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

Abstract

The present invention provides a low-cost, high-power, intelligently controlled direct current power distribution system, comprising a control module, an on-off unit, a plurality of first magnetic latching relay elements, and second magnetic latching relay elements corresponding one-to-one to each of the first magnetic latching relay elements; the pulse input ends of all the first magnetic latching relay elements and the pulse input ends 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 simultaneously connected to or disconnected from a power supply, and is also used to control one end of the contacts of all the second magnetic latching relay elements to be simultaneously connected to or disconnected from a power supply; 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 a node, and each node is used to correspond one-to-one to an electrical device and to connect to the power-on end of the corresponding electrical device, so as to achieve the purpose of reducing the volume and cost of the power distribution equipment.

Description

Technical Field

[0001] The present invention belongs to the field of communication technology, and more specifically, relates to a low-cost, high-power intelligently controlled direct current power distribution system. Background Art

[0002] Please refer to Figure 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 power distribution device 107, a battery unit 108, a second DC power distribution device 109, a plurality of DC power consumption devices 1010, and a plurality of AC power consumption devices 1011. The renewable energy unit 102 provides AC power to the AC power distribution device 101 through the controller unit 103. The mains unit 104 and the generator unit 105 directly provide AC power to the AC power distribution device 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 consumption devices 1011. The high-frequency switching power supply unit 106 is used to convert the AC power into DC power. 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 multiple 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 multiple DC power-consuming devices 1010 through the second DC power distribution device 109. The AC power distribution device 101 uses an AC contactor 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. Due to the large size of the AC contactor, the AC power distribution device 101 is large in size and high in cost. 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 large in size and high in cost. Summary of the invention

[0003] The purpose of the present invention is to provide a low-cost, high-power, intelligently controlled DC power distribution system to solve the technical problems of large size and high cost of power distribution equipment in the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a low-cost high-power intelligent control DC power distribution system, including a control module, a switching unit, a plurality of first magnetic latching relay elements, and second magnetic latching relay elements corresponding to each of the first magnetic latching relay elements;

[0005] The control module is used to control the closing and conducting or opening and shutting off of each first magnetic latching relay element and each second magnetic latching relay element;

[0006] The pulse input ends of all the first magnetic latching relay elements and the pulse input ends of all the second magnetic latching relay elements are electrically connected to the control module;

[0007] The on-off unit is used to control one end of the contacts of all the first magnetic latching relay elements to be connected to or disconnected from 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;

[0008] The other end of the contact of the first magnetic latching relay element and the other end of the corresponding contact of the second magnetic latching relay element are connected to a node, and each node is used to correspond one-to-one with an electrical device and to connect to the power-on end of the corresponding electrical device.

[0009] Further, the on-off unit includes a first relay and a second relay;

[0010] One end of the contact of the first relay is electrically connected to the power supply, and the other end of the contact of the first relay is electrically connected to one end of the contacts of all the first magnetic latching relay elements;

[0011] One end of the contact of the second relay is electrically connected to the power supply, and the other end of the contact of the second relay is electrically connected to one end of the contacts of all the second magnetic latching relay elements.

[0012] Furthermore, the control module is also used to control the closing and conducting or the opening and closing of the first relay, and is also used to control the closing and conducting or the opening and closing of the second relay;

[0013] The coil of the first relay and the coil of the second relay are electrically connected to the control module.

[0014] Furthermore, the low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of first diodes, each of the first diodes corresponding one-to-one to the first magnetic holding relay element, the positive terminal of each of the first diodes being electrically connected to the other end of the contact of the corresponding first magnetic holding relay element, and the negative terminal of each of the first diodes being electrically connected to the corresponding node.

[0015] Furthermore, the low-cost high-power intelligent controlled DC power distribution system further comprises a plurality of second diodes, each of the second diodes corresponding to the second magnetic latching relay element one by one;

[0016] 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.

[0017] Furthermore, the low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of power protection switch devices, each of which corresponds one-to-one to the node, and each of which has a first end and a second end. The first end of each of the power protection switch devices is electrically connected to the corresponding node, and the other end of each of the power protection switch devices is electrically connected to the power-on end of the corresponding power-consuming equipment.

[0018] Furthermore, the control module is also used to sample voltage, the control module includes multiple control voltage sampling terminals, the low-cost, high-power intelligent controlled DC power distribution system also includes multiple voltage sampling lines, each of the voltage sampling lines corresponds one-to-one to the power protection switch device, each of the voltage sampling lines corresponds one-to-one to the control voltage sampling terminal, 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 terminal.

[0019] Furthermore, the low-cost high-power intelligent controlled DC power distribution system further comprises a total protection switch device, wherein the total protection switch device has a first end and a second end;

[0020] The on-off unit is further used to control one end of the contacts of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device, and is also used to control one end of the contacts of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device;

[0021] The second end of the main protection switch device is electrically connected to the power supply.

[0022] Furthermore, the control module also includes a positive power supply terminal and a negative power supply terminal, the positive power supply terminal of the control module is used to connect to the power supply, and the negative power supply terminal of the control module is used to connect to the power supply or ground.

[0023] Furthermore, the low-cost, high-power, intelligently controlled DC power distribution system also includes a control module power protection switch device, the control module power protection switch device having a first end and a second end, the first end of the control module power protection switch device being electrically connected to the positive power supply end of the control module, and the second end of the control module power protection switch device being electrically connected to the power supply.

[0024] Furthermore, the low-cost, high-power, intelligently controlled DC power distribution system also includes a control module power protection switch device, the control module power protection switch device having a first end and a second end, the first end of the control module power protection switch device being electrically connected to the positive power supply end of the control module, and the second end of the control module power protection switch device being electrically connected to the negative pole line of the power supply.

[0025] The beneficial effect of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention is that: compared with the prior art, the first magnetic latching relay element and the second magnetic latching relay element of the present invention are small in size, which greatly reduces the size of the power distribution system. When it is necessary to close or open the first magnetic latching relay element corresponding to each electrical device, firstly, the contacts of all the first magnetic latching relay elements are disconnected from the power supply through the on-off unit, and then the contacts of the first magnetic latching relay element are closed or opened through the control module, so as to ensure that the contacts of the first magnetic latching relay element are closed or opened in the state of no current and voltage, so that the contacts of the first magnetic latching relay element will not generate arcs at the moment of closing or opening, so that the contacts of the first magnetic latching relay will not be damaged by the arc, and the service life of the first magnetic latching relay element is improved. When it is necessary to close or open the second magnetic latching relay element corresponding to each electrical equipment, firstly, the contacts of all the second magnetic latching relay elements are disconnected from the power supply through the on-off unit, and then the contacts of the second magnetic latching relay element are closed or opened through the control module, so as to ensure that the contacts of the second magnetic latching relay element are closed or opened in a state without current and voltage, so that the contacts of the second magnetic latching relay element will not generate an arc at the moment of closing or opening, so that the contacts of the second magnetic latching relay will not be damaged by the arc, thereby improving the service life of the second magnetic latching relay element. When the first magnetic latching relay element and the second magnetic latching relay element are closed or open, the control module only needs to send a corresponding pulse signal. The first magnetic latching relay element and the second magnetic latching relay element do not require electric energy during operation. The first magnetic latching relay element relies on its own magnetic force to keep the switch closed or open, and the second magnetic latching relay element relies on its own magnetic force to keep the switch closed or open. Compared with AC contactors, DC contactors, AC relays and DC relays that require electric energy to maintain during operation, the first magnetic latching relay element and the second magnetic latching relay element greatly reduce the power consumption of the distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of the prior art;

[0028] Figure 2 A schematic diagram of a low-cost, high-power intelligent control DC power distribution system provided by an embodiment of the present invention Figure 1 ;

[0029] Figure 3 A schematic diagram of a low-cost, high-power intelligent control DC power distribution system provided by an embodiment of the present invention Figure 2 ;

[0030] Figure 4 A schematic diagram of a low-cost, high-power intelligent control DC power distribution system provided by an embodiment of the present invention Figure 3 .

[0031] Among them, the reference numerals in the figure are:

[0032] 111, first DC / DC voltage regulator unit; 112a, DC / DC power supply unit; 112b, AC / DC power supply unit; 113, second DC / DC voltage regulator unit; 12, central processing unit; 13, 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 indicator light; 163, relay state identification 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 pole Line; 22, positive line; 31, execution circuit board; 4a, voltage sampling line; 5a, control power protection switch device; 6a, input protection switch device; KM1, coil of the first relay; km1, contact of the first relay; KM2, coil of the second relay; km2, contact of the second relay; Q1, main protection switch device; Q2, 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 power equipment; 1011, AC power equipment. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0034] 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.

[0035] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] See also Figure 2 , a low-cost high-power intelligent control DC power distribution system provided by the present invention is now described. A low-cost high-power intelligent control DC power distribution system includes a control module, a switching unit, a plurality of first magnetic latching relay elements, and second magnetic latching relay elements corresponding to each of the first magnetic latching relay elements;

[0038] The control module is used to control the closing and conducting or opening and closing of each first magnetic latching relay element and each second magnetic latching relay element;

[0039] The pulse input terminals of all first magnetic latching relay elements and the pulse input terminals of all second magnetic latching relay elements are electrically connected to the control module;

[0040] The on-off unit is used to control one end of the contact of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 or the positive line 22 of the power supply 2, and is also used to control one end of the contact of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 or the positive line 22 of the power supply 2;

[0041] 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 a node, and each node is used to correspond to an electrical device one by one and is used to connect the power-on end of the corresponding electrical device. When the on-off unit is used to control one end of the contact of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 of the power supply 2, and is used to control one end of the contact of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 of the power supply 2, each node is connected to the negative end of the corresponding electrical device; when the on-off unit is used to control one end of the contact of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the positive line 22 of the power supply 2, and is used to control one end of the contact of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the positive line 22 of the power supply 2, each node is connected to the positive end of the corresponding electrical device.

[0042] For ease of understanding: there are 10 first magnetic latching relay elements, and the coils of the 10 first magnetic latching relay elements are sequentially set as: KA1-1, KA2-1, KA3-1...KA10-1; the contacts of the 10 first magnetic latching relay elements are sequentially set as K1-1, K2-1, K3-1...K10-1;

[0043] There are 10 second magnetic latching relay elements, and the coils of the 10 second magnetic latching relay elements are sequentially set to: KA1-2, KA2-2, KA3-2...KA10-2; the contacts of the 10 second magnetic latching relay elements are sequentially set to: K1-2, K2-2, K3-2...K10-2;

[0044] There are 10 electrical devices, and the 10 electrical devices are set as ICD1, ICD2, ICD3...ICD10 in sequence.

[0045] There are 10 nodes set, and the 10 nodes are set as DO1, DO2, DO3, DO4...DO10 in sequence.

[0046] The contact K1-1 of the first magnetic holding relay element corresponds to the contact K1-2 of the second magnetic holding relay element, the contact K2-1 of the first magnetic holding relay element corresponds to the contact K2-2 of the second magnetic holding relay element, the contact K3-1 of the first magnetic holding relay element corresponds to the contact K3-2 of the second magnetic holding relay element, and so on.

[0047] The contact K1-1 of the first magnetic latching relay element corresponds to the electric device ICD1, the contact K2-1 of the first magnetic latching relay element corresponds to the electric device ICD2, the contact K3-1 of the first magnetic latching relay element corresponds to the electric device ICD3, and so on.

[0048] 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 , the contact K3 - 1 of the first magnetic latching relay element corresponds to the node DO3 , and so on.

[0049] Instructions for use: When the power supply 2 needs to supply power to the electrical devices ICD1 to ICD10, first, the contacts of all the first magnetic latching relay elements are controlled to be disconnected from the negative pole line 21 of the power supply 2 by the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be disconnected from the negative pole line 21 of the power supply 2 by the on-off unit, and then the contacts of all the first magnetic latching relay elements and the contacts of all the second magnetic latching relay elements are closed and turned on by the control module, and then the contacts of all the first magnetic latching relay elements are controlled to be closed and turned on with the negative pole line 21 of the power supply 2 by the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be closed and turned on with the negative pole line 21 of the power supply 2 by the on-off unit, so that the negative pole line 21 of the power supply 2 is connected with the electrical devices ICD1 to ICD10, so as to supply power to the electrical devices ICD1 to ICD10.

[0050] When the power supply 2 has supplied power to the power users ICD1 to ICD10 and it is necessary to stop supplying power to at least one of the power users ICD1 to ICD10, firstly, the contacts of all the first magnetic latching relay elements are controlled to be disconnected from the negative line 21 of the power supply 2 by the on-off unit; then, the contacts of the first magnetic latching relay elements corresponding to the power supply device to be stopped are disconnected by the control module; then, the contacts of all the first magnetic latching relay elements are controlled to be closed and conducted with the negative line 21 of the power supply 2 by the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be disconnected from the negative line 21 of the power supply 2 by the on-off unit; then, the contacts of the second magnetic latching relay elements corresponding to the power supply device to be stopped are disconnected by the control module, so that the negative line 21 of the power supply 2 is disconnected from the power supply device to be stopped, and the power supply of the power supply 2 to the remaining power users is not affected. For example, assuming that the power supply to the electrical device ICD1 needs to be stopped, the contacts of all the first magnetic latching relay elements are first controlled to be disconnected from the negative line 21 of the power supply 2 through the on-off unit; then the contact K1-1 of the first magnetic latching relay element is disconnected through the control module; then the contacts of all the first magnetic latching relay elements are controlled to be closed and turned on with the negative line 21 of the power supply 2 through the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be disconnected from the negative line 21 of the power supply 2 through the on-off unit; then the contact K1-2 of the second magnetic latching relay element is disconnected through the control module, so that the negative line 21 of the power supply 2 is disconnected from the electrical device ICD1, and the power supply of the power supply 2 to the electrical devices ICD2 to ICD10 is not affected.

[0051] When the power supply 2 does not supply power to at least one of the power users ICD1 to ICD10, and the power supply 2 has supplied power to the remaining power users, it is necessary to supply power to the power users that are not supplied with power. First, the contacts of all the first magnetic latching relay elements are controlled to be disconnected from the negative line 21 of the power supply 2 by the on-off unit; then, the first magnetic latching relay elements corresponding to the power users that are not supplied with power are closed and turned on by the control module; then, the contacts of all the first magnetic latching relay elements are controlled to be closed and turned on with the negative line 21 of the power supply 2 by the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be disconnected from the negative line 21 of the power supply 2 by the on-off unit; then, the contacts K1-2 of the second magnetic latching relay elements corresponding to the power users that are not supplied with power are closed and turned on by the control module, so that the negative line 21 of the power supply 2 is connected to the power users that are not supplied with power, and the power supply of the power supply 2 to the remaining power users is not affected. For example, when the power supply 2 does not supply power to the power consumer ICD1, and the power supply 2 has supplied power to the power consumers ICD2 to ICD10, it is necessary to restore the power supply 2 to supply power to the power consumer ICD1. First, the contacts of all the first magnetic latching relay elements are controlled to be disconnected from the negative pole line 21 of the power supply 2 through the on-off unit; then the contact K1-1 of the first magnetic latching relay element is closed and turned on through the control module; then, the contacts of all the first magnetic latching relay elements are controlled to be closed and turned on with the negative pole line 21 of the power supply 2 through the on-off unit, and the contacts of all the second magnetic latching relay elements are controlled to be disconnected from the negative pole line 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 through the control module, so that the negative pole line 21 of the power supply 2 is connected to the power consumer ICD1, and the power supply of the power supply 2 to the power consumers ICD2 to ICD10 is not affected.

[0052] The present invention provides a low-cost, high-power, intelligently controlled DC power distribution system. Compared with the prior art, the first magnetic latching relay element and the second magnetic latching relay element are small in size, which greatly reduces the size of the power distribution system. When it is necessary to close or open the first magnetic latching relay element corresponding to each electrical device, firstly, the contacts of all the first magnetic latching relay elements are disconnected from the power supply 2 through the on-off unit, and then the contacts of the first magnetic latching relay element are closed or opened through the control module, ensuring that the contacts of the first magnetic latching relay element are closed or opened in a state without current and voltage, so that the contacts of the first magnetic latching relay element will not generate arcs at the moment of closing or opening, so that the contacts of the first magnetic latching relay will not be damaged by the arc, and the service life of the first magnetic latching relay element is improved. When it is necessary to close or open the second magnetic latching relay element corresponding to each electrical equipment, firstly, the contacts of all the second magnetic latching relay elements are disconnected from the power supply 2 through the on-off unit, and then the contacts of the second magnetic latching relay element are closed or opened through the control module, so as to ensure that the contacts of the second magnetic latching relay element are closed or opened in a state without current and voltage, so that the contacts of the second magnetic latching relay element will not generate an arc at the moment of closing or opening, so that the contacts of the second magnetic latching relay will not be damaged by the arc, thereby improving the service life of the second magnetic latching relay element. When the first magnetic latching relay element and the second magnetic latching relay element are closed or open, the control module only needs to send a corresponding pulse signal. The first magnetic latching relay element and the second magnetic latching relay element do not require electric energy during operation. The first magnetic latching relay element relies on its own magnetic force to keep the switch closed or open, and the second magnetic latching relay element relies on its own magnetic force to keep the switch closed or open. Compared with AC contactors, DC contactors, AC relays and DC relays that require electric energy to maintain during operation, the first magnetic latching relay element and the second magnetic latching relay element greatly reduce the power consumption of the distribution system.

[0053] For further information, see Figure 2 , as a specific implementation of a low-cost 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;

[0054] 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;

[0055] One end of the contact km2 of the second relay is electrically connected to the negative line 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.

[0056] The first relay is used to control one end of the contact of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 of the power supply 2; the second relay is used to control one end of the contact of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the negative line 21 of the power supply 2. The number of the first relays and the second relays is small, which has little impact on the volume of the low-cost high-power intelligent control DC power distribution system.

[0057] 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.

[0058] For further information, see Figure 2 As a specific implementation of a low-cost high-power intelligent control DC power distribution system provided by the present invention, the control module is also used to control the closing and conducting or opening and closing of the first relay, and is also used to control the closing and conducting or opening and closing of the second relay;

[0059] The coil KM1 of the first relay and the coil KM2 of the second relay are electrically connected to the control module.

[0060] Power is supplied to the coil KM1 of the first relay and the coil KM2 of the second relay through the control module, so as to control the first relay and the second relay.

[0061] Further, see Figure 2 As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of first diodes, each of which corresponds one-to-one to a first magnetically latching relay element, a positive terminal of each first diode is electrically connected to the other end of the contact of the corresponding first magnetically latching relay element, and a negative terminal of each first diode is electrically connected to a corresponding node.

[0062] The first diode has a forward closing function and a reverse opening function. When the first magnetic latching relay element corresponding to each electrical device needs to be closed or opened, the contacts of all the first magnetic latching relay elements are first disconnected from the power supply 2 through the on-off unit, and the power supply 2 will not provide electrical energy to the contacts of the first magnetic latching relay element through the on-off unit. At the same time, due to the reverse opening function of the first diode, the current of the node corresponding to each electrical device will not flow into the first magnetic latching relay element, further ensuring that the contacts of the first magnetic latching relay element are closed or opened without voltage or current.

[0063] For ease of understanding, 10 first diodes are provided, 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, the contact K1-3 of the first magnetic latching relay element corresponds to the first diode D1-3, and so on.

[0064] For further information, see Figure 2 As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the low-cost, high-power, intelligently controlled DC power distribution system further includes a plurality of second diodes, each of which corresponds to a second magnetic latching relay element one by one;

[0065] 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.

[0066] For ease of understanding, 10 second diodes are provided, 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 contact K2-2 of the second magnetic latching relay element corresponds to the second diode D2-3, and so on.

[0067] The second diode has a forward closing function and a reverse opening function. When the second magnetic latching relay element corresponding to each electrical device needs to be closed or opened, the contacts of all the second magnetic latching relay elements are first disconnected from the power supply 2 through the on-off unit, and the power supply 2 will not provide electrical energy to the contacts of the second magnetic latching relay element through the on-off unit. At the same time, due to the reverse opening function of the second diode, the current of the node corresponding to each electrical device will not flow into the second magnetic latching relay element, further ensuring that the contacts of the second magnetic latching relay element are closed or opened without voltage or current.

[0068] Specifically, the low-cost, high-power, intelligently controlled DC power distribution system further includes an executive PCB board (not shown in the figure), on which all first magnetically latching relay elements, all second magnetically latching relay elements, all first diodes and all second diodes are arranged. The first magnetically latching relay elements, the second magnetically latching relay elements, the first diodes and the second diodes are small in size and can be arranged on the same executive PCB board, which greatly improves the installation convenience of the low-cost, high-power, intelligently controlled DC power distribution system and reduces the size of the low-cost, high-power, intelligently controlled DC power distribution system.

[0069] For further information, see Figure 2 As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of power protection switch devices, each of which corresponds to a node one by one, and each of which has a first end and a second end. The first end of each of the power protection switch devices is electrically connected to the corresponding node, and the other end of each of the power protection switch devices is electrically connected to the power-on end of the corresponding power-consuming equipment.

[0070] For ease of understanding, 10 power protection switch devices are provided, and the 10 power protection switch devices are sequentially set as: QF1-1, QF1-2, QF1-3, ... QF1-10. Node DO1 corresponds to power protection switch device QF1-1, node DO2 corresponds to power protection switch device QF1-2, node DO3 corresponds to power protection switch device QF1-3, and so on.

[0071] 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.

[0072] Specifically, the power protection switch device is configured as a power circuit breaker or a power fuse.

[0073] Further, see Figure 2 As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the control module is also used to sample voltage. The control module includes multiple control voltage sampling terminals 191. The low-cost, high-power, intelligently controlled DC power distribution system also includes multiple voltage sampling lines 4a. Each voltage sampling line 4a corresponds one-to-one to a power protection switch device. Each voltage sampling line 4a corresponds one-to-one to a control voltage sampling terminal 191. 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 terminal 191.

[0074] The voltage flowing into the corresponding electrical equipment is sampled through each voltage collection line 4, so as to facilitate further processing of the sampled voltage.

[0075] Specifically, the control module includes a sampling chip corresponding to each voltage sampling line 4a or a sampling circuit corresponding to each voltage sampling line 4a. When the control module includes multiple sampling chips, the control voltage sampling terminal 191 is electrically connected to the corresponding sampling chip. When the control module includes multiple sampling circuits, the control voltage sampling terminal 191 is connected to the corresponding sampling circuit.

[0076] Optimally, the control module is used to sample the voltage in real time.

[0077] For further information, see Figure 2 As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the low-cost, high-power, intelligently controlled DC power distribution system further includes a total protection switch device Q1, the total protection switch device Q1 having a first end and a second end;

[0078] The on-off unit is also used to control one end of the contact of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device Q1, and is also used to control one end of the contact of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device Q1;

[0079] A second terminal of the main protection switch device Q1 is electrically connected to the negative electrode line 21 of the power supply 2 .

[0080] The main protection switch device Q1 has overload protection and power-off protection functions. When the current and voltage input by the power supply 2 are too large, the main protection switch device Q1 can be quickly disconnected to protect all electrical equipment, all first magnetic latching relay elements and all second magnetic latching relay elements in time.

[0081] 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 overall protection switching device Q1 at the same time.

[0082] Specifically, the main protection switch device Q1 is set as a main circuit breaker or a main fuse.

[0083] For further information, see Figure 2 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a positive power supply terminal and a negative power supply terminal. The positive power supply terminal of the control module is used to connect the positive line 22 of the power supply 2, and the negative power supply terminal of the control module is used to connect the negative line 21 of the power supply 2 or ground.

[0084] The control module is powered by the power supply 2, and no additional power source is needed to power the control module, thereby reducing the cost of the power distribution system and improving the convenience of powering the control module.

[0085] For further information, see Figure 2As a specific implementation of a low-cost, high-power, intelligently controlled DC power distribution system provided by the present invention, the low-cost, high-power, intelligently controlled DC power distribution system also includes a control module power protection switch device Q2, the control module power protection switch device Q2 having a first end and a second end, the first end of the control module power protection switch device Q2 being electrically connected to the positive power supply end of the control module, and the second end of the control module power protection switch device Q2 being electrically connected to the negative pole line 21 of the power supply 2.

[0086] The control module power protection switch device Q2 has overload protection and power-off protection functions. When the current and voltage input from the power supply 2 to the control module are too large, the control module power protection switch device Q2 can be quickly disconnected to protect all control modules in time.

[0087] Specifically, the control module power protection switch device Q2 is set as a control module circuit breaker or a control module fuse.

[0088] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled 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, and 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 one input terminal of the DC / DC power supply unit 112a, and the negative power supply terminal of the control module is connected to the other input terminal of the DC / DC power supply unit 112a.

[0089] Specifically, the DC / DC power supply unit 112a is configured as a DC / DC chip or a DC / DC circuit.

[0090] Optimally, the DC power supply is set to a -48V system and the DC power-consuming equipment is set to communication equipment.

[0091] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module further includes an AC / DC power supply unit 112b, a first DC / DC voltage stabilizing unit 111, a central processing unit 12 and a magnetic latching relay driving unit 13, and 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;

[0092] 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 stabilizing unit 111, the power supply end of each first magnetic latching relay driving unit 131 and the power supply end of each second magnetic latching relay driving unit 132; each first magnetic latching relay driving unit 131 corresponds to each first magnetic latching relay element one by one;

[0093] Each second magnetic latching relay driving unit 132 corresponds to each second magnetic latching relay element one by one;

[0094] 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;

[0095] 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;

[0096] The output end of the first DC / DC voltage stabilizing unit 111 is electrically connected to the power supply end of the central processing unit 12;

[0097] The central processing unit 12 is communicatively connected with each first magnetic holding relay driving unit 131, and is used to control at least one of the first magnetic holding relay driving units 131 to send a first pulse signal or a second pulse signal to the coil of the corresponding first magnetic holding relay, each first pulse signal causes the contact of the corresponding first magnetic holding relay to close and conduct, and each second pulse signal causes the contact of the corresponding first magnetic holding relay to open and shut off.

[0098] The central processing unit 12 is communicatively connected with each second magnetic latching relay driving unit 132, and is used 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 coil of the corresponding second magnetic latching relay, each third pulse signal causes the contact of the corresponding second magnetic latching relay to close and conduct, and each fourth pulse signal causes the contact of the corresponding second magnetic latching relay to open and shut off.

[0099] The control module can connect the coils of each first magnetic latching relay element and the coils of each second magnetic latching relay element, and control the contacts of each first magnetic latching relay element connected to the control module and the contacts of each first magnetic latching relay element to be turned on or turned off. Since the control module does not need to connect the DC contactor, DC relay and AC contactor, the volume of the AC power distribution equipment 101 and the DC power distribution equipment 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, DC relay and AC contactor, the cost of the AC power distribution equipment 101 and the DC power distribution equipment is greatly reduced. The DC / DC power supply unit 112a or the AC / DC power supply unit 112b directly supplies power to each first magnetic latching relay drive unit 131 and each second magnetic latching relay drive unit 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 stabilizing unit 111. The first DC / DC voltage regulator unit 111 can electrically isolate the central processing unit 12 from each first magnetic latching relay drive unit 131 and each second magnetic latching relay drive unit 132, thereby reducing the impact of the electrical isolation of each first magnetic latching relay drive unit 131 and each second magnetic latching relay drive unit 132 on the central processing unit 12 when a fault occurs.

[0100] Specifically, the AC / DC power supply unit 112b is used to connect an 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 end of the control module is connected to one input end of the AC / DC power supply unit 112b and the negative power supply end of the control module is connected to the other input end of the AC / DC power supply unit 112b. The electrical device is set as a DC electrical device, and the AC / DC power supply unit 112b is set as an AC / DC chip or an AC / DC circuit.

[0101] Optimally, the AC power supply is set to a 220V system, and the AC power-consuming equipment includes an AC motor or an AC charging pile.

[0102] Specifically, the central processing unit 12 is set as a CPU or an MCU. The DC / DC power supply unit 112a is set as a DC / DC power supply circuit or a DC / DC power supply chip. The first DC / DC voltage regulator unit 111 is set as a first DC / DC voltage regulator circuit or a first DC / DC voltage regulator chip. Each first magnetic latching relay driving unit 131 is set as a first pulse chip or a first pulse circuit. Each second magnetic latching relay driving unit 132 is set as a second pulse chip or a second pulse circuit.

[0103] Among them, the central processing unit 12 controls each first magnetic holding relay drive unit 131 to independently send out a first pulse signal or a second pulse signal; the central processing unit 12 simultaneously controls multiple first magnetic holding relay drive units 131 to send out a first pulse signal or a second pulse signal; the central processing unit 12 controls some of the first magnetic holding relay drive units 131 to send out a first pulse signal while also sending out a second pulse signal to other parts of the first magnetic holding relay drive units 131.

[0104] The central processing unit 12 controls each second magnetic holding relay drive unit 132 to independently send out a third pulse signal or a fourth pulse signal; the central processing unit 12 simultaneously controls multiple second magnetic holding relay drive units 132 to send out a third pulse signal or a fourth pulse signal; the central processing unit 12 controls some of the second magnetic holding relay drive units 132 to send out a third pulse signal while also sending out a fourth pulse signal to other parts of the second magnetic holding relay drive units 132.

[0105] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module further includes a second DC / DC voltage stabilizing unit 113 and a communication module 141; the communication module 141 is used for communication connection with a host computer, the output end of the second DC / DC voltage stabilizing unit 113 is electrically connected to the power supply end of the communication module 141, the output end of the DC / DC power supply unit 112a includes a first voltage output end and a second voltage output end, and the AC / DC power supply unit 112b includes a first voltage output end and a second voltage output end;

[0106] 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 stabilizing unit 111, the power supply terminals of each first magnetic latching relay driving unit 131 and the power supply terminals of each second magnetic latching relay driving unit 132, and the 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 stabilizing unit 113;

[0107] Or the first voltage output end of the AC / DC power supply unit 112b is electrically connected to the input end of the first AC / DC voltage stabilizing unit, the power supply end of each first magnetic holding relay driving unit 131 and the power supply end of each second magnetic holding relay driving unit 132, and the second voltage output end of the AC / DC power supply unit 112b is electrically connected to the input end of the second DC / DC voltage stabilizing unit 113.

[0108] The second DC / DC voltage stabilizing unit 113 electrically isolates the communication module 141 from the power supply end of each first magnetic latching relay driving unit 131 , electrically isolates the communication module 141 from the power supply end of each second magnetic latching relay driving unit 132 , and also electrically isolates the communication module 141 from the central processing unit 12 .

[0109] Specifically, the host computer is set as a monitoring platform or FSU. The second DC / DC voltage regulator unit 113 is set as a second DC / DC voltage regulator chip or a second DC / DC voltage regulator circuit. The monitoring platform and FSU can communicate with the control module, so that the monitoring platform and FSU send control instructions to the control module and retrieve the internal information of the control module to realize monitoring, management and control of the control module.

[0110] Optimally, the DC voltage outputted by the first voltage output terminal is 12V. The DC voltage outputted by the second voltage output terminal is 15V. The DC voltage outputted by the first DC / DC voltage stabilizing unit 111 is 5V. The DC voltage outputted by the second DC / DC voltage stabilizing unit 113 is 5V. The AC / DC power supply unit 112b inputs 220V AC power. The DC / DC power supply unit 112a inputs 48V DC power.

[0111] Furthermore, as a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the communication module 141 is set to an RS485 chip, and the RS485 chip supports any one of the Modbus-RTU protocol and the free communication protocol.

[0112] For further information, see Figure 2 , Figure 3 and Figure 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 also includes an AD channel switching module 15;

[0113] 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 .

[0114] The AD channel switching module 15 facilitates the central processing unit 12 to collect analog signals.

[0115] Specifically, the control module also includes a voltage sampling module 173;

[0116] The voltage sampling module 173 is electrically connected to the input end of the AD channel switching module 15 and is used to collect voltage signals. The input end of the voltage sampling module 173 is set to the control voltage sampling end 191;

[0117] 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 .

[0118] The control module collects voltage signals, making it convenient for users to carry out further processing on the collected voltage signals.

[0119] Optimally, the voltage sampling module 173 is used to collect the voltage signal of the circuit controlled by the contacts of each first magnetic holding relay element, and is also used to collect the voltage signal of the circuit controlled by the contacts of each second magnetic holding relay element; the AD channel switching module 15 is used to receive 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 to receive each detection information.

[0120] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a fault indication module 161, which is communicated 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.

[0121] When the fault indication module 161 is turned on, the fault indication module 161 serves to remind the user, thereby reminding the user to maintain the control module or maintain related equipment connected to the control module.

[0122] 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;

[0123] 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;

[0124] When the central processing unit 12 receives the real-time working status information, the central processing unit 12 determines 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 indication module 161 is turned on to issue a fault message; if any detection information is not different from the corresponding real-time working status information, the fault indication module 161 is turned off and no fault message is issued.

[0125] The relay state identification module 163 performs real-time identification of the interruption or closing conduction of each first magnetic latching relay element, and performs 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 closing conduction is on. Each first magnetic latching relay element sends a corresponding second preset voltage to the central processing unit 12 when the opening is off. The first preset voltage corresponding to each first magnetic latching relay element when the closing conduction is the same as the corresponding detection information, and the second preset voltage corresponding to each first magnetic latching relay element when the opening is off is the same as the corresponding detection information. At this time, the fault indication module 161 does not issue a fault message. If the first preset voltage corresponding to any first magnetic latching relay element when the closing conduction is different from the corresponding detection information, or the second preset voltage corresponding to any first magnetic latching relay element when the opening is off is different from the corresponding detection information, the fault indication module 161 issues a fault message.

[0126] The real-time working status information also 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 closed. Each second magnetic latching relay element sends a corresponding fourth preset voltage to the central processing unit 12 when the switch is closed. The third preset voltage corresponding to each second magnetic latching relay element when the switch is closed is the same as the corresponding detection information, and the fourth preset voltage corresponding to each second magnetic latching relay element when the switch is closed is the same as the corresponding detection information. At this time, the fault indication module 161 does not issue a fault message. If the third preset voltage corresponding to any second magnetic latching relay element when the switch is closed is different from the corresponding detection information, or the fourth preset voltage corresponding to any second magnetic latching relay element when the switch is closed is different from the corresponding detection information, the fault indication module 161 issues a fault message.

[0127] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a fault indicator light 162, which 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.

[0128] The fault indicator light 162 serves to quickly remind the user.

[0129] Specifically, if any detection information is different from the corresponding real-time working state information, the fault indication module 161 makes the fault indicator light 162 light up; if any detection information is not different from the corresponding real-time working state information, the fault indication module 161 does not make the fault indicator light 162 light up. Through the fault indicator light 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 has a fault, so that it is convenient for the user to check and replace the first magnetic latching relay element or / and the second magnetic latching relay element connected to the control module.

[0130] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a temperature analog input port 171, and the temperature analog input port 171 is used to connect a temperature collector. 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 that the user can collect temperature-related information.

[0131] 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. By collecting the temperature digital information, the central processing unit 12 can execute the corresponding first operation instruction according to the temperature digital information. Specifically, the first operation instruction is set to: compare the temperature digital information with the preset temperature threshold value, and control the opening and closing of each magnetic latching relay.

[0132] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also 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.

[0133] Specifically, the current analog input port 172 is used to collect a first input current signal of the input end of the DC / DC power supply unit 112a or a second input current signal of the input end of the AC / DC power supply unit 112b;

[0134] 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;

[0135] The AD channel switching module 15 is also used 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 .

[0136] By collecting the current digital information, the central processing unit 12 can execute the corresponding second operation instruction according to the current digital information 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 of each magnetic latching relay.

[0137] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a wireless communication module 142, which is used to communicate with the cloud platform, and the wireless communication module 142 is communicated with the central processing unit 12.

[0138] 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 to realize the monitoring, management and control of the control module.

[0139] 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.

[0140] For further information, see Figure 2 , Figure 3 and Figure 4 As a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the control module also includes a dip switch 18, which is communicatively connected to the central processing unit and is used to expand the communication address of the control module, so as to facilitate the distinction between different control modules and facilitate the user to monitor, transmit data and control different control modules.

[0141] Specifically, the user monitors, transmits data and controls different control modules through the cloud platform and / or the host computer.

[0142] Furthermore, as a specific implementation of a low-cost, high-power intelligent controlled DC power distribution system provided by the present invention, the central processing unit 12 is configured as a CPU or an MCU.

[0143] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-cost, high-power intelligent controlled DC power distribution system, characterized in that: The invention comprises a control module, a switching unit, a plurality of first magnetic latching relay elements, and second magnetic latching relay elements corresponding to each of the first magnetic latching relay elements one by one; The control module is used to control the closing and conducting or opening and closing of each first magnetic latching relay element and each second magnetic latching relay element; The pulse input ends of all the first magnetic latching relay elements and the pulse input ends 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 to or disconnected from 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 other end of the contact of the first magnetic latching relay element and the other end of the corresponding contact of the second magnetic latching relay element are connected to a node, and each node is used to correspond one-to-one with an electrical device and to connect to the power-on end of the corresponding electrical device.

2. A low-cost, high-power, intelligently controlled DC power distribution system as claimed in claim 1, characterized in that: The on-off unit includes a first relay and a second relay; One end of the contact of the first relay is electrically connected to the power supply, and the other end of the contact 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 of the second relay is electrically connected to the power supply, and the other end of the contact of the second relay is electrically connected to one end of the contacts of all the second magnetic latching relay elements.

3. A low-cost, high-power intelligent controlled DC power distribution system as claimed in claim 2, characterized in that: The control module is also used to control the closing and conducting or the opening and closing of the first relay, and is also used to control the closing and conducting or the opening and closing 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. A low-cost, high-power intelligent controlled DC power distribution system as claimed in claim 1, characterized in that: The low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of first diodes, each of which corresponds one-to-one to the first magnetic holding relay element, the positive terminal of each of the first diodes being electrically connected to the other end of the contact of the corresponding first magnetic holding relay element, and the negative terminal of each of the first diodes being electrically connected to the corresponding node.

5. A low-cost, high-power, intelligently controlled DC power distribution system as claimed in claim 4, characterized in that: The low-cost high-power intelligent controlled DC power distribution system further includes a plurality of second diodes, each of the second diodes corresponding to the second magnetic latching relay element one by 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.

6. A low-cost, high-power intelligent controlled DC power distribution system as claimed in claim 1, characterized in that: The low-cost, high-power, intelligently controlled DC power distribution system also includes a plurality of power protection switch devices, each of which corresponds to the node one by one, and each of which has a first end and a second end. The first end of each of the power protection switch devices is electrically connected to the corresponding node, and the other end of each of the power protection switch devices is electrically connected to the power-on end of the corresponding power-consuming equipment.

7. A low-cost, high-power, intelligently controlled DC power distribution system as claimed in claim 6, characterized in that: The control module is also used for sampling voltage, and the control module includes multiple control voltage sampling terminals. The low-cost, high-power intelligent control DC power distribution system also includes multiple voltage sampling lines, each of the voltage sampling lines corresponds to the power protection switch device one by one, each of the voltage sampling lines corresponds to the control voltage sampling terminal one by one, 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 terminal.

8. A low-cost, high-power, intelligently controlled DC power distribution system as claimed in claim 1, characterized in that: The low-cost high-power intelligent controlled DC power distribution system further includes a total protection switch device, wherein the total protection switch device has a first end and a second end; The on-off unit is further used to control one end of the contacts of all the first magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device, and is also used to control one end of the contacts of all the second magnetic latching relay elements to be simultaneously connected or disconnected from the first end of the overall protection switch device; The second end of the main protection switch device is electrically connected to the power supply.

9. A low-cost, high-power intelligent controlled DC power distribution system as claimed in claim 1, characterized in that: The control module further includes a positive power supply terminal and a negative power supply terminal. The positive power supply terminal of the control module is used to connect to the power supply, and the negative power supply terminal of the control module is used to connect to the power supply or ground.

10. A low-cost, high-power, intelligently controlled DC power distribution system as claimed in claim 9, characterized in that: The low-cost, high-power, intelligently controlled DC power distribution system also includes a control module power protection switch device, which 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 end of the control module, and the second end of the control module power protection switch device is electrically connected to the power supply.

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