CN213305029U - Automatic series-parallel switch circuit and device - Google Patents
Automatic series-parallel switch circuit and device Download PDFInfo
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- CN213305029U CN213305029U CN202022283199.7U CN202022283199U CN213305029U CN 213305029 U CN213305029 U CN 213305029U CN 202022283199 U CN202022283199 U CN 202022283199U CN 213305029 U CN213305029 U CN 213305029U
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- electromagnetic switch
- group battery
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- battery pack
- switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an automatic series-parallel switch circuit, the circuit includes first group battery BAT1 and second group battery BAT2, be provided with normally open electromagnetic switch JK1 between first group battery BAT 1's anodal and second group battery BAT 2's the positive pole, be provided with normally open electromagnetic switch JK3 between first group battery BAT 1's the negative pole and second group battery BAT 2's the negative pole, be provided with electromagnetic switch JK2 that electromagnetic switch normally open between first group battery BAT 1's the positive pole and second group battery BAT2 negative pole, second group battery BAT 2's positive pole is to the positive OUT +, first group battery BAT 1's negative pole ground connection, first group battery BAT 1's positive pole is to the positive BAT1 +; the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are all connected with a power supply VD. The utility model discloses an automatic series-parallel switch has realized the automatic selection of MCU system between the parallelly connected and 24V series connection of 12V, is favorable to ensureing equipment safety, extension equipment life.
Description
Technical Field
The utility model belongs to the technical field of power control, in particular to automatic series-parallel connection switch circuit and device.
Background
With the rapid development of the automobile industry, the automobile holding capacity of the world is continuously increased, the requirements of a large number of automobiles for after-sale maintenance, emergency rescue and the like are greatly increased day by day, and the requirements on after-sale services before and after sale are higher and higher. When the automobile battery is seriously insufficient or damaged due to short circuit, if the abnormality is not detected in advance and accurately eliminated, the emergency starting power supply is directly connected in parallel, so that the automobile is not started successfully, the energy of the emergency starting power supply battery is overdischarged, and even permanent damage is caused. Similarly, after the automobile is started successfully, if the automobile charging system is abnormal, the automobile battery is overcharged and dehydrated due to overhigh charging, and the polar plate is heated and aged, so that the automobile battery is directly damaged in severe cases. On the contrary, the charging voltage is too low, so that the automobile battery is in a half full-charge state or a power-loss state for a long time, and the battery can accelerate crystallization and aging of a battery pole plate even the service life of the battery is terminated if the battery is not normally fully charged and maintained for a long time. In the prior art, a circuit for realizing automatic series-parallel connection switch is not provided.
Therefore, an automatic series-parallel switch circuit and an automatic series-parallel switch device are needed to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides an automatic series-parallel switch circuit, the circuit includes first group battery BAT1 and second group battery BAT2, be provided with normally open electromagnetic switch JK1 between first group battery BAT 1's the positive pole and second group battery BAT 2's the positive pole, be provided with normally open electromagnetic switch JK3 between first group battery BAT 1's the negative pole and second group battery BAT 2's the negative pole, be provided with electromagnetic switch JK2 that electromagnetic switch normally open between first group battery BAT 1's the positive pole and second group battery BAT2 negative pole, second group battery BAT 2's positive pole is to the positive pole OUT +, first group battery BAT 1's negative pole ground connection, first group battery BAT 1's positive pole is to the positive pole BAT1 +;
the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are all connected with a power supply VD;
the electromagnetic switch JK1 and the electromagnetic switch JK3 are simultaneously connected with the drain electrode of the MOS tube Q5, the source electrode of the MOS tube Q5 is grounded, and the grid electrode of the MOS tube Q5 is connected with a 12V parallel output control end;
the electromagnetic switch JK2 is connected with the drain electrode of the MOS tube Q6, the source electrode of the MOS tube Q6 is grounded, and the grid electrode of the MOS tube Q6 is connected with the 24V series output control end.
Further, a diode D7 is connected in parallel to the electromagnetic switch JK1, a diode D8 is connected in parallel to the electromagnetic switch JK2, and the cathode of the diode D7 and the cathode of the diode D8 are both connected to a power supply VD.
Further, a resistor R20 is arranged between the gate of the MOS transistor Q5 and the 12V parallel output control end.
Further, a resistor R21 is arranged between the gate of the MOS transistor Q6 and the 24V series output control end.
The utility model also provides an automatic series-parallel switch device, the device includes foretell automatic series-parallel switch circuit.
The utility model discloses an automatic series-parallel switch has realized the automatic selection of MCU system between the parallelly connected and 24V series connection of 12V, is favorable to ensureing equipment safety, extension equipment life.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic diagram of an automatic series-parallel switch circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an automatic series-parallel switch circuit, as shown in fig. 1, the circuit includes first group battery BAT1 and second group battery BAT2, be provided with normally open electromagnetic switch JK1 between first group battery BAT 1's anodal and second group battery BAT 2's the anodal, be provided with normally open electromagnetic switch JK3 between first group battery BAT 1's negative pole and second group battery BAT 2's negative pole, be provided with electromagnetic switch JK2 that electromagnetic switch normally opens between first group battery BAT 1's positive pole and second group battery BAT2 negative pole, second group battery BAT 2's anodal external output positive OUT +, first group battery BAT 1's negative pole ground connection, first group battery BAT 1's anodal external output positive BAT1 +.
The electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are all connected with a power supply VD. The electromagnetic switch JK1 is connected with a diode D7 in parallel, the electromagnetic switch JK2 is connected with a diode D8 in parallel, and the cathode of the diode D7 and the cathode of the diode D8 are both connected with a power supply VD.
The electromagnetic switch JK1 and the electromagnetic switch JK3 are connected with the drain electrode of the MOS tube Q5 at the same time, the source electrode of the MOS tube Q5 is grounded, the grid electrode of the MOS tube Q5 is connected with the 12V parallel output control end, and a resistor R20 is arranged between the grid electrode of the MOS tube Q5 and the 12V parallel output control end.
The electromagnetic switch JK2 is connected with the drain electrode of a MOS tube Q6, the source electrode of a MOS tube Q6 is grounded, the grid electrode of the MOS tube Q6 is connected with a 24V series output control end, and a resistor R21 is arranged between the grid electrode of the MOS tube Q6 and the 24V series output control end.
The utility model also provides an automatic series-parallel switch device, the device includes foretell automatic series-parallel switch circuit.
The embodiment of the utility model provides an in, electromagnetic switch JK1, electromagnetic switch JK2 and electromagnetic switch JK3 are connected with relay control circuit, and relay control circuit detects control module control by the MCU system, and electromagnetic switch JK1, electromagnetic switch JK2 and electromagnetic switch JK3 all adopt high-power relay, and relay control circuit is unified by MCU and is controlled. When a 12V automobile needs to be started, the electromagnetic switch JK1 and the electromagnetic switch JK3 are controlled to be attracted and conducted, and meanwhile the electromagnetic switch JK2 is kept disconnected; when the 24V automobile needs to be started, the electromagnetic switch JK2 is controlled to be pulled in and switched on, and meanwhile, the electromagnetic switch JK1 and the electromagnetic switch JK3 are kept disconnected, so that the two groups of batteries are connected in series to be switched on to output 24V voltage.
The embodiment of the utility model provides a through automatic series-parallel connection switch, realized the automatic selection of MCU system between the parallelly connected and 24V series connection of 12V, be favorable to ensureing equipment safety, extension equipment life.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. An automatic series-parallel switch circuit is characterized by comprising a first battery pack BAT1 and a second battery pack BAT2, wherein a normally open electromagnetic switch JK1 is arranged between the positive electrode of the first battery pack BAT1 and the positive electrode of the second battery pack BAT2, a normally open electromagnetic switch JK3 is arranged between the negative electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, a normally open electromagnetic switch JK2 is arranged between the positive electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, the positive electrode of the second battery pack BAT2 outputs a positive electrode OUT + to the outside, the negative electrode of the first battery pack BAT1 is grounded, and the positive electrode of the first battery pack BAT1 outputs a positive electrode BAT1+ to the outside;
the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are all connected with a power supply VD;
the electromagnetic switch JK1 and the electromagnetic switch JK3 are simultaneously connected with the drain electrode of the MOS tube Q5, the source electrode of the MOS tube Q5 is grounded, and the grid electrode of the MOS tube Q5 is connected with a 12V parallel output control end;
the electromagnetic switch JK2 is connected with the drain electrode of the MOS tube Q6, the source electrode of the MOS tube Q6 is grounded, and the grid electrode of the MOS tube Q6 is connected with the 24V series output control end.
2. The automatic series-parallel switch circuit according to claim 1, wherein the electromagnetic switch JK1 is connected with a diode D7 in parallel, the electromagnetic switch JK2 is connected with a diode D8 in parallel, and the cathode of the diode D7 and the cathode of the diode D8 are both connected with a power supply VD.
3. The automatic series-parallel switch circuit as claimed in claim 1, wherein a resistor R20 is provided between the gate of the MOS transistor Q5 and the 12V parallel output control terminal.
4. The automatic series-parallel switch circuit of claim 1, wherein a resistor R21 is disposed between the gate of the MOS transistor Q6 and the 24V series output control terminal.
5. An automatic series-parallel switching device, characterized in that it comprises an automatic series-parallel switching circuit according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283199.7U CN213305029U (en) | 2020-10-14 | 2020-10-14 | Automatic series-parallel switch circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283199.7U CN213305029U (en) | 2020-10-14 | 2020-10-14 | Automatic series-parallel switch circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213305029U true CN213305029U (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022283199.7U Active CN213305029U (en) | 2020-10-14 | 2020-10-14 | Automatic series-parallel switch circuit and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213305029U (en) |
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2020
- 2020-10-14 CN CN202022283199.7U patent/CN213305029U/en active Active
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