CN212231094U - A low-cost high-power intelligent control DC power distribution system - Google Patents

Abstract

The utility model provides a low-cost and high-power intelligent control direct current power distribution system, comprising a control module, an on-off unit, a plurality of first magnetic holding relay elements, and a one-to-one correspondence with each first magnetic holding relay element The second magnetic latching relay element; the pulse input terminals of all the first magnetic latching relay elements and the pulse input terminals of all the second magnetic latching relay elements are electrically connected to the control module; the on-off unit is used to control all the first magnetic latching relay elements One end of the contacts of the relay element is connected or disconnected to the power supply at the same time, and is also used to control one end of the contacts of all the second magnetic latching relay elements to be connected to or disconnected from the power supply at the same time; the first magnetic latching relay The other end of the contact of the electrical element is connected to the node with the other end of the contact of the corresponding second magnetic latching relay element, and each node is used for one-to-one correspondence with the electrical equipment and is used to connect the power-on of the corresponding electrical equipment To achieve the purpose of reducing the size and cost of power distribution equipment.

Description

A low-cost high-power intelligent control DC power distribution system

technical field

The utility model belongs to the technical field of communication, and more particularly relates to a low-cost and high-power intelligent control direct current power distribution system.

Background technique

Referring to FIG. 1, the existing power distribution system includes an AC power distribution device 101, a renewable energy unit 102, a controller unit 103, a mains unit 104, a generator unit 105, a high-frequency switching power supply unit 106, a first DC The power distribution equipment 107 , the storage battery unit 108 , the second DC power distribution equipment 109 , a plurality of DC electrical equipment 1010 , and a plurality of AC electrical equipment 1011 . The renewable energy unit 102 supplies the AC power distribution equipment 101 with AC power through the controller unit 103 . The mains unit 104 and the genset unit 105 provide AC power directly to the AC power distribution equipment 101 . The AC power distribution device 101 distributes the AC power to the high-frequency switching power supply unit 106 and the plurality of AC power consumers 1011 . The high-frequency switching power supply unit 106 is used to convert alternating current into direct current. The battery unit 108 includes a plurality of battery packs, and the DC power output by the high-frequency switching power supply unit 106 is distributed to the plurality of battery packs through the first DC power distribution device 107 . At least one of the plurality of battery packs is used to supply power to the high-frequency switching power supply unit 106 through the first DC power distribution device 107 . The DC power output by the high-frequency switching power supply unit 106 is distributed to a plurality of DC power consumers 1010 through the second DC power distribution device 109 . An AC contactor is used in the AC power distribution equipment 101 for power distribution control. The first DC power distribution device 107 and the second DC power distribution device 109 use a DC contactor and a DC relay for power distribution control. Since the components of the AC contactor are bulky, the AC power distribution equipment 101 is bulky and costly. Similarly, due to the large size of the DC contactor and the DC relay, the first DC power distribution device 107 and the second DC power distribution device 109 are bulky and costly.

Utility model content

The purpose of the utility model is to provide a low-cost and high-power intelligent control DC power distribution system to solve the technical problems of large size and high cost of power distribution equipment in the prior art.

In order to achieve the above purpose, the technical solution adopted by the present invention is to provide a low-cost and high-power intelligent control DC power distribution system, including a control module, an on-off unit, a plurality of first magnetic latching relay elements, and a The first magnetic latching relay element is one-to-one corresponding to the second magnetic latching relay element;

The control module is used to control the closing on or opening of each of the first magnetic latching relay elements and each of the second magnetic latching relay elements;

The pulse input terminals of all the first magnetic latching relay elements and the pulse input terminals of all the second magnetic latching relay elements are electrically connected to the control module;

The on-off unit is used to control one end of the contacts of all the first magnetic latching relay elements to be connected or disconnected from the power supply at the same time, and is also used to control the contacts of all the second magnetic latching relay elements. One end is connected or disconnected from the power supply at the same time;

The other end of the contact of the first magnetic latching relay element and the other end of the contact of the corresponding second magnetic latching relay element are connected to nodes, and each of the nodes is used for one-to-one correspondence with the electrical equipment And it is used to connect the power-on end of the corresponding electrical equipment.

Further, the on-off unit includes a first relay and a second relay;

One end of the contacts of the first relay is electrically connected to the power supply, and the other end of the contacts of the first relay is electrically connected to one end of the contacts of all the first magnetic latching relay elements;

One end of the contacts of the second relay is electrically connected to the power supply, and the other ends of the contacts of the second relay are electrically connected to one end of the contacts of all the second magnetic latching relay elements.

Further, the control module is also used to control the closing conduction or opening cutoff of the first relay, and is also used to control the closing conduction or opening cutoff of the second relay;

The coil of the first relay and the coil of the second relay are electrically connected to the control module.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a plurality of first diodes, each of the first diodes corresponds to the first magnetic latching relay element one-to-one, and each of the first diodes corresponds to the first magnetic latching relay element. The positive terminal of the first diode is electrically connected to the other end of the contact of the corresponding first magnetic latching relay element, and the negative terminal of each of the first diodes is electrically connected to the corresponding node.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a plurality of second diodes, and each of the second diodes corresponds to the second magnetic latching relay element one-to-one;

The positive terminal of each of the second diodes is electrically connected to the other end of the contact of the corresponding second magnetic latching relay element, and the negative terminal of each of the second diodes is electrically connected to the corresponding node.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a plurality of power protection switch devices, each of the power protection switch devices corresponds to the node one-to-one, and each of the power protection switch devices is It has a first end and a second end, the first end of each power protection switch device is electrically connected to the corresponding node, and the other end of each power protection switch device is electrically connected to the corresponding power supply The power-on side of the device.

Further, the control module is also used for sampling voltage, the control module includes a plurality of control voltage sampling terminals, and the low-cost and high-power intelligent control DC power distribution system further includes a plurality of voltage sampling lines, each of the voltage sampling terminals. The sampling lines are in one-to-one correspondence with the power protection switch devices, the voltage sampling lines are in one-to-one correspondence with the control voltage sampling terminals, and one end of each voltage sampling line is electrically connected to the corresponding power protection switch At the second end of the device, the other end of each of the voltage sampling lines is electrically connected to the corresponding control voltage sampling end.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a general protection switch device, and the general protection switch device has a first end and a second end;

The on-off unit is also used to control one end of the contacts of all the first magnetic holding relay elements to connect or disconnect the first end of the total protection switch device at the same time, and is also used to control all the first One end of the contacts of the two magnetic holding relay elements is connected or disconnected at the same time at the first end of the total protection switch device;

The second end of the general protection switching device is electrically connected to the power supply.

Further, the control module further includes a positive power terminal and a negative power terminal, the positive power terminal of the control module is used to connect the power supply, and the negative power terminal of the control module is used to connect the power supply or ground.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a control module power protection switch device, the control module power protection switch device has a first end and a second end, and the control module power protection switch device. The first end of the control module is electrically connected to the positive power supply end of the control module, and the second end of the power protection switch device of the control module is electrically connected to the power supply.

Further, the low-cost and high-power intelligent control DC power distribution system further includes a control module power protection switch device, the control module power protection switch device has a first end and a second end, and the control module power protection switch device. The first end of the control module is electrically connected to the positive power supply end of the control module, and the second end of the power protection switching device of the control module is electrically connected to the negative line of the power supply.

The beneficial effect of the low-cost and high-power intelligent control DC power distribution system provided by the utility model is: compared with the prior art, the volume of the first magnetic-holding relay element and the second magnetic-holding relay element of the present utility model is smaller than that of the prior art. Small, greatly reducing the volume of the power distribution system. When it is necessary to make the first magnetic latching relay element corresponding to each electrical equipment on or off, first disconnect the contacts of all the first magnetic latching relay elements from the power supply through the on-off unit. Then through the control module, the contacts of the first magnetic latching relay element are turned on or off to ensure that the contacts of the first magnetic latching relay element can be switched on or off in the state of no current and voltage. The gate is turned off, so that the contact of the first magnetic holding relay element will not generate an arc at the moment when the closing is turned on or the opening is turned off, so that the contact of the first magnetic holding relay is not damaged by the arc, which improves the first The service life of the magnetic latching relay element. When it is necessary to make the second magnetic latching relay element corresponding to each electrical equipment switch on or off, first disconnect the contacts of all the second magnetic latching relay elements from the power supply through the on-off unit. Then through the control module, the contacts of the second magnetic latching relay element are turned on or off to ensure that the contacts of the second magnetic latching relay element can be switched on or off in the state of no current and voltage. The gate is cut off, so that the contact of the second magnetic holding relay element will not generate an arc at the moment when the closing is turned on or the opening is cut off, so that the contact of the second magnetic holding relay is not damaged by the arc, which improves the second The service life of the magnetic latching relay element. When the first magnetic latching relay element and the second magnetic latching relay element are turned on or off, the control module needs to send the corresponding pulse signal. The first magnetic latching relay element and the second magnetic latching relay element The electrical element does not need electric energy during the working process. The first magnetic latching relay element relies on its own magnetic force to keep the closing on or off, and the second magnetic latching relay element relies on its own magnetic force to keep the closing on or off. At the end of the day, compared with AC contactors, DC contactors, AC relays and DC relays, which require power maintenance during operation, the first magnetic latching relay element and the second magnetic latching relay element greatly reduce the power of the power distribution system. consumption.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present utility model. For some novel embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the prior art;

2 is a schematic structural diagram 1 of a low-cost and high-power intelligent control DC power distribution system provided by an embodiment of the present invention;

3 is a second schematic structural diagram of a low-cost and high-power intelligent control DC power distribution system provided by an embodiment of the present invention;

FIG. 4 is a third structural schematic diagram of a low-cost and high-power intelligent control DC power distribution system provided by an embodiment of the present invention.

Among them, each reference sign in the figure:

111, the first DC/DC voltage stabilization unit; 112a, the DC/DC power supply unit; 112b, the AC/DC power supply unit; 113, the second DC/DC voltage stabilization unit; 12, the central processing unit; 13, the magnetic latching relay drive unit; 131, first magnetic latching relay drive unit; 132, second magnetic latching relay drive unit; 141, communication module; 142, wireless communication module; 15, AD channel switching module; 161, fault indication module; 162, fault indication Lamp; 163, Relay Status Recognition Module; 171, Temperature Analog Input Port; 172, Current Analog Input Port; 173, Voltage Sampling Module; 18, DIP Switch; 191, Control Voltage Sampling Terminal; 2, Power Supply; 21 , negative line; 22, positive line; 31, executive circuit board; 4a, voltage sampling line; 5a, control power protection switch device; 6a, input protection switch device; KM1, the coil of the first relay; km1, the first relay Contact; KM2, the coil of the second relay; km2, the contact of the second relay; Q1, the main protection switch device; Q2, the control module power protection switch device; 101, AC power distribution equipment; 102, Renewable energy unit; 103, controller unit; 104, mains unit; 105, generator unit; 106, high frequency switching power supply unit; 107, first DC power distribution equipment; 108, battery unit; 109, second DC power distribution equipment; 1010. DC electrical equipment; 1011. AC electrical equipment.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or 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 indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

Referring to FIG. 2 , a low-cost and high-power intelligent control DC power distribution system provided by the present invention will now be described. A low-cost and high-power intelligent control DC power distribution system, comprising a control module, an on-off unit, a plurality of first magnetic holding relay elements, and a second magnetic holding relay corresponding to each first magnetic holding relay element one-to-one. electrical components;

The control module is used to control the closing-on or opening-off of each first magnetic latching relay element and each second magnetic latching relay element;

The pulse input terminals of all the first magnetic latching relay elements and the pulse input terminals of all the second magnetic latching relay elements are electrically connected to the control module;

The on-off unit is used to control one end of the contacts of all the first magnetic latching relay elements to connect or disconnect the negative wire 21 or the positive wire 22 of the power supply 2 at the same time, and is also used to control all the second magnetic latching relay elements. One end of the contact is connected or disconnected at the same time on the negative line 21 or the positive line 22 of the power supply 2;

The other end of the contact of the first magnetic latching relay element is connected to the node with the other end of the contact of the corresponding second magnetic latching relay element, and each node is used for one-to-one correspondence with the electrical equipment and is used for connecting the corresponding The energized end of the electrical equipment. Wherein, when the on-off unit is used to control one end of the contacts of all the first magnetic latching relay elements to connect or disconnect the negative wire 21 of the power supply 2 at the same time, and to control all the second magnetic latching relay elements One end of the contact is connected or disconnected to the negative line 21 of the power supply 2 at the same time, and each node is connected to the negative end of the corresponding electrical equipment; when the on-off unit is used to control all the contacts of the first magnetic latching relay elements One end is connected or disconnected to the positive line 22 of the power supply 2 at the same time, and one end of the contacts used to control all the second magnetic latching relay elements is connected or disconnected to the positive line 22 of the power supply 2 at the same time. The node is connected with the positive terminal of the corresponding electrical equipment.

In order to facilitate understanding: the first magnetic latching relay element is provided with 10, and the coils of the 10 first magnetic latching relay elements are set as follows: KA1-1, KA2-1, KA3-1... KA10-1; 10 The contacts of the first magnetic latching relay element are sequentially set to K1-1, K2-1, K3-1...K10-1;

There are 10 second magnetic latching relay elements, and the coils of 10 second magnetic latching relay elements are set as follows: KA1-2, KA2-2, KA3-2... KA10-2; 10 second magnetic latching relays The contacts of the relay elements are set to K1-2, K2-2, K3-2...K10-2 in sequence;

There are 10 electrical equipments, and the 10 electrical equipments are set as ICD1, ICD2, ICD3... ICD10 in turn.

There are 10 nodes set, and the 10 nodes are set as DO1, DO2, DO3, DO4...DO10 in turn.

The contact K1-1 of the first magnetic latching relay element corresponds to the contact K1-2 of the second magnetic latching relay element, and the contact K2-1 of the first magnetic latching relay element corresponds to the second magnetic latching relay The contact K2-2 of the element, the contact K3-1 of the first magnetic latching relay element corresponds to the contact K3-2 of the second magnetic latching relay element, and so on.

The contact K1-1 of the first magnetic latching relay element corresponds to the electrical device ICD1, the contact K2-1 of the first magnetic latching relay element corresponds to the electrical device ICD2, and the contact point of the first magnetic latching relay element K3-1 corresponds to the electrical device ICD3, and so on.

The contact K1-1 of the first magnetic latching relay element corresponds to the node DO1, the contact K2-1 of the first magnetic latching relay element corresponds to the node DO2, and the contact K3-1 of the first magnetic latching relay element corresponds to to node DO3, and so on.

Instructions for use: When the power supply 2 needs to supply power to the electrical equipment ICD1 to the electrical equipment ICD10, the on-off unit is used to control the contacts of all the first magnetic latching relay elements to disconnect from the negative line 21 of the power supply 2. And through the on-off unit to control the contacts of all the second magnetic latching relay elements to be disconnected from the negative wire 21 of the power supply 2, and then make all the contacts of the first magnetic latching relay elements and all the second magnetic latching relay elements through the control module. The contacts of the magnetic latching relay elements are closed and turned on, and then the contacts of all the first magnetic latching relay elements and the negative wire 21 of the power supply 2 are closed and turned on through the on-off unit, and the on-off unit controls The contacts of all the second magnetic latching relay elements are connected to the negative line 21 of the power supply 2, so that the negative line 21 of the power supply 2 is connected to the electrical equipment ICD1 to the electrical equipment ICD10, so that the electrical equipment ICD1 can be connected to the electrical equipment ICD1. ~ The electrical device ICD10 supplies power.

When the power supply 2 has supplied power to the electrical equipment ICD1 to the electrical equipment ICD10, and needs to stop power supply to at least one electrical equipment among the electrical equipment ICD1 to the electrical equipment ICD10, the on-off unit is used to control all the first magnetic The contact of the holding relay element is disconnected from the negative line 21 of the power supply 2; then, the contact of the first magnetic holding relay element corresponding to the power supply device that needs to be stopped is disconnected by the control module; and then the on-off unit controls The contacts of all the first magnetic latching relay elements are connected with the negative wire 21 of the power supply 2, and the on-off unit controls the contacts of all the second magnetic latching relay elements to be disconnected from the negative wire 21 of the power supply 2 Then, the contact of the second magnetic latching relay element corresponding to the power supply equipment that needs to be stopped is disconnected through the control module, so that the negative line 21 of the power supply 2 is disconnected from the power supply equipment that needs to be stopped, and the power supply 2 is connected to the rest. The power supply to electrical equipment was not affected. For example, assuming that the electrical device ICD1 needs to stop power supply, the on-off unit is used to control the contacts of all the first magnetic latching relay elements to disconnect from the negative wire 21 of the power supply 2; then the first magnetic latching relay is controlled by the control module. The contact K1-1 of the element is disconnected; then the contacts of all the first magnetic latching relay elements are controlled by the on-off unit and the negative line 21 of the power supply 2 is closed and turned on, and the on-off unit is used to control all the second The contact of the magnetic latching relay element is disconnected from the negative wire 21 of the power supply 2; then the contact K1-2 of the second magnetic latching relay element is disconnected by the control module, so that the negative wire 21 of the power supply 2 is connected to the user. The electrical equipment ICD1 is disconnected, and the power supply of the power supply 2 to the electrical equipment ICD2 to the electrical equipment ICD10 is not affected.

When the power supply 2 does not supply power to at least one electrical device among the electrical devices ICD1 to ICD10, and the power supply 2 has supplied power to the remaining electrical devices, it is necessary to supply power to the unpowered electrical devices. First, the on-off unit is used to control the contacts of all the first magnetic latching relay elements to disconnect from the negative wire 21 of the power supply 2; then the first magnetic latching relay element corresponding to the unpowered electrical equipment is closed by the control module. Conduction; then through the on-off unit to control the contacts of all the first magnetic latching relay elements and the negative wire 21 of the power supply 2 to switch on and conduct, and the on-off unit to control the contacts of all the second magnetic latching relay elements. The point is disconnected from the negative line 21 of the power supply 2; then the contact K1-2 of the second magnetic latching relay element corresponding to the unpowered electrical equipment is closed and turned on by the control module, so that the negative line of the power supply 2 21 is connected to the unpowered electrical equipment, and the power supply of the power supply 2 to the other electrical equipment is not affected. For example, when the power supply 2 does not supply power to the electric device ICD1, and the power supply 2 has supplied power to the electric device ICD2 to the electric device ICD10, it is necessary to restore the power supply 2 to the electric device ICD1. The contact of the first magnetic latching relay element is disconnected from the negative wire 21 of the power supply 2; then the contact K1-1 of the first magnetic latching relay element is closed and turned on by the control module; Control the contacts of all the first magnetic latching relay elements and the negative wire 21 of the power supply 2 to switch on and conduct, and control the contacts of all the second magnetic latching relay elements and the negative wire 21 of the power supply 2 through the on-off unit Then, the contact K1-2 of the second magnetic latching relay element is closed and turned on by the control module, so that the negative line 21 of the power supply 2 is connected to the electrical equipment ICD1, and the power supply 2 is connected to the electrical equipment ICD2～ The power supply of the electrical device ICD10 is not affected.

Compared with the prior art, the low-cost and high-power intelligent control DC power distribution system provided by the utility model has the advantages of small volume of the first magnetic-holding relay element and the second magnetic-holding relay element, which greatly reduces the power distribution. volume of the system. When it is necessary to make the first magnetic latching relay element corresponding to each electrical equipment on or off, first disconnect the contacts of all the first magnetic latching relay elements from the power supply 2 through the on-off unit. , and then through the control module, the contacts of the first magnetic latching relay element are turned on or off, so as to ensure that the contacts of the first magnetic latching relay element are switched on or turned on in a state of no current and voltage. The opening is cut off, so that the contact of the first magnetic holding relay element will not generate an arc at the moment when the closing is turned on or the opening is cut off, so that the contact of the first magnetic holding relay is not damaged by the arc, which improves the first magnetic holding relay. A magnetic maintains the service life of the relay element. When it is necessary to make the second magnetic latching relay element corresponding to each electrical equipment on or off, first disconnect the contacts of all the second magnetic latching relay elements from the power supply 2 through the on-off unit , and then through the control module, the contacts of the second magnetic latching relay element are turned on or off to ensure that the contacts of the second magnetic latching relay element are closed or turned on in the state of no current and voltage. The opening is cut off, so that the contact of the second magnetic latching relay element will not generate an arc at the moment when the closing is turned on or the opening is cut off, so that the contact of the second magnetic latching relay is not damaged by the arc, and the first time is improved. The service life of the two magnetic retention relay components. When the first magnetic latching relay element and the second magnetic latching relay element are turned on or off, the control module needs to send the corresponding pulse signal. The first magnetic latching relay element and the second magnetic latching relay element The electrical element does not need electric energy during the working process. The first magnetic latching relay element relies on its own magnetic force to keep the closing on or off, and the second magnetic latching relay element relies on its own magnetic force to keep the closing on or off. At the end of the day, compared with AC contactors, DC contactors, AC relays and DC relays, which require power maintenance during operation, the first magnetic latching relay element and the second magnetic latching relay element greatly reduce the power of the power distribution system. consumption.

Further, please refer to FIG. 2 , as a specific embodiment of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the on-off unit includes a first relay and a second relay;

One end of the contact km1 of the first relay is electrically connected to the negative line 21 of the power supply 2, and the other end of the contact km1 of the first relay is electrically connected to one end of the contacts of all the first magnetic latching relay elements;

One end of the contact km2 of the second relay is electrically connected to the negative wire 21 of the power supply 2, and the other end of the contact km2 of the second relay is electrically connected to one end of the contacts of all the second magnetic latching relay elements.

Control one end of the contacts of all the first magnetic latching relay elements to connect or disconnect the negative wire 21 of the power supply 2 at the same time through the first relay; control the contacts of all the second magnetic latching relay elements through the second relay One end is connected to or disconnected from the negative line 21 of the power supply 2 at the same time. The number of the first relay and the second relay is small, which has little impact on the volume of the low-cost and high-power intelligent control DC power distribution system.

Specifically, the contact km1 of the first relay is set as a normally open contact, and the contact km2 of the second relay is set as a normally open contact.

Further, please refer to FIG. 2 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module is also used to control the closing, conduction or opening of the first relay. cut off, and also used to control the closing on or off of the second relay;

The coil KM1 of the first relay and the coil KM2 of the second relay are electrically connected to the control module.

The control module supplies power to the coil KM1 of the first relay and the coil KM2 of the second relay, so as to realize the control of the first relay and the second relay.

Further, referring to FIG. 2 , as a specific implementation of a low-cost and high-power intelligently controlled DC power distribution system provided by the present invention, the low-cost and high-power intelligently controlled DC power distribution system further includes a plurality of first diodes Each first diode is in one-to-one correspondence with the first magnetic latching relay element, and the positive terminal of each first diode is electrically connected to the other end of the contact of the corresponding first magnetic latching relay element. The negative terminal of a diode is electrically connected to the corresponding node.

The first diode has a forward closing and conducting function and a reverse opening and closing function. When it is necessary to make the first magnetic latching relay element corresponding to each electrical equipment on or off, first disconnect the contacts of all the first magnetic latching relay elements from the power supply 2 through the on-off unit. , the power supply 2 will not provide electrical energy to the contacts of the first magnetic latching relay element through the on-off unit, and at the same time due to the reverse opening and cut-off function of the first diode, the current of the nodes corresponding to the electrical equipment will not be It flows into the first magnetic latching relay element to further ensure that the contacts of the first magnetic latching relay element can be switched on or switched off under the condition of no voltage and no current.

For ease of understanding, there are 10 first diodes, and the 10 first diodes are sequentially set as D1-1, D1-2, D1-3... D1-10. The contact K1-1 of the first magnetic latching relay element corresponds to the first diode D1-1, the contact K1-2 of the first magnetic latching relay element corresponds to the first diode D1-2, and the first The contact K1-3 of the magnetic latching relay element corresponds to the first diode D1-3, and so on.

Further, please refer to FIG. 2, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the low-cost high-power intelligent control DC power distribution system further includes a plurality of second and second power distribution systems. pole tubes, each second diode corresponds to the second magnetic latching relay element one-to-one;

The positive terminal of each second diode is electrically connected to the other end of the contact of the corresponding second magnetic latching relay element, and the negative terminal of each second diode is electrically connected to the corresponding node.

For the convenience of understanding, there are 10 second diodes, and the 10 second diodes are sequentially set as D2-1, D2-2, D2-3... D2-10. The contact K1-2 of the second magnetic latching relay element corresponds to the second diode D2-1, the contact K2-2 of the second magnetic latching relay element corresponds to the second diode D2-2, the second The contact K2-2 of the magnetic latching relay element corresponds to the second diode D2-3, and so on.

The second diode has a forward closing and conducting function and a reverse opening and closing function. When it is necessary to make the second magnetic latching relay element corresponding to each electrical equipment on or off, first disconnect the contacts of all the second magnetic latching relay elements from the power supply 2 through the on-off unit , the power supply 2 will not provide electrical energy to the contacts of the second magnetic latching relay element through the on-off unit, and at the same time due to the reverse opening and cut-off function of the second diode, the currents of the nodes corresponding to the electrical equipment will not The second magnetic latching relay element flows into the second magnetic latching relay element to further ensure that the contacts of the second magnetic latching relay element can be switched on or switched off under the condition of no voltage and no current.

Specifically, the low-cost and high-power intelligent control DC power distribution system further includes an execution PCB board (not shown in the figure), all the first magnetic latching relay elements, all the second magnetic latching relay elements, and all the first two-pole relay elements. The tube and all the second diodes are arranged on the execution PCB board. The first magnetic latching relay element, the second magnetic latching relay element, the first diode and the second diode are small in size and can be arranged in the same The implementation of the PCB board greatly improves the installation convenience of the low-cost high-power intelligent control DC power distribution system and reduces the volume of the low-cost high-power intelligent control DC power distribution system.

Further, please refer to FIG. 2, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the low-cost high-power intelligent control DC power distribution system also includes a plurality of power protection Switch devices, each power protection switch device corresponds to a node one-to-one, each power protection switch device has a first end and a second end, the first end of each power protection switch device is electrically connected to the corresponding node, and each power protection switch device has a first end and a second end. The other end of the electrical protection switch device is electrically connected to the power-on end of the corresponding electrical equipment.

For the convenience of understanding, there are 10 power protection switch devices, and the 10 power protection switch devices are sequentially set as: QF1-1, QF1-2, QF1-3, ... QF1-10. The node DO1 corresponds to the power protection switching device QF1-1, the node DO2 corresponds to the power protection switching device QF1-2, the node DO3 corresponds to the power protection switching device QF1-3, and so on.

Each power protection switch device has an overload protection function and a short circuit protection function, and each power protection switch device plays a role in protecting the corresponding power equipment, the corresponding first magnetic latching relay element and the corresponding second magnetic latching relay element. effect.

Specifically, the power protection switch device is set as a power circuit breaker or a power fuse.

Further, referring to FIG. 2 , as a specific embodiment of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module is also used for sampling voltage, and the control module includes a plurality of control voltage sampling terminals 191 , the low-cost high-power intelligent control DC power distribution system also includes a plurality of voltage sampling lines 4a, each voltage sampling line 4a corresponds to the power protection switch device one-to-one, and each voltage sampling line 4a corresponds to the control voltage sampling terminal 191 one-to-one One end of each voltage sampling line 4a is electrically connected to the second end of the corresponding power protection switch device, and the other end of each voltage sampling line 4a is electrically connected to the corresponding control voltage sampling end 191 .

The voltage flowing into the corresponding electrical equipment is sampled through each voltage collection line 4, which facilitates further processing of the sampled voltage.

Specifically, the control module includes a sampling chip corresponding to each voltage sampling line 4a one-to-one or a sampling circuit corresponding to each voltage sampling line 4a one-to-one. When the control module includes a plurality of sampling chips, the control voltage sampling terminal 191 is electrically connected to the corresponding sampling chips. When the control module includes a plurality of sampling circuits, the control voltage sampling terminal 191 is connected to the corresponding sampling circuit.

Optimally, the control module is used to sample the voltage in real time.

Further, please refer to FIG. 2 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the low-cost and high-power intelligent control DC power distribution system further includes a total protection switch device Q1 , the total protection switching device Q1 has a first end and a second end;

The on-off unit is also used to control one end of the contacts of all the first magnetic latching relay elements to connect or disconnect the first end of the total protection switching device Q1 at the same time, and is also used to control all the second magnetic latching relay elements. One end of the contact is connected or disconnected to the first end of the total protection switch device Q1 at the same time;

The second end of the general protection switching device Q1 is electrically connected to the negative line 21 of the power supply 2 .

The total protection switching device Q1 has an overload protection function and a power failure protection function. When the current and voltage input by the power supply 2 is too large, the total protection switching device Q1 can be quickly disconnected, which can protect all the electrical equipment, all the first magnetic latching relay elements and all the second magnetic latching relay elements in time. effect.

Specifically, one end of the contact km1 of the first relay and one end of the contact km2 of the second relay are electrically connected to one end of the general protection switching device Q1 at the same time.

Specifically, the general protection switching device Q1 is set as a general circuit breaker or a general fuse.

Further, please refer to FIG. 2, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a positive power supply terminal and a negative power supply terminal. The positive power terminal is used to connect the positive wire 22 of the power supply 2, and the negative power terminal of the control module is used to connect to the negative wire 21 of the power supply 2 or ground.

Power is supplied to the control module through the power supply 2, and no additional power supply is required to supply power to the control module, thereby reducing the cost of the power distribution system and improving the convenience of supplying power to the control module.

Further, please refer to FIG. 2, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present utility model, the low-cost high-power intelligent control DC power distribution system further includes a control module power protection The switching device Q2, the control module power protection switching device Q2 has a first end and a second end, the first end of the control module power protection switching device Q2 is electrically connected to the positive power supply terminal of the control module, and the first end of the control module power protection switching device Q2 is connected. The two ends are electrically connected to the negative line 21 of the power supply 2 .

The power protection switching device Q2 of the control module has the functions of overload protection and power failure protection. When the current and voltage input from the power supply 2 to the control module is too large, the control module power protection switch device Q2 can be quickly disconnected, and plays a role of protecting all the control modules in time.

Specifically, the control module power protection switch device Q2 is set as a control module circuit breaker or a control module fuse.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the power supply 2 is set as a DC power supply. The control module includes a DC/DC power supply unit 112a. The DC power supply supplies power to the control module through the DC/DC power supply unit 112a of the control module. The positive power supply terminal of the control module is connected to an input terminal of the DC/DC power supply unit 112a and the negative terminal of the control module. The power supply terminal is connected to the other input terminal of the DC/DC power supply unit 112a.

Specifically, the DC/DC power supply unit 112a is configured as a DC/DC chip or a DC/DC circuit.

Optimally, the DC power supply is set to -48V system, and the DC electrical equipment is set to communication equipment.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation manner of a low-cost and high-power intelligently controlled DC power distribution system provided by the present invention, the control module further includes an AC/DC power supply unit 112b, The first DC/DC voltage regulator unit 111 , the central processing unit 12 and the magnetic latching relay driving unit 13 . The magnetic latching relay driving unit 13 includes a plurality of first magnetic latching relay driving units 131 and a plurality of second magnetic latching relay driving units 132 ;

The output end of the DC/DC power supply unit 112a or the output end of the AC/DC power supply unit 112b is electrically connected to the input end of the first DC/DC voltage stabilization unit 111 , the power supply end of each first magnetic latching relay driving unit 131 and each Two power terminals of the magnetic latching relay driving unit 132; each first magnetic latching relay driving unit 131 corresponds to each first magnetic latching relay element one-to-one;

Each second magnetic latching relay driving unit 132 is in one-to-one correspondence with each second magnetic latching relay element;

The output end of the first magnetic latching relay driving unit 131 is connected to the coil of the corresponding first magnetic latching relay element;

The output end of the second magnetic latching relay driving unit 132 is connected to the coil of the corresponding second magnetic latching relay element;

The output terminal of the first DC/DC voltage regulator unit 111 is electrically connected to the power terminal of the central processing unit 12;

The central processing unit 12 is connected in communication with each of the first magnetic latching relay driving units 131, and is used to control at least one of the first magnetic latching relay driving units 131 to send a first pulse signal or a second pulse signal to the corresponding first magnetic latching relay driving unit 131. Holding the coil of the relay, each first pulse signal makes the contact of the corresponding first magnetic latching relay close and conductive, and each second pulse signal makes the corresponding contact of the first magnetic latching relay open and cut off.

The central processing unit 12 is connected in communication with each of the second magnetic latching relay driving units 132 to control at least one of the second magnetic latching relay driving units 132 to send a third pulse signal or a fourth pulse signal to the corresponding second magnetic latching relay. Holding the coil of the relay, each third pulse signal makes the contact of the corresponding second magnetic latching relay on and on, and each fourth pulse signal makes the contact of the corresponding second magnetic latching relay open and cut off.

The control module can connect the coils of the first magnetic latching relay elements and the coils of the second magnetic latching relay elements, and control the contacts of the first magnetic latching relay elements connected to the control module and the respective coils. The closing of the contacts of the first magnetic latching relay element is turned on or the opening is turned off. Since the control module does not need to be connected with a DC contactor, a DC relay and an AC contactor, the volume of the AC power distribution device 101 and the DC power distribution device is greatly reduced. Since the cost of the first magnetic latching relay element and the second magnetic latching relay element is lower than that of the DC contactor, the DC relay and the AC contactor, the cost of the AC power distribution device 101 and the DC power distribution device is greatly reduced. The DC/DC power supply unit 112a or the AC/DC power supply unit 112b directly supplies power to each of the first latching relay driving units 131 and each of the second latching relay driving units 132 . The DC/DC power supply unit 112a or the AC/DC power supply unit 112b supplies power to the central processing unit 12 through the first DC/DC voltage stabilization unit 111 . The first DC/DC voltage stabilizer unit 111 can electrically isolate the central processing unit 12 from each of the first magnetic latching relay driving units 131 and each of the second magnetic latching relay driving units 132 , thereby reducing the need for each first magnetic latching relay driving unit 131 and each The electrical isolation of the second magnetic latching relay drive unit 132 affects the central processing unit 12 in the event of a fault.

Specifically, the AC/DC power supply unit 112b is used to connect the AC power supply. When the AC power supply supplies power to the control module through the AC/DC power supply unit 112b of the control module, the positive power supply terminal of the control module is connected to a side of the AC/DC power supply unit 112b. The input terminal and the negative power terminal of the control module are connected to the other input terminal of the AC/DC power supply unit 112b. The electrical equipment is set as a DC electrical equipment, and the AC/DC power supply unit 112b is set as an AC/DC chip or an AC/DC circuit.

Optimally, the AC power supply is set to a 220V system, and the AC electrical equipment includes an AC motor or an AC charging pile.

Specifically, the central processing unit 12 is set as a CPU or an MCU. The DC/DC power supply unit 112a is configured as a DC/DC power supply circuit or a DC/DC power supply chip. The first DC/DC voltage stabilization unit 111 is set as a first DC/DC voltage stabilization circuit or a first DC/DC voltage stabilization chip. Each of the first magnetic latching relay driving units 131 is configured as a first pulse chip or a first pulse circuit. Each second magnetic latching relay driving unit 132 is configured as a second pulse chip or a second pulse circuit.

The central processing unit 12 controls each of the first magnetic latching relay driving units 131 to independently issue a first pulse signal or a second pulse signal; the central processing unit 12 simultaneously controls a plurality of first magnetic latching relay driving units 131 to issue a first pulse signal or a second pulse signal. The second pulse signal; the first magnetic latching relay driving unit 131 of the control part of the central processing unit 12 can also send the second pulse signal to the first magnetic latching relay driving unit 131 of other parts while sending the first pulse signal.

The central processing unit 12 controls each of the second magnetic latching relay driving units 132 to independently issue the third pulse signal or the fourth pulse signal; the central processing unit 12 simultaneously controls the plurality of second magnetic latching relay driving units 132 to issue the third pulse signal or the fourth pulse signal. Pulse signal; while the second magnetic latching relay driving unit 132 of the control part of the central processing unit 12 sends a third pulse signal, it can also send a fourth pulse signal to the second magnetic latching relay driving unit 132 of other parts.

Further, please refer to FIG. 2, FIG. 3 and FIG. 4, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a second DC/DC voltage regulator. The unit 113 and the communication module 141; the communication module 141 is used to communicate with the host computer, the output end of the second DC/DC voltage stabilization unit 113 is electrically connected to the power supply end of the communication module 141, and the output end of the DC/DC power supply unit 112a includes the first a voltage output terminal and a second voltage output terminal, the AC/DC power supply unit 112b includes a first voltage output terminal and a second voltage output terminal;

The 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 regulator unit 111 , the power supply terminal of each of the first magnetic latching relay driving units 131 and each of the second magnetic latching relay driving units 132 The power supply terminal of the DC/DC power supply unit 112a is electrically connected to the input terminal of the second DC/DC voltage regulator unit 113;

Or the first voltage output terminal of the AC/DC power supply unit 112b is electrically connected to the input terminal of the first AC/DC voltage regulator unit, the power supply terminal of each first magnetic latching relay driving unit 131 and each second magnetic latching relay driving unit 132 The power supply terminal of the AC/DC power supply unit 112 b is electrically connected to the input terminal of the second DC/DC voltage regulator unit 113 .

The second DC/DC voltage stabilization unit 113 electrically isolates the communication module 141 from the power supply terminals of each of the first latching relay drive units 131 , electrically isolates the communication module 141 from the power supply terminals of each of the second latching relay drive units 132 , and The communication module 141 is also electrically isolated from the central processing unit 12 .

Specifically, the upper computer is set as a monitoring platform or FSU. The second DC/DC voltage stabilization unit 113 is configured 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 module, so that the monitoring platform and the FSU can send control instructions to the control module and retrieve the internal information of the control module, so as to realize the monitoring, management and control of the control module.

Optimally, the DC voltage output by the first voltage output terminal is 12V. The DC voltage output by the second voltage output terminal is 15V. The DC voltage output by the first DC/DC voltage stabilization unit 111 is 5V. The DC voltage output by the second DC/DC voltage stabilization unit 113 is 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 a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the communication module 141 is set as an RS485 chip, and the RS485 chip supports any of the Modbus-RTU protocol and the free communication protocol. A sort of.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes an AD channel switching module 15 ;

The power supply terminal of the AD channel switching module 15 is electrically connected to the output terminal of the first DC/DC voltage regulator module, and the AD channel switching module 15 is communicatively connected to the central processing unit 12 .

Through the AD channel switching module 15, it is convenient for the central processing unit 12 to collect analog signals.

Specifically, the control module 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 for collecting voltage signals, and the input end of the voltage sampling module 173 is set as the control voltage sampling end 191;

The power supply terminal of the AD channel switching module 15 is electrically connected to the output terminal of the first DC/DC voltage regulator module, and the AD channel switching module 15 is communicatively connected to the central processing unit 12 .

The control module collects the voltage signal, which is convenient for the user to process the collected voltage signal in the next step.

Optimally, the voltage sampling module 173 is used to collect the voltage signal of the circuit controlled by the contact of each first magnetic latching relay element, and is also used to collect the voltage signal of the circuit controlled by the contact of each second magnetic latching relay element; The AD channel switching module 15 is used for receiving the first working voltage 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 each detection information.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation manner of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a fault indication module 161 , a fault indication module 161 . The module 161 is connected in communication with the central processing unit 12 , and the central processing unit 12 is also used 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 the user, thereby reminding the user to maintain the control module or maintain the related equipment connected to the control module.

Specifically, the control module further includes a relay state identification module 163, and the relay state identification module 163 is communicatively connected to the central processing unit 12;

The relay state identification module 163 is used to detect the real-time working state information of each first magnetic latching relay element and each second magnetic latching relay element and send it to the central processing unit 12;

When the central processing unit 12 receives the real-time working status information, the central processing unit 12 judges whether any detection information is different from the corresponding real-time working status information. If any detection information is different from the corresponding real-time working status information, the fault is The instructing module 161 is turned on to send out fault information; if any detection information is not different from the corresponding real-time working state information, the fault instructing module 161 is turned off and does not send out the fault information.

The relay state identification module 163 performs real-time identification on the interruption or closing conduction of each first magnetic latching relay element, and real-time identification of the interruption or closing conduction of each second magnetic latching relay element. The real-time working state information includes a first preset voltage and a second preset voltage. Each first magnetic latching relay element sends a corresponding first preset voltage to the central processing unit 12 when the switch is turned on. Each first magnetic latching relay element sends a corresponding second preset voltage to the central processing unit 12 when the opening is turned off. The first preset voltage corresponding to each first magnetic latching relay element when the switch is turned on is the same as the corresponding detection information, and the second preset voltage corresponding to each first magnetic latching relay element when the switch is turned off is the same as the corresponding detection information. The detection information is the same, and the fault indication module 161 does not send fault information at this time. The first preset voltage corresponding to any one of the first magnetic latching relay elements when the switch is on is different from the corresponding detection information, or the corresponding second preset voltage of any one of the first magnetic latching relay elements when the switch is turned off. If the voltage is different from the corresponding detection information, the fault indication module 161 sends out fault information.

The real-time working state information further includes a third preset voltage and a fourth preset voltage. Each second magnetic latching relay element sends a corresponding third preset voltage to the central processing unit 12 when the switch is turned on. Each second magnetic latching relay element sends a corresponding fourth preset voltage to the central processing unit 12 when the opening is turned off. The third preset voltage corresponding to each second magnetic latching relay element when the switch is turned on is the same as the corresponding detection information, and the corresponding fourth preset voltage of each second magnetic latching relay element when the switch is turned off is the same as the corresponding detection information. The detection information is the same, and the fault indication module 161 does not send fault information at this time. The third preset voltage corresponding to any second magnetic latching relay element when the switch is on is different from the corresponding detection information, or the fourth preset voltage corresponding to any second magnetic latching relay element when the switch is off. If the voltage is different from the corresponding detection information, the fault indication module 161 sends out fault information.

Further, please refer to FIG. 2, FIG. 3 and FIG. 4, as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a fault indicator 162, a fault indicator The light 162 is electrically connected to the fault indication module 161. When the fault indication module 161 is turned on, the fault indicator light 162 emits light.

The fault indicator 162 serves to quickly remind the user.

Specifically, if any detection information is different from the corresponding real-time working status information, the fault indication module 161 makes the fault indicator 162 light; if any detection information is not different from the corresponding real-time working status information, the fault indication module 161 does not light the fault indicator 162. Through the fault indicator 162, it is convenient for the user to quickly know that the first magnetic latching relay element or/and the second magnetic latching relay element connected to the control module is faulty, so that it is convenient for the user to check the first magnetic latching relay element connected to the control module. Check and replace the magnetic latching relay element or/and the second magnetic latching relay element.

Further, please refer to FIG. 2, FIG. 3 and FIG. 4, as a specific implementation of a low-cost high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a temperature analog input port 171, The temperature analog input port 171 is used to connect the temperature collector, and the output end of the temperature analog input port 171 is electrically connected to the input end of the AD channel switching module 15, so as to facilitate the user to collect temperature-related information.

The temperature analog input port 171 is used to send the temperature analog signal of the temperature collector to the AD channel switching module 15; the AD channel switching module 15 is also used to convert the temperature analog signal into temperature digital information and send it to the central processing unit 12. The temperature digital information is convenient for the central processing unit 12 to execute the corresponding first operation instruction according to the temperature digital information. Specifically, the first operation instruction is set to: compare the digital temperature information with a preset temperature threshold, and control the opening and closing and closing of each magnetic latching relay.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a current analog input port 172 , The input end of the current analog input port 172 is used to connect the input end of the DC/DC power supply unit 112a or the input end of the AC/DC power supply unit 112b, and the output end of the current analog input port 172 is electrically connected to the input end of the AD channel switching module 15. input.

Specifically, the current analog input port 172 is used to collect the first input current signal of the input end of the DC/DC power supply unit 112a or the second input current signal of the input end of the AC/DC power supply unit 112b;

The current analog input port 172 is used 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 it to the central processing unit 12 .

By collecting the current digital information, it is convenient for the central processing unit 12 to execute the corresponding second operation instruction according to the current digital information, so as to realize the display, transmission and storage of the current digital information. Specifically, the second operation instruction is set to: compare the current digital information with a preset temperature threshold, and control the opening and closing and closing of each magnetic latching relay.

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a wireless communication module 142 , which is used for wireless communication. The module 142 is used for communicating with the cloud platform, and the wireless communication module 142 is communicating with the central processing unit 12 .

The control module can communicate with the cloud platform, so that the cloud platform can send control instructions to the control module and retrieve the internal information of the control module, so as to realize the monitoring, management and control of the control module.

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. 2 , FIG. 3 and FIG. 4 , as a specific implementation of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the control module further includes a dial switch 18 . The switch 18 is communicatively connected to the central processing unit, and is used for the expansion of the communication address of the control module, which is convenient for distinguishing different control modules, and is convenient for users to monitor, transmit and control different control modules.

Specifically, the user monitors, transmits and controls different control modules through the cloud platform or/and the host computer.

Further, as a specific implementation manner of a low-cost and high-power intelligent control DC power distribution system provided by the present invention, the central processing unit 12 is set as a CPU or an MCU.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. A low-cost high-power intelligent control DC power distribution system, characterized in that it includes a control module, an on-off unit, a plurality of first magnetic latching relay elements, and a pair of said first magnetic latching relay elements. a corresponding second magnetic latching relay element; The control module is used to control the closing on or opening of each of the first magnetic latching relay elements and each of the second magnetic latching relay elements; The pulse input terminals of all the first magnetic latching relay elements and the pulse input terminals of all the second magnetic latching relay elements are electrically connected to the control module; The on-off unit is used to control one end of the contacts of all the first magnetic latching relay elements to be connected or disconnected from the power supply at the same time, and is also used to control the contacts of all the second magnetic latching relay elements. One end is connected or disconnected from the power supply at the same time; The other end of the contact of the first magnetic latching relay element and the other end of the contact of the corresponding second magnetic latching relay element are connected to nodes, and each of the nodes is used for one-to-one correspondence with the electrical equipment And it is used to connect the power-on end of the corresponding electrical equipment. 2. The low-cost and high-power intelligent control DC power distribution system according to claim 1, wherein the on-off unit comprises a first relay and a second relay; One end of the contacts of the first relay is electrically connected to the power supply, and the other end of the contacts of the first relay is electrically connected to one end of the contacts of all the first magnetic latching relay elements; One end of the contacts of the second relay is electrically connected to the power supply, and the other ends of the contacts of the second relay are electrically connected to one end of the contacts of all the second magnetic latching relay elements. 3. A low-cost and high-power intelligent control DC power distribution system according to claim 2, wherein the control module is further used to control the closing on or opening of the first relay, and It is also used to control the closing on or opening of the second relay; The coil of the first relay and the coil of the second relay are electrically connected to the control module. 4. The low-cost and high-power intelligently controlled DC power distribution system according to claim 1, wherein the low-cost and high-power intelligently controlled DC power distribution system further comprises a plurality of first diodes, each of which The first diodes are in one-to-one correspondence with the first magnetic latching relay elements, and the positive terminal of each of the first diodes is electrically connected to the other side of the contacts of the corresponding first magnetic latching relay elements. At one end, the negative terminal of each of the first diodes is electrically connected to the corresponding node. 5. The low-cost and high-power intelligently controlled DC power distribution system according to claim 4, wherein the low-cost and high-power intelligently controlled DC power distribution system further comprises a plurality of second diodes, each of which The second diode is in one-to-one correspondence with the second magnetic latching relay element; The positive terminal of each of the second diodes is electrically connected to the other end of the contact of the corresponding second magnetic latching relay element, and the negative terminal of each of the second diodes is electrically connected to the corresponding node. 6. The low-cost and high-power intelligently controlled DC power distribution system according to claim 1, wherein the low-cost and high-power intelligently controlled DC power distribution system further comprises a plurality of power protection switch devices, each of which The power protection switch devices are in one-to-one correspondence with the nodes, each of the power protection switch devices has a first end and a second end, and the first end of each power protection switch device is electrically connected to the corresponding node. the node, and the other end of each of the electrical protection switching devices is electrically connected to the power-on end of the corresponding electrical equipment. 7 . The low-cost and high-power intelligent control DC power distribution system according to claim 6 , wherein the control module is further used for sampling voltage, the control module comprises a plurality of control voltage sampling terminals, and the The low-cost and high-power intelligent control DC power distribution system also includes a plurality of voltage sampling lines, each of the voltage sampling lines is in one-to-one correspondence with the power protection switch devices, and each of the voltage sampling lines is connected to the control voltage sampling terminal. One-to-one correspondence, one end of each of the voltage sampling lines is electrically connected to the second end of the corresponding power protection switch device, and the other end of each of the voltage sampling lines is electrically connected to the corresponding control voltage sampling end. 8 . The low-cost and high-power intelligently controlled DC power distribution system according to claim 1 , wherein the low-cost and high-power intelligently controlled DC power distribution system further comprises a general protection switch device, the general protection switch 8 . the device has a first end and a second end; The on-off unit is also used to control one end of the contacts of all the first magnetic holding relay elements to connect or disconnect the first end of the total protection switch device at the same time, and is also used to control all the first One end of the contacts of the two magnetic holding relay elements is connected or disconnected at the same time at the first end of the total protection switch device; The second end of the general protection switching device is electrically connected to the power supply. 9. The low-cost and high-power intelligent control DC power distribution system according to claim 1, wherein the control module further comprises a positive power supply terminal and a negative power supply terminal, and the positive power supply terminal of the control module It is used to connect the power supply, and the negative power terminal of the control module is used to connect the power supply or ground. 10 . The low-cost and high-power intelligently controlled DC power distribution system according to claim 9 , wherein the low-cost and high-power intelligently controlled DC power distribution system further comprises a control module power protection switch device, the said 10 . The control module power protection switch device has a first end and a second end, the first end of the control module power protection switch device is electrically connected to the positive power supply terminal of the control module, and the second end of the control module power protection switch device The terminal is electrically connected to the power supply.

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