CN213093926U - Charging switching device - Google Patents
Charging switching device Download PDFInfo
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- CN213093926U CN213093926U CN202022076586.3U CN202022076586U CN213093926U CN 213093926 U CN213093926 U CN 213093926U CN 202022076586 U CN202022076586 U CN 202022076586U CN 213093926 U CN213093926 U CN 213093926U
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Abstract
The invention relates to a charging switching device. The charging transfer device includes: the device comprises an alternating current input integrated circuit board connected with an alternating current power supply, two voltage and current conversion modules connected with the alternating current input integrated circuit board, an output integrated circuit board connected with the voltage and current conversion modules, and a shell for packaging the alternating current input integrated circuit board, the voltage and current conversion modules and the output integrated circuit board; the alternating current input integrated circuit board comprises two alternating current power supply output ports, each alternating current power supply output port is connected with the voltage-current conversion module, and the output integrated circuit board comprises a direct current output port; the alternating current input integrated circuit board is connected with the voltage and current conversion module, and the voltage and current conversion module is connected with the output integrated circuit board through the plug-in sockets. The cost of the charging switching device is reduced through the scheme.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a charging switching device.
Background
The existing 24V charger converts AC-220V/16A AC input into DC-24V/120A DC output through an AC-to-DC conversion device, wherein the input and the output of the 24V charger are connected by 25 electric wire harnesses, and 4 copper bars are arranged for charging 24V lithium batteries. The 24V charger adopts a mode of a bus bar copper bar and an electric wire harness as an input end and an output end, and 10 wires and 25mm wires are used in a large number in the design and use process2The power lines, 15 22AWG signal lines and 4 copper bars increase the layout design of sheet metal parts, so that the charger is huge and heavy in size and inconvenient to use by customers; in the aspect of safety, in the long-term use process, the wire harness outer insulating layer is aged and falls off, so that short circuit is easily caused, potential safety hazards are caused, equipment fails when the wire harness outer insulating layer is small, and personal accidental injury is caused when the wire harness outer insulating layer is large; in the aspect of production and assembly, the risk of installation errors and installation time are increased, the wiring harnesses are very dense in the installation process, installation errors and neglected installation are easily caused in the installation process, meanwhile, a large amount of time is spent on installation when more wiring harnesses are needed, and the production efficiency of products is not high. For the above problems, the prior art bundles the bundle by a wire harness and winds the bundle by using a winding pipe, or hides the bundle by using a wire slot, or bundles the bundle by using a ribbon, and the bundling principle is strong and weak current separation.
However, although the problem that the wiring harness is easily unclear when the wiring harness is too many can be solved in the prior art, the condition that the insulating layer of the wiring harness is aged or falls off cannot be prevented, and the problems of wrong installation and neglected installation of the installation wiring cannot be actually solved.
Disclosure of Invention
In view of the above, it is desirable to provide a charging adapter device.
A charge relay device comprising: the device comprises an alternating current input integrated circuit board connected with an alternating current power supply, two voltage and current conversion modules connected with the alternating current input integrated circuit board, an output integrated circuit board connected with the voltage and current conversion modules, and a shell for packaging the alternating current input integrated circuit board, the voltage and current conversion modules and the output integrated circuit board; the alternating current input integrated circuit board comprises two alternating current power supply output ports, each alternating current power supply output port is connected with the voltage-current conversion module, and the output integrated circuit board comprises a direct current output port; the alternating current input integrated circuit board is connected with the voltage and current conversion module, and the voltage and current conversion module is connected with the output integrated circuit board through the plug-in sockets.
In one embodiment, the ac input ic board adopts a wiring manner of minimum theoretical width of copper foil and isolation in a slot of a PCB: the PCB is a double-layer board, a live wire is distributed on the top layer of the PCB, and a zero line is distributed on the bottom layer of the PCB.
In one embodiment, the voltage-current conversion module is an MR241800 module, and the MR241800 module includes a power input connection port, an RS485 communication port, and a low-voltage dc output port; and the power input connecting port is connected with the alternating current power output port.
In one embodiment, the output integrated circuit board further includes an RS485 communication port and a low-voltage dc input port, the RS485 communication port of the output integrated circuit board is connected to the RS485 communication port of the MR241800 module, and the low-voltage dc input port is connected to the low-voltage dc output port.
In one embodiment, the output integrated circuit board is made of FR-4 material, a copper foil is adopted in a PCB wiring mode, and the thickness of the copper foil is 2 oZ.
In one embodiment, the copper foil is a busbar, and the two end points of the busbar are covered with insulating and reinforcing materials.
In one embodiment, the output integrated circuit board further comprises a CAN communication port.
In one embodiment, the output integrated circuit board further comprises a thermal dissipating via.
In one embodiment, the alternating current power supply is a 220V/16A alternating current power supply, and the voltage-current conversion module outputs 24V/120A direct current.
The charging switching device in the embodiment wholly adopts a circuit board integrated connection mode, so that the space occupied by a connection wire harness is saved, the size of the charging switching device is reduced, the plug-in seat is connected in a plug-in mode, the plug-in unit adopts a method for fixing and positioning pins, if the plug-in unit is inserted in a wrong mode, the plug-in unit cannot be connected to a module, and the time for aligning and installing wire harness marks is saved, so that the problems of installation errors and overlong installation time are solved, and the overall installation efficiency of the charging switching device is improved.
Drawings
Fig. 1 is a schematic view illustrating an installation structure of a charging adaptor device according to an embodiment;
FIG. 2 is a schematic circuit diagram of an embodiment of a charging adapter;
fig. 3 is a schematic structural diagram of an output integrated circuit board in one embodiment.
Detailed Description
In one embodiment, as shown in fig. 1, there is provided a charge transfer device including: an ac input integrated circuit board 100 connected to an ac power source, two voltage-current conversion modules 200 connected to the ac input integrated circuit board 100, an output integrated circuit board 300 connected to the voltage-current conversion modules 200, and a case 600 enclosing the ac input integrated circuit board 100, the voltage-current conversion modules 200, and the output integrated circuit board 300; the ac input integrated circuit board 100 includes two ac power output ports, each of the ac power output ports is connected to the voltage-current conversion module 200, and the output integrated circuit board 300 includes a dc output port 500; the ac input ic board 100 and the voltage-current conversion module 200, and the voltage-current conversion module 200 and the output ic board 300 are connected by sockets.
The ac power source may be a commercial power source, the circuit flow input integrated circuit board 100 is connected to the commercial power source and outputs the commercial power in two paths, as shown in fig. 2, the circuit flow input integrated circuit board 100 divides the commercial power into two paths to output the commercial power from two ac power source output ports J2 and J3, and the ac power source output ports include a live wire interface N, a zero wire interface L, and a ground interface GND. For example, as shown in fig. 2, the power input interface J1 of the circuit flow input integrated circuit board 100 includes a live wire interface N, a zero line interface L, and a ground interface GND, and the live wire interface N, the zero line interface L, and the ground interface GND are connected to the input cable through the copper nose.
The voltage-current conversion module is configured to perform voltage-current conversion on the input electricity, for example, the voltage input to the voltage-current conversion module is 220V, the current input to the voltage-current conversion module is 16A, the voltage output to the voltage-current conversion module is 24V, and the current output to the voltage-current conversion module is 120A.
The output integrated circuit board 300 is connected to the voltage-current conversion module and then outputs the voltage-current conversion module to a device to be charged, for example, the device to be charged is a lithium battery. The dc output port 500 of the output ic board 300 and the dc output cable are mounted by a copper nose, and are connected to the charged device through the copper nose.
The housing 600 may be made of an insulating material, and a heat dissipation hole is formed in the housing to dissipate heat from the internal circuit.
According to the charging switching device, the space occupied by the connecting wire harness is saved due to the integrated connection mode of the circuit board, the size of the charging switching device is reduced, the plug-in seat is connected in a plug-in mode, the plug-in unit adopts the method of fixing the positioning pin, if the plug-in unit is inserted in a wrong mode, the plug-in unit cannot be connected to a module, the time for aligning and installing the wiring harness mark is saved, the problems of installation errors and overlong installation time are solved, and the overall installation efficiency of the charging switching device is improved.
In one embodiment, the ac input ic board 100 adopts a wiring manner of minimum theoretical width of copper foil and isolation in a slot of a PCB: the PCB is a double-layer board, a live wire is distributed on the top layer of the PCB, and a zero line is distributed on the bottom layer of the PCB. In the embodiment, the minimum theoretical width of the copper foil and the wiring mode of slotting and isolating on the PCB are adopted, the maximum electric creepage distance can be reached, and the safety and reliability of the circuit board are ensured.
In one embodiment, as shown in fig. 2, the voltage-current conversion module 200 is an MR241800 module, and the MR241800 module includes a power input connection port, an RS485 communication port, and a low-voltage dc output port; and the power input connecting port is connected with the alternating current power output port. For example, as shown in fig. 2, the power input connection port of the MR241800 module includes a live wire interface N, a zero line interface L, and a ground interface GND, which are correspondingly connected to the live wire interface N, the zero line interface L, and the ground interface GND of the ac power output port, and are used for connecting electricity, the RS485 communication port includes two positive and negative power output ends and two positive and negative 485 communication interfaces, the low-voltage dc output port is a converted dc output port, and the low-voltage dc output port is used for outputting low voltage to a load.
The voltage-current conversion module 200 further includes a heat dissipation hole 201, and the heat dissipation hole 201 is used for dissipating heat of the voltage-current conversion module 200.
In one embodiment, as shown in fig. 2, the output ic 300 further includes an RS485 communication port and a low voltage dc input port, the RS485 communication port of the output ic is connected to the RS485 communication port of the MR241800 module, and the low voltage dc input port is connected to the low voltage dc output port.
In one embodiment, the output ic board 300 is made of FR-4 material, and a copper foil is used for wiring on a PCB, and the thickness of the copper foil is 2 oZ. Where oZ is english units of measure, known in chinese as ounces, 2oZ equals 70 microns.
As shown in fig. 3, the copper foil is a busbar, and the two ends of the busbar are covered with an insulating reinforcing material. The main function of the output integrated circuit board is integrated wiring harness and passes through large current, a combination mode of a confluence copper bar and a PCB is adopted, the confluence copper bar is welded on the PCB according to a designed model (the model is a tinned red copper bar with the size of 7: 149: 1mm, and the condition of insufficient soldering can be greatly reduced during welding due to tinning), reflow soldering is adopted, and insulation reinforcing materials are added at the two end points of the confluence copper bar, so that the insufficient soldering of the copper bar is prevented, the condition of falling is caused due to the defects of aging of devices and the like for a long time, and the safety and reliability are ensured. CAN signals, balanced current lines and an external power supply port are integrated on the circuit board, a large number of heat dissipation modes are used in the design, via holes are added, and windowing and tin adding are carried out in a special area to increase the overcurrent capacity and the temperature rise. Experiments prove that under the condition that the maximum continuous current is 120A in practical tests, the maximum temperature rise is 32 ℃, the temperature rise of a PCB is only 10 ℃, and the temperature rise reaches IEC60065 safety standard < +85 ℃.
In one embodiment, the output integrated circuit board 300 further includes a CAN communication port J6. The CAN communication port J6 comprises a positive and negative 485 interface, a 5V voltage interface, a ground interface, a positive and negative power supply interface and a high and low level CAN interface. In this embodiment, the control of the output ic board 300 by the external circuit CAN be realized through the CAN communication port J6.
In one embodiment, the output integrated circuit board 300 further includes thermal dissipating vias 307. In this embodiment, the heat dissipation via 307 can ensure that the output integrated circuit board 300 can dissipate heat rapidly under the condition of high current, thereby ensuring the safety of the circuit board.
In one embodiment, the alternating current power supply is a 220V/16A alternating current power supply, and the voltage-current conversion module outputs 24V/120A direct current.
In a specific embodiment, as shown in fig. 3, the bus bar 304 of the output ic 300 is soldered on the PCB 308; the low-voltage direct- current input ports 301 and 302 are connected with the low-voltage direct-current output port of the voltage-current conversion module 200 in an inserting manner; the CAN communication port J6303 is a signal line output end and CAN be used for collecting the power supply condition of the output integrated circuit board 300; the dc output port 500 includes a positive output interface 306 and a negative initial interface 305; a plurality of thermal dissipating vias 307 are provided in the PCB board 308.
The charging switching device described in the above embodiment connects the ac input ic board, the voltage/current conversion module, and the output ic board in the circuit board integration manner and in the opposite insertion mannerFace, can make things convenient for the installation of each part, on the other hand can save the shared space of interconnecting link, make outside pencil from 25 integrated to the circuit board through this application embodiment scheme, 4 copper bars also become 2 busbar welding on the PCB board to the space that makes preceding needs busbar and pencil to place is whole to be released, has saved 3375cm2The space is arranged, so that the structure is simple, and the product is small and convenient; the output integrated circuit board integrates the bus copper bar, so that the condition that an insulating layer falls off in the long-term use process of the electric wire harness is overcome, and the risk of short circuit of an electric connecting wire in the equipment due to aging is avoided; the output integrated circuit board adopts the means that the upper surface and the lower surface of the output integrated circuit board are coated with copper, the copper is converged through the through holes, the heat dissipation through holes are formed, and the through current capacity is increased by adding soldering tin, so that the condition that the PCB continuously passes 120A large current can be met; the alternating current input integrated circuit board adopts isolation to ensure the safety and reliability of the adapter plate when the alternating current input is met, the positive and negative sides of the L pole and the N pole are wired, the PCB board meets the insulation voltage resistance value, and the design size of the circuit board is reduced; the charging switching device in the embodiment of the application reduces the structure of the sheet metal part and the identification required by the wire harness, and the cost of the device is integrally reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A charge transfer device, comprising: the device comprises an alternating current input integrated circuit board connected with an alternating current power supply, two voltage and current conversion modules connected with the alternating current input integrated circuit board, an output integrated circuit board connected with the voltage and current conversion modules, and a shell for packaging the alternating current input integrated circuit board, the voltage and current conversion modules and the output integrated circuit board;
the alternating current input integrated circuit board comprises two alternating current power supply output ports, each alternating current power supply output port is connected with the voltage-current conversion module, and the output integrated circuit board comprises a direct current output port; the alternating current input integrated circuit board is connected with the voltage and current conversion module, and the voltage and current conversion module is connected with the output integrated circuit board through the plug-in sockets.
2. The charging adapter device of claim 1, wherein the ac input ic board adopts a wiring manner of minimum theoretical width of copper foil and isolation in a slot of a PCB: the PCB is a double-layer board, a live wire is distributed on the top layer of the PCB, and a zero line is distributed on the bottom layer of the PCB.
3. The charging adapter device according to claim 1, wherein the voltage-current conversion module is an MR241800 module, and the MR241800 module includes a power input connection port, an RS485 communication port, and a low-voltage dc output port; and the power input connecting port is connected with the alternating current power output port.
4. The charging adapter device according to claim 3, wherein the output IC board further comprises an RS485 communication port and a low-voltage DC input port, the RS485 communication port of the output IC board is connected with the RS485 communication port of the MR241800 module, and the low-voltage DC input port is connected with the low-voltage DC output port.
5. The charging adapter of claim 1, wherein the output ic is FR-4, and a copper foil is used for the wiring of the PCB, and the thickness of the copper foil is 2 oZ.
6. The charging adapter according to claim 5, wherein the copper foil is a bus bar copper bar, and an insulating reinforcing material is coated at both end points of the bus bar copper bar.
7. The charge-transfer device of claim 1, wherein the output ic board further comprises a CAN communication port.
8. The charging hub device of any one of claims 1-7, wherein the output integrated circuit board further comprises a thermal dissipating via.
9. The charging adapter device of claim 1, wherein the ac power source is a 220V/16A ac power source, and the voltage-to-current conversion module outputs a 24V/120A dc power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076586.3U CN213093926U (en) | 2020-09-21 | 2020-09-21 | Charging switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022076586.3U CN213093926U (en) | 2020-09-21 | 2020-09-21 | Charging switching device |
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| CN213093926U true CN213093926U (en) | 2021-04-30 |
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| CN202022076586.3U Active CN213093926U (en) | 2020-09-21 | 2020-09-21 | Charging switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117816A (en) * | 2020-09-21 | 2020-12-22 | 杭州微慕科技有限公司 | Charging switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117816A (en) * | 2020-09-21 | 2020-12-22 | 杭州微慕科技有限公司 | Charging switching device |
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