CN117595459B - Output voltage switching system and emergency starting power supply - Google Patents
Output voltage switching system and emergency starting power supply Download PDFInfo
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- CN117595459B CN117595459B CN202410063240.XA CN202410063240A CN117595459B CN 117595459 B CN117595459 B CN 117595459B CN 202410063240 A CN202410063240 A CN 202410063240A CN 117595459 B CN117595459 B CN 117595459B
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- 239000003990 capacitor Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 23
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to an output voltage switching system and an emergency starting power supply, comprising: a dual battery unit including a first battery BT1 and a second battery BT2; the voltage switching unit is used for switching the output voltage of the double battery units and comprises a first switch assembly, a second switch assembly and a third switch assembly; a control unit for controlling the voltage switching unit; the first battery BT1 and the second battery BT2 are connected in parallel with a first switch component, the second switch component is connected in series between the positive electrode of the first battery BT1 and the first switch component, and the third switch component is connected in series between the negative electrode of the second battery BT2 and the first switch component; the second switch component and the third switch component are switched together, and the first switch component is opposite to the second switch component and the third switch in switch state; the positive electrode of the first battery BT1 serves as the positive electrode output end P+ of the double battery unit, and the negative electrode of the second battery BT2 serves as the negative electrode output end P-of the double battery unit. The invention can automatically switch the output voltage according to the voltage requirement of the external storage battery.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to an output voltage switching system and an emergency starting power supply.
Background
With the development of the vehicle and equipment industry, the demand for providing emergency starting power supplies for vehicles and equipment is also increasing, the vehicles and equipment are started by built-in storage batteries (usually adopting voltages of 12V, 24V and the like), and the emergency starting power supplies are required to keep the same voltage as the built-in storage batteries and also are required to be matched with voltages of 12V, 24V and the like in order to match the starting voltage of the vehicles or equipment and the voltage of the built-in storage batteries.
In the prior art, an emergency starting power supply usually adopts two groups of battery cell modules with different voltages to independently supply power to vehicles or equipment with different voltage requirements, but the use of the two groups of battery cell modules with different voltages certainly increases the cost, and the whole quality of the product is increased, so that the occupied space is increased; in addition, two groups of same battery cell modules are connected in series, different interfaces are arranged for matching the voltages of built-in storage batteries of different vehicles or equipment, but with continuous use, the circuit design can lead to the fact that the voltage difference between the two groups of battery cell modules with the same original voltage is larger and larger, and the service life and the product reliability of the battery cell modules are greatly reduced.
Therefore, an emergency starting power supply capable of automatically switching output voltage according to the voltage requirements of built-in storage batteries of different vehicles or equipment is urgently needed, and the problems of high cost and low service life of a battery cell module in the prior art are avoided.
Disclosure of Invention
The invention aims to provide an output voltage switching system and an emergency starting power supply, which can automatically switch output voltage according to the voltage requirements of built-in storage batteries of different vehicles or equipment, and avoid the problems of high cost and low service life of a cell module in the prior art.
In a first aspect, the present application provides an output voltage switching system, which adopts the following technical scheme:
an output voltage switching system comprising:
A double battery unit for outputting a voltage, the double battery unit including the same first battery BT1 and second battery BT2;
The voltage switching unit is used for switching the output voltage of the double battery units and comprises a first switch assembly, a second switch assembly and a third switch assembly;
a control unit for controlling the voltage switching unit;
The first switch component is respectively connected with the first battery BT1 and the second battery BT2 in parallel, the second switch component is connected between the positive electrode of the first battery BT1 and the first switch component in series, and the third switch component is connected between the negative electrode of the second battery BT2 and the first switch component in series;
The second switch component and the third switch component are switched together, and the first switch component is opposite to the second switch component and the third switch in switch state;
The positive electrode of the first battery BT1 is used as the positive electrode output end P+ of the double battery unit, and the negative electrode of the second battery BT2 is used as the negative electrode output end P-of the double battery unit.
Preferably, the first switch assembly comprises a relay K1, a relay K2 and a diode D2 which are connected in parallel, and the cathode of the diode D2 is connected with a voltage VCC;
The second switch component comprises a relay K3, a relay K4 and a diode D3 which are connected in parallel, and the cathode of the diode D3 is connected with a voltage VCC;
the third switch assembly comprises a relay K5, a relay K6 and a diode D1 which are connected in parallel, the cathode of the diode D1 is connected with a voltage VCC, and the anode of the diode D1 is connected with the anode of the diode D3.
Preferably, the rated voltage of each of the first battery BT1 and the second battery BT2 is 12V.
Preferably, the output voltage switching system further comprises a MOS switch unit and a battery polarity detection unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit;
The battery polarity detection unit comprises a capacitor C27, a capacitor C40, a resistor R43, a resistor R47, a resistor R57 and a resistor R80; the capacitor C40, the capacitor C27, the resistor R43 and the resistor R47 are sequentially connected in series, the resistor R80 is connected with the capacitor C40 in parallel, the resistor R57 is connected with the capacitor C40 in parallel, and one end, connected with the capacitor C40, the capacitor C27, the resistor R57 and the resistor R80, is grounded; the negative electrode output end P-is connected between the resistor R43 and the resistor R47, the connection point of the capacitor C27, the resistor R43 and the resistor R57 is a battery voltage detection end, and the battery voltage detection end is electrically connected with the control unit.
Preferably, the output voltage switching system further comprises a MOS switch unit and a battery voltage detection unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit;
The battery voltage detection unit comprises a resistor R8, a resistor R12 and a capacitor C1; one end of the resistor R8 is connected with the positive electrode of the first battery BT1 or the second battery BT2, and the other end of the resistor R12 is connected with one end of the resistor; the other end of the resistor R12 is grounded; one end of the capacitor C1 is connected between the resistor R8 and the resistor R12, and the other end is grounded; the other end of the resistor R8 is electrically connected with the control unit.
In a second aspect, the present application provides a clamping device, which adopts the following technical scheme:
an emergency starting power supply comprises the output voltage switching system.
Compared with the prior art, the invention has the following beneficial effects:
The voltage switching unit is controlled by the control unit, and the serial-parallel connection relation between the first battery BT1 and the second battery BT2 is changed to realize the switching of the output voltages of the double battery units. For example, the output voltage switching system is applied to an emergency starting power supply, the system can automatically adjust the output voltage according to the voltage requirements of different vehicles or built-in storage batteries, and can meet the requirements of different voltages such as 12V and 24V, so that the problems of cost increase, product weight and space occupation increase or series connection of two identical cell modules, larger voltage difference between the two cell modules caused by different interfaces, service life reduction and the like caused by adopting the cell modules with the two different voltages in the traditional design are avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the invention, without affecting the effect or achievement of the objective.
Fig. 1 is a schematic diagram of a dual battery unit and a voltage switching unit in the present embodiment;
FIG. 2 is a schematic diagram of a battery polarity detection unit in the embodiment;
fig. 3 is a schematic diagram of the structure of the battery voltage detecting unit in the present embodiment.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, the output voltage switching system disclosed in the present embodiment includes: a dual battery unit for outputting a voltage; a voltage switching unit for switching output voltages of the double battery units; a control unit (not shown in the figure) for controlling the voltage switching unit;
The double battery unit comprises a first battery BT1 and a second battery BT2 which are identical; the voltage switching unit comprises a first switch assembly, a second switch assembly and a third switch assembly;
The first switch component is respectively connected with the first battery BT1 and the second battery BT2 in parallel, the second switch component is connected between the positive electrode of the first battery BT1 and the first switch component in series, and the third switch component is connected between the negative electrode of the second battery BT2 and the first switch component in series; the second switch component and the third switch component are switched together, and the first switch component is opposite to the second switch component and the third switch in switch state; the positive electrode of the first battery BT1 serves as the positive electrode output end P+ of the double battery unit, and the negative electrode of the second battery BT2 serves as the negative electrode output end P-of the double battery unit.
The voltage switching unit is controlled by the control unit, and the serial-parallel connection relation between the first battery BT1 and the second battery BT2 is changed to realize the switching of the output voltages of the double battery units. For example, the output voltage switching system is applied to an emergency starting power supply, the system can automatically adjust the output voltage according to the voltage requirements of different vehicles or built-in storage batteries, and can meet the requirements of different voltages such as 12V and 24V, so that the problems of cost increase, product weight and space occupation increase or series connection of two identical cell modules, larger voltage difference between the two cell modules caused by different interfaces, service life reduction and the like caused by adopting the cell modules with the two different voltages in the traditional design are avoided.
Specifically, in the present embodiment, the rated voltages of the first battery BT1 and the second battery BT2 are both 12V. When 12V voltage is required to be output, a first switch component in the voltage switching unit is closed through the control unit, a second switch component and a third switch component are opened, so that the first battery BT1 and the second battery BT2 are connected in parallel, and the output voltage between the positive electrode output end P+ and the negative electrode output end P-is 12V; when 24V voltage is required to be output, a first switch component in the voltage switching unit is opened through the control unit, a second switch component and a third switch component are closed, so that the first battery BT1 and the second battery BT2 are connected in series, and the output voltage between the positive electrode output end P+ and the negative electrode output end P-is 24V.
Referring to fig. 1, the first switching assembly includes a relay K1, a relay K2, and a diode D2 connected in parallel, a cathode of the diode D2 being connected to a voltage VCC; the second switch component comprises a relay K3, a relay K4 and a diode D3 which are connected in parallel, and the cathode of the diode D3 is connected with a voltage VCC; the third switch assembly comprises a relay K5, a relay K6 and a diode D1 which are connected in parallel, the cathode of the diode D1 is connected with a voltage VCC, and the anode of the diode D1 is connected with the anode of the diode D3.
Each switch assembly comprises two relays which are connected in parallel, and the two relays are connected in parallel, so that the larger current control capacity can be realized, and the current which can be carried by the two relays is larger than that which can be carried by a single relay. And the diode D2, the diode D1 and the diode D3 can prevent reverse voltage from being generated and damaging the circuit when the relay is opened, thereby protecting the switch assembly and the related circuit from the reverse voltage.
Referring to fig. 2, the output voltage switching system further includes a MOS switch unit (not shown) and a battery polarity detection unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit;
Specifically, the battery polarity detection unit includes a capacitor C27, a capacitor C40, a resistor R43, a resistor R47, a resistor R57, and a resistor R80; the capacitor C40, the capacitor C27, the resistor R43 and the resistor R47 are sequentially connected in series, the resistor R80 is connected with the capacitor C40 in parallel, the resistor R57 is connected with the capacitor C40 in parallel, and one end, connected with the capacitor C40, the capacitor C27, the resistor R57 and the resistor R80, is grounded; the negative electrode output end P-is connected between the resistor R43 and the resistor R47, and the connection point of the capacitor C27, the resistor R43 and the resistor R57 is a battery voltage detection end which is electrically connected with the control unit.
The battery polarity detection unit can realize the reverse connection protection function, when the negative electrode output end P-is reversely connected with an external battery, the voltage signal detected by the battery voltage detection end (I_ADC) is the voltage of the double battery unit plus the voltage of the external battery, and the control unit receives the voltage signal to enable the MOS switch unit to be kept in an off state; only when the negative electrode output end P-is connected with an external storage battery, the control unit can enable the MOS switch unit to enter a conducting state.
In addition, the battery polarity detection unit can also realize the function of automatically switching corresponding output voltage according to the voltage requirement of the external battery. When the negative electrode output end P-is positively connected with an external storage battery, the voltage signal detected by the storage battery voltage detection end (I_ADC) is the voltage of the external storage battery; when the control unit receives that the voltage of the external storage battery is greater than 15V, the automobile is considered to be an automobile with the 24V storage battery, and then the control unit controls the voltage switching unit to enable the first battery BT1 and the second battery BT2 to be connected in series, so that the double-battery unit outputs 24V voltage; when the control unit receives that the voltage of the external storage battery is smaller than 12V, the automobile is considered to be an automobile with the 12V storage battery, and the control unit controls the voltage switching unit to enable the first battery BT1 and the second battery BT2 to be connected in parallel, and further enables the double-battery unit to output 12V voltage.
Referring to fig. 3, the output voltage switching system further includes a MOS switch unit (not shown in the drawing) and a battery voltage detecting unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit;
Specifically, the battery voltage detection unit includes a resistor R8, a resistor R12, and a capacitor C1; one end of the resistor R8 is connected with the positive electrode of the first battery BT1 or the second battery BT2, and the other end of the resistor R12 is connected with one end of the resistor; the other end of the resistor R12 is grounded; one end of the capacitor C1 is connected between the resistor R8 and the resistor R12, and the other end is grounded; the other end of the resistor R8 is electrically connected with the control unit.
The voltage of the first battery BT1 or the second battery BT2 is detected by the battery voltage detection unit, a voltage signal is transmitted to the control unit, and when the voltage signal received by the control unit is smaller than the rated voltage of the first battery BT1 or the second battery BT2, the control unit enables the MOS switch unit to keep an off state, so that the undervoltage protection function is realized.
In another embodiment, the battery voltage detecting units are provided in two, and the first battery BT1 and the second battery BT2 are respectively under-voltage protected.
The emergency starting power supply disclosed by the embodiment comprises the output voltage switching system.
The output voltage switching system is applied to an emergency starting power supply, the system can automatically adjust the output voltage according to the voltage requirements of different vehicles or built-in storage batteries, and can meet the requirements of different voltages such as 12V and 24V, so that the problems that in the traditional design, the cost is increased, the product weight and the space occupation are increased or two groups of identical cell modules are connected in series, the voltage difference between the two groups of cell modules caused by different interfaces is larger and larger, the service life is reduced and the like due to the fact that the two groups of cell modules with different voltages are adopted are avoided.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. An output voltage switching system, comprising:
A double battery unit for outputting a voltage, the double battery unit including the same first battery BT1 and second battery BT2;
The voltage switching unit is used for switching the output voltage of the double battery units and comprises a first switch assembly, a second switch assembly and a third switch assembly;
a control unit for controlling the voltage switching unit;
The first switch component is respectively connected with the first battery BT1 and the second battery BT2 in parallel, the second switch component is connected in series between the positive electrode of the first battery BT1 and one end of the first switch component, and the third switch component is connected in series between the negative electrode of the second battery BT2 and the other end of the first switch component;
The second switch component and the third switch component are switched together, and the first switch component is opposite to the second switch component and the third switch in switch state;
the positive electrode of the first battery BT1 is used as a positive electrode output end P+ of the double battery unit, and the negative electrode of the second battery BT2 is used as a negative electrode output end P-of the double battery unit;
The output voltage switching system further comprises an MOS switch unit and a battery polarity detection unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit; the battery polarity detection unit comprises a capacitor C27, a capacitor C40, a resistor R43, a resistor R47, a resistor R57 and a resistor R80; the capacitor C40, the capacitor C27, the resistor R43 and the resistor R47 are sequentially connected in series, the resistor R80 is connected with the capacitor C40 in parallel, the resistor R57 is connected with the capacitor C27 in parallel, and one end, connected with the capacitor C40, the capacitor C27, the resistor R57 and the resistor R80, is grounded; the negative electrode output end P-is connected between the resistor R43 and the resistor R47, the connection point of the capacitor C27, the resistor R43 and the resistor R57 is a battery voltage detection end, and the battery voltage detection end is electrically connected with the control unit;
When the negative electrode output end P-is positively connected with an external storage battery, a voltage signal detected by a storage battery voltage detection end is the voltage of the external storage battery, and when the voltage of the external storage battery is received by a control unit and is larger than 15V, the second switch assembly and the third switch are controlled to be turned on and the first switch assembly is controlled to be turned off; when the control unit receives that the voltage of the external storage battery is smaller than 12V, the second switch component and the third switch are controlled to be turned off, and the first switch component is controlled to be turned on;
The first switch assembly comprises a relay K1 coil, a relay K2 coil and a diode D2 which are connected in parallel, the cathode of the diode D2 is connected with a voltage VCC, the first switch assembly further comprises a relay K1 switch and a relay K2 switch which are connected in parallel, and the relay K1 switch and the relay K2 switch are connected in parallel with the first battery BT1 and the second battery BT2 respectively;
The second switch assembly comprises a relay K3 coil, a relay K4 coil and a diode D3 which are connected in parallel, the cathode of the diode D3 is connected with a voltage VCC, the second switch assembly also comprises a relay K3 switch and a relay K4 switch which are connected in parallel, and the relay K3 switch and the relay K4 switch are connected in series between the positive electrode of the first battery BT1 and one end of the first switch assembly;
The third switch assembly comprises a relay K5 coil, a relay K6 coil and a diode D1 which are connected in parallel, the cathode of the diode D1 is connected with a voltage VCC, the anode of the diode D1 is connected with the anode of the diode D3, the third switch assembly further comprises a relay K5 switch and a relay K6 switch which are connected in parallel, and the relay K5 switch and the relay K6 switch are connected in series between the cathode of the second battery BT2 and the other end of the first switch assembly.
2. The output voltage switching system according to claim 1, wherein the rated voltage of each of the first battery BT1 and the second battery BT2 is 12V.
3. The output voltage switching system according to claim 1, further comprising a MOS switch unit and a battery voltage detection unit; the MOS switch unit is used for switching on or switching off the output of the negative electrode output end P-and is controlled by the control unit;
The battery voltage detection unit comprises a resistor R8, a resistor R12 and a capacitor C1; one end of the resistor R8 is connected with the positive electrode of the first battery BT1 or the second battery BT2, and the other end of the resistor R12 is connected with one end of the resistor; the other end of the resistor R12 is grounded; one end of the capacitor C1 is connected between the resistor R8 and the resistor R12, and the other end is grounded; the other end of the resistor R8 is electrically connected with the control unit.
4. An emergency start-up power supply comprising the output voltage switching system of any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063240.XA CN117595459B (en) | 2024-01-17 | 2024-01-17 | Output voltage switching system and emergency starting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063240.XA CN117595459B (en) | 2024-01-17 | 2024-01-17 | Output voltage switching system and emergency starting power supply |
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| CN117595459A CN117595459A (en) | 2024-02-23 |
| CN117595459B true CN117595459B (en) | 2024-05-28 |
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| CN202410063240.XA Active CN117595459B (en) | 2024-01-17 | 2024-01-17 | Output voltage switching system and emergency starting power supply |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522916A (en) * | 2013-10-31 | 2014-01-22 | 济南宏昌车辆有限公司 | Double power sources switching control system of electric car |
| CN106936179A (en) * | 2017-01-22 | 2017-07-07 | 湖南电将军新能源有限公司 | A kind of imput output circuit for automobile starting power supply |
| CN210167850U (en) * | 2019-06-28 | 2020-03-20 | 深圳市锦丰泰科技有限公司 | Emergency power supply capable of outputting multiple voltages |
| CN112134348A (en) * | 2020-10-14 | 2020-12-25 | 江苏汇裕科技有限公司 | Emergency starting power supply |
| CN212353880U (en) * | 2020-06-04 | 2021-01-15 | 深圳市集芯源电子科技有限公司 | 12V and 24V automatic switching circuit for automobile ignition |
| CN112821504A (en) * | 2021-02-01 | 2021-05-18 | 深圳市南霸科技有限公司 | Emergency starting power supply |
| CN214412365U (en) * | 2021-04-01 | 2021-10-15 | 冯天成 | Simple battery series-parallel connection switching structure |
-
2024
- 2024-01-17 CN CN202410063240.XA patent/CN117595459B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522916A (en) * | 2013-10-31 | 2014-01-22 | 济南宏昌车辆有限公司 | Double power sources switching control system of electric car |
| CN106936179A (en) * | 2017-01-22 | 2017-07-07 | 湖南电将军新能源有限公司 | A kind of imput output circuit for automobile starting power supply |
| CN210167850U (en) * | 2019-06-28 | 2020-03-20 | 深圳市锦丰泰科技有限公司 | Emergency power supply capable of outputting multiple voltages |
| CN212353880U (en) * | 2020-06-04 | 2021-01-15 | 深圳市集芯源电子科技有限公司 | 12V and 24V automatic switching circuit for automobile ignition |
| CN112134348A (en) * | 2020-10-14 | 2020-12-25 | 江苏汇裕科技有限公司 | Emergency starting power supply |
| CN112821504A (en) * | 2021-02-01 | 2021-05-18 | 深圳市南霸科技有限公司 | Emergency starting power supply |
| CN214412365U (en) * | 2021-04-01 | 2021-10-15 | 冯天成 | Simple battery series-parallel connection switching structure |
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| Publication number | Publication date |
|---|---|
| CN117595459A (en) | 2024-02-23 |
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