dismantlement has also been convenient for, it is convenient to have brought for the maintenance and the maintenance in later stage. Through being equipped with solid fixed ring 15, conveniently install optical fiber temperature sensor, the locking bolt is fixed, has made things convenient for the dismantlement. Through being equipped with ceramic outer tube to be favorable to improving temperature sensor's radiating effect. The first screw rod 9 is limited and supported by the limiting ring 4. The adjusting knob 16 is arranged, so that the adjusting knob 16 can be rotated to drive the first screw rod 9 and the second screw rod 10 to rotate, and manual operation is facilitated for installation and fixation; the sliding groove 17 is arranged to match with the movable rod 13 for movement adjustment; by arranging the anti-skid wear-resistant pad 18, the anti-skid wear-resistant effect is achieved, and the installation is more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.