CN215677349U - Temperature sensor for air switch - Google Patents
Temperature sensor for air switch Download PDFInfo
- Publication number
- CN215677349U CN215677349U CN202120013320.6U CN202120013320U CN215677349U CN 215677349 U CN215677349 U CN 215677349U CN 202120013320 U CN202120013320 U CN 202120013320U CN 215677349 U CN215677349 U CN 215677349U
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- thermistor
- air switch
- sensor
- temperature sensor
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000005538 encapsulation Methods 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000741 silica gel Substances 0.000 claims description 10
- 229910002027 silica gel Inorganic materials 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 11
- 230000010354 integration Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- 239000003822 epoxy resin Substances 0.000 description 8
- 229920000647 polyepoxide Polymers 0.000 description 8
- 239000004519 grease Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 241000309551 Arthraxon hispidus Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to the technical field of manufacturing of sensitive components and parts, and discloses a temperature sensor for an air switch, which comprises a sensor shell, wherein the bottom of the sensor shell is fixedly connected with a clamping joint, the front of the sensor shell is fixedly welded with a packaging medium, a thermistor is fixedly arranged in the packaging medium, the bottom of the thermistor is fixedly welded with a binding post, the binding post extends to the outer side of the packaging medium and is internally sheathed with a lead wire connected with the thermistor, and the front of the sensor shell is positioned above the packaging medium and is provided with a clamping groove. This temperature sensor for air switch, the installation is more convenient, terminal and sensor integration, and the cost is lower, and the stamping workpiece is cheaper, and the packaging mode that the sensor was pushed down in the spot welding is simple than sticky mode, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
Description
Technical Field
The utility model relates to the technical field of manufacturing of sensitive components, in particular to a temperature sensor for an air switch.
Background
The thermistor is a semiconductor ceramic element sensitive to temperature, has the characteristics of quick response, high precision, good stability and low cost, is widely applied to various occasions related to temperature, particularly is directly hooked with the temperature in the fire fighting industry, and 80 percent of reasons for electrical fire are that: overload conflagration and contact resistance too big conflagration have accelerated the ageing rotten of wire insulating layer when the wire overload, and when serious overload, the temperature of wire can constantly rise, can arouse the insulating emergence burning of wire even to can ignite the combustible substance near the wire, thereby cause the conflagration.
In case of fire disaster with excessive contact resistance, there are joints at the connection places of the wires and the wires, the wires and the switches, fuses, instruments, electrical devices, etc., the resistance formed on the contact surface of the joints is called contact resistance, if there are impurities in the joints, the connection is not firm or the contact of the joints is poor due to other reasons, so that the local resistance of the contact part is excessive, when current passes through the joints, a large amount of heat is generated at the contact part to form high temperature, which is the phenomenon that the contact resistance is excessive, and if the contact resistance is excessive at a certain place on an electrical circuit through which a large current passes, an extremely large amount of heat is generated in the local range with the excessive contact resistance, so that the metal is discolored or even melted, the insulation layer of the wires is burned, and combustible substances nearby are burned or dust, fibers, etc. deposited on the wires are guided to cause fire disaster, and the existing temperature sensor for the air switch, the thermistor or the sensor after packaging is simply glued on the binding post by glue, and the mode has obvious defects: after the binding post is impacted back and forth for several times, the glue is easy to fall off, so that the temperature measurement of the sensor is delayed, even fails and is reported by mistake.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the temperature sensor for the air switch, which has the advantages of accurate temperature measurement, convenient installation and suitability for various air switch sizes, and solves the problems in the background art.
The utility model provides the following technical scheme: the utility model provides a temperature sensor for air switch, includes sensor housing, sensor housing's bottom fixedly connected with joint, sensor housing's positive fixed welding has the encapsulation medium, the inside fixed mounting of encapsulation medium has thermistor, thermistor's bottom fixed welding is connected with the terminal, the terminal extends to the outside of encapsulation medium and inside cover is equipped with the wire that is connected with thermistor, sensor housing's the front top that is located the encapsulation medium has seted up the joint groove.
Preferably, the thermistor may be one of an NTC thermistor, a PTC thermistor, a KTY-series thermistor, an RTD, a platinum resistor, and a thermocouple.
Preferably, the packaging medium is in the shape of a hollow cube, and a rectangular opening is formed in the bottom of the front face of the hollow cube.
Preferably, the packaging medium is a hollow cuboid, and the front surface of the hollow cuboid is provided with a circular through hole.
Preferably, the packaging medium is in the shape of a hollow U-shaped body, and a longitudinal opening is formed in the bottom of the hollow U-shaped body.
Preferably, the packaging medium is in the shape of a hollow cylinder, and a cylindrical opening is formed in the front face of the hollow cylinder.
Preferably, the conducting wire can be Dumet wire, copper wire, PTFE, PVC, silica gel wire, PFA, PFE, PE and other electronic wires.
Compared with the prior art, the utility model has the following beneficial effects:
this temperature sensor for air switch, the installation is more convenient, terminal and sensor integration, and the cost is lower, and the stamping workpiece is cheaper, and the packaging mode that the sensor was pushed down in the spot welding is simple than sticky mode, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an internal view of the structure of the present invention;
FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fourth embodiment of the present invention.
In the figure: 1. a sensor housing; 2. a clamping groove; 3. a binding post; 4. a wire; 5. packaging the medium; 6. A thermistor; 7. and (4) clamping a connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Detailed description of the preferred embodiment 1
Referring to fig. 1-2, a temperature sensor for an air switch includes a sensor housing 1, the sensor housing 1 is a metal car or stamping part, which may be copper, nickel-plated copper, zinc-plated copper, etc., a fastening joint 7 is fixedly connected to the bottom of the sensor housing 1, a packaging medium 5 is fixedly welded to the front of the sensor housing 1, the packaging medium 5 is in the shape of a hollow cube 51, a rectangular opening is formed at the bottom of the front of the hollow cube 51, the packaging medium 5 may be a material of heat-conducting silica gel, heat-conducting silicone grease, epoxy resin, a thermistor 6 is fixedly installed inside the packaging medium 5, the thermistor 6 may be one of an NTC thermistor, a PTC thermistor, a KTY series thermistor, an RTD, a platinum resistor, and a thermocouple, the bottom of the thermistor 6 is fixedly welded with a connection terminal 3, the terminal 3 extends to the outside of the packaging medium 5 and is internally sheathed with a lead 4 connected with the thermistor 6, wire 4 can be for dumet wire, the copper wire, PTFE, PVC, the silica gel line, PFA, PFE, electron lines such as PE, joint groove 2 has been seted up to the front that is located packaging medium 5 of sensor housing 1, joint groove 2 and joint head 7's cooperation makes this temperature sensor's installation relatively fastening, the installation is more convenient, terminal 3 and sensor integration, the cost is lower, the stamping workpiece is cheaper, the sticky mode is simple more than of the encapsulation mode that the sensor was pushed down in the spot welding, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
Specific example 2
Referring to fig. 3, a temperature sensor for an air switch includes a sensor housing 1, the sensor housing 1 is a metal vehicle or stamping part, which may be copper, nickel-plated copper, zinc-plated copper, etc., a bayonet joint 7 is fixedly connected to the bottom of the sensor housing 1, a packaging medium 5 is fixedly welded to the front of the sensor housing 1, the packaging medium 5 is in the shape of a hollow cuboid 52, a circular through hole is formed in the front of the hollow cuboid 52, the packaging medium 5 may be a material of heat-conducting silica gel, heat-conducting silicone grease, epoxy resin, a thermistor 6 is fixedly installed inside the packaging medium 5, the thermistor 6 may be one of an NTC thermistor, a PTC thermistor, a KTY series thermistor, an RTD, a platinum resistor, and a thermocouple, a binding post 3 is fixedly welded to the bottom of the thermistor 6, the binding post 3 extends to the outer side of the packaging medium 5 and a lead 4 connected to the thermistor 6 is sleeved inside, wire 4 can be for dumet wire, the copper wire, PTFE, PVC, the silica gel line, PFA, PFE, electron lines such as PE, joint groove 2 has been seted up to the front that is located packaging medium 5 of sensor housing 1, joint groove 2 and joint head 7's cooperation makes this temperature sensor's installation relatively fastening, the installation is more convenient, terminal 3 and sensor integration, the cost is lower, the stamping workpiece is cheaper, the sticky mode is simple more than of the encapsulation mode that the sensor was pushed down in the spot welding, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
Specific example 3
Referring to fig. 4, a temperature sensor for an air switch includes a sensor housing 1, the sensor housing 1 is a metal vehicle or stamping part, which may be copper, nickel-plated copper, zinc-plated copper, etc., a bayonet joint 7 is fixedly connected to the bottom of the sensor housing 1, an encapsulation medium 5 is fixedly welded to the front of the sensor housing 1, the encapsulation medium 5 is a hollow U-shaped body 53, a longitudinal opening is opened at the bottom of the hollow U-shaped body 53, the encapsulation medium 5 may be a material of heat-conducting silica gel, heat-conducting silicone grease, epoxy resin, a thermistor 6 is fixedly installed inside the encapsulation medium 5, the thermistor 6 may be an NTC thermistor, a PTC thermistor, a KTY series thermistor, one of RTD, platinum resistor, and thermocouple, a binding post 3 is fixedly welded to the bottom of the thermistor 6, the binding post 3 extends to the outer side of the encapsulation medium 5 and a lead 4 connected to the thermistor 6 is sleeved inside, wire 4 can be for dumet wire, the copper wire, PTFE, PVC, the silica gel line, PFA, PFE, electron lines such as PE, joint groove 2 has been seted up to the front that is located packaging medium 5 of sensor housing 1, joint groove 2 and joint head 7's cooperation makes this temperature sensor's installation relatively fastening, the installation is more convenient, terminal 3 and sensor integration, the cost is lower, the stamping workpiece is cheaper, the sticky mode is simple more than of the encapsulation mode that the sensor was pushed down in the spot welding, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
Specific example 4
Referring to fig. 5, a temperature sensor for an air switch includes a sensor housing 1, the sensor housing 1 is a metal vehicle or stamping part, which may be copper, nickel-plated copper, zinc-plated copper, etc., a bayonet joint 7 is fixedly connected to the bottom of the sensor housing 1, an encapsulation medium 5 is fixedly welded to the front of the sensor housing 1, the encapsulation medium 5 is in the shape of a hollow cylinder 54, a cylindrical opening is opened on the front of the hollow cylinder 54, the encapsulation medium 5 may be a material of heat-conducting silica gel, heat-conducting silicone grease, epoxy resin, a thermistor 6 is fixedly installed inside the encapsulation medium 5, the thermistor 6 may be one of an NTC thermistor, a PTC thermistor, a KTY-series thermistor, an RTD, a platinum resistor, and a thermocouple, a binding post 3 is fixedly welded to the bottom of the thermistor 6, the binding post 3 extends to the outer side of the encapsulation medium 5 and a lead 4 connected to the thermistor 6 is sleeved inside, wire 4 can be for dumet wire, the copper wire, PTFE, PVC, the silica gel line, PFA, PFE, electron lines such as PE, joint groove 2 has been seted up to the front that is located packaging medium 5 of sensor housing 1, joint groove 2 and joint head 7's cooperation makes this temperature sensor's installation relatively fastening, the installation is more convenient, terminal 3 and sensor integration, the cost is lower, the stamping workpiece is cheaper, the sticky mode is simple more than of the encapsulation mode that the sensor was pushed down in the spot welding, withstand voltage and insulating nature: the pressure resistance can reach more than 5000VAC, the air switch is suitable for various civil and industrial uses, and the air switch is convenient to install in factories and has high efficiency.
The first packaging scheme is as follows:
the single-end glass package thermistor 6, two wires 4 cover a teflon inner sleeve respectively, then overlap a PVDF or teflon pyrocondensation outer sleeve again, fix thermistor 6 glass head and inner sleeve, accomplish the first step. And (3) sticking heat-conducting silicone grease or epoxy resin on the head of the sensor finished in the first step, and placing the sensor head in the hole of the binding post 3. And placing the opening end of the pressing sheet of the binding post 3 on a spot welding die, and performing spot welding to obtain the integrated binding post 3 with the embedded temperature sensor.
And a second packaging scheme:
the enameled wire encapsulates the thermistor 6, and the head is sleeved with a common heat-shrinkable sleeve to fix and protect the thermistor 6, so that the first step is completed. And (3) adhering epoxy resin to the head of the sensor finished in the first step, and placing the sensor head in the hole of the binding post 3. And then curing the epoxy resin at high temperature, and supplementing glue to obtain the integrated wiring terminal 3 embedded with the temperature sensor.
And a third packaging scheme:
1.30-22AWG, welding a thermistor 6 chip, encapsulating epoxy resin at the head part, and fixing and protecting the thermistor 6 chip to finish the first step. After the sensor finished in the first step is solidified, the sensor is placed in a hole of the binding post 3, and then the sensor and the binding post 3 are fixed by a hot melting gun. And cooling to obtain the integrated wiring terminal 3 with the embedded temperature sensor.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A temperature sensor for an air switch comprises a sensor shell (1) and is characterized in that: the bottom fixedly connected with joint (7) of sensor housing (1), the positive fixed welding of sensor housing (1) has encapsulation medium (5), the inside fixed mounting of encapsulation medium (5) has thermistor (6), the bottom fixed welding of thermistor (6) is connected with terminal (3), terminal (3) extend to the outside of encapsulation medium (5) and inside cover are equipped with wire (4) that are connected with thermistor (6), joint groove (2) have been seted up to the front top that is located encapsulation medium (5) of sensor housing (1).
2. The temperature sensor for an air switch according to claim 1, characterized in that: the thermistor (6) is one of an NTC thermistor, a PTC thermistor, a KTY series thermistor, an RTD, a platinum resistor and a thermocouple.
3. The temperature sensor for an air switch according to claim 1, characterized in that: the packaging medium (5) is in the shape of a hollow cube (51), and a rectangular opening is formed in the bottom of the front face of the hollow cube (51).
4. The temperature sensor for an air switch according to claim 1, characterized in that: the packaging medium (5) is in the shape of a hollow cuboid (52), and a circular through hole is formed in the front face of the hollow cuboid (52).
5. The temperature sensor for an air switch according to claim 1, characterized in that: the packaging medium (5) is in a hollow U-shaped body (53), and a longitudinal opening is formed in the bottom of the hollow U-shaped body (53).
6. The temperature sensor for an air switch according to claim 1, characterized in that: the packaging medium (5) is in the shape of a hollow cylinder (54), and a cylindrical opening is formed in the front face of the hollow cylinder (54).
7. The temperature sensor for an air switch according to claim 1, characterized in that: the lead (4) is an electronic wire such as Dumet wire, copper wire, PTFE, PVC, silica gel wire, PFA, PFE, PE and the like.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020207316063 | 2020-05-07 | ||
| CN202020731606 | 2020-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215677349U true CN215677349U (en) | 2022-01-28 |
Family
ID=79950039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120013320.6U Active CN215677349U (en) | 2020-05-07 | 2021-01-05 | Temperature sensor for air switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215677349U (en) |
-
2021
- 2021-01-05 CN CN202120013320.6U patent/CN215677349U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000, Building 7, Skyworth Innovation Valley, No. 8 Tangtou No.1 Road, Tangtou Community, Shiyan Street, Bao'an District, Shenzhen, Guangdong Province, China Patentee after: Shenzhen tepusheng Technology Co.,Ltd. Country or region after: China Address before: 518000 601, 105-21 huanguan South Road, Guancheng community, Guanhu street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen tepusheng Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |