CN111189558A - Battery temperature acquisition device - Google Patents

Battery temperature acquisition device Download PDF

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Publication number
CN111189558A
CN111189558A CN202010092763.9A CN202010092763A CN111189558A CN 111189558 A CN111189558 A CN 111189558A CN 202010092763 A CN202010092763 A CN 202010092763A CN 111189558 A CN111189558 A CN 111189558A
Authority
CN
China
Prior art keywords
hole
battery
circuit board
plate
temperature sensor
Prior art date
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.)
Pending
Application number
CN202010092763.9A
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Chinese (zh)
Inventor
沈鉴强
徐小平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Changzhou Advanced Connector Co Ltd
Original Assignee
Amphenol Changzhou Advanced Connector Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amphenol Changzhou Advanced Connector Co Ltd filed Critical Amphenol Changzhou Advanced Connector Co Ltd
Priority to CN202010092763.9A priority Critical patent/CN111189558A/en
Publication of CN111189558A publication Critical patent/CN111189558A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a battery temperature acquisition device, comprising: the separator plate is provided with a first side facing the battery electrode and a second side facing away from the battery electrode, and the separator plate is provided with a through hole aligned with the battery electrode; the acquisition circuit board is laid on the second side of the isolation plate, and the position of the acquisition circuit board corresponds to that of the through hole; the temperature sensor is arranged on the acquisition circuit board; and the first end of the heat conduction assembly is wrapped on the temperature sensor, the second end of the heat conduction assembly penetrates through the through hole and is connected with the battery electrode, and a gap is formed between the heat conduction assembly and the through hole. The invention solves the problems that a battery of new energy equipment generates a large amount of heat during power output and has higher safety risk under the condition of no effective monitoring measures.

Description

Battery temperature acquisition device
Technical Field
The invention relates to the technical field of batteries, in particular to a battery temperature acquisition device.
Background
The new energy battery is used for providing electric energy for new energy equipment, and is widely applied to various vehicle equipment such as electric automobiles, trains, bicycles and the like. The electric core of the new energy battery is generally encapsulated in the shell, and when the battery outputs power, the electric core can generate a large amount of heat, and if the large amount of heat is continuously accumulated, the safety accidents such as short circuit, sudden power loss and even spontaneous combustion of equipment of the new energy vehicle can be caused.
Disclosure of Invention
In order to overcome the defects in the prior art, a battery temperature acquisition device is provided so as to solve the problems that a battery of new energy equipment generates a large amount of heat during power output and has higher safety risk under the condition of no effective monitoring measures.
In order to achieve the above object, there is provided a battery temperature collecting device, including:
the separator plate is provided with a first side facing the battery electrode and a second side facing away from the battery electrode, and the separator plate is provided with a through hole aligned with the battery electrode;
the acquisition circuit board is laid on the second side of the isolation plate, and the position of the acquisition circuit board corresponds to that of the through hole;
the temperature sensor is arranged on the acquisition circuit board; and
the first end of the heat conduction assembly is wrapped on the temperature sensor, the second end of the heat conduction assembly penetrates through the through hole and is connected to the battery electrode, and a gap is formed between the heat conduction assembly and the through hole.
Further, the heat conducting assembly includes:
the aluminum bar is attached to the battery electrode and arranged in the through hole;
the nickel sheet stretches across between the temperature sensor and the through hole, the first end of the nickel sheet is connected to the aluminum bar, the second end of the nickel sheet is provided with an installation through hole, and the temperature sensor is contained in the installation through hole; and
and the heat-conducting glue is filled in the mounting through hole and covers the temperature sensor.
Furthermore, the edge of the installation through hole of the nickel sheet extends upwards to form a circle of baffle plates arranged along the circumferential direction of the installation through hole, and the inner sides of the baffle plates are filled with heat-conducting glue.
Furthermore, the heat-conducting glue is coated on the outer side of the baffle.
Further, the surface of the second side of division board is formed with the isolation recess, the isolation recess is located under the second end of nickel piece, just the size more than or equal to of isolation recess the size of the second end of nickel piece, the first end of gathering the circuit board bond in the second side of division board, the second end of gathering the circuit board extends the top of isolation recess and bond in the second end of nickel piece.
Furthermore, the bottom of gathering the circuit board is pasted and is had the reinforcing plate, the reinforcing plate is aimed at the installation through hole, just the size more than or equal to of reinforcing plate the size of installation through hole.
Further, the reinforcing plate is an epoxy resin glass plate.
Further, the collection circuit board is a flexible circuit board.
Further, the size of the separator is larger than the size of the top surface of the battery.
The battery temperature acquisition device has the beneficial effects that the isolation plate is erected at the electrode of the battery, the acquisition circuit board is installed on one side of the isolation plate, which is opposite to the battery electrode, the temperature sensor is arranged on the acquisition circuit board, and the heat of the battery electrode is conducted to the temperature sensor through the heat conduction assembly, so that the heat resistance of the temperature sensor is improved, the service life of the battery temperature acquisition device is prolonged, the phenomenon that the battery cell is tightly attached to the temperature sensor, the temperature sensor fails when the battery cell heats seriously, and the use of a new energy battery and the reliability of temperature monitoring are influenced is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a battery temperature acquisition device according to an embodiment of the present invention.
FIG. 2 is a sectional view taken along line A-A.
Fig. 3 is a partially enlarged view of fig. 2 at B.
Fig. 4 is an exploded structural diagram of a battery temperature acquisition device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a partition board according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a nickel plate according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a schematic structural diagram of a battery temperature acquisition device according to an embodiment of the present invention, fig. 2 is a cross-sectional view taken along line a-a in the drawing, fig. 3 is a partially enlarged view taken along line B in fig. 2, fig. 4 is a schematic exploded structural diagram of a battery temperature acquisition device according to an embodiment of the present invention, fig. 5 is a schematic structural diagram of a separator according to an embodiment of the present invention, and fig. 6 is a schematic structural diagram of a nickel plate according to an embodiment of the present invention.
Referring to fig. 1 to 6, the present invention provides a battery temperature collecting apparatus, including: the device comprises a partition board 1, an acquisition circuit board 2, a temperature sensor 3 and a heat conduction assembly 4.
In particular, the insulation panel 1 has opposite first and second sides. The first side of the separator faces the battery electrode 51 of the battery 5 and the second side of the separator faces away from the battery electrode 51. The separator 1 is provided with a through hole 11 aligned with the battery electrode 51. The acquisition circuit board 2 is laid on the second side of the isolation board 1. The position of the acquisition circuit board 2 corresponds to the position of the through hole. The collecting circuit board 2 is arranged opposite to the through hole 11. The temperature sensor 3 is mounted on the acquisition circuit board 2. The heat conducting member 4 spans between the temperature sensor 3 and the through hole 11. The first end of the heat conducting component 4 is wrapped on the temperature sensor 3. The second end of the heat conducting assembly 4 is disposed through the through hole 11, and the heat conducting assembly 4 is connected to the battery electrode 51. A gap is formed between the second end of the heat conductive member 4 and the through-hole 11. The isolation plate has the functions of insulation and carrying disc.
According to the battery temperature acquisition device, the isolation plate is erected at the electrode of the battery, the acquisition circuit board is installed on one side of the isolation plate, which is opposite to the battery electrode, the temperature sensor is arranged on the acquisition circuit board, and heat of the battery electrode is conducted to the temperature sensor through the heat conduction assembly, so that the heat resistance of the temperature sensor is improved, the service life of the battery temperature acquisition device is prolonged, the phenomenon that the battery core is tightly attached to the temperature sensor, the temperature sensor fails when the battery core is seriously heated, and the use of a new energy battery and the reliability of temperature monitoring are influenced is avoided.
The temperature sensor conducts heat through the heat conducting assembly, so that the temperature sensor is arranged on one side of the isolating plate, which is far away from the battery cell, and the damage to the battery cell can not be caused during the disassembly and assembly and the disassembly.
The heat conduction path of the battery temperature acquisition device is that heat of a battery electrode is transferred to the temperature sensor through the heat conduction assembly, after the temperature sensor acquires the temperature of the battery cell, the temperature data is acquired through the acquisition circuit board and is transmitted to the temperature data receiving equipment, so that the temperature data receiving equipment compares the real-time temperature of the battery cell with a preset temperature parameter value to judge whether the temperature of the battery cell is too high or normal, and when the temperature is too high, an alarm is given out to avoid safety accidents such as sudden power loss, short circuit or spontaneous combustion of new energy equipment due to damage caused by the too high temperature of the battery cell.
As a preferred embodiment, the heat conducting assembly 4 includes: aluminum bars 41, nickel plates 42 and heat conducting glue 43.
Specifically, the aluminum bar 41 is bonded to the battery electrode 51. Further, in the present embodiment, the size of the aluminum bars is larger than the size of the battery electrodes. The aluminum bars 41 are disposed in the through holes 11. The nickel plate 42 spans between the temperature sensor 3 and the through hole 11. A first end of the nickel plate 42 is connected to the aluminium bar 41. The second end of the nickel sheet 42 is provided with a mounting through hole. The temperature sensor 3 is accommodated in the mounting through hole. The heat conducting glue 43 is filled in the mounting through hole and covers the temperature sensor 3.
The aluminium bar laminating is on battery electrode's surface, and nickel plate laser welding aluminium bar, battery electrode's temperature transmit to the nickel piece through the welding point of aluminium bar, and temperature sensor places on the nickel piece, and heat transfer is to heat-conducting glue, and heat-conducting glue transmits to temperature sensor again. In the embodiment, the heat transfer path is clear, the heat transfer is rapid, and the response time is short. In addition, the heat conducting glue can rapidly transfer heat to the temperature sensor on one hand, and on the other hand, the heat conducting glue prevents liquid outside the mounting through hole from immersing the temperature sensor, so that the waterproofness is improved, and the battery temperature acquisition device is suitable for severe environments.
Furthermore, in order to improve the waterproof performance of the battery temperature collecting device of the present invention, the edge of the installation through hole of the nickel sheet 42 extends upward to form a circle of baffle 421 along the circumference of the installation through hole. The inner side of the baffle 421 is filled with the heat conductive paste 43. The heat conductive glue 43 covers the outside of the baffle 421.
In a preferred embodiment, the nickel plate is pre-plated along the outside of the shield 421 before filling with the thermal paste.
In the present embodiment, the surface of the second side of the partition board 1 is formed with the partition groove 12. The isolation groove 12 is located right below the second end of the nickel sheet 42, and the size of the isolation groove 12 is greater than or equal to the size of the second end of the nickel sheet 42. The first end of the collecting circuit board 2 is adhered to the second side of the isolation board 1. The second end of the collecting circuit board 2 extends to the upper part of the isolation groove 12 and is adhered to the second end of the nickel sheet 42. Through keeping apart the recess, further provide the influence of the heat of battery electricity core to temperature sensor, avoid temperature sensor to receive high temperature damage and become invalid.
In this embodiment, the size of the separator is larger than the size of the top surface of the battery.
In the present embodiment, the acquisition circuit board 2 is a flexible circuit board.
In a preferred embodiment, a reinforcing plate 21 is attached to the bottom of the collecting circuit board 2. The reinforcing plate 21 is aligned with the mounting through hole, and the size of the reinforcing plate 21 is larger than or equal to that of the mounting through hole. The reinforcing plate on the one hand completely cuts off the influence of the heat below the acquisition circuit board on the temperature sensor, and on the other hand, when the temperature sensor jolts from top to bottom, the pin that leads to temperature sensor and acquisition circuit board disconnection, and then lead to the temperature monitoring inefficacy.
In the present embodiment, the reinforcing plate 21 is an epoxy glass plate.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the invention is to be defined by the scope of the appended claims.

Claims (9)

1. A battery temperature collection device, comprising:
the separator plate is provided with a first side facing the battery electrode and a second side facing away from the battery electrode, and the separator plate is provided with a through hole aligned with the battery electrode;
the acquisition circuit board is laid on the second side of the isolation plate, and the position of the acquisition circuit board corresponds to that of the through hole;
the temperature sensor is arranged on the acquisition circuit board; and
the first end of the heat conduction assembly is wrapped on the temperature sensor, the second end of the heat conduction assembly penetrates through the through hole and is connected to the battery electrode, and a gap is formed between the heat conduction assembly and the through hole.
2. The battery temperature collection device of claim 1, wherein the thermally conductive assembly comprises:
the aluminum bar is attached to the battery electrode and arranged in the through hole;
the nickel sheet stretches across between the temperature sensor and the through hole, the first end of the nickel sheet is connected to the aluminum bar, the second end of the nickel sheet is provided with an installation through hole, and the temperature sensor is contained in the installation through hole; and
and the heat-conducting glue is filled in the mounting through hole and covers the temperature sensor.
3. The battery temperature collecting device according to claim 2, wherein a ring of baffle plates are formed by extending the edges of the mounting through holes of the nickel sheets upwards, and the baffle plates are arranged along the circumference of the mounting through holes, and the inner sides of the baffle plates are filled with heat-conducting glue.
4. The battery temperature collection device of claim 3, wherein the thermally conductive glue is coated on an outer side of the baffle.
5. The battery temperature collecting device according to claim 2, wherein an isolation groove is formed on the surface of the second side of the isolation plate, the isolation groove is located right below the second end of the nickel plate, the size of the isolation groove is larger than or equal to that of the second end of the nickel plate, the first end of the collecting circuit board is bonded to the second side of the isolation plate, and the second end of the collecting circuit board extends to the upper side of the isolation groove and is bonded to the second end of the nickel plate.
6. The battery temperature collecting device as claimed in claim 5, wherein a reinforcing plate is adhered to the bottom of the collecting circuit board, the reinforcing plate is aligned with the mounting through hole, and the size of the reinforcing plate is greater than or equal to the size of the mounting through hole.
7. The battery temperature acquisition device of claim 6, wherein the stiffener plate is an epoxy glass plate.
8. The battery temperature acquisition device of claim 1, wherein the acquisition circuit board is a flexible circuit board.
9. The battery temperature collection device of claim 1, wherein the size of the spacer plate is larger than the size of the top surface of the battery.
CN202010092763.9A 2020-02-14 2020-02-14 Battery temperature acquisition device Pending CN111189558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010092763.9A CN111189558A (en) 2020-02-14 2020-02-14 Battery temperature acquisition device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010092763.9A CN111189558A (en) 2020-02-14 2020-02-14 Battery temperature acquisition device

Publications (1)

Publication Number Publication Date
CN111189558A true CN111189558A (en) 2020-05-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010092763.9A Pending CN111189558A (en) 2020-02-14 2020-02-14 Battery temperature acquisition device

Country Status (1)

Country Link
CN (1) CN111189558A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022006801A1 (en) * 2020-07-09 2022-01-13 威睿电动汽车技术(宁波)有限公司 Temperature monitoring apparatus and battery module having same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022006801A1 (en) * 2020-07-09 2022-01-13 威睿电动汽车技术(宁波)有限公司 Temperature monitoring apparatus and battery module having same
EP4177584A4 (en) * 2020-07-09 2023-08-16 Viridi E-Mobility Technology (Ningbo) Co., Ltd. Temperature monitoring apparatus and battery module having same

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