CN219812004U - Emergency switching power supply device - Google Patents
Emergency switching power supply device Download PDFInfo
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- CN219812004U CN219812004U CN202322406512.5U CN202322406512U CN219812004U CN 219812004 U CN219812004 U CN 219812004U CN 202322406512 U CN202322406512 U CN 202322406512U CN 219812004 U CN219812004 U CN 219812004U
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Abstract
The utility model provides an emergency switching power supply device, which relates to the field of switching power supplies and comprises a shell, an MCU, a power supply module, a USB module and a switching module; the power supply module comprises a power supply output module, and the power supply output module is arranged on the shell and connected with the MCU through a second relay to supply power to the controlled equipment; the USB module comprises a photoelectric coupling switch and a USB interface, wherein the photoelectric coupling switch is arranged in the shell, one end of the photoelectric coupling switch is connected with the MCU, the other end of the photoelectric coupling switch is connected with a power contact of the USB interface, and the USB interface is arranged on the shell and is used for being connected with controlled equipment through a USB connecting wire; the switch module comprises a second relay and a switch contact, wherein the second relay is arranged in the shell, one end of the second relay is connected with the MCU, the other end of the second relay is connected with the switch contact, and the switch contact is arranged on the shell and used for being connected with the switch contact of the controlled equipment. When the power supply of the controlled equipment is disconnected, the controlled equipment is firstly turned off, and then the power supply is disconnected.
Description
Technical Field
The utility model relates to the field of switching power supplies, in particular to an emergency switching power supply device.
Background
The intelligent switching power supply is an electronic device, is used for controlling the switching state of the power supply, and can be controlled manually or automatically to realize the on and off of the power supply. In the prior art, the intelligent switch power supply generally controls the on-off of the power supply output module through the relay so as to realize the on-off control of the controlled terminal, however, the on-off of the power supply directly performed by the IT intelligent equipment (such as a computer and the like) is not considered in the mode, so that the problems of data loss, abnormal error reporting of an operating system and the like are caused. In addition, when the intelligent switching power supply has abnormal power supply, the intelligent equipment of the IT class can be directly powered off, so that the problems of data loss, abnormal error reporting of an operating system and the like are caused.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model aims to provide an emergency switching power supply device so as to solve the problems that the existing intelligent switching power supply can cause data loss and abnormal error reporting of an operating system of an IT intelligent device.
In order to achieve the above object, the present utility model provides an emergency switching power supply device, including a housing, an MCU, a power module, a USB module, and a switch module;
the power supply module comprises a first power supply input module, a second power supply input module, a first relay, a second relay and a power supply output module, wherein the first power supply input module and the second power supply input module are connected with the input end of the first relay, the output end of the first relay is connected with the input end of the second relay, the output end of the second relay is connected with the power supply output module, the first relay and the second relay are further connected with the MCU, the first relay is used for realizing emergency switching of the first power supply input module and the second power supply input module, and the power supply output module is arranged on the shell and is used for being electrically connected with controlled equipment to supply power to the controlled equipment;
the USB module comprises a photoelectric coupling switch and a USB interface, the photoelectric coupling switch is arranged in the shell, one end of the photoelectric coupling switch is connected with the MCU, the other end of the photoelectric coupling switch is connected with a power contact of the USB interface, and the USB interface is arranged on the shell and is used for being connected with controlled equipment through a USB connecting wire;
the switch module comprises a third relay and a switch contact, wherein the third relay is arranged in the shell, one end of the third relay is connected with the MCU, the other end of the third relay is connected with the switch contact, and the switch contact is arranged on the shell and used for being connected with the switch contact of the controlled equipment.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an emergency switching power supply device which is connected with controlled equipment through a power supply module, a USB module and a switch module; the power module supplies power to the controlled equipment, and the on-off of the power module is controlled through the second relay; the power supply module has an emergency switching function, and when the first power supply input module fails, the first relay can be switched to the second power supply input module to carry out standby power supply; the USB module is connected with the controlled equipment through a USB connecting wire, and the on-off state of the controlled equipment is detected through a power contact on a USB interface; the switch module is connected with the on-off contact of the controlled equipment, and remote control of on-off of the controlled equipment is realized through the on-off of the third relay; when the power supply of the controlled equipment needs to be disconnected, the controlled equipment can be firstly closed through the switch module, and when the USB module detects that the controlled equipment is powered off, the power supply module is disconnected, so that the problem that the intelligent equipment is abnormal due to the fact that the existing intelligent switch power supply is directly powered on and powered off through the power supply to enable the IT intelligent equipment to be powered on or off is solved.
Additional aspects of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic structural diagram of an emergency switching power supply device provided by the utility model.
The power supply comprises a shell, 2, an MCU (micro control unit), 3, a first power input module, 4, a switching power supply module, 5, a power output module, 6, a first relay, 7, a USB interface, 8, a photoelectric coupling switch, 9, a third relay, 10, a switch contact, 11, a current transformer, 12, a network module, 1201, a LAN interface, 1202, a WAN interface, 1203, a WiFi antenna interface, 13, a real-time clock module, 14, a data interface, 15, a reset button, 16, a work indicator lamp, 17, a second power input module, 18 and a second relay.
Detailed Description
The present utility model will be further described with reference to the drawings and the detailed description below, in order to enable those skilled in the art to better understand the technical solutions of the present utility model.
As shown in fig. 1, the utility model provides an emergency switching power supply device, which comprises a shell 1, an MCU2, a power module, a USB module and a switch module;
the power module comprises a first power input module 3, a second power input module 17, a first relay 6, a second relay 18 and a power output module 5, wherein the first power input module 3 and the second power input module 17 are respectively connected to the input end of the first relay 6, the output end of the first relay 6 is connected with the input end of the second relay 18, the output end of the second relay 18 is connected with the power output module 5, the first relay 6 and the second relay 18 are also connected with the MCU2, the first relay 6 is used for realizing emergency switching of the first power input module 3 and the second power input module 17, and the power output module 5 is arranged on the shell 1 and is used for being electrically connected with controlled equipment to supply power to the controlled equipment;
the USB module comprises a photoelectric coupling switch 8 and a USB interface 7, wherein the photoelectric coupling switch 8 is arranged in the shell 1, one end of the photoelectric coupling switch 8 is connected with the MCU2 arranged in the shell 1, the other end of the photoelectric coupling switch is connected with a power contact of the USB interface 7, and the USB interface 7 is arranged on the shell 1 and is used for being connected with controlled equipment through a USB connecting wire;
the switch module comprises a third relay 9 and a switch contact 10, wherein the third relay 9 is arranged in the shell 1, one end of the third relay 9 is connected with the MCU2, the other end of the third relay is connected with the switch contact 10, and the switch contact 10 is arranged on the shell 1 and used for being connected with the switch contact of the controlled equipment.
The intelligent switch power supply in the prior art is generally provided with a power supply module, the controlled equipment is connected with the power supply module through a power line, the power supply module can provide 0-220V power for the controlled equipment, and the on-off of the power supply module is controlled through a relay arranged on the power supply module. When the controlled module needs to be closed, the MCU in the intelligent switching power supply is used for controlling the contact of the relay to be disconnected, so that the output of the power supply module is disconnected, and the controlled equipment is powered off and closed; when the controlled module needs to be started, the MCU in the intelligent switching power supply controls the contact of the relay to be closed, the power supply module outputs set voltage, and the controlled equipment is powered on.
However, in the prior art, the problems of data loss, abnormal error reporting of an operating system and the like caused by direct power on-off of the IT intelligent equipment (such as a computer) are not considered, and when the IT intelligent equipment needs to be powered off, a power-off instruction of the equipment needs to be executed first, and then the power supply is disconnected, but the existing intelligent switch power supply does not integrate the functions.
Based on this, in order to ensure stable operation of the IT intelligent device, this embodiment proposes that a USB module and a switch module are additionally provided in the device, where the USB module is connected to the controlled device through a USB connection line, and when the controlled device is turned on, since two left and right power contacts in the USB interface have output levels, the current on-off state of the controlled device can be determined by detecting the output levels; the switch module is connected with the on-off contact of the controlled equipment, and the on-off control of the equipment can be realized through the switch module.
In addition, in order to avoid power supply abnormality of controlled equipment caused by faults such as sudden power failure, the emergency change-over switching power supply device in the embodiment is provided with a first power supply input module, a second power supply input module and a first relay, wherein the first power supply input module is connected with a normal power supply circuit and supplies power for the device in normal operation, the second power supply input module is connected with a standby circuit and is used for carrying out emergency power supply for the device when the normal power supply circuit is abnormal, and the first relay is used for realizing switching of the first power supply input module and the second power supply input module.
Specifically, the power supply modules include a first power supply input module 3, a second power supply input module 17, a switching power supply module 4, a power supply output module 5, a first relay 6, and a second relay 18.
The first power input module 3 and the second power input module 17 are both arranged on one side of the shell 1, the first power input module 3 is connected with an external power source (normal power supply circuit) through a power line and is used for supplying power to the emergency switching power supply device and the controlled equipment during normal operation, and the second power input module 17 is connected with an external emergency power source (standby circuit) through the power line and is used for supplying power to the emergency device when the input of the first power input module 3 is abnormal.
The switching power supply module 4 converts the input high-voltage alternating current into low-voltage direct current to supply power to each electronic device (not shown in the figure) in the emergency switching power supply device, the input end of the switching power supply module 4 is connected with the first power supply input module 3 and the second power supply input module 17, and the output end of the switching power supply module 4 is connected with each electronic device in the emergency switching power supply device.
The power output module 5 is arranged on the other side of the shell 1, and the power output module 5 is connected with the first power input module 3 and the second power input module 17 through the first relay 6 and the second relay 18.
The first relay 6 is a single-pole double-throw relay, the input end of the first relay 6 is provided with a normally open contact and a normally closed contact, the first relay 6 can be respectively connected with the first power input module 3 and the second power input module 17, the output end of the first relay 6 is connected with the input end of the second relay 18, and the control coil of the first relay 6 is also connected with the MCU2 and controlled by the MCU2.
The second relay 18 is used for realizing the control of the on-off of the power output module 5, and the control coil of the second relay 18 is also connected with the MCU2 and controlled by the MCU2.
The pin of the MCU2 is connected with the control coil of the first relay 6, when the normally open contact of the first relay 6 needs to be connected, the pin connected with the positive electrode of the control coil of the MCU2 outputs a high level, the pin connected with the negative electrode of the control coil of the MCU2 outputs a low level, the control coil is electrified, and the normally open contact is closed; when the normally open contact of the first relay 6 needs to be opened, the MCU2 and the control coil are connected with two pins to output low level, at the moment, the control coil is powered off, the normally open contact is opened, and the normally closed contact is closed. Similarly, the on-off of the second relay 18 can also be controlled by the MCU2.
The first relay 6 is used for realizing the switching of the first power input module 3 and the second power input module 17, and the second relay 18 is used for realizing the control of the on-off of the power output module 5.
The on-off of the relay control circuit is in the prior art, and the description is given here by taking the connection of the first power input module 3 with the normally open contact of the first relay 6, the connection of the second power input module 17 with the normally closed contact of the first relay 6, and the connection of the normally open contact of the second relay 18 with the output end of the first relay 6 as an example. Under the normal operation condition, the control coils of the first relay 6 and the second relay 18 are powered on, the normally open contacts of the first relay 6 and the second relay 18 are closed, and the first power input module 3 is communicated to the power output module 5 through the normally open contacts of the first relay 6 and the second relay 18, so that external power supply of the power output module 5 is realized. When the first power input module 3 is abnormal, the MCU2 causes the control coil of the first relay 6 to lose electricity, at the moment, the normally open contact of the first relay 6 is opened, the connection of the first power input module 3 is disconnected, and the normally closed contact of the first relay 6 is closed, and is connected with the second power input module 17 for emergency power supply. When the power supply of the power output module 5 needs to be disconnected, the MCU2 enables the control coil of the second relay 18 to lose electricity, and at the moment, the connection between the first relay 6 and the second relay 18 is disconnected, and the power output module 5 is powered off.
In addition, in some embodiments, the second relay 18 is further provided with a current transformer 11, and the current transformer 11 is disposed on a wire at a connection position of the second relay 18 and the power output module 5, and is used for collecting the working current of the power output module 5, providing a current detection function, and can be used for judging the load condition of the emergency switching power supply device and judging the working condition of the controlled device connected with the emergency switching power supply device. Because the USB module also has the function of judging the on-off state of the controlled equipment, whether the controlled equipment is started up or not can be judged together according to the induction current of the current transformer 11 and the on-off state of the photoelectric coupling switch 8 in the USB module at the moment, so that redundancy judgment is realized, meanwhile, when one of the modules fails, the judgment results of the two modules are inconsistent (if the current transformer 11 has induction current, but the photoelectric coupling switch 8 is disconnected), and the device can be judged to fail at the moment and needs to be maintained in time.
The USB module comprises a photoelectric coupling switch 8 and a USB interface 7, and the USB interface 7 is arranged on the shell 1 and is used for being connected with controlled equipment through a USB connecting wire. The USB interface 7 has 4 side-by-side contacts, of which the middle two are data transmission contacts and the edge two are power contacts. The input end of the photoelectric coupling switch 8 is respectively connected with two power contacts of the USB interface 7, and the output end is connected with the MCU2. When the controlled equipment is in a starting state, the power contact of the USB interface has output voltage, at the moment, the power contact of the USB interface 7 is electrified, the two ends of the input end of the photoelectric coupling switch 8 have potential difference, and the output end of the photoelectric coupling switch 8 is conducted, otherwise, if the controlled equipment is shut down, the output end of the photoelectric coupling switch 8 is disconnected. The on-off state of the controlled equipment can be obtained by judging the on-off state of the output end of the photoelectric coupling switch 8.
The switch module comprises a third relay 9 and a switch contact 10, wherein the switch contact 10 is provided with two contacts which are respectively connected with two ends of the original switch contact of the controlled equipment, namely, the switch module is connected with a physical switch of the controlled equipment in parallel, so that remote switch control of the controlled equipment is realized. The third relay 9 is connected with the switch contact 10, is used for providing a switching-on/off signal, and is controlled by the MCU2.MCU is through the break-make of relay control switch contact belongs to prior art, in some embodiments, can be with the both ends of switch contact be connected to the both ends of the normally open contact of third relay respectively, link to each other with two pins of MCU respectively with third relay control coil, when the controlled equipment is turned on or is shut down to needs control, the pin that MCU and control coil anodal links to each other exports high level, the pin that MCU and control coil negative pole link to each other exports low level, the normally open contact of third relay is closed this moment, the both ends that correspond the original switch contact of controlled equipment switch on, can control controlled equipment to carry out the action of turning on or shutting down.
In addition, in some embodiments, the emergency switching power supply device further includes a network module 12 and a network interface connected to the network module 12, including a LAN interface 1201, a WAN interface 1202, and a WiFi antenna interface 1203. A WiFi antenna is connected to the WiFi antenna interface 1203. The LAN interface 1201, the WAN interface 1202, and the WiFi antenna interface 1203 are provided on the housing 1. The network module 12 is connected with the MCU2, controlled by the MCU, and connected with an external control terminal by wire or wirelessly through the LAN interface 1201, the WAN interface 1202 and the WiFi antenna interface 1203 for realizing remote control and data transmission functions. The network module is also reserved with GSM and 5G module positions to provide a data transmission channel, and in actual use, a corresponding communication module and an antenna interface can be set according to actual requirements.
In some embodiments, a real-time clock module 13 is further disposed in the emergency switching power supply device, and the real-time clock module 13 is connected to the MCU2 and is used for providing accurate time information and providing a timing switch control function for the emergency switching power supply device. In addition, the real-time clock module 13 is further connected with a capacitor set, so that when the power is off, the power supply for the real-time clock module 13 is continuously provided, and the continuous operation of the timing function is ensured.
In some embodiments, a data interface 14 is further arranged in the emergency switching power supply device, and the data interface 14 is connected with the MCU2 and the USB interface 7, and is used for implementing data exchange with external equipment through the USB interface by means of a data transmission contact on the USB interface.
The shell 1 of the emergency switching power supply device is also provided with a reset button 15 and a working indicator lamp 16, and the reset button 15 and the working indicator lamp 16 are connected with the MCU. The reset button 15 is used for pressing the button when the reset is needed, the MCU executes the reset function, and other control programs can be preset in the MCU, that is, after the reset button is pressed by adopting different key manners (short press, long press, etc.), the MCU can execute different operation instructions. The work indicator lamp is an LED lamp and is controlled by the MCU, and is used for indicating different working states of the device through different lamplight colors (such as red, green and the like) and different lighting modes (normally lighting, fast flashing, slow flashing and the like).
The emergency switching power supply device has a control mode of remote control, manual control and timing control. For remote control, an operation platform such as an internet platform or a mobile phone APP console, a tablet APP console and the like is adopted, a WiFi connection mode is adopted to be connected with the device, and the remote control can be realized after the connection is successful. For manual control, manual control can be realized through the reset button 15, and corresponding control programs are prestored in the MCU, and when the reset button is pressed according to the set action, corresponding switching actions are executed. For timing control, timing is realized by the real-time clock module 13, on-off time can be set on the basis of remote control, and on-off action is executed when the set time is reached.
The working principle of the emergency switching power supply device provided by the utility model is as follows:
the power output module 5 of the emergency switching power supply device is connected with a power supply plug of the controlled equipment, the USB interface 7 of the emergency switching power supply device is connected with the USB interface of the controlled equipment through a connecting wire, two contacts of the switch contact 10 of the emergency switching power supply device are respectively connected with the switch contacts at two ends of a switch button of the controlled equipment through wires, the power output module 5 supplies power to the controlled equipment, the switch state of the controlled equipment is obtained through the USB interface 7, and the switch of the controlled equipment is controlled through the switch contact 10; when the controlled equipment needs to be closed, the MCU2 conducts two contacts of the switch contact 10 through the third relay 9, the controlled equipment is closed, after the equipment is closed, the power contact of the USB interface 7 is not electrified, the photoelectric coupling switch 8 is disconnected, and at the moment, the MCU2 closes the power output module 5 through the second relay 18 to finish closing actions; when the controlled equipment needs to be started, the MCU2 starts the power output module 5 through the second relay 18, then the two contacts of the switch contact 10 are conducted through the third relay 9, and the controlled equipment is started, if the MCU2 detects that the photoelectric coupling switch 8 is closed, the starting is successful, and the starting action is completed; when the first power input module 3 has abnormal power supply, the first relay 6 is switched to the second power input module 17 to perform emergency power supply.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An emergency switching power supply device is characterized by comprising a shell, an MCU, a power module, a USB module and a switch module;
the power supply module comprises a first power supply input module, a second power supply input module, a first relay, a second relay and a power supply output module, wherein the first power supply input module and the second power supply input module are connected with the input end of the first relay, the output end of the first relay is connected with the input end of the second relay, the output end of the second relay is connected with the power supply output module, the first relay and the second relay are also connected with the MCU, the first relay is used for realizing emergency switching of the first power supply input module and the second power supply input module, and the power supply output module is arranged on the shell and is used for being electrically connected with controlled equipment to supply power to the controlled equipment;
the USB module comprises a photoelectric coupling switch and a USB interface, the photoelectric coupling switch is arranged in the shell, one end of the photoelectric coupling switch is connected with the MCU, the other end of the photoelectric coupling switch is connected with a power contact of the USB interface, and the USB interface is arranged on the shell and is used for being connected with controlled equipment through a USB connecting wire;
the switch module comprises a third relay and a switch contact, wherein the third relay is arranged in the shell, one end of the third relay is connected with the MCU, the other end of the third relay is connected with the switch contact, and the switch contact is arranged on the shell and used for being connected with the switch contact of the controlled equipment.
2. The emergency switching power supply device according to claim 1, wherein the power supply module further comprises a switching power supply module, the first power supply input module and the second power supply input module are both disposed on one side of the housing, and the power supply output module is disposed on the other side of the housing; the input end of the switching power supply module is connected with the first power supply input module and the second power supply input module, and the output end of the switching power supply module is connected with each electronic device in the device.
3. An emergency switching power supply device according to claim 2, further comprising a current transformer provided on a conductor where said second relay is connected to said power output module.
4. An emergency switching power supply device according to claim 1, wherein the input end of the photoelectric coupling switch is connected to two power contacts of the USB interface, and the output end of the photoelectric coupling switch is connected to the MCU.
5. An emergency switching power supply device according to claim 1, further comprising a network module and a network interface connected to the network module, the network module being connected to the MCU, the network interface being provided on the housing.
6. The emergency switching power supply device according to claim 1, further comprising a real-time clock module, wherein the real-time clock module is connected to the MCU.
7. An emergency switching power supply unit according to claim 6, wherein said real time clock module has a capacitor bank connected thereto.
8. An emergency switching power supply unit according to claim 1, further comprising a data interface, said data interface being connected to said MCU and said USB interface.
9. An emergency switching power supply device according to claim 1, further comprising a reset button disposed on said housing, said reset button being connected to said MCU.
10. The emergency switching power supply device according to claim 1, further comprising an operation indicator lamp provided on the housing, the operation indicator lamp being connected to the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406512.5U CN219812004U (en) | 2023-09-06 | 2023-09-06 | Emergency switching power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406512.5U CN219812004U (en) | 2023-09-06 | 2023-09-06 | Emergency switching power supply device |
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| Publication Number | Publication Date |
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| CN219812004U true CN219812004U (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322406512.5U Active CN219812004U (en) | 2023-09-06 | 2023-09-06 | Emergency switching power supply device |
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| CN (1) | CN219812004U (en) |
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2023
- 2023-09-06 CN CN202322406512.5U patent/CN219812004U/en active Active
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