CN112539851B - Ceramic silver-coated NTC temperature sensor and production method thereof - Google Patents
Ceramic silver-coated NTC temperature sensor and production method thereof Download PDFInfo
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- CN112539851B CN112539851B CN202011417492.6A CN202011417492A CN112539851B CN 112539851 B CN112539851 B CN 112539851B CN 202011417492 A CN202011417492 A CN 202011417492A CN 112539851 B CN112539851 B CN 112539851B
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Abstract
The invention discloses a ceramic silver-coated NTC temperature sensor and a production method thereof, the ceramic silver-coated NTC temperature sensor comprises a connecting plate, wherein one side of the connecting plate is fixedly connected with a first pipe body, the inner side wall of the first pipe body is fixedly connected with a sensor at one side of the connecting plate, the outer side of the sensor is provided with an insulating layer, the outer side of the insulating layer is provided with a compression-resistant layer, the outer side wall of the first pipe body is welded with a fixed plate, the inner part of the fixed plate is fixedly connected with a first bearing, the inner ring of the first bearing is fixedly connected with a rotating shaft, and one end of the bottom of the rotating shaft is welded with a supporting plate; thereby the compression resistance and the insulativity of the NTC temperature sensor are enhanced, and the reaction speed of the NTC temperature sensor is also improved.
Description
Technical Field
The invention relates to the technical field of application of temperature sensors, in particular to a ceramic silver-coated NTC temperature sensor and a production method thereof.
Background
The existing NTC temperature sensor product industry is dominant in demand and is obviously pulled by downstream industries, so that the market demands of NTC temperature sensors are increased by the development of industries such as automobiles, new energy sources, household appliances, medical treatment and the like. It is expected that the industries of automobiles, new energy sources, household appliances and the like will steadily increase in the future, and the development of the NTC thermistor market will be further promoted.
When the ceramic silver coating technology is applied to the NTC temperature sensor, certain static electricity and pressure can be generated in the operation process of the ceramic silver coating technology, and the heat and the pressure can have negative influence on the operation of the NTC temperature sensor; because the NTC temperature sensor does not have the functions of pressure resistance and insulation, the reaction temperature of the NTC temperature sensor can be reduced;
meanwhile, the temperature of each position of processing equipment cannot be completely uniform in the operation process of the ceramic silver coating process, so that an NTC temperature sensor is required to be moved to different positions of the equipment for temperature sensing; because the existing NTC temperature sensor does not have the function of fixing and clamping, the NTC temperature sensor cannot perform fixed induction at different positions on equipment, and therefore, the ceramic silver-coated technology NTC temperature sensor and a production method thereof are provided.
Disclosure of Invention
The invention aims to provide a ceramic silver-coated NTC temperature sensor and a production method thereof, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a pottery is by silver technique NTC temperature sensor, includes the connecting plate, one side fixedly connected with first body of connecting plate, the inside wall of first body and be located one side fixedly connected with sensor of connecting plate, the outside of sensor is equipped with the insulating layer, the outside of insulating layer is equipped with the compressive layer, the lateral wall welding of first body has the fixed plate, the inside fixedly connected with first bearing of fixed plate, the inner circle fixedly connected with pivot of first bearing, the bottom one end welding of pivot has the backup pad, the bottom welding of backup pad has the dead lever that is two in quantity, two the bottom welding of dead lever has the baffle, the screw thread groove has been seted up to the inside of baffle, the inside wall threaded connection of screw thread groove has the threaded rod, the bottom one end of threaded rod runs through in the inside of screw thread groove and fixedly connected with second bearing, the bottom welding of connecting block has the fixed connection piece, the outside welding of baffle has the quantity to be two supports, two adjacent one side of support all rotates to be connected with special-shaped gear, the outer side of pinion and rack and the opposite, the opposite side of two opposite side of the opposite swing joint has the rack is connected with the first one end, the opposite swing joint has the opposite to the rack, the opposite swing joint has the first one end, the opposite swing joint has the rack to rotate the opposite, and the opposite swing joint.
As a further preferred aspect of the present invention: the outside fixedly connected with spring of compressive layer, the one end welding that the compressive layer was kept away from to the spring has the inserted block.
As a further preferred aspect of the present invention: the outer side wall fixedly connected with first magnetic path of first body, the cell body has been seted up to the inside of first body, the inside wall sliding connection of cell body has the second body, the recess has been seted up to outer wall one side of second body.
As a further preferred aspect of the present invention: one end of the second pipe body is hinged with a movable door, one side of the movable door is welded with a handle, the other side of the movable door is fixedly connected with a second magnetic block, the outer side of the second magnetic block is adsorbed and connected with a third magnetic block, and the outer side of the third magnetic block is fixedly connected with the inner part of the second pipe body.
As a further preferred aspect of the present invention: the inside of connecting plate has been seted up logical groove, the power input end electric connection of sensor has the wire, the one end of wire runs through in the inside of logical groove and extends to the outside of connecting plate.
As a further preferred aspect of the present invention: one end of the threaded rod, which is far away from the second bearing, penetrates through the inside of the thread groove and is fixedly connected with a lug.
In addition, the invention also provides a method for producing the ceramic silver-coated NTC temperature sensor, which comprises the following steps:
step one, preparing raw materials, namely mixing tetrabutyl titanate and alcohol in a solution by using a proportioning container, wherein the proportioning ratio is 2:1, a step of; regulating the indoor temperature to 20-25 ℃, and stirring the mixed solution for 1 hour by using a stirring container to obtain a clear solution;
step two, firing the sol, placing the prepared clear solution in a heating container for heating, regulating the temperature of the heating container to 100-120 ℃, injecting zirconium nitrate and calcium nitrate into the heating container in the heating process of the clear solution, and finally preparing the sol after heating for 3 hours;
step three, calcining to prepare powder, and placing the sol into a high-temperature coking furnace with the temperature of 380-420 ℃ for coking for 2-3 hours; after coking treatment, preparing black foam; placing the black foam into a high-temperature calciner for calcination for 2-4 hours to finally prepare ceramic nano powder;
and fourthly, carrying out cost processing, granulating and stamping on the ceramic nano powder by using injection molding equipment, mixing silver powder and the ceramic nano powder to prepare a ceramic green body, and then placing the ceramic green body into a high-temperature furnace for firing to finally finish the silver coating process of the ceramic.
As a further preferred aspect of the present invention: in the fourth step, the heating temperature of the high-temperature furnace to the ceramic green body is 700-850 ℃ and the heating time is 3-4 hours.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the insulating layer made of rubber is arranged on the outer side of the sensor, and the compression-resistant layer made of polyethylene is arranged on the outer side of the insulating layer, so that the problem of integration of NTC on ceramics is solved, and the traditional structural arrangement is overturned; thereby enhancing the compression resistance and the insulativity of the NTC temperature sensor and improving the reaction speed of the NTC temperature sensor;
2. according to the invention, the threaded groove is formed in the baffle, and the threaded rod is arranged in the threaded groove, so that the threaded rod can drive the connecting block to move when moving; through the arrangement of the special-shaped gear and the rack, when the rack moves under the action of the connecting block, the special-shaped gear can be driven to rotate, so that the special-shaped gear can drive the clamping block to move through the first connecting arm and the movable rod; through the arrangement, the NTC temperature sensor can perform fixed induction at different positions on the equipment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of a rack and a special-shaped gear of the invention;
FIG. 3 is a schematic view of the structure of the threaded rod and the connecting block of the present invention;
FIG. 4 is a schematic view of the structure of an insulating layer and a compressive layer according to the present invention;
fig. 5 is a schematic structural diagram of a first tube and a second tube according to the present invention.
In the figure: 1. a connecting plate; 2. a sensor; 3. a first tube body; 4. a fixing plate; 5. a first bearing; 6. a rotating shaft; 7. a support plate; 8. a fixed rod; 9. a baffle; 10. a bracket; 11. a plate body; 12. a thread groove; 13. a threaded rod; 14. a connecting block; 15. a second bearing; 16. a rack; 17. a special-shaped gear; 18. a first connecting arm; 19. a second connecting arm; 20. a movable rod; 21. clamping blocks; 22. an insulating layer; 23. a compression-resistant layer; 24. a spring; 25. inserting blocks; 26. a first magnetic block; 27. a tank body; 28. a groove; 29. a second tube body; 30. a movable door; 31. a handle; 32. a second magnetic block; 33. a third magnetic block; 34. a bump; 35. a wire; 36. and (5) through grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-5, the present invention provides a technical solution: the ceramic silver-coated NTC temperature sensor comprises a connecting plate 1, a first pipe body 3 is fixedly connected to one side of the connecting plate 1, a sensor 2 is fixedly connected to the inner side wall of the first pipe body 3 and positioned on one side of the connecting plate 1, an insulating layer 22 is arranged on the outer side of the sensor 2, a compression-resistant layer 23 is arranged on the outer side of the insulating layer 22, a fixing plate 4 is welded to the outer side wall of the first pipe body 3, a first bearing 5 is fixedly connected to the inner side of the fixing plate 4, a rotating shaft 6 is fixedly connected to the inner ring of the first bearing 5, a supporting plate 7 is welded to one end of the bottom of the rotating shaft 6, two fixing rods 8 are welded to the bottoms of the supporting plate 7, a baffle 9 is welded to the bottoms of the two fixing rods 8, a thread groove 12 is formed in the inner side wall of the baffle 9, a threaded rod 13 is connected to the inner side wall of the thread groove 12, the bottom end of the threaded rod 13 penetrates through the inside of the threaded groove 12 and is fixedly connected with a second bearing 15, the outer ring of the second bearing 15 is fixedly connected with a connecting block 14, racks 16 are welded at the bottom of the connecting block 14, two supports 10 are welded at the outer sides of the baffle 9, a special-shaped gear 17 is rotatably connected to one adjacent side of each of the two supports 10, the outer sides of the special-shaped gear 17 are meshed with the outer sides of the racks 16, one end of each special-shaped gear 17, far away from the racks 16, is fixedly connected with a first connecting arm 18, one end of the bottom of each first connecting arm 18 is rotatably connected with a movable rod 20, two opposite ends of each movable rod 20 are welded with clamping blocks 21, one repulsive sides of the two supports 10 are welded with plate bodies 11, two opposite ends of each plate body 11 are rotatably connected with second connecting arms 19, and one end of each second connecting arm 19, far away from the plate bodies 11, is rotatably connected with the opposite ends of the movable rods 20; the threaded rod 13 is rotated clockwise through the lug 34, the threaded rod 13 drives the rack 16 to move upwards through the connecting block 14, the special-shaped gear 17 starts to rotate upwards under the action of the rack 16, the first connecting arm 18 starts to drive the movable rod 20 to rotate under the action of the special-shaped gear 17, and the movable rod 20 drives the clamping block 21 to clamp the ceramic by objects in silver equipment under the action of the first connecting arm 18 and the second connecting arm 19.
In this embodiment, specific: the outer side of the compression-resistant layer 23 is fixedly connected with a spring 24, and an insert 25 is welded at one end of the spring 24 away from the compression-resistant layer 23; the insert 25 can be inserted into the recess 28 under the action of the spring 24, limiting the second tubular body 29.
In this embodiment, specific: the outer side wall of the first pipe body 3 is fixedly connected with a first magnetic block 26, a groove body 27 is formed in the first pipe body 3, the inner side wall of the groove body 27 is connected with a second pipe body 29 in a sliding mode, and a groove 28 is formed in one side of the outer wall of the second pipe body 29; the second tube 29 and the first tube 3 form an integral protective structure, and the second tube 29 slides in the groove 27, so that the volume of the protective structure can be adjusted.
In this embodiment, specific: one end of the second pipe body 29 is hinged with a movable door 30, one side of the movable door 30 is welded with a handle 31, the other side of the movable door 30 is fixedly connected with a second magnetic block 32, the outer side of the second magnetic block 32 is fixedly connected with a third magnetic block 33 in an adsorption mode, and the outer side of the third magnetic block 33 is fixedly connected with the inner part of the second pipe body 29; the handle 31 facilitates the opening or closing of the movable door 30; after the second magnetic block 32 and the third magnetic block 33 are adsorbed, the movable door 30 can be kept in a stable closed state.
In this embodiment, specific: a through groove 36 is formed in the connecting plate 1, a power input end of the sensor 2 is electrically connected with a wire 35, and one end of the wire 35 penetrates through the inside of the through groove 36 and extends to the outside of the connecting plate 1; the lead 35 is connected with external commercial power and can supply power to the sensor 2, so that the sensor 2 can normally operate.
In this embodiment, specific: one end of the threaded rod 13 far away from the second bearing 15 penetrates through the inside of the thread groove 12 and is fixedly connected with a lug 34; the lugs 34 enable the threaded rod 13 to be rotated more conveniently.
In addition, the invention also provides a method for producing the ceramic silver-coated NTC temperature sensor, which comprises the following steps:
step one, preparing raw materials, namely mixing tetrabutyl titanate and alcohol in a solution by using a proportioning container, wherein the proportioning ratio is 2:1, a step of; regulating the indoor temperature to 25 ℃, and stirring the mixed solution for 1 hour by using a stirring container to obtain a clear solution;
step two, firing the sol, placing the prepared clear solution in a heating container for heating, regulating the temperature of the heating container to 120 ℃, injecting zirconium nitrate and calcium nitrate into the heating container in the process of heating the clear solution, and finally preparing the sol after heating for 3 hours;
step three, calcining to prepare powder, and placing the sol into a high-temperature coking furnace with the temperature of 420 ℃ for coking for 3 hours; after coking treatment, preparing black foam; placing the black foam into a high-temperature calciner for calcination for 2 hours to finally prepare ceramic nano powder;
and fourthly, carrying out cost processing, granulating and stamping on the ceramic nano powder by using injection molding equipment, mixing silver powder and the ceramic nano powder to prepare a ceramic green body, and then placing the ceramic green body into a high-temperature furnace for firing to finally finish the silver coating process of the ceramic.
In this embodiment, specific: in the fourth step, the heating temperature of the ceramic green body by the high-temperature furnace is 850 ℃, and the heating time is 3 hours.
The model of the sensor 2 is: TC-C.
When the sensor is used, the insulation layer 22 made of rubber is arranged on the outer side of the sensor 2, and the compression resistant layer 23 made of polyethylene is arranged on the outer side of the insulation layer 22, so that the problem of integration of NTC on ceramics is solved, and the traditional structural arrangement is overturned; thereby enhancing the compression resistance and the insulativity of the NTC temperature sensor and improving the reaction speed of the NTC temperature sensor; according to the invention, the screw groove 12 is formed in the baffle 9, and the threaded rod 13 is arranged in the screw groove 12, so that the threaded rod 13 can drive the connecting block 14 to move when moving; through the arrangement of the special-shaped gear 17 and the rack 16, when the rack 16 moves under the action of the connecting block 14, the special-shaped gear 17 can be driven to rotate, so that the special-shaped gear 17 can drive the clamping block 21 to move through the first connecting arm 18 and the movable rod 20; through the arrangement, the NTC temperature sensor can perform fixed induction at different positions on the equipment.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Ceramic is by silver technique NTC temperature sensor, including connecting plate (1), its characterized in that: one side fixedly connected with first body (3) of connecting plate (1), one side fixedly connected with sensor (2) of inside wall and being located connecting plate (1) of first body (3), the outside of sensor (2) is equipped with insulating layer (22), the outside of insulating layer (22) is equipped with compressive layer (23), the lateral wall welding of first body (3) has fixed plate (4), the inside fixedly connected with first bearing (5) of fixed plate (4), the inner circle fixedly connected with pivot (6) of first bearing (5), the bottom one end welding of pivot (6) has backup pad (7), the bottom welding of backup pad (7) has dead lever (8) that are two in quantity, and the bottom welding of dead lever (8) has baffle (9), threaded groove (12) are seted up to the inside of baffle (9), inside wall threaded connection of threaded groove (12) has (13), the bottom one end of threaded rod (13) runs through in threaded groove (12) and is fixedly connected with second bearing (15) and second bearing (14) bottom one end welding connection piece (14), the outside welding of baffle (9) has support (10) that quantity is two, two the adjacent one side of support (10) is all rotated and is connected with special-shaped gear (17), the outside of special-shaped gear (17) is connected with the outside meshing of rack (16), the one end fixedly connected with first linking arm (18) of rack (16) are kept away from to special-shaped gear (17), the bottom one end rotation of first linking arm (18) is connected with movable rod (20), the welding of the opposite one end of movable rod (20) has clamp splice (21), two the one side that support (10) repulse has plate body (11) all welded, one side rotation of plate body (11) is connected with second linking arm (19), the one end that plate body (11) was kept away from to second linking arm (19) is rotated with the opposite one end of movable rod (20) and is connected.
2. The ceramic silver-coated NTC temperature sensor of claim 1 characterized in that: the outside fixedly connected with spring (24) of compressive layer (23), the one end that spring (24) kept away from compressive layer (23) welds has insert (25).
3. The ceramic silver-coated NTC temperature sensor of claim 1 characterized in that: the novel magnetic tube comprises a first tube body (3), wherein a first magnetic block (26) is fixedly connected to the outer side wall of the first tube body (3), a groove body (27) is formed in the first tube body (3), a second tube body (29) is slidably connected to the inner side wall of the groove body (27), and a groove (28) is formed in one side of the outer wall of the second tube body (29).
4. A ceramic silver-coated NTC temperature sensor according to claim 3, characterized in that: one end of the second pipe body (29) is hinged with a movable door (30), one side of the movable door (30) is welded with a handle (31), the other side of the movable door (30) is fixedly connected with a second magnetic block (32), the outer side of the second magnetic block (32) is adsorbed and connected with a third magnetic block (33), and the outer side of the third magnetic block (33) is fixedly connected with the inner part of the second pipe body (29).
5. The ceramic silver-coated NTC temperature sensor of claim 1 characterized in that: the inside of connecting plate (1) has seted up logical groove (36), the power input end electric connection of sensor (2) has wire (35), the one end of wire (35) runs through in the inside of logical groove (36) and extends to the outside of connecting plate (1).
6. The ceramic silver-coated NTC temperature sensor of claim 1 characterized in that: one end of the threaded rod (13) far away from the second bearing (15) penetrates through the threaded groove (12) and is fixedly connected with a lug (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011417492.6A CN112539851B (en) | 2020-12-07 | 2020-12-07 | Ceramic silver-coated NTC temperature sensor and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011417492.6A CN112539851B (en) | 2020-12-07 | 2020-12-07 | Ceramic silver-coated NTC temperature sensor and production method thereof |
Publications (2)
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| CN104359583B (en) * | 2014-08-21 | 2018-05-25 | 深圳市敏杰电子科技有限公司 | Thermal radiation resistant NTC temperature sensors |
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