CN213985441U - Use sensor that temperature detected on-vehicle power battery FPC - Google Patents
Use sensor that temperature detected on-vehicle power battery FPC Download PDFInfo
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- CN213985441U CN213985441U CN202120079100.3U CN202120079100U CN213985441U CN 213985441 U CN213985441 U CN 213985441U CN 202120079100 U CN202120079100 U CN 202120079100U CN 213985441 U CN213985441 U CN 213985441U
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- temperature sensor
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- fpc
- power battery
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
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- 230000009545 invasion Effects 0.000 claims description 6
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- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims description 2
- UCHOFYCGAZVYGZ-UHFFFAOYSA-N gold lead Chemical compound [Au].[Pb] UCHOFYCGAZVYGZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
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- 238000005538 encapsulation Methods 0.000 abstract description 7
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- 239000004593 Epoxy Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model provides an use sensor that temperature detected on-vehicle power battery FPC, including the temperature sensor main part, set up in thermistor element on temperature sensor main part front side upper portion, set up in the electrode of both sides about the thermistor element, set up in the conducting material of upside electrode, set up in the protective layer of downside electrode, with the element sub-lead wire that the protective layer is connected and set up in the pin of temperature sensor main part both sides, the pin of both sides passes through the protective layer with element sub-pin connection. The utility model provides a temperature sensor is considered from the protection of temperature sensor itself, uses a neotype paster pattern to replace the pattern of current encapsulation, has avoided the product to need in the paster that can not avoid some processes to cause in corresponding above-mentioned FPC manufacturing process unusual, adopts the structure of notch cuttype pin to guarantee the utility model discloses a temperature sensor has self better intensity and high temperature resistance.
Description
Technical Field
The utility model belongs to the technical field of temperature sensor, concretely relates to use sensor at temperature detection on-vehicle power battery FPC.
Background
PACK lightweight and automation are the development direction of vehicle-mounted power batteries. The current situation is as follows: need carry out real-time temperature acquisition and voltage acquisition to battery module, traditional temperature acquisition uses the temperature sensor of pencil style, and the cloth is many, and the pencil is mixed and disorderly, is unfavorable for automation and lightweight. The monitoring mode of the domestic mainstream battery module is changed into FPC (flexible printed circuit) by a wire harness to carry out corresponding detection, and the purposes of automation and PACK light weight are achieved. The automation of FPC requires the use of SMD style temperature sensors. And the SMD (packaged 0402,0603,0805 …) is assembled on the FPC and is connected with the battery module pole through the nickel sheet for temperature measurement.
However, in the manufacturing process of the FPC in the prior art, there are working procedures such as PI reinforcement, hot pressing, baking and the like, and there are thermal stress and mechanical stress to the SMD package, which causes cracking abnormality of the temperature sensor. This phenomenon cannot be allowed for on-board products. In application, the protection level of PACK is not enough, or the inside condensate that produces etc. has under the condition of steam, very easily causes the damage to temperature sensor (the thermistor temperature measurement that the steam invasion leads to is unusual), and temperature sensor gathers unusually after advancing steam, can lead to whole car high temperature alarm, the false positive phenomenon of emergency stop.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned defect, provide one kind with thermistor chip package in sealed glue, have one deck silica gel protection, the external use epoxy carries out the shaping and encapsulates the sensor that uses temperature detection on-vehicle power battery FPC.
The utility model provides a following technical scheme: the utility model provides an use sensor that temperature detected on-vehicle power battery FPC, include the temperature sensor main part, set up in thermistor prime on temperature sensor main part front side upper portion, set up in the electrode of both sides about the thermistor prime, set up in the conducting material of upside electrode, set up in the protective layer of downside electrode, with prime lead wire that the protective layer is connected and set up in the pin of temperature sensor main part both sides, the pin of both sides passes through the protective layer with prime pin connection, the pin with the welding point of temperature sensor main part has and lifts up, reduces direct contact liquid area, the inside silica gel buffering sealing layer that is used for reducing the moisture invasion that is provided with of temperature sensor main part.
Furthermore, an epoxy resin coating layer is arranged outside the surface of the temperature sensor main body.
Further, the electrode is a silver electrode.
Further, the thermistor element is prepared from a metal acidification material.
Further, the protective layer is prepared from epoxy resin.
Further, the element leads are gold leads.
Further, the conductive material is silver tin paste.
Further, the pins lift the temperature sensor body away from the plane where the bottoms of the pins are located by 0.02mm +/-0.05 mm, and the plane where the bottoms of the pins are located has the top of the temperature sensor body by 1.1mm +/-0.15 mm.
Further, the width of the pin is 0.6mm +/-0.2 mm.
Further, the length of the temperature sensor main body is 2.65mm +/-0.2 mm, and the width of the temperature sensor main body is 1.6mm +/-0.15 mm; the distance between the pins on the two sides in the length direction of the temperature sensor main body is 3.80mm +/-0.15 mm.
The utility model has the advantages that:
1. the utility model provides a pair of use sensor that detects at on-vehicle power battery FPC goes up temperature to consider from the protection of temperature sensor itself, use a neotype paster pattern to replace the pattern of current encapsulation, avoided the product need not be in the paster that can not avoid some processes to cause in corresponding above-mentioned FPC manufacturing process unusual, the structure of adopting the notch cuttype pin has guaranteed the utility model discloses a temperature sensor has self better safeguard measure (intensity and high temperature resistant), under corresponding whole car complicated operating mode, bad conditions such as battery package steam invasion have self certain protective capacities (traditional SMD can not do this kind of protection). The utility model provides a temperature sensor changes encapsulation style, with thermistor chip package sealed in sealed glue, draw the electrode shaping, make SMD encapsulation style that can automize.
2. The utility model provides a one deck silica gel protection is done to the temperature sensor chip, and external epoxy carries out the shaping and encapsulates, has guaranteed its insulating properties.
3. The utility model provides a temperature sensor outward appearance adopts epoxy to replace the glass protective layer, and compressive strength is better.
4. The utility model provides a temperature sensor uses the gold electrode, and the stability of product temperature measurement is guaranteed.
5. The span of the electrode pins of the temperature sensor provided by the utility model is increased, the influence of continuous tin during the welding process of the product is effectively prevented, and the integrity of the thermistor body is ensured by adopting the stepped electrode pins; the surface of the thermistor is packaged by epoxy resin, and the inner silica gel is buffered and sealed, so that the problem of water intrusion is effectively solved; the utility model provides a temperature sensor intensity is big, and it is unfavorable that the product crack is difficult for in the course of working, and the temperature sensor main part has with the welding point to lift up, and the possibility of direct contact liquid is little.
Drawings
The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is an overall schematic diagram of a temperature sensor provided by the present invention;
fig. 2 is a top view of the temperature sensor provided by the present invention;
fig. 3 is a side view of the temperature sensor provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, for the utility model provides a pair of use sensor that temperature detected on-vehicle power battery FPC, a serial communication port, including temperature sensor main part 8, set up in thermistor element 1 on 8 front sides upper portions of temperature sensor main part, set up in electrode 2 of thermistor element 1 upper and lower both sides, set up in the conducting material 3 of upside electrode, set up in the protective layer 4 of downside electrode, the element lead wire 5 of being connected with protective layer 4 and set up in pin 6 of 8 both sides of temperature sensor main part, the pin of both sides passes through protective layer 4 and element lead wire 5 and connects, pin 6 has to lift up with the welding point of temperature sensor main part 8, reduces direct contact liquid area, and there is the silica gel buffering sealing layer that is used for reducing the moisture invasion even inside of temperature sensor main part 8.
The utility model provides a pair of use sensor at on-vehicle power battery FPC upper temperature detection is provided with epoxy coating 7 outside the temperature sensor main part surface, and electrode 2 is silver-colored electrode, and thermistor element 1 forms for the preparation of metal acidizing substance, and protective layer 4 forms for the preparation of epoxy, and element lead wire 5 is the gold lead wire, and conducting material is silver tin cream.
As shown in FIG. 3, the pins 6 lift the temperature sensor body 8 away from the plane of the bottom of the pins 6 by 0.02mm + -0.05 mm, and the plane of the bottom of the pins 6 has the top of the temperature sensor body 8 by 1.1mm + -0.15 mm.
As shown in fig. 2, the width of the pin 6 is 0.6mm ± 0.2mm, the length of the temperature sensor main body 8 is 2.65mm ± 0.2mm, and the width is 1.6mm ± 0.15 mm; the distance between the pins 6 at the two sides and the length direction of the temperature sensor main body 8 is 3.80mm +/-0.15 mm.
The utility model provides a pair of use sensor that detects at on-vehicle power battery FPC goes up temperature to consider from the protection of temperature sensor itself, use a neotype paster pattern to replace the pattern of current encapsulation, avoided the product need not be in the paster that can not avoid some processes to cause in corresponding above-mentioned FPC manufacturing process unusual, the structure of adopting the notch cuttype pin has guaranteed the utility model discloses a temperature sensor has self better safeguard measure (intensity and high temperature resistant), under corresponding whole car complicated operating mode, bad conditions such as battery package steam invasion have self certain protective capacities (traditional SMD can not do this kind of protection). The utility model provides a temperature sensor changes encapsulation style, with thermistor chip package sealed in sealed glue, draw the electrode shaping, make SMD encapsulation style that can automize.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The utility model provides an use sensor that temperature detected on-vehicle power battery FPC, its characterized in that, including temperature sensor main part (8), set up in thermistor element (1) on temperature sensor main part (8) front side upper portion, set up in electrode (2) of both sides about thermistor element (1), set up in conducting material (3) of upside electrode, set up in the protective layer (4) of downside electrode, with element lead wire (5) that protective layer (4) are connected and set up in pin (6) of temperature sensor main part (8) both sides, the pin of both sides passes through protective layer (4) with element lead wire (5) are connected, pin (6) are notch cuttype pin, pin (6) with the welding point of temperature sensor main part (8) has and lifts up, reduces direct contact liquid area, the temperature sensor main body (8) is internally provided with a silica gel buffer sealing layer for reducing the invasion of moisture.
2. The sensor for detecting the temperature of the vehicle-mounted power battery FPC as claimed in claim 1, wherein an epoxy resin coating layer (7) is disposed outside a surface of the temperature sensor body.
3. The sensor for temperature detection applied to the vehicle power battery FPC as recited in claim 1, wherein the electrode (2) is a silver electrode.
4. The sensor applied to the temperature detection of the FPC of the vehicle-mounted power battery is characterized in that the thermistor element (1) is made of a metal acid compound.
5. The sensor for detecting the temperature applied to the FPC of the vehicle-mounted power battery is characterized in that the protective layer (4) is made of epoxy resin according to claim 1.
6. The sensor for temperature detection applied to the vehicle power battery FPC as recited in claim 1, wherein the prime lead (5) is a gold lead.
7. The sensor applied to the temperature detection of the vehicle-mounted power battery FPC as recited in claim 1, wherein the conductive material is silver-tin paste.
8. The sensor for detecting the temperature of the vehicle power battery FPC as recited in claim 1, wherein said pin (6) lifts said temperature sensor body (8) 0.02mm + 0.05mm away from a plane where the bottom of said pin (6) is located, and the plane where the bottom of said pin (6) is located is 1.1mm + 0.15mm away from the top of said temperature sensor body (8).
9. Sensor for temperature detection applied to an FPC of a vehicle power battery according to claim 1, characterized in that the width of the pin (6) is 0.6mm ± 0.2 mm.
10. The sensor for detecting the temperature applied to the FPC of the vehicle-mounted power battery is characterized in that the length of the temperature sensor main body (8) is 2.65mm +/-0.2 mm, and the width of the temperature sensor main body is 1.6mm +/-0.15 mm; the distance between the pins (6) on the two sides and the length direction of the temperature sensor main body (8) is 3.80mm +/-0.15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079100.3U CN213985441U (en) | 2021-01-13 | 2021-01-13 | Use sensor that temperature detected on-vehicle power battery FPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079100.3U CN213985441U (en) | 2021-01-13 | 2021-01-13 | Use sensor that temperature detected on-vehicle power battery FPC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213985441U true CN213985441U (en) | 2021-08-17 |
Family
ID=77251112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120079100.3U Active CN213985441U (en) | 2021-01-13 | 2021-01-13 | Use sensor that temperature detected on-vehicle power battery FPC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213985441U (en) |
-
2021
- 2021-01-13 CN CN202120079100.3U patent/CN213985441U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
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, Tsinghua information port, North Science Park, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HOVERBIRD ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 2801, Building 2, Chuangxiang Building, Overseas Chinese Town, Beizhan Community, Minzhi Street, Longhua District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Huibeichuan Technology Co.,Ltd. Country or region after: China Address before: 2801, Building 2, Chuangxiang Building, Overseas Chinese Town, Beizhan Community, Minzhi Street, Longhua District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HOVERBIRD ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |