CN209766606U - Novel heat preservation battery - Google Patents
Novel heat preservation battery Download PDFInfo
- Publication number
- CN209766606U CN209766606U CN201920873774.3U CN201920873774U CN209766606U CN 209766606 U CN209766606 U CN 209766606U CN 201920873774 U CN201920873774 U CN 201920873774U CN 209766606 U CN209766606 U CN 209766606U
- Authority
- CN
- China
- Prior art keywords
- circuit
- battery pack
- charging
- battery
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
the utility model discloses a novel heat preservation battery, which comprises a protective shell, wherein a heat preservation layer is arranged in the protective shell, a circuit board, a battery pack and an internal temperature sensor are arranged in the heat preservation layer, a heat conduction layer is arranged at the periphery of the battery pack, and the battery pack is communicated with a heating sheet through the heat conduction layer and is connected with an external solar cell panel; the heating sheet is also communicated with a heat storage layer; an external temperature sensor is arranged on the solar cell panel; the circuit board is provided with a main control circuit, a solar constant-power charging circuit, a charging forbidding control circuit, a voltage measuring circuit, a heating sheet control circuit, an external temperature sensor access circuit, an internal temperature measuring circuit, a voltage stabilizing circuit, a state indicating circuit, a charging and discharging protection circuit, a power supply output circuit and a solar charging indicating circuit. The heat preservation battery has an active heating function, can actively adjust the temperature of the battery pack according to the external temperature, and ensures that the battery is at the optimal use temperature for a long time.
Description
Technical Field
The utility model relates to a battery especially relates to a novel heat preservation battery.
Background
Nowadays, the application range of solar cells is wider and wider, so that more and more cells are used for storing electric energy for the solar cells. Among the many types of batteries used to store electrical energy, lithium batteries are most widely used. However, in northern China, the temperature is usually lower than 0 ℃ in winter, and the damage rate of the outdoor lithium battery is high, and the damage is mainly caused by low-temperature charging of the lithium battery. Generally, lithium batteries can be recovered after normal-temperature charging and discharging, and are reversible in capacity loss; however, the low-temperature charging can reduce the capacitance and even cause lithium precipitation, which is a permanent capacity loss and leads to the rejection of the lithium battery. The method specifically comprises the following steps: when the lithium battery is charged at low temperature, lithium ions may not be embedded into the graphite negative electrode in time, so that metal lithium dendrites are precipitated and formed on the surface of the negative electrode, the reaction can consume the lithium ions which can be repeatedly charged and discharged in the battery, the capacity of the battery is greatly reduced, the precipitated metal lithium dendrites can pierce through the diaphragm, the use safety performance of the lithium battery is affected, and numerous potential safety hazards exist in the use of the lithium battery.
At present, aiming at the use defects of the lithium battery in the low-temperature environment, a layer of heat preservation layer is added outside the battery pack of the lithium battery to realize passive heat preservation to overcome the defects. However, in northern winter, the low-temperature environment is kept for a long time, even if an insulating layer is additionally arranged outside the battery pack, the heat of the battery pack can be dissipated into the air, the temperature of the battery pack is slightly higher than that of the outside air at most, but the lithium battery cannot be always in the optimal temperature state, and the normal use of the lithium battery is influenced.
SUMMERY OF THE UTILITY MODEL
in order to solve the defects of the prior art, the utility model provides a novel heat preservation battery.
In order to solve the technical problem, the utility model discloses a technical scheme is: a novel heat preservation battery comprises a protective shell, wherein a heat preservation layer is arranged in the protective shell, a circuit board, a battery pack and an internal temperature sensor are arranged in the heat preservation layer, the circuit board is positioned above the battery pack, a heat conduction layer is arranged on the periphery of the battery pack, the battery pack is communicated with a heating sheet through the heat conduction layer and is connected with an external solar cell panel, and the internal temperature sensor is fixed on the circuit board; the heating sheet is also communicated with a heat storage layer, the heat storage layer and the heating sheet are both positioned in the heat insulation layer, and the heating sheet is positioned between the heat storage layer and the heat conduction layer; an external temperature sensor is arranged on the solar cell panel;
The circuit board is provided with a main control circuit, a solar constant-power charging circuit, a charging forbidding control circuit, a voltage measuring circuit, a heating sheet control circuit, an external temperature sensor access circuit, an internal temperature measuring circuit, a voltage stabilizing circuit, a state indicating circuit, a charging and discharging protection circuit, a power supply output circuit and a solar charging indicating circuit;
The solar cell panel is electrically connected with the input ends of the solar constant-power charging circuit, the solar charging indicating circuit and the heating sheet control circuit; the output end of the solar constant-power charging circuit is electrically connected with the input end of the battery pack circuit; the input end of the solar constant-power charging circuit is also electrically connected with a charging forbidding control circuit;
The battery pack circuit in the battery pack is electrically connected with the main control circuit and the charge-discharge protection circuit, the charge-discharge protection circuit is electrically connected with the voltage stabilizing circuit, the voltage measuring circuit and the power output circuit respectively, and the power output circuit is externally connected with electric equipment;
The heating plate is electrically connected with the output end of the heating plate control circuit, and the internal temperature sensor is electrically connected with the input end of the internal temperature measuring circuit;
The output ends of the internal temperature measuring circuit, the voltage measuring circuit and the solar charging indicating circuit are respectively electrically connected with the input end of the main control circuit, the input end of the main control circuit is also electrically connected with the output end of the external temperature sensor access circuit, and the input end of the external temperature sensor access circuit is electrically connected with the external temperature sensor circuit in the external temperature sensor; the output end of the main control circuit is respectively and electrically connected with the input ends of the heating sheet control circuit, the state indicating circuit and the charging forbidding control circuit.
further, the battery pack adopts a lithium battery.
Furthermore, the heat-insulating layer is made of flame-retardant materials.
The utility model discloses a novel heat preservation battery has the active heating function, can be according to the temperature of ambient temperature initiative adjustment group battery, and the heat accumulation layer can turn into the heat storage with surplus electric quantity in the group battery simultaneously, guarantees that the battery is all in the best use temperature for a long time, has effectively solved the electric capacity reduction that low temperature charge-discharge leads to the group battery, causes the problem of separating out lithium even, has improved this novel heat preservation battery's safety in utilization.
drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an electrical schematic diagram of the main control circuit in the circuit board of the present invention.
Fig. 3 is an electrical schematic diagram of the solar constant power charging circuit and the charge prohibition control circuit in the circuit board of the present invention.
Fig. 4 is an electrical schematic diagram of the voltage measuring circuit in the circuit board of the present invention.
Fig. 5 is an electrical schematic diagram of a heating sheet control circuit in the circuit board of the present invention.
Fig. 6 is an electrical schematic diagram of the external temperature sensor access circuit in the circuit board of the present invention.
Fig. 7 is an electrical schematic diagram of the external temperature sensor circuit of the present invention.
Fig. 8 is an electrical schematic diagram of the internal temperature measuring circuit in the circuit board of the present invention.
Fig. 9 is an electrical schematic diagram of the voltage stabilizing circuit in the circuit board of the present invention.
Fig. 10 is an electrical schematic diagram of a status indication circuit in the circuit board of the present invention.
Fig. 11 is an electrical schematic diagram of the charge and discharge protection circuit in the circuit board of the present invention.
fig. 12 is an electrical schematic diagram of a power output circuit in the circuit board of the present invention.
Fig. 13 is an electrical schematic diagram of a battery circuit in the circuit board of the present invention.
Fig. 14 is an electrical schematic diagram of the solar charging indicating circuit in the circuit board of the present invention.
In the figure: 1. a protective housing; 2. a heat-insulating layer; 3. a heat conductive layer; 4. a circuit board; 5. a battery pack; 6. A heat storage layer; 7. a heating plate; 8. an internal temperature sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A novel heat-preservation battery comprises a protective shell 1, wherein a heat-preservation layer 2 is arranged in the protective shell 1, a circuit board 4, a battery pack 5 and an internal temperature sensor 8 are arranged in the heat-preservation layer 2, the circuit board 4 is positioned above the battery pack 5, a heat conduction layer 3 is arranged on the periphery of the battery pack 5, the battery pack 5 is communicated with a heating sheet 7 through the heat conduction layer 3, the battery pack 5 is connected with an external solar cell panel, and the internal temperature sensor 8 is fixed on the circuit board 4; the heating sheet 7 is also communicated with a heat storage layer 6, the heat storage layer 6 and the heating sheet 7 are both positioned in the heat insulation layer 2, and the heating sheet 7 is positioned between the heat storage layer 6 and the heat conduction layer 3; an external temperature sensor is arranged on the solar cell panel;
The battery pack 4 is made of a lithium battery, and has charging and discharging functions.
the heat preservation 2 uses fire resistive material to make, and the effect of heat preservation 2 is the inside temperature that keeps this novel heat preservation battery, when ambient temperature is too high or cross low excessively, guarantees that this novel heat preservation battery is in more stable temperature.
The heating sheet 7 is made of an electric heating material such as a carbon fiber or graphene ceramic heating sheet, and heats the battery pack 4 and the heat storage layer 6.
The heat storage layer 6 is made of a material having a large specific heat capacity such as paraffin for storing heat generated by the heater chip 7 and the battery pack 5, and releases the heat to maintain the temperature of the battery pack 5 when the heater chip 7 is not heated.
The heat conducting layer 3 wraps the periphery of the battery pack 5 and transfers heat among the battery pack 5, the heating sheet 7 and the heat storage layer 6.
Be provided with on the circuit board and be used for regulating and control each circuit of this novel heat preservation battery work, specifically include: the solar energy charging system comprises a main control circuit, a solar energy constant power charging circuit, a charging forbidding control circuit, a voltage measuring circuit, a heating plate control circuit, an external temperature sensor access circuit, an internal temperature measuring circuit, a voltage stabilizing circuit, a state indicating circuit, a charging and discharging protection circuit, a power supply output circuit and a solar energy charging indicating circuit.
in order to ensure the normal production work of each circuit of the novel heat preservation battery, the connection relationship of each circuit is as follows: the solar cell panel is electrically connected with the input ends of the solar constant-power charging circuit, the solar charging indicating circuit and the heating sheet control circuit; a battery pack circuit is arranged in the battery pack 5, and the output end of the solar constant-power charging circuit is electrically connected with the input end of the battery pack circuit; the input end of the solar constant-power charging circuit is also electrically connected with a charging forbidding control circuit;
The battery pack circuit in the battery pack 5 is electrically connected with the main control circuit and the charge-discharge protection circuit, the charge-discharge protection circuit is electrically connected with the voltage stabilizing circuit, the voltage measuring circuit and the power output circuit respectively, and the power output circuit is externally connected with electric equipment; the heating plate 7 is electrically connected with the output end of the heating plate control circuit, and the internal temperature sensor 8 is electrically connected with the input end of the internal temperature measuring circuit;
The output ends of the internal temperature measuring circuit, the voltage measuring circuit and the solar charging indicating circuit are respectively electrically connected with the input end of the main control circuit, the input end of the main control circuit is also electrically connected with the output end of the external temperature sensor access circuit, and the input end of the external temperature sensor access circuit is electrically connected with the external temperature sensor circuit in the external temperature sensor; the output end of the main control circuit is respectively and electrically connected with the input ends of the heating sheet control circuit, the state indicating circuit and the charging forbidding control circuit.
The main control circuit is shown in fig. 2, and a main control chip U2 adopts an STC15W204S chip to control the whole circuit by setting a program; the solar charging indicating circuit is shown in fig. 14, the U8 of the solar charging indicating circuit is used for detecting whether the solar cell panel generates power, and if the solar cell panel generates power, the U8 of the solar charging indicating circuit conducts the P12 pin of the main control chip U2 to ground.
The solar constant power charging circuit is shown in fig. 3, and adopts a solar constant power charging chip CN3722, the pin 6 of which is shorted to the ground, and the battery pack 5 is not charged.
the charge prohibition control circuit is an electrical schematic diagram shown by a frame line in fig. 3, when the charge prohibition control circuit is in short circuit with the 6 th pin of the solar constant-power charging circuit U3, the solar constant-power charging circuit will not charge the battery pack 5, and with this function, the main control circuit can control the charging state of the solar constant-power charging circuit to the battery pack 5.
As shown in fig. 4, the voltage measuring circuit is a voltage dividing circuit composed of a resistor R4 and a resistor R7, and when the voltage of the battery pack 5 reaches a preset value, the P55 pin of the main control chip U2 notifies the main control circuit to ensure that the main control circuit normally completes the regulation function.
As shown in fig. 5, the heater chip control circuit has a heater chip output terminal connected to the heater chip 7, and when Q3 of the heater chip control circuit is turned on, the heater chip control circuit is powered on. The circuit is connected with a normally closed temperature switch in series, and when the heating plate is out of control (the temperature is too high), the normally closed temperature switch is switched off, so that the power supply of the heating plate 7 is forcibly powered off, and the safety of the battery pack 5 is protected.
The external temperature sensor is DS18B20, and its electrical schematic is shown in fig. 7, and is connected to the whole circuit through the external sensor access circuit shown in fig. 6, and is used for detecting the temperature of the environment outside the battery pack 5.
the internal temperature sensor is a chip-type sensor using LM75A, and has an internal temperature measuring circuit as shown in fig. 8, and is soldered on the circuit board 4 for detecting the temperature of the environment inside the battery pack 5.
As shown in FIG. 9, the voltage stabilizing chip U7 adopts 1117-5V, and the battery pack 5 supplies power to the voltage stabilizing chip U7 to output 5V voltage.
as shown in fig. 11, the charge and discharge protection circuit protects the normal operation of the battery pack 5 and prevents the battery pack 5 from being over-discharged and over-charged; the charging and discharging circuit is electrically connected with a power output circuit, as shown in fig. 12, the output power of the battery pack 5 is connected in series with a recoverable fuse F3 to prevent output short circuit, and the power output power is externally connected with electrical equipment.
The status indication circuit is shown in fig. 10, and monitors the working status of the whole circuit, and is electrically connected with the main control circuit.
according to the connection relation of the circuits, the specific working process of the novel heat-preservation battery is as follows: first, the battery pack 5 employs a lithium battery having a discharge temperature ranging from-20 ℃ to 60 ℃ and a charge temperature ranging from 0 ℃ to 45 ℃.
When the external solar cell panel starts to generate electricity, the U8 of the solar energy state indicating circuit is conducted to ground the P12 pin of the main control chip U2, the main control chip U2 controls the U4 of the internal temperature measuring circuit to acquire the internal temperature of the cell pack 5 detected by the internal temperature sensor 8, if the internal temperature of the cell pack 5 is lower than 0 ℃, the main control chip U2 lowers the P14 pin, the Q2 of the charging control circuit is prohibited to be conducted, the 6 th pin of the solar constant power charging circuit U3 is short-circuited to the ground, and the U3 of the solar constant power charging circuit does not charge the cell pack 5.
The P31 pin of the main control chip U2 is put low, the Q3 of the heating sheet control circuit is conducted to supply power to the heating sheet 7, and the heating sheet 7 conducts heat to the heat conduction layer 3 wrapped outside the battery pack 5, so that each battery is heated; when the internal temperature sensor 8 detects that the temperature of the battery pack 5 is heated to be higher than 0 ℃, the main control chip U2 controls the Q2 of the charging forbidding control circuit to be cut off, and simultaneously, the Q3 of the heating sheet control circuit is cut off, and the U3 of the solar constant-power charging circuit charges the battery pack 5; when the voltage detection circuit detects that the battery pack 5 is fully charged, the main control chip U2 turns on the Q3 of the heating sheet control circuit to continue heating the battery pack 5, the heat storage layer 6 stores heat energy, and when the U4 of the internal temperature measurement circuit detects that the internal temperature has risen to 40 ℃, the Q3 of the heating sheet control circuit is turned off.
When the temperature of the battery pack 5 is above 0 ℃ during charging, the U3 of the solar constant-power charging circuit directly charges the battery pack 5; when the battery is fully charged, the U1 of the external temperature sensor circuit detects whether the external temperature of the battery pack 5 is below 10 ℃, if the temperature of the battery pack 5 is below 10 ℃, the Q2 of the charge forbidding control circuit is conducted after the battery is fully charged, and the solar constant-power charging circuit controls the U6 of the heating sheet control circuit to supply power to the heating sheet 7 so as to heat the battery; if the temperature of the battery 5 is above 10 c, only the battery 5 will be charged.
The utility model discloses a novel heat preservation battery has the active heating function, can be according to the temperature of ambient temperature initiative adjustment group battery, and the heat accumulation layer can turn into the heat storage with surplus electric quantity in the group battery simultaneously, guarantees that the battery is all in the best use temperature for a long time, has effectively solved the electric capacity reduction that low temperature charge-discharge leads to the group battery, causes the problem of separating lithium even, has improved this novel heat preservation battery's safety in utilization.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel heat preservation battery, includes protective housing (1), its characterized in that: the solar battery pack is characterized in that a heat insulation layer (2) is arranged in the protective shell (1), a circuit board (4), a battery pack (5) and an internal temperature sensor (8) are arranged in the heat insulation layer (2), the circuit board (4) is positioned above the battery pack (5), a heat conduction layer (3) is arranged on the periphery of the battery pack (5), the battery pack (5) is communicated with a heating sheet (7) through the heat conduction layer (3), the battery pack (5) is connected with an external solar battery panel, and the internal temperature sensor (8) is fixed on the circuit board (4); the heating sheets (7) are also communicated with a heat storage layer (6), the heat storage layer (6) and the heating sheets (7) are both positioned in the heat insulation layer (2), and the heating sheets (7) are positioned between the heat storage layer (6) and the heat conduction layer (3); an external temperature sensor is arranged on the solar cell panel;
The circuit board (4) is provided with a main control circuit, a solar constant-power charging circuit, a charging prohibition control circuit, a voltage measuring circuit, a heating plate control circuit, an external temperature sensor access circuit, an internal temperature measuring circuit, a voltage stabilizing circuit, a state indicating circuit, a charging and discharging protection circuit, a power supply output circuit and a solar charging indicating circuit;
The solar cell panel is electrically connected with the input ends of the solar constant-power charging circuit, the solar charging indicating circuit and the heating sheet control circuit; a battery pack circuit is arranged in the battery pack (5), and the output end of the solar constant-power charging circuit is electrically connected with the input end of the battery pack circuit; the input end of the solar constant-power charging circuit is also electrically connected with a charging forbidding control circuit;
The battery pack circuit in the battery pack (5) is electrically connected with the main control circuit and the charge-discharge protection circuit, the charge-discharge protection circuit is electrically connected with the voltage stabilizing circuit, the voltage measuring circuit and the power output circuit respectively, and the power output circuit is externally connected with electric equipment;
The heating plate (7) is electrically connected with the output end of the heating plate control circuit, and the internal temperature sensor (8) is electrically connected with the input end of the internal temperature measuring circuit;
The output ends of the internal temperature measuring circuit, the voltage measuring circuit and the solar charging indicating circuit are respectively electrically connected with the input end of the main control circuit, the input end of the main control circuit is also electrically connected with the output end of the external temperature sensor access circuit, and the input end of the external temperature sensor access circuit is electrically connected with the external temperature sensor circuit in the external temperature sensor; the output end of the main control circuit is respectively and electrically connected with the input ends of the heating sheet control circuit, the state indicating circuit and the charging forbidding control circuit.
2. The novel thermal insulation battery according to claim 1, characterized in that: the battery pack (5) adopts a lithium battery.
3. the novel thermal insulation battery according to claim 1, characterized in that: the heat-insulating layer (2) is made of flame-retardant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873774.3U CN209766606U (en) | 2019-06-12 | 2019-06-12 | Novel heat preservation battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873774.3U CN209766606U (en) | 2019-06-12 | 2019-06-12 | Novel heat preservation battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209766606U true CN209766606U (en) | 2019-12-10 |
Family
ID=68745476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920873774.3U Active CN209766606U (en) | 2019-06-12 | 2019-06-12 | Novel heat preservation battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209766606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521436A (en) * | 2021-08-30 | 2021-10-22 | 中国人民解放军空军军医大学 | Infusion vehicle used in cold area |
-
2019
- 2019-06-12 CN CN201920873774.3U patent/CN209766606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521436A (en) * | 2021-08-30 | 2021-10-22 | 中国人民解放军空军军医大学 | Infusion vehicle used in cold area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210167483U (en) | Lithium battery temperature management system | |
| CN111009948A (en) | Lithium battery protection board capable of actively adjusting charging and discharging current and current adjusting mode thereof | |
| CN202014087U (en) | Lithium battery charging protection circuit for portable system | |
| CN103033693B (en) | A kind of mobile terminal charging measurement system and method | |
| CN209766606U (en) | Novel heat preservation battery | |
| CN205195249U (en) | Digit BMS protection shield with data storage function | |
| CN107154772A (en) | A kind of control system of wind/light complementation controller | |
| CN214589096U (en) | Automatic charging device of lithium cell low temperature | |
| CN213303921U (en) | Special battery for starting engine | |
| CN203193337U (en) | Power battery pack discharge equalizer | |
| CN208904154U (en) | A kind of bipolarity rechargeable battery | |
| CN208690338U (en) | A kind of lithium battery overcharges protective device | |
| CN208157471U (en) | A kind of polymer Li-ion battery group | |
| CN207098674U (en) | A kind of lithium cell protecting device accurately controlled | |
| CN206893736U (en) | A kind of formation device of solution 3V level lithium titanate battery flatulence | |
| CN216213663U (en) | Energy storage battery structure for low-temperature use | |
| CN206004359U (en) | A kind of lithium battery group is connected long line charging device | |
| CN211606147U (en) | Lithium battery control circuit system supporting low-temperature scene use | |
| CN210576303U (en) | Low-temperature charging and discharging protection device for lithium battery | |
| CN212587600U (en) | High-voltage lithium ion battery pack control system | |
| CN216774351U (en) | Lithium battery protection circuit | |
| CN214153013U (en) | Ultra-low temperature lithium ion battery organizes heating device | |
| CN215115993U (en) | Lithium ion battery heat measuring device | |
| CN109980714A (en) | It is a kind of for extending the control device of lithium battery service life | |
| CN214069561U (en) | Battery steady state protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |