Direct-current power supply fault early warning system
By using a combination of current regulation module and comparator in the DC power screen fault warning system, multiple reference currents are used to control the sound of the buzzer, which solves the problem of difficult to judge the severity of the fault in the prior art, and achieves rapid judgment and Automatic protection effect.
Patent Information
- Application Number
- CN202420938111.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing DC power screen fault warning system is complex, and it is difficult for technical workers to directly understand the severity of the fault.
A DC power supply fault warning system including a current regulation module, a comparator and audible alarm is designed. The output current of the DC power supply screen is collected through the current regulation module and connected it to multiple comparators, each comparator has For different reference currents, when the output current exceeds the reference current, the corresponding buzzer emits a beeping sound, and the magnitude of the sound indicates the severity of the fault.
Technicians can quickly judge the severity of the fault based on the number and size of the beeps and take corresponding measures. The system also includes a switching module and a feedback module to avoid damage caused by excessive current and automatic power outage.
Smart Images
Figure CN222365075U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of direct current power supply, and in particular to a direct current power supply fault early warning system. Background Art
[0002] A DC power supply panel is a device that converts other forms of energy into electrical energy and provides electrical energy to the circuit. A DC power supply panel may fail during production, processing, and subsequent use. Therefore, it is necessary to detect the faults of the DC power supply panel, which requires the use of corresponding DC power supply panel fault detection equipment. In some application fields, the magnitude of the current needs to be maintained at a certain magnitude. In the prior art, the fault warning system of the DC power supply panel is relatively complex, and technical workers cannot directly understand the severity of the fault. Therefore, we propose a detection device to detect the current of the DC power supply panel. Utility Model Content
[0003] The disclosed embodiment provides a DC power supply fault warning system to solve the problem of how to promptly feed back the severity of a DC power supply panel fault to staff.
[0004] In a first aspect, an embodiment of the present disclosure provides a DC power supply failure warning system, comprising:
[0005] A current regulation module, a plurality of comparators and a plurality of sound alarms;
[0006] The current regulating module has a first end connected to the output end of the external DC power supply panel, and a second end connected to the plurality of comparators respectively; the plurality of comparators are connected to the plurality of sound alarms in a one-to-one correspondence;
[0007] The current regulating module is configured to collect the output current of the DC power panel and send the output current to the multiple comparators respectively;
[0008] Each comparator is configured to control the working state of the sound alarm corresponding to the comparator according to the output current; wherein the reference current of each comparator is different.
[0009] In an exemplary embodiment of the present disclosure, it further includes:
[0010] Switch module;
[0011] The switch module is arranged between the output end of the DC power supply panel and the power supply load correspondingly connected to the DC power supply panel; the switch module is controlled by the multiple comparators.
[0012] In an exemplary embodiment of the present disclosure, it further includes:
[0013] Feedback module;
[0014] The feedback module is arranged between the plurality of comparators and the switch module;
[0015] The feedback module is configured to control a switching state of the switch module according to output levels of the plurality of comparators.
[0016] In an exemplary embodiment of the present disclosure, the plurality of sound alarms include a first buzzer, a second buzzer, and a third buzzer;
[0017] The plurality of comparators include a first comparator, a second comparator, and a third comparator;
[0018] The first comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external first reference current, and an output terminal connected to the first buzzer;
[0019] The second comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external second reference current, and an output terminal connected to the second buzzer and the first input terminal of the feedback module respectively;
[0020] The third comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external third reference current, and an output terminal connected to the third buzzer and the second input terminal of the feedback module respectively;
[0021] The output end of the feedback module is connected to the control end of the switch module;
[0022] The first reference current is smaller than the second reference current, and the second reference current is smaller than the third reference current.
[0023] In an exemplary embodiment of the present disclosure, it further includes:
[0024] A first indicator light, a second indicator light, and a third indicator light;
[0025] The first indicator light has a first end connected to the second end of the first comparator, and a second end connected to the first end of the first buzzer;
[0026] The second indicator light has a first end connected to the second end of the second comparator, and a second end connected to the first end of the second buzzer;
[0027] The third indicator light has a first end connected to the second end of the third comparator, and a second end connected to the first end of the third buzzer.
[0028] In an exemplary embodiment of the present disclosure, the current regulating module includes:
[0029] Current transformer unit;
[0030] The current mutual inductance unit has a first end connected to the second end of the DC power supply panel, and a second end connected to the first ends of the plurality of comparators respectively.
[0031] In an exemplary embodiment of the present disclosure, it further includes:
[0032] Filter module;
[0033] The filtering module is arranged between the DC power supply panel and the current regulating module.
[0034] In an exemplary embodiment of the present disclosure, it further includes:
[0035] Power supply module;
[0036] The power supply module is connected to the multiple comparators and the multiple sound alarms respectively.
[0037] In an exemplary embodiment of the present disclosure, it further includes:
[0038] Communication module;
[0039] The communication modules are connected to the output terminals of the plurality of comparators respectively.
[0040] The beneficial effects of the DC power supply fault warning system provided by the embodiment of the present disclosure are as follows:
[0041] In this application, the current regulation module will adjust the current of the DC power supply screen, and compare the adjusted current with multiple comparators. Each comparator has a corresponding parameter current. The comparator compares the adjusted current with the parameter current to obtain a comparison result. The comparison result is output to the buzzer to determine whether the buzzer will emit a buzzing sound.
[0042] The more the DC power panel exceeds the normal current, the more buzzers will beep, and the louder the total buzzer sound will be. After hearing the buzzer, the technician can judge the severity of the instrument failure based on the volume of the buzzer, and then make the correct response strategy in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0044] Figure 1 It is a structural schematic diagram of a DC power supply failure early warning system provided by an embodiment of the present disclosure;
[0045] Figure 2 is a structural schematic diagram of another DC power supply failure early warning system provided by an embodiment of the present disclosure;
[0046] Figure 3 is a structural diagram of another DC power supply failure warning system provided by an embodiment of the present disclosure;
[0047] Figure 4 It is a structural diagram of another DC power supply failure warning system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION
[0048] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.
[0049] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.
[0050] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:
[0051] Figure 1 A schematic diagram of the structure of a DC power supply fault warning system provided by an embodiment of the present disclosure. Figure 1 , the DC power supply failure early warning system includes:
[0052] A current regulating module 11, a plurality of comparators 12 and a plurality of sound alarms 13;
[0053] The current regulating module 11 has a first end connected to the output end of the external DC power supply panel 14, and a second end connected to the plurality of comparators 12 respectively; the plurality of comparators 12 are connected to the plurality of sound alarms 13 in a one-to-one correspondence;
[0054] The current regulating module 11 is configured to collect the output current of the DC power supply panel 14 and send the output current to the multiple comparators 12 respectively;
[0055] Each comparator is configured to control the working state of the sound alarm corresponding to the comparator according to the output current; wherein the reference current of each comparator is different.
[0056] The current regulating module 11 is used to convert the current of the DC power supply panel 14 into a smaller current.
[0057] Each comparator has a reference current. The comparator compares the input current with the reference current and outputs a high level or a low level according to the comparison result.
[0058] Each buzzer is exactly the same, and the working state of the buzzer is determined by the output current of the connected comparator.
[0059] Specifically, the current of the DC power supply screen 14 is converted by the current regulating module 11, and the current is reduced according to a certain ratio, and the current is made less than the maximum current of the comparator. Each comparator has a reference current, and each reference current is different. The comparator compares the input current with the reference current. If the input current is greater than the reference current, a high level is output, and if the input current is less than the reference current, a low level is output. After receiving a high level, the buzzer emits a buzzing sound; after receiving a low level, the buzzer enters a silent state.
[0060] The beneficial effect of the technical solution in the present application is that the more the DC power supply panel 10 exceeds the normal current, the more the number of buzzers that emit buzzing sounds, and the louder the total buzzing sound. After hearing the buzzing sound, the technician can judge the severity of the instrument failure according to the volume of the buzzer sound, and then make the correct corresponding strategy in time.
[0061] In one embodiment, Figure 2 is a structural diagram of another DC power supply failure warning system provided by an embodiment of the present disclosure, Figure 3 is a structural diagram of another DC power supply failure warning system provided by an embodiment of the present disclosure, Figure 4 is a structural diagram of another DC power supply failure warning system provided by an embodiment of the present disclosure. Figure 2 , Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0062] Switch module 15;
[0063] The switch module 15 is arranged between the output end of the DC power supply panel 14 and the power supply load connected to the DC power supply panel 14 ; the switch module 15 is controlled by a plurality of comparators 12 .
[0064] The switch module 15 is used to control the output state of the DC panel to the electrical appliance 10 .
[0065] Specifically, when the current of the DC power supply panel 14 is too large, the power supply to the electrical appliance 10 can be interrupted through the switch module 15 .
[0066] The switch module 15 can prevent the electrical appliance 10 from being damaged when the current is too large.
[0067] In one embodiment, reference Figure 2 , Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0068] Feedback module 16;
[0069] The feedback module 16 is arranged between the plurality of comparators 12 and the switch module 15;
[0070] The feedback module 16 is configured to control the switching state of the switch module 15 according to the output levels of the plurality of comparators 12 .
[0071] The feedback module 16 is used to control the switching state of the switch module 15 according to the output results of the plurality of comparators 12 .
[0072] Specifically, when two or more comparator output terminals are at a high level, the feedback module 16 controls the switch module 15 to be disconnected, thereby terminating the DC power panel 14 from supplying power to the electrical appliance 10 .
[0073] The feedback module 16 realizes the intelligence of the switch module 15 , and automatically disconnects the power supply from the DC power supply panel 14 to the electrical appliance 10 when the output current of the DC power supply panel 14 is too high.
[0074] In one embodiment, referring to Figure 3 , Figure 4 , the plurality of sound alarms 13 include a first buzzer 131 , a second buzzer 132 and a third buzzer 133 ;
[0075] The plurality of comparators 12 include a first comparator 121, a second comparator 122 and a third comparator 123;
[0076] A first comparator 121, having a first input terminal connected to the current regulating module 11, a second input terminal for receiving an external first reference current, and an output terminal connected to the first buzzer 131;
[0077] A second comparator 122, a first input end of which is connected to the current regulating module 11, a second input end of which is used to receive an external second reference current, and an output end of which is respectively connected to the second buzzer 132 and the first input end of the feedback module 16;
[0078] A third comparator 123, a first input end connected to the current regulating module 11, a second input end for receiving an external third reference current, and an output end connected to the third buzzer 133 and the second input end of the feedback module 16 respectively;
[0079] The output end of the feedback module 16 is connected to the control end of the switch module 15;
[0080] The first reference current is smaller than the second reference current, and the second reference current is smaller than the third reference current.
[0081] The reference currents of the first reference current, the second reference current, and the third reference current increase in sequence.
[0082] Multiple buzzers have exactly the same functions.
[0083] Specifically, the first comparator 121 compares the input current of the current regulating module 11 with the first reference current. If the input current of the current regulating module 11 is greater than the first reference current, the first comparator 121 outputs a high level, and the buzzer 13 connected to the first comparator 121 emits a buzzer sound after receiving the high level. If the input current of the current regulating module 11 is less than the first reference current, the first comparator 121 outputs a low level, and the buzzer 13 connected to the first comparator 121 does not emit a buzzer sound after receiving the low level.
[0084] The second comparator 122 compares the input current of the current regulating module 11 with the second reference current. If the input current of the current regulating module 11 is greater than the second reference current, the second comparator 122 outputs a high level, and the buzzer 13 connected to the second comparator 122 emits a buzzer sound after receiving the high level. If the input current of the current regulating module 11 is less than the second reference current, the second comparator 122 outputs a low level, and the buzzer 13 connected to the second comparator 122 does not emit a buzzer sound after receiving the low level.
[0085] The third comparator 123 compares the input current of the current regulating module 11 with the third reference current. If the input current of the current regulating module 11 is greater than the third reference current, the third comparator 123 outputs a high level, and the buzzer 13 connected to the third comparator 123 emits a buzzer sound after receiving the high level. If the input current of the current regulating module 11 is less than the third reference current, the third comparator 123 outputs a low level, and the buzzer 13 connected to the third comparator 123 does not emit a buzzer sound after receiving the low level.
[0086] For example, if the first reference current is 0.5A, the second reference current is 0.7A, the third reference current is 0.9A, and the output current of the DC power supply panel 10 is 8A, the current regulation module 11 collects the 8A current of the DC power supply panel 10, and the collection result is 0.8A. The collection result is greater than the first reference current and the second reference current, and less than the third reference current. Therefore, the first comparator 121 outputs a high level, and the buzzer 13 connected to the first comparator 121 emits a buzzer sound, the second comparator 122 outputs a high level, and the buzzer 13 connected to the second comparator 122 emits a buzzer sound, and the third comparator 123 outputs a low level, and the buzzer 13 connected to the third comparator 123 does not emit a buzzer sound.
[0087] The first reference current, the second reference current, and the third reference current are preset according to the severity of the current, and the staff can directly understand the severity of the fault according to the number of buzzers that beep.
[0088] In one embodiment, referring to Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0089] A first indicator light 171, a second indicator light 172, and a third indicator light 173;
[0090] A first indicator light 171, a first end of which is connected to the second end of the first comparator 121, and a second end of which is connected to the first end of the first buzzer 131;
[0091] A second indicator light 172, a first end of which is connected to the second end of the second comparator 122, and a second end of which is connected to the first end of the second buzzer 132;
[0092] The third indicator light 173 has a first end connected to the second end of the third comparator 123 , and a second end connected to the first end of the third buzzer 133 .
[0093] The first indicator light 171 is used to receive the output voltage of the first comparator 121 and turn on or off the light according to the output voltage. The second indicator light 172 is used to receive the output voltage of the second comparator 122 and turn on or off the light according to the output voltage. The third indicator light 173 is used to receive the output voltage of the third comparator 123 and turn on or off the light according to the output voltage.
[0094] Specifically, if the input current of the current regulating module 11 is greater than the first reference current, the first comparator 121 outputs a high level, and the first indicator light 171 emits a red light after receiving the high level. If the input current of the current regulating module 11 is less than the first reference current, the first comparator 121 outputs a low level, and the first indicator light 171 emits a green light after receiving the low level.
[0095] If the input current of the current regulating module 11 is greater than the second reference current, the second comparator 122 outputs a high level, and the second indicator light 172 emits a red light after receiving the high level. If the input current of the current regulating module 11 is less than the second reference current, the second comparator 122 outputs a low level, and the first indicator light 172 emits a green light after receiving the low level.
[0096] If the input current of the current regulating module 11 is greater than the third reference current, the third comparator 123 outputs a high level, and the third indicator light 173 emits a red light after receiving the high level. If the input current of the current regulating module 11 is less than the third reference current, the third comparator 123 outputs a low level, and the third indicator light 173 emits a green light after receiving the low level.
[0097] The use of the first indicator light 171, the second indicator light 172, and the third indicator light 173 helps the staff to quickly understand the severity of the fault.
[0098] In one embodiment, referring to Figure 3 , Figure 4 , the current regulating module 11 also includes:
[0099] Current mutual inductance unit 111;
[0100] The current mutual inductance unit 111 has a first end connected to the second end of the DC power supply panel 14 , and a second end connected to the first ends of the plurality of comparators 12 .
[0101] The current transformer module is used to collect the current of the DC power supply panel 14.
[0102] Specifically, the current transformer 111 collects the current of the DC power supply panel 14, reduces the collected current information according to a certain ratio, and outputs it to the multiple comparators 12. For example, if the output current of the DC power supply panel 10 is 10A, the current information collected by the current transformer 111 is 0.1A.
[0103] The current transformer module reduces the current and prevents the comparator from being burned by the large current.
[0104] In one embodiment, referring to Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0105] Filter module 18;
[0106] The filter module 18 is disposed between the DC power supply panel 14 and the current regulating module 11 .
[0107] The filter module 18 is used to filter impurity current in the current.
[0108] The filter module 18 ensures the stability and accuracy of the current and ensures that the fault warning system can issue an accurate warning.
[0109] In one embodiment, referring to Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0110] Power supply module 19;
[0111] The power supply module 19 is connected to the plurality of comparators 12 and the plurality of sound alarms 13 respectively.
[0112] The power supply module 19 is used to supply power to the multiple comparators 12 and the multiple sound alarms 13 .
[0113] The power supply module 19 ensures the power supply of the plurality of comparators 12 and the plurality of sound alarms 13 .
[0114] In one embodiment, referring to Figure 3 , Figure 4 , the DC power supply failure warning system also includes:
[0115] Communication module 20;
[0116] The communication module 20 is connected to the output terminals of the plurality of comparators 12 respectively.
[0117] The communication module 20 is used to receive the output results of the plurality of comparators 12 and send the output results to the electronic terminal of the technician.
[0118] When the technicians are not around the faulty equipment, the communication module can also ensure that the technicians can receive equipment fault information.
[0119] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.
Claims
1. A DC power supply failure early warning system, characterized in that: include: A current regulation module, a plurality of comparators and a plurality of sound alarms; The current regulating module has a first end connected to the output end of the external DC power supply panel, and a second end connected to the plurality of comparators respectively; the plurality of comparators are connected to the plurality of sound alarms in a one-to-one correspondence; The current regulating module is configured to collect the output current of the DC power panel and send the output current to the multiple comparators respectively; Each comparator is configured to control the working state of the sound alarm corresponding to the comparator according to the output current; wherein the reference current of each comparator is different.
2. The DC power supply failure warning system according to claim 1, characterized in that: Also includes: Switch module; The switch module is arranged between the output end of the DC power panel and the power supply load connected to the DC power panel; The switch module is controlled by the plurality of comparators.
3. The DC power supply failure warning system according to claim 2, characterized in that: Also includes: Feedback module; The feedback module is arranged between the plurality of comparators and the switch module; The feedback module is configured to control a switching state of the switch module according to output levels of the plurality of comparators.
4. The DC power supply failure warning system according to claim 3, characterized in that: The plurality of sound alarms include a first buzzer, a second buzzer, and a third buzzer; The plurality of comparators include a first comparator, a second comparator, and a third comparator; The first comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external first reference current, and an output terminal connected to the first buzzer; The second comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external second reference current, and an output terminal connected to the second buzzer and the first input terminal of the feedback module respectively; The third comparator has a first input terminal connected to the current regulating module, a second input terminal used to receive an external third reference current, and an output terminal connected to the third buzzer and the second input terminal of the feedback module respectively; The output end of the feedback module is connected to the control end of the switch module; The first reference current is smaller than the second reference current, and the second reference current is smaller than the third reference current.
5. The DC power supply failure warning system according to claim 4, characterized in that: Also includes: A first indicator light, a second indicator light, and a third indicator light; The first indicator light has a first end connected to the second end of the first comparator, and a second end connected to the first end of the first buzzer; The second indicator light has a first end connected to the second end of the second comparator, and a second end connected to the first end of the second buzzer; The third indicator light has a first end connected to the second end of the third comparator, and a second end connected to the first end of the third buzzer.
6. The DC power supply failure warning system according to claim 1, characterized in that: The current regulation module includes: Current transformer unit; The current mutual inductance unit has a first end connected to the second end of the DC power supply panel, and a second end connected to the first ends of the plurality of comparators respectively.
7. The DC power supply failure warning system according to claim 1, characterized in that: Also includes: Filter module; The filtering module is arranged between the DC power supply panel and the current regulating module.
8. The DC power supply failure warning system according to claim 1, characterized in that: Also includes: Power supply module; The power supply module is connected to the multiple comparators and the multiple sound alarms respectively.
9. The DC power supply failure warning system according to claim 1, characterized in that: Also includes: Communication module; The communication modules are connected to the output terminals of the plurality of comparators respectively.