CN206920034U - A kind of new temperature sensing sensor - Google Patents
A kind of new temperature sensing sensor Download PDFInfo
- Publication number
- CN206920034U CN206920034U CN201720872643.4U CN201720872643U CN206920034U CN 206920034 U CN206920034 U CN 206920034U CN 201720872643 U CN201720872643 U CN 201720872643U CN 206920034 U CN206920034 U CN 206920034U
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- Prior art keywords
- signal
- temperature
- sensing sensor
- temperature sensing
- temperature sensitive
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Abstract
A kind of new temperature sensing sensor, including thermometric portion, overcoat and transmission wire harness, overcoat is coated on outside thermometric portion, thermometric portion is made up of two temperature sensitive components with different RT characteristics, there are two signal exits on each temperature sensitive component, one signal exit of one of them temperature sensitive component is connected with a signal exit of another temperature sensitive component to form the signal common port of temperature sensing sensor, first signal and secondary signal of two temperature sensitive remaining two signal exits of component respectively as temperature sensing sensor, signal common port, first signal and secondary signal are drawn out to outside overcoat by transmitting three wires of wire harness respectively, the utility model enables temperature-measuring range to cover the temperature range that measured point temperature is likely to occur, so as to meet functional safety to the high design requirement for diagnosing coverage rate；In addition, two temperature sensitive components of redundancy are due to by the way of a public signal wire, not only saving sensor wiring, and improve the reliability of measurement.
Description
Technical field
It the utility model is related to temperature sensing sensor design field, and in particular to a kind of new temperature sensing sensor.
Background technology
With the appearance and constantly popularization of lithium ion battery, lithium ion battery has begun to continuous inside energy-storage system obtain
To popularization and application, and the application of new-energy automobile is quickly introduced.The battery system in three big electricity as new-energy automobile
System and electric system are required for accurately and reliably measurement temperature：Wherein battery system needs the temperature of accurate battery, with to battery
System does heat management control；Electric system then needs the temperature of accurate measurement motor, to do heat management control to electric system.This
Two systems are two big core drive parts of new-energy automobile, its importance and transmission automobile engine and its management system one
Sample, it is the heart of new-energy automobile.
Among the fast-developing engineering of new-energy automobile in recent years, there is many cases automobile and thermal runaway occur and occur
Accident that is on fire, smoldering and explode.
Road vehicle Functional Safety Standard ISO26262 issued in 2011, was subsequently introduced the country, and obtain most of OEM
With pursuing for supplier, and national standard is translated into, will formally issue the Functional Safety Standard of national standard version in the end of the year in 2017.
Functional safety core concept is exactly to ensure the reliability of electric-control system by Row control, conceptual design, avoid the occurrence of it is out of control,
What situations such as mistake, failure brought has the generation for endangering casualties and property loss.
Temperature survey is most important to above-mentioned heat management control, and as first link of heat management, temperature survey
Sensor be exactly originating point.On the other hand, how ISO26262 is designed sensor to meet that what the needs of functional safety gave sets
Meter instructs.
But it is whole at present to apply there has been no the temperature sensing sensor for meeting such demand, and generally using traditional single-point
Formula temperature sensing sensor, it is diagnosed, and coverage rate is relatively low, can not meet the high reliability request in future.
Utility model content
The utility model is in order to solve above mentioned problem existing for prior art, there is provided a kind of new temperature sensing sensor,
To solve in current new-energy automobile temperature sensing sensor diagnosis coverage rate relatively low, the high reliability request that can not meet future is asked
Topic.
To achieve the above object, the utility model provides a kind of new temperature sensing sensor, including thermometric portion, overcoat
With transmission wire harness, the overcoat is coated on outside thermometric portion, and the thermometric portion is by two temperature sensitive components with different RT characteristics
Composition, there is two signal exits on each temperature sensitive component, a signal exit of one of them temperature sensitive component with it is another
One signal exit of individual temperature sensitive component is connected to form the signal common port of temperature sensing sensor, and two temperature sensitive components are remaining
Two signal exits are respectively as the first signal and secondary signal of temperature sensing sensor, the signal common port, the first signal
It is drawn out to respectively by transmitting three wires of wire harness outside overcoat with secondary signal.
As further preferred technical scheme of the present utility model, the temperature sensitive component is by negative temperature coefficient resister, positive temperature
Degree coefficient resistance, thermocouple, one kind in diode, combination of two or more form.
As further preferred technical scheme of the present utility model, the material of the overcoat is high-temperature resin.
As further preferred technical scheme of the present utility model, the peace with heat conductivility is additionally provided with outside the overcoat
Assembling structure part, the mounting structure are used to for the temperature sensing sensor to be installed to the mechanical structure for thermometric.
Temperature sensing sensor of the present utility model can reach following beneficial effect：
Temperature sensing sensor of the present utility model, by including thermometric portion, overcoat and transmission wire harness, the overcoat cladding
Outside thermometric portion, the thermometric portion is made up of two temperature sensitive components with different RT characteristics, has two on each temperature sensitive component
Individual signal exit, a signal exit of one of them temperature sensitive component and a signal exit of another temperature sensitive component
It is connected to form the signal common port of temperature sensing sensor, two temperature sensitive remaining two signal exits of component are respectively as temperature-sensitive
The first signal and secondary signal of sensor, the signal common port, the first signal and secondary signal are respectively by transmitting wire harness
Three wires be drawn out to outside overcoat so that due to the temperature sensitive component using two kinds of different RT characteristics, it is surveyed the utility model
Warm scope can cover the temperature range that measured point temperature is likely to occur, so as to meet functional safety to high diagnosis coverage rate
Design requirement；In addition, two temperature sensitive components of redundancy are due to by the way of a public signal wire, not only saving sensor
Wiring, that is, reduce wire harness cost, and improve the reliability of measurement.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation for the example that the utility model temperature sensing sensor provides.
In figure：1st, wire harness is transmitted, 2, mounting structure, 3, overcoat, 4, temperature sensitive component, S1, the first signal, S2, second
Signal, COM, signal common port.
The utility model purpose is realized, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.In preferred embodiment
Cited such as " on ", " under ", "left", "right", only " centre " and " one " term, understanding for ease of narration, and be not used to
The enforceable scope of the utility model is limited, its relativeness is altered or modified, in the case where changing technology contents without essence, when also
It is considered as the enforceable category of the utility model.
Fig. 1 is the structural representation for the example that the utility model temperature sensing sensor provides, as shown in figure 1, a kind of new
Temperature sensing sensor include thermometric portion, overcoat 3 and transmission wire harness 1, the overcoat 3 is coated on outside thermometric portion, the thermometric
Portion is made up of two temperature sensitive components 4 with different RT characteristics, has two signal exits on each temperature sensitive component 4, wherein
One signal exit of one temperature sensitive component 4 is connected to form temperature-sensitive with a signal exit of another temperature sensitive component 4
The signal common port COM of sensor, two temperature sensitive 4 remaining two signal exits of component respectively as temperature sensing sensor
One signal S1 and secondary signal S2, the signal common port COM, the first signal S1 and secondary signal S2 are respectively by transmitting wire harness
1 three wires are drawn out to outside overcoat 3.
In specific implementation, the temperature sensitive component 4 is by negative temperature coefficient resister, positive temperature coefficient resistor, thermocouple, diode
In one kind, combination of two or more form, to cause the temperature-measuring range of the temperature sensitive component 4 of two kinds of different RT characteristics to cover quilt
The scope for the temperature that measuring point temperature is likely to occur.
In specific implementation, the material of the overcoat 3 is high-temperature resin, core of the thermometric portion as temperature sensing sensor
Part, it is protected by high-temperature resin, can reach the sealing requirements of waterproof and dustproof；High withstand voltage design grade can also be reached simultaneously,
Prevent application process from electric breakdown phenomena occur.
The mounting structure 2 with heat conductivility is additionally provided with outside the overcoat 3, the mounting structure 2 is used for institute
State temperature sensing sensor and be installed to mechanical structure for thermometric.
Transmission wire harness 1 is connected with temperature collection circuit, and when temperature sensing sensor works, outside heat is by possessing thermal conductivity
The mounting structure 2 of energy transfers heat to sensor internal, and temperature survey is completed by temperature sensitive component 4, and according to measured temperature
Change by transmit wire harness 1 export analog signal.
When temperature collection circuit measures, there is provided simulation of the two-way simulation output interface to the first signal S1 and secondary signal S2
Signal is acquired, and according to the temperature characterisitic of temperature sensing sensor, current temperature value is calculated.First signal S1 and second
Signal S2 measurement typically requires to measure simultaneously, avoids the temperature difference caused by matter of time and produces erroneous judgement.
When the temperature gap that two paths of signals and reckoning that measuring apparatus or control device obtain are drawn is in design accuracy scope
Within, then it is determined as that temperature sensing sensor is working properly.
When for example making warming component using negative temperature coefficient resister, error is 1 DEG C.If the first signal S1 and secondary signal
The temperature error that S2 measurements obtain then judges that exception occurs in temperature sensing sensor or warming component occurs in temperature sensing sensor more than 1 DEG C
Drifting fault or drift failure.
By the way that a signal end of two temperature sensitive components 4 is carried out into circuit in parallel, signal common port COM is formed, as one
Individual signal wire is drawn；Other temperature sensitive 4 remaining signal of component, which is individually drawn, then constitutes 3 output signal line temperature sensing sensors.
By the filled high-temperature resin progress drying and processing between temperature sensitive component 4 and mounting structure 2, can so realize
Waterproof and dustproof and the requirement for improving stress levels.
Although the foregoing describing specific embodiment of the present utility model, those skilled in the art should manage
Solution, these are merely illustrative of, and various changes or modifications can be made to present embodiment, without departing from original of the present utility model
Reason and essence, the scope of protection of the utility model are only limited by the claims that follow.
Claims (4)
1. a kind of new temperature sensing sensor, it is characterised in that including thermometric portion, overcoat and transmission wire harness, the overcoat
It is coated on outside thermometric portion, the thermometric portion is made up of two temperature sensitive components with different RT characteristics, on each temperature sensitive component
There are two signal exits, a signal exit of one of them temperature sensitive component draws with a signal of another temperature sensitive component
Go out end to be connected to form the signal common port of temperature sensing sensor, two temperature sensitive remaining two signal exits of component respectively as
The first signal and secondary signal of temperature sensing sensor, the signal common port, the first signal and secondary signal pass through transmission respectively
Three wires of wire harness are drawn out to outside overcoat.
2. according to the new temperature sensing sensor described in claim 1, it is characterised in that the temperature sensitive component is by negative temperature coefficient
One kind, combination of two or more in resistance, positive temperature coefficient resistor, thermocouple, diode form.
3. according to the new temperature sensing sensor described in claim 2, it is characterised in that the material of the overcoat is high temperature tree
Fat.
4. according to the new temperature sensing sensor described in any one of claims 1 to 3, it is characterised in that outside the overcoat also
Provided with the mounting structure with heat conductivility, the mounting structure is used to the temperature sensing sensor being installed to for thermometric
Mechanical structure on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720872643.4U CN206920034U (en) | 2017-07-18 | 2017-07-18 | A kind of new temperature sensing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720872643.4U CN206920034U (en) | 2017-07-18 | 2017-07-18 | A kind of new temperature sensing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920034U true CN206920034U (en) | 2018-01-23 |
Family
ID=61347709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720872643.4U Expired - Fee Related CN206920034U (en) | 2017-07-18 | 2017-07-18 | A kind of new temperature sensing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920034U (en) |
-
2017
- 2017-07-18 CN CN201720872643.4U patent/CN206920034U/en not_active Expired - Fee Related
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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: 20180123 Termination date: 20190718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |