CN112864821B - Switch control electrical box and power distribution method - Google Patents
Switch control electrical box and power distribution method Download PDFInfo
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- CN112864821B CN112864821B CN202110319093.4A CN202110319093A CN112864821B CN 112864821 B CN112864821 B CN 112864821B CN 202110319093 A CN202110319093 A CN 202110319093A CN 112864821 B CN112864821 B CN 112864821B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Connection Or Junction Boxes (AREA)
- Distribution Board (AREA)
Abstract
本发明公开了一种开关控制电器盒及配电方法，该开关控制电器盒包括壳体，在壳体中的电路板上嵌设有用于为各MOS管集中供电的导电板条，因此，该开关控制电器盒内部的各个作为开关的MOS管能够比较紧凑的安装在电路板上，使得该开关控制电器盒具有多路开关控制电路的同时，体积十分小巧，使用在车辆等用电设备上时，占据空间小，安装更加灵活。由于本发明中的配电方法是通过导电板条集中供电，因此，该开关控制电器盒的发热主要集中在导电板条上，通过在壳体一侧设置导电板条散热板，能够及时将该开关控制电器盒产生的大部分热量散去，并且导电板条在导电板条散热板上凸筋架起，更加有利于散热，防止使用过程中因过热而出现故障，延长使用寿命。
The present invention discloses a switch control electrical box and a power distribution method. The switch control electrical box includes a shell, and a circuit board in the shell is embedded with a conductive strip for centralized power supply to each MOS tube. Therefore, each MOS tube as a switch inside the switch control electrical box can be installed on the circuit board relatively compactly, so that the switch control electrical box has a multi-way switch control circuit and is very small in size. When used on electrical equipment such as vehicles, it occupies a small space and is more flexible to install. Since the power distribution method in the present invention is to centrally supply power through the conductive strip, the heat generated by the switch control electrical box is mainly concentrated on the conductive strip. By arranging a conductive strip heat sink on one side of the shell, most of the heat generated by the switch control electrical box can be dissipated in time, and the conductive strip is raised with ribs on the conductive strip heat sink, which is more conducive to heat dissipation, preventing failures due to overheating during use, and extending the service life.
Description
Technical Field
The invention relates to the technical field of electrical boxes, in particular to a switch control electrical box and a power distribution method.
Background
For an electrified product equipped with a plurality of electric devices, such as a vehicle, the electrified product is generally required to be connected between a storage battery and each electric device through an electric box capable of controlling multiple paths of on-off so as to supply power to each electric device or timely control the disconnection of a circuit, the existing electric box capable of realizing the function is generally provided with a plurality of relays in the box, the purpose of controlling each electric device is realized through controlling the on-off of the relays, the electric box generally has the defects of large volume, poor heat dissipation, inconvenient maintenance and the like, and therefore, a switch control electric box is necessary to be designed to overcome the defects.
Disclosure of Invention
The invention aims to provide a switch control electric box, which solves the technical problems of large volume, poor heat dissipation and inconvenient maintenance of the switch control box in the prior art.
To solve the above technical problem, a first aspect of the present invention is:
The switch control electrical box comprises a shell, wherein a circuit board is arranged in the shell, a conductive lath used for centralized power supply is embedded on the circuit board, a conductive lath radiating plate is arranged on one side of the shell, an electric input copper bar electrically connected to the conductive lath is arranged in the shell, a plurality of MOS (metal oxide semiconductor) tubes are arranged on the circuit board, input ends of the MOS tubes are electrically connected to the conductive lath, a power distribution interface is arranged on the shell, a plurality of electric output pins are arranged in the power distribution interface and are correspondingly and electrically connected to output ends of the MOS tubes, a plurality of control pins are also arranged in the power distribution interface, a processor is arranged on the circuit board, the control pins are correspondingly and electrically connected to the processor, and signals corresponding to the processor are connected to the control ends of the MOS tubes.
Preferably, the circuit board comprises an upper circuit board and a lower circuit board, the lower ends of the control pins are welded on the upper circuit board, the lower ends of the electric output pins are welded on the lower circuit board, through holes corresponding to the electric output pins are formed in the upper circuit board, and step parts for supporting the upper circuit board are arranged in the middle of the electric output pins.
Preferably, the conductive strip is embedded in the lower circuit board, each MOS tube is arranged on the lower circuit board, the processor is arranged on the upper circuit board, a communication plug is arranged at the bottom of the upper circuit board, a communication socket is correspondingly arranged on the upper surface of the lower circuit board, and the communication plug is inserted in the communication socket.
Preferably, part of the electric output pins in the power distribution interface are electrically connected to the corresponding MOS tubes through circuits in the lower circuit board, and the rest of the electric output pins are electrically connected to the corresponding MOS tubes through jumper wires arranged on the lower circuit board.
Preferably, a power distribution bin is arranged between the upper circuit board and the lower circuit board, the upper circuit board is provided with a first notch corresponding to the power distribution bin, the shell is correspondingly provided with a second notch, the shell is provided with a top cover corresponding to the second notch, and the electric input copper bar is arranged in the power distribution bin.
Preferably, an electric output copper bar is further arranged in the distribution bin, parallel MOS tubes are arranged on the circuit board, and the electric output copper bar is electrically connected to the output ends of the parallel MOS tubes.
Preferably, the bottom pad of the conductive strip is provided with a heat conducting and insulating pad, the heat dissipation plate of the conductive strip is provided with a convex rib corresponding to the conductive strip, and the conductive strip is arranged on the convex rib through the heat conducting and insulating pad.
Preferably, the MOS transistor has a feedback terminal, and the feedback terminal is connected to the processor in correspondence with a signal.
Preferably, the processor and the power distribution interface are both provided with a plurality of processors.
The second aspect of the invention is:
A power distribution method for designing a switch control electrical box according to any one of the first aspects of the present invention includes:
The MOS tubes are intensively supplied with power through conductive strips embedded on the circuit board;
after the electric input copper bar is powered on, one part of the electric output pins can directly output current, and the other part of the electric output pins can be electrified or powered off after the control pins obtain control signals;
when the current in a certain MOS tube exceeds the limit, a feedback terminal of the MOS tube sends a signal to the processor, and the processor sends the signal to control the MOS tube to be disconnected.
The invention has the main beneficial technical effects that:
1. the circuit board in the shell is embedded with the conductive strips for intensively supplying power to the MOS tubes, so that each MOS tube serving as a switch in the switch control electric box can be compactly arranged on the circuit board, the switch control electric box has a multi-way switch control circuit, and meanwhile, the switch control electric box is small in size, occupies small space and is more flexible to install when being used on electric equipment such as vehicles, and compared with other electric boxes, the switch control electric box greatly improves the competitiveness.
2. Because the power distribution method of the invention is to intensively supply power through the conductive lath, the heating of the switch control electric box is mainly concentrated on the conductive lath, and most of the heat generated by the switch control electric box can be timely dissipated through arranging the conductive lath radiating plate on one side of the shell, and the conductive lath is raised on the conductive lath radiating plate, thereby being more beneficial to dissipating heat, preventing faults caused by overheating in the use process and ensuring longer service life.
3. The middle part of the electric output pin is provided with a step part for supporting the upper circuit board, the through hole on the upper circuit board correspondingly penetrates through the electric output pin, and the lower surface of the upper circuit board is supported on the step part, so that the upper circuit board and the electric output pin can be separated, and the communication connector between the upper circuit board and the lower circuit board can be separated, therefore, the upper circuit board and the lower circuit board can be separated at the later stage, and the quality inspection and maintenance of the lower circuit board are facilitated.
4. The parallel MOS tube is arranged on the circuit board, and the electric output copper bar electrically connected with the parallel MOS tube is arranged, so that power can be supplied to a high-power load, and the application range of the switch control electric box is enlarged.
5. A part of MOS (metal oxide semiconductor) tubes in the switch control electrical box can be directly conducted, and the other part of MOS tubes are controlled to be on-off through control signals, so that the use requirements of different loads in electric equipment such as automobiles can be met.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a switch control box according to the present invention.
Fig. 2 is a schematic structural diagram of a double-layer circuit board in an embodiment of the switch control box of the present invention.
Fig. 3 is a schematic structural diagram of a lower circuit board in an embodiment of the switch control box of the present invention.
Fig. 4 is a schematic diagram of an internal structure of an embodiment of the switch control box of the present invention.
Fig. 5 is a schematic structural view of the switch control box according to an embodiment of the present invention when the top cover is removed.
Fig. 6 is a schematic perspective view of a power distribution cabinet in an embodiment of the switch control box of the present invention.
Fig. 7 is an exploded view of an electrical input copper bar and an electrical output copper bar in an embodiment of the switch control box of the present invention.
Fig. 8 is a schematic structural view of a seal ring in a distribution cabinet in an embodiment of the switch control box of the present invention.
Fig. 9 is an exploded view of a communication connector in an embodiment of the switch control box of the present invention.
Fig. 10 is a schematic perspective view of the electrical output pins and the control pins in an embodiment of the switch control box of the present invention.
Fig. 11 is a schematic bottom structure of an embodiment of the switch control box of the present invention.
Fig. 12 is a schematic diagram showing a positional relationship between a conductive strip and a heat dissipating plate of the conductive strip in an embodiment of the switch control box of the present invention.
Fig. 13 is a schematic structural diagram of a third seal ring in an embodiment of the switch control box of the present invention.
Fig. 14 is a schematic perspective view of another embodiment of the switch control box of the present invention.
In the above figures, the reference numerals indicate the case 1, the second notch 11, the top cover 12, the hinge base 121, the buckle 122, the wiring hole 123, the distribution interface 2, the electric output pin 21, the step 211, the positioning step 212, the control pin 22, the positioning step 221, the upper circuit board 3, the first notch 31, the lower circuit board 4, the MOS tube 41, the conductive strip 42, the electric connection point 421, the electric input copper bar 43, the electric input terminal 431, the first sub copper bar 432, the first sub wiring terminal 433, the first pin 434, the electric output copper bar 44, the electric output terminal 441, the second sub copper bar 442, the second sub wiring terminal 443, the second pin 444, the parallel connection copper bar 445, the parallel connection MOS tube 45, the communication connector 46, the communication plug 461, the communication socket 462, the jumper wire 47, the second seal groove 48, the third seal ring 49, the bin 5, the ear mount 51, the partition plate 52, the notch 53, the plug interface 54, the first seal ring 55, the second seal ring 56, the first seal groove 57, the conductive strip 6, and the protruding strip 61.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
please refer to fig. 1-13 together.
As shown in fig. 1, the switch control electrical box includes a casing 1, five power distribution interfaces 2 are provided on the casing 1, the codes are a 1、B1、C1、D1、E1 respectively, and as shown in fig. 2, a circuit board is provided in the casing 1, the circuit board in this embodiment is a double-layer circuit board, and includes an upper layer circuit board 3 and a lower layer circuit board 4, as shown in fig. 3, five groups of MOS tubes 41 are provided on the lower layer circuit board 4, each group is divided into two rows, each row has 5 MOS tubes, these MOS tubes are used as switches, and each group of MOS tubes corresponds to one power distribution interface.
As shown in fig. 4, a conductive strip 42 for centralized power supply is embedded in the lower circuit board 4, an electrical connection point 421 corresponding to each MOS tube is provided on the conductive strip 42, and electrical input terminals of each MOS tube are respectively and correspondingly electrically connected to the electrical connection point 421 on the conductive strip 42, as shown in fig. 2, an electrical input copper bar 43 electrically connected to the conductive strip 42 is further provided in the housing 1, and an electrical input terminal 431 for power supply is provided on the electrical input copper bar 43, so that each MOS tube can be powered.
As shown in fig. 2, a power distribution cabin 5 is provided between the upper circuit board 3 and the lower circuit board 4, and as shown in fig. 6, ear seats 51 are provided on both sides of the power distribution cabin 5, and the ear seats 51 are sandwiched between the upper circuit board 3 and the lower circuit board 4 and fixed by screws. The inside of the distribution bin 5 is vertically penetrated, the electric input copper bars 43 are arranged in the distribution bin 5, electric output copper bars 44 for passing large current are respectively arranged on two sides of the electric input copper bars 43 in the distribution bin 5, electric output binding posts 441 are arranged on the electric output copper bars 44, parallel MOS tubes 45 are arranged on the lower circuit board 4 as shown in fig. 3, the parallel MOS tubes 45 comprise two MOS tubes which are connected in parallel, and the electric output copper bars 44 are electrically connected to output terminals of the parallel MOS tubes 45, so that the electric output copper bars 44 can supply power for loads with larger power.
As shown in fig. 6, a partition plate 52 is provided inside the power distribution bin 5 to isolate the electric input copper bar 43 from the electric output copper bar 44 and ensure the safety of electricity consumption, and a notch 53 and a plug-in port 54 are provided on the side surface of the power distribution bin 5 to position the electric input copper bar 43 and the electric output copper bar 44.
As shown in fig. 7, the electric input copper bar 43 is provided with a first sub copper bar 432 in a matching manner, the first sub copper bar 432 is provided with a first sub connection terminal 433, the bottom of the first sub copper bar 432 is provided with a first pin 434 for welding on the lower circuit board 4, when the electric input copper bar 43 is arranged in the distribution bin 5, the electric input copper bar 43 is electrically connected with the first sub connection terminal 433, the electric output copper bar 44 is provided with a second sub copper bar 442, the second sub copper bar 442 is provided with a second sub connection terminal 443, the bottom of the second sub copper bar 442 is provided with a second pin 444 for welding on the lower circuit board 4, and when the electric output copper bar 44 is arranged in the distribution bin 5, the electric output copper bar 44 is electrically connected with the second sub connection terminal 443. By providing the first sub-copper bar 432 to the electrical input copper bar 43 and providing the second sub-copper bar 442 to the electrical output copper bar 44, the assembly and disassembly maintenance of each copper bar are facilitated, and good electrical connection is ensured.
As shown in fig. 2, the upper circuit board 3 is provided with a first notch 31 corresponding to the distribution cabin 5, and as shown in fig. 5, the housing 1 is correspondingly provided with a second notch 11, so that the upper part of the distribution cabin 5 can extend to the second notch 11 through the first notch 31, thereby facilitating the connection of the electric input copper bar 43 and the electric output copper bar 44 with the outside. As shown in fig. 1, a top cover 12 corresponding to the second notch 11 is arranged on the shell 1, as shown in fig. 6, a first sealing groove 57 is arranged at the upper edge of the distribution bin 5, and as shown in fig. 8, a first sealing ring 55 corresponding to the first sealing groove 57 is arranged, when the top cover 12 is covered on the second notch 11, the top cover 12 forms a seal with the distribution bin 5 through the first sealing ring 55, and three second sealing rings 56 corresponding to the plug interfaces 54 are arranged, so that the electric input copper bars 43 and the electric output copper bars 44 are wrapped and sealed at the plug interfaces 54.
As shown in fig. 5, 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 to the housing 1, and as shown in fig. 1, the front part of the top cover 12 is clamped with the housing 1 by a buckle 122, and three wiring holes 123 are provided at the front side of the top cover 12, so that the electric input copper bar 43 and the electric output copper bar 44 can be wired.
In this embodiment, after the power is turned on by the electric input copper bar 43, a part of MOS tubes are directly turned on, and another part of MOS tubes need to be controlled to be turned on or off by a control signal, which is because, for example, an automobile, a part of electric devices in the automobile need to be powered all the time, and a part of electric devices need to be turned on or off by a command, so the switch control electric box of this embodiment needs to have a corresponding function, and therefore, as shown in fig. 1, fifteen columnar pins are provided in each power distribution interface 2, including ten electric output pins and five control pins, the electric output pins are used for supplying power to an electric load, and the control pins are used for inputting a control signal to control the corresponding MOS tubes. Each electric output pin is correspondingly connected to an electric output terminal of one MOS tube respectively, and if the MOS tube connected with one electric output pin is conducted, the electric output pin can supply power for a load electrically connected with the electric output pin. One of the ten electrical output pins is thicker and is adapted to supply power to a higher power load.
As shown in fig. 3, five electric output pins in the power distribution interface 2 are electrically connected to corresponding MOS tubes through circuits in the lower circuit board 4, and the remaining five electric output pins are electrically connected to corresponding MOS tubes through jumper wires 47 arranged on the lower circuit board 4, which is because the electric output pins in the same power distribution interface 2 are relatively concentrated, and the corresponding MOS tubes are relatively dispersed, and by setting the jumper wires 47, more MOS tubes can be arranged on a circuit board with a smaller area, and because the used MOS tubes are themselves smaller, the switch control electrical box is small in size and can have switch control circuits with more paths.
As shown in fig. 3, a communication connector 46 is provided between the upper circuit board 3 and the lower circuit board 4, and as shown in fig. 9, the communication connector includes a communication plug 461 bonded to the bottom surface of the upper circuit board 3, and a communication socket 462 bonded to the upper surface of the lower circuit board 4, the communication plug 461 being plugged into the communication socket 462, so that the upper and lower circuit boards can communicate.
Three processors (not shown in fig. 2) are arranged on the upper circuit board 3, the processors are single-chip computers, the lower ends of control pins are welded on the upper circuit board 3, the control pins are correspondingly and electrically connected to wiring terminals of the processors through circuits in the upper circuit board 3, so that a control signal can be sent to the processors through the control pins, and the processors can send the signal to the control terminals of corresponding MOS tubes on the lower circuit board 4 through communication connectors 46 to control the MOS tube switches.
In addition, each MOS tube is provided with a feedback terminal, the feedback terminal is correspondingly connected to the processor through a signal, when the current in a certain MOS tube exceeds the limit, the feedback terminal of the MOS tube sends a signal to the processor, and the processor sends the signal to timely control the MOS tube to be disconnected, so that protection is formed.
In this embodiment, ten electrical output pins in the electrical distribution interface 2 are longer pins, five control pins are shorter pins, so that the lower ends of the electrical output pins can be welded on the lower circuit board 4, the upper circuit board 3 is provided with through holes corresponding to the electrical output pins, and as shown in fig. 10, the middle part of the electrical output pins 21 is provided with a step part 211 for supporting the upper circuit board 3, the through holes on the upper circuit board 3 correspondingly pass through the electrical output pins 21, and the lower surface of the upper circuit board 3 is supported on the step part 211, so that the upper circuit board 3 is not fixedly connected with the electrical output pins 21, and the communication plug 461 and the communication socket 462 in the communication connector 46 can be separated, so that the upper circuit board 3 and the lower circuit board 4 can be separated at a later stage, thereby facilitating quality inspection and maintenance of the circuit boards.
As shown in fig. 10, the positioning step 212 is provided at the bottom of the electric output pin 21, so that the welding position of the electric output pin 21 can be positioned when the electric output pin 21 is welded on the lower circuit board 4, and the positioning step 221 is also provided at the bottom of the control pin 22, so that the welding position of the control pin 22 can be positioned when the control pin 22 is welded on the upper circuit board 3, and therefore, it can be ensured that the top level of each electric output pin 21 and each control pin 22 of the power distribution interface 2 is positioned on the same horizontal plane, and the power distribution interface 2 is in good contact with the power supply interface of the electric equipment in the later use.
As shown in fig. 11, the bottom side of the housing 1 is provided with a conductive strip heat dissipation plate 6, the conductive strip heat dissipation plate 6 is an aluminum plate, and has a good heat dissipation function, as shown in fig. 12, the conductive strip heat dissipation plate 6 is provided with a convex rib 61 corresponding to the conductive strip 42, and the bottom surface of the conductive strip 42 is provided with a heat conduction insulating gasket, so that the conductive strip 42 is placed on the convex rib 61 through the heat conduction insulating gasket, and in this way, the conductive strip 42 is erected on the conductive strip heat dissipation plate 6, which is more beneficial to heat dissipation. In the embodiment, the conductive strips 42 for centralized power supply are arranged, and the special conductive strip heat dissipation plate 6 is specially designed, so that the internal components of the switch control electric box are compact, good heat dissipation capacity is ensured, and faults caused by overheating in the use process are prevented.
As shown in fig. 4, a second seal groove 48 is provided on the bottom side edge of the case 1, a third seal ring 49 shown in fig. 13 is provided in the second seal groove 48, and the space between the conductive lath heat dissipation plate 6 and the case 1 is sealed by the third seal ring 49.
Example 2:
Fig. 14 shows a switch control box.
As shown in fig. 14, compared with embodiment 1, five power distribution interfaces 2 are provided on the casing 1 of the switch control electrical box according to this embodiment, and in this embodiment, the power distribution bin is larger, the power distribution bin occupies the inner volume of the rear side of the whole casing 1, eight pieces of electric output copper bars 44 are respectively provided on two sides of the electric input terminal 431 in the notch at the top of the casing 1, a column for wiring (the columns on each copper bar are not shown in the figure) is provided on each electric output copper bar 44, wherein two pieces of electric output copper bars are connected in parallel through parallel copper bars 445 on the right side of the electric input terminal 431, so that the two electric output copper bars can output larger current, and other electric output copper bars can also be connected in parallel. By providing a plurality of electrical output copper bars 44, the electrical demands of more high power loads can be met.
Example 3:
The power distribution method of the switch control electric box in embodiment 1 specifically includes:
(1) And the MOS tubes are intensively powered by the conductive strips embedded on the circuit board. Therefore, the electric appliance box is small in size, convenient to concentrate on heat dissipation and beneficial to controlling the heating of the electric appliance box.
(2) After the electric input copper bar is connected with a power supply, a part of electric output pins can directly output current, and a part of electric output pins can be electrified or powered off after a control signal is obtained through the control pins. By the design mode, the switch control electrical box can meet the use requirements of different loads, and in specific work, the MOS tube is controlled by sending signals to the processor.
(3) When the current in a certain MOS tube exceeds the limit, the feedback terminal of the MOS tube sends a signal to the processor, and the processor sends the signal to control the MOS tube to be disconnected. Through managing and controlling the MOS tube, the overload operation of the MOS tube is prevented, the damage of the MOS tube is prevented, and the service life of the switch control electric box is prolonged.
While the present invention has been described with reference to the drawings and the embodiments, it will be understood by those skilled in the art that various changes may be made in the specific parameters of the embodiments described above or equivalents may be substituted for the related components, structures and materials without departing from the technical concept of the present invention, so as to form a plurality of specific embodiments, which are common variations of the present invention and will not be described in detail herein.
Claims (6)
1. The switch control electrical box comprises a shell, wherein a circuit board is arranged in the shell, and is characterized in that a conductive lath for centralized power supply is embedded in the circuit board, a conductive lath radiating plate is arranged on one side of the shell, an electric input copper bar electrically connected to the conductive lath is arranged in the shell, a plurality of MOS (metal oxide semiconductor) tubes are arranged on the circuit board, the input ends of the MOS tubes are electrically connected to the conductive lath, a power distribution interface is arranged on the shell, a plurality of electric output pins are arranged in the power distribution interface and are correspondingly and electrically connected to the output ends of the MOS tubes, a plurality of control pins are also arranged in the power distribution interface, a processor is arranged on the circuit board, the control pins are correspondingly and electrically connected to the processor, and signals corresponding to the processor are connected to the control ends of the MOS tubes;
the conductive lath is provided with electric connection points corresponding to the MOS tubes;
The circuit board comprises an upper circuit board and a lower circuit board, the lower ends of the control pins are welded on the upper circuit board, the lower ends of the electric output pins are welded on the lower circuit board, through holes corresponding to the electric output pins are formed in the upper circuit board, and step parts for supporting the upper circuit board are formed in the middle of the electric output pins;
the conducting strip is embedded in the lower circuit board, each MOS tube is arranged on the lower circuit board, the processor is arranged on the upper circuit board, a communication plug is arranged at the bottom of the upper circuit board, a communication socket is correspondingly arranged on the upper surface of the lower circuit board, and the communication plug is inserted into the communication socket;
Part of electric output pins in the power distribution interface are electrically connected to corresponding MOS tubes through circuits in the lower circuit board, and the other electric output pins are electrically connected to the corresponding MOS tubes through bridging wires arranged on the lower circuit board;
The bottom surface pad of the electric conduction plate strip is provided with a heat conduction insulating gasket, the heat dissipation plate of the electric conduction plate strip is provided with convex ribs corresponding to the electric conduction plate strip, and the electric conduction plate strip is arranged on the convex ribs through the heat conduction insulating gasket.
2. The switch control electrical box according to claim 1, wherein a power distribution bin is arranged between the upper circuit board and the lower circuit board, a first notch corresponding to the power distribution bin is arranged on the upper circuit board, a second notch is correspondingly arranged on the shell, a top cover corresponding to the second notch is arranged on the shell, and the electric input copper bar is arranged in the power distribution bin.
3. The switch control electrical box according to claim 2, wherein an electrical output copper bar is further arranged in the distribution bin, parallel MOS tubes are arranged on the circuit board, and the electrical output copper bar is electrically connected to the output ends of the parallel MOS tubes.
4. The switch-controlled electrical box of claim 1, wherein the MOS transistor has a feedback terminal that is connected to the processor in response to a signal.
5. The switch-controlled appliance box of claim 1, wherein the processor and the power distribution interface are each provided in plurality.
6. The power distribution method of the switch control box according to any one of claims 1 to 5, comprising:
The MOS tubes are intensively supplied with power through conductive strips embedded on the circuit board;
after the electric input copper bar is powered on, one part of the electric output pins can directly output current, and the other part of the electric output pins can be electrified or powered off after the control pins obtain control signals;
when the current in a certain MOS tube exceeds the limit, a feedback terminal of the MOS tube sends a signal to the processor, and the processor sends the signal to control the MOS tube to be disconnected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319093.4A CN112864821B (en) | 2021-03-25 | 2021-03-25 | Switch control electrical box and power distribution method |
| PCT/CN2021/090560 WO2022198746A1 (en) | 2021-03-25 | 2021-04-28 | Switch control electrical box and power distribution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319093.4A CN112864821B (en) | 2021-03-25 | 2021-03-25 | Switch control electrical box and power distribution method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112864821A CN112864821A (en) | 2021-05-28 |
| CN112864821B true CN112864821B (en) | 2025-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110319093.4A Active CN112864821B (en) | 2021-03-25 | 2021-03-25 | Switch control electrical box and power distribution method |
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| Country | Link |
|---|---|
| CN (1) | CN112864821B (en) |
| WO (1) | WO2022198746A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102774337A (en) * | 2012-07-21 | 2012-11-14 | 上海沪工汽车电器有限公司 | Vehicular integrated power distribution bus central electrical box |
| CN109484331A (en) * | 2018-12-17 | 2019-03-19 | 奇瑞汽车股份有限公司 | Intelligent electrical box for automobile cockpit |
| CN214411782U (en) * | 2021-03-25 | 2021-10-15 | 新乡市光明电器有限公司 | Switch control electric appliance box |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022198746A1 (en) | 2022-09-29 |
| CN112864821A (en) | 2021-05-28 |
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