CN203521560U - Preheating circuit for lithium battery - Google Patents
Preheating circuit for lithium battery Download PDFInfo
- Publication number
- CN203521560U CN203521560U CN201320705461.XU CN201320705461U CN203521560U CN 203521560 U CN203521560 U CN 203521560U CN 201320705461 U CN201320705461 U CN 201320705461U CN 203521560 U CN203521560 U CN 203521560U
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- pin
- semiconductor
- oxide
- 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.)
- Expired - Lifetime
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- Secondary Cells (AREA)
Abstract
The utility model discloses a preheating circuit for a lithium battery. Existing preheating circuits for lithium batteries are high in cost and complicate in circuit and do not have the function of automatically turning off a power supply when heating is finished and a battery is in low voltage. The preheating circuit provided by the utility model is characterized in that when battery heating is finished and normal use temperature is reached, a first operation amplifier in a temperature detection circuit outputs a low level voltage signal, the positive electrode of a second diode in a power circuit is set to be low level through a second resistor, so that a second MOS (Metal Oxide Semiconductor) tube in the power circuit is completely closed; when the voltage of a battery is too low, a second operation amplifier in a voltage detection circuit outputs a low level voltage signal, the positive electrode of the second diode is set to be low level through a third diode, so that the second MOS tube in the power circuit is completely closed. By using the preheating circuit, under low temperature environment, the lithium battery is quickly preheated, so that the lithium battery can be normally used under relatively proper temperature, and the preheating circuit has the function of automatically turning off the power supply when the heating is finished and the battery is in low voltage.
Description
Technical field
The utility model relates to lithium battery field, and specifically a kind of lithium battery preheats circuit.
Background technology
Existing lithium battery is under low temperature environment, and high-rate discharge ability can degradation.In order to meet the high-multiplying power discharge demand of lithium battery, lithium battery need to be preheated to the temperature that is relatively applicable to high-multiplying power discharge.Some lithium batteries that occur at present preheat circuit, and its cost is high, circuit is complicated, and do not have and heated and the automatic powered-down function of battery low-voltage.
Utility model content
Technical problem to be solved in the utility model is to overcome the defect that above-mentioned prior art exists, provide a kind of lithium battery cheaply to preheat circuit, it is under low temperature environment, to lithium battery, preheat fast, lithium battery is normally used at proper temperature, and have and heated and the automatic powered-down function of battery low-voltage.
For this reason, the utility model adopts following technical scheme: a kind of lithium battery preheats circuit, comprise circuit connects successively power circuit, indicator light circuit, temperature sensing circuit and heater circuit, it is characterized in that, between described power circuit and temperature sensing circuit, be connected to voltage detecting circuit, described power circuit is controlled by temperature sensing circuit and voltage detecting circuit; When heating of battery completes while reaching normal serviceability temperature, the first operational amplifier output low level voltage signal in temperature sensing circuit, through the second resistance, the second diode anode in power circuit is set to low level, the second metal-oxide-semiconductor in power circuit is closed completely, and power circuit quits work; When cell voltage is too low, the second operational amplifier output low level voltage signal in voltage detecting circuit, is set to low level through the 3rd diode by the second diode anode, and the second metal-oxide-semiconductor in power circuit is closed completely, and power circuit quits work.
As the further of technique scheme improved and supplemented, the utility model is taked following technical measures:
Described power circuit is comprised of P-channel enhancement type the first metal-oxide-semiconductor, N channel enhancement the second metal-oxide-semiconductor, the first resistance, the 3rd resistance, the 7th resistance, the first diode, the second diode, electric capacity, button and power connector; The S utmost point of the first metal-oxide-semiconductor is connected with 1 pin of power connector, button and the common port of the 3rd resistance, and the G utmost point of the first metal-oxide-semiconductor is extremely connected with the D of the other end of the 3rd resistance and the second metal-oxide-semiconductor; The other end of button is connected with one end of the first resistance; The other end of the first resistance is connected with the positive pole of the first diode; The negative pole of the first diode with the G utmost point of the second metal-oxide-semiconductor, the negative pole of the second diode, the 7th one end of resistance and the common port of electric capacity be connected; Another common end grounding of the S utmost point of the second metal-oxide-semiconductor and the 7th resistance and electric capacity; The positive pole of the second diode ground connection that is connected with the common port of positive pole, the second resistance and the 6th resistance of the 3rd diode, 2 pin ground connection of connector.
Described temperature sensing circuit is comprised of the first operational amplifier, NTC thermistor, pressurizer, the 4th resistance, the 5th resistance, the 14 resistance and the 15 resistance, 8 pin of the first operational amplifier are extremely connected with the D of the first metal-oxide-semiconductor, 4 pin are connected to the ground, 3 pin are connected with the common port of the 4th resistance with NTC thermistor, 2 pin are connected with the common port of the 15 resistance with the 14 resistance, the other end of NTC thermistor is connected to the ground, the common port of the other end of the 4th resistance and the 5th resistance and the 15 resistance is connected to 1 pin and 3 pin of pressurizer, the other end of the 5th resistance is extremely connected with the D of the first metal-oxide-semiconductor, 2 pin of pressurizer are connected to the ground, 2 pin of the first operational amplifier are connected with the common port of the 15 resistance with the 14 resistance, the other end of the 14 resistance is connected to the ground.
Described voltage detecting circuit is comprised of the second operational amplifier, the 12 resistance and the 13 resistance; 7 pin of the second operational amplifier are connected with the negative pole of the 3rd diode, 5 pin are connected with the common port of the 13 resistance with the 12 resistance, 6 pin are connected with 3 pin with 1 pin of pressurizer, and the other end of the 12 resistance is extremely connected with the D of the first metal-oxide-semiconductor, and the other end of the 13 resistance is connected to the ground.
Described heater circuit is comprised of N channel enhancement the 3rd metal-oxide-semiconductor, the 6th resistance and heating plate; The D utmost point of the 3rd metal-oxide-semiconductor is connected with one end of heating plate, and the G utmost point is connected with the 6th resistance, and the S utmost point is connected to the ground, and the other end of heating plate is connected with 1 pin positive source of power connector.
Described indicator light circuit is comprised of the 8th resistance, the 9th resistance, the first light-emitting diode and the second light-emitting diode, one end of the 8th resistance is extremely connected with the D of the first metal-oxide-semiconductor, the other end of the 8th resistance is connected with the positive pole of the first light-emitting diode, the negative pole of the first light-emitting diode is connected with 1 pin of the first operational amplifier, the positive pole of the second light-emitting diode is connected with 1 pin of the first operational amplifier, and the negative pole of the second light-emitting diode is connected to the ground by the 9th resistance.
The utlity model has following beneficial effect: under low temperature environment, to lithium battery, preheat fast, lithium battery is normally used at proper temperature, and have and heated and the automatic powered-down function of battery low-voltage.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the utility model is further described.
Lithium battery as shown in Figure 1 preheats circuit, it is comprised of power circuit, indicator light circuit, temperature sensing circuit, heater circuit and voltage detecting circuit, between described power circuit and temperature sensing circuit, connect voltage detecting circuit, described power circuit is controlled by temperature sensing circuit and voltage detecting circuit.
Described power circuit is comprised of P-channel enhancement type the first metal-oxide-semiconductor Q1, N channel enhancement the second metal-oxide-semiconductor Q2, the first resistance R 1, the 3rd resistance R 3, the 7th resistance R 7, the first diode D1, the second diode D2, capacitor C 1, button S1 and power connector J1; The S utmost point of the first metal-oxide-semiconductor Q1 is connected with 1 pin of power connector J1, button S1 and the common port of the 3rd resistance R 3, and the G utmost point of the first metal-oxide-semiconductor Q1 is extremely connected with the D of the other end of the 3rd resistance R 3 and the second metal-oxide-semiconductor Q2; The other end of button S1 is connected with one end of the first resistance R 1; The other end of the first resistance R 1 is connected with the positive pole of the first diode D1; The negative pole of the first diode D1 is connected with the common port of capacitor C 1 with the G utmost point of the second metal-oxide-semiconductor Q2, one end of the negative pole of the second diode D2, the 7th resistance R 7; Another common end grounding of the S utmost point of the second metal-oxide-semiconductor Q2 and the 7th resistance R 7 and capacitor C 1; The positive pole of the second diode D2 ground connection that is connected with the common port of positive pole, the second resistance R 2 and the 6th resistance R 6 of the 3rd diode D3, the 2 pin ground connection of connector J1.
Described temperature sensing circuit is comprised of the first operational amplifier U1A, NTC thermistor R10, pressurizer U2, the 4th resistance R 4, the 5th resistance R the 5, the 14 resistance R 14 and the 15 resistance R 15, 8 pin of the first operational amplifier U1A are extremely connected with the D of the first metal-oxide-semiconductor Q1, 4 pin are connected to the ground, 3 pin are connected with the common port of the 4th resistance R 4 with NTC thermistor R10, 2 pin are connected with the common port of the 15 resistance R 15 with the 14 resistance R 14, the other end of NTC thermistor R10 is connected to the ground, the common port of the other end of the 4th resistance R 4 and the 5th resistance R 5 and the 15 resistance R 15 is connected to 1 pin and 3 pin of pressurizer U2, the other end of the 5th resistance R 5 is extremely connected with the D of the first metal-oxide-semiconductor Q1, 2 pin of pressurizer U2 are connected to the ground, 2 pin of the first operational amplifier U1A are connected with the common port of the 15 resistance R 15 with the 14 resistance R 14, the other end of the 14 resistance R 14 is connected to the ground.
Described voltage detecting circuit is comprised of the second operational amplifier U1B, the 12 resistance R 12 and the 13 resistance R 13; 7 pin of the second operational amplifier U1B are connected with the negative pole of the 3rd diode D3,5 pin are connected with the common port of the 13 resistance R 13 with the 12 resistance R 12,6 pin are connected with 3 pin with 1 pin of pressurizer U2, the other end of the 12 resistance R 12 is extremely connected with the D of the first metal-oxide-semiconductor Q1, and the other end of the 13 resistance R 13 is connected to the ground.
Described heater circuit is comprised of N channel enhancement the 3rd metal-oxide-semiconductor Q3, the 6th resistance R 6 and heating plate R11; The D utmost point of the 3rd metal-oxide-semiconductor Q3 is connected with one end of heating plate R11, and the G utmost point is connected with the 6th resistance R 6, and the S utmost point is connected to the ground, and the other end of heating plate R11 is connected with the 1 pin positive source of power connector J1.
Described indicator light circuit is comprised of the 8th resistance R 8, the 9th resistance R 9, the first light-emitting diode D4 and the second light-emitting diode D5, one end of the 8th resistance R 8 is extremely connected with the D of the first metal-oxide-semiconductor Q1, the other end of the 8th resistance R 8 is connected with the positive pole of the first light-emitting diode D4, the negative pole of the first light-emitting diode D4 is connected with 1 pin of the first operational amplifier U1A, the positive pole of the second light-emitting diode D5 is connected with 1 pin of the first operational amplifier U1A, and the negative pole of the second light-emitting diode D5 is connected to the ground by the 9th resistance R 9.
When heating of battery completes while reaching normal serviceability temperature, the first operational amplifier U1A output low level voltage signal in temperature sensing circuit, through the second resistance R 2, the second diode D2 anode in power circuit is set to low level, the second metal-oxide-semiconductor Q2 in power circuit is closed completely, and power circuit quits work; When cell voltage is too low, the second operational amplifier U1B output low level voltage signal in voltage detecting circuit, through the 3rd diode D3, the second diode D2 anode is set to low level, the second metal-oxide-semiconductor Q2 in power circuit is closed completely, power circuit quits work.
Operating circuit of the present utility model is as follows:
1. power circuit: when button S1 is pressed, electric current drives the second metal-oxide-semiconductor Q2 by button S1, the first resistance (current-limiting resistance) R1, the first diode D1, makes the complete conducting of Q2, thereby makes the first metal-oxide-semiconductor Q1 grid potential step-down, makes the complete conducting of Q1.The cathode voltage of battery is output as the power supply of rear class power circuit through Q1.Capacitor C 1 and the 7th resistance R 7 form delay circuits, make the power circuit can time-delay closing, to guarantee power circuit steady operation.
2. temperature sensing circuit: the 5th resistance R 5 and pressurizer U2 form the reference voltage as temperature sensing circuit and voltage detecting circuit of 2.5V.The dividing potential drop parameter of the 14 resistance R 14 and the 15 resistance R 15 is inputted the 2 pin reverse input ends of the first operational amplifier U1A as temperature comparison value, the 14 resistance R 4 forms temperature sensing circuit with NTC thermistor R10, R10 will change with battery temperature, and make change in resistance produce different voltage drops, 3 pin that make corresponding voltage signal input U1A are input in the same way, U1A follows according to the benchmark value of input and the temperature voltage value of input, export more afterwards the signal that corresponding low and high level changes, this signal is served power circuit, indicator light circuit and heater circuit.
3. heater circuit: flow to the 3rd metal-oxide-semiconductor Q3 grid according to the 1 pin output voltage signal of U1A through the second resistance R 2 and the 6th resistance R 6, make the complete conducting of Q3 or close completely, Q3 electric conduction fails to be convened for lack of a quorum and flows through heating plate R11 is heating of battery, stops heating when Q3 closes.
4. indicator light circuit: the 1 pin output high level of U1A during heating, electric current, through the 9th resistance (current-limiting resistance) R9, is lighted D5 red LED; The 1 pin output low level of U1A while stopping heating, electric current, through R8, is lighted D4 green LED.
5. voltage detecting circuit: pressurizer U2 provides 2.5V reference voltage, the 6 pin reverse input ends of U1B, R12 and R13 follow the change in voltage according to battery, produce corresponding voltage comparison signal, and 5 pin of U1B are input in the same way, U1B follows according to input signal and by 7 pin, exports corresponding low and high level signal more afterwards, 7 pin output low levels when cell voltage being detected lower than reference voltage, signal phase and operation with U1A, close heater circuit, and powered-down circuit, prevent that battery is by overdischarge.
The above, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in protection range of the present utility model.
Claims (6)
1. a lithium battery preheats circuit, comprise circuit connects successively power circuit, indicator light circuit, temperature sensing circuit and heater circuit, it is characterized in that, between described power circuit and temperature sensing circuit, be connected to voltage detecting circuit, described power circuit is controlled by temperature sensing circuit and voltage detecting circuit; When heating of battery completes while reaching normal serviceability temperature, the first operational amplifier (U1A) output low level voltage signal in temperature sensing circuit, through the second resistance (R2), the second diode (D2) anode in power circuit is set to low level, the second metal-oxide-semiconductor (Q2) in power circuit is closed completely, and power circuit quits work; When cell voltage is too low, the second operational amplifier (U1B) output low level voltage signal in voltage detecting circuit, through the 3rd diode (D3), the second diode (D2) anode is set to low level, the second metal-oxide-semiconductor (Q2) in power circuit is closed completely, and power circuit quits work.
2. lithium battery according to claim 1 preheats circuit, it is characterized in that, described power circuit is comprised of P-channel enhancement type the first metal-oxide-semiconductor (Q1), N channel enhancement the second metal-oxide-semiconductor (Q2), the first resistance (R1), the 3rd resistance (R3), the 7th resistance (R7), the first diode (D1), the second diode (D2), electric capacity (C1), button (S1) and power connector (J1); The S utmost point of the first metal-oxide-semiconductor (Q1) is connected with 1 pin, button (S1) and the common port of the 3rd resistance (R3) of power connector (J1), and the G utmost point of the first metal-oxide-semiconductor (Q1) is extremely connected with the other end of the 3rd resistance (R3) and the D of the second metal-oxide-semiconductor (Q2); The other end of button (S1) is connected with one end of the first resistance (R1); The other end of the first resistance (R1) is connected with the positive pole of the first diode (D1); The negative pole of the first diode (D1) is connected with the common port of electric capacity (C1) with the G utmost point of the second metal-oxide-semiconductor (Q2), one end of the negative pole of the second diode (D2), the 7th resistance (R7); Another common end grounding of the S utmost point of the second metal-oxide-semiconductor (Q2) and the 7th resistance (R7) and electric capacity (C1); The positive pole of the second diode (D2) ground connection that is connected with the common port of positive pole, the second resistance (R2) and the 6th resistance (R6) of the 3rd diode (D3), 2 pin ground connection of connector (J1).
3. lithium battery according to claim 2 preheats circuit, it is characterized in that, described temperature sensing circuit is comprised of the first operational amplifier (U1A), NTC thermistor (R10), pressurizer (U2), the 4th resistance (R4), the 5th resistance (R5), the 14 resistance (R14) and the 15 resistance (R15), 8 pin of the first operational amplifier (U1A) are extremely connected with the D of the first metal-oxide-semiconductor (Q1), 4 pin are connected to the ground, 3 pin are connected with the common port of the 4th resistance (R4) with NTC thermistor (R10), 2 pin are connected with the common port of the 15 resistance (R15) with the 14 resistance (R14), the other end of NTC thermistor (R10) is connected to the ground, the common port of the other end of the 4th resistance (R4) and the 5th resistance (R5) and the 15 resistance (R15) is connected to 1 pin and 3 pin of pressurizer (U2), the other end of the 5th resistance (R5) is extremely connected with the D of the first metal-oxide-semiconductor (Q1), 2 pin of pressurizer (U2) are connected to the ground, 2 pin of the first operational amplifier (U1A) are connected with the common port of the 15 resistance (R15) with the 14 resistance (R14), the other end of the 14 resistance (R14) is connected to the ground.
4. lithium battery according to claim 3 preheats circuit, it is characterized in that, described voltage detecting circuit is comprised of the second operational amplifier (U1B), the 12 resistance (R12) and the 13 resistance (R13); 7 pin of the second operational amplifier (U1B) are connected with the negative pole of the 3rd diode (D3), 5 pin are connected with the common port of the 13 resistance (R13) with the 12 resistance (R12), 6 pin are connected with 3 pin with 1 pin of pressurizer (U2), the other end of the 12 resistance (R12) is extremely connected with the D of the first metal-oxide-semiconductor (Q1), and the other end of the 13 resistance (R13) is connected to the ground.
5. lithium battery according to claim 4 preheats circuit, it is characterized in that, described heater circuit is comprised of N channel enhancement the 3rd metal-oxide-semiconductor (Q3), the 6th resistance (R6) and heating plate (R11); The D utmost point of the 3rd metal-oxide-semiconductor (Q3) is connected with one end of heating plate (R11), and the G utmost point is connected with the 6th resistance (R6), and the S utmost point is connected to the ground, and the other end of heating plate (R11) is connected with 1 pin positive source of power connector (J1).
6. lithium battery according to claim 4 preheats circuit, it is characterized in that, described indicator light circuit is by the 8th resistance (R8), the 9th resistance (R9), the first light-emitting diode (D4) and the second light-emitting diode (D5) form, one end of the 8th resistance (R8) is extremely connected with the D of the first metal-oxide-semiconductor (Q1), the other end of the 8th resistance (R8) is connected with the positive pole of the first light-emitting diode (D4), the negative pole of the first light-emitting diode (D4) is connected with 1 pin of the first operational amplifier (U1A), the positive pole of the second light-emitting diode (D5) is connected with 1 pin of the first operational amplifier (U1A), the negative pole of the second light-emitting diode (D5) is connected to the ground by the 9th resistance (R9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705461.XU CN203521560U (en) | 2013-11-08 | 2013-11-08 | Preheating circuit for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705461.XU CN203521560U (en) | 2013-11-08 | 2013-11-08 | Preheating circuit for lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521560U true CN203521560U (en) | 2014-04-02 |
Family
ID=50380441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705461.XU Expired - Lifetime CN203521560U (en) | 2013-11-08 | 2013-11-08 | Preheating circuit for lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521560U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317331A (en) * | 2014-09-19 | 2015-01-28 | 北京中电兴发科技有限公司 | Pre-heating control device and pre-heating control method based on optical MOS relay |
| CN104699142A (en) * | 2015-02-11 | 2015-06-10 | 广东易事特电源股份有限公司 | Ups automatic heating circuit |
| CN107086635A (en) * | 2017-06-02 | 2017-08-22 | 扬州市纵横光电科技有限公司 | A kind of energy storage charging-discharging controller with dual control heating function |
-
2013
- 2013-11-08 CN CN201320705461.XU patent/CN203521560U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317331A (en) * | 2014-09-19 | 2015-01-28 | 北京中电兴发科技有限公司 | Pre-heating control device and pre-heating control method based on optical MOS relay |
| CN104699142A (en) * | 2015-02-11 | 2015-06-10 | 广东易事特电源股份有限公司 | Ups automatic heating circuit |
| CN104699142B (en) * | 2015-02-11 | 2017-04-05 | 广东易事特电源股份有限公司 | UPS automatic heating circuits |
| CN107086635A (en) * | 2017-06-02 | 2017-08-22 | 扬州市纵横光电科技有限公司 | A kind of energy storage charging-discharging controller with dual control heating function |
| CN107086635B (en) * | 2017-06-02 | 2024-05-14 | 扬州市纵横光电科技有限公司 | Energy storage charge-discharge controller with double-control heating function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200810317A (en) | Charging circuit of serial-connected batteries without damaging in uniform charging | |
| CN203521560U (en) | Preheating circuit for lithium battery | |
| CN201876747U (en) | Temperature-control heater | |
| CN209046314U (en) | A kind of 7 section lithium battery pack charge-discharge control circuits | |
| CN105449312B (en) | A kind of heating control circuit for lithium ion battery | |
| CN105960055B (en) | A kind of hot plug protection circuit for LED illuminator | |
| CN203632903U (en) | Solar street lamp controller | |
| CN206517130U (en) | 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device | |
| CN206272264U (en) | Battery photovoltaic commercial power complementary combinations Logic control module | |
| CN206041578U (en) | Double cell single port charging control circuit | |
| CN205051402U (en) | Lithium batteries control circuit | |
| CN204794046U (en) | Polymer battery protection shield circuit | |
| CN206283309U (en) | A kind of 12V batteries photovoltaic commercial power complementation charge and discharge maintenance device | |
| CN106950868A (en) | A kind of environment inside car management information system | |
| CN205249168U (en) | Light -operated switch circuit | |
| CN207098642U (en) | A kind of baby battery charging device | |
| CN204103480U (en) | A kind of charger reversal connection and short-circuit protection circuit | |
| CN204761073U (en) | Solar energy is full of electrical shutoff control ware | |
| CN203574598U (en) | Solar battery assembly | |
| CN206117117U (en) | Direct current heater undervoltage protection circuit | |
| CN205620468U (en) | Multi -functional single -phase compound rate ammeter | |
| CN203562805U (en) | Intelligent USB charging plug circuit | |
| CN204242124U (en) | A kind of pressure inductive wireless mouse | |
| CN203573988U (en) | Protective circuit for photovoltaic battery pack | |
| CN204634062U (en) | A kind of electric water heater heating circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU TIANFENG POWER CO., LTD. Free format text: FORMER NAME: HANGZHOU WANMA HIGH-ENERGY BATTERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310022 Hangzhou, Zhejiang, Gongshu District Pro halfway on the road No. 118 Patentee after: HANGZHOU SKYRICH POWER Co.,Ltd. Address before: 310022 Hangzhou, Zhejiang, Gongshu District Pro halfway on the road No. 118 Patentee before: HANGZHOU WANMA HIGH-ENERGY BATTERY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |