LU505771B1 - Battery temperature collection system, and charging and discharging device - Google Patents

Battery temperature collection system, and charging and discharging device Download PDF

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Publication number
LU505771B1
LU505771B1 LU505771A LU505771A LU505771B1 LU 505771 B1 LU505771 B1 LU 505771B1 LU 505771 A LU505771 A LU 505771A LU 505771 A LU505771 A LU 505771A LU 505771 B1 LU505771 B1 LU 505771B1
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LU
Luxembourg
Prior art keywords
module
terminal
collection
temperature
temperature signal
Prior art date
Application number
LU505771A
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French (fr)
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LU505771A1 (en
Inventor
Hongwei Peng
Jun Hu
Original Assignee
Huizhou Eve Power Co Ltd
Eve Power Co Ltd
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Publication date
Application filed by Huizhou Eve Power Co Ltd, Eve Power Co Ltd filed Critical Huizhou Eve Power Co Ltd
Publication of LU505771A1 publication Critical patent/LU505771A1/en
Application granted granted Critical
Publication of LU505771B1 publication Critical patent/LU505771B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

Provided are a battery temperature collection system and a charging and discharging device. The battery temperature collection system includes at least one collection circuit, an analog-to-digital converter (ADC) module, a first signal transmission module, a second signal transmission module and a control module. One collection circuit includes a multichannel gating module and at least two temperature signal collection modules, a temperature signal output terminal of each temperature signal collection module of the at least two temperature signal collection modules is connected to an input terminal of the multichannel gating module, and a temperature signal collection module of the at least two temperature signal collection modules is configured to collect a temperature signal. The ADC module has an input terminal connected to an output terminal of the multichannel gating module. The first signal transmission module has a first terminal connected to an output terminal of the ADC module. The second signal transmission module has a first terminal connected to a control terminal of the multichannel gating module. The control module is connected to a second terminal of the first signal transmission module and a second terminal of the second signal transmission module.

Description

BY23EX1928FGPM-LU
Preliminary Amendments into National Phase
BATTERY TEMPERATURE COLLECTION SYSTEM, AND CHARGING AND LU505771
DISCHARGING DEVICE
TECHNICAL FIELD
The present application relates to battery management technologies, for example, to a battery temperature collection system and a charging and discharging device.
BACKGROUND
A battery and the management system of the battery are core components of the new energy device. Since the battery has risks of over-temperature, under-temperature, over-voltage, under- voltage, over-current, over-humidity and the like in the use process, the state parameters of the battery need to be monitored in real time in order to ensure the safety of the battery and the device.
Since the battery is highly susceptible to major safety problems such as combustion and explosion in the over-temperature state, the monitoring of the temperature parameters is particularly important in the above-described monitoring process.
In the related art, the design and manufacturing costs of the battery temperature collection system are relatively high, and the collection of battery temperatures is usually achieved in a manner of a one-to-one channel, which makes it difficult to achieve the redundant collection of the temperature of the single battery.
SUMMARY
The present application provides a battery temperature collection system and a charging and discharging device, so as to achieve the purpose of collecting a multichannel temperature signal for a battery under the premise of reducing the design and manufacturing costs.
In a first aspect, an embodiment of the present application provides a battery temperature collection system. The battery temperature collection system includes at least one collection circuit, an analog-to-digital converter (ADC) module, a first signal transmission module, a second signal transmission module and a control module. One collection circuit includes a multichannel gating module and at least two temperature signal collection modules, a temperature signal output terminal of each temperature signal collection module of the at least two temperature signal collection modules is connected to an input terminal of the multichannel gating module, and a temperature signal collection module of the at least two temperature signal collection modules is 1
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase configured to collect a temperature signal. The ADC module has an input terminal connected to LU505771 an output terminal of the multichannel gating module. The first signal transmission module has a first terminal connected to an output terminal ofthe ADC module. The second signal transmission module has a first terminal connected to a control terminal of the multichannel gating module.
The control module is connected to a second terminal of the first signal transmission module and a second terminal of the second signal transmission module.
In an embodiment, one multichannel gating module includes a first multichannel gating chip and a second multichannel gating chip. The first multichannel gating chip and the second multichannel gating chip are connected to multiple temperature signal collection modules.
In an embodiment, an enable signal output terminal of the second signal transmission module is connected to an enable terminal of the first multichannel gating chip, and the enable signal output terminal is further connected to an enable terminal of the second multichannel gating chip through an enable control circuit.
In an embodiment, the enable control circuit includes a first resistor, a second resistor, a third resistor and a switch transistor. A terminal of the first resistor is configured to be connected to a power supply terminal, another terminal of the first resistor is connected to a first terminal of the switch transistor, a second terminal of the switch transistor is configured to be grounded, and the first terminal of the switch transistor is further connected to the enable terminal of the second multichannel gating chip. The enable signal output terminal is connected to a control terminal of the switch transistor through the second resistor, and the third resistor is connected in parallel between the control terminal of the switch transistor and the second terminal of the switch transistor.
In an embodiment, the temperature signal collection module includes a first capacitor, a second capacitor, a fourth resistor and a fifth resistor. A terminal of the fourth resistor is configured to be connected to a power supply terminal, another terminal of the fourth resistor is connected to a first terminal of the first capacitor, and a second terminal of the first capacitor is configured to be grounded. The first terminal of the first capacitor is further connected to the temperature signal output terminal of the temperature signal collection module through the fifth resistor. The second capacitor is connected in parallel to the temperature signal output terminal and a ground terminal.
The first terminal of the first capacitor and the second terminal of the first capacitor also serve as a first temperature signal collection terminal and a second temperature signal collection terminal of the temperature signal collection module. 2
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase
In an embodiment, the collection circuit further includes a filter module. The temperature signal LU505771 output terminal of the temperature signal collection module is connected to the input terminal of the multichannel gating module through the filter module.
In an embodiment, the battery temperature collection system further includes an isolation power supply module. The isolation power supply module is configured to supply power to the multichannel gating module, the ADC module, the first signal transmission module, and the second signal transmission module.
In an embodiment, the battery temperature collection system further includes a communication interface connected to the control module.
In an embodiment, the first signal transmission module and the second signal transmission module each include a digital isolation chip.
In an embodiment, the ADC module includes a twelve-bit ADC chip.
In a second aspect, an embodiment of the present application further provides a charging and discharging device. The charging and discharging device includes any one of the battery temperature collection systems described in the embodiments of the present application.
The beneficial effects of the present application lie in that: the present application provides a battery collection system. The system includes the temperature signal collection module, the multichannel gating module and the control module. One multichannel gating module is configured to be connected to multiple temperature signal collection modules, and the gating of the multichannel gating module is controlled through the control module, so that the collection of multichannel temperature signals can be achieved through a small number of components, and thus the cost of the system is reduced. Moreover, a signal transmission module (the first signal transmission module and the second signal transmission module) is configured between the multichannel gating module and the control module, and the signal isolation transmission between the multichannel gating module and the control module can be achieved through the signal transmission module, thereby reducing the interference during the signal transmission, and ensuring the use safety of each module (unit) during the signal transmission.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a structural block diagram of a battery temperature collection system according to an 3
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase embodiment of the present application; LU505771
FIG. 2 is a schematic diagram of a configuration of a multichannel gating chip according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a temperature signal collection module according to an embodiment of the present application; and
FIG. 4 is a schematic structural diagram of an isolation power supply module according to an embodiment of the present application.
DETAILED DESCRIPTION
Embodiment one
This embodiment provides a battery temperature collection system. The battery temperature collection system includes at least one collection circuit, an analog-to-digital converter (ADC) module, a first signal transmission module, a second signal transmission module and a control module. One collection circuit includes a multichannel gating module and at least two temperature signal collection modules, a temperature signal output terminal of each temperature signal collection module of the at least two temperature signal collection modules is connected to an input terminal of the multichannel gating module, and a temperature signal collection module of the at least two temperature signal collection modules is configured to collect a temperature signal.
The ADC module has an input terminal connected to an output terminal ofthe multichannel gating module. The first signal transmission module has a first terminal connected to an output terminal of the ADC module. The second signal transmission module has a first terminal connected to a control terminal of the multichannel gating module. The control module is connected to a second terminal of the first signal transmission module and a second terminal of the second signal transmission module.
Exemplarily, in this embodiment, a number of collection circuits, and a number of multichannel gating modules and temperature signal collection modules included in the collection circuit are set according to requirements. FIG. 1 is a structural block diagram of a battery temperature collection system according to an embodiment of the present application. For example, referring to FIG. 1, in a possible implementation, the battery temperature collection system includes multiple temperature signal collection modules (A1-Mn) and multiple multichannel gating 4
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase modules (1~n), and the temperature signal collection modules (A1~Mn) and the multichannel LU505771 gating modules (1~n) form n collection circuits. The battery temperature collection system further includes an analog-to-digital converter (ADC) module 100, a first signal transmission module 300, a second signal transmission module 400 and a control module 500.
Exemplarily, in this embodiment, one temperature signal collection module is configured to collect a path of temperature signals, and an input terminal of one multichannel gating module is connected to output terminals of at least two temperature signal collection modules.
For example, a multichannel gating module 1 is used as an example. The multichannel gating module 1 is configured to be connected to the temperature signal collection modules A1~An.
Exemplarily, in this embodiment, a temperature signal collection terminal of the temperature signal collection module is connected to a battery pack, and the temperature signal collection module is configured to collect a temperature signal of at least one battery module in the battery pack.
Exemplarily, in this embodiment, the structure of the temperature signal collection module is not limited, and the temperature signal collection module may or may not include a temperature collection chip.
Exemplarily, in this embodiment, in addition to the implementation of the collection of the temperature signal, the collection circuit may be configured to include a filter module, and the filter module is configured to filter the collected temperature signal.
Exemplarily, the temperature signal output terminal of the temperature signal collection module is connected to the input terminal of the multichannel gating module through the filter module.
Exemplarily, in this embodiment, the structure of the multichannel gating module is not limited, and the multichannel gating module may be a multichannel gating switch, and the multichannel gating switch includes at least one multichannel gating chip and a peripheral circuit of the at least one multichannel gating chip.
Exemplarily, in this embodiment, the control module 500 may employ a microcontroller unit
MCU).
Referring to FIG. 1, an output terminal of the multichannel gating module is connected to an input 5
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase terminal of the ADC module 100, and an output terminal of the ADC module 100 is connected to LU505771 the control module 500 through the first signal transmission module 300.
Exemplarily, in this embodiment, the multichannel gating module is configured to communicate a signal transmission channel between a designated temperature signal collection terminal and the ADC module 100, so that the control module 500 receives a temperature collection signal of a designated battery module.
Exemplarily, in this embodiment, the first signal transmission module 300 is configured to implement the signal isolation transmission between the control module 500 and the ADC module 100.
Exemplarily, in this embodiment, the control module 500 is configured to output a gating control signal to the multichannel gating module so as to implement the gating control of the signal transmission channel. Exemplarily, referring to FIG. 1, the control module 500 is connected to a control terminal of the multichannel gating module through the second signal transmission module 400.
Exemplarily, in this embodiment, the second signal transmission module 400 is configured to implement the signal isolation transmission between the control module 500 and the multichannel gating module.
Exemplarily, in this embodiment, the signal isolation transmission between the control module 500 and the ADC module 100 and the multichannel gating module is configured to be implemented, so that a problem that the above-described multiple modules (units) are damaged in communication can be avoided.
Exemplarily, referring to FIG. 1, in this embodiment, the battery temperature collection system further includes an isolation power supply module 200. The isolation power supply module 200 is configured to supply power to the multichannel gating module, the ADC module 100, the first signal transmission module 300 and the second signal transmission module 400.
This embodiment provides a battery collection system. The system includes the temperature signal collection module, the multichannel gating module and the control module. One multichannel gating module is configured to be connected to multiple temperature signal collection modules, and the gating of the multichannel gating module is controlled through the 6
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase control module, so that the collection of multichannel temperature signals can be achieved LU505771 through a small number of components, and thus the cost of the system is reduced. Moreover, a signal transmission module (the first signal transmission module and the second signal transmission module) is configured between the multichannel gating module and the control module, and the signal isolation transmission between the multichannel gating module and the control module can be achieved through the signal transmission module, thereby ensuring the use safety of each module (unit) during the signal transmission. In this case, in this system, the isolation power supply module is configured to supply power to corresponding modules and units, so that the isolation between an input power supply of the system and a power supply inside the system can be achieved through the isolation power supply module, and thus the power safety of each module (unit) is ensured.
Exemplarily, in a possible implementation, one multichannel gating module may include multiple multichannel gating chips, and each of the multiple multichannel gating chips may employ an eight-to-one analog switch chip.
Exemplarily, in this scheme, a number of multichannel gating chips may be set according to requirements. For example, one multichannel gating module includes two multichannel gating chips, i.e., a first multichannel gating chip and a second multichannel gating chip, and the two multichannel gating chips may be configured to be connected to twelve temperature signal collection modules.
Exemplarily, according to the proportional relationship between the temperature signal collection module and the multichannel gating module described above, in a possible implementation, the battery temperature collection system may include thirty-six temperature signal collection modules and six multichannel gating chips.
Exemplarily, in a possible implementation, the model of the multichannel gating chip may be 74HC4051. With this model of chip, if two chips are configured to form one multichannel gate module, then the multichannel gating chip may be configured in the following manners.
FIG. 2 is a schematic diagram of a configuration of a multichannel gating chip according to an embodiment of the present application. Referring to FIG. 2, an enable signal output terminal
TADC CH D of the second signal transmission module is connected to an enable terminal EN of a first multichannel gating chip U17, and the enable signal output terminal TADC CH D is further connected to an enable terminal EN of a second multichannel gating chip U18 through an 7
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase enable control circuit. LU505771
Exemplarily, in this scheme, the enable control circuit is configured to control an enable operation of the first multichannel gating chip or the second multichannel gating chip at the same moment according to the enable signal output from the enable signal output terminal.
Referring to FIG. 2, as a possible implementation, the enable control circuit includes a first resistor R60, a second resistor R63, a third resistor R64, and a switch transistor Q9. À terminal of the first resistor R60 is configured to be connected to a power supply terminal VDD VT +3.3V, another terminal of the first resistor R60 is connected to a first terminal of the switch transistor
Q9, a second terminal of the switch transistor Q9 is configured to be grounded, and the first terminal of the switch transistor Q9 is further connected to the enable terminal EN of the second multi-pass gate chip U18. The enable signal output terminal TADC CH D is connected to a control terminal of the switch transistor Q9 through the second resistor R63, and the third resistor
R64 is connected in parallel between the control terminal of the switch transistor Q9 and the second terminal of the switch transistor Q9.
Exemplarily, on the basis of the scheme shown in FIG. 1, in this scheme, the power supply of the power supply terminal VDD VT +3.3V is provided by the isolation power supply module.
Exemplarily, in this scheme, X0~X7 in U17 and U18 is the input terminal, A~C is an address selection terminal, and Y is the output terminal.
Exemplarily, in this scheme, six input terminals designated in U17 and U18 are selected to be connected to the respective output terminals of the temperature signal collection module, respectively. Address selection terminals of the U17 and the U18 are configured to be connected to the respective control terminals of the second signal transmission module.
Output terminals of the U17 and the U18 are configured to be connected to the input terminal of the ADC module.
Exemplarily, in this scheme, the operation manner of the multichannel gating chip includes as follows.
When the second signal transmission module outputs a low level enable signal (generated by the control module and transmitted through the second signal transmission module), the enable terminal of the U17 is in a low level, the U17 is normally enabled, the enable terminal of the U18 8
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase is in a high level (Q9 is turned off, the power supply terminal pulls up the level of the enable LU505771 terminal of the U18), and the U18 is locked. When the U17 is normally enabled, a signal channel between one input terminal of the U17 and an output terminal of the U17 is gated according to an address code (generated by the control module and transmitted through the second signal transmission module) received by the address selection terminal. When the second signal transmission module outputs a high level enable signal, the enable terminal ofthe U17 is in a high level, the U17 is locked, the enable terminal of the U18 is in a low level (Q9 is turned on, and the level of the enable terminal of the U18 is pulled low), and the U18 is normally enabled. When the
U18 is normally enabled, a signal channel between one input terminal of the U18 and the output terminal of the U18 is gated according to the address code received by the address selection terminal.
Exemplarily, the ADC module includes a twelve-bit ADC chip. In this scheme, the model of the
ADC chip may be ADS1118IDGSR.
Exemplarily, in this scheme, the first signal transmission module and the second signal transmission module each include a digital isolation chip, and the selected model of the digital isolation chip may be n141E.
Exemplarily, in this scheme, the battery temperature collection system may be applied to the temperature collection of the battery pack in the 400V~1500V charging and discharging platform (device) based on the model selection of the multiple devices described above.
Exemplarily, in this scheme, the control of two multichannel chips can be achieved through a small number of ports based on the enable control circuit, so that the port resources of the corresponding module can be saved.
FIG. 3 is a schematic structural diagram of a temperature signal collection module according to an embodiment of the present application. Referring to FIG. 3, in a possible implementation, a temperature signal collection module includes a first capacitor C95, a second capacitor C53, a fourth resistor R50 and a fifth resistor R52.
A terminal of the fourth resistor R50 is configured to be connected to a power supply terminal
VCCA NTC, another terminal of the fourth resistor R50 is connected to a first terminal of the first capacitor C935, and a second terminal of the first capacitor C95 is configured to be grounded.
The first terminal of the first capacitor C95 is further connected to the temperature signal output 9
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase terminal AIN_NTC through the fifth resistor. The second capacitor C53 is connected in parallel LU505771 to the temperature signal output terminal AIN NTC and a ground terminal. The first terminal of the first capacitor C95 and the second terminal of the first capacitor C95 also serve as a first temperature signal collection terminal Cell NTC and a second temperature signal collection terminal Cell NTC GND.
Exemplarily, in this scheme, the first temperature signal collection terminal and the second temperature signal collection terminal serve as input terminals of the temperature signal collection module, and the temperature signal output terminal serves as an output terminal of the temperature collection circuit.
Exemplarily, on the basis of the scheme shown in FIG. 1, in this scheme, the power supply of the power supply terminal VCCA NTC is provided by the isolation power supply module.
Exemplarily, in this embodiment, the first capacitor C95 and the second capacitor C53 are configured to be filtered, the fourth resistor R50 is a thermistor, and the fifth resistor R52 is a measurement resistor.
FIG. 4 is a schematic structural diagram of an isolation power supply module according to an embodiment of the present application. Referring to FIG. 4, in a possible implementation, the isolation power supply module includes a first DC/DC module U7, a second DC/DC module U23, a voltage regulation module U9 and a power supply filter circuit.
Exemplarily, in this scheme, U7 employs a model of H0505S-1W, U23 employs a model of
H0505S-1WR3-CS, and U9 employs a model of TLV1117-33IDCYR.
Exemplarily, in this scheme, U7 is used in parallel with U23, and a peripheral circuit thereof is in a conventional configuration, and devices and functions included in the peripheral circuit will not be described in detail.
Exemplarily, in this scheme, the output of the DC/DC module is VDD VT +3.3V, and the
VDD VT +3.3V may be served as an input power supply for the multichannel gating chip in the scheme shown in FIG. 2, and may be served as input power supplies for the first signal transmission module, the second signal transmission module and the ADC module.
Exemplarily, in this scheme, the input of the power filter circuit is VDD VT +3.3V and the output of the power filter circuit is VCCA NTC, and VCCA NTC may be served as an input 10
BY23EX1928FGPM-LU
Preliminary Amendments into National Phase power supply for the temperature signal collection module in the scheme shown in FIG. 3. LU505771
Exemplarily, on the basis of the scheme shown in FIG. 1, in a possible implementation, the battery temperature collection system is further configured with a communication interface, and the communication interface is connected to the control module.
Exemplarily, in this scheme, the control module may be connected to an external device through the communication interface, thereby achieving the software configuration, software upgrade, or software maintenance for the control module.
Exemplarily, in a possible implementation, the communication interface employs a controller area network (CAN) interface, and correspondingly, the control module is configured to support CAN communication protocols.
Embodiment two
This embodiment provides a charging and discharging device, and the charging and discharging device includes any one of the battery temperature collection systems described in the embodiment one.
In this embodiment, the beneficial effect of the charging and discharging device of the battery temperature collection system is configured to be the same as the beneficial effect of the corresponding battery temperature collection system in the embodiment one, and details are not described herein. 11

Claims (10)

BY23EX1928FGPM-LU English translation of PCT/CN2022/143961 Claims LU505771
1. A battery temperature collection system, comprising: at least one collection circuit, wherein a collection circuit of the at least one collection circuit comprises a multichannel gating module and at least two temperature signal collection modules, a temperature signal output terminal of each of the at least two temperature signal collection modules is connected to an input terminal of the multichannel gating module, and the at least two temperature signal collection modules are configured to collect temperature signals; an analog-to-digital converter (ADC) module, wherein an input terminal of the ADC module is connected to an output terminal of the multichannel gating module; a first signal transmission module, wherein a first terminal of the first signal transmission module is connected to an output terminal of the ADC module; a second signal transmission module, wherein a first terminal of the second signal transmission module is connected to a control terminal of the multichannel gating module; and a control module, wherein the control module is connected to a second terminal of the first signal transmission module and a second terminal of the second signal transmission module.
2. The battery temperature collection system of claim 1, wherein the multichannel gating module comprises a first multichannel gating chip and a second multichannel gating chip; and the first multichannel gating chip is connected to a plurality of temperature signal collection modules, and the second multichannel gating chip is connected to a plurality of temperature signal collection modules.
3. The battery temperature collection system of claim 2, wherein an enable signal output terminal of the second signal transmission module is connected to an enable terminal of the first multichannel gating chip; the enable signal output terminal is further connected to an enable terminal of the second multichannel gating chip through an enable control circuit; the enable control circuit comprises a first resistor, a second resistor, a third resistor and a switch transistor; a terminal of the first resistor is configured to be connected to a power supply terminal, another terminal of the first resistor is connected to a first terminal of the switch transistor, a second 12
BY23EX1928FGPM-LU English translation of PCT/CN2022/143961 terminal of the switch transistor is configured to be grounded, and the first terminal of the switch 10505771 transistor is further connected to the enable terminal of the second multichannel gating chip; and the enable signal output terminal is connected to a control terminal of the switch transistor through the second resistor, and the third resistor is connected in parallel between the control terminal of the switch transistor and the second terminal of the switch transistor.
4. The battery temperature collection system of claim 1, wherein the temperature signal collection module comprises a first capacitor, a second capacitor, a fourth resistor and a fifth resistor; a terminal of the fourth resistor is configured to be connected to a power supply terminal, another terminal of the fourth resistor is connected to a first terminal of the first capacitor, and a second terminal of the first capacitor is configured to be grounded; the first terminal of the first capacitor is further connected to the temperature signal output terminal of the temperature signal collection module through the fifth resistor; the second capacitor is connected in parallel to the temperature signal output terminal and a ground terminal; and the first terminal of the first capacitor also serves as a first temperature signal collection terminal of the temperature signal collection module, and the second terminal of the first capacitor also serves as a second temperature signal collection terminal of the temperature signal collection module.
5. The battery temperature collection system of any one of claims 1 to 4, wherein the collection circuit further comprises a filter module, and the temperature signal output terminal of the temperature signal collection module is connected to the input terminal of the multichannel gating module through the filter module.
6. The battery temperature collection system of any one of claims 1 to 4, further comprising an isolation power supply module; and the isolation power supply module is configured to supply power to the multichannel gating module, the ADC module, the first signal transmission module, and the second signal transmission module.
7. The battery temperature collection system of any one of claims 1 to 4, further comprising a communication interface connected to the control module.
8. The battery temperature collection system of any one of claims 1 to 4, wherein the first signal 13
BY23EX1928FGPM-LU English translation of PCT/CN2022/143961 transmission module and the second signal transmission module each comprise a digital isolation 10505771 chip.
9. The battery temperature collection system of any one of claims 1 to 4, wherein the ADC module comprises a twelve-bit ADC chip.
10. A charging and discharging device comprising the battery temperature collection system of any one of claims 1 to 9. 14
LU505771A 2022-08-10 2022-12-30 Battery temperature collection system, and charging and discharging device LU505771B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222095940.6U CN218788660U (en) 2022-08-10 2022-08-10 Battery temperature acquisition system and charging and discharging equipment

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LU505771A1 LU505771A1 (en) 2024-02-12
LU505771B1 true LU505771B1 (en) 2024-04-18

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KR101569216B1 (en) * 2009-11-24 2015-11-16 삼성에스디아이 주식회사 Battery pack
CN205843837U (en) * 2016-07-21 2016-12-28 安徽江淮汽车股份有限公司 A kind of set of cells multichannel temperature testing circuit
CN207215304U (en) * 2017-08-28 2018-04-10 深圳市英蓓特科技有限公司 A kind of multichannel temperature Acquisition Circuit
CN208012779U (en) * 2018-01-23 2018-10-26 黄文通 Eight channel input temp collectors
CN110926645A (en) * 2019-12-19 2020-03-27 深圳市中新力电子科技有限公司 Big data monitoring multichannel temperature acquisition circuit
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