CN206627229U - High-temperature insulation type NTC temperature sensors easy to install - Google Patents

Abstract

It the utility model is related to a kind of high-temperature insulation type NTC temperature sensors easy to install, aluminum shell including thermistor and with sealed end, include the big end part of main part and sealed end in the aluminum shell of land shape, aluminum shell is fixed with polyimide film layer in the end face of end part greatly, thermistor is arranged on the big end part of aluminum shell and connected with sealed end, two pins of thermistor are connected with respective wire one end on Teflon cable, and it is set with Kapton pipe on one of pin of thermistor, thermistor and pin are sealed with Teflon cable connection by the first epoxy resin layer to be fixed, self-extinguishment pipe sleeve is on Teflon cable and extends aluminum shell, first epoxy resin layer and the self-extinguishment seal of tube are fixed in aluminum shell by the second epoxy resin layer；Two wires of the Teflon cable other end are connected with clamped nipple.The utility model can improve insulating properties, and high temperature resistant is easy for installation, can clean, safe and reliable.

Description

High-temperature insulation type NTC temperature sensors easy to install

Technical field

A kind of high-temperature insulation type NTC temperature sensors easy to install are the utility model is related to, belong to temperature sensor technology Field.

Background technology

Electromagnetic oven be by electronic circuit board part produce alternating magnetic field, when with the bottom of pan containing irony place boiler face When, pan is to cut alternate magnetic force line and produce the electric current (being vortexed) of alternation in pan bottom metal portion, and vortex makes pan Iron molecule high speed random motion, molecule collide with each other, rubbed and produce heat energy, utensil is voluntarily generated heat at a high speed in itself, are used for Heating and cooking food, so as to reach the purpose cooked.With quick heating, thermal efficiency height, the flames of anger, smoke dust, the harmful gas of nothing Body, do not produce the advantages that good heat radiation, compact, security and appearance looks elegant to surrounding environment, the exhausted big of family can be completed Most culinary art tasks, for ease of controlling electromagnetic oven, by being provided with temperature sensor on electromagnetic oven.

Temperature sensor one kind for electromagnetic oven is that structure is to use split-type structural, by thermistor and TEMP Device support is formed, and is the supporting station that thermistor is placed to temperature sensor bracket such as CN201434427Y public technology schemes On, and its pin and signal wire are passed through out of both sides hole, thermistor and electromagnetic oven contacts baseplate can be made, although can improve The accuracy of temperature sensor of electromagnetic oven thermometric, but there is installing, inconvenient, the class of insulation is low, functional reliability is not high asks Topic.Another structure technical scheme as disclosed in CN201348294Y, is that thermistor is encapsulated on heat-conducting block, due to temperature-sensitive The naked leakage of the two pins of resistance be connected outside heat-conducting block, during installation with signal wire, and it is inconvenient not only to install, and equally also deposits insulating properties Can not it is high, using it is unstable the problem of.

The content of the invention

The purpose of this utility model, which is to provide one kind, can improve insulating properties, and high temperature resistant is easy for installation, can clean, use peace Complete reliable high-temperature insulation type NTC temperature sensors easy to install.

The utility model is that the technical scheme for reaching above-mentioned purpose is：A kind of high-temperature insulation type NTC temperature easy to install passes Sensor, including thermistor and the aluminum shell with sealed end, it is characterised in that：Include main part in the aluminum shell of land shape With the big end part of sealed end, the aluminum shell is fixed with polyimide film layer in the end face of end part greatly, and thermistor is set Put in the big end part of aluminum shell and connect with sealed end, two pins and the respective wire on Teflon cable of thermistor One end is connected, and Kapton pipe is set with one of pin of thermistor, thermistor and pin and iron fluorine Imperial cable connection is sealed by the first epoxy resin layer and fixed, and self-extinguishment pipe sleeve is on Teflon cable and extends aluminum shell, First epoxy resin layer and the self-extinguishment seal of tube are fixed in aluminum shell by the second epoxy resin layer；The two of the Teflon cable other end Wire is connected with clamped nipple.

The utility model temperature sensor employs thermistor, plays the aluminum shell and unofficial biography of sensing and protective effect The resistant to elevated temperatures Teflon cable of temperature signal, two pins of thermistor are connected with the respective wire one end of Teflon cable, Especially sealed, made in temperature sensor by epoxy resin after one of pin suit Kapton pipe of thermistor There are preferable high temperature resistant and insulating properties in tool portion.In addition, aluminum shell is fixed with polyimide film layer in the end face of end part greatly, The high temperature resistant and insulating properties of temperature sensor are improved, use is safer, while is also convenient for client's installation.The utility model heat Quick resistance and pin and Teflon cable connection are sealed by the first epoxy resin layer and fixed, and the first epoxy resin and are enclosed on iron Sealing is fixed in aluminum shell by the second epoxy resin layer again from clipper tube on fluorine dragon cable, passes through the knot of multi-level packaging Structure, make temperature sensor that there is preferable high temperature resistant, insulating properties and resistance to mechanical collision and warping resistance ability, it is easy to clean, Resistance value and B values precision height, uniformity are good, due to stable performance, energy accurate temperature controlling, can stablize work for a long time in various environment Make, ensure the security reliability of electromagnetic oven.Thermistor is encapsulated in aluminum shell and seals against end by the utility model to connect, And aluminum shell is in land shape, its sealed end is big end part, can expand temperature sensor with surveying the contact area of object, measurement essence Degree is high, and reaction speed is fast.The utility model carries out signal output using resistant to elevated temperatures Teflon cable, when being resistant to electromagnetic oven work Caused high temperature.Temperature sensor of the present utility model can use the monitoring of cooking bottom temperature, can be used for control circuit break-make work IGBT device temperature protection, the measure being adapted under hot environment.

Brief description of the drawings

Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the utility model high-temperature insulation type NTC temperature sensors easy to install.

Fig. 2 is the utility model high-temperature insulation type NTC temperature sensor partial enlargement structural representations easy to install.

Wherein：1-polyimide film layer, 2-aluminum shell, 2-1-hold part, 2-2-main part, 2-3-ring greatly Side, 3-from clipper tube, 4-Teflon cable, 5-clamped nipple, 6-thermistor, 6-1-pin, the 7-the first epoxy resin Layer, 8-Kapton pipe, the 9-the second epoxy resin layer.

Embodiment

As shown in Fig. 1,2, high-temperature insulation type NTC temperature sensors easy to install of the present utility model, including thermistor 6 and with sealed end aluminum shell 2.As shown in Fig. 1,2, the utility model includes main part 2-2 in the aluminum shell 2 of land shape With the big end part 2-1 of sealed end, the sealed end of aluminum shell 2 is big end part 2-1, increases by sealed end and surveys object Contact area, aluminum shell 2 are fixed with polyimide film layer 1 in the end face of end part 2-1 greatly, add the heat-resisting quantity of product And insulating properties, use is safer, is also convenient for the installation of user.As shown in Figure 2, the utility model thermistor 6 is arranged on aluminium The big end part 2-1 of shell 2 simultaneously connects with sealed end, when aluminum shell 2 is close on measured object, by the sealed end of increasing with And the thermistor 6 of sealed end is fitted in, temperature sensor has the characteristics of measurement accuracy is high, reaction speed is fast.

As shown in Fig. 1,2, the total length L of the utility model aluminum shell 2 is in 12 ± 2mm, and big end part 2-1 diameter D Exist in 22 ± 2mm, length L1 in 3 ± 1.5mm, main part 2-2 diameter in 12 ± 2mm, such as total length L of the aluminum shell 2 12 ± 1mm, and big end part 2-1 diameter D in 22 ± 1mm, length L1 in 3mm, main part 2-2 diameter D1 12 ± 1mm, compared to common big shell, aluminium is greatlyd save, while contact area is increased by big sealed end, and improved Reaction speed, due to small volume, content of epoxy resin can be reduced, energy-conserving and environment-protective, meet wideling popularize for low-carbon life.

As shown in Fig. 1,2, the inner side of the utility model aluminum shell 2 is provided with the ring side 2-3 of evagination, i.e. aluminum shell 2 reversely seals Ring side 2-3 of the end provided with evagination, can be facilitated by ring side 2-3 and install temperature sensor.

As shown in Figure 2, two pin 6-1 of the utility model thermistor 6 and the respective wire one end of Teflon cable 4 Connection, and Kapton pipe 8 is cased with one of pin 6-1 of thermistor 6, it is real by Kapton pipe 8 Now more preferable electrical isolation, thermistor 6 and pin 6-1 are sealed with the junction of Teflon cable 4 by the first epoxy resin layer 7 It is fixed, thermistor 6 and the wire of the junction of Teflon cable 4 are sealed, there are heat-resisting quantity and reliable insulating properties, from Clipper tube 3 is enclosed on Teflon cable 4 and extends aluminum shell 2, as shown in Fig. 1,2, the first epoxy resin layer of the utility model 7 Sealing is fixed in aluminum shell 2 by the second epoxy resin layer 9 with from clipper tube 3, should be existing silicones glass fibers from clipper tube 3 Sleeve pipe is tieed up, makes the utility model temperature sensor that there is fire-retardant, high temperature resistant, machinery and stable insulation, this practicality New temperature sensor is sealed by two-stage, and resistance value and B values precision are high, uniformity is good, and stable performance is easy to clean, can be Stablize for a long time in various environment, reliable work.

As shown in Figure 1, two signal wires of the other end of Teflon cable 4 of the present utility model are connected with clamped nipple 5, terminal Joint 5 is provided with jack, and temperature sensor can be directly plugged on into control board is connected with control circuit board, convenient to temperature The installation and removal of sensor.

In use, the devitrified glass that the temperature that the utility model temperature sensor can be close to heating pan bottom passes through On plate bottom surface, and it is combined together with drum, the change of the resistance of thermistor 6 influences the partial pressure of resistance, and microprocessor receives The temperature of the voltage signal of change, effectively observing and controlling pan, when the temperature of pan reaches 140 DEG C, then it should carry out shutdown protection.

The utility model temperature sensor is close to the front of IGBT device by heat-conducting silicone grease, and is pressed on pcb board, Temperature caused by IGBT device has been passed directly on thermistor 6, is reflected by the change of thermistor 6 and electric resistance partial pressure point The change in resistance of thermistor 6, directly reflect IGBT temperature change, when detecting IGBT temperature higher than 80 DEG C, then close Machine stops heating, avoids IGBT because temperature is too high and is burned.

Claims (3)

1. a kind of high-temperature insulation type NTC temperature sensors easy to install, including thermistor (6) and the aluminum shell with sealed end (2), it is characterised in that：Include the big end part (2-1) of main part (2-2) and sealed end, institute in the aluminum shell (2) of land shape State aluminum shell (2) and be fixed with polyimide film layer (1) in the end face of big end part (2-1), thermistor (6) is arranged on outside aluminium The big end part (2-1) of shell (2) simultaneously connects with sealed end, two pins (6-1) and the Teflon cable (4) of thermistor (6) Upper respective wire one end connection, and it is set with Kapton pipe on one of pin (6-1) of thermistor (6) (8), thermistor (6) and pin (6-1) are sealed with Teflon cable (4) junction by the first epoxy resin layer (7) fixes, It is enclosed on from clipper tube (3) on Teflon cable (4) and extends aluminum shell (2), the second epoxy resin layer (9) is by the first epoxy resin Layer (7) and it is fixed on from clipper tube (3) sealing in aluminum shell (2)；Two wires and clamped nipple of Teflon cable (4) other end (5) connect.

2. high-temperature insulation type NTC temperature sensors easy to install according to claim 1, it is characterised in that：Outside the aluminium The total length L of shell (2) in 12 ± 2mm, and the diameter D of big end part (2-1) in 22 ± 2mm, length L1 outside 3 ± 1.5mm, aluminium The diameter D1 of shell (2) main part (2-2) is in 12 ± 1mm.

3. high-temperature insulation type NTC temperature sensors easy to install according to claim 1, it is characterised in that：Outside the aluminium The reverse sealed end of shell (2) is provided with the ring side (2-3) of evagination.