CN214411782U - Switch control electric appliance box - Google Patents
Switch control electric appliance box Download PDFInfo
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- CN214411782U CN214411782U CN202120606895.9U CN202120606895U CN214411782U CN 214411782 U CN214411782 U CN 214411782U CN 202120606895 U CN202120606895 U CN 202120606895U CN 214411782 U CN214411782 U CN 214411782U
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- circuit board
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- switch
- conductive strip
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Abstract
The utility model discloses an on-off control electrical apparatus box, this on-off control electrical apparatus box includes the casing, inlay on the circuit board in the casing and be equipped with the conducting strip that is used for concentrating the power supply for each MOS pipe, consequently, the inside MOS pipe that each as the switch of this on-off control electrical apparatus box can be compacter installs on the circuit board for when this on-off control electrical apparatus box has multiple switch control circuit, and small in size is very small and exquisite, when using on consumer such as vehicle, it is little to occupy space, it is more nimble to install. Because the utility model provides an electrical apparatus box is through the conductive strip centralized power supply, consequently, this on-off control electrical apparatus box generate heat mainly concentrate on the conductive strip, through set up the conductive strip heating panel in casing one side, can in time remove most heat that this on-off control electrical apparatus box produced to the conductive strip is protruding muscle frame on the conductive strip heating panel, is favorable to the heat dissipation more, prevents to break down because of overheated in the use, increase of service life.
Description
Technical Field
The utility model relates to an electrical apparatus box technical field, concretely relates to on-off control electrical apparatus box.
Background
For an electrified product equipped with a plurality of electric devices, such as a vehicle, generally, an electric box capable of controlling on-off of multiple paths is required to be connected between a storage battery and each electric device so as to supply power to each electric device or timely control circuit disconnection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an on-off control electrical apparatus box solves the on-off control box among the prior art bulky, the heat dissipation is poor, the inconvenient technical problem of maintenance.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the switch control electrical appliance box comprises a shell, wherein a circuit board is arranged in the shell, conductive laths for centralized power supply are embedded on the circuit board, a conductive lath heat dissipation plate is arranged on one side of the shell, and an electric input copper bar electrically connected to the conductive laths is arranged in the shell; the circuit board is provided with a plurality of MOS tubes, the input ends of the MOS tubes are electrically connected to the conductive laths, the shell is provided with a power distribution interface, a plurality of electric output pins are arranged in the power distribution interface, and the electric output pins are correspondingly and electrically connected to the output ends of the MOS tubes; still be equipped with a plurality of control stitches in the distribution interface be equipped with the treater on the circuit board, the control stitch corresponds the electricity and connects to the treater, just the treater corresponds signal connection to the control end of MOS pipe.
Preferably, the circuit board includes upper circuit board and lower floor's circuit board, the lower extreme welding of control stitch is in on the upper circuit board, the lower extreme welding of electricity output stitch is in on the circuit board of lower floor, be equipped with on the upper circuit board corresponding to the via hole of electricity output stitch, electricity output stitch middle part is equipped with and is used for supporting the step portion of upper circuit board.
Preferably, the conductive strip is embedded in the lower circuit board, each MOS transistor 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, a communication socket is correspondingly arranged on the upper surface of the lower circuit board, and the communication plug is plugged in the communication socket.
Preferably, some of the electrical output pins in the power distribution interface are electrically connected to the corresponding MOS transistors through circuits in the lower circuit board, and the other electrical output pins are electrically connected to the corresponding MOS transistors through jumper wires disposed on the lower circuit board.
Preferably, a power distribution bin is arranged between the upper layer circuit board and the lower layer circuit board, the upper layer circuit board is provided with a first notch corresponding to the power distribution bin, the shell is correspondingly provided with a second notch, and the shell is provided with a top cover corresponding to the second notch; the electric input copper bar is arranged in the power distribution bin.
Preferably, an electric output copper bar is further arranged in the power distribution bin, a parallel MOS tube is arranged on the circuit board, and the electric output copper bar is electrically connected to the output end of the parallel MOS tube.
Preferably, the bottom surface of the conductive lath is padded with a heat-conducting insulating gasket, the heat dissipation plate of the conductive lath is provided with a convex rib corresponding to the conductive lath, and the conductive lath is padded on the convex rib through the heat-conducting insulating gasket.
Preferably, the MOS transistor has a feedback terminal connected to the processor in response to a signal.
Preferably, the number of the processors and the power distribution interface is multiple.
The utility model discloses a main beneficial technological effect lies in:
1. the utility model provides an on-off control electrical apparatus box inlays on the circuit board in the casing and is equipped with the conducting strip that is used for concentrating the power supply for each MOS pipe, consequently, the inside MOS pipe that each as the switch of this on-off control electrical apparatus box can be compacter installs on the circuit board, when making this on-off control electrical apparatus box have multiple switch control circuit, small in size ten minutes, when using on consumer such as vehicle, it is little to occupy space, the installation is more nimble, compare with other electrical apparatus boxes, the competitiveness has been improved greatly.
2. Because the utility model discloses on-off control electrical apparatus box is through the conductive strip centralized power supply, consequently, this on-off control electrical apparatus box generate heat mainly concentrate on the conductive strip, through set up the conductive strip heating panel in casing one side, can in time remove most heat that this on-off control electrical apparatus box produced to the conductive strip is protruding muscle frame on the conductive strip heating panel, is favorable to the heat dissipation more, prevents to break down because of overheated in the use, ensures to have longer life.
3. Be equipped with the step portion that is used for supporting upper circuit board in electric output stitch middle part, and the via hole correspondence on the upper circuit board passes electric output stitch, and upper circuit board lower surface supports on step portion, and like this, upper circuit board and electric output stitch can be unpack apart to communication joint between upper circuit board and the lower floor's circuit board also can part, consequently, the later stage can be unpack apart upper circuit board and lower floor's circuit board, conveniently carries out quality control, maintenance to the circuit board of lower floor.
4. Through set up parallelly connected MOS pipe on the circuit board to set up the electric output copper bar of being connected with parallelly connected MOS union coupling electricity, thereby can be for high-power load power supply, increased this switch control electrical apparatus box's application scope.
5. One part of MOS tubes in the switch control electrical box can be directly conducted, and the other part of MOS tubes is controlled to be switched on and off through a control signal, so that the use requirements of different loads in electrical equipment such as automobiles and the like can be met.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the switch control electrical box of the present invention.
Fig. 2 is a schematic structural diagram of a double-layer circuit board in an embodiment of the switch control electrical box of the present invention.
Fig. 3 is a schematic structural diagram of a lower circuit board in an embodiment of the switch control electrical box of the present invention.
Fig. 4 is a schematic view of an internal structure of an embodiment of the switch control electrical box of the present invention.
Fig. 5 is a schematic structural diagram of the switch control electrical 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 bin in an embodiment of the switch control electrical box of the present invention.
Fig. 7 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.
Fig. 8 is a schematic structural diagram of a sealing ring in a power distribution bin in an embodiment of the switch control electrical 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 an electrical output pin and a control pin in an embodiment of the switch control electrical box of the present invention.
Fig. 11 is a schematic bottom structure diagram of an embodiment of the switch control electrical box of the present invention.
Fig. 12 is a schematic diagram illustrating a positional relationship between the conductive strip and the heat dissipating plate of the conductive strip according to an embodiment of the switch control box of the present invention.
Fig. 13 is a schematic structural diagram of a third sealing ring in an embodiment of the switch control electrical box of the present invention.
Fig. 14 is a schematic perspective view of another embodiment of the switch control electrical box of the present invention.
In the above figures, the reference numerals are to indicate: the housing 1, the second notch 11, the top cover 12, the hinge seat 121, the buckle 122, the wiring hole 123, the power distribution interface 2, the electrical 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 electrical connection point 421, the electrical input copper bar 43, the electrical input terminal 431, the first sub-copper bar 432, the first sub-terminal 433, the first pin 434, the electrical output copper bar 44, the electrical output terminal 441, the second sub-copper bar 442, the second sub-terminal 443, the second pin 444, the parallel copper bar 445, the parallel MOS tube 45, the communication connector 46, the communication plug 461, the communication socket 462, the jumper conductor 47, the second sealing groove 48, the third sealing ring 49, the power distribution compartment 5, the ear seat 51, the partition plate 52, the notch 53, the insertion port 54, the first sealing ring 55, the second sealing ring 56, the electrical distribution connector, the electrical output pin 43, the electrical output pin 431, the electrical output pin, the electrical connector, a first sealing groove 57, a conductive lath heat-dissipating plate 6, and a rib 61.
Detailed Description
The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
a switch control box, please refer to fig. 1 to 13.
As shown in figure 1, the switch control electric appliance box comprises a shell 1, wherein five power distribution interfaces 2 with the code A are arranged on the shell 11 、B1、 C1 、D1 、E1As shown in FIG. 2As shown, a circuit board is disposed in the housing 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 transistors 41 are disposed on the lower layer circuit board 4, each group is divided into two rows, each row has 5 MOS transistors, and these MOS transistors are used as switches, and each group of MOS transistors corresponds to one power distribution interface.
As shown in fig. 4, a conductive strip 42 for concentrated power supply is embedded in the lower circuit board 4, the conductive strip 42 is provided with an electrical connection point 421 corresponding to each MOS transistor, and an electrical input terminal of each MOS transistor corresponds to the electrical connection point 421 electrically connected to the conductive strip 42, as shown in fig. 2, the housing 1 is further provided with an electrical input copper bar 43 electrically connected to the conductive strip 42, and the electrical input copper bar 43 is provided with an electrical input terminal 431 for power connection, so as to supply power to each MOS transistor.
As shown in fig. 2, a distribution box 5 is provided between the upper layer circuit board 3 and the lower layer circuit board 4, and as shown in fig. 6, ear seats 51 are provided on both sides of the distribution box 5, and the ear seats 51 are interposed between the upper layer circuit board 3 and the lower layer circuit board 4 and fixed by screws. The inside upper and lower link up in distribution storehouse 5, electricity input copper bar 43 sets up in distribution storehouse 5, it still is equipped with the electricity output copper bar 44 that is used for leading to the heavy current respectively to lie in electricity input copper bar 43 both sides in distribution storehouse 5, be equipped with electricity output terminal 441 on electricity output copper bar 44, as shown in fig. 3 again, be equipped with parallelly connected MOS pipe 45 on lower floor's circuit board 4, parallelly connected MOS pipe 45 includes two MOS pipes that connect in parallel mutually, the output terminal of parallelly connected MOS pipe 45 is connected to electricity output copper bar 44 electricity, like this, electricity output copper bar 44 can be for the great load power supply of power.
As shown in fig. 6, a partition plate 52 is arranged inside the power distribution bin 5, so as to separate 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 socket 54 are arranged on the side surface of the power distribution bin 5 and are used for positioning the electric input copper bar 43 and the electric output copper bar 44.
As shown in fig. 7, the first sub copper bar 432 is provided on the electrical input copper bar 43, the first sub connection terminal 433 is provided on the first sub copper bar 432, the first pin 434 for welding on the lower circuit board 4 is provided at the bottom of the first sub copper bar 432, when the electrical input copper bar 43 is disposed in the power distribution bin 5, the electrical input copper bar 43 is electrically connected to the first sub connection terminal 433, similarly, the electrical output copper bar 44 is provided with the second sub copper bar 442, the second sub connection terminal 443 is provided on the second sub copper bar 442, the second pin 444 for welding on the lower circuit board 4 is provided at the bottom of the second sub copper bar 442, and when the electrical output copper bar 44 is disposed in the power distribution bin 5, the electrical output copper bar 44 is electrically connected to the second sub connection terminal 443. Through set up first sub copper bar 432 to electric input copper bar 43, electric output copper bar 44 sets up second sub copper bar 442, makes things convenient for the assembly and disassemble the maintenance of each copper bar to ensure good electric connection.
As shown in fig. 2, the upper circuit board 3 is provided with a first notch 31 corresponding to the power distribution bin 5, as shown in fig. 5, the housing 1 is correspondingly provided with a second notch 11, therefore, the upper portion of the power distribution bin 5 can pass through the first notch 31 and extend to the second notch 11, so that the electric input copper bar 43 and the electric output copper bar 44 can be conveniently wired with the outside. As shown in fig. 1, a top cover 12 corresponding to the second notch 11 is disposed on the housing 1, as shown in fig. 6, a first sealing groove 57 is disposed on the upper edge of the power distribution bin 5, and as shown in fig. 8, a first sealing ring 55 corresponding to the first sealing groove 57 is disposed, when the top cover 12 covers 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 insertion ports 54 are disposed, so that the electrical input copper bar 43 and the electrical output copper bar 44 are wrapped and sealed at the insertion ports 54.
As shown in fig. 5, a hinge seat 121 is disposed on the top of the housing 1, so that the rear portion of the top cover 12 is hinged to the housing 1, and as shown in fig. 1, the front portion of the top cover 12 is connected to the housing 1 by a buckle 122, and three wiring holes 123 are disposed on the front side of the top cover 12, so that the electrical input copper bar 43 and the electrical output copper bar 44 are wired.
In this embodiment, after the electrical input copper bar 43 is powered on, one part of MOS transistors is directly turned on, and the other part of MOS transistors needs to be turned on or off by a control signal, which is because, taking an automobile as an example, part of electrical devices in the automobile need to be powered all the time, and one part of electrical devices needs to be turned on or turned off by an instruction, therefore, the switch control electrical box of this embodiment needs to have corresponding functions, for this reason, as shown in fig. 1, fifteen columnar pins are arranged in each power distribution interface 2, including ten electrical output pins and five control pins, the electrical output pins are used for powering an electrical load, and the control pins are used for inputting a control signal to control the corresponding MOS transistors. Each electric output pin is correspondingly connected to an electric output terminal of an MOS (metal oxide semiconductor) tube, and if the MOS tube connected with a certain electric output pin is conducted, the electric output pin can supply power to a load electrically connected with the electric output pin. One of the ten electric output pins is thicker, and is suitable for supplying power to a load with larger power.
As shown in fig. 3, five electrical output pins in the power distribution interface 2 are electrically connected to corresponding MOS transistors through circuits in the lower circuit board 4, and the rest five electrical output pins are electrically connected to corresponding MOS transistors through the jumper wires 47 disposed on the lower circuit board 4, because the electrical output pins in the same power distribution interface 2 are relatively concentrated and the corresponding MOS transistors are relatively dispersed, through the jumper wires 47, more MOS transistors can be disposed on the circuit board with a smaller area, and because the used MOS transistors are themselves smaller, the size of the switch control electrical box is small, and the switch control circuit with more circuits can be provided.
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 attached to the bottom surface of the upper circuit board 3 and a communication socket 462 correspondingly attached to the upper surface of the lower circuit board 4, and the communication plug 461 is plugged into the communication socket 462, so that the upper and lower circuit boards can communicate with each other.
Three processors (not shown in fig. 2) are arranged on the upper circuit board 3, the processors are single-chip microcomputers, the lower ends of the control pins are welded on the upper circuit board 3, the control pins are correspondingly and electrically connected to the 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 transmit the signal to the control terminals of the corresponding MOS tubes on the lower circuit board 4 through the communication connectors 46 to control the MOS tube switches.
In addition, each MOS tube is provided with a feedback terminal, the feedback terminal is connected to the processor corresponding to a signal, when the current in a certain MOS tube exceeds the limit, the feedback terminal of the MOS tube sends the signal to the processor, and the processor sends the signal to control the MOS tube to be disconnected in time so as to form protection.
In this embodiment, ten electric output pins in the power distribution interface 2 are longer pins, five control pins are shorter pins, therefore, the lower end of the electric output pin can be welded on the lower circuit board 4, and the upper circuit board 3 is provided with a via hole corresponding to the electric output pin, and as shown in fig. 10, the middle part of the electric output pin 21 is provided with a step part 211 for supporting the upper circuit board 3, the via hole on the upper circuit board 3 correspondingly passes through the electric output pin 21, the lower surface of the upper circuit board 3 is supported on the step part 211, thus, the upper circuit board 3 is not fixedly connected with the electric output pin 21, and the communication plug 461 and the communication socket 462 in the communication connector 44 can also be separated, thereby the later stage can separate the upper circuit board 3 from the lower circuit board 4, and the quality inspection and maintenance of the circuit board are facilitated.
As shown in fig. 10, the positioning step portion 212 is provided at the bottom of the electric output pin 21, so that when the electric output pin 21 is soldered to the lower circuit board 4, the soldering position of the electric output pin 21 can be positioned, and similarly, the positioning step portion 221 is also provided at the bottom of the control pin 22, so that when the control pin 22 is soldered to the upper circuit board 3, the soldering position of the control pin 22 can be positioned, so that the top flush of each electric output pin 21 and each control pin 22 of the power distribution interface 2 can be ensured to be positioned on the same horizontal plane, and when the power distribution interface 2 is used in a later stage, the power distribution interface of the power consumption equipment is well contacted.
As shown in fig. 11, the bottom side of the housing 1 is provided with the heat dissipating plate 6 of the conductive strip, the heat dissipating plate 6 of the conductive strip is made of aluminum plate, which has a good heat dissipating function, as shown in fig. 12, the heat dissipating plate 6 of the conductive strip is provided with a protruding rib 61 corresponding to the conductive strip 42, and the bottom surface of the conductive strip 42 is padded with a heat conductive insulating pad, so that the conductive strip 42 is padded on the protruding rib 61 through the heat conductive insulating pad, and thus, the conductive strip 42 is erected on the heat dissipating plate 6 of the conductive strip, which is more beneficial to heat dissipation. In the embodiment, the conductive lath 42 for centralized power supply is arranged, and the special conductive lath heat dissipation plate 6 is specially designed, so that the internal components of the switch control electrical box are compact, and meanwhile, good heat dissipation capability 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 at the bottom 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 plate strip heat sink 6 and the case 1 is sealed by the third seal ring 49.
Example 2:
a switch control box, please refer to fig. 14.
As shown in fig. 14, compared with embodiment 1, the switch control electrical box of this embodiment is provided with five power distribution interfaces 2 on the casing 1, and the power distribution bin of this embodiment is larger in volume, and the power distribution bin occupies the internal volume of the whole rear side of the casing 1, in the gap at the top of the casing 1, there are eight electrical output copper bars 44 respectively arranged on both sides of the electrical input terminal 431, and each electrical output copper bar 44 is provided with a post for wiring (the post on each copper bar is not fully shown in the drawing), wherein, there are two electrical output copper bars connected in parallel through the parallel copper bar 445 on the right side of the electrical input terminal 431, so that these two electrical output copper bars can output larger current, and other electrical output copper bars can also be connected in parallel. By arranging the plurality of electric output copper bars 44, the power consumption requirement of more high-power loads can be met.
The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed or equivalent substitutions can be made on related components, structures and materials without departing from the technical concept of the present invention, thereby forming a plurality of specific embodiments, which are common variations of the present invention and will not be described in detail herein.
Claims (9)
1. A switch control electrical appliance box comprises a shell, wherein a circuit board is arranged in the shell, and the switch control electrical appliance box is characterized in that a conductive lath for centralized power supply is embedded on the circuit board, a conductive lath heat dissipation plate is arranged on one side of the shell, and an electric input copper bar electrically connected to the conductive lath is arranged in the shell; the circuit board is provided with a plurality of MOS tubes, the input ends of the MOS tubes are electrically connected to the conductive laths, the shell is provided with a power distribution interface, a plurality of electric output pins are arranged in the power distribution interface, and the electric output pins are correspondingly and electrically connected to the output ends of the MOS tubes; still be equipped with a plurality of control stitches in the distribution interface be equipped with the treater on the circuit board, the control stitch corresponds the electricity and connects to the treater, just the treater corresponds signal connection to the control end of MOS pipe.
2. The switch-controlled electrical box according to claim 1, wherein 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 electrical output pins are welded on the lower circuit board, the upper circuit board is provided with via holes corresponding to the electrical output pins, and the middle of the electrical output pins is provided with a step part for supporting the upper circuit board.
3. The switch-controlled electrical box according to claim 2, wherein the conductive strip is embedded in the lower circuit board, each MOS transistor is disposed on the lower circuit board, the processor is disposed on the upper circuit board, a communication plug is disposed on a bottom surface of the upper circuit board, a communication socket is correspondingly disposed on an upper surface of the lower circuit board, and the communication plug is plugged into the communication socket.
4. The switch-controlled electrical box of claim 2, wherein some of the electrical output pins in the power distribution interface are electrically connected to corresponding MOS transistors through circuitry within the underlying circuit board, and the remaining electrical output pins are electrically connected to corresponding MOS transistors through jumper wires disposed on the underlying circuit board.
5. The switch-controlled electrical box according to claim 2, wherein a power distribution bin is disposed between the upper circuit board and the lower circuit board, the upper circuit board is provided with a first gap corresponding to the power distribution bin, the housing is correspondingly provided with a second gap, and the housing is provided with a top cover corresponding to the second gap; the electric input copper bar is arranged in the power distribution bin.
6. The switch-controlled electrical box according to claim 5, wherein an electrical output copper bar is further disposed in the power distribution bin, a parallel MOS transistor is disposed on the circuit board, and the electrical output copper bar is electrically connected to an output terminal of the parallel MOS transistor.
7. The switch-controlled electrical box according to claim 1, wherein the bottom surface of the conductive strip is padded with a heat-conducting insulating pad, the heat-dissipating plate of the conductive strip is padded with a rib corresponding to the conductive strip, and the conductive strip is padded on the rib through the heat-conducting insulating pad.
8. The switch-controlled electrical box according to claim 1, characterized in that the MOS tube has a feedback terminal connected to the processor in correspondence of a signal.
9. The switch-controlled electrical box according to claim 1, wherein the processor and the power distribution interface are provided in plurality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120606895.9U CN214411782U (en) | 2021-03-25 | 2021-03-25 | Switch control electric appliance box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120606895.9U CN214411782U (en) | 2021-03-25 | 2021-03-25 | Switch control electric appliance box |
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| Publication Number | Publication Date |
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| CN214411782U true CN214411782U (en) | 2021-10-15 |
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| CN202120606895.9U Active CN214411782U (en) | 2021-03-25 | 2021-03-25 | Switch control electric appliance box |
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| CN (1) | CN214411782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198746A1 (en) * | 2021-03-25 | 2022-09-29 | 新乡市光明电器有限公司 | Switch control electrical box and power distribution method |
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2021
- 2021-03-25 CN CN202120606895.9U patent/CN214411782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198746A1 (en) * | 2021-03-25 | 2022-09-29 | 新乡市光明电器有限公司 | Switch control electrical box and power distribution method |
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