Microcomputer-based intelligent programmable DC power supply

Abstract

This utility model relates to the field of microcomputer-controlled DC power supply technology, and discloses a microcomputer-based intelligent programmable DC power supply, including a cabinet. A cabinet door is rotatably connected to the front right end of the cabinet. A carrier plate is fixedly connected inside the cabinet, and multiple batteries are fixedly connected to the top of the carrier plate. A DC power supply screen is fixedly connected to the front of the cabinet door. A back cover is fixedly connected to the rear of the DC power supply screen via a connecting mechanism. Multiple power interfaces are provided at the bottom of the back cover. An AC-to-DC charger is fixedly connected to the bottom inner side of the back cover, and a protection switch is fixedly connected to the left inner side of the back cover. In this utility model, the AC-to-DC charger converts the power supply, while ammeters and voltmeters monitor and feed back data to the DC power supply screen. This not only ensures the continuous and stable operation of the load equipment but also allows operators to monitor the working status of the DC power supply in real time, improving the safety and reliability of the power system.

Description

Technical Field

[0001] This utility model relates to the field of microcomputer DC power supply technology, and in particular to a microcomputer-based intelligent programmable DC power supply. Background Technology

[0002] Microcomputer-based intelligent programmable DC power supply is an important piece of equipment in the power system. It can provide a stable and reliable DC power supply for the control, protection and signal transmission of the power system. Regardless of whether the AC power supply is normal or not, it can ensure the continuous and stable operation of these key devices, guarantee the safety and reliability of the power system, greatly improve the automation level and operation and maintenance efficiency of the power system, and ensure the stable and efficient operation of the power system.

[0003] A search revealed Chinese patent publication number CN208862437U, which discloses a wall-mounted DC power supply, comprising a cabinet, a front panel, heat dissipation holes, a communication power supply, a cover plate, a mounting groove, a first heat-conducting plate, a filter plate, a cooling fan, a heat dissipation plate, a second heat-conducting plate, a DC power supply body, a fixing clamp, fastening pins, a mounting base, a support frame, a buffer plate, a protective pad, a spring seat, a limit plate, a compression spring, a monitor, and a wiring assembly. The front panel is bolted to one side of the cabinet, and a monitor is mounted on one side of the front panel. The other side of the front panel is bolted... The cabinet is equipped with several wiring assemblies. A heat dissipation hole is provided in the center of the top of the cabinet. Cover plates are installed on both sides of the cabinet by bolts. The cover plates have installation grooves inside. This wall-mounted DC power supply is compact and easy to install and disassemble. During use, it has good heat dissipation and impact resistance, effectively extending the service life of the DC power supply. However, it cannot monitor the operation of the cabinet in real time, and its safety and reliability are insufficient. Once current overload, abnormal voltage fluctuation, or excessive temperature caused by poor heat dissipation occurs, it cannot be detected and dealt with in time, which may lead to equipment failure or even safety accidents. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a microcomputer-based intelligent programmable DC power supply, which aims to improve the problem of insufficient safety and reliability caused by the inability to detect and handle problems inside the cabinet in a timely manner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a microcomputer-based intelligent programmable DC power supply, comprising a cabinet, a cabinet door rotatably connected to the front right end of the cabinet, a carrier plate fixedly connected inside the cabinet, multiple batteries fixedly connected to the top of the carrier plate, a DC power supply screen fixedly connected to the front of the cabinet door, a rear cover fixedly connected to the rear of the DC power supply screen via a connecting mechanism, multiple power interfaces opened at the bottom of the rear cover, an AC-to-DC charger fixedly connected to the bottom inner side of the rear cover, a protection switch fixedly connected to the left inner side of the rear cover, a voltmeter fixedly connected to the right inner side of the rear cover, and an ammeter fixedly connected to the middle inner side of the rear cover.

[0006] The above technical solution converts the power supply using an AC-to-DC charger, while ammeters and voltmeters monitor and feed back data to the DC power supply screen. This achieves the effect of providing a stable and reliable DC power supply to the power system, ensuring the continuous and stable operation of the load equipment and allowing operators to understand the working status of the DC power supply in real time, promptly identify and handle potential problems, and improve the safety and reliability of the power system.

[0007] As a further description of the above technical solution:

[0008] The connecting mechanism includes an L-shaped hook plate, the bottom of which is fixedly connected to the top of the back cover. A connecting plate is fixedly connected to the top of the DC screen. A disassembly groove is provided on the rear side of the top of the DC screen. The interior of the connecting plate is connected to the disassembly groove. Mounting screws are passed through the four corners of the rear side of the back cover. Connecting posts are fixedly connected to the four corners of the rear side of the DC screen. The ends of the mounting screws are threaded into the interiors of the connecting posts.

[0009] The above technical solution achieves convenient connection and disassembly of the DC power supply screen and the back cover by using an L-shaped hook plate to engage with the connecting plate for initial positioning, and then reinforcing it with mounting screws and connecting posts. This greatly improves installation efficiency, reduces installation difficulty, and allows for quick separation of the two during equipment maintenance, facilitating the inspection and replacement of internal components and effectively saving maintenance time and labor costs.

[0010] As a further description of the above technical solution:

[0011] Multiple control buttons are fixedly connected to the bottom front side of the DC screen, and all of the control buttons adopt a push-button design.

[0012] The above technical solution allows for parameter settings of the DC power supply by pressing different push-button control buttons, thereby meeting different power demand scenarios.

[0013] As a further description of the above technical solution:

[0014] The DC screen is fixedly connected to a rubber sleeve, and the rubber sleeve has a smooth design on all four sides.

[0015] The above technical solution involves a rubber sleeve wrapped around the outside of the DC screen. The rounded design of the rubber sleeve effectively buffers external collisions and impacts, preventing damage to the DC screen due to accidental impacts.

[0016] As a further description of the above technical solution:

[0017] Multiple voltage indicator lights are fixedly connected to the center of the front side of the cabinet door, and each of the multiple voltage indicator lights is electrically connected to multiple batteries.

[0018] The above technical solution uses multiple voltage indicator lights to visually display the battery's voltage status. When the battery voltage is within the normal range, the corresponding voltage indicator light is green; if the voltage becomes abnormal, the indicator light will turn red, thus reminding staff to pay attention to the battery's condition.

[0019] As a further description of the above technical solution:

[0020] The upper and lower parts of the left side of the front of the cabinet door are both fixedly connected with double-layer linkage locks, and the two double-layer linkage locks are symmetrically designed.

[0021] The above technical solution, with its symmetrical double-layer interlocking lock, greatly enhances the security of the cabinet. Only by operating both locks simultaneously can the cabinet door be opened, effectively preventing unauthorized personnel from opening the cabinet at will.

[0022] As a further description of the above technical solution:

[0023] An emergency power valve is fixedly connected to the left side of the cabinet, and the emergency power valve is electrically connected to multiple batteries.

[0024] Through the above technical solution, the emergency power valve can quickly enable the battery to immediately supply power to critical equipment in an emergency, ensuring that important equipment will not stop working due to power outage.

[0025] As a further description of the above technical solution:

[0026] The power interfaces are designed with different models, and the exterior of the power interfaces is chamfered.

[0027] Through the above technical solutions, the power interfaces of different models can be adapted to a variety of different types of external devices, improving the versatility of the DC power supply. The chamfered design on the outside of the interface is to facilitate plugging and unplugging of the power plug, reduce resistance during plugging and unplugging, and avoid damage to the plug or interface due to difficulty in plugging and unplugging.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the AC to DC power supply is converted by an AC to DC charger, and the ammeter and voltmeter monitor and feed back the data to the DC power supply screen, thereby achieving the effect of providing a stable and reliable DC power supply to the power system. This not only ensures the continuous and stable operation of the load equipment, but also allows operators to understand the working status of the DC power supply in real time, promptly detect and deal with potential problems, and improve the safety and reliability of the power system.

[0030] 2. In this utility model, the L-shaped hook plate is initially positioned by engaging with the connecting plate, and then reinforced with mounting screws and connecting posts. This makes it convenient to connect and disassemble the DC screen and the back cover, greatly improving installation efficiency and reducing installation difficulty. At the same time, during equipment maintenance, the two can be quickly separated, making it easy to inspect and replace internal components, effectively saving maintenance time and labor costs. Attached Figure Description

[0031] Figure 1 This is a perspective view of the microcomputer-based intelligent programmable DC power supply proposed in this utility model;

[0032] Figure 2 This is a front view of the microcomputer-based intelligent programmable DC power supply proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of the cabinet in the microcomputer-based intelligent programmable DC power supply system proposed in this utility model;

[0034] Figure 4 This is a structural exploded view of the rear cover of the microcomputer-based intelligent programmable DC power supply screen proposed in this utility model;

[0035] Figure 5 This is a top view of the DC screen in the microcomputer-based intelligent programmable DC power supply proposed in this utility model;

[0036] Figure 6 This is a structural exploded view of the connecting mechanism in the microcomputer-based intelligent programmable DC power supply proposed in this utility model.

[0037] Legend:

[0038] 1. Cabinet; 2. Connection mechanism; 201. L-shaped hook plate; 202. Connection plate; 203. Disassembly slot; 204. Mounting screws; 205. Connection column; 3. Cabinet door; 4. Carrier plate; 5. Battery; 6. DC power supply screen; 7. Back cover; 8. Power interface; 9. AC to DC charger; 10. Protection switch; 11. Voltmeter; 12. Ammeter; 13. Control button; 14. Rubber sleeve; 15. Voltage indicator light; 16. Double-layer interlock; 17. Emergency power valve. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a microcomputer-type intelligent programmable DC power supply, including a cabinet 1, a cabinet door 3 rotatably connected to the front right end of the cabinet 1, a carrier plate 4 fixedly connected inside the cabinet 1, multiple batteries 5 fixedly connected to the top of the carrier plate 4, a DC power supply screen 6 fixedly connected to the front of the cabinet door 3, a rear cover 7 fixedly connected to the rear of the DC power supply screen 6 through a connecting mechanism 2, multiple power interfaces 8 opened at the bottom of the rear cover 7, an AC to DC charger 9 fixedly connected to the bottom inside the rear cover 7, a protection switch 10 fixedly connected to the left inside the rear cover 7, a voltmeter 11 fixedly connected to the right inside the rear cover 7, and an ammeter 12 fixedly connected to the middle inside the rear cover 7.

[0041] Specifically, in the power input stage, AC power is connected to the DC power supply through the power interface 8 at the bottom of the rear cover 7. The AC-to-DC charger 9 converts the input AC power into DC power. When the circuit experiences overload or short circuit, the protection switch 10 can quickly sense abnormal changes in current or voltage and automatically cut off the circuit. Multiple batteries 5 are connected in parallel on the carrier board 4, which can not only store electrical energy but also serve as a backup power source to continuously power the load equipment when the AC power supply fails or becomes unstable. Another DC power supply directly powers the load equipment. During current transmission, the ammeter 12 and voltmeter 11 monitor the magnitude of current and voltage in real time. The ammeter 12 accurately measures the current value in the circuit through the principle of electromagnetic induction and feeds back the measurement result to the DC power supply screen 6. The voltmeter 11 measures the voltage value in the circuit using voltage divider technology and also transmits the data to the DC power supply screen 6. The DC power supply screen 6 can display the data intuitively in digital or graphical form, making it convenient to understand the working status of the DC power supply in real time. Through the operation interface on the screen, the DC power supply screen 6 ensures that the microcomputer-based intelligent programmable DC power supply can stably and reliably provide high-quality DC power to the power system.

[0042] Reference Figure 4 , Figure 5 and Figure 6The connecting mechanism 2 includes an L-shaped hook plate 201. The bottom of the L-shaped hook plate 201 is fixedly connected to the top of the back cover 7. A connecting plate 202 is fixedly connected to the top of the DC screen 6. A disassembly groove 203 is provided on the rear side of the top of the DC screen 6. The interior of the connecting plate 202 is connected to the disassembly groove 203. Mounting screws 204 are passed through the four corners of the rear side of the back cover 7. Connecting posts 205 are fixedly connected to the four corners of the rear side of the DC screen 6. The ends of the multiple mounting screws 204 are threaded into the interior of the multiple connecting posts 205 respectively.

[0043] Specifically, during installation, the L-shaped hook plate 201 and connecting plate 202 are used for initial positioning. The L-shaped hook plate 201 is fixed to the top of the back cover 7, providing guidance for installation. The connecting plate 202 on the top of the DC screen 6 is aligned with the L-shaped hook plate 201 and snapped into place, performing initial positioning of the DC screen 6 in both horizontal and vertical directions. In the horizontal direction, the slot of the L-shaped hook plate 201 restricts the left and right movement of the connecting plate 202; in the vertical direction, the horizontal part of the L-shaped hook plate 201 supports the connecting plate 202, preventing its up and down displacement, thus forming a preliminary stable connection between the DC screen 6 and the back cover 7. After the initial positioning is completed, the mounting screws 204 at the four corners of the back cover 7 correspond one-to-one with the connecting posts 205 at the corresponding positions on the back of the DC screen 6. The engagement of the connecting plate 202 has determined the relative positions of the two components. At this time, the mounting screw 204 and the connecting post 205 are also in precise corresponding positions. Simply pass the mounting screw 204 through the screw hole on the back cover 7 and screw it into the connecting post 205. As the screw is tightened, the connection between the DC screen 6 and the back cover 7 gradually becomes tighter, eventually achieving a stable connection. When the DC screen needs to be maintained or disassembled, the operation is reversed. First, unscrew the mounting screw 204 to release the threaded connection between the two components. Then, using the disassembly slot 203 on the rear top of the DC screen 6, insert the tool into it and use the lever principle to pry the connecting plate 202 upwards, so that the connecting plate 202 separates from the L-shaped hook plate 201, thereby easily removing the DC screen 6 from the back cover 7, which facilitates the inspection and replacement of internal components.

[0044] Reference Figure 1 , Figure 2 and Figure 4Multiple control buttons 13 are fixedly connected to the bottom front side of the DC power supply screen 6, and all control buttons 13 adopt a push-button design; a rubber sleeve 14 is fixedly connected to the outside of the DC power supply screen 6, and the rubber sleeve 14 has a smooth design on all four sides; multiple voltage indicator lights 15 are fixedly connected to the middle front side of the cabinet door 3, and the multiple voltage indicator lights 15 are electrically connected to multiple batteries 5; double-layer interlocking locks 16 are fixedly connected to the upper middle and lower middle parts of the front left side of the cabinet door 3, and the two double-layer interlocking locks 16 adopt a symmetrical design; an emergency power valve 17 is fixedly connected to the left side of the cabinet 1, and the emergency power valve 17 is electrically connected to multiple batteries 5; multiple power interfaces 8 adopt different models and the exterior of multiple power interfaces 8 adopts a chamfered design;

[0045] Specifically, by pressing different push-button control buttons 13, the parameters of the DC power supply can be set to meet different power demand scenarios. A rubber sleeve 14 covers the outside of the DC power supply screen 6, and its smooth design effectively buffers external collisions and impacts, preventing damage to the DC power supply screen 6 due to accidental impacts. Multiple voltage indicator lights 15 are used to visually display the voltage status of the battery 5. When the battery 5 voltage is within the normal range, the corresponding voltage indicator light 15 is green; if the voltage is abnormal, the voltage indicator light 15 will turn red, thus reminding staff to pay attention to the battery. The symmetrical double-layer interlocking lock 16 greatly enhances the security of the cabinet 1. Only by operating both locks simultaneously can the cabinet door 3 be opened, effectively preventing unauthorized personnel from opening the cabinet 1 at will. The emergency power valve 17 can quickly enable the battery 5 to power critical equipment in an emergency, ensuring that important equipment will not stop working due to power outages. The power interface 8 with different models can be adapted to various types of external equipment, improving the versatility of the DC power supply. The chamfered design on the outside of the interface is to facilitate plugging and unplugging the power plug, reduce resistance during plugging and unplugging, and avoid damage to the plug or interface due to difficulty in plugging and unplugging.

[0046] Working principle: In the power input stage, AC power is connected to the DC power supply through the power interface 8 at the bottom of the back cover 7. The AC to DC charger 9 converts the input AC power into DC power. When the circuit is overloaded or short-circuited, the protection switch 10 can quickly sense the abnormal changes in current or voltage and automatically cut off the circuit. Multiple batteries 5 are connected in parallel on the carrier board 4. They can not only store electrical energy, but also serve as a backup power supply to continuously power the load equipment when the AC power supply fails or becomes unstable. Another DC power supply directly powers the load equipment. During the current transmission process, the ammeter 12 and voltmeter 11 monitor the magnitude of current and voltage in real time. The ammeter 12 accurately measures the current value in the circuit through the principle of electromagnetic induction and feeds back the measurement result to the DC power supply screen 6. The voltmeter 11 measures the voltage value in the circuit using voltage divider technology and also transmits the data to the DC power supply screen 6. The DC power supply screen 6 can display the data in a clear digital or graphical form, making it convenient to understand the working status of the DC power supply in real time.

[0047] Furthermore, initial positioning is achieved using the L-shaped hook plate 201 and connecting plate 202. The L-shaped hook plate 201 is fixed to the top of the back cover 7, providing guidance for installation. The connecting plate 202 on the top of the DC screen 6 is aligned with the L-shaped hook plate 201 and engaged, performing initial positioning of the DC screen 6 in both horizontal and vertical directions. Horizontally, the slot of the L-shaped hook plate 201 restricts the left-right movement of the connecting plate 202; vertically, the horizontal portion of the L-shaped hook plate 201 supports the connecting plate 202, preventing its vertical displacement. This establishes a preliminary stable connection between the DC screen 6 and the back cover 7. After initial positioning, the mounting screws 204 at the four corners of the back cover 7 correspond one-to-one with the connecting posts 205 at the corresponding positions on the back of the DC screen 6. Due to the previous L-shaped hook... The engagement of plate 201 and connecting plate 202 has determined their relative positions. At this time, the mounting screw 204 and connecting post 205 are also in precise corresponding positions. Simply pass the mounting screw 204 through the screw hole on the back cover 7 and screw it into the connecting post 205. As the screw is tightened, the connection between the DC screen 6 and the back cover 7 gradually becomes tighter, eventually achieving a stable connection. When the DC screen needs to be maintained or disassembled, the operation is reversed. First, unscrew the mounting screw 204 to release the threaded connection between the two. Then, use the disassembly slot 203 on the rear top of the DC screen 6 to insert a tool. Using the lever principle, pry the connecting plate 202 upward to separate the connecting plate 202 from the L-shaped hook plate 201, thereby easily removing the DC screen 6 from the back cover 7.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microcomputer-based intelligent programmable DC power supply, including a cabinet (1), characterized in that: The cabinet (1) is rotatably connected to the front right end of the cabinet (1). The cabinet (1) is fixedly connected to the inside of the cabinet (1). Multiple batteries (5) are fixedly connected to the top of the cabinet (4). A DC screen (6) is fixedly connected to the front of the cabinet door (3). A back cover (7) is fixedly connected to the back of the DC screen (6) through a connecting mechanism (2). Multiple power interfaces (8) are opened at the bottom of the back cover (7). An AC to DC charger (9) is fixedly connected to the bottom inside the back cover (7). A protection switch (10) is fixedly connected to the left inside the back cover (7). A voltmeter (11) is fixedly connected to the right inside the back cover (7). An ammeter (12) is fixedly connected to the middle inside the back cover (7).

2. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: The connecting mechanism (2) includes an L-shaped hook plate (201), the bottom of which is fixedly connected to the top of the back cover (7). A connecting plate (202) is fixedly connected to the top of the DC screen (6). A disassembly groove (203) is provided on the rear side of the top of the DC screen (6). The interior of the connecting plate (202) is connected to the disassembly groove (203). There are mounting screws (204) through the four corners of the rear side of the back cover (7). A connecting post (205) is fixedly connected to the four corners of the rear side of the DC screen (6). The ends of the mounting screws (204) are threaded into the interior of the connecting posts (205).

3. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: Multiple control buttons (13) are fixedly connected to the bottom front side of the DC screen (6), and all of the multiple control buttons (13) adopt a press-type design.

4. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: The DC screen (6) is fixedly connected to a rubber sleeve (14), and the rubber sleeve (14) is rounded around its perimeter.

5. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: Multiple voltage indicator lights (15) are fixedly connected to the middle of the front side of the cabinet door (3), and the multiple voltage indicator lights (15) are electrically connected to multiple batteries (5).

6. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: The upper and lower parts of the left side of the cabinet door (3) are both fixedly connected with double-layer linkage locks (16), and the two double-layer linkage locks (16) are both symmetrically designed.

7. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: An emergency power valve (17) is fixedly connected to the left side of the cabinet (1), and the emergency power valve (17) is electrically connected to multiple batteries (5).

8. The microcomputer-based intelligent programmable DC power supply according to claim 1, characterized in that: The multiple power interfaces (8) are designed with different models, and the exterior of the multiple power interfaces (8) is designed with chamfers.

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