CN204988520U - Waterproof type NTC temperature transducer - Google Patents
Waterproof type NTC temperature transducer Download PDFInfo
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- CN204988520U CN204988520U CN201520576769.8U CN201520576769U CN204988520U CN 204988520 U CN204988520 U CN 204988520U CN 201520576769 U CN201520576769 U CN 201520576769U CN 204988520 U CN204988520 U CN 204988520U
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- gum cover
- water proof
- temperature probe
- metalwork
- test bar
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Abstract
The utility model discloses a waterproof type NTC temperature transducer, including the gum cover, NTC thermistor and with the object contact's that awaits measuring reference test bar, a reference test bar pot head is in the gum cover, the other end stretches out the gum cover, the reference test bar is equipped with the chamber that holds that holds NTC thermistor, NTC thermistor lies in the roof that holds the chamber, and seals up in holding the intracavity through the epoxy who is equipped with, NTC thermistor passes through the wire and is connected with the external control board. Its advantage is can accurate measure the temperature, can play waterproof effect again.
Description
Technical field
The utility model relates to temperature sensor, especially a kind of water proof type NTC temperature probe.
Background technology
NTC temperature sensor is a kind of sensor utilizing the resistance variation with temperature principle of conductor or semiconductor to carry out thermometric.For improving NTC temperature sensor and the plane object under test temperature measurement accuracy with pyrotoxin, the shelling machine of NTC temperature sensor is become a plane, and wherein whether thermistor is close to the shell of NTC temperature sensor is the key factor affecting NTC temperature sensor reaction velocity speed.When thermometric plane has water, water can flow into wire along the shell of sensor, then ramp metering plate, thus causes control panel to damage, and serious also can cause electric shock.Existing NTC temperature sensor all can not prevent the intrusion of thermometric planar water, and present NTC temperature sensor is the thermometric plane covering temperature sensor with soft rubber cushion.Although the effect of waterproof has had, the reaction velocity of temperature sensor has greatly reduced, and the precision of thermometric is also just inaccurate.
Utility model content
The purpose of this utility model solves the deficiencies in the prior art, provides a kind of water proof type NTC temperature probe.
A kind of technical scheme of the present utility model:
A kind of water proof type NTC temperature probe, comprise gum cover, NTC thermistor and the reference test bar contacted with object under test, reference test bar one end is placed in gum cover, the other end stretches out gum cover, and reference test bar is provided with the container cavity holding NTC thermistor, and NTC thermistor is positioned at the roof of container cavity, and by the epoxy sealing that is provided with in container cavity, NTC thermistor is connected with external control plate by wire.
Preferred version is that reference test bar comprises metalwork and is placed on the insulating part outside metalwork, and metalwork is provided with the container cavity holding NTC thermistor, and the outside surface of insulating part is circumferentially provided with draw-in groove, and gum cover is provided with the buckle corresponding with draw-in groove.
A kind of preferred version is reference test bar to be independent metalwork or to use insulating part separately, the container cavity holding NTC thermistor is provided with in independent metalwork or independent insulating part, described independent metalwork or be provided with draw-in groove by insulating part surrounding separately, described gum cover is provided with the buckle corresponding with draw-in groove.
A kind of preferred version is also provided with insulation spacer between NTC thermistor and container cavity roof, and its material is mica sheet, diaphragm or glue gasket.
A bowl-type for preferred version to be gum cover be back-off, its top is with buckle connecting test bar, and described gum cover plays spring action, and ensure that reference test bar and band are surveyed bottom object and contact well, the material of gum cover is silica gel or rubber; Its thickness is greater than 0.2mm and is less than 4mm.
A kind of preferred version is that metalwork is made up of stainless steel, copper, iron, aluminium or alloy material.
A kind of preferred version is that insulating part is made up of plastic cement, pottery, bakelite, insulcrete or glass material.
A kind of preferred version is NTC thermistor is single-ended glass seal type, nude film type or diode type thermistor.
A kind of preferred version is that the wall thickness of metalwork is greater than 0.2mm and is less than 4mm; The diameter of insulating part is greater than 3mm and is less than 40mm.
Preferred version is that water proof type NTC temperature probe also comprises the support set be placed on outside gum cover, and be provided with the locating slot to gum cover location in support set, gum cover is positioned at locating slot and is fixed by the screw be provided with.
Comprehensive technique scheme is known, the utility model has following beneficial effect: NTC thermistor is close to the roof of container cavity, fix with epoxy resin again and seal, guaranteeing that metalwork can, by heat conduction to NTC thermistor, make NTC thermistor can react the temperature of object under test fast; Because the outside surface of insulating part is circumferentially provided with draw-in groove, gum cover is provided with the buckle corresponding with draw-in groove, after buckle buckles into draw-in groove, prevents extraneous water from entering in container cavity; Water proof type NTC temperature probe also comprises the support set be placed on outside gum cover, the locating slot to gum cover location is provided with in support set, gum cover is positioned at locating slot and is fixed by the screw be provided with, and therefore reference test bar plane is a little more than the plane of support set, and therefore the water on support set surface is isolated; When thermometric, object under test is pressed on the reference test bar of water proof type NTC temperature probe, because gum cover exists elasticity, reference test bar plane is well contacted with the plane of object under test; Thus the temperature of object under test is tested out rapidly and accurately.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model first embodiment.
Fig. 2 is the schematic diagram of the utility model second embodiment.
Fig. 3 is the schematic diagram of the utility model the 3rd embodiment.
Fig. 4 is the schematic diagram of the utility model the 4th embodiment.
Fig. 5 is the schematic diagram of the utility model the 5th embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below in conjunction with accompanying drawing, the utility model is described further.
First embodiment, a kind of water proof type NTC temperature probe 1 as shown in Figure 1, comprise gum cover 20, NTC thermistor 301 and the reference test bar 10 contacted with object under test, reference test bar 10 one end is placed in gum cover 20, and the other end stretches out gum cover 20, reference test bar 10 is provided with the container cavity 101 holding NTC thermistor, NTC thermistor 301 is positioned at the roof of container cavity 101, and by the epoxy sealing that is provided with in container cavity 101, NTC thermistor 301 is connected with external control plate by wire 302.
The outside surface of reference test bar 10 is circumferentially provided with draw-in groove 102, and gum cover 20 is provided with the buckle corresponding with draw-in groove 102.The xsect of draw-in groove 102 is " L " shape, and the xsect of buckle is " L " shape.
Water proof type NTC temperature probe 1 also comprises the support set 40 be placed on outside gum cover 20, is provided with the locating slot 401 of locating gum cover 20 in support set 40, and gum cover 20 is positioned at locating slot 401 and is fixed by the screw 50 be provided with.When object under test is pressed in the plane of support set 40, because gum cover 20 exists elastic force, reference test bar 10 bottom being affixed on object under test tightly, thus measure the temperature of object under test.Gum cover 20 bowl-type in back-off, its top with buckle connecting test bar 10,20 spring actions of described gum cover, ensure that reference test bar 10 and band are surveyed bottom object and contact well, the material of gum cover 20 is silica gel or rubber; Its thickness is greater than 0.2mm and is less than 4mm.
Wherein reference test bar 10 is holed by a block of metal part or insulating part to be formed, if when the plane of support set 40 has water, gum cover 20 supports reference test bar 10 makes it higher than the plane of support set 40, the bottom screw 50 of gum cover 20 is fixed in support set 40, therefore, water can only flow out by the conduction pipe that is reserved in support set 40 plane.
In Fig. 1, reference test bar 10 can form with metalwork, and also can form with insulating part, its diameter is less than 40mm and 3mm; Gum cover 20 is made up of silica gel or rubber, and its thickness is greater than 0.2mm and 4mm.
Second embodiment, as shown in Figure 2, the difference of the present embodiment and the first embodiment is: the xsect of reference test bar is " T " font, the semicircle of the xsect of draw-in groove 102, the semisphere of buckle 201.
3rd embodiment, as Fig. 3, the present embodiment and the first embodiment are unlike insulating part 103 that reference test bar 10 comprises metalwork 104 and is placed on outside metalwork 104, metalwork 104 is provided with the container cavity 101 holding NTC thermistor 301, the outside surface of insulating part 103 is circumferentially provided with draw-in groove 102, and gum cover 20 is provided with the buckle corresponding with draw-in groove 102.The xsect of draw-in groove 102 is semicircle, and buckle is semisphere.Insulation spacer 50 is also provided with between NTC thermistor 301 and container cavity 101 roof.Insulation spacer 50 is mica sheet, diaphragm or glue gasket.Metalwork 104 is made up of stainless steel, copper, iron, aluminium or alloy material.Insulating part 103 is made up of plastic cement, pottery, bakelite, insulcrete or glass material.NTC thermistor 301 is single-ended glass seal type, nude film type or diode type thermistor.The wall thickness of metalwork 104 is greater than 0.2mm and is less than 4mm; The diameter of insulating part 103 is greater than 3mm and is less than 40mm.
4th embodiment, as shown in Figure 4, the difference of the present embodiment and the 3rd embodiment is: the insulating part 103 that reference test bar 10 comprises metalwork 104 and is placed on outside metalwork 104.One end of metalwork 104 is placed in insulating part 103, and the other end is placed in gum cover 20, therefore makes this example play not only waterproof but also heat insulation.
5th embodiment, as shown in Figure 5, the difference of the present embodiment and the 3rd embodiment is: metalwork 104 is in I-shaped, and metalwork 104 is embedded in insulating part 103, and forms draw-in groove between metalwork 104 and insulating part 103.
It is more than embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. a water proof type NTC temperature probe, it is characterized in that, comprise gum cover, NTC thermistor and the reference test bar contacted with object under test, described reference test bar one end is placed in gum cover, and the other end stretches out gum cover, described reference test bar is provided with the container cavity holding NTC thermistor, NTC thermistor is positioned at the roof of container cavity, and by the epoxy sealing that is provided with in container cavity, NTC thermistor is connected with external control plate by wire.
2. water proof type NTC temperature probe according to claim 1, it is characterized in that, described reference test bar is combined by metalwork and the insulating part be placed on outside metalwork, described metalwork is provided with the container cavity holding NTC thermistor, the outside surface of described insulating part is circumferentially provided with draw-in groove, and described gum cover is provided with the buckle corresponding with draw-in groove.
3. water proof type NTC temperature probe according to claim 1, it is characterized in that, described reference test bar is for independent metalwork or use separately insulating part, the container cavity holding NTC thermistor is provided with in independent metalwork or independent insulating part, described independent metalwork or be provided with draw-in groove by insulating part surrounding separately, described gum cover is provided with the buckle corresponding with draw-in groove.
4. water proof type NTC temperature probe according to claim 1, is characterized in that, described gum cover is the bowl-type of back-off, its top is with buckle connecting test bar, described gum cover plays spring action, and ensure that reference test bar and band are surveyed bottom object and contact well, the material of described gum cover is silica gel or rubber; Its thickness is greater than 0.2mm and is less than 4mm.
5. water proof type NTC temperature probe according to claim 1, is characterized in that, be also provided with insulation spacer between described NTC thermistor and container cavity roof, and the material of described insulation spacer is mica sheet, diaphragm or glue gasket.
6. water proof type NTC temperature probe according to claim 2, it is characterized in that, described metalwork is made up of stainless steel, copper, iron, aluminium or alloy material.
7. water proof type NTC temperature probe according to claim 2, it is characterized in that, described insulating part is made up of plastic cement, pottery, bakelite, insulcrete or glass material.
8. water proof type NTC temperature probe according to claim 1, is characterized in that, described NTC thermistor is single-ended glass seal type, nude film type or diode type thermistor.
9. water proof type NTC temperature probe according to claim 2, it is characterized in that, the wall thickness of described metalwork is greater than 0.2mm and is less than 4mm; The diameter of described insulating part is greater than 3mm and is less than 40mm.
10. water proof type NTC temperature probe according to claim 1, it is characterized in that, described water proof type NTC temperature probe also comprises the support set be placed on outside gum cover, and be provided with the locating slot to gum cover location in described support set, described gum cover is positioned at locating slot and is fixed by the screw be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576769.8U CN204988520U (en) | 2015-08-04 | 2015-08-04 | Waterproof type NTC temperature transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576769.8U CN204988520U (en) | 2015-08-04 | 2015-08-04 | Waterproof type NTC temperature transducer |
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| Publication Number | Publication Date |
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| CN204988520U true CN204988520U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520576769.8U Active CN204988520U (en) | 2015-08-04 | 2015-08-04 | Waterproof type NTC temperature transducer |
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| CN (1) | CN204988520U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124083A (en) * | 2016-08-11 | 2016-11-16 | 深圳市敏杰电子科技有限公司 | Temperature sensor at the bottom of a kind of inserted waterproof pot |
| CN109781294A (en) * | 2019-02-14 | 2019-05-21 | 姜超 | A kind of high molecular PTC temperature sensor |
| CN111448445A (en) * | 2017-12-08 | 2020-07-24 | 株式会社村田制作所 | Clinical thermometer |
| CN111829684A (en) * | 2019-04-19 | 2020-10-27 | 深圳市敏杰电子科技有限公司 | Temperature measuring system of induction cooker and induction cooker |
-
2015
- 2015-08-04 CN CN201520576769.8U patent/CN204988520U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124083A (en) * | 2016-08-11 | 2016-11-16 | 深圳市敏杰电子科技有限公司 | Temperature sensor at the bottom of a kind of inserted waterproof pot |
| CN106124083B (en) * | 2016-08-11 | 2019-01-22 | 深圳市敏杰电子科技有限公司 | A kind of inserted waterproof pot bottom temperature sensor |
| CN111448445A (en) * | 2017-12-08 | 2020-07-24 | 株式会社村田制作所 | Clinical thermometer |
| CN111448445B (en) * | 2017-12-08 | 2021-09-03 | 株式会社村田制作所 | Clinical thermometer |
| CN109781294A (en) * | 2019-02-14 | 2019-05-21 | 姜超 | A kind of high molecular PTC temperature sensor |
| CN109781294B (en) * | 2019-02-14 | 2020-12-18 | 明光市龙腾科技工贸有限公司 | Polymer PTC temperature sensor |
| CN111829684A (en) * | 2019-04-19 | 2020-10-27 | 深圳市敏杰电子科技有限公司 | Temperature measuring system of induction cooker and induction cooker |
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