CN113916274A - Waterproof high temperature resistant sensor - Google Patents
Waterproof high temperature resistant sensor Download PDFInfo
- Publication number
- CN113916274A CN113916274A CN202111198003.7A CN202111198003A CN113916274A CN 113916274 A CN113916274 A CN 113916274A CN 202111198003 A CN202111198003 A CN 202111198003A CN 113916274 A CN113916274 A CN 113916274A
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- Prior art keywords
- cover
- protective
- lead
- high temperature
- sealing
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- 230000001681 protective effect Effects 0.000 claims abstract description 109
- 238000007789 sealing Methods 0.000 claims abstract description 70
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 15
- 230000000670 limiting effect Effects 0.000 claims description 15
- 239000002654 heat shrinkable material Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 14
- 239000003292 glue Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
Abstract
The application discloses a waterproof high-temperature-resistant sensor, which comprises a lead, a resistance element and a protection tube, wherein the resistance element is connected with the lead, the surface of the protection tube is provided with a pressing groove, the resistance element and the lead are sealed in the protection tube by the pressing groove, the waterproof high-temperature-resistant sensor also comprises a protection cover, and the resistance element and the lead are covered in the protection cover; the protective cover is arranged at the opening of the protective pipe, and is provided with a joint through hole through which the protective cover can penetrate; the protective tube is also provided with a sealing cover which is used for sealing and wrapping the tube opening of the protective tube. The beneficial effect of this application: the waterproof high-temperature-resistant sensor is characterized in that a protective outer cover is added; a closure device; the pressure tank is connected with the layer and other devices, the resistor element is integrally sealed and arranged in the protective tube, the resistor element is protected in multiple layers, damage to the resistor element and a wiring part of a core device of the sensor in a humid and high-temperature environment is reduced, and the service life of the sensor is prolonged.
Description
Technical Field
The technical field of the sensor especially relates to a waterproof high temperature resistant sensor.
Background
Along with the development of the electronic equipment industry, more and more sensors are applied to the sensor, and the requirement on the adaptive environment of the sensor is gradually stricter, so that higher requirements are provided for the adaptive capacity of the sensor to the environment, particularly the sensor is particularly obvious in the humid and high-temperature environments.
Disclosure of Invention
In order to improve the defect that the service life of sensor is low, this application provides a waterproof high temperature resistant sensor.
The application provides a waterproof high temperature resistant sensor adopts following technical scheme:
a waterproof high-temperature-resistant sensor comprises a lead, a resistance element and a protection tube, wherein the resistance element is connected with the lead, the surface of the protection tube is provided with a pressing groove, the pressing groove seals the resistance element and the lead in the protection tube, and the waterproof high-temperature-resistant sensor also comprises a protective cover which covers the resistance element and the lead in the protection tube; the protective cover is arranged at the opening of the protective tube, and is provided with a joint through hole through which the protective cover can penetrate; the protective tube is also provided with a sealing cover which is used for sealing and wrapping the tube opening of the protective tube.
Through adopting above-mentioned technical scheme, add the safety cover, the closing device, the sealed cowling, the sensor at first carries out first layer safeguard measure to resistive element and lead wire through the safety cover, pass the closing device entering protective tube through connecting the through-hole with the safety cover simultaneously, the closing device then forms the second floor safeguard measure in airtight space, carry out outmost sealed by the sealed cowling at last, can form the isolated measure of multilayer from this, thereby fully isolate the outside adverse circumstances that the sensor suffered in the use and change the damage that causes, improve the life of sensor.
Further: the protective cover comprises a lead cover, a protective inner cover and a protective outer cover, and the lead cover covers the connecting point of the resistance element and the lead; the lead wire cover and the resistance element are covered by the protective inner cover; the lead cover and the protective inner cover are covered by the protective outer cover.
By adopting the technical scheme, the protective cover is divided into a plurality of layers, the lead cover on the innermost layer protects the connecting point of the resistance element and the lead, the protective inner cover covers the lead cover and the resistance element to form further protection, the lead cover and the protective inner cover are integrally covered by the protective outer cover again to form outermost protection, and the protective cover is integrally formed by three layers of protection to tightly protect the lead and the resistance element.
Further: the sealing device is positioned in the protection tube, and the outer diameter of the sealing device is matched with the inner diameter of the protection tube.
By adopting the technical scheme, the sealing device is arranged inside the protective tube, and the protective device is integrally inserted into the protective tube, so that a protective cavity capable of accommodating the resistance element and the protective cover is formed inside the protective tube.
Further: the sealing device is located at the pressure groove on the surface of the protection pipe, and the outer surface of the sealing device is provided with a pressure groove bearing layer.
Through adopting above-mentioned technical scheme, make the indent direct action accept the layer in the indent when carrying out the punching press indent operation, the protection lead wire equipotential prevents to be extruded and damages, also prevents in the use that lead wire equipotential friction indent department from causing lead wire equipotential to damage.
Further: the sealing device comprises a sealing clamping piece and a clamping joint, the sealing clamping piece is provided with a joint accommodating cavity, the clamping joint is matched with the joint accommodating cavity, the joint through hole penetrates through the sealing clamping piece and the joint accommodating cavity, and the edge of the joint accommodating cavity is provided with a limiting cavity; and the clamping joint is provided with a limiting block matched with the limiting cavity.
By adopting the technical scheme, the joint accommodating cavity on the closed clamping piece enables the clamping joint to be directly inserted and connected, the limiting cavity and the matched limiting block can further increase the limiting effect, the closing device is divided into the closed clamping piece and the clamping joint, and the closing device and the electrical appliance element can be conveniently installed when the sensor is integrally produced.
Further: a plurality of contact protrusions are arranged on the surface of the sealing device close to the protective cover.
By adopting the technical scheme, if the sealing operation is carried out in the protective tube, the contact area between the sealing clamping piece and the sealing glue can be increased by the contact bulge, so that the sealing effect is obvious, and the sealing device is prevented from falling off due to cracking of the sealing glue particularly in the long-term use process.
Further: the sealing device is provided with a connecting piece on the surface close to the protective cover, the end, away from the sealing fastener, of the connecting piece is provided with a connecting base matched with the pipe diameter of the protective pipe, and the connecting base is provided with a protective cover accommodating cavity.
Through adopting above-mentioned technical scheme, this kind of mode is connected and to be replaced the fixed effect of gluing, seals the base on the fastener through the connecting piece, makes it become a whole and can directly insert it in the protection tube to block the pipe wall through assorted connection base and make whole firm, the safety cover holds the chamber simultaneously and can stretch into the inside resistance element of safety cover cladding and play firm effect to resistance element.
Further: the surface of the sealing device close to the protective cover is provided with an anti-skid connecting plate, the outer side of the end part of the anti-skid connecting plate is provided with an anti-skid part, and the anti-skid connecting plate has elasticity.
Through adopting above-mentioned technical scheme, this kind of mode is connected and also can replace the fixed effect of gluing, through the elasticity characteristic that has elasticity antiskid piece connecting plate, when carrying out closing device's grafting, will have elasticity antiskid piece and end department antiskid piece and directly stretch into in the protective tube, through the elastic restoring force of the elasticity antiskid piece connecting plate of self and the antiskid piece increase contact's frictional force with the pipe wall department of meeting frictional force, make closing device fix.
Further: the protective inner cover, the protective outer cover and the sealing cover are made of heat-shrinkable materials.
Through adopting above-mentioned technical scheme, can carry out pyrocondensation operation after protection inner cover, protection dustcoat connect, make the edge of protection inner cover, protection dustcoat shrink also can make wholly shrink, better airtight, and outmost sealed cowling connects again and carries out the pyrocondensation and can further seal the confined protection mouth of pipe of sealing device.
To sum up, the beneficial effect of this application: according to the waterproof high-temperature-resistant sensor, the protective outer cover and the sealing device are added; the pressure tank is connected with the layer and other devices, the resistor element is integrally sealed and arranged in the protective tube, the resistor element is protected in multiple layers, damage to the resistor element and a wiring part of a core device of the sensor in a humid and high-temperature environment is reduced, and the service life of the sensor is prolonged.
Drawings
FIG. 1 is a schematic perspective view of a finished product of a waterproof and high temperature-resistant sensor;
FIG. 2 is an exploded view of a waterproof, refractory sensor according to one embodiment;
FIG. 3 is a schematic perspective view of a closing clip and a snap joint of the closing device of the waterproof high temperature sensor according to the first embodiment;
FIG. 4 is a schematic perspective view of a contact protrusion on a closure clip of the closure device of the waterproof high temperature sensor according to the first embodiment;
fig. 5 is a schematic perspective view of a sealing device of a waterproof high-temperature-resistant sensor according to a second embodiment of the present invention;
fig. 6 is a schematic perspective view of a sealing device of a waterproof high-temperature-resistant sensor according to a third embodiment.
In the figure: 1. a lead wire; 2. a resistance element; 3. a protective cover; 31. a lead cover; 32. a protective inner cover; 33. a protective outer cover; 4. a closure device; 41. closing the clamping piece; 412 pressing the groove receiving layer; 42. clamping a joint; 421. a limiting block; 422. a joint through hole; 43. a joint accommodating chamber; 431. a limiting cavity; 44. a contact projection; 45. a connecting member; 46. connecting a base; 47. a protective cover accommodating cavity; 48. an anti-skid member connecting plate; 49. an anti-slip member; 5. protecting the tube; 51. pressing a groove; 6. and (6) sealing the cover.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the application easy to understand, the application is further described in the following with the specific embodiments.
Example 1
As shown in fig. 1 and fig. 2, one embodiment of a waterproof high-temperature-resistant sensor of the present application includes a lead 1, a resistor element 2, and a protection tube 5, wherein the resistor element 2 is connected to the lead 1, a pressing groove 51 is formed on a surface of the protection tube 5, the pressing groove 51 seals the resistor element 2 and the lead 1 in the protection tube 5, and further includes a protection cover 3, and the protection cover 3 covers the resistor element 2 and the lead 1; the protective cover is characterized by further comprising a sealing device 4, wherein the sealing device 4 is arranged at the pipe orifice of the protective pipe 5 and seals the pipe orifice, and a joint through hole 422 through which the protective cover 3 can penetrate is arranged on the sealing device 4; the protection tube 5 is also provided with a sealing cover 6, and the sealing cover 6 is used for sealing and wrapping the opening of the protection tube 5.
The closing device 4 is located inside the protective tube 5, and the outer diameter of the closing device 4 is matched with the inner diameter of the protective tube 5.
The sealing device 4 is positioned at the indent 51 on the surface of the protection tube 5, and the indent receiving layer 412 is arranged on the outer surface of the sealing device 4.
The protective cover 3 comprises a lead cover 31, a protective inner cover 32 and a protective outer cover 33, and the lead cover 31 covers the connection point of the resistance element 2 and the lead 1; the lead wire cover 31 and the resistance element 2 are covered by the protective inner cover 32; the lead cover 31 and the inner protective cover 32 are covered with the outer protective cover 33.
The inner protective cover 32, the outer protective cover 33 and the sealing cover 6 are of a heat-shrinkable material.
As shown in fig. 3, the closing device 4 comprises a closing clamping piece 41 and a clamping connector 42, the closing clamping piece 41 is provided with a connector accommodating cavity 43, the clamping connector 42 is matched with the connector accommodating cavity 43, a connector through hole 422 penetrates through the closing clamping piece 41 and the connector accommodating cavity 43, and the edge of the connector accommodating cavity 43 is provided with a limiting cavity 431; the snap joint 42 is provided with a limit block 421 matched with the limit cavity 431.
As shown in fig. 4, the closing means 4 is provided with a plurality of contact projections 44 on its surface close to the protective cover 3.
The principle process is as follows: the lead 1 is inserted into the lead cover 31, then the lead 1 is connected with the resistance element 2, then the lead cover 31 covers the connection point of the lead 1 and the resistance element 2, the lead cover 31 and the resistance element 2 are covered by the protective inner cover 32 to form a further protective layer, and then the protective outer cover 33 forms the outermost layer of the protective inner cover 32 and the exposed part of the lead; because the protective inner cover 32 and the protective outer cover 33 are made of heat-shrinkable materials, then the whole electronic element coated by the protective cover 3 can be subjected to heat shrinkage, so that the whole electronic element coated by the protective cover 3 is more tightly sealed; then the whole body passes through a joint through hole 422 on a clamping joint 42 in a sealing device 4, then the clamping joint 42 is inserted into a joint accommodating cavity 43 through a matched limiting block 421 and a limiting cavity 431, then a protective cover 3 extends into the protective pipe, finally the sealing device 4 is inserted into a protective pipe 5, then the clamping joint 42 can be pulled up through the plugging of the clamping joint 42 and then sealing glue is put into the joint through hole 422, then the clamping joint 42 is inserted back into the joint accommodating cavity 43, or the protective pipe 5 can be filled with the sealing glue before the sealing device 4 is installed and then the electronic element coated by the protective cover 3 is integrally inserted into the sealing glue, then the sealing device 4 is installed, the clamping joint 42 and the sealing glue contact protrusion 44 can increase the contact area after the sealing glue is solidified, so that the glue sealing effect is more obvious; then carry out stamping treatment with closing device 4 goes up the indent and accepts the corresponding protection tube 5 outside of layer 412 in protection tube 5 and form indent 51, protection tube 5 direct action is accepted the layer 412 in the indent during punching press, the protection lead wire isoelectric line prevents to be extruded and damaged, and the direct friction indent department of lead wire isoelectric line has also been prevented in the use and has caused lead wire isoelectric line to damage, then seal the orificial exposed department of protection tube 5 and glue the processing, cover the mouth of pipe of sealed protection tube 5 with outermost seal cover 6 at last or wholly seal protection tube 5, then heat mould sealing cover 6, make seal cover 6 shrink wrap up the mouth of pipe of protection tube 5 or wholly seal processing protection tube 5.
Example 2
The lead 1, the resistor 2, the protective cover 3, the protective tube 5 and the sealing cover 6 included in this embodiment are the same as those of the first embodiment and are not described herein again, and the sealing device 4 is different from the first embodiment in this embodiment.
As shown in fig. 5, the surface of the closing clamping piece 41 of the closing device 4 in this embodiment opposite to the clamping joint 42 is provided with a connecting piece 45, the end of the connecting piece 45 far away from the closing clamping piece 41 is provided with a connecting base 46 matched with the pipe diameter of the protection pipe 5, and the connecting base 46 is provided with a protective cover accommodating cavity 47.
The working principle and the process are as follows: the working principle process of the lead 1 and the protective cover 3 is the same as that of the first embodiment, which is not described in detail herein, when the closing device 4 is inserted into the protection tube 5, the connecting piece closing clamp 41 is connected with a connecting base 46 matched with the pipe diameter of the protection tube 5 through a connecting piece 45, so that the connecting piece closing clamp can be directly inserted into the protection tube 5 as a whole, therefore, the pipe wall is clamped through the matched connecting base 46 to enable the whole to be stable, meanwhile, the protective cover accommodating cavity 47 can enable the resistor element coated by the protective cover to integrally extend into the protective cover accommodating cavity, the protective cover accommodating cavity 47 can play a role in stabilizing the resistor element under the condition that sealant is not injected into the protective pipe 5, finally, the outer portion of the protective pipe 5 corresponding to the pressure groove bearing layer 412 on the closing device 4 in the protective pipe 5 is subjected to stamping processing to form the pressure groove 51, and follow-up operation is the same as that of the embodiment.
Example 3
The lead 1, the resistor 2, the protective cover 3, the protective tube 5 and the sealing cover 6 included in this embodiment are the same as those of the other two embodiments and are not repeated herein, and the sealing device 4 is different from the other two embodiments in this embodiment.
As shown in fig. 6, the surface of the closing jaw 41 opposite to the engaging joint 42 is provided with a slip-preventing member connecting plate 48, the outer side of the end of the slip-preventing member connecting plate 48 is provided with a slip-preventing member 49, and the slip-preventing member connecting plate 48 has elasticity.
The working principle and the process are as follows: the working principle and process of the lead 1 and the protective cover 3 are the same as those of the other two embodiments, which are not described herein, and when the sealing device 4 is inserted into the protective tube 5, the elastic characteristic of the elastic anti-slip member connecting plate 48 is used, when the sealing device 4 is inserted into the protective tube 5, the elastic anti-slip member 48 and the end outer anti-slip member 49 are directly inserted into the protective tube, the tube wall presses the anti-slip member 49 and the elastic anti-slip member 48 connected with the same, the elastic restoring force of the anti-slip member connecting plate 48 and the larger contact area of the anti-slip member 49 at the tube wall joint are used to increase the frictional force of contact, so that the sealing device 4 is fixed in the protective tube 5, at this time, the protective cover accommodating cavity 47 can stabilize the resistance element without injecting sealant into the protective tube 5, and finally, the corresponding outer part of the protective tube 5 of the indent receiving layer 412 on the sealing device 4 in the protective tube 5 is punched to form the indent 51, the subsequent operations are the same as in the other two embodiments.
While there have been shown and described what are at present considered the fundamental principles and essential features of the application and its advantages, it will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A waterproof high temperature resistant sensor, includes lead wire (1), resistive element (2) and protection tube (5), resistive element (2) is connected with lead wire (1), protection tube (5) surface has indent (51), indent (51) seals resistive element (2) and lead wire (1) in protection tube (5), its characterized in that: the resistor is characterized by further comprising a protective cover (3), wherein the resistor element (2) and the lead (1) are covered inside the protective cover (3); the protective device is characterized by further comprising a sealing device (4), wherein the sealing device (4) is arranged at the pipe opening of the protective pipe (5) and seals the pipe opening, and a joint through hole (422) through which the protective cover (3) can penetrate is formed in the sealing device (4); still be equipped with a sealed cowling (6) on protection tube (5), sealed parcel protection tube (5) mouth of pipe is covered in sealed cover (6).
2. The waterproof high temperature sensor of claim 1, wherein: the protective cover (3) comprises a lead cover (31), a protective inner cover (32) and a protective outer cover (33), and the lead cover (31) covers the connection point of the resistance element (2) and the lead (1); the lead wire cover (31) and the resistance element (2) are covered by the protective inner cover (32); the lead wire cover (31) and the protective inner cover (32) are covered by the protective outer cover (33).
3. The waterproof high temperature sensor of claim 1, wherein: the sealing device (4) is located in the protection pipe (5), and the outer diameter of the sealing device (4) is matched with the inner diameter of the protection pipe (5).
4. The waterproof high temperature sensor of claim 3, wherein: the sealing device (4) is located at a pressure groove (51) on the surface of the protection pipe (5), and a pressure groove bearing layer (412) is arranged on the outer surface of the sealing device (4).
5. The waterproof high temperature sensor of claim 1, wherein: the sealing device (4) comprises a sealing clamping piece (41) and a clamping joint (42), the sealing clamping piece (41) is provided with a joint accommodating cavity (43), the clamping joint (42) is matched with the joint accommodating cavity (43), the joint through hole (422) penetrates through the sealing clamping piece (41) and the joint accommodating cavity (43), and the edge of the joint accommodating cavity (43) is provided with a limiting cavity (431); the clamping joint (42) is provided with a limiting block (421) matched with the limiting cavity (431).
6. The waterproof high temperature sensor of claim 1, wherein: a plurality of contact bulges (44) are arranged on the surface of the closing device (4) close to the protective cover (3).
7. The waterproof high temperature sensor of claim 1, wherein: close surface with safety cover (3) is equipped with connecting piece (45) on closing device (4), connecting piece (45) are kept away from closed fastener (41) end and are equipped with and connect base (46) with protection tube (5) pipe diameter assorted, it holds chamber (47) to be equipped with the safety cover on connecting base (46).
8. The waterproof high temperature sensor of claim 1, wherein: the surface close to the protective cover (3) on the sealing device (4) is provided with an anti-skid piece connecting plate (48), the outer side of the end part of the anti-skid piece connecting plate (48) is provided with an anti-skid piece (49), and the anti-skid piece connecting plate (48) has elasticity.
9. The waterproof high temperature sensor of claim 2, wherein: the inner protective cover (32), the outer protective cover (33) and the sealing cover (6) are made of heat shrinkable materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198003.7A CN113916274A (en) | 2021-10-14 | 2021-10-14 | Waterproof high temperature resistant sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198003.7A CN113916274A (en) | 2021-10-14 | 2021-10-14 | Waterproof high temperature resistant sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113916274A true CN113916274A (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111198003.7A Pending CN113916274A (en) | 2021-10-14 | 2021-10-14 | Waterproof high temperature resistant sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113916274A (en) |
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