CN218040889U - Double-input power supply adapter - Google Patents
Double-input power supply adapter Download PDFInfo
- Publication number
- CN218040889U CN218040889U CN202222274531.2U CN202222274531U CN218040889U CN 218040889 U CN218040889 U CN 218040889U CN 202222274531 U CN202222274531 U CN 202222274531U CN 218040889 U CN218040889 U CN 218040889U
- Authority
- CN
- China
- Prior art keywords
- power supply
- alternating current
- power
- lithium battery
- module
- 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
Images
Abstract
The utility model relates to the technical field of double power supply, in particular to a double-input power supply adapter, which comprises an AC/DC module, a DC/DC module, a power supply module and a power supply module, wherein the AC/DC module is used for converting the accessed alternating current into stable direct current voltage to supply power for the two DC-DC modules at the rear end and simultaneously charge a battery pack; the lithium battery is integrated with a protection plate for overcharge, overdischarge and overtemperature protection and is used for outputting 20-29.4V of direct-current voltage; and the switching module is used for preferentially using alternating current power supply when the alternating current power supply and the storage battery are simultaneously input, and automatically switching to the storage battery power supply to output direct current voltage when the alternating current power supply is closed or fails. The utility model can charge the lithium battery, and the lithium battery can supply power to the power supply; when alternating current power supply and the lithium battery are input simultaneously, alternating current is preferentially used for supplying power to the power supply, and meanwhile, the power supply can charge the lithium battery; when the alternating current power supply is closed or fails, the lithium battery is automatically switched to supply power to the power supply, so that the output voltage of the power supply is stable, and continuous power supply is provided for the system.
Description
Technical Field
The utility model relates to a two power supply technical field, concretely relates to dual input power adapter.
Background
The power supply of the user system is provided by a recorder power supply (hereinafter referred to as power supply) module, the power supply is double power supply (a alternating current power supply; b lithium battery power supply), the power supply and the lithium battery are two independent modules, the two modules are simultaneously inserted into a power supply slot position and a lithium battery slot position in a backboard of the user system, the power supply voltage is provided for the system through the backboard power supply, and meanwhile, the battery pack can be charged; when the 220VAC alternating current power supply of the power supply is closed or fails, the lithium battery is automatically switched to provide power supply voltage for the power supply, so that the output voltage of the power supply is stable, and continuous power supply is provided for the system.
The recorder power supply is double power supply (a is supplied with alternating current and b is supplied with power by a battery pack), alternating current 220V is supplied with power to the power supply through the backboard, the power supply and the lithium battery are connected through a power supply slot position and a lithium battery slot position in the backboard, the power supply can charge the lithium battery, and the lithium battery can supply power to the power supply; when alternating current power supply and the lithium battery are input simultaneously, alternating current is preferentially used for supplying power to the power supply, and meanwhile, the power supply can charge the lithium battery; the lithium battery is used as a power supply standby power supply to provide output backup for the whole system, and when the alternating current power supply is closed or fails, the lithium battery is automatically switched to supply power for the power supply, so that the output voltage of the power supply is stable, and continuous power supply is provided for the system.
SUMMERY OF THE UTILITY MODEL
To prior art's not enough, the utility model discloses a dual input power supply adapter for when alternating current power supply and direct current input simultaneously, the preferred alternating current that uses is mains operated, when alternating current power supply closed or trouble, automatic switch-over becomes the direct current and is mains operated, guarantees that power output voltage is stable, provides the power supply of continuity for the system.
The utility model discloses a following technical scheme realizes:
the utility model provides a dual input power supply adapter, include
The AC/DC module is used for converting the accessed alternating current into stable direct current voltage to supply power to the two rear-end DC-DC modules and simultaneously charge the battery pack;
the lithium battery is integrated with a protection board for overcharge, overdischarge and over-temperature protection and is used for outputting 20-29.4V direct current voltage;
and the switching module is used for preferentially using alternating current power supply when the alternating current power supply and the storage battery are simultaneously input, and automatically switching to the storage battery power supply to output direct current voltage when the alternating current power supply is closed or fails.
Furthermore, the two rear-end DC-DC modules supply power and are used for charging the battery pack and respectively outputting stable direct-current voltage.
Furthermore, the AC/DC module adopts a cascading power conversion topology.
Furthermore, the first stage of the power conversion topology adopts CCM PFC to keep the input voltage of the second stage constant.
Furthermore, the second stage of the power conversion topology adopts a half-bridge LLC soft switch isolation structure to regulate the output voltage.
Furthermore, the second stage of the power conversion topological structure adopts a Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) device as a synchronous rectifying device to control the output voltage.
Furthermore, the lithium battery consists of a battery core and a protection plate.
Furthermore, the lithium battery outputs 20-29.4V of direct current voltage through the protection board.
The beneficial effects of the utility model are that:
the utility model discloses a power and lithium cell pass through power trench and lithium cell trench interface in the backplate, and the power both can be for lithium cell charging, and the lithium cell can be for power supply again; when alternating current power supply and the lithium battery are input simultaneously, alternating current is preferentially used for supplying power to the power supply, and meanwhile, the power supply can charge the lithium battery; the lithium battery is used as a power supply standby power supply to provide output backup for the whole system, and when the alternating current power supply is turned off or fails, the lithium battery is automatically switched to supply power for the power supply, so that the output voltage of the power supply is stable, and continuous power supply is provided for the system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 is a schematic diagram of an embodiment of the power board of the present invention;
fig. 2 is a schematic block diagram of a design of a lithium battery 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 will be clearly and completely described below with reference to the accompanying 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 embodiment provides a dual-input power supply adapter, which comprises an AC/DC module, a power supply module and a power supply module, wherein the AC/DC module is used for converting an accessed alternating current into a stable direct current voltage to supply power to two rear-end DC-DC modules and simultaneously charge a battery pack; the lithium battery is integrated with a protection plate for overcharge, overdischarge and overtemperature protection and is used for outputting 20-29.4V of direct-current voltage; and the switching module is used for preferentially using alternating current power supply when the alternating current power supply and the storage battery are simultaneously input, and automatically switching to the storage battery power supply to output direct current voltage when the alternating current power supply is closed or fails.
In specific implementation, referring to fig. 1, the embodiment provides a power supply design scheme, in which a power supply board provides dual power supplies (a, AC, and b, battery pack power supplies) to provide power for a multi-unit server, so as to implement AC-DC conversion/DC-DC conversion functions. The power panel is used for converting 220V of alternating current input voltage or 20-32 VDC of direct current input into 12V direct current voltage required by each module and supplying power to the main board, the exchange board, the management board and the timing system board. Meanwhile, the power panel has protection functions of overvoltage, overcurrent, overheat and the like, and the output power of the power module is not less than 432W.
In this embodiment, 220V AC is input to the power panel through the VPX backplane, and supplies power to the AC/DC module through the EMC filter circuit, the AC/DC module converts the stable DC voltage to supply power to the two rear-end DC-DC modules, and charges the battery pack, and the two modules output stable DC voltage of 12V, respectively.
In the embodiment, when the alternating current power supply and the storage battery are simultaneously input, the alternating current power supply is preferentially used, and meanwhile, the battery pack can be charged; the battery pack is used as a power supply standby power supply to provide output backup for the whole system, and when the alternating current power supply is closed or fails, the battery pack is automatically switched into a storage battery to supply power, so that direct current voltage can be output, and continuous power supply for the system is guaranteed.
The AC/DC module design is carried out in the embodiment, the power module adopts aviation aluminum materials to carry out shell encapsulation, and high-thermal-conductivity silica gel is adopted inside to carry out sealing and filling so as to ensure normal operation in a harsh environment. The innovative hexahedral metal package ensures that the module has better interference resistance in a complex electromagnetic environment.
The AC/DC module of this embodiment adopts a cascaded power conversion topology. The first stage adopts CCM PFC to keep the input voltage of the second stage constant; and the second stage adopts a half-bridge LLC soft switch isolation structure to regulate the output voltage. The module adopts a flat transformer structure, namely a ferrite magnetic core and a PCB internal winding are combined into a power transformer structure, and the power transformer has the outstanding advantages of high power density, small leakage inductance, excellent EMI performance and the like.
In the embodiment, the secondary side of the AC/DC module adopts a Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) device with power consumption far smaller than that of a diode as a synchronous rectifying device to control output voltage, and the device has very low on-resistance, so that the module has very high conversion efficiency under the condition of outputting low voltage and large current.
The AC/DC module of the embodiment adopts a full encapsulation form, and can bear harsh environment and heat dissipation requirements. Because the module has very low power consumption, no additional radiating fin is needed in the low-power application of the normal temperature environment, and the thermal attenuation and the protection effect of the module are improved by additionally arranging an external radiator under extreme conditions (in the high-temperature environment and the high-power application).
Referring to fig. 2, this embodiment provides a design scheme of a lithium battery, where the lithium battery mainly supplies power to a power supply, and the power supply unexpectedly charges the lithium battery, and the lithium battery is composed of a battery cell and a protection board, and adopts a 7S1P battery cell, the battery cell outputs 20-29.4V of dc voltage through the protection board, and the protection board has protection functions such as overcharge, overdischarge, and over-temperature.
The lithium battery of the embodiment is designed according to the principle: according to the technical requirements of lithium batteries: the calculated energy of the duration 432W is 432 multiplied by 10S =1.2Wh, when the duration 432W works, the maximum discharge current of the lithium battery is 20.3A, the energy of the single battery cell is 7.2Wh, the scheme adopts a 7S1P battery cell, and the direct-current voltage of 20-29.4V is output through the protection board to provide voltage for the power supply.
The main parameters of the power supply of the recorder in the embodiment are as follows:
a) The alternating current input voltage is 220VAC +/-10%, and the input frequency is 50-60 Hz;
b) The direct current input voltage is 20-32 VDC;
c) The rated power of the single power supply is not less than 432W, and the single power supply supports not less than +12V 36A (the output voltage ripple is less than or equal to 120 mV);
g) The device has the functions of outputting overvoltage, undervoltage and short-circuit protection;
h) Has the function of overheat protection;
i) The input end and the output end are isolated;
the main parameters of the lithium battery in the embodiment are as follows:
a) Capacity 2000mAh;
b) The working voltage is 20-29.4 VDC;
c) The endurance time is output to be 432W, and the time is more than 10S at normal temperature;
g) Has the functions of over charge, over discharge and over temperature protection.
To sum up, the power supply and the lithium battery of the utility model can charge the lithium battery and the lithium battery can supply power to the power supply through the power supply slot position and the lithium battery slot position interface in the backboard; when alternating current power supply and the lithium battery are input simultaneously, alternating current is preferentially used for supplying power to the power supply, and meanwhile, the power supply can charge the lithium battery; the lithium battery is used as a power supply standby power supply to provide output backup for the whole system, and when the alternating current power supply is closed or fails, the lithium battery is automatically switched to supply power for the power supply, so that the output voltage of the power supply is stable, and continuous power supply is provided for the system.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; 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 (8)
1. A dual-input power supply adapter is characterized by comprising
The AC/DC module is used for converting the accessed alternating current into stable direct current voltage to supply power to the two rear-end DC-DC modules and simultaneously charge the battery pack;
the lithium battery is integrated with a protection board for overcharge, overdischarge and over-temperature protection and is used for outputting 20-29.4V direct current voltage;
and the switching module is used for preferentially using alternating current power supply when the alternating current power supply and the storage battery are simultaneously input, and automatically switching to the storage battery power supply to output direct current voltage when the alternating current power supply is closed or fails.
2. The dual-input power adapter as claimed in claim 1, wherein the two back-end DC-DC modules supply power for charging the battery pack and respectively outputting stable DC voltages.
3. The dual-input power adapter as claimed in claim 1, wherein the AC/DC module employs a cascaded power conversion topology.
4. The dual-input power adapter of claim 3, wherein the power conversion topology first stage employs CCM PFC to keep the second stage input voltage constant.
5. The dual-input power adapter of claim 3, wherein the second stage of the power conversion topology employs a half-bridge LLC soft switch isolation structure to regulate the output voltage.
6. The dual-input power adapter as claimed in claim 5, wherein the second stage of the power conversion topology employs MOSFETs devices as synchronous rectification devices to control the output voltage.
7. The dual-input power adapter as claimed in claim 1, wherein the lithium battery is composed of a battery core and a protection board.
8. The dual-input power adapter as claimed in claim 7, wherein the lithium battery outputs a dc voltage of 20-29.4V through the protection board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274531.2U CN218040889U (en) | 2022-08-29 | 2022-08-29 | Double-input power supply adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274531.2U CN218040889U (en) | 2022-08-29 | 2022-08-29 | Double-input power supply adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218040889U true CN218040889U (en) | 2022-12-13 |
Family
ID=84352070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222274531.2U Active CN218040889U (en) | 2022-08-29 | 2022-08-29 | Double-input power supply adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218040889U (en) |
-
2022
- 2022-08-29 CN CN202222274531.2U patent/CN218040889U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Interleaved high-conversion-ratio bidirectional DC–DC converter for distributed energy-storage systems—circuit generation, analysis, and design | |
| WO2021232785A1 (en) | Three-bridge arm topology apparatus, control method, and uninterrupted power supply system | |
| TW200410471A (en) | Uninterruptible power system | |
| CN208386212U (en) | A kind of uninterruptible power supply | |
| Wu et al. | Design and development of dc-distributed system with grid connection for residential applications | |
| CN211089487U (en) | High-voltage direct-current remote power supply system of 5G base station | |
| WO2021232749A1 (en) | Three-bridge-arm topological device and uninterrupted power supply system | |
| Ryu et al. | Test bed implementation of 380V DC distribution system using isolated bidirectional power converters | |
| CN111049222A (en) | Power supply device | |
| CN115136443A (en) | Three-bridge-arm topology device, control method, inversion system and uninterruptible power supply system | |
| Chiu et al. | Design and implementation of a high‐efficiency bidirectional DC‐DC Converter for DC micro‐grid system applications | |
| CN208571618U (en) | A kind of battery energy storage system of Multiple coil resonance separate current control | |
| CN218040889U (en) | Double-input power supply adapter | |
| CN211266526U (en) | Power supply device | |
| CN205622244U (en) | Power supply access device | |
| CN113725928B (en) | Household alternating current-direct current hybrid bidirectional electric energy interaction energy router and energy scheduling method | |
| Kuo et al. | A high-performance bidirectional DC-DC converter for DC micro-grid system application | |
| CN217469524U (en) | Charging circuit and energy storage power supply | |
| KR20080032839A (en) | Multifunctional on-line uninterruptible power supply by common dc power | |
| WO2023155325A1 (en) | Energy storage system | |
| CN203339786U (en) | Portable emergency power box | |
| CN217656559U (en) | DC-DC converter | |
| CN216720960U (en) | Energy storage power supply | |
| CN212137358U (en) | Quick charging circuit architecture | |
| CN216413981U (en) | Portable power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |