Voltage-stabilizing direct-current power supply panel
By designing two power modules and corresponding switch modules in the DC power screen, combining data acquisition and control modules, real-time response and delay control for load power changes is achieved, and the DC power supply stability problem is solved, ensuring different Load power requirements and system safety.
Patent Information
- Application Number
- CN202420786055.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The DC power screen is difficult to maintain power supply stability when the load power changes, and cannot effectively meet the power requirements of different loads.
A voltage-stable DC power screen is designed, including two power modules and corresponding switch modules. The load power is monitored in real time through the data acquisition module and the control module, and the working status of the switch module is controlled to ensure the switching and delayed shutdown of the power module. Filters, isolation transformers and fuses achieve stability and safety of power supply.
It effectively meets the power consumption needs of different power loads, ensures the stability and safety of power supply, avoids power waste and equipment damage, and improves the reliability and service life of the system.
Smart Images
Figure CN222339038U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electrical equipment, and in particular to a voltage-stabilized direct current power supply panel. Background Art
[0002] The DC power panel is an important part of the power supply system. Its main function is to distribute electrical energy to various loads. However, different loads have different powers. When the load changes, the DC power panel power supply is difficult to meet the load power change requirements. Utility Model Content
[0003] The disclosed embodiment provides a voltage-stabilized DC power supply panel to solve the problem that the stability of the power supply of the DC power supply panel is affected when the load changes.
[0004] In a first aspect, an embodiment of the present disclosure provides a voltage-stabilized DC power supply screen, comprising:
[0005] A first power module, a second power module, a first switch module, a second switch module, a control module, a first data acquisition module and a delay module;
[0006] The first power module is connected to the first switch module, the second power module is connected to the second switch module, and both the first switch module and the second switch module are connected to an external load;
[0007] The first data acquisition module is connected to the load and the control module respectively, and the control module is connected to the first switch module and the second switch module respectively through the delay module;
[0008] The first power module is configured to supply power to an external load whose total power is within a first range, and the second power module is configured to supply power to an external load whose total power is within a second range;
[0009] The first data acquisition module is configured to acquire the total power of the external load;
[0010] The control module is configured to control the working states of the first switch module and the second switch module respectively through the delay module according to the total power.
[0011] In an exemplary embodiment of the present disclosure, the delay module includes:
[0012] A first delay unit and a second delay unit;
[0013] The first delay unit is connected to the control module and the first switch module respectively; the second delay unit is connected to the control module and the second switch module respectively.
[0014] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0015] A first single-pole double-throw switch and a second single-pole double-throw switch;
[0016] The first single-pole double-throw switch has a fixed end connected to the control module, a first movable end connected to the first delay unit, and a second movable end connected to the first switch module;
[0017] The second single-pole double-throw switch has a fixed end connected to the control module, a first active end connected to the second delay unit, and a second active end connected to the second switch module.
[0018] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0019] A second data acquisition module;
[0020] The second data acquisition module is connected to the control module, and the second data acquisition module is connected to the first power module and the second power module respectively;
[0021] The second data acquisition module is configured to collect fault information of the first power module and the second power module;
[0022] The control module is configured to control the working states of the first switch module and the second switch module according to the fault information.
[0023] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0024] filter;
[0025] The first switch module and the second switch module are both connected to the filter, and the filter is connected to the external load.
[0026] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0027] Isolation transformer and fuses;
[0028] The isolation transformer has a first end connected to the first power module and the second power module respectively, and a second end connected to an external mains power system;
[0029] The fuse is arranged between the first switch module and the filter, and the fuse is also arranged between the second switch module and the filter.
[0030] In an exemplary embodiment of the present disclosure, the first data acquisition module includes:
[0031] A voltage acquisition unit and a current acquisition unit;
[0032] The voltage acquisition unit and the current acquisition unit are connected in parallel.
[0033] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0034] Alarm module;
[0035] The alarm module is connected to the control module; the control module is configured to control the alarm module to issue an early warning when an abnormality occurs in the total power collected by the first data collection module.
[0036] In an exemplary embodiment of the present disclosure, the voltage-stabilized DC power supply panel further includes:
[0037] Communication module;
[0038] The control module is connected to the terminal device through the communication module.
[0039] The embodiments of the present disclosure provide a stabilized DC power supply screen with the following beneficial effects:
[0040] On the one hand, the present disclosure provides two power supply modules, wherein the first power supply module supplies power to a low-power external load, and the second power supply module supplies power to a high-power external load. Providing two different power supply modules can meet the power requirements of different power loads.
[0041] On the other hand, the control module can control the working state of the first switch module and the second switch module according to the total power data of the load collected by the first data collection module. When the load power changes, the switch module corresponding to the power module that is not in the power supply state can be immediately turned on, and the switch module corresponding to the power module that is supplying power can be closed after a delay of a period of time to ensure the stability of power supply. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] 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.
[0043] Figure 1 It is a structural schematic diagram of a voltage-stabilized DC power supply panel provided by an embodiment of the present disclosure;
[0044] Figure 2It is a structural schematic diagram of a voltage-stabilized DC power supply screen provided in another embodiment of the present disclosure. DETAILED DESCRIPTION
[0045] 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.
[0046] 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.
[0047] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:
[0048] Figure 1 This is a schematic diagram of the structure of a voltage-stabilized DC power supply panel 10 provided in an embodiment of the present disclosure. Figure 1 , the voltage-stabilized DC power supply panel 10 comprises:
[0049] A first power module 101 , a second power module 102 , a first switch module 103 , a second switch module 104 , a control module 105 , a first data acquisition module 106 and a delay module 107 .
[0050] The first power module 101 is connected to the first switch module 103 , the second power module 102 is connected to the second switch module 104 , and both the first switch module 103 and the second switch module 104 are connected to an external load 108 .
[0051] The first data acquisition module 106 is connected to the load 108 and the control module 105 respectively. The control module 105 is connected to the first switch module 103 and the second switch module 104 respectively through the delay module 107 .
[0052] The first power module 101 is configured to supply power to an external load 108 whose total power is within a first range, and the second power module 102 is configured to supply power to an external load 108 whose total power is within a second range.
[0053] The first data acquisition module 106 is configured to acquire the total power of the external load 108 .
[0054] The control module 105 is configured to control the working states of the first switch module 103 and the second switch module 104 respectively according to the total power through the delay module 107 .
[0055] In this embodiment, the control module 105 is used to control the working state of the first switch module 103 and the second switch module 104 according to the total power collected by the first data acquisition module 106. When the first power module 101 cannot meet the power supply demand of the load 108, the control module 105 controls the first switch module 103 to be turned off and the second switch module 104 to be turned on. When the output power of the second power module 102 is much greater than the total power required by the load 108, the control module 105 controls the first switch module 103 to be turned on and the second switch module 104 to be turned off. When the first power module 101 or the second power module 102 alone cannot meet the requirements for supplying power to the load 108, the control module 105 controls the first switch module 103 and the second switch module 104 to be turned on.
[0056] In this embodiment, the first power module 101 is connected to the first switch module 103, and the first switch module 103 is connected to the external load 108; the second power module 102 is connected to the second switch module 104, and the second switch module 104 is connected to the external load 108. The control module 105 controls the working state of the first switch module 103 and the second switch module 104 according to the total power of the external load 108 collected by the first data collection module 106. A delay module 107 is connected between the control module 105 and the first switch module 103, and a delay module 107 is also connected between the control module 105 and the second switch module 104.
[0057] The first power module 101 is configured to supply power to the external load 108 when the total power of the external load 108 is within a first range; the second power module 102 is configured to supply power to the external load 108 when the total power of the external load 108 is within a second range. The power data within the second range is greater than the power data within the first range, and the data within the second range can be represented as high power, and the data within the first range can be represented as low power.
[0058] For example, the first power module 101 can supply power to a load 108 with a total power below 8 kW, and the second power module 102 can supply power to a load 108 with a total power above 8 kW and below 20 kW. In the initial state, the first power module 101 supplies power to the external load 108 through the first switch module 103, and the second switch module 104 is in a closed state. When the total power of the external load 108 suddenly changes from 4 kW to 10 kW, the first power module 101 cannot meet the power supply demand of the load 108. At this time, the control module 105 can control the second switch module 104 to open according to the total power of the load 108 collected by the first data collection module 106, and the control module 105 can also control the first switch module 103 to close.
[0059] If the initial state is that the second power module 102 supplies power to the external load 108 through the second switch module 104, the first switch module 103 is in a closed state. When the total power of the external load 108 suddenly changes from 15kW to 4kW, if the external load 108 is still supplied with power through the second power module 102, it is a waste of energy. At this time, the control module 105 can control the first switch module 103 to open according to the total power of the load 108 collected by the first data collection module 106, and control the second switch module 104 to close.
[0060] When the total power of the external load 108 changes from 4kW to 30kW, the power supply by the first power module 101 or the second power module 102 alone can no longer meet the demand, so the control module 105 can control the second switch module 104 to open while keeping the state of the first switch module 103 unchanged.
[0061] When the total power of the external load 108 changes from low power to high power, the control module 105 can open the second switch module 104 with zero delay, and can also close the first switch module 103 after a delay of a period of time through the delay module 107, so as to ensure the stability of the power supply to the external load 108. When the total power of the external load 108 changes from high power to low power, the control module 105 can open the first switch module 103 with zero delay, and can also close the second switch module 104 after a delay of a period of time through the delay module 107, so as to ensure the stability of the power supply to the external load 108.
[0062] The delay module 107 can be a delay device, such as a digital delay device, an analog delay device, a 555 timer, an RC delay circuit, etc. There are two modes inside the delay module 107, one is zero delay and the other is a specific delay time. When the control module 105 sends a zero delay signal to the delay module 107, the delay module 107 performs a zero delay task according to the received signal; when the control module 105 sends a signal to delay the specific time to the delay module 107, the delay module 107 performs a time delay task according to the received signal. When the delay time of the delay module 107 ends, the delay module 107 transmits the switch signal sent by the control module 105 to the first switch module 103 or the second switch module 104.
[0063] From the above, it can be concluded that, on the one hand, the present disclosure sets two power modules, wherein the first power module 101 is used to supply power to the low-power external load 108, and the second power module 102 is used to supply power to the high-power external load 108. Setting two different power modules can meet the power requirements of loads 108 with different powers.
[0064] On the other hand, the control module 105 can control the working state of the first switch module 103 and the second switch module 104 according to the total power data of the load 108 collected by the first data collection module 106. When the power of the load 108 changes, the switch module corresponding to the power module that is not in the power supply state can be immediately turned on, and the switch module corresponding to the power module that is supplying power can be turned off after a delay of a period of time to ensure the stability of power supply.
[0065] In one embodiment of the present disclosure, reference Figure 2 , the delay module 107 includes:
[0066] A first delay unit 201 and a second delay unit 202;
[0067] The first delay unit 201 is connected to the control module 105 and the first switch module 103 respectively; the second delay unit 202 is connected to the control module 105 and the second switch module 104 respectively.
[0068] In this embodiment, the delay module 107 includes a first delay unit 201 and a second delay unit 202. The control module 105 is connected to the first switch module 103 through the first delay unit 201, and is connected to the second switch module 104 through the second delay unit 202. The control module 105 can control the working state of the first switch module 103 and the second switch module 103 according to the change of the total power of the external load 108 collected by the first data collection module 106.
[0069] In this embodiment, the first delay unit 201 is used to adjust the action response time of the first switch module 103, and the second delay unit 202 is used to adjust the action response time of the second switch module 104 to ensure the stability of power supply.
[0070] In this embodiment, when the first power supply module 101 cannot meet the power demand of the load 108, the control module 105 controls the first delay unit 201 to delay the shutdown signal of the first switch module 103 for a period of time before sending it to the first switch module 103; at the same time, the control module 105 controls the second delay unit 202 to send the shutdown signal of the second switch module 104 to the second switch module 104 with zero delay.
[0071] When the power output by the second power supply module 102 is much greater than the total power required by the load 108, the control module 105 controls the first delay unit 201 to send the shutdown signal of the first switch module 103 to the first switch module 103 with zero delay; at the same time, the control module 105 controls the second delay unit 202 to delay the shutdown signal of the second switch module 104 for a period of time before sending it to the second switch module 104.
[0072] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0073] A first single-pole double-throw switch 203 and a second single-pole double-throw switch 204;
[0074] A first single-pole double-throw switch 203, a fixed end connected to the control module 105, a first movable end connected to the first delay unit 201, and a second movable end connected to the first switch module 103;
[0075] The second single-pole double-throw switch 204 has a fixed end connected to the control module 105 , a first movable end connected to the second delay unit 202 , and a second movable end connected to the second switch module 104 .
[0076] In this embodiment, the fixed ends of the first single-pole double-throw switch 203 and the second single-pole double-throw switch 204 are both connected to the control module 105. The first movable end of the first single-pole double-throw switch 203 is connected to the first delay unit 201, and the second movable end is connected to the first switch module 103; the first movable end of the second single-pole double-throw switch 204 is connected to the second delay unit 202, and the second movable end is connected to the second switch module 104.
[0077] The control module 105 can select the positions where the first single-pole double-throw switch 203 and the second single-pole double-throw switch 204 are closed according to the change in the total power of the external load 108 collected by the first data collection module 106. For example, when the total power of the external load 108 suddenly changes from 15kW to 4kW, the first single-pole double-throw switch 203 is connected to the second active end, and the first switch module 103 is directly closed without delay; the second single-pole double-throw switch 204 is connected to the first active end, and the second switch module 104 is closed after a delay for a period of time.
[0078] From the above, it can be concluded that the first single-pole double-throw switch 203 and the second single-pole double-throw switch 204 can be set to select whether to delay for a period of time before starting related operations, so that when the power of the load 108 changes, the power supply of the regulated DC power supply panel 10 is more stable.
[0079] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0080] A second data acquisition module 109;
[0081] The second data acquisition module 109 is connected to the control module 105, and the second data acquisition module 109 is connected to the first power module 101 and the second power module 102 respectively;
[0082] The second data acquisition module 109 is configured to collect fault information of the first power module 101 and the second power module 102;
[0083] The control module 105 is configured to control the working states of the first switch module 103 and the second switch module 104 according to the fault information.
[0084] In this embodiment, the second data acquisition module 109 is connected to the control module 105 and is configured to collect fault information of the first power module 101 and the second power module 102. When the first power module 101 fails, the control module 105 can control the first switch module 103 to disconnect and open the second switch module 104; when the second power module 102 fails, the control module 105 can control the second switch module 104 to disconnect and open the first switch module 103. This ensures that the regulated DC power supply panel 10 is in normal working condition.
[0085] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0086] Filter 110;
[0087] The first switch module 103 and the second switch module 104 are both connected to the filter 110 , and the filter 110 is connected to the external load 108 .
[0088] In this embodiment, a filter 110 is disposed between the first switch module 103 and the external load 108 , and a filter 110 is also disposed between the second switch module 104 and the external load 108 .
[0089] When the voltage-stabilized DC power supply panel 10 is working, ripples and noise may exist in the circuit. Ripple and noise are generated by factors such as the switching action of the first switch module 103 or the second switch module 104, line resistance, etc., which may have adverse effects on sensitive components in the circuit and may even cause circuit failure. Therefore, the use of the filter 110 can remove ripples and noise in the power supply and improve the stability and reliability of the power supply.
[0090] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0091] Isolation transformer 111 and fuse 112;
[0092] An isolation transformer 111, a first end of which is connected to the first power module 101 and the second power module 102 respectively, and a second end of which is connected to an external mains power system 113;
[0093] The fuse 112 is disposed between the first switch module 103 and the filter 110 . The fuse 112 is also disposed between the second switch module 104 and the filter 110 .
[0094] In this embodiment, the isolation transformer 111 is arranged between the external AC power system 113 and the first power module 101, and also between the external AC power system 113 and the second power module 102, for realizing electrical isolation between circuits, preventing current from flowing from the first power module 101 or the second power module 102 to the external AC power system 113, and protecting the equipment from damage.
[0095] The fuse 112 is disposed between the first switch module 103 and the filter 110, and is also disposed between the second switch module 104 and the filter 110. When a short circuit or overload occurs in the circuit, the fuse 112 can automatically cut off the power supply to prevent circuit damage and fire, thereby ensuring the safety and stability of the stabilized DC power supply panel 10 to a certain extent.
[0096] In one embodiment of the present disclosure, reference Figure 2 , the first data acquisition module 106 includes:
[0097] A voltage acquisition unit and a current acquisition unit;
[0098] The voltage acquisition unit and the current acquisition unit are connected in parallel.
[0099] In this embodiment, the first data acquisition module 106 includes a voltage acquisition unit and a current acquisition unit, the voltage acquisition unit is configured to acquire voltage parameters of the external load 108, and the current acquisition unit is configured to acquire current parameters of the external load 108. The first data acquisition module 106 can calculate the total power of the external load 108 according to the voltage parameters and the current parameters.
[0100] The voltage acquisition unit may be a voltage sensor, and the current acquisition unit may be a current sensor. There may be multiple voltage sensors and current sensors, and when a voltage sensor or a current sensor fails, other sensors may still work normally.
[0101] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0102] Alarm module 114;
[0103] The alarm module 114 is connected to the control module 105 ; the control module 105 is configured to control the alarm module 114 to issue an early warning when an abnormality occurs in the total power collected by the first data collection module 106 .
[0104] In this embodiment, when the control module 105 determines that the total power of the external load 108 collected by the first data acquisition module 106 exceeds the sum of the output powers of the first power module 101 and the second power module 102, the control alarm module 114 issues an early warning. Alternatively, when the control module 105 determines that the circuit where the external load 108 is located is short-circuited or open-circuited based on the data collected by the first data acquisition module 106, the control alarm module 114 issues an early warning.
[0105] The control module 105 may also control the alarm module 114 to issue an early warning according to the fault information of the first power module 101 and the second power module 102 collected by the second data collection module 109 .
[0106] It can be concluded from the above that setting the alarm module 114 can help technicians to conduct fault detection and related processing in a timely manner, thereby extending the service life of the equipment.
[0107] In one embodiment of the present disclosure, reference Figure 2 , the voltage-stabilized DC power supply screen 10 also includes:
[0108] Communication module 115;
[0109] The control module 105 is connected to the terminal device via the communication module 115 .
[0110] In this embodiment, the communication module 115 includes wireless communication and wired communication, and the terminal device includes a smart phone, a tablet, a laptop computer, a control terminal, etc. The control module 105 can send the operation status or fault status of the regulated DC power supply screen 10 to the mobile terminal through wireless communication, and can also send the operation status or fault status of the regulated DC power supply screen 10 to the control terminal through wired communication, so as to facilitate the technicians to record and troubleshoot.
[0111] 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 voltage-stabilized DC power supply panel, characterized in that: include: A first power module, a second power module, a first switch module, a second switch module, a control module, a first data acquisition module and a delay module; The first power module is connected to the first switch module, the second power module is connected to the second switch module, and both the first switch module and the second switch module are connected to an external load; The first data acquisition module is connected to the load and the control module respectively, and the control module is connected to the first switch module and the second switch module respectively through the delay module; The first power module is configured to supply power to an external load whose total power is within a first range, and the second power module is configured to supply power to an external load whose total power is within a second range; The first data acquisition module is configured to acquire the total power of the external load; The control module is configured to control the working states of the first switch module and the second switch module respectively through the delay module according to the total power.
2. The stabilized DC power supply panel according to claim 1, characterized in that: The delay module comprises: A first delay unit and a second delay unit; The first delay unit is connected to the control module and the first switch module respectively; the second delay unit is connected to the control module and the second switch module respectively.
3. The stabilized DC power supply panel according to claim 2, characterized in that: Also includes: A first single-pole double-throw switch and a second single-pole double-throw switch; The first single-pole double-throw switch has a fixed end connected to the control module, a first movable end connected to the first delay unit, and a second movable end connected to the first switch module; The second single-pole double-throw switch has a fixed end connected to the control module, a first active end connected to the second delay unit, and a second active end connected to the second switch module.
4. The stabilized DC power supply panel according to claim 1, characterized in that: Also includes: A second data acquisition module; The second data acquisition module is connected to the control module, and the second data acquisition module is connected to the first power module and the second power module respectively; The second data acquisition module is configured to collect fault information of the first power module and the second power module; The control module is configured to control the working states of the first switch module and the second switch module according to the fault information.
5. The stabilized DC power supply panel according to claim 1, characterized in that: Also includes: filter; The first switch module and the second switch module are both connected to the filter, and the filter is connected to the external load.
6. The voltage-stabilized DC power supply panel according to claim 5, characterized in that: Also includes: Isolation transformer and fuses; The isolation transformer has a first end connected to the first power module and the second power module respectively, and a second end connected to an external mains power system; The fuse is arranged between the first switch module and the filter, and the fuse is also arranged between the second switch module and the filter.
7. The stabilized DC power supply panel according to claim 1, characterized in that: The first data acquisition module comprises: A voltage acquisition unit and a current acquisition unit; The voltage acquisition unit and the current acquisition unit are connected in parallel.
8. The voltage-stabilized DC power supply panel according to claim 7, characterized in that: Also includes: Alarm module; The alarm module is connected to the control module; the control module is configured to control the alarm module to issue an early warning when an abnormality occurs in the total power collected by the first data collection module.
9. The stabilized DC power supply panel according to claim 1, characterized in that: Also includes: Communication module; The control module is connected to the terminal device through the communication module.