CN220773511U

CN220773511U - Desktop computer host with power-off protection function and desktop computer

Info

Publication number: CN220773511U
Application number: CN202322501423.9U
Authority: CN
Inventors: 魏嘉琦; 关京
Original assignee: Northeast Dianli University
Current assignee: Northeast Electric Power University
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-04-12
Anticipated expiration: 2033-09-14

Abstract

The embodiment of the utility model discloses a desktop computer host with a power-off protection function and a desktop computer, comprising: the power supply is externally connected with alternating current commercial power, the power supply is used for converting the alternating current commercial power into low-voltage direct current and supplying the low-voltage direct current to the host system, and the energy storage battery is supplied to the host system after passing through the DC/DC voltage stabilizer; the first end of the switching module is connected with the power supply, the second end of the switching module is connected with the output end of the DC/DC voltage stabilizer, the third end of the switching module outputs low-voltage direct current to supply to the host system, and the switching module is used for switching the power supply into the storage battery to supply power to the host system after stopping supplying power to the host system. The embodiment of the utility model provides a desktop computer host with a power-off protection function and a desktop computer, and effectively solves the problem that the existing desktop computer has unsaved files due to sudden power-off to users.

Description

Desktop computer host with power-off protection function and desktop computer

Technical Field

The utility model relates to the field of computer products, in particular to a desktop computer host with a power-off protection function and a desktop computer.

Background

The computer is one of the intelligent electronic products indispensable for modern office and study; the desktop computer is an independent and separated computer, is completely and completely independent from other parts, has superior performance and more stable operation compared with a notebook computer and a netbook, and generally has relatively independent equipment such as a host computer, a display and the like, and generally needs to be placed on a computer desk or a special workbench.

The computer is powered, however, the computer may not be powered directly at the normal voltage of 220 volts. The power supply of the computer is internally provided with a transformer which converts the common 220V commercial power into the voltage required by each component of the computer, such as the working voltage of a CPU, which is usually only a few volts. For safety reasons, the computer components (except for the display of course) are generally placed inside the cabinet. The housing of the chassis has a number of buttons such as a power on button, a RESET button (for restarting the computer), etc. Some indicator lights, such as power indicator lights, are on the case when the computer is in operation, and the hard disk indicator lights flash when the hard disk is operated, etc. The floppy drive and the CD-ROM can be directly used at the front end of the case.

However, the desktop computer needs to be externally connected with 220V ac mains supply in the running process, and when the ac mains supply is suddenly powered off, the desktop computer is suddenly turned off, which is called as "dead halt". The crash of the computer can cause poor use experience and even serious consequences for the user, for example, various files, software and the like which are edited but not stored exist in the computer, and huge inconvenience is brought to the work of the user.

In order to solve the above problems, it is needed to provide a desktop host computer and a desktop computer with a power-off protection function, so as to solve the inconvenience caused by sudden power-off of the desktop computer to the user.

Disclosure of Invention

Aiming at the technical problems, the embodiment of the utility model provides a desktop computer host with a power-off protection function and a desktop computer, wherein a secondary battery is added, and the secondary battery is used for supplying power when alternating current commercial power is off, so that the loss caused by unsaved files existing in a user due to sudden halt of the desktop computer is avoided.

A first aspect of an embodiment of the present utility model provides a desktop host with a power-off protection function, including:

the power supply is externally connected with alternating current commercial power, the power supply is used for converting the alternating current commercial power into low-voltage direct current and supplying the low-voltage direct current to the host system, and the storage battery is supplied to the host system after passing through the DC/DC voltage stabilizer;

the first end of the switching module is connected with the power supply, the second end of the switching module (4) is connected with the output end of the DC/DC voltage stabilizer, the third end of the switching module outputs low-voltage direct current to be supplied to the host system, and the switching module is used for switching the power supply into the storage battery to supply power to the host system after stopping supplying power to the host system.

According to the desktop computer host with the power-off protection function, the storage battery is a secondary battery, the power supply is electrically connected with the storage battery, and the power supply converts the alternating-current commercial power into low-voltage direct current and then charges the storage battery.

According to the desktop computer host with the power-off protection function, the host system comprises a CPU, a heat dissipation device, a display card, a memory and a hard disk, and the power supply is respectively and electrically connected with the CPU, the heat dissipation device, the display card, the memory and the hard disk;

the storage battery is electrically connected with the input end of the DC/DC voltage stabilizer, and the output end of the DC/DC voltage stabilizer is electrically connected with the CPU, the heat dissipation device, the display card, the memory and the hard disk respectively.

The desktop computer host with the power-off protection function further comprises an MCU control unit, wherein the MCU control unit is electrically connected with the switching module, and the MCU control unit is used for controlling the switching module to switch the electric connection between the conducted power supply and the host system into the electric connection between the storage battery and the host system.

The desktop computer host with the power-off protection function further comprises a sampling circuit module, wherein the sampling circuit module is electrically connected with the power supply, the sampling circuit module is used for sampling the output voltage of the power supply and transmitting the obtained output voltage to the MCU control unit, and the MCU control unit controls the switching module to switch according to the received output voltage.

According to the desktop computer host with the power-off protection function, the MCU control unit is electrically connected with the storage battery, and the storage battery provides electric energy for the MCU control unit.

The desktop computer host with the power-off protection function further comprises a host case, and the power supply, the storage battery, the DC/DC voltage stabilizer and the switching module are arranged in the host case.

According to the desktop computer host with the power-off protection function, the host case is provided with the starting key, the starting key is electrically connected with the switching module, the starting key is used for controlling the power supply to power on or power off the host system through the switching module, or the starting key is used for controlling the storage battery to power off the host system.

The second aspect of the embodiment of the utility model provides a desktop computer, which comprises the desktop computer host with the power-off protection function and a display screen.

According to the desktop computer, the host system is connected with the display screen, and the host system provides electric energy for the display screen.

Compared with the prior art, the desktop computer host with the power-off protection function and the desktop computer are provided with the standby secondary battery (rechargeable battery), and the secondary battery is used for supplying power when the alternating current commercial power fails to cause power failure, so that the trouble of the existing desktop computer caused by unsaved files due to sudden power failure is effectively solved. Meanwhile, the desktop computer host with the power-off protection function and the desktop computer provided by the utility model strictly control the capacity and the weight of the secondary battery, and the secondary battery can maintain the shorter working time of the desktop computer so as to provide the user with the function of saving relevant files.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a desktop host with power-off protection according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a desktop computer according to an embodiment of the utility model.

1-a power supply; 2-a storage battery; a 3-DC/DC voltage stabilizer; 4-a switching module; 5-CPU; 6-a heat dissipation device; 7-displaying cards; 8-memory; 9-hard disk; 10-MCU control unit; 11-a sampling circuit module; 12-a host chassis; 13-an actuation button; 14-display screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in a specific case by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1, an embodiment of a desktop host with power-off protection function according to an embodiment of the present utility model includes:

the power supply 1 is externally connected with alternating current commercial power, the power supply 1 is used for converting the alternating current commercial power into low-voltage direct current and supplying the low-voltage direct current to a host system, and the storage battery 2 is supplied to the host system after passing through the DC/DC voltage stabilizer 3;

the first end of the switching module 4 is connected with the power supply 1, the second end of the switching module 4 is connected with the output end of the DC/DC voltage stabilizer 3, the third end of the switching module 4 outputs low-voltage direct current to be supplied to the host system, and the switching module 4 is used for switching the power supply 1 into the storage battery 2 to supply power to the host system after stopping supplying power to the host system. The switching module adopts an MOS tube, the MOS tube switching circuit realizes the switching of the power supplies by utilizing the conduction characteristic of the MOS tube and the voltage of the power supply, and when one power supply works normally, the MOS tube is in a conduction state, and the other power supply is disconnected; when one of the power supplies fails or fails, the MOS tube loses control signals, the conducting state is interrupted, and the other power supply takes over work. In an alternative scheme, the switching module 4 may adopt a single-pole double-throw circuit-breaking relay, where the single-pole double-throw circuit-breaking relay has three contacts, namely a normally open contact, a normally closed contact and a static contact, respectively, where the normally closed contact is connected to an output end of a power supply, the normally open contact is connected to an output end of a DC/DC voltage stabilizer, and the static contact is connected to a host system.

In a specific embodiment, the storage battery 2 is a secondary battery, the power supply 1 is electrically connected to the storage battery 2, and the power supply 1 converts the ac mains supply into low-voltage dc power and then charges the storage battery 2. The secondary battery (Rechargeable battery) is also called a rechargeable battery or a storage battery, and is a battery that can be continuously used by activating an active material by charging after discharging the battery. By utilizing the reversibility of chemical reaction, a new battery can be built, namely, after one chemical reaction is converted into electric energy, the chemical system can be repaired by using the electric energy, and then the chemical reaction is converted into electric energy, so the secondary battery (rechargeable battery) is called. The main rechargeable batteries in the market include nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid (or lead-storage) batteries, lithium ion batteries, polymer lithium ion batteries and the like. By way of example, the secondary battery employs a lithium battery, and the voltage may employ 12V, 24V, etc.; the capacity of the secondary battery is only used for the desktop computer to maintain for 1-20 minutes, so that enough reaction time is provided for a user to carry out emergency operation, and the influence caused by sudden power failure of alternating current mains supply is prevented.

In a specific embodiment, the host system includes a CPU, a heat dissipating device 6, a graphics card 7, a memory 8, and a hard disk 9, and the power supply 1 is electrically connected to the CPU5, the heat dissipating device 6, the graphics card 7, the memory 8, and the hard disk 9, respectively;

the storage battery 2 is electrically connected with the input end of the DC/DC voltage stabilizer 3, and the output end of the DC/DC voltage stabilizer 3 is electrically connected with the CPU, the heat dissipation device 6, the display card 7, the memory 8 and the hard disk 9 respectively. The host system is the same as or similar to the existing host system, and various hardware connection relationships or functional relationships thereof are the same as those of the prior art, and are not described herein.

In a specific embodiment, the desktop host further includes an MCU control unit 10, where the MCU control unit 10 is electrically connected to the switching module 4, and the MCU control unit 10 is configured to control the switching module 4 to switch the electrical connection between the power supply 1 and the host system to be turned on to the electrical connection between the battery 2 and the host system.

In a specific embodiment, the device further includes a sampling circuit module 11, the sampling circuit module 11 is electrically connected to the power supply 1, the sampling circuit module 11 is configured to sample an output voltage of the power supply 1, and transmit the obtained output voltage to the MCU control unit 10, and the MCU control unit controls the switching module 4 to switch according to the received output voltage. The sampling circuit module is an exemplary voltage sampling circuit, and is configured to detect an output voltage of the power supply 1, and when the detected output voltage of the power supply 1 is 0, the MCU control unit 10 controls the switching module 4 to switch the conductive electrical connection between the power supply 1 and the host system to the conductive electrical connection between the battery 2 and the host system. In an alternative embodiment, the sampling circuit module 11, the MCU control unit 10 and the switching module 4 may be implemented with reference to a switching mode of a power supply of an Uninterruptible Power Supply (UPS) in the prior art.

In a specific embodiment, the MCU control unit 10 is electrically connected to the battery 2, and the battery 2 provides electrical power to the MCU control unit 10.

In a specific embodiment, the power supply 1, the storage battery 2, the DC/DC voltage regulator 3 and the switching module 4 are disposed in the host case 12.

In a specific embodiment, the host chassis 12 is provided with a start button 13, the start button 13 is electrically connected to the switching module 4, the start button 13 is used for controlling the power supply 1 to power up or power down to the host system through the switching module 4, or the start button 13 is used for controlling the battery 2 to power down to the host system.

The desktop host with the power-off protection function in the embodiment of the present utility model is described above, and the desktop in the embodiment of the present utility model is described below, referring to fig. 2, an embodiment of the desktop in the embodiment of the present utility model includes:

the desktop host with the power-off protection function further comprises a display screen 14.

In a specific embodiment, the host system is coupled to the display 14, and the host system provides power to the display 14. The connection relationship between the display screen and the desktop host computer with the power-off protection function is exemplified with reference to the existing desktop computer.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model 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 utility model.

Claims

1. A desktop computer host with a power-off protection function is characterized in that: the power supply (1) is externally connected with alternating current commercial power, the power supply (1) is used for converting the alternating current commercial power into low-voltage direct current and supplying the low-voltage direct current to a host system, and the storage battery (2) is supplied to the host system after passing through a DC/DC voltage stabilizer (3);

the switching module (4), the first end of switching module (4) is connected power (1), the second end of switching module (4) is connected the output of DC/DC stabiliser (3), the third end output low voltage direct current of switching module (4) is supplied with host system, switching module (4) are used for power (1) stop to after the power supply of host system switches into battery (2) is supplied with power to host system.

2. The desktop host with power-off protection function according to claim 1, wherein: the storage battery (2) is a secondary battery, the power supply (1) is electrically connected with the storage battery (2), and the power supply (1) converts alternating current mains supply into low-voltage direct current and then charges the storage battery (2).

3. The desktop host with power-off protection function according to claim 1, wherein: the host system comprises a CPU (5), a heat radiating device (6), a display card (7), a memory (8) and a hard disk (9), wherein the power supply (1) is respectively and electrically connected with the CPU (5), the heat radiating device (6), the display card (7), the memory (8) and the hard disk (9);

the storage battery (2) is electrically connected with the input end of the DC/DC voltage stabilizer (3), and the output end of the DC/DC voltage stabilizer (3) is electrically connected with the CPU (5), the heat radiating device (6), the display card (7), the memory (8) and the hard disk (9) respectively.

4. The desktop host with power-off protection function according to claim 1, wherein: the power supply system further comprises an MCU control unit (10), wherein the MCU control unit (10) is electrically connected with the switching module (4), and the MCU control unit (10) is used for controlling the switching module (4) to switch the electric connection between the conducted power supply (1) and the host system into the electric connection between the storage battery (2) and the host system.

5. The desktop host computer with power-off protection function according to claim 4, wherein: the power supply device comprises a power supply (1), and is characterized by further comprising a sampling circuit module (11), wherein the sampling circuit module (11) is electrically connected with the power supply (1), the sampling circuit module (11) is used for sampling the output voltage of the power supply (1), the obtained output voltage is transmitted to an MCU control unit (10), and the MCU control unit controls the switching module (4) to switch according to the received output voltage.

6. The desktop host computer with power-off protection function according to claim 4, wherein: the MCU control unit (10) is electrically connected with the storage battery (2), and the storage battery (2) provides electric energy for the MCU control unit (10).

7. A desktop host with power-off protection according to any one of claims 1-6, wherein: the power supply (1), the storage battery (2), the DC/DC voltage stabilizer (3) and the switching module (4) are arranged in the host machine case (12).

8. The desktop host with power-off protection function according to claim 7, wherein: the host case (12) is provided with a starting key (13), the starting key (13) is electrically connected with the switching module (4), the starting key (13) is used for controlling the power supply (1) to electrify or electrify the host system through the switching module (4), or the starting key (13) is used for controlling the storage battery (2) to electrify or electrify the host system.

9. A desktop computer, characterized in that: a desktop host comprising a power-off protection function according to any one of claims 1-8, further comprising a display screen (14).

10. A desktop computer according to claim 9, wherein: the host system is connected with the display screen (14), and the host system provides electric energy for the display screen (14).