CN206974562U - High accuracy surface temperature measurement type NTC temperature sensors easy to install - Google Patents
High accuracy surface temperature measurement type NTC temperature sensors easy to install Download PDFInfo
- Publication number
- CN206974562U CN206974562U CN201720791271.2U CN201720791271U CN206974562U CN 206974562 U CN206974562 U CN 206974562U CN 201720791271 U CN201720791271 U CN 201720791271U CN 206974562 U CN206974562 U CN 206974562U
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- CN
- China
- Prior art keywords
- copper
- copper sheathing
- connecting seat
- thermistor
- wire
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
It the utility model is related to a kind of high accuracy surface temperature measurement type NTC temperature sensors easy to install, including shell, thermistor and wire, the other end of wire is connected with clamped nipple, first epoxy resin layer fixes two pins of thermistor and thermistor and connecting position of wires sealing, shell includes the outside copper sheathing with nickel dam and the copper connecting seat with nickel dam with copper sheathing one and outside, copper connecting seat is provided with mounting hole, copper connecting seat is connected by rear flanging with copper sheathing, and the angle β between copper sheathing and copper connecting seat is at 135~150 °, copper sheathing both ends are in open-like shape, heat-shrink tube is coated on outside the first epoxy resin layer and wire, the heat-shrink tube being arranged in copper sheathing is fixedly connected by the second epoxy resin layer with copper sheathing, and the width dimensions of copper connecting seat are more than the width dimensions of copper sheathing.The utility model is easy for installation, can improve contact area and response time, can protrude the surface temperature measurement performance of temperature sensor, improves measurement accuracy.
Description
Technical field
A kind of high accuracy surface temperature measurement type NTC temperature sensors easy to install are the utility model is related to, belong to temperature sensor
Technical field.
Background technology
Expansion valve is an important component in refrigeration system, is generally mounted between liquid storage cylinder and evaporator.Expansion valve
Make moist steam of the liquid refrigerant of medium temperature high pressure by its throttling as low-temp low-pressure, then refrigerant absorbs in evaporator
Heat reaches refrigeration, and expansion valve is changed come control valve flow by the degree of superheat of evaporator end, prevents evaporation
The underutilization of device area and engine knock phenomenon.
Expansion valve is made up of valve body, temperature-sensitive bag, balance pipe three parts.Filling is satisfied in vapor liquid equilibrium in temperature-sensitive bag
With the refrigerant of state, this some refrigerant is not communicated with the refrigerant in system.It is usually to tie up in evaporator outlet
Guan Shang, it is in close contact with pipe to experience the superheated vapor temperature of evaporator outlet, because its internal refrigerant is saturation,
Therefore the pressure of saturation state is to valve body at a temperature of just being transmitted according to temperature.One end of balance pipe is connected on evaporator outlet and is slightly away from
On the position of temperature-sensitive bag, directly it is connected by capillary with valve body, its effect is the actual pressure for transmitting evaporator outlet to valve
Body.There are two diaphragms in valve body, diaphragm moves up under pressure to be made to reduce by the refrigerant flow of expansion valve, in dynamic
In seek to balance.
During expansion valve seeks dynamic equilibrium, temperature sensor serves vital effect, TEMP
The temperature of sensing is sent to control panel by device, by control system refrigeration system discontinuous, realizes measurement and control
The working condition of expansion valve, reach the perfect condition of required design.
The temperature sensor for being currently used for expansion valve mostly uses inductive head of the cylindrical metal shell as sensor, by heat
Quick resistive seal is in cylindrical metal shell, although this structure has preferable sealing property and insulating properties, due to column
The area of metal shell end face is smaller, and there is valve body area very little is fitted in, heat transfer efficiency is not high, and response is unhappy rapidly to ask
Topic, the reaction time of temperature-sensitive judgement can be influenceed, is unable to reach and is accurately controlled.
The content of the invention
The purpose of this utility model is to provide a kind of easy for installation, and the high accuracy surface easy to install that can improve the response time is surveyed
Warm type NTC temperature sensors.
The utility model is that the technical scheme for reaching above-mentioned purpose is：A kind of high accuracy surface temperature measurement type NTC temperature easy to install
Sensor is spent, including shell, thermistor and the wire being connected with two pins of thermistor, the other end of wire are connected with end
Sub- joint, the first epoxy resin layer fix two pins of thermistor and thermistor and connecting position of wires sealing, and it is special
Sign is：Described shell includes the outside copper sheathing with nickel dam and the copper connecting seat with nickel dam with copper sheathing one and outside,
Copper connecting seat is provided with mounting hole, and copper connecting seat is connected by rear flanging with copper sheathing, and the angle β between copper sheathing and copper connecting seat
At 135~150 °, copper sheathing both ends are in open-like shape, and heat-shrink tube is coated on outside the first epoxy resin layer and wire, is arranged on copper sheathing
Interior heat-shrink tube is fixedly connected by the second epoxy resin layer with copper sheathing, and the width dimensions of copper connecting seat are more than the width of copper sheathing
Size.
The utility model temperature sensor is by thermistor and the wire being connected with two pins of thermistor by first
Epoxy resin layer is sealed, then heat-shrink tube is coated on outside the first epoxy resin layer and wire, and thermistor is protected
Shield, the heat-shrink tube being arranged in copper sheathing are fixedly connected by the second epoxy resin layer with copper sheathing, therefore can be to the inductive head of shell
Portion uses the structure of multi-level packaging, ensure that the insulating properties of thermistor and pressure-resistant performance, safe and reliable.This practicality is new
Type shell, which employs one, has nickel dam and copper sheathing and copper connecting seat, temperature sensor sensitivity is guaranteed, and
It is not easy to be oxidized in the environment of certain humidity for a long time, the quality and service life of product is improved, on the other hand due to copper sheathing two
Hold as open-like shape, thermistor is also enable closer to copper mounting seat by multi-level packaging structure, due to copper connecting seat width dimensions
More than the width dimensions of copper sheathing, the reliable installation of copper sheathing was both facilitated, and can improves the contact area of temperature sensor and valve wall, carried
The high response time, and measurement accuracy is improved, the surface temperature measurement performance of temperature sensor can be protruded, realizes measurement and control expansion valve
Working condition, can reach needed for design perfect condition.Copper connecting seat is carried out bending processing by the utility model, facilitates user
Installation, can reach various angle installation requirements.
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 surface temperature measurement type NTC temperature sensors easy to install in high precision.
Fig. 2 is the structural representation of the utility model shell.
Wherein：1-shell, 1-1-copper connecting seat, 1-2-copper sheathing, 1-3-bulge loop, 2-thermistor, the 3-the first ring
Oxygen tree lipid layer, the 4-the second epoxy resin layer, 5-heat-shrink tube, 6-wire, 7-clamped nipple.
Embodiment
As shown in Figure 1, a kind of high accuracy of the present utility model surface temperature measurement type NTC temperature sensors easy to install, including it is outer
Shell 1, thermistor 2 and the wire 6 being connected with 2 two pins of thermistor, the other end of wire 6 are connected with clamped nipple 7, end
Sub- joint 7 is provided with jack, and temperature sensor can be directly plugged on into control board is connected with control circuit board, convenient to temperature
Spend the installation and removal of sensor.
As shown in Figure 1, the first epoxy resin layer 3 of the present utility model is by thermistor 2 and two pins of thermistor 2
Seal and fix with the junction of wire 6, the thermistor 2 is more suitable for expansion valve using the NTC thermistor of high-precision parameter
Detection.As shown in Fig. 1,2, the utility model shell 1 include the outside copper sheathing 1-2 with nickel dam and with copper sheathing 1-2 one and
Outside has the copper connecting seat 1-1 of nickel dam, can be formed integrally structure by welding, can be formed integrally structure by machining, and
Stimulate the menstrual flow after nickel plating, temperature sensor is not easy for a long time in the environment of certain humidity by oxygen while sensitivity is guaranteed
Change, product quality and its service life can be improved.As shown in Figure 1, the utility model copper connecting seat 1-1 is provided with mounting hole, copper
Connecting seat 1-1 is connected by rear flanging with copper sheathing 1-2, the angle β between copper sheathing 1-2 and copper connecting seat 1-1 at 135~150 °,
Angle β between such as copper sheathing 1-2 and copper connecting seat 1-1 is outer not interfering with by the angle of larger bending at 140 ± 2 °
On the premise of the intensity of shell 1, the installation and use of client can be facilitated.
As shown in Figure 1, copper sheathing 1-2 both ends of the present utility model are in open-like shape, and copper sheathing 1-2 cross sectional shape is polygon
Or it is circular, and copper sheathing 1-2 rear ends are provided with bulge loop 1-3, facilitate sealing, heat-shrink tube 5 is coated on the first epoxy resin layer 3 and wire 6
Outside, thermistor 2 is further protected by heat-shrink tube 5, and improve the insulating properties of thermistor 2, be arranged on copper sheathing 1-2
Interior heat-shrink tube 5 is fixedly connected by the second epoxy resin layer 4 with copper sheathing 1-2, therefore by multiple encapsulating structure, passes temperature
The insulation of sensor is pressure-resistant of a relatively high, and can guarantee that safety in utilization.The utility model is due to copper sheathing 1-2 uncovered structures, moreover it is possible to
Make thermistor 2 close to copper mounting seat, to improve the response time, the leading section of thermistor 2 of the present utility model with before copper sheathing 1-2
End face maintains an equal level or stretching copper sheathing 1-2 1~3mm of front end, such as stretches out copper sheathing 1-2 front end 2mm.
As shown in Figure 1, the utility model copper connecting seat 1-1 width dimensions be more than copper sheathing 1-2 width dimensions, with increase with
The contact area of valve body, the utility model copper connecting seat 1-1 thickness in 1.2 ± 0.4mm, the total length L of shell 1 in 22 ± 2mm,
Shell 1 is had larger contact area with expansion valve under less size, and improve heat transfer efficiency, pass through thermistor 2
Sense the change of expansion valve temperature, resistance will be changed and be transferred on control circuit board, realize accurate temperature control.
Claims (4)
1. a kind of high accuracy surface temperature measurement type NTC temperature sensors easy to install, including shell (1), thermistor (2) and and temperature-sensitive
The wire (6) of (2) two pin connections of resistance, the other end of wire (6) are connected with clamped nipple (7), the first epoxy resin layer
(3) two pins of thermistor (2) and thermistor (2) and the sealing of wire (6) junction are fixed, it is characterised in that：Institute
The shell (1) stated includes the outside copper sheathing (1-2) with nickel dam and is connected with copper sheathing (1-2) one and the outside copper with nickel dam
Seat (1-1), copper connecting seat (1-1) are provided with mounting hole, and copper connecting seat (1-1) is connected by rear flanging with copper sheathing (1-2), and copper
Angle β between (1-2) and copper connecting seat (1-1) is covered at 135~150 °, and copper sheathing (1-2) both ends are in open-like shape, heat-shrink tube (5)
It is coated on the first epoxy resin layer (3) and wire (6) is outside, the heat-shrink tube (5) being arranged in copper sheathing (1-2) passes through the second epoxy
Resin bed (4) is fixedly connected with copper sheathing (1-2), and the width dimensions of copper connecting seat (1-1) are more than the broad-ruler of copper sheathing (1-2)
It is very little.
2. high accuracy surface temperature measurement type NTC temperature sensors easy to install according to claim 1, it is characterised in that：It is described
Thermistor (2) leading section and copper sheathing (1-2) front end face maintain an equal level or stretch out 1~3mm of copper sheathing (1-2) front end face.
3. high accuracy surface temperature measurement type NTC temperature sensors easy to install according to claim 1, it is characterised in that：It is described
The cross sectional shape of copper sheathing (1-2) is polygon or circle, and copper sheathing (1-2) rear end is provided with bulge loop (1-3).
4. high accuracy surface temperature measurement type NTC temperature sensors easy to install according to claim 1, it is characterised in that：It is described
Angle β of the thickness of copper connecting seat (1-1) between 1.2 ± 0.4mm, copper sheathing (1-2) and copper connecting seat (1-1) at 140 ± 2 °,
And shell (1) total length L is in 22 ± 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791271.2U CN206974562U (en) | 2017-06-30 | 2017-06-30 | High accuracy surface temperature measurement type NTC temperature sensors easy to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791271.2U CN206974562U (en) | 2017-06-30 | 2017-06-30 | High accuracy surface temperature measurement type NTC temperature sensors easy to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206974562U true CN206974562U (en) | 2018-02-06 |
Family
ID=61406610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720791271.2U Expired - Fee Related CN206974562U (en) | 2017-06-30 | 2017-06-30 | High accuracy surface temperature measurement type NTC temperature sensors easy to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206974562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553751A (en) * | 2018-06-01 | 2019-12-10 | 深圳市科敏敏感元件科技有限公司 | Ultrathin temperature sensor and manufacturing method thereof |
-
2017
- 2017-06-30 CN CN201720791271.2U patent/CN206974562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553751A (en) * | 2018-06-01 | 2019-12-10 | 深圳市科敏敏感元件科技有限公司 | Ultrathin temperature sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |