CN208385574U - The battery group realization device that low temperature charges - Google Patents
The battery group realization device that low temperature charges Download PDFInfo
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- CN208385574U CN208385574U CN201820731763.7U CN201820731763U CN208385574U CN 208385574 U CN208385574 U CN 208385574U CN 201820731763 U CN201820731763 U CN 201820731763U CN 208385574 U CN208385574 U CN 208385574U
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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
- 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
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Abstract
The utility model relates to the realization devices for the battery group that one kind can charge at low ambient temperatures, including being set to the temperature sensor of battery core anode, the heating film being wrapped on the outside of battery core, temperature control automatic switching module, external charging equipment；External charging equipment is connected to battery core positive and negative electrode through temperature control automatic switching module and forms charge tunnel, and external charging equipment is connected to heating film through temperature control automatic switching module and forms heating channel；Temperature control automatic switching module, which connect with temperature sensor and measures temperature according to temperature sensor, is selectively turned on charge tunnel, heating channel.The utility model can accurately know battery pack battery core temperature by temperature sensor, and carry out quick heat temperature raising, under battery pack not damage situations, it is ensured that charge rate and charging capacity.Charging problems under the utility model effective solution low temperature environment of battery pack, when preventing because of charging temperature it is too low be not fully filled electricity and to battery caused by physical injury.
Description
Technical field
The utility model relates to a kind of realization devices of charging accumulator group, and in particular to one kind can be at low ambient temperatures
The realization device for the battery group that (subzero) charges.
Background technique
For working at low ambient temperatures for a long time, and battery-powered electronic equipment is relied on, certainly exists charging
Demand.But under conditions present, most battery group charges in the environment of being lower than zero degree, and not only process is slowly not fully filled electricity, also
Irreversible physical damnification can be caused to battery, significantly reduce the service life of battery pack；Existing percentage of batteries group heating
Case is used to solve the problems, such as that low temperature cannot charge, but heating speed is slower, and can not actual response battery pack battery core temperature, add
Hot temperature is too low still to be damaged battery, and heating temperature is excessively high, and to will lead to process slow.
Summary of the invention
In view of the above-mentioned problems, the utility model provides one kind under battery pack not damage situations, it is ensured that charge rate and fill
The battery group realization device that the low temperature of capacitance charges.
To solve the above problems, the technical solution that the utility model is taken are as follows: the battery group that low temperature charges is realized
Device, including be set to the temperature sensor of battery core anode, the heating film being wrapped on the outside of battery core, temperature control automatic switching module,
External charging equipment；External charging equipment is connected to battery core positive and negative electrode through temperature control automatic switching module and forms charge tunnel, external
Charging equipment is connected to heating film through temperature control automatic switching module and forms heating channel；Temperature control automatic switching module and temperature sensing
Device, which connects and measures temperature according to temperature sensor, is selectively turned on charge tunnel, heating channel.
Temperature sensor is set near internal battery pack battery core anode, for monitoring internal battery pack temperature T；Battery core is just
Pole most can reflect the true temperature of battery core.By heating film by canoe, it is tightly wrapped the metal on the outside of single battery
On shell, to guarantee the heating that is rapidly heated；Temperature control automatic switching module passes through the temperature T for reading temperature sensor, to judge automatically
Whether need to start heating.When connecting external power supply, when charging to battery pack, temperature control automatic switching module reads temperature T
External power supply is switched to heating channel first when temperature T value is lower than temperature T1 by value, so that heating film is started to work and is heated up, when
When T value reaches certain temperature T1, external power supply is switched to charge tunnel, charged to battery pack by cutting heating channel；Work as T
When value is again below certain temperature T1, the above circulation is repeated, is ensured always when charging to battery pack, battery core temperature is in safe charging
It is more than temperature.
Temperature control automatic switching module includes temperature control signals generation circuit and charge and discharge signal generating circuit, temperature control
Signal generating circuit are as follows:+5V voltage is connected to the inverting input terminal of 1-1 comparator, the reverse phase of 1-1 comparator through first resistor
Input terminal is grounded through 3rd resistor, and+5V voltage is connected to the non-inverting input terminal of 1-1 comparator, 1-1 comparator through second resistance
Non-inverting input terminal be grounded through temperature sensor, the output end of 1-1 comparator generates temperature control signals；
That the non-inverting input terminal of 1-1 comparator inputs is the temperature T of temperature sensor detection herein, and inverting input terminal is defeated
The standard value temperature T1 for entering setting heats channel circuit and starts to work when detecting temperature T < T1；Conversely, charge tunnel works,
Heating channel and charge tunnel automatically switch at temperature spot T1.
Charge and discharge signal generating circuit are as follows: battery electrode is connected to the non-inverting input terminal of 5-1 comparator, 5-2 compares
The inverting input terminal of device, battery electrode is through the 21st resistance, the 26th resistor coupled in parallel branch, the 20th resistance, second
14 resistor coupled in parallel groundings, the inverting input terminal of 5-1 comparator, the non-inverting input terminal of 5-2 comparator ground connection, 5-
The output end of 1 comparator generates discharge signal, the output end of 5-2 comparator generates charging signals；
When the electric discharge of battery pack external load, discharge current flows to ground by battery electrode, at this time battery electrode current potential
Greater than the current potential on ground, two electric potential signals are sent into 5-1 comparator and are compared generation high level discharge signal；When outside battery pack
When connecing charger, charging current flows to battery electrode by ground, and battery electrode current potential is less than ground potential, same two electricity at this time
Position signal is sent into 5-2 comparator and is compared generation high level charging signals.
Temperature control signals and charging signals access the 6th AND gate circuit input terminal, and the 6th AND gate circuit output end is through the tenth
One resistance is connected to the base stage of the second triode, the emitter ground connection of the second triode, and the collector of the second triode connects field-effect
The collector of the grid of pipe, third transistor, the heated film of the drain electrode of field-effect tube connect 1-2 comparator non-inverting input terminal, and
1-2 comparator non-inverting input terminal connects battery electrode, 1-2 comparator reverse phase through the parallel branch of the 5th resistance, the 6th resistance
Input terminal, 1-2 comparator output terminal generate heating signal；The source electrode of field-effect tube connects battery through switch, the 8th resistance respectively
The collector of group anode, third transistor, the emitter ground connection of third transistor；
After charger accesses battery pack, powered on moment, charger can have a charging current to battery pack, charge at this time
Signal is high level, if battery pack is in low temperature environment, temperature control signals are similarly high level, by the 6th and door electricity
The switching circuit being made of eleventh resistor, the second triode, the 8th resistance is opened in output high level signal control in road, is opened simultaneously
Logical field-effect tube, heating film, the 5th resistance, the 6th resistance heating channel have heated current to pass through, 1-2 comparator by the 5th,
6th sample resistance both end voltage signal is compared generation heating signal.
Discharge signal, heating signal access NOR gate circuit input terminal, and NOR gate circuit output end, temperature control signals connect
Entering 3-1 AND gate circuit input terminal, output end, the heating signal of 3-1 AND gate circuit access 3-2 AND gate circuit input terminal,
3-2 AND gate circuit output end generates channel switching signal and is connected to the base stage of third transistor through twelfth resistor.
After charger accesses battery pack and battery pack is under low temperature environment, powered on moment, can generate a heating letter
Number, at this point, discharge signal is low level, the two level are sent into the high level signal that XOR circuit generates and are believed with temperature control
Number be sent into 3-1 AND gate circuit generate high level signal again with heating signal (being at this time high level) carry out mutually and generate channel
Switching signal.
After charger accesses battery pack, start to power on to charger at low ambient temperatures, in powered on moment, front and back can be produced
A raw charging signals and heating signal, after detecting heating signal, through XOR circuit, AND gate circuit generate heating channel with
The channel switching signal of charge tunnel, when channel switching signal is high level, heating channel is opened；Conversely, heating channel is closed
It closes.After heating channel unlatching, start to heat for battery pack, when being heated to temperature T greater than T1, temperature control signals become low
Level closes heating channel and stops heating by generating temperature control signals low level signal with door；When temperature T again below
When T1, it is again turned on the heating of heating channel.
Protection circuit is provided in the charge tunnel, protection circuit protects IC using S-8204A series battery.
Protection circuit refers to is provided with protection chip in charge tunnel, protects IC using S-8204A series battery herein,
It prevents external charging equipment from causing to overcharge charging to battery pack, prevents from causing over-discharge to discharge when battery discharge, prevent short circuit, filling
When electric discharge port short circuit, the channel for cutting off battery pack and port reaches protective effect；It is set between heating channel and charge and discharge port
It is equipped with temperature detect switch (TDS), is prevented when heating out of control, cutting heating channel is played the role of.
The heating film is the high graphene heating film of thermal conversion efficiency.Graphene heating film is passed through into winding side
Formula is closely attached on single battery outer metal shell, can accelerate the rate of heat transfer, guarantees the heating that is rapidly heated.
Preferably, the battery core is circle, and heating film is S-shaped to be wrapped on the outside of battery core.
Preferably, the battery core is sheet, and heating film is wrapped on the outside of battery core in back-shaped.
The utility model can accurately know battery pack battery core temperature by temperature sensor, and carry out quickly heating and rise
Temperature can be solved the problems, such as effectively to battery charging under low temperature environment, under battery pack not damage situations, it is ensured that charging speed
Rate and charging capacity.Charging problems under the utility model effective solution low temperature environment of battery pack prevent temperature when because of charging
It spends and low be not fully filled electricity and physical injury is caused to battery.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model；
Fig. 2 is temperature control automatic switching module circuit diagram；
Fig. 3 is that round battery core low temperature charging accumulator group S-shaped wraps up schematic diagram；
Fig. 4 is the back-shaped package schematic diagram of sheet battery core low temperature charging accumulator group；
Specific embodiment
The battery group realization device that low temperature charges, as shown in Figure 1, including the temperature sensing for being set to battery core anode
Device, the graphene heating film being wrapped on the outside of battery core, temperature control automatic switching module, external charging equipment；External charging equipment warp
Temperature control automatic switching module is connected to battery core positive and negative electrode and forms charge tunnel, and external charging equipment is through temperature control automatic switching module
It is connected to graphene heating film and forms heating channel；Temperature control automatic switching module connect with temperature sensor and according to temperature sensing
Device measures temperature and is selectively turned on charge tunnel, heating channel.It is provided with protection circuit in the charge tunnel, protects circuit
IC is protected using S-8204A series battery.
As shown in Fig. 2, temperature control automatic switching module includes that temperature control signals generation circuit and charge and discharge electric signal generate electricity
Road, temperature control signals generation circuit are as follows:+5V voltage is connected to the inverting input terminal of 1-1 comparator U1-1 through first resistor R1,
The inverting input terminal of 1-1 comparator U1-1 is grounded GND through 3rd resistor R3, and+5V voltage is connected to 1-1 ratio through second resistance R2
Compared with the non-inverting input terminal of device U1-1, the non-inverting input terminal of 1-1 comparator U1-1 is grounded GND, 1-1 through temperature sensor Rt1
The output end of comparator U1-1 generates temperature control signals Tem；
Charge and discharge signal generating circuit are as follows: battery electrode Port- be connected to 5-1 comparator U5-1 non-inverting input terminal,
The inverting input terminal of 5-2 comparator U5-2, battery electrode Port- is through the 21st resistance R21, the 26th resistance R26
Parallel branch, the 20th resistance R20, the 24th resistance R24 parallel branch are grounded GND, and the reverse phase of 5-1 comparator U5-1 is defeated
Enter end, the non-inverting input terminal of 5-2 comparator U5-2 is grounded GND, the output end generation discharge signal of 5-1 comparator U5-1
The output end generation charging signals COP of DOP, 5-2 comparator U5-2；
Temperature control signals Tem and charging signals COP accesses the 6th AND gate circuit U6 input terminal, and the 6th AND gate circuit U6 is defeated
Outlet is connected to the base stage of the second triode Q2 through eleventh resistor R11, and the emitter of the second triode Q2 is grounded GND, and the two or three
The collector of pole pipe Q2 connects the collector of the grid of field-effect tube Q1, third transistor Q3, and the drain electrode of field-effect tube Q1 is heated
Film R4 connects 1-2 comparator U1-2 non-inverting input terminal, and 1-2 comparator U1-2 non-inverting input terminal is through the 5th resistance R5, the 6th electricity
The parallel branch of resistance R6 connects battery electrode Port-, 1-2 comparator U1-2 inverting input terminal, 1-2 comparator U1-2 output
End generates heating signal Heat；The source electrode of field-effect tube Q1 respectively through switch S1, the 8th resistance R8 connect battery anode Port+,
The emitter of the collector of third transistor Q3, third transistor Q3 is grounded GND；
Discharge signal DOP, heating signal Heat access NOR gate circuit U2 input terminal, NOR gate circuit U2 output end, temperature
Degree control signal Tem accesses 3-1 AND gate circuit U3-1 input terminal, output end, the heating signal of 3-1 AND gate circuit U3-1
Heat accesses 3-2 AND gate circuit U3-2 input terminal, and 3-2 AND gate circuit U3-2 output end generates channel switching signal CTL simultaneously
The base stage of third transistor Q3 is connected to through twelfth resistor R12.
As shown in figure 3, the battery core is circle, heating film is S-shaped to be wrapped on the outside of battery core.
As shown in figure 4, the battery core is sheet, heating film is wrapped on the outside of battery core in back-shaped.
Claims (6)
1. the battery group realization device that low temperature charges, it is characterised in that: the temperature sensing including being set to battery core anode
Device, the heating film being wrapped on the outside of battery core, temperature control automatic switching module, external charging equipment；External charging equipment through temperature control from
Dynamic switching module is connected to battery core positive and negative electrode and forms charge tunnel, and external charging equipment is connected to through temperature control automatic switching module
Heating film forms heating channel；Temperature control automatic switching module connect with temperature sensor and measures temperature choosing according to temperature sensor
Selecting property connects charge tunnel, heating channel.
2. the battery group realization device that low temperature according to claim 1 charges, which is characterized in that temperature control is cut automatically
Changing the mold block includes temperature control signals generation circuit and charge and discharge signal generating circuit, temperature control signals generation circuit are as follows:+5V
Voltage is connected to the inverting input terminal of 1-1 comparator (U1-1) through first resistor (R1), and the reverse phase of 1-1 comparator (U1-1) is defeated
Enter end and be grounded (GND) through 3rd resistor (R3) ,+5V voltage is connected to the same phase of 1-1 comparator (U1-1) through second resistance (R2)
The non-inverting input terminal of input terminal, 1-1 comparator (U1-1) is grounded (GND) through temperature sensor (Rt1), 1-1 comparator
(U1-1) output end generates temperature control signals (Tem)；
Charge and discharge signal generating circuit are as follows: battery electrode (Port-) be connected to 5-1 comparator (U5-1) non-inverting input terminal,
The inverting input terminal of 5-2 comparator (U5-2), battery electrode (Port-) is through the 21st resistance (R21), the 26th electricity
(R26) parallel branch, the 20th resistance (R20), the 24th resistance (R24) parallel branch ground connection (GND) are hindered, 5-1 compares
The inverting input terminal of device (U5-1), the non-inverting input terminal of 5-2 comparator (U5-2) ground connection (GND), 5-1 comparator (U5-1)
Output end generate discharge signal (DOP), 5-2 comparator (U5-2) output end generate charging signals (COP)；Temperature control
Signal (Tem) and charging signals (COP) access the 6th AND gate circuit (U6) input terminal, and the 6th AND gate circuit (U6) output end is through the
11 resistance (R11) are connected to the base stage of the second triode (Q2), and the emitter of the second triode (Q2) is grounded (GND), and the two or three
The collector of pole pipe (Q2) connects the collector of the grid of field-effect tube (Q1), third transistor (Q3), the leakage of field-effect tube (Q1)
Extremely heated film (R4) connects 1-2 comparator (U1-2) non-inverting input terminal, and 1-2 comparator (U1-2) non-inverting input terminal is through the 5th
Resistance (R5), the 6th resistance (R6) parallel branch connect battery electrode (Port-), 1-2 comparator (U1-2) anti-phase input
End, 1-2 comparator (U1-2) output end generate heating signal (Heat)；The source electrode of field-effect tube (Q1) is respectively through switching
(S1), the 8th resistance (R8) connects the collector of battery anode (Port+), third transistor (Q3), third transistor (Q3)
Emitter is grounded (GND)；
Discharge signal (DOP), heating signal (Heat) access NOR gate circuit (U2) input terminal, NOR gate circuit (U2) output
End, temperature control signals (Tem) access 3-1 AND gate circuit (U3-1) input terminal, the output of 3-1 AND gate circuit (U3-1)
3-2 AND gate circuit (U3-2) input terminal is accessed at end, heating signal (Heat), and 3-2 AND gate circuit (U3-2) output end generates
Channel switching signal (CTL) and the base stage that third transistor (Q3) is connected to through twelfth resistor (R12).
3. the battery group realization device that low temperature according to claim 1 charges, which is characterized in that the charging
Protection circuit is provided in channel, protection circuit protects IC using S-8204A series battery.
4. the battery group realization device that low temperature according to claim 1 charges, which is characterized in that the heating
Film is graphene heating film.
5. the battery group realization device that low temperature according to claim 4 charges, which is characterized in that the battery core is
Circle, heating film is S-shaped to be wrapped on the outside of battery core.
6. the battery group realization device that low temperature according to claim 4 charges, which is characterized in that the battery core is
Sheet, heating film are wrapped on the outside of battery core in back-shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820731763.7U CN208385574U (en) | 2018-05-16 | 2018-05-16 | The battery group realization device that low temperature charges |
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| CN201820731763.7U CN208385574U (en) | 2018-05-16 | 2018-05-16 | The battery group realization device that low temperature charges |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448189A (en) * | 2018-05-16 | 2018-08-24 | 济南保特电子设备有限公司 | The accumulator group realization device that low temperature charges |
| CN110265738A (en) * | 2019-06-28 | 2019-09-20 | 山东精工电子科技有限公司 | Lithium battery group control system and lithium battery and control method |
-
2018
- 2018-05-16 CN CN201820731763.7U patent/CN208385574U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448189A (en) * | 2018-05-16 | 2018-08-24 | 济南保特电子设备有限公司 | The accumulator group realization device that low temperature charges |
| CN108448189B (en) * | 2018-05-16 | 2024-01-30 | 济南保特电子设备有限公司 | Storage battery pack realizing device for low-temperature charging |
| CN110265738A (en) * | 2019-06-28 | 2019-09-20 | 山东精工电子科技有限公司 | Lithium battery group control system and lithium battery and control method |
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