CN208780358U - A kind of temperature sensor applied to battery pack liquid cooling system - Google Patents
A kind of temperature sensor applied to battery pack liquid cooling system Download PDFInfo
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- CN208780358U CN208780358U CN201821588528.5U CN201821588528U CN208780358U CN 208780358 U CN208780358 U CN 208780358U CN 201821588528 U CN201821588528 U CN 201821588528U CN 208780358 U CN208780358 U CN 208780358U
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Abstract
The utility model discloses a kind of temperature sensors applied to battery pack liquid cooling system, comprising: fixing piece and probe；The temperature popped one's head in for sensing part to be measured, the fixing piece include fixed plate and the fixed part for fixing with part to be measured；The front of the fixed plate is arranged in described pop one's head in, and the back side of the fixed plate is arranged in the fixed part.The temperature sensor is applied in measurement power battery pack liquid cooling system, on the pipeline that temperature sensor is fixed on power battery pack liquid cooling system by the fixed part of fixed back, the temperature of cooling medium in the pipeline of the positive probe detection power battery pack liquid cooling system of fixed plate is set, avoid popping one's head in directly contact cooling medium, probe is caused to corrode, and then improves the service life of temperature sensor.
Description
Technical field
This application involves technical field of electronic components, and in particular to a kind of temperature biography applied to battery pack liquid cooling system
Sensor.
Background technique
As the battery system of one of in electric car three big critical components, major function is by electric energy and chemical energy
Mutual conversion, the storage and release of Lai Shixian electric energy.Any energy conversion device can all generate fever when work, and electric
The power of electrical automobile can generate a large amount of heat from 30KW~400KW etc. in conversion process.Inside battery function is led to by fever
Rate is excessively high, will affect the cycle life of battery, even can also jeopardize the safety of battery.It can be seen that cooling system for
Guarantee that cycle life, thermal safety and the consistency of battery are most important.Generally use what liquid cooling mode generated battery battery core
Heat takes battery system out of.
Temperature index is the key index for monitoring cell operating status, safety and battery cooling system working efficiency.Temperature
Degree sensor is widely used in automobile industry, by the variation of thermistor, to monitor the variation of output voltage or electric current, thus
Realize the monitoring to temperature.NTC (negative temperature coefficient) thermistor is that a kind of polycrystalline ceramics of mixed oxide constitutes thermal sensitivity
Semiconductor resistor, resistance value decline as the temperature rises, have cheap, best in quality, performance stabilization etc. excellent
Point is widely used in preparation temperature sensor and is used to measure temperature.In recent years, NTC temperature sensor new energy car battery group,
Motor, it is automatically controlled, in heat management system using more and more extensive.Continuous high temperature, high pressure, the evil of high vibration in new-energy automobile
In bad environment, the requirement of NTC temperature sensor is small in size, precision is high, fast response time, high reliablity.
The temperature sensor of existing battery pack liquid cooling system, by thermistor chip after packaging insulating is handled, directly
It patches in battery pack liquid cooling system, temperature sensor probe and cooling medium directly contact.It has the following disadvantages: 1,
Temperature sensor probe is cooled the corrosion penetration of medium, influences the service life of sensor, reduces temperature accuracy.2, warm
Degree sensor probe is cooled the swiftly flowing of medium and washes away, and reduces the accuracy of temperature monitoring.3, temperature sensor is visited
Head is cooled the large internal pressure power of medium, in addition the high-strength vibration of automobile, is easy to appear failure inside cooling system.
Therefore, the prior art has much room for improvement and improves.
Utility model content
The application is intended to provide a kind of temperature sensor applied to battery pack liquid cooling system, is easily installed, and avoids visiting
Head is directly contacted with the cooling medium of liquid cooling system.
This application provides a kind of temperature sensors applied to battery pack liquid cooling system, comprising: fixing piece and probe；Institute
The temperature popped one's head in for sensing part to be measured is stated, the fixing piece includes fixed plate and the fixed part for fixing with part to be measured；Institute
The front that the fixed plate is arranged in probe is stated, the back side of the fixed plate is arranged in the fixed part.
The temperature sensor, wherein the fixed part includes: first that one end is fixed on fixed plate reverse side
Elastic slice and one end are fixed on the second elastic slice on opposite sides of fixed plate reverse side；The other end of first elastic slice and
The other end of second elastic slice is mutually drawn close, and part to be measured is connected between first elastic slice and second elastic slice.
The temperature sensor, wherein the other end of first elastic slice is additionally provided with first lug, second bullet
The other end of piece is additionally provided with the second lug；The first lug and second lug are mutually directed towards protrusion；Described
One lug and second lug are used for when part to be measured is connected between first elastic slice and second elastic slice, stop to
Survey part abjection.
The temperature sensor, wherein the fixed part further include: force-applying piece；The force-applying piece is used to provide the described
The power that first elastic slice and second elastic slice move towards, to clamp part to be measured.
The temperature sensor, wherein the force-applying piece includes circlip；The first lug and second lug are equal
Opening for V-structure, two V-structures is directed away from the direction of other side；The opening of the circlip buckle V-structure.
The temperature sensor, wherein the front of the fixed plate is equipped with the embedding groove for fixing the probe, institute
Probe is stated to be embedded in the embedding groove.
The temperature sensor, wherein be additionally provided with adhesive between the probe and the embedding groove.
The temperature sensor, wherein the fixing piece is made of metal material.
The temperature sensor, wherein further include: the plug with the probe connection is arranged in the probe and institute
State the conducting wire between plug；The plug is for being plugged on peripheral control unit；One end of the conducting wire is connected to the plug
On, the other end is connected on the probe.
The temperature sensor, wherein the probe includes being cascading from inside to outside: thermistor is used
It for anti-scratch protective layer, and is connected in the encapsulated layer of protection thermistor for the thermal insulation layer of sealed insulation
Positive wire and negative wire on the thermistor；The positive wire, negative wire one end be both connected to the heat
On quick resistance, the other end is connect with the other end of the conducting wire.
The beneficial effects of the utility model are:
Temperature sensor applied to battery pack liquid cooling system provided herein, comprising: fixing piece and probe；It is described
The temperature popped one's head in for sensing part to be measured, the fixing piece include fixed plate and the fixed part for fixing with part to be measured；It is described
The front of the fixed plate is arranged in probe, and the back side of the fixed plate is arranged in the fixed part.The temperature sensor is answered
It uses in measurement power battery pack liquid cooling system, temperature sensor is fixed on power battery by the fixed part positioned at fixed back
On the pipeline of packet liquid cooling system, the cooling in the pipeline of the positive probe detection power battery pack liquid cooling system of fixed plate is set
The temperature of medium, avoid popping one's head in directly contact cooling medium, causes to corrode to probe, and then improve the use of temperature sensor
Service life.
Detailed description of the invention
Fig. 1 is the solid when temperature sensor provided by the utility model applied to battery pack liquid cooling system is face-up
Figure；
Fig. 2 be the temperature sensor back side provided by the utility model applied to battery pack liquid cooling system upward when solid
Figure；
Fig. 3 is the cross-sectional view of fixing piece provided by the utility model；
Fig. 4 is the structural schematic diagram of probe provided by the utility model.
Specific embodiment
The application is described in further detail below by specific embodiment combination attached drawing.
Temperature sensor provided by the present application applied to battery pack liquid cooling system is particularly used for power battery pack liquid cooling
The temperature sensor of system, the more particularly temperature sensor are fixed on the pipeline of liquid cooling system, there is stream in pipeline
Dynamic cooling medium fixes a temperature sensor the export and import of pipeline is each, and by two temperature sensors and external
Monitoring device connection, to monitor the temperature change of inlet and outlet, to realize the monitoring to power battery pack liquid cooling system.Through
Actual verification, the temperature which is monitored are consistent with temperature measured by the practical contact cooling medium of probe.
Shown in Figure 1, the temperature sensor provided by the present embodiment applied to battery pack liquid cooling system includes: fixation
Part 1 and probe 2, fixing piece 1 include fixed plate 11 and the fixed part 12 that 11 back side of fixed plate is arranged in, and probe 2 is arranged in fixation
The front of plate 11, fixed part 12 with part to be measured for fixing, and probe 2 is for sensing the temperature of part to be measured.In 11 front of fixed plate
One end embedding groove 13 is set, for fixed probe 2, probe 2 is embedded in the embedding groove 13 embedding groove 13, while being visited
Adhesive is set between first 2 and embedding groove 13, to increase the pull-out capacity of probe 2.Certainly, in other embodiments, probe can also
The front of fixed plate, such as gluing are fixed on by other fixed forms.
This temperature sensor is used in the temperature sensor on power battery pack liquid cooling system, and fixed part 12 is specifically to fix
On the pipeline of liquid cooling system, i.e., part to be measured is the pipeline of liquid cooling system, specifically the temperature of the cooling medium in measurement pipeline
Variation.Fixed part 12 is fixed with pipeline, the temperature of the probes sense pipeline at 11 back side of fixed plate is set, thus right
Cooling medium in pipeline carries out temperature measurement, compared to the existing aperture on pipeline, then inserts a probe into pipeline
Measurement method, present embodiment effectively avoid the directly contact cooling medium of probe 2 and cause to corrode to probe 2, improve
The service life of temperature sensor, compared to it is existing need to the aperture on pipeline, insert a probe into pipeline to cooling medium
The mode measured, avoids the risk of cooling medium leakage, and eliminates the treatment process being sealed to tapping,
Installation process further is simplified, improves production efficiency.In following embodiment, for ease of description by " part to be measured " with " pipe
It is illustrated for road ".
With continued reference to shown in Fig. 1, the temperature sensor further include: plug 3 and conducting wire 4.Plug 3 is connect with probe 2, is used
In being plugged on peripheral control unit；Between probe 2 and plug 3, i.e. one end of conducting wire 4 is connected on plug 4 setting of conducting wire 4,
The other end of conducting wire 4 is connected on probe 2.The positive other end of fixed plate 11 be arranged two tabs 14, conducting wire 4 it is another
End is located between two tabs 14, and blend compounds stick agent and are packaged.Plug 3 is plugged on peripheral control unit, probe 2 is visited
The temperature data measured is exported in real time to peripheral control unit, is analyzed by peripheral control unit measured temperature data,
It is controlled with the liquid cooling system to battery pack.
Shown in referring to figs. 2 and 3, fixed part 12 includes: the first elastic slice 121, the second elastic slice 122 and force-applying piece 125, and first
Elastic slice 121 and the second elastic slice 122 are arranged between the positive one end of fixed plate 11 and the other end, and one end of the first elastic slice 121 is solid
It is scheduled on 11 reverse side of fixed plate, one end of the second elastic slice 122 is fixed on the opposite side of 11 reverse side of fixed plate, is such as schemed
Shown in 2, the first elastic slice 121 and the second elastic slice 122 are separately positioned on the two sides of 11 length direction of fixed plate.First elastic slice
The other end of 121 other end and the second elastic slice 122 is mutually drawn close, and pipeline is connected to the first elastic slice 121 and the second elastic slice
Between 122.What the other end of the other end and the second elastic slice 122 that force-applying piece 125 is used to provide the first elastic slice 121 moved towards
Power, the power for drawing close two elastic slices mutually, with clamping pipe.
In the present embodiment, as shown in Figure 3, the back of the first elastic slice 121 and the second elastic slice 122 basically perpendicular to fixed plate 11
Face, and the section of the first elastic slice 121 and the second elastic slice 122 is linear type.In other embodiments, the first elastic slice 121 and
The shape of two elastic slices 122 can be set according to the true form of part to be measured, such as arc etc., the first elastic slice 121 and second
Angle between 11 back side of elastic slice 122 and fixed plate can be set according to the actual size of part to be measured, be greater than 90 degree etc..
It is additionally provided with first lug 123 in the other end of the first elastic slice 121, is also set up in the other end of the second elastic slice 122
There is the second lug 124.First lug 123 and the second lug 124 are mutually directed towards protrusion, are mutually directed towards the first of protrusion
Lug 123 and the second lug 124 are used for the first lug when pipeline is connected between the first elastic slice 121 and the second elastic slice 122
123 and second lug 124 protrusion stop pipeline abjection, fixed -piping effect is stronger, avoid temperature sensor because
Fallen off pipeline by high-intensity oscillation, while making fixed part 12 and the close secure bond of pipeline, avoids cooling medium
The loss of heat transfer improves the accuracy of measurement.
In one embodiment, force-applying piece 125 includes circlip, and first lug 123 and the second convex 124 ear are V type structure,
The opening of two V-structures is directed away from the direction of other side, and circlip buckles the opening of V-structure.
Certainly, in other embodiments, force-applying piece is also possible to other and provides opposite shifting for the first elastic slice and the second elastic slice
Dynamic structure, such as clip, clip clamps first lug and the second lug or first lug and the second lug is other shapes
Structure, only need to meet clamped for clip and stop pipeline deviate from.
As preferred embodiment, this fixing piece 1 is made of metal material, i.e. the first elastic slice 121, the second elastic slice 122,
First lug 123, third lug 124, embedding groove 13 and fixed plate 11 are metal material, and more particularly metal material includes not
Steel material of becoming rusty or titanium alloy material.Stainless steel material or titanium alloy material itself have certain elasticity so that product have compared with
Strong pressure-resistant effect, also improves the elastic effect of the first elastic slice and the second elastic slice.It is furthermore preferred that the first elastic slice 121, the second bullet
Piece 122, first lug 123, third lug 124, embedding groove 13 and fixed plate 11 are integrally formed, to form consolidating in the present embodiment
Determine part 1, not only saved the production cost of manufacture product, also improves the production efficiency of manufacture product.Certainly, in other implementations
In example, fixing piece can also be by being made with elastically-deformable non-metallic material.
Shown in Figure 4, in temperature sensor provided by the present embodiment, probe 2 includes stacking gradually to set from inside to outside
It sets: thermistor 21, encapsulated layer 22, thermal insulation layer 23 and protective layer 24, and the anode being connected on thermistor 21
Lead 25 and negative wire 26.Thermistor is specially NTC (negative temperature coefficient) thermistor, i.e., a kind of mixed oxide it is more
The thermal sensitivity semiconductor resistor that brilliant ceramics are constituted；Encapsulated layer 22 is specifically to be used to protect heat made of glass composite material
Quick resistance 21；Thermal insulation layer 23 is specifically to be used to seal absolutely encapsulated layer 22 made of the epoxy resin with high thermal conductivity
Edge；It is arranged on outermost protective layer 24 for preventing thermal insulation layer 23 from scratching；Positive wire 25 and negative wire 26
One end is both connected on thermistor 21, and the other end is connect with the other end of conducting wire.Positive wire 25 and negative wire 26 have
Body is lead made of unleaded material, and is welded when being welded on thermistor 21 using Pb-free solder.
The mode of temperature sensor provided by the present embodiment being assembled on pipeline is as follows:
Keep first lug 123 and the second lug 124 mobile to the direction far from other side by external force, makes the first elastic slice 121
It is opened with the second elastic slice 122, and open the first elastic slice 121 and the second elastic slice 122 is shifted into pipeline, unclamp first lug 123
With the second lug 124, the first elastic slice 121 and the second elastic slice 122 are mutually drawn close with clamping pipe, and first lug 123 and second is convex
Ear 124 blocks pipeline abjection；Force-applying piece 125 (circlip) is stuck in the opening of first lug 123 and the second lug 124, is
First elastic slice 121 and the second elastic slice 122 provide the power moved towards, make its firm clamping pipe.
In conclusion it is applied to the temperature sensor of battery pack liquid cooling system provided by the present embodiment, fixed part setting
At the back side of fixed plate, the first elastic slice and the second elastic slice on fixed part clamp pipeline, positioned at the first of the first elastic slice other end
Lug and pipeline abjection is blocked positioned at the second lug of the second elastic slice other end, force-applying piece is stuck in first lug and the second lug
Opening make its stronger clamping pipe, not because of vapour to provide the power moved towards to the first elastic slice and the second elastic slice
The vibration of vehicle and fall off from pipeline.Probe is arranged in the front of fixed plate, probe is not contacted directly with cooling medium, avoided
Corrosion of the cooling medium to probe, influences measurement effect, further improves the service life of product.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is only limited to these instructions.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of from the application design, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of temperature sensor applied to battery pack liquid cooling system characterized by comprising fixing piece and probe；It is described
The temperature popped one's head in for sensing part to be measured, the fixing piece include fixed plate and the fixed part for fixing with part to be measured；It is described
The front of the fixed plate is arranged in probe, and the back side of the fixed plate is arranged in the fixed part.
2. temperature sensor as described in claim 1, which is characterized in that the fixed part includes: that one end is fixed on fixed plate
The first elastic slice and one end on reverse side are fixed on the second elastic slice on opposite sides of fixed plate reverse side；Described
The other end of the other end of one elastic slice and second elastic slice is mutually drawn close, and part to be measured is connected to first elastic slice and institute
It states between the second elastic slice.
3. temperature sensor as claimed in claim 2, which is characterized in that the other end of first elastic slice is additionally provided with first
The other end of lug, second elastic slice is additionally provided with the second lug；The first lug and the mutual direction of the second lug
Other side's protrusion；The first lug and second lug are used to be connected to first elastic slice and second bullet in part to be measured
When between piece, part to be measured is stopped to be deviate from.
4. temperature sensor as claimed in claim 3, which is characterized in that the fixed part further include: force-applying piece；The force
Part is used to provide the described the power that the first elastic slice and second elastic slice move towards, to clamp part to be measured.
5. temperature sensor as claimed in claim 4, which is characterized in that the force-applying piece includes circlip；The first lug
It is V-structure with second lug, the opening of two V-structures is directed away from the direction of other side；The circlip buckles V
The opening of type structure.
6. temperature sensor as described in claim 1, which is characterized in that the front of the fixed plate is equipped with for described in fixation
The embedding groove of probe, the probe are embedded in the embedding groove.
7. temperature sensor as claimed in claim 6, which is characterized in that be additionally provided between the probe and the embedding groove
Adhesive.
8. temperature sensor as described in claim 1, which is characterized in that the fixing piece is made of metal material.
9. temperature sensor as described in claim 1, which is characterized in that further include: the plug with the probe connection, setting
Conducting wire between the probe and the plug；The plug is for being plugged on peripheral control unit；One end of the conducting wire
It is connected on the plug, the other end is connected on the probe.
10. temperature sensor as claimed in claim 9, which is characterized in that the probe includes stacking gradually to set from inside to outside
It sets: thermistor, for protecting the encapsulated layer of thermistor, for the thermal insulation layer of sealed insulation, for anti-scratch
Protective layer, and the positive wire and negative wire that are connected on the thermistor；The one of the positive wire, negative wire
End is both connected on the thermistor, and the other end is connect with the other end of the conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588528.5U CN208780358U (en) | 2018-09-27 | 2018-09-27 | A kind of temperature sensor applied to battery pack liquid cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588528.5U CN208780358U (en) | 2018-09-27 | 2018-09-27 | A kind of temperature sensor applied to battery pack liquid cooling system |
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| CN208780358U true CN208780358U (en) | 2019-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686916A (en) * | 2020-05-18 | 2021-11-23 | 郑州深澜动力科技有限公司 | Test system and test method for detecting cooling effect of power battery system |
-
2018
- 2018-09-27 CN CN201821588528.5U patent/CN208780358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686916A (en) * | 2020-05-18 | 2021-11-23 | 郑州深澜动力科技有限公司 | Test system and test method for detecting cooling effect of power battery system |
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Address after: 2801, Building 2, Chuangxiang Building, Overseas Chinese Town, Beizhan Community, Minzhi Street, Longhua District, Shenzhen, Guangdong 518000 Patentee after: SHENZHEN HOVERBIRD ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: No. 902, 9 / F, Tsinghua information port, North District, high tech Industrial Park, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HOVERBIRD ELECTRONIC TECHNOLOGY Co.,Ltd. |
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