Switch control electrical box and power distribution method

Abstract

The present invention discloses a switch control electrical box and a power distribution method. The switch control electrical box includes a housing, and a conductive strip for centrally supplying power to each MOS transistor is embedded on the circuit board in the housing. Therefore, each MOS transistor serving as a switch inside the switch control electrical box can be installed on the circuit board relatively compactly, so that while the switch control electrical box has a multi-way switch control circuit, its volume is very small. When used in electrical equipment such as vehicles, it occupies little space and is more flexible to install. Since the power distribution method in the present invention is to supply power centrally through the conductive strip, the heat generation of the switch control electrical box is mainly concentrated on the conductive strip. By providing a conductive strip heat dissipation plate on one side of the housing, most of the heat generated by the switch control electrical box can be dissipated in time, and the conductive strip is erected by ribs on the conductive strip heat dissipation plate, which is more conducive to heat dissipation, prevents failures due to overheating during use, and extends the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical boxes, and particularly relates to a switch-controlled electrical box and a power distribution method. Background Art

[0002] For electrified products equipped with multiple electrical devices, such as vehicles, generally an electrical box capable of controlling multiple circuits for on / off is required to be connected between the battery and each electrical device to supply power to each electrical device or timely control the circuit to disconnect. Existing electrical boxes capable of realizing this function generally set multiple relays in the box, and achieve the purpose of controlling each electrical device by controlling the on / off of the relays. Such electrical boxes generally have disadvantages such as large volume, poor heat dissipation, and inconvenient maintenance. Therefore, it is necessary to design a switch-controlled electrical box to overcome the above deficiencies. Summary of the Invention

[0003] The present invention aims to provide a switch-controlled electrical box to solve the technical problems of large volume, poor heat dissipation, and inconvenient maintenance in the existing switch control box.

[0004] To solve the above technical problems, the first aspect of the present invention is:

[0005] Design a switch-controlled electrical box, including a housing. A circuit board is provided in the housing. A conductive strip for centralized power supply is embedded on the circuit board. A conductive strip heat sink is provided on one side of the housing. An electrical input copper busbar electrically connected to the conductive strip is provided in the housing. A plurality of MOS transistors are provided on the circuit board. The input ends of the MOS transistors are all electrically connected to the conductive strip. A power distribution interface is provided on the housing. A plurality of electrical output pins are provided in the power distribution interface. The electrical output pins are correspondingly electrically connected to the output ends of the MOS transistors. A plurality of control pins are also provided in the power distribution interface. A processor is provided on the circuit board. The control pins are correspondingly electrically connected to the processor, and the processor is correspondingly signal-connected to the control ends of the MOS transistors.

[0006] Preferably, the circuit board includes an upper circuit board and a lower circuit board. The lower ends of the control pins are soldered on the upper circuit board. The lower ends of the electrical output pins are soldered on the lower circuit board. Through holes corresponding to the electrical output pins are provided on the upper circuit board. A stepped portion for supporting the upper circuit board is provided in the middle of the electrical output pins.

[0007] Preferably, the conductive strip is embedded in the lower circuit board. Each MOS transistor is provided on the lower circuit board. The processor is provided on the upper circuit board. A communication plug is provided on the bottom surface of the upper circuit board. A communication socket is correspondingly provided on the upper surface of the lower circuit board. The communication plug is plugged into the communication socket.

[0008] Preferably, some of the electrical output pins in the power distribution interface are electrically connected to the corresponding MOS tubes through the circuit in the lower circuit board, and the remaining electrical output pins are electrically connected to the corresponding MOS tubes through jumper wires arranged on the lower circuit board.

[0009] Preferably, a distribution compartment is provided between the upper circuit board and the lower circuit board, a first notch corresponding to the distribution compartment is provided on the upper circuit board, a second notch is correspondingly provided on the shell, and a top cover corresponding to the second notch is provided on the shell; the electrical input copper bus is arranged in the distribution compartment.

[0010] Preferably, an electrical output copper busbar is further provided in the power distribution warehouse, a parallel MOS tube is provided on the circuit board, and the electrical output copper busbar is electrically connected to the output end of the parallel MOS tube.

[0011] Preferably, a thermally conductive insulating gasket is provided on the bottom surface of the conductive strip, a convex rib corresponding to the conductive strip is provided on the heat dissipation plate of the conductive strip, and the conductive strip is padded on the convex rib via the thermally conductive insulating gasket.

[0012] Preferably, the MOS tube has a feedback terminal, and the feedback terminal is connected to the processor in response to a signal.

[0013] Preferably, the processor and the power distribution interface are provided in plurality.

[0014] The second aspect of the present invention is:

[0015] A power distribution method for a switch-controlled electrical box according to any one of the first aspects of the present invention is designed, comprising:

[0016] Centrally supplying power to each of the MOS tubes through a conductive strip embedded on the circuit board;

[0017] After the electrical input copper bar is connected to the power supply, some of the electrical output pins can directly output current, and some of the electrical output pins can be powered on or off after receiving the control signal through the control pin;

[0018] When the current in a MOS tube exceeds the limit, the feedback terminal of the MOS tube sends a signal to the processor, and the processor sends a signal to control the MOS tube to be disconnected.

[0019] The main beneficial technical effects of the present invention are:

[0020] 1. The switch control electrical box provided by the present invention is provided with a conductive strip for centrally supplying power to each MOS transistor on the circuit board in the housing. Therefore, each MOS transistor serving as a switch inside the switch control electrical box can be relatively compactly installed on the circuit board, enabling the switch control electrical box to have a multi-channel switch control circuit while being very small in size. When used in electrical equipment such as vehicles, it occupies little space and is more flexible to install, greatly improving the competitiveness compared with other electrical boxes.

[0021] 2. Since the power distribution method of the present invention is to centrally supply power through the conductive strip, the heat generation of the switch control electrical box is mainly concentrated on the conductive strip. By providing a conductive strip heat dissipation plate on one side of the housing, most of the heat generated by the switch control electrical box can be dissipated in a timely manner, and the conductive strip is erected by the ribs on the conductive strip heat dissipation plate, which is more conducive to heat dissipation, preventing failures due to overheating during use and ensuring a long service life.

[0022] 3. A stepped portion for supporting the upper circuit board is provided in the middle of the electrical output pin. The via holes on the upper circuit board correspondingly pass through the electrical output pin, and the lower surface of the upper circuit board is supported on the stepped portion. In this way, the upper circuit board and the electrical output pin can be disassembled, and the communication joint between the upper circuit board and the lower circuit board can also be separated. Therefore, in the later stage, the upper circuit board and the lower circuit board can be disassembled, facilitating quality inspection and repair of the lower circuit board.

[0023] 4. By providing parallel MOS transistors on the circuit board and an electrical output copper bar electrically connected to the parallel MOS transistors, power can be supplied to high-power loads, increasing the applicable range of the switch control electrical box.

[0024] 5. Some MOS transistors in the switch control electrical box can be directly turned on, and some MOS transistors are controlled to turn on and off through control signals. Therefore, it can meet the usage requirements of different loads in electrical equipment such as automobiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the switch control electrical box of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the double-layer circuit board in an embodiment of the switch control electrical box of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the lower circuit board in an embodiment of the switch control electrical box of the present invention.

[0028] Figure 4 It is a schematic internal structure diagram of an embodiment of the switch control electrical box of the present invention.

[0029] Figure 5 This is a schematic structural diagram when the top cover of an embodiment of the switch control electrical box of the present invention is removed.

[0030] Figure 6 This is a three-dimensional structural diagram of the power distribution bin in an embodiment of the switch control electrical box of the present invention.

[0031] Figure 7 This is an exploded view of the electrical input copper bar and the electrical output copper bar in an embodiment of the switch control electrical box of the present invention.

[0032] Figure 8 This is a schematic structural diagram of the sealing ring in the power distribution bin in an embodiment of the switch control electrical box of the present invention.

[0033] Figure 9 This is an exploded view of the communication joint in an embodiment of the switch control electrical box of the present invention.

[0034] Figure 10 This is a three-dimensional structural diagram of the electrical output pin and the control pin in an embodiment of the switch control electrical box of the present invention.

[0035] Figure 11 This is a schematic structural diagram of the bottom of an embodiment of the switch control electrical box of the present invention.

[0036] Figure 12 This is a schematic diagram of the positional relationship between the conductive strip and the conductive strip heat sink in an embodiment of the switch control electrical box of the present invention.

[0037] Figure 13 This is a schematic structural diagram of the third sealing ring in an embodiment of the switch control electrical box of the present invention.

[0038] Figure 14 This is a three-dimensional structural diagram of another embodiment of the switch control electrical box of the present invention.

[0039] In the above figures, the reference numerals denote: housing 1, second notch 11, top cover 12, hinge seat 121, buckle 122, wiring hole 123, power distribution interface 2, electrical output pin 21, step portion 211, positioning step portion 212, control pin 22, positioning step portion 221, upper circuit board 3, first notch 31, lower circuit board 4, MOS transistor 41, conductive strip 42, electrical connection point 421, electrical input copper busbar 43, electrical input terminal 431, first sub-copper busbar 432, first sub-terminal 433, first pin 434, electrical output copper busbar 44, electrical output terminal 441, second sub-copper busbar 442, second sub-terminal 443, second pin 444, parallel copper busbar 445, parallel MOS transistor 45, communication connector 46, communication plug 461, communication socket 462, jumper wire 47, second sealing groove 48, third sealing ring 49, power distribution chamber 5, ear seat 51, partition 52, notch 53, insertion interface 54, first sealing ring 55, second sealing ring 56, first sealing groove 57, conductive strip heat sink 6, rib 61. Detailed implementation manners

[0040] The following describes the detailed implementation manners of the present invention in conjunction with the drawings and embodiments. However, the following embodiments are only used to illustrate the present invention in detail and do not limit the scope of the present invention in any way.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These 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 operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0042] Embodiment 1:

[0043] A switch-controlled electrical box, please refer to Figures 1 to 13 .

[0044] As Figure 1 shown, the switch-controlled electrical box includes a housing 1. A total of five power distribution interfaces 2 are provided on the housing 1, and the codes are A 1 , B 1、 C 1 , D 1 , E 1 respectively. Again, as Figure 2 shown, a circuit board is provided in the housing 1. The circuit board in this embodiment is a double-layer circuit board, including an upper circuit board 3 and a lower circuit board 4. As Figure 3As shown, there are five groups of MOS transistors 41 provided on the lower circuit board 4. Each group is divided into two rows, and each row has 5 MOS transistors. These MOS transistors are used as switches, and each group of MOS transistors corresponds to a power distribution interface.

[0045] As Figure 4 shown, a conductive strip 42 for centralized power supply is embedded in the lower circuit board 4. Electrical connection points 421 corresponding to the respective MOS transistors are provided on the conductive strip 42. The electrical input terminals of the respective MOS transistors are respectively electrically connected to the electrical connection points 421 on the conductive strip 42. As Figure 2 shown, an electrical input copper busbar 43 electrically connected to the conductive strip 42 is further provided in the housing 1. An electrical input terminal 431 for connecting to a power source is provided on the electrical input copper busbar 43, so as to supply power to the respective MOS transistors.

[0046] As Figure 2 shown, a power distribution chamber 5 is provided between the upper circuit board 3 and the lower circuit board 4. As Figure 6 shown, ear seats 51 are provided on both sides of the power distribution chamber 5. The ear seats 51 are clamped between the upper circuit board 3 and the lower circuit board 4 and fixed by screws. The interior of the power distribution chamber 5 is vertically through. The electrical input copper busbar 43 is arranged in the power distribution chamber 5. Electrical output copper busbars 44 for passing large currents are respectively provided on both sides of the electrical input copper busbar 43 in the power distribution chamber 5. Electrical output terminals 441 are provided on the electrical output copper busbars 44. Again, as Figure 3 shown, parallel MOS transistors 45 are provided on the lower circuit board 4. The parallel MOS transistors 45 include two parallel MOS transistors. The electrical output copper busbar 44 is electrically connected to the output terminals of the parallel MOS transistors 45. In this way, the electrical output copper busbar 44 can supply power to a load with a relatively large power.

[0047] As Figure 6 shown, a partition 52 is provided inside the power distribution chamber 5, so as to isolate the electrical input copper busbar 43 and the electrical output copper busbar 44 to ensure electrical safety. A notch 53 and an insertion interface 54 are provided on the side of the power distribution chamber 5 for positioning the electrical input copper busbar 43 and the electrical output copper busbar 44.

[0048] As Figure 7As shown in the figure, the electric input copper busbar 43 is provided with a first sub-copper busbar 432. A first sub-wiring terminal 433 is provided on the first sub-copper busbar 432. A first pin 434 for welding on the lower circuit board 4 is provided at the bottom of the first sub-copper busbar 432. When the electric input copper busbar 43 is arranged in the power distribution bin 5, the electric input copper busbar 43 is electrically connected to the first sub-wiring terminal 433. Similarly, the electric output copper busbar 44 is provided with a second sub-copper busbar 442. A second sub-wiring terminal 443 is provided on the second sub-copper busbar 442. A second pin 444 for welding on the lower circuit board 4 is provided at the bottom of the second sub-copper busbar 442. When the electric output copper busbar 44 is arranged in the power distribution bin 5, the electric output copper busbar 44 is electrically connected to the second sub-wiring terminal 443. By providing the first sub-copper busbar 432 for the electric input copper busbar 43 and the second sub-copper busbar 442 for the electric output copper busbar 44, it is convenient for the assembly, disassembly and repair of each copper busbar, and good electrical connection is ensured.

[0049] As Figure 2 shown, a first notch 31 corresponding to the power distribution bin 5 is provided on the upper circuit board 3. As Figure 5 shown, a second notch 11 is correspondingly provided on the housing 1. Therefore, the upper part of the power distribution bin 5 can extend through the first notch 31 to the second notch 11, which is convenient for the electric input copper busbar 43 and the electric output copper busbar 44 to be wired to the outside. As Figure 1 shown, a top cover 12 corresponding to the second notch 11 is provided on the housing 1. As Figure 6 shown, a first sealing groove 57 is provided on the upper edge of the power distribution bin 5. Combining Figure 8 shown, a first sealing ring 55 corresponding to the first sealing groove 57 is provided. When the top cover 12 is covered on the second notch 11, the top cover 12 forms a seal with the power distribution bin 5 through the first sealing ring 55, and three second sealing rings 56 corresponding to the respective jacks 54 are provided, so that the electric input copper busbar 43 and the electric output copper busbar 44 are wrapped and sealed at the jacks 54.

[0050] As Figure 5 shown, a hinge seat 121 is provided at the top of the housing 1, so that the rear part of the top cover 12 is hinged on the housing 1. Again, as Figure 1 shown, the front part of the top cover 12 is snap-connected to the housing 1 through a buckle 122. Three wiring holes 123 are provided on the front side of the top cover 12 for wiring the electric input copper busbar 43 and the electric output copper busbar 44.

[0051] In this embodiment, after the electric input copper busbar 43 is powered on, some of the MOS transistors are directly turned on, and some of the MOS need to be controlled to turn on and off through a control signal. This is because, taking an automobile as an example, some of the electrical equipment in the automobile needs to be powered all the time, while some of the electrical equipment needs to be controlled to turn on or off through an instruction. Therefore, the switch control electrical box in this embodiment needs to have corresponding functions. For this reason, as Figure 1As shown, each power distribution interface 2 is provided with fifteen columnar pins, including ten power output pins and five control pins. The power output pins are used to supply power to electrical loads, and the control pins are used to input control signals to control the corresponding MOS transistors. Each power output pin is respectively connected to the power output terminal of a MOS transistor. If the MOS transistor connected to a certain power output pin is turned on, this power output pin can supply power to the load electrically connected thereto. One of the ten power output pins is thicker and is suitable for supplying power to a larger power load.

[0052] As Figure 3 shown, five power output pins in the power distribution interface 2 are electrically connected to the corresponding MOS transistors through the circuits in the lower-layer circuit board 4, and the remaining five power output pins are electrically connected to the corresponding MOS transistors through jumper wires 47 provided on the lower-layer circuit board 4. This is because the power output pins in the same power distribution interface 2 are relatively concentrated, while the corresponding MOS transistors are relatively dispersed. By providing the jumper wires 47, more MOS transistors can be arranged on a circuit board with a smaller area. And because the MOS transistors used are relatively small themselves, the switch control electrical box is small in size and can have more switch control circuits.

[0053] As Figure 3 shown, a communication connector 46 is provided between the upper-layer circuit board 3 and the lower-layer circuit board 4. As Figure 9 shown, this communication connector includes a communication plug 461 soldered to the bottom surface of the upper-layer circuit board 3 and a communication socket 462 soldered to the upper surface of the lower-layer circuit board 4 correspondingly. The communication plug 461 is inserted into the communication socket 462. In this way, the upper and lower circuit boards can communicate.

[0054] Three processors (not shown in Figure 2 ) are provided on the upper-layer circuit board 3. This processor is a single-chip microcomputer. The lower ends of the control pins are soldered to the upper-layer circuit board 3, and the control pins are electrically connected to the wiring terminals of the processor through the circuits in the upper-layer circuit board 3 correspondingly. Thus, a control signal can be sent to the processor through the control pins, and the processor then transmits the signal to the control terminals of the corresponding MOS transistors on the lower-layer circuit board 4 to control the on / off of the MOS transistors.

[0055] In addition, each MOS transistor has a feedback terminal, and the feedback terminals are correspondingly signal-connected to the processor. When the current in a certain MOS transistor exceeds the limit, the feedback terminal of this MOS transistor sends a signal to the processor, and the processor sends a signal to timely control this MOS transistor to turn off to form protection.

[0056] In this embodiment, the ten power output pins in the power distribution interface 2 are longer pins, and the five control pins are shorter pins. Therefore, the lower ends of the power output pins can be soldered to the lower-layer circuit board 4, and via holes corresponding to the power output pins are provided on the upper-layer circuit board 3. And asFigure 10 As shown, a step portion 211 for supporting the upper circuit board 3 is provided in the middle of the electrical output pin 21, and the via hole on the upper circuit board 3 passes through the electrical output pin 21 accordingly, and the lower surface of the upper circuit board 3 is supported on the step portion 211, so that the upper circuit board 3 and the electrical output pin 21 are not fixedly connected, and the communication plug 461 and the communication socket 462 in the communication connector 46 can also be separated, so that the upper circuit board 3 and the lower circuit board 4 can be separated later, which is convenient for quality inspection and maintenance of the circuit boards.

[0057] like Figure 10 As shown, a positioning step 212 is provided at the bottom of the electric output pin 21, so that when the electric output pin 21 is welded on the lower circuit board 4, the welding position of the electric output pin 21 can be positioned. Similarly, a positioning step 221 is also provided at the bottom of the control pin 22, so that when the control pin 22 is welded on the upper circuit board 3, the welding position of the control pin 22 can be positioned. Therefore, it can be ensured that the tops of the electric output pins 21 and the control pins 22 of the power distribution interface 2 are flush and located on the same horizontal plane. When used later, the power distribution interface 2 has good contact with the power supply interface of the power-consuming equipment.

[0058] like Figure 11 As shown, a conductive strip heat sink 6 is provided on the bottom side of the housing 1. The conductive strip heat sink 6 is an aluminum plate and has good heat dissipation function. Figure 12 As shown, the conductive strip heat sink 6 is provided with convex ribs 61 corresponding to the conductive strips 42, and the bottom surface of the conductive strips 42 is padded with a thermally conductive insulating gasket, so that the conductive strips 42 are padded on the convex ribs 61 through the thermally conductive insulating gasket, so that the conductive strips 42 are supported on the conductive strip heat sink 6, which is more conducive to heat dissipation. This embodiment arranges the conductive strips 42 with centralized power supply and specially designs the special conductive strip heat sink 6, so that the components inside the switch control electrical box are compact while ensuring good heat dissipation capacity to prevent malfunctions due to overheating during use.

[0059] like Figure 4 As shown, a second sealing groove 48 is provided at the bottom edge of the housing 1, and the second sealing groove 48 is provided with Figure 13 The third sealing ring 49 is shown, and the conductive strip heat sink 6 and the housing 1 are sealed by the third sealing ring 49 .

[0060] Embodiment 2:

[0061] A switch control electrical box, see Figure 14 .

[0062] like Figure 14As shown, compared with Embodiment 1, there are five power distribution interfaces 2 provided on the housing 1 of the switch control electrical box in this embodiment, and the volume of the power distribution bin in this embodiment is larger. The power distribution bin occupies the entire internal volume at the rear side of the housing 1. In the notch at the top of the housing 1, eight electrical output copper bars 44 are provided on each side of the electrical input terminal 431. A post for wiring is provided on each electrical output copper bar 44 (the posts on each copper bar are not fully shown in the figure). Among them, on the right side of the electrical input terminal 431, two electrical output copper bars are connected in parallel through a parallel copper bar 445. In this way, these two electrical output copper bars can output a larger current, and other electrical output copper bars can also be connected in parallel. By providing a plurality of electrical output copper bars 44, the power consumption requirements of more high-power loads can be met.

[0063] Embodiment 3:

[0064] A power distribution method for a switch control electrical box, where the switch control electrical box is the switch control electrical box in Embodiment 1. The power distribution method specifically includes:

[0065] (1) Concentrated power supply is provided for each MOS transistor through the conductive strips embedded on the circuit board. This can make the electrical box small in size and convenient for centralized heat dissipation, which is beneficial to controlling the heat generation of the electrical box.

[0066] (2) After the electrical input copper bar is connected to the power supply, some of the electrical output pins can directly output current, and some of the electrical output pins can be powered on or off after obtaining a control signal through the control pins. This design method enables the switch control electrical box to meet the usage requirements of different loads. In specific work, the MOS transistors are controlled by sending signals to the processor.

[0067] (3) When the current in a certain MOS transistor exceeds the limit, the feedback terminal of the MOS transistor sends a signal to the processor, and the processor sends a signal to control the MOS transistor to turn off. By managing the MOS transistors, it is beneficial to prevent the MOS transistors from operating overload, prevent the MOS transistors from being damaged, and improve the service life of the switch control electrical box.

[0068] The above has described the present invention in detail with reference to the drawings and embodiments. However, those skilled in the art can understand that without departing from the technical concept of the present invention, various specific parameters in the above embodiments can be changed, or equivalent substitutions can be made for related components, structures, and materials, thereby forming multiple specific embodiments, which are all within the common variation range of the present invention and will not be elaborated herein one by one.

Claims

1. A switch-controlled electrical appliance box, comprising a housing, wherein a circuit board is provided in the housing, characterized in that, A conductive strip for centralized power supply is embedded on the circuit board, a conductive strip heat sink is provided on one side of the shell, and an electric input copper busbar electrically connected to the conductive strip is provided in the shell; a plurality of MOS tubes are provided on the circuit board, and the input ends of the MOS tubes are electrically connected to the conductive strips, a power distribution interface is provided on the shell, and a plurality of electrical output pins are provided in the power distribution interface, and the electrical output pins are electrically connected to the output ends of the MOS tubes correspondingly; a plurality of control pins are also provided in the power distribution interface, a processor is provided on the circuit board, and the control pins are electrically connected to the processor correspondingly, and the processor corresponding signal is connected to the control end of the MOS tube; The conductive strip is provided with electrical connection points corresponding to each MOS tube; The circuit board comprises an upper circuit board and a lower circuit board, the lower end of the control pin is welded on the upper circuit board, the lower end of the electrical output pin is welded on the lower circuit board, the upper circuit board is provided with a via hole corresponding to the electrical output pin, and the middle part of the electrical output pin is provided with a step portion for supporting the upper circuit board; The conductive strip is embedded in the lower circuit board, each of the MOS tubes is arranged on the lower circuit board, the processor is arranged on the upper circuit board, a communication plug is arranged on the bottom surface of the upper circuit board, and a communication socket is arranged on the upper surface of the lower circuit board, and the communication plug is plugged into the communication socket; Some of the electrical output pins in the power distribution interface are electrically connected to the corresponding MOS tubes through the circuit in the lower circuit board, and the remaining electrical output pins are electrically connected to the corresponding MOS tubes through jumper wires arranged on the lower circuit board; The bottom surface of the conductive strip is padded with a thermally conductive insulating gasket, and the heat dissipation plate of the conductive strip is provided with convex ribs corresponding to the conductive strip, and the conductive strip is padded on the convex ribs via the thermally conductive insulating gasket.

2. The switch control electrical box according to claim 1, characterized in that, A power distribution compartment is provided between the upper circuit board and the lower circuit board, a first notch corresponding to the power distribution compartment is provided on the upper circuit board, a second notch is correspondingly provided on the shell, and a top cover corresponding to the second notch is provided on the shell; the electric input copper bus is arranged in the power distribution compartment.

3. The switch control electrical box according to claim 2, wherein An electric output copper busbar is also provided in the power distribution warehouse, a parallel MOS tube is provided on the circuit board, and the electric output copper busbar is electrically connected to the output end of the parallel MOS tube.

4. The switch control electrical box according to claim 1, characterized in that The MOS tube has a feedback terminal, and the feedback terminal is connected to the processor in response to a signal.

5. The switch control electrical box according to claim 1, characterized in that, The processor and the power distribution interface are both provided in plurality.

6. The power distribution method of the switch control electrical box according to any one of claims 1-5, characterized in that include: Centrally supplying power to each of the MOS tubes through a conductive strip embedded on the circuit board; After the electrical input copper bar is connected to the power supply, some of the electrical output pins can directly output current, and some of the electrical output pins can be powered on or off after receiving the control signal through the control pin; When the current in a MOS tube exceeds the limit, the feedback terminal of the MOS tube sends a signal to the processor, and the processor sends a signal to control the MOS tube to be disconnected.

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