CN109910682A - A kind of temperature control module, electric vehicle and system applied to battery power supply system - Google Patents
A kind of temperature control module, electric vehicle and system applied to battery power supply system Download PDFInfo
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- CN109910682A CN109910682A CN201910132990.7A CN201910132990A CN109910682A CN 109910682 A CN109910682 A CN 109910682A CN 201910132990 A CN201910132990 A CN 201910132990A CN 109910682 A CN109910682 A CN 109910682A
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- battery
- temperature
- control module
- temperature control
- power supply
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- 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
Abstract
The embodiment of the present invention discloses a kind of temperature control module, electric vehicle and system applied to battery power supply system, battery power supply system includes battery and temperature control module, temperature control module includes two or more temperature conditioning units, it is connected in parallel between temperature conditioning unit, one end of temperature control module is electrically connected the battery, and the other end is electrically connected load circuit；Each temperature conditioning unit in two or more temperature conditioning units has different threshold values, the raising when the temperature of the battery reaches corresponding threshold value of the resistance value of temperature conditioning unit.The safety of battery can be improved in the embodiment of the present invention.
Description
Technical field
The present invention relates to field of batteries, and in particular to it is a kind of applied to the temperature control module of battery power supply system, electric vehicle and
System.
Background technique
The advantages that due to energy density height, good cycle, operating voltage height, memory-less effect, lithium ion battery has become
For one of most widely used secondary cell.In lithium ion battery charge and discharge process, due to electrochemical reaction and battery itself
Internal resistance can generate heat, if these heats cannot be discharged in time, can accumulate together, if heat for a long time carry out
Accumulation may result in battery overheat, or even cause battery thermal runaway, to influence the chemical property of battery and use is safe
Property.Therefore, lithium ion battery work how to be kept to have become a technical problem urgently to be resolved in suitable temperature range.
Currently, a kind of mode for keeping lithium ion battery work in suitable temperature range are as follows: many places are arranged in battery
Temperature is transferred to battery management system (battery management system, BMS) by thermocouple, thermocouple, and BMS carries out operation
Output is used for the control signal of regulating cell power afterwards.Although the above method can keep lithium ion battery work in suitable temperature
It spends in range, but in the case where the appearance of the software modules such as BMS crashes and restarts equal, will be unable to protect battery, so that drop
The low safety of battery.
Summary of the invention
The embodiment of the invention discloses a kind of temperature control modules, electric vehicle and system applied to battery power supply system, are used for
Improve the safety of battery.
First aspect discloses a kind of temperature control module applied to battery power supply system, and battery power supply system includes battery and temperature
Module is controlled, temperature control module includes two or more temperature conditioning units, is connected in parallel between temperature conditioning unit, one end of temperature control module
It is electrically connected the battery, the other end is electrically connected load circuit, and each temperature conditioning unit in two or more temperature conditioning units has
Different threshold values, the raising when the temperature of battery reaches corresponding threshold value of the resistance value of temperature conditioning unit.As the temperature of battery constantly increases
Add, the temperature for being conducted to temperature conditioning unit in temperature control module also increases, and reaches the temperature conditioning unit in the temperature for being conducted to temperature conditioning unit
When corresponding threshold values, the resistance value of the temperature conditioning unit is increased, and the resistance in circuit increases where causing battery, and electric current reduces, due to electricity
Pond heat production power is related to electric current, and therefore, as electric current reduces, the heat production power of battery is reduced.When the heat production power of battery is small
After the heat radiation power of battery, battery temperature is begun to decline, when the temperature decline of battery leads to the temperature for being conducted to temperature conditioning unit
When threshold values corresponding less than the temperature conditioning unit, the resistance value of temperature conditioning unit is restored to low-resistance state of value, the resistance in circuit where battery
It reduces, electric current increases.Therefore, it connects in the loop the electric current in circuit where the adjustable battery of temperature control module in battery, into
And regulating cell heat production power, it thereby may be ensured that battery work in suitable temperature range.As it can be seen that temperature control module is to battery
Protection is protected by the intrinsic physical attribute of temperature-sensing element (device), is not in the problems such as crash is restarted, therefore, can
To improve the safety of battery.
As a kind of possible embodiment, two or more temperature conditioning units may include one or more positive temperature
Coefficient resistance (positive temperature coefficient, PTC), the resistance value of PTC is less than in the temperature of battery to be corresponded to
Threshold value when be the first resistance value, battery temperature be greater than corresponding threshold value when be the second resistance value, the first resistance value less than second resistance
Value.In the case where temperature control module only includes PTC, since different PTC have different threshold values, the resistance value of these PTC with
The temperature raising of battery successively increase suddenly in different temperature points so that the resistance echelon in circuit where entire battery increases,
As it can be seen that the electric current in circuit where battery is also to be gradually reduced as the temperature of battery increases, rather than reduce suddenly,
The battery and other batteries it is used in parallel in the case where, can to avoid because the battery current reduces suddenly cause therewith parallel connection its
The serious bias current of his battery generates the risk of overcurrent.Further, since PTC is temperature-sensing element (device), resistance value variation with temperature is taken
Certainly in its physical attribute, independent of temperature collecting device and control algolithm, reliability is higher.Further, since in the temperature of battery
After degree reaches the corresponding threshold value of PTC, it is capable of the charge/discharge current of volitional check battery, prevents battery from entering thermal runaway state；
After the temperature of battery drops to the corresponding threshold value of PTC or less, the resistance value of PTC restores normal value, and guard mode releases, Ke Yishi
The multiplexing of existing battery.
As a kind of possible embodiment, two or more temperature conditioning units include one or more temperature detect switch (TDS)s
(temperature switch, TS), TS is in the conductive state in the case where the temperature of battery is less than corresponding threshold value, in electricity
The temperature in pond is in an off state greater than in the case where corresponding threshold value.In the case where temperature control module only includes TS, due to not
With TS, corresponding threshold value is different, and therefore, these TS are successively turned off with the temperature raising of battery, it is seen then that circuit where battery
Electric current is also rather than to reduce suddenly as the temperature increase of battery is gradually reduced, in parallel with other batteries in the battery
It, can be to avoid the risk for leading to other batteries in parallel connection overcurrents because of the unexpected open circuit of temperature control module in the case where use.It both is including TS
Also in the case where including PTC, since the corresponding threshold value of different TS and different PTC is different, these TS with battery temperature
Raising successively turns off, the resistance value of these PTC successively increases suddenly as the temperature of battery increases, it is seen then that circuit where battery
Electric current is also rather than to reduce suddenly as the temperature increase of battery is gradually reduced, in parallel with other batteries in the battery
In the case where use, the risks of other batteries in parallel connection overcurrents can be led to avoid because the battery current reduces suddenly.Further, since
TS and PTC is temperature-sensing element (device), can be filled directly with the variation regulating switch or resistance value of temperature independent of temperature acquisition
It sets and control algolithm, reliability is higher.Further, since after the temperature of battery reaches the corresponding threshold value of TS or PTC, it being capable of automatic limiting
The charge/discharge current of battery processed prevents battery from entering thermal runaway state；Drop to TS in the temperature of battery or PTC is corresponding
After below threshold value, TS is reclosed or the resistance value of PTC restores normal value, and guard mode releases, and the multiplexing of battery may be implemented.
As a kind of possible embodiment, temperature control module can be set in inside battery.In battery-heating, in battery
The temperature in portion is higher than the temperature of outside batteries, since temperature control module is arranged in inside battery, can more delicately respond battery
Temperature change therefore can more accurately guarantee battery work in suitable temperature range.
As a kind of possible embodiment, temperature control module can be set in outside batteries.Since temperature control module setting exists
Outside batteries have no need to change the structure of inside battery, and compatibility is preferably.
As a kind of possible embodiment, one end of temperature control module is directly connected to battery.Since temperature control module directly connects
Battery is connect, therefore, the temperature of battery can rapidly be conducted to temperature control module, so as to improve temperature control efficiency.Further, since
Temperature control module is directly connected to battery, so that the conduction distance of battery temperature is smaller, therefore, it is possible to reduce heat is produced due to transmission
Raw loss, to be conducted to the temperature of temperature control module closer to the temperature of battery, so as to improve accuracy of temperature control.
Second aspect discloses a kind of battery power supply system, may include appointing in battery and first aspect or first aspect
A kind of disclosed temperature control module for being applied to battery power supply system of possible embodiment.
The third aspect discloses a kind of electric vehicle, may include battery power supply system disclosed in load circuit and second aspect.
Fourth aspect discloses a kind of terminal device, may include the power supply of battery disclosed in load circuit and second aspect system
System.
5th aspect discloses a kind of electrical equipment, may include the power supply of battery disclosed in load circuit and second aspect system
System.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of temperature control module disclosed by the embodiments of the present invention；
Fig. 2 is a kind of diagrammatic cross-section of battery power supply system disclosed by the embodiments of the present invention；
Fig. 3 is the diagrammatic cross-section of another battery power supply system disclosed by the embodiments of the present invention；
Fig. 4 is the diagrammatic cross-section of another battery power supply system disclosed by the embodiments of the present invention；
Fig. 5 is the diagrammatic cross-section of another battery power supply system disclosed by the embodiments of the present invention；
Fig. 6 is a kind of structural schematic diagram of electric vehicle disclosed by the embodiments of the present invention；
Fig. 7 is a kind of structural schematic diagram of terminal device disclosed by the embodiments of the present invention；
Fig. 8 is a kind of structural schematic diagram of electrical equipment disclosed by the embodiments of the present invention.
Specific embodiment
The embodiment of the invention discloses a kind of temperature control modules, electric vehicle and system applied to battery power supply system, are used for
Improve the safety of battery.It is described in detail separately below.
A kind of temperature control module applied to battery power supply system disclosed in embodiment, electronic for a better understanding of the present invention
Vehicle and system are below first defined the concept or term used in the embodiment of the present invention.
Lithium ion battery (ion cells and batteries) is mobile next between a positive electrode and a negative electrode by lithium ion
Realize the device that chemical energy and electric energy mutually convert.The device includes electrode, diaphragm, electrolyte, shell and terminal etc., and is set
It counts into chargeable.
Thermal runaway (thermal runaway): power battery heat release chain reaction leads to the urgency from temperature rise rate of battery
The phenomenon that drastic change.
A kind of temperature control module applied to battery power supply system disclosed in embodiment, electronic for a better understanding of the present invention
Vehicle and system are below first described the application scenarios of the embodiment of the present invention.In battery charge and discharge process, battery quantity of heat production
Mainly it is made of ohm heat, polarization heat, electric reaction heat and side reaction heat etc..Ohm heat is the ohmic internal resistance R of batteryoNot
Under same charging and discharging currents density I, due to the heat that Joule effect generates, the hot Q of ohmoFormula can be expressed as follows:
Qo=I2Ro
Polarization heat is the heat that is generated due to lithium ion diffusion in the electrodes and movement.Polarization process includes resistance pole
Change, concentration polarization and activation polarization, and polarization heat production can be equivalent to polarization resistance Rp, polarize hot QpFormula can be with
It is expressed as follows:
Qp=I2Rp
Electric reaction heat is since lithium ion is beated back and forth between the positive and negative anodes of different energy levels, produced by interface
Heat release or heat absorption, electric reaction heat QrFormula can be expressed as follows:
Wherein, T is temperature, and Δ S is the Entropy Changes in electrochemical reaction process, and n is the electron transfer number in insertion reaction, F
For Faraday constant.The side reaction heat generated in lithium ion battery discharge process may include positive active material and electrolyte
Reaction heat Qpe, negative electrode active material and electrolyte reaction heat Qne, cathode and binder reaction heat Qnb, solid electrolyte every
Film QSEIAnd the decomposition heat Q of electrolyteeleDeng.Side reaction heat QsFormula can be expressed as follows:
Qs=Qpe+Qne+Qnb+QSEI+Qele
Therefore, the formula for total quantity of heat production Q that lithium ion battery generates in charge and discharge process can be expressed as follows:
Q=Qo+Qp+Qr+Qs
Battery is in charge and discharge process, the heat main source when battery temperature T < 80 DEG C, in battery charge and discharge process
In ohm heat, polarization heat, electric reaction heat.These heats are all related with charging and discharging currents density, and charging and discharging currents density is got over
Big heat is bigger.Therefore, it can be effectively reduced the calorific value of battery by the charging and discharging currents of regulating cell, reduces battery
Temperature prevents thermal runaway.
Referring to Fig. 1, Fig. 1 is a kind of diagrammatic cross-section of temperature control module disclosed by the embodiments of the present invention.As shown in Figure 1,
The temperature control module may include two or more temperature conditioning units, in which:
It is connected in parallel between two or more temperature conditioning units, one end of temperature control module is electrically connected battery, temperature control module
The other end be electrically connected load circuit；
Each temperature conditioning unit in two or more temperature conditioning units has different threshold values, two or more temperature controls
The raising when the temperature of the battery reaches the corresponding threshold value of the temperature conditioning unit of the resistance value of each temperature conditioning unit in unit.
In the present embodiment, temperature control module is applied to the battery power supply system including battery and the temperature control module.Temperature control module
It may include two or more temperature conditioning units, two or more temperature conditioning units can be encapsulated in temperature control module, temperature
Controlling module can also be including encapsulating housing etc..It is connected in parallel with each other between two or more temperature conditioning units, i.e., two or two
One end of each temperature conditioning unit in a above temperature conditioning unit is electrically connected battery, and the other end is electrically connected load circuit.Temperature conditioning unit
The other end be electrically connected load circuit, can be directly electrical connection load circuit, be also possible to indirectly be electrically connected load, for example,
It can be electrically connected load circuit by electric conductor, load circuit can also be electrically connected by electric conductor and other batteries, it can be with
It is electrically connected load circuit by other components, this embodiment is not limited.Load circuit can be vehicle electric circuitry, be also possible to
Other load circuits, this embodiment is not limited.It can be and first one end of two or more temperature conditioning units is all electrically connected
It is connected together and is electrically connected battery again, be also possible to one end of two or more temperature conditioning units being electrically connected battery.Together
Reason, can be that first the other end of two or more temperature conditioning units is all electrically connected and is electrically connected load circuit again,
It is also possible to the other end of two or more temperature conditioning units being electrically connected load circuit.This battery is the temperature control mould
Block needs battery to be protected.The corresponding threshold value of temperature conditioning unit be temperature conditioning unit resistance value by a lesser value mutation be one compared with
Corresponding temperature when big value.
In the present embodiment, each temperature conditioning unit in two or more temperature conditioning units has a different threshold values, i.e., and two
Or the corresponding unique threshold value of each temperature conditioning unit in more than two temperature conditioning units.In two or more temperature conditioning units
Each temperature conditioning unit resistance value raising when the temperature of the battery reaches the corresponding threshold value of the temperature conditioning unit, resistance herein
Raising be that mutability is raised, rather than it is slowly raised.
In the present embodiment, temperature control module be can be set in the inside of battery.One electrode of temperature control module electrical connection battery.
This electrode can be the anode of battery, be also possible to the cathode of battery.This electrode can be the tab of battery, which can
To be arranged in inside battery, another electrode of battery can be drawn out to outside batteries by another tab, so that battery can
Other batteries or load circuit are electrically connected with the tab by outside batteries.
In the present embodiment, temperature control module also be can be set in the outside of battery.Inside battery structure is had no need to change at this time,
Temperature control module is electrically connected an electrode of battery, can be electrically connected this electrode by being drawn out to a tab of outside batteries.
This electrode can be the anode of battery, be also possible to the cathode of battery.
In the present embodiment, two or more temperature conditioning units may include one or more PTC, i.e. the two or two
The above temperature conditioning unit can also partially can be PTC with all PTC.PTC is a kind of thermally sensitive semiconductor resistor, when
When the temperature of PTC is more than certain temperature (i.e. the Curie point of PTC), its resistance value is in that step evolution increases as the temperature rises
It is high.Therefore, the resistance value of PTC is first in the case where the temperature of battery is less than the corresponding threshold value of the PTC (i.e. Curie point)
Resistance value is the second resistance value in the case where the temperature of battery threshold value corresponding greater than the PTC, and the first resistance value is less than the second resistance value.
The resistance value of PTC is the wave that very little amplitude is carried out around the first resistance value in the case where the temperature of battery is less than corresponding threshold value
It is dynamic, since resistance value fluctuating range is smaller, it is therefore contemplated that the resistance value of PTC is less than the feelings of corresponding threshold value in the temperature of battery
It is the first resistance value under condition.Similarly, it is believed that the resistance value of PTC is second in the case where the temperature of battery is greater than corresponding threshold value
Resistance value.First resistance value can value between 50~1000m Ω, the second resistance value can be the value greater than 100 Ω.PTC is corresponding
Threshold value, the i.e. Curie point of PTC, the resistance value for being PTC corresponding temperature when by a lesser value mutation being a larger value.
PTC material therefor can be barium titanate, or high molecular polymer, it can also be quick for other temperature as characterized above
Feel material, this embodiment is not limited.
In the present embodiment, two or more temperature conditioning units may include one or more TS, i.e. the two or two
The above temperature conditioning unit can also partially can be TS with all TS.TS is the temperature change according to working environment, in switch internal
Physical deformation occurs, to generate a series of Automatic Control Components that certain special effects generate conducting or shutdown movement.TS
It is in the conductive state in the case where the temperature of battery threshold value corresponding less than TS, it is greater than the corresponding threshold value of TS in the temperature of battery
In the case where it is in an off state.The corresponding threshold value of TS, i.e. the shutdown temperature of TS are that TS by state is switched to off state
When temperature.TS can be bimetallic TS, be also possible to semiconductor TS, can also be other TS with the above characteristics, this reality
Example is applied to be not construed as limiting.The corresponding threshold value of TS can be respectively less than the corresponding threshold value of PTC.
In the present embodiment, two or more temperature conditioning units can partially be TS, another part PTC.It can also be with one
Part is TS, and another part PTC, remainder is other components with similar functions, and this embodiment is not limited.
In the present embodiment, in order to which the working principle to temperature control module is illustrated, it is assumed that temperature control module includes 3 temperature control lists
Member, there are two PTC and TS in 3 temperature conditioning units.Two PTC can be respectively PTC_1 and PTC_2.The temperature of battery
By the member conducts that are electrically connected with temperature control module to TS, PTC_1 and PTC_2.The resistance value of TS can be between 0~100m Ω
Arbitrary value；The Curie point of PTC_1 resistance value below can arbitrary value between 50~500m Ω, it is more than Curie point
Resistance value be greater than 100 Ω；The Curie point of PTC_2 resistance value below can arbitrary value between 100~1000m Ω, occupy
In more than temperature spot resistance value be greater than 100 Ω.The shutdown temperature of TS can be the arbitrary value between 30~60 DEG C, the residence of PTC_1
In temperature spot can be the arbitrary value between 40~80 DEG C, the Curie point of PTC_2 can be any between 60~100 DEG C
Value.Assuming that the shutdown temperature of TS is 55 DEG C, the Curie point of PTC_1 is 65 DEG C and the Curie point of PTC_2 is 80 DEG C.
When battery-heating, the temperature of battery is increased, in the case where being conducted to the temperature of TS, PTC_1 and PTC_2 less than 55 DEG C, electricity
The electric current in circuit where pond is by tri- parallel resistances of TS, PTC_1 and PTC_2, and the impedance in circuit is minimum where battery, and battery is just
It is often used.It is greater than 55 DEG C in the temperature for being conducted to TS, PTC_1 and PTC_2 and in the case where less than 65 DEG C, temperature is greater than the pass of TS
Disconnected temperature, TS shutdown, electric current is by two parallel resistances of PTC_1 and PTC_2, and the impedance in circuit is small relative to temperature where battery
In 55 DEG C of Shi Yaogao, therefore, the current reduction in circuit where battery, battery heat production power reduces.Be conducted to TS, PTC_1 and
The temperature of PTC_2 be greater than 65 DEG C and less than 80 DEG C in the case where, temperature is greater than the Curie point of PTC_1, and the resistance of PTC_1 is fast
Speed increases, and TS shutdown, electric current is by two parallel resistances of PTC_1 and PTC_2 resistance, and the impedance in circuit is relative to big where battery
In 55 DEG C and less than 65 DEG C Shi Yaogao, so that the electric current in circuit further decreases where battery, battery heat production power further under
Drop.At this point, the resistance due to PTC_1 increases, the electric current for flowing through temperature control module flows mainly through PTC_2, flows through in PTC_1
Electric current it is smaller.In the case where the temperature for being conducted to TS, PTC_1 and PTC_2 is greater than 80 DEG C, temperature is greater than the Curie of PTC_2
The resistance of temperature spot, PTC_2 increases rapidly, TS shutdown, and electric current is returned by two parallel resistances of PTC_1 and PTC_2, battery place
The impedance highest on road, so that the electric current in circuit further decreases where battery, battery heat production power further declines.At this point, by
It is turned off in TS, and the resistance of PTC_1 and PTC_2 increases, therefore, the electric current in circuit where flowing through battery reaches minimum value, only
The heat production power for wanting the resistive arrangement of PTC_1 and PTC_2 that the heat radiation power of battery is rationally made to be greater than battery, it is ensured that battery
Temperature will not continue to increase, and thereby may be ensured that battery work in suitable temperature range, to improve the safety of battery.
Referring to Fig. 2, Fig. 2 is a kind of diagrammatic cross-section of battery power supply system disclosed by the embodiments of the present invention.Such as Fig. 2 institute
Show, which may include battery 21 and temperature control module 22, in which:
Battery 21 may include the first tab 211 and the second tab 212, temperature control module 22 may include two or two with
Upper temperature conditioning unit is connected in parallel between two or more temperature conditioning units, and the outside of battery 21 is arranged in temperature control module 22, temperature
The one end for controlling module 22 is electrically connected the first tab 211, and the other end of temperature control module 22 is electrically connected load circuit.
Wherein, the detailed description of the temperature control module in Fig. 2, that is, temperature control module shown in FIG. 1, temperature control module can refer to Fig. 1
Corresponding description, in this not go into detail.
In the present embodiment, the first tab 211 and the second tab 212 are used to two electrodes of battery drawing outside batteries.
First tab 211 can be positive pole ear, and accordingly, the second tab 212 is negative lug.First tab 211 may be negative
Pole tab, accordingly, the second tab 212 are positive pole ear.Electricity between temperature control module 21 and the first tab 211 and load circuit
Connection can be connected by pad, and pad material therefor can be the conductive metals such as nickel, copper, aluminium.In addition, Fig. 2 is only illustrated
One end of two or more temperature conditioning units is electrically connected battery 21, the other end of two or more temperature conditioning units
The case where being directly electrically connected load circuit respectively.Second tab 212 can be electrically connected other batteries, can also be electrically connected the load
Circuit can also be electrically connected other load circuits, and this embodiment is not limited.The detailed description of load circuit can refer to Fig. 1
Corresponding description, in this not go into detail.
In the present embodiment, battery can also include battery case, the core being placed in inside battery case and be filled in battery
The intracorporal electrolyte of shell, core may include positive grade piece, cathode grade piece and be arranged at intervals at positive grade piece and cathode grade piece
Between diaphragm, positive pole ear is electrically connected positive grade piece, and negative lug is electrically connected cathode grade piece.Battery case material therefor can be with
For aluminum plastic film, or steel can also be aluminium, can also be other materials, this embodiment is not limited.Electrolyte can wrap
Solvent, solute and additive are included, solvent can be organic solvent, or other solvents, this embodiment is not limited.It is organic
Solvent can be ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate etc..Solute can be
Lithium hexafluoro phosphate, LiBF4, hexafluoroarsenate lithium etc..Positive pole ear material therefor can be aluminium, negative lug material therefor
It can be copper, nickel, copper nickel plating etc..
Referring to Fig. 3, Fig. 3 is the diagrammatic cross-section of another battery power supply system disclosed by the embodiments of the present invention.Such as Fig. 3
Shown, which includes battery 31 and temperature control module 32, in which:
Battery 31 includes positive pole ear 311 and negative lug 312, temperature control module 32 include 3 temperature conditioning units (i.e. TS,
PTC_1 and PTC_2), it is connected in parallel between 3 temperature conditioning units, the outside of battery 31, temperature control module 32 is arranged in temperature control module 32
One end be electrically connected positive pole ear 311, the other end of temperature control module 32 is electrically connected load circuit.
Wherein, battery power supply system shown in Fig. 3 is a kind of concrete condition of battery power supply system shown in Fig. 2, in detail
Description please refers to the corresponding description of Fig. 2, and in this not go into detail.
Referring to Fig. 4, Fig. 4 is the diagrammatic cross-section of another battery power supply system disclosed by the embodiments of the present invention.Such as Fig. 4
Shown, which includes battery 41, temperature control module 42 and electric conductor 43, in which:
Battery 41 may include the first tab 411 and the second tab 412, temperature control module 42 may include two or two with
Upper temperature conditioning unit is connected in parallel between two or more temperature conditioning units, and the inside of battery 41 is arranged in temperature control module 42, temperature
The one end for controlling module 42 is electrically connected the first tab 411, and the other end of temperature control module 42 is electrically connected electric conductor 43.
Wherein, the detailed description of the temperature control module in temperature control module, that is, Fig. 1 in Fig. 4, temperature control module can refer to Fig. 1 pairs
The description answered, in this not go into detail.
In the present embodiment, the first tab 411 is arranged inside battery 41, for drawing an electrode of battery 41.Second
Tab 412 is used to another electrode of battery drawing outside batteries.Temperature control module 41 and the first tab 411 and electric conductor 43 it
Between electrical connection can be connected by pad, pad material therefor can be the conductive metals such as nickel, copper, aluminium.In addition, Fig. 4
The one end for illustrating two or more temperature conditioning units is electrically connected battery 41, two or more temperature conditioning units
The other end is directly electrically connected the case where electric conductor 43 respectively.The other end of electric conductor 43 is electrically connected load circuit.Other contents with
Battery power supply system shown in Fig. 2 is identical, and detailed description please refers to the corresponding description of Fig. 2, and in this not go into detail.Fig. 4 institute
Since temperature control module is arranged in inside battery in the battery power supply system shown, therefore, it is necessary to temperature control module is first passed through electric conductor
Drawing outside batteries could be electrically connected later with load circuit.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of another battery power supply system disclosed by the embodiments of the present invention.Such as Fig. 5
Shown, which includes battery 51, temperature control module 52 and electric conductor 53, in which:
Battery 51 includes positive pole ear 511 and negative lug 512, temperature control module 52 include 3 temperature conditioning units (i.e. TS,
PTC_1 and PTC_2), it is connected in parallel between 3 temperature conditioning units, the inside of battery 51, temperature control module 52 is arranged in temperature control module 52
One end be electrically connected positive pole ear 511, the other end of temperature control module 52 is electrically connected electric conductor 53.
Wherein, battery power supply system shown in fig. 5 is a kind of concrete condition of battery power supply system shown in Fig. 4, in detail
Description please refers to the corresponding description of Fig. 4, and in this not go into detail.
Referring to Fig. 6, Fig. 6 is a kind of structural schematic diagram of electric vehicle disclosed by the embodiments of the present invention.As shown in fig. 6, should
Electric vehicle may include load circuit 61 and battery power supply system 62.The detailed description of battery power supply system 62 can refer to Fig. 2
Or the corresponding description of battery power supply system shown in Fig. 4, in this not go into detail.Battery power supply system 62 is used to be load circuit
61 power supplies.
Referring to Fig. 7, Fig. 7 is a kind of structural schematic diagram of terminal device disclosed by the embodiments of the present invention.As shown in fig. 7,
The terminal device may include load circuit 71 and battery power supply system 72.The detailed description of battery power supply system 72 can refer to
The corresponding description of battery power supply system shown in Fig. 2 or Fig. 4, in this not go into detail.Battery power supply system 72 is used for as load
Circuit 71 is powered.
Referring to Fig. 8, Fig. 8 is a kind of structural schematic diagram of electrical equipment disclosed by the embodiments of the present invention.As shown in figure 8,
The electrical equipment may include load circuit 81 and battery power supply system 82.The detailed description of battery power supply system 82 can refer to
The corresponding description of battery power supply system shown in Fig. 2 or Fig. 4, in this not go into detail.Battery power supply system 82 is used for as load
Circuit 81 is powered.Electrical equipment can be lighting apparatus, or field of kitchen electric appliance equipment can also be household appliance, may be used also
Think other electrical equipments, this embodiment is not limited.
The load circuit of the other end electrical connection of temperature control module, is retouched in detail in load circuit, that is, Fig. 1-Fig. 5 in Fig. 6-Fig. 8
Stating can be with reference to the corresponding description of Fig. 1-Fig. 5, and in this not go into detail.
Above-described specific embodiment is carried out to the purpose of the present invention, technical scheme and beneficial effects into one
Step is described in detail, it should be understood that being not used to limit this hair the foregoing is merely a specific embodiment of the invention
Bright protection scope, all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done,
It should include within protection scope of the present invention.
Claims (10)
1. a kind of temperature control module applied to battery power supply system, which is characterized in that the battery power supply system include battery and
The temperature control module, in which:
The temperature control module includes two or more temperature conditioning units, is connected in parallel between the temperature conditioning unit, the temperature control
One end of module is electrically connected the battery, and the other end is electrically connected load circuit；
Each temperature conditioning unit in described two or more than two temperature conditioning units has different threshold values, the resistance value of the temperature conditioning unit
The raising when the temperature of the battery reaches the corresponding threshold value.
2. temperature control module according to claim 1, which is characterized in that described two or more than two temperature conditioning units include one
A or multiple positive temperature coefficient resistors, the resistance value of the positive temperature coefficient resistor are less than corresponding described in the temperature of the battery
It is the first resistance value when threshold value, is the second resistance value, first resistance value when the temperature of the battery is greater than the corresponding threshold value
Less than second resistance value.
3. temperature control module according to claim 1 or 2, which is characterized in that described two or more than two temperature conditioning unit packets
Include one or more temperature detect switch (TDS)s, the temperature detect switch (TDS) in the case where the temperature of the battery is less than the corresponding threshold value at
It is in an off state in the case where the temperature of the battery is greater than the corresponding threshold value on state.
4. temperature control module according to claim 1-3, which is characterized in that the temperature control module is arranged in the electricity
Inside pond.
5. temperature control module according to claim 1-3, which is characterized in that the temperature control module is arranged in the electricity
Outside pond.
6. temperature control module according to claim 1-5, which is characterized in that one end of the temperature control module is electrically connected
The battery includes:
One end of the temperature control module is directly connected to the battery.
7. a kind of battery power supply system, which is characterized in that including battery and temperature control mould as claimed in any one of claims 1 to 6
Block.
8. a kind of electric vehicle, which is characterized in that including load circuit and battery power supply system as claimed in claim 7.
9. a kind of terminal device, which is characterized in that including load circuit and battery power supply system as claimed in claim 7.
10. a kind of electrical equipment, which is characterized in that including load circuit and battery power supply system as claimed in claim 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132990.7A CN109910682A (en) | 2019-02-22 | 2019-02-22 | A kind of temperature control module, electric vehicle and system applied to battery power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910132990.7A CN109910682A (en) | 2019-02-22 | 2019-02-22 | A kind of temperature control module, electric vehicle and system applied to battery power supply system |
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| CN109910682A true CN109910682A (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910132990.7A Pending CN109910682A (en) | 2019-02-22 | 2019-02-22 | A kind of temperature control module, electric vehicle and system applied to battery power supply system |
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Cited By (1)
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| WO2022033348A1 (en) * | 2020-08-10 | 2022-02-17 | 中兴通讯股份有限公司 | Vehicle thermal runaway processing method and apparatus, vehicle, and computer readable storage medium |
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| CN101689619B (en) * | 2007-06-27 | 2016-01-20 | 罗伯特.博世有限公司 | There is the device of at least one battery |
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Effective date of registration: 20211108 Address after: 518043 No. 01, 39th floor, building a, antuoshan headquarters building, No. 33, antuoshan Sixth Road, Xiang'an community, Xiangmihu street, Futian District, Shenzhen, Guangdong Province Applicant after: Huawei Digital Energy Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Applicant before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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Application publication date: 20190621 |