CN212750728U - Control panel - Google Patents
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- CN212750728U CN212750728U CN202020856220.5U CN202020856220U CN212750728U CN 212750728 U CN212750728 U CN 212750728U CN 202020856220 U CN202020856220 U CN 202020856220U CN 212750728 U CN212750728 U CN 212750728U
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Abstract
The utility model provides a control panel, which comprises a first DC/DC voltage stabilization unit, a DC/DC power supply unit, an AC/DC power supply unit, a central processing unit and a plurality of magnetic latching relay drive units; the output end of the DC/DC power supply unit or the output end of the AC/DC power supply unit is electrically connected with the input end of the first DC/DC voltage stabilizing unit and the power supply end of each magnetic latching relay driving unit; the output end of each magnetic latching relay driving unit is used for being correspondingly connected with a coil of a magnetic latching relay; the output end of the first DC/DC voltage stabilizing unit is electrically connected with the power supply end of the central processing unit; the central processing unit is in communication connection with each magnetic latching relay driving unit and is used for controlling at least one of the magnetic latching relay driving units to send a first pulse signal or a second pulse signal to a coil of the corresponding magnetic latching relay, so that the purposes of reducing the volume and the cost of power distribution equipment are achieved.
Description
Technical Field
The utility model belongs to the technical field of communication, more specifically say, relate to a control panel.
Background
The existing power distribution system comprises alternating current power distribution equipment, a renewable energy source unit, a controller unit, a commercial power unit, a generator set unit, a high-frequency switch power supply unit, first direct current power distribution equipment, a storage battery unit, second direct current power distribution equipment, a plurality of direct current power utilization equipment and a plurality of alternating current power utilization equipment. The renewable energy unit provides alternating current to the alternating current distribution device through the controller unit. The commercial power unit and the generator set unit directly supply alternating current to the alternating current distribution equipment. The AC power distribution apparatus distributes AC power to a high-frequency switching power supply unit and a plurality of AC consumers. The high-frequency switching power supply unit is used for converting alternating current into direct current. The storage battery unit comprises a plurality of storage battery packs, and direct current output by the high-frequency switching power supply unit is distributed to the storage battery packs through first direct current distribution equipment. At least one of the plurality of battery packs is used for supplying power to the high-frequency switching power supply unit through the first direct-current power distribution device. The direct current output by the high-frequency switching power supply unit is distributed to a plurality of direct current electric devices through the second direct current distribution device. An alternating current contactor is adopted in the alternating current distribution equipment for distribution control. And the first direct current distribution equipment and the second direct current distribution equipment adopt a direct current contactor and a direct current relay to carry out distribution control. The components of the ac contactor are bulky, which results in bulky and costly ac distribution equipment. Similarly, the dc contactor and the dc relay have large size, which results in large size and high cost of the first dc distribution equipment and the second dc distribution equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a control panel to solve the distribution equipment that exists among the prior art bulky and with high costs technical problem.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a control board including a first DC/DC voltage stabilization unit, a DC/DC power supply unit, an AC/DC power supply unit, a central processing unit, and a plurality of magnetic latching relay driving units;
the output end of the DC/DC power supply unit or the output end of the AC/DC power supply unit is electrically connected with the input end of the first DC/DC voltage stabilizing unit and the power supply end of each magnetic latching relay driving unit;
the output end of each magnetic latching relay driving unit is used for being correspondingly connected with a coil of a magnetic latching relay;
the output end of the first DC/DC voltage stabilizing unit is electrically connected with the power supply end of the central processing unit;
the central processing unit is in communication connection with each magnetic latching relay driving unit and is used for controlling at least one of the magnetic latching relay driving units to send out a first pulse signal or a second pulse signal to a coil of the corresponding magnetic latching relay, each first pulse signal enables a contact of the corresponding magnetic latching relay to be switched on, and each second pulse signal enables a contact of the corresponding magnetic latching relay to be switched off.
Further, the control board further comprises a second DC/DC voltage stabilizing unit and a communication module; the communication module is used for being connected with an upper computer in a communication mode, the output end of the second DC/DC voltage stabilizing unit is electrically connected to the power end of the communication module, the output end of the DC/DC power supply unit comprises a first voltage output end and a second voltage output end, and the AC/DC power supply unit comprises a first voltage output end and a second voltage output end;
a first voltage output end of the DC/DC power supply unit is electrically connected with an input end of a first DC/DC voltage stabilizing unit and a power supply end of each magnetic latching relay driving unit, and a second voltage output end of the DC/DC power supply unit is electrically connected with an input end of a second DC/DC voltage stabilizing unit;
or a first voltage output end of the AC/DC power supply unit is electrically connected to an input end of the first AC/DC voltage stabilizing unit and a power end of each magnetic latching relay driving unit, and a second voltage output end of the AC/DC power supply unit is electrically connected to an input end of the second DC/DC voltage stabilizing unit.
Further, the communication module is set as an RS485 chip, and the RS485 chip supports any one of a Modbus-RTU protocol and a free communication protocol.
Further, the control board further comprises an AD channel switching module;
the power supply end of the AD channel switching module is electrically connected to the output end of the first DC/DC voltage stabilizing module, and the AD channel switching module is in communication connection with the central processing unit.
Further, the control panel also includes a fault indication module, the fault indication module is connected with the central processing unit in a communication manner, and the central processing unit is also used for controlling the on or off of the fault indication module.
Further, the control panel also comprises a fault indicator light, the fault indicator light is electrically connected with the fault indication module, and when the fault indication module is started, the fault indicator light emits light.
Furthermore, the control panel also comprises a temperature analog input port, the temperature analog input port is used for connecting a temperature collector, and the output end of the temperature analog input port is electrically connected to the input end of the AD channel switching module.
Further, the control board further comprises a current analog input port, an input end of the current analog input port is used for being connected with an input end of the DC/DC power supply unit or an input end of the AC/DC power supply unit, and an output end of the current analog input port is electrically connected with an input end of the AD channel switching module.
Further, the control panel still includes wireless communication module, wireless communication module is used for with cloud platform communication connection, wireless communication module with central processing unit communication connection.
Furthermore, the control panel also comprises a dial switch which is in communication connection with the central processing unit and used for expanding the communication address of the control panel.
The utility model provides a pair of control panel's beneficial effect lies in: compared with the prior art, the control board can be connected with a plurality of magnetic latching relays and controls the switching-on or switching-off of each magnetic latching relay connected to the control board. Because this control panel need not connect direct current contactor, direct current relay and ac contactor, the ac distribution equipment and the dc consumer of having used this control panel only connect the magnetic latching relay carry out distribution control can, greatly reduced ac distribution equipment and dc distribution equipment's volume. Because the cost of the magnetic latching relay is lower than that of the direct current contactor, the direct current relay and the alternating current contactor, the cost of the alternating current distribution equipment and the cost of the direct current distribution equipment are greatly reduced. The DC/DC power supply unit directly supplies power to each of the magnetic latching relay driving units. The DC/DC power supply unit supplies power to the central processing unit through the first DC/DC voltage stabilizing unit. The first DC/DC voltage stabilizing unit can electrically isolate the central processing unit from each magnetic latching relay driving unit, thereby realizing the electrical isolation of the central processing unit from each magnetic latching relay and reducing the influence of each magnetic latching relay driving unit on the central processing unit when a fault occurs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a control panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control panel according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
111. a first DC/DC voltage stabilization unit; 112a, a DC/DC power supply unit; 112b, an AC/DC power supply unit; 113. a second DC/DC voltage stabilization unit; 12. a central processing unit; 13. a magnetic latching relay drive unit; 141. a communication module; 142. a wireless communication module; 15. an AD channel switching module; 161. a fault indication module; 162. a fault indicator light; 163. a relay state identification module; 171. a temperature analog input port; 172. a current analog input port; 173. a voltage sampling module; 18. a dial switch; 2. a power supply; 21. a negative electrode; 22. a positive electrode; 31. an execution circuit board; 4. and a voltage collection line.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2, a control board according to the present invention will now be described. A control board includes a first DC/DC voltage stabilization unit 111, a DC/DC power supply unit 112a, an AC/DC power supply unit 112b, a central processing unit 12, and a plurality of magnetic latching relay drive units 13;
the output terminal of the DC/DC power supply unit 112a or the output terminal of the AC/DC power supply unit 112b is electrically connected to the input terminal of the first DC/DC voltage stabilization unit 111 and the power supply terminal of each magnetic latching relay drive unit 13;
the output end of each magnetic latching relay driving unit 13 is used for being correspondingly connected with a coil of a magnetic latching relay;
the output terminal of the first DC/DC voltage stabilization unit 111 is electrically connected to the power supply terminal of the central processing unit 12;
the central processing unit 12 is communicatively connected to each of the latching magnetic relay driving units 13, and is configured to control at least one of the latching magnetic relay driving units 13 to send a first pulse signal or a second pulse signal to a coil of the corresponding latching magnetic relay, where each first pulse signal switches on and off a contact of the corresponding latching magnetic relay, and each second pulse signal switches off and off a contact of the corresponding latching magnetic relay.
The utility model provides a pair of control panel compares with prior art, and a plurality of magnetic latching relays can be connected to this control panel to each magnetic latching relay's of control connection on this control panel combined floodgate switches on or the separating brake disconnection. Because this control panel need not connect direct current contactor, direct current relay and ac contactor, the ac distribution equipment and the dc consumer of having used this control panel only connect the magnetic latching relay carry out distribution control can, greatly reduced ac distribution equipment and dc distribution equipment's volume. Because the cost of the magnetic latching relay is lower than that of the direct current contactor, the direct current relay and the alternating current contactor, the cost of the alternating current distribution equipment and the cost of the direct current distribution equipment are greatly reduced. The DC/DC power supply unit 112a directly supplies power to each of the magnetic latching relay driving units 13. The DC/DC power supply unit 112a supplies power to the central processing unit 12 through the first DC/DC voltage stabilization unit 111. The first DC/DC voltage stabilization unit 111 can electrically isolate the central processing unit 12 from each of the magnetic latching relay driving units 13, thereby electrically isolating the central processing unit 12 from each of the magnetic latching relays and reducing the influence of each of the magnetic latching relay driving units 13 on the central processing unit 12 when a failure occurs.
Specifically, the central processing unit 12 is set as a CPU or MCU. The DC/DC power supply unit 112a is provided as a DC/DC power supply circuit or a DC/DC power supply chip. The first DC/DC voltage stabilization unit 111 is provided as a first DC/DC voltage stabilization circuit or a first DC/DC voltage stabilization chip. Each magnetic latching relay driving unit 13 is provided as a first pulse chip or a first pulse circuit.
The central processing unit 12 controls each magnetic latching relay driving unit 13 to independently send out a first pulse signal or a second pulse signal, the central processing unit 12 simultaneously controls a plurality of magnetic latching relay driving units 13 to send out the first pulse signal or the second pulse signal, and the central processing unit 12 controls the magnetic latching relay driving units 13 of the part to send out the first pulse signal and simultaneously can also send out the second pulse signal to the magnetic latching relay driving units 13 of other parts.
Optimally, 10 or 20 magnetic latching relay drive units 13 are provided.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the control board provided by the present invention, the control board further includes a second DC/DC voltage stabilizing unit 113 and a communication module 141; the communication module 141 is used for being connected with an upper computer (not shown) in a communication mode, the output end of the second DC/DC voltage stabilizing unit 113 is electrically connected to the power end of the communication module 141, the output end of the DC/DC power supply unit 112a comprises a first voltage output end and a second voltage output end, and the AC/DC power supply unit 112b comprises a first voltage output end and a second voltage output end;
a first voltage output terminal of the DC/DC power supply unit 112a is electrically connected to the input terminal of the first DC/DC voltage stabilization unit 111 and the power supply terminal of each magnetic latching relay drive unit 13, and a second voltage output terminal of the DC/DC power supply unit 112a is electrically connected to the input terminal of the second DC/DC voltage stabilization unit 113;
or a first voltage output terminal of the AC/DC power supply unit 112b is electrically connected to an input terminal of the first AC/DC voltage stabilization unit and a power supply terminal of each magnetic latching relay driving unit 13, and a second voltage output terminal of the AC/DC power supply unit 112b is electrically connected to an input terminal of the second DC/DC voltage stabilization unit 113.
The second DC/DC voltage stabilization unit 113 electrically isolates the communication module 141 from each magnetic latching relay driving unit 13, thereby electrically isolating the communication module 141 from each magnetic latching relay, reducing the influence of each magnetic latching relay on the communication module 141 when a fault occurs, and reducing the influence of each magnetic latching relay when the fault occurs in the communication module 141. The second DC/DC voltage stabilizing unit 113 also electrically isolates the communication module 141 from the central processing unit 12, thereby reducing the influence on the central processing unit 12 when the communication module 141 fails.
Specifically, the upper computer is set as a monitoring platform or an FSU. The second DC/DC voltage stabilization unit 113 is provided as a second DC/DC voltage stabilization chip or a second DC/DC voltage stabilization circuit. The monitoring platform and the FSU can communicate with the control panel, so that the monitoring platform and the FSU can send control instructions to the control panel and call internal information of the control panel, and monitoring, management and control of the control panel are realized.
The DC/DC power supply unit 112a is optimally set as a DC/DC power supply isolation unit.
Optimally, the direct current voltage output by the first voltage output end is 12V. The direct current voltage output by the second voltage output end is 15V. The first DC/DC voltage stabilization unit 111 outputs a direct current voltage of 5V. The second DC/DC voltage stabilizing unit 113 outputs a DC voltage of 5V. The AC/DC power supply unit 112b inputs 220V alternating current. The DC/DC power supply unit 112a inputs 48V direct current.
Further, as the utility model provides a pair of a specific implementation of control panel, communication module 141 establishes to the RS485 chip, and the RS485 chip supports any one in Modbus-RTU agreement and the free communication agreement.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the control board provided by the present invention, the control board further includes an AD channel switching module 15;
the power supply end of the AD channel switching module 15 is electrically connected to the output end of the first DC/DC voltage stabilizing module, and the AD channel switching module 15 is communicatively connected to the central processing unit 12.
The AD channel switching module 15 facilitates the central processing unit 12 to collect analog signals.
Specifically, the control board further includes a voltage sampling module 173;
the voltage sampling module 173 is electrically connected to the input end of the AD channel switching module 15, and is configured to collect a voltage signal;
the power supply end of the AD channel switching module 15 is electrically connected to the output end of the first DC/DC voltage stabilizing module, and the AD channel switching module 15 is communicatively connected to the central processing unit 12.
The control panel collects voltage signals, and a user can conveniently process the collected voltage signals in the next step.
Optimally, the voltage sampling module 173 is used for collecting voltage signals of the contact control loops of the magnetic latching relays; the AD channel switching module 15 is configured to receive that the first working voltage is in a sampling state to convert each voltage signal into corresponding real-time detection information; the central processing unit 12 is also used for receiving various detection information. The detection information is convenient for obtaining the voltage of the control loop of each magnetic latching relay.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the control panel provided by the present invention, the control panel further includes a fault indication module 161, the fault indication module 161 is in communication connection with the central processing unit 12, and the central processing unit 12 is further configured to control the opening or closing of the fault indication module 161.
When the fault indication module 161 is turned on, the fault indication module 161 plays a role of reminding a user, so as to remind the user to maintain the control board or the related equipment connected with the control board.
Specifically, the control board further includes a relay state identification module 163, the relay state identification module 163 being communicatively connected to the central processing unit 12;
the relay state identification module 163 is used for detecting the real-time working state information of each magnetic latching relay and sending the information to the central processing unit 12;
when the central processing unit 12 receives the real-time working state information, the central processing unit 12 determines whether any detection information is different from the corresponding real-time working state information, and if the any detection information is different from the corresponding real-time working state information, the fault indication module 161 is started to send out fault information; if any of the detection information is not different from the corresponding real-time operating status information, the fault indication module 161 is turned off and does not send out fault information.
The relay state recognition module 163 recognizes opening/closing of each magnetic latching relay in real time. The real-time working state information comprises a first preset voltage and a second preset voltage. Each magnetic latching relay transmits a corresponding first preset voltage to the central processing unit 12 when the magnetic latching relay is switched on. Each magnetic latching relay sends a corresponding second preset voltage to the central processing unit 12 when the opening is switched off. When each magnetic latching relay is switched on, the corresponding first preset voltage is the same as the corresponding detection information, and when each magnetic latching relay is switched off, the corresponding second preset voltage is the same as the corresponding detection information, and at this time, the fault indication module 161 does not send out fault information. When any magnetic latching relay is switched on, the corresponding first preset voltage is different from the corresponding detection information, or when any magnetic latching relay is switched off, the corresponding second preset voltage is different from the corresponding detection information, and then the fault indication module 161 sends out fault information.
Further, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the control panel provided by the present invention, the control panel further includes a fault indicator 162, the fault indicator 162 is electrically connected to the fault indicator 161, and when the fault indicator 161 is turned on, the fault indicator 162 emits light.
The malfunction indicator lamp 162 serves to quickly remind the user.
Specifically, if any of the detection information is different from the corresponding real-time operating status information, the fault indication module 161 causes the fault indicator 162 to emit light; if any of the detected information is not different from the corresponding real-time operating status information, the fault indication module 161 does not illuminate the fault indicator 162. Through fault indicator 162, the user of being convenient for can learn fast that the magnetic latching relay who connects at this control panel breaks down to the user of being convenient for goes on examining and changing the magnetic latching relay who connects at this control panel.
Further, please refer to fig. 1 and fig. 2 together, as the utility model provides a specific implementation of a control panel, the control panel still includes temperature analog input port 171, and temperature analog input port 171 is used for connecting the temperature collector, and the output electricity of temperature analog input port 171 is connected in the input of AD passageway switching module 15, and the user of being convenient for collects the relevant information of temperature.
The temperature analog input port 171 is configured to send a temperature analog signal of the temperature collector to the AD channel switching module 15; the AD channel switching module 15 is further configured to convert the temperature analog signal into temperature digital information and send the temperature digital information to the central processing unit 12, and by collecting the temperature digital information, the central processing unit 12 is facilitated to execute a corresponding first operation instruction according to the temperature digital information, specifically, the first operation instruction is set as: and comparing the temperature digital information with a preset temperature threshold value, and controlling the opening and closing of each magnetic latching relay.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the present invention, the control board further includes a current analog input port 172, an input end of the current analog input port 172 is used for connecting an input end of the DC/DC power unit 112a or an input end of the AC/DC power unit 112b, and an output end of the current analog input port 172 is electrically connected to an input end of the AD channel switching module 15.
Specifically, the current analog input port 172 is used for acquiring a first input current signal at the input terminal of the DC/DC power supply unit 112a or a second input current signal at the input terminal of the AC/DC power supply unit 112 b;
the current analog input port 172 is configured to send the first input current signal or the second input current signal to the AD channel switching module 15;
the AD channel switching module 15 is further configured to convert the first input current signal or the second input current signal into current digital information, and send the current digital information to the central processing unit 12.
By collecting the current digital information, the central processing unit 12 can execute the corresponding second operation instruction according to the current digital information, so as to display, transmit and store the current digital information. Specifically, the second operation instruction is set as: and comparing the current digital information with a preset temperature threshold value, and controlling the opening and closing of each magnetic latching relay.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the control board provided by the present invention, the control board further includes a wireless communication module 142, the wireless communication module 142 is used for being connected to the cloud platform in a communication manner, and the wireless communication module 142 is connected to the central processing unit 12 in a communication manner.
The control panel can communicate with the cloud platform, so that the cloud platform sends control instructions to the control panel and calls internal information of the control panel, and monitoring, management and control of the control panel are realized.
Specifically, the control instruction includes a first operation instruction and a second operation instruction. The internal information includes various detection information, fault information, temperature digital information, and current digital information.
Further, please refer to fig. 1 and fig. 2 together, as a specific embodiment of the present invention, the control panel further includes a dial switch 18, the dial switch 18 is in communication connection with the central processing unit 12, and is used for expanding the communication address of the control panel, so as to distinguish different control panels, and facilitate the user to monitor, transmit and control different control panels.
Specifically, a user monitors, transmits and controls different control panels through a cloud platform or/and an upper computer.
Further, as a specific embodiment of the present invention, the CPU 12 is a CPU or an MCU.
Further, please refer to fig. 3 and fig. 4 together, which are a specific embodiment of the control board according to the present invention, further including a plurality of arc extinguishing devices;
the control module is used for controlling the switching-on or switching-off of each magnetic latching relay;
each arc extinguishing device corresponds to the magnetic latching relay one by one, and each arc extinguishing device is provided with a first end and a second end;
the pulse input terminal of each magnetic latching relay is electrically connected with the control module, and each magnetic latching relay is used for corresponding to the electric equipment one by one, wherein each electric equipment is provided with a positive electrode 22 power supply end and a negative electrode power supply end;
the contact of each magnetic latching relay is provided with a first terminal and a second terminal, and each first terminal is used for connecting the positive pole 22 of the power supply 2 or the negative pole 21 of the power supply 2; the first end of each arc extinguishing device is electrically connected with the corresponding second terminal, and the second ends of all the arc extinguishing devices are grounded; when each first terminal is connected to the positive electrode 22 of the power supply 2, each second terminal is used for connecting the positive electrode power source end of the corresponding electric equipment; or when each first terminal is used for connecting the negative electrode 21 of the power supply source 2, the second terminal is used for connecting the negative electrode power source end of the corresponding electric equipment.
To facilitate understanding: the magnetic latching relay is provided with 10, and the coils of 10 magnetic latching relays are sequentially set as follows: KA1, KA2, KA3 … … KA10, the contacts of 10 magnetic latching relays are K1, K2, and K3 … … K10 in this order.
The number of the arc extinguishing devices is 10, and the 10 arc extinguishing devices are sequentially arranged as C1, C2 and C3 … … C10.
The contact K1 of the magnetic latching relay corresponds to the arc extinguishing device C1, the contact K2 of the magnetic latching relay corresponds to the arc extinguishing device C2, the contact K3 of the magnetic latching relay corresponds to the arc extinguishing device C3, and so on.
Instructions for use: when each first terminal is connected to the positive pole 22 of the power supply 2, the positive power supply terminal of the electric equipment is electrically connected to the second terminal of the contact of the corresponding magnetic latching relay, and the negative power supply terminal of the electric equipment is electrically connected to the negative pole 21 of the power supply 2. When the contact of the magnetic latching relay corresponding to the electric equipment is switched on, the electric equipment, the power supply 2 and the corresponding contact of the magnetic latching relay form a loop, the power supply 2 supplies power to the electric equipment, and the electric equipment works normally. When the contact of the magnetic latching relay corresponding to the electric equipment is switched off, the electric equipment, the power supply source 2 and the contact of the corresponding magnetic latching relay do not form a loop, and the power supply source 2 cannot supply power to the electric equipment.
When each first terminal is used for connecting the negative electrode 21 of the power supply 2, the negative electrode power source end of the electric equipment is connected to the corresponding second terminal, and the positive electrode power source end of the electric equipment is grounded.
The magnetic latching relay has small volume, and the volume of the power distribution module is greatly reduced. When the magnetic latching relay is switched on or switched off, the control module is required to send a corresponding pulse signal, the magnetic latching relay does not need electric energy in the working process, the magnetic latching relay keeps the switching on or the switching off by means of the magnetic force of the magnetic latching relay, and compared with an alternating current contactor, a direct current contactor, an alternating current relay and a direct current relay, the magnetic latching relay needs electric energy to maintain in the working process, and the power consumption of a power distribution system is greatly reduced. When each first terminal is connected to the positive electrode 22 of the power supply 2, when the contact of the magnetic latching relay corresponding to the electric equipment is switched on or off, the electric quantity of the negative electrode 21 of the power supply 2 is consumed by the electric equipment, the electric quantity flowing out from the positive electrode power source end of the electric equipment is very small, and the electric quantity flowing out from the positive electrode power source end of the electric equipment is not easy to cause the contact of the magnetic latching relay to generate electric arc at the moment of switching on or switching off. The arc extinguishing devices are isolated from direct current, but in the moment that the contact of the relay corresponding to each arc extinguishing device is opened and closed, the contact of the relay can trigger the corresponding arc extinguishing device to react, and the arc extinguishing devices output high-energy pulse voltage signals to corresponding electric equipment, so that the voltage at two ends of the contact of the corresponding relay is smaller than arc burning voltage, and the contact of the relay can not generate electric arc in the moment that the opening and closing are closed, thereby achieving the arc extinguishing effect.
Specifically, when each first terminal is used to connect the negative pole 21 of the power supply 2, the voltage output by the negative pole 21 of the power supply 2 is set to-48V, and the output voltage of the positive pole 22 of the power supply 2 is set to 0V, and at this time, the second ends of all the arc extinguishing devices are connected to the positive pole 22 of the power supply 2.
Preferably, the second terminals of all arc extinguishing devices are connected to the output of the positive bank, and the positive pole 22 of the power supply 2 is connected to the input of the positive bank.
Further, please refer to fig. 3 and fig. 4 together, as a specific embodiment of the control board provided by the present invention, all the magnetic latching relays are disposed on the execution circuit board 31 or the control board, and the magnetic latching relays have small volume and can be disposed on the same execution circuit board 31 or the same control board.
Furthermore, as a specific implementation manner of the control panel provided by the present invention, the arc extinguishing device is a capacitor or an RC arc extinguisher, the capacitor has low cost and small volume; the RC arc extinguisher has better arc extinguishing effect.
Specifically, the capacitor is an electrolytic capacitor.
Further, please refer to fig. 3 and fig. 4 together, which are a specific embodiment of the control board according to the present invention, further including a plurality of load protection switch devices;
each load protection switch device corresponds to the magnetic latching relay one by one, and each load protection switch device is provided with a first end and a second end;
when the first terminals are connected to the anode 22 of the power supply 2, the first ends of all the load protection switch devices are connected to the cathode 21 of the power supply 2, and the second ends of all the load protection switch devices are connected to the cathode power supply end of the corresponding electric equipment; or when each first terminal is used for connecting the negative pole 21 of the power supply 2, each load protection switching device is connected in series between the contact of the corresponding magnetic latching relay and the corresponding electric equipment. For convenience of understanding, the load protection switch devices are provided with 10, and the 10 load protection switch devices are sequentially set as follows: QF1, QF2, QF3, … … QF 10. The load protection switching device QF1 corresponds to the contact K1 of the magnetic latching relay, the load protection switching device QF2 corresponds to the contact K2 of the magnetic latching relay, the load protection switching device QF3 corresponds to the contact K3 of the magnetic latching relay, and so on.
Each load protection switching device has an overload protection function and a short-circuit protection function, and plays a role in protecting corresponding electric equipment and a corresponding magnetic latching relay.
Further, please refer to fig. 3 and fig. 4 together, as the utility model provides a specific implementation of a control panel, still including a plurality of voltage acquisition lines 4, each voltage acquisition line 4 and magnetic latching relay one-to-one, voltage sampling module 173 has a plurality of inputs, each voltage acquisition line 4 and AD passageway switching module 15's input one-to-one, each voltage acquisition line 4's one end electricity is connected between the consumer that corresponds and the load protection switching device that corresponds, each voltage acquisition line 4's the other end is connected in the input of the voltage sampling module 173 that corresponds.
The voltage flowing into the corresponding electric device is sampled by each voltage collecting line 4, so that the sampled voltage can be further processed conveniently.
Specifically, when each first terminal is connected to the positive electrode 22 of the power supply 2, one end of each voltage collection wire 4 is electrically connected between the negative power source terminal of the corresponding electrical equipment and the corresponding load protection switching device. When each first terminal is used for connecting the negative electrode 21 of the power supply 2, one end of each voltage collecting line 4 is electrically connected between the positive electrode power source end of the corresponding electric equipment and the corresponding load protection switching device.
Specifically, the control board includes an acquisition chip (not shown) corresponding to each voltage acquisition line 4 one to one or an acquisition circuit (not shown) corresponding to each voltage acquisition line 4 one to one. When the control board includes a plurality of acquisition chips, the voltage acquisition lines 4 are electrically connected to the corresponding acquisition chips. When the control board includes a plurality of acquisition circuits, the voltage acquisition lines 4 are electrically connected to the corresponding acquisition circuits.
Optimally, the control board is used to collect the voltage in real time.
Further, as the utility model provides a concrete implementation of a control panel, all load protection switching devices establish to first circuit breaker or first fuse.
Further, please refer to fig. 3, which is a specific embodiment of the control panel according to the present invention, further comprising a control power protection switch device QF12, wherein the control power protection switch device QF12 has a first end and a second end, the first end of the control power protection switch device QF12 is used for connecting the negative electrode 21 of the power supply 2, and the second end of the control power protection switch device QF12 is used for connecting the negative electrode power terminal of the control module.
The control power protection switching device QF12 has an overload protection function and a power-off protection function. When the current and voltage input to the control panel by the power supply 2 are too large, the control power supply protection switching device QF12 can be quickly disconnected, and the control panel is protected in time.
Further, as a specific embodiment of the control panel provided by the present invention, the control power protection switching device QF12 is set as a second circuit breaker or a second fuse.
Further, as the utility model provides a specific implementation of a control panel still includes input protection switching device QF11, and input protection switching device QF11 establishes ties on power supply 2's negative pole 21, and when power supply 2's negative pole 21's electric current was too big, input protection switching device QF11 can break off fast, avoids power supply 2's negative pole 21's electric current too big and damage the consumer.
Specifically, the input protection switching device QF11 is set as a third circuit breaker or a third fuse.
Further, referring to fig. 1 and fig. 2, as an embodiment of the control board provided by the present invention, when the output terminal of the AC/DC power unit 112b is electrically connected to the input terminal of the first DC/DC voltage stabilizing unit 111, the AC power is connected to the input terminal of the AC/DC power unit 112 b. When the output terminal of the DC/DC power supply unit 112a is electrically connected to the input terminal of the first DC/DC voltage stabilization unit 111, and the power supply 2 is a DC power supply, the electric device is a DC electric device, and the DC power supply is connected to the input terminal of the DC/DC power supply unit 112 a.
Specifically, the AC/DC power supply unit 112b is provided as an AC/DC chip or an AC/DC circuit.
Optimally, the alternating current power supply is set to be a 220V system, and the alternating current electric equipment comprises an alternating current motor or an alternating current charging pile.
Specifically, the DC/DC power supply unit 112a is provided as a DC/DC chip or a DC/DC circuit.
Optimally, the direct current power supply is set as a-48V system, and the direct current electric equipment is set as communication equipment.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A control board is characterized by comprising a first DC/DC voltage stabilizing unit, a DC/DC power supply unit, an AC/DC power supply unit, a central processing unit and a plurality of magnetic latching relay driving units;
the output end of the DC/DC power supply unit or the output end of the AC/DC power supply unit is electrically connected with the input end of the first DC/DC voltage stabilizing unit and the power supply end of each magnetic latching relay driving unit;
the output end of each magnetic latching relay driving unit is used for being correspondingly connected with a coil of a magnetic latching relay;
the output end of the first DC/DC voltage stabilizing unit is electrically connected with the power supply end of the central processing unit;
the central processing unit is in communication connection with each magnetic latching relay driving unit and is used for controlling at least one of the magnetic latching relay driving units to send out a first pulse signal or a second pulse signal to a coil of the corresponding magnetic latching relay, each first pulse signal enables a contact of the corresponding magnetic latching relay to be switched on, and each second pulse signal enables a contact of the corresponding magnetic latching relay to be switched off.
2. The control board of claim 1, further comprising a second DC/DC voltage stabilization unit and a communication module; the communication module is used for being connected with an upper computer in a communication mode, the output end of the second DC/DC voltage stabilizing unit is electrically connected to the power end of the communication module, the output end of the DC/DC power supply unit comprises a first voltage output end and a second voltage output end, and the AC/DC power supply unit comprises a first voltage output end and a second voltage output end;
a first voltage output end of the DC/DC power supply unit is electrically connected with an input end of a first DC/DC voltage stabilizing unit and a power supply end of each magnetic latching relay driving unit, and a second voltage output end of the DC/DC power supply unit is electrically connected with an input end of a second DC/DC voltage stabilizing unit;
or a first voltage output end of the AC/DC power supply unit is electrically connected to an input end of the first AC/DC voltage stabilizing unit and a power end of each magnetic latching relay driving unit, and a second voltage output end of the AC/DC power supply unit is electrically connected to an input end of the second DC/DC voltage stabilizing unit.
3. The control board of claim 2, further comprising an AD channel switching module;
the power supply end of the AD channel switching module is electrically connected to the output end of the first DC/DC voltage stabilizing module, and the AD channel switching module is in communication connection with the central processing unit.
4. The control panel of claim 3, further comprising a fault indication module communicatively coupled to the central processing unit, the central processing unit further configured to control the turning on or off of the fault indication module.
5. The control board of claim 4, further comprising a fault indicator light electrically connected to the fault indicator module, wherein the fault indicator light illuminates when the fault indicator module is turned on.
6. The control board of claim 3, further comprising a temperature analog input port, wherein the temperature analog input port is used for connecting a temperature collector, and an output end of the temperature analog input port is electrically connected to an input end of the AD channel switching module.
7. The control board of claim 3, further comprising a current analog input port, an input of the current analog input port is used for connecting an input of the DC/DC power supply unit or an input of the AC/DC power supply unit, and an output of the current analog input port is electrically connected to an input of the AD channel switching module.
8. The control board of claim 1, further comprising a wireless communication module for communicative coupling with a cloud platform, the wireless communication module communicatively coupled with the central processing unit.
9. The control panel of claim 1, further comprising a dip switch communicatively coupled to the central processing unit for extending a communications address of the control panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020856220.5U CN212750728U (en) | 2020-05-20 | 2020-05-20 | Control panel |
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| CN202020856220.5U CN212750728U (en) | 2020-05-20 | 2020-05-20 | Control panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871253A (en) * | 2021-10-15 | 2021-12-31 | 深圳英飞源技术有限公司 | Relay tensile arc circuit and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871253A (en) * | 2021-10-15 | 2021-12-31 | 深圳英飞源技术有限公司 | Relay tensile arc circuit and control method |
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