Power supply connecting device and roadside system

Abstract

The utility model discloses a power supply connecting device and a roadside system, the power supply connecting device comprises a circuit board, an input end connector and an output end connector, the input end connector and the output end connector are oppositely arranged on the circuit board; the input end connector is provided with an input interface, and the input interface is used for inputting an external voltage; and the output end connector is provided with a plurality of output channels connected with the input interface, and the plurality of output channels are used for respectively supplying power to a plurality of power utilization units in the roadside base station. The power supply connecting device uses the connector to carry out power supply connection, is convenient to manufacture and install a power line harness, improves the assembly efficiency, is more reliable in connection, low in cost, suitable for an integrated roadside base station, can realize the function of single-end input and multi-end output of a direct-current power supply, and is suitable for popularization and application. And the power supply connection of the internal power utilization unit of the integrated roadside base station is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of roadside equipment, and in particular to a power connection device and a roadside system. Background Art

[0002] The integrated roadside base station is a new type of V2X roadside product, which is used to sense and monitor various conditions on the road and realize functions such as communication and data processing. It integrates multiple power-consuming units in an integrated manner, such as cameras, millimeter-wave radars, switch units, etc. Each unit has an independent power input interface, and the power supply voltage required by different units may be different.

[0003] The integrated roadside base station is installed on the roadside pole and powered by the roadside pole box. The roadside pole box can provide DC power of different voltages for the roadside base station at the same time, and is connected to the integrated road base station using a 4-core power supply line, that is, the roadside base station connects the power supply to the inside of the equipment through a 4-core power supply line, which requires the power lines of each unit in the roadside base station to be connected to the corresponding power lines.

[0004] Therefore, this power supply method uses a main power line to power multiple power units at the same time, which requires connecting the power lines of each power unit to this power line by welding or crimping. This wiring method is inconvenient to operate and it is difficult to ensure the reliability of batch operation, which makes the assembly of the integrated roadside base station inconvenient. In addition, the power lines of each power unit are directly connected, which is easy to cause mutual interference. Utility Model Content

[0005] In view of the above problems existing in the prior art, a power connection device and a roadside system of the present invention are proposed to overcome at least one of the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] According to one aspect of the utility model, a power connection device is provided, wherein the power connection device comprises a circuit board, an input-end connector and an output-end connector, wherein the input-end connector and the output-end connector are arranged on the circuit board;

[0008] The input connector is provided with an input interface, and the input interface is used to input an external voltage;

[0009] The output end connector is provided with a plurality of output channels connected with the input interface, and the plurality of output channels are used to supply power to a plurality of power consumption units in the roadside base station respectively.

[0010] Optionally, the input-end connector and the output-end connector each include a plurality of connectors, and the plurality of input-end connectors are respectively used to input different power supply voltages.

[0011] Optionally, the input interfaces on the plurality of input-end connectors are provided with different pin pitches.

[0012] Optionally, the output channels on the plurality of output connectors are provided with different pin pitches and different pin numbers.

[0013] Optionally, the power connection device further includes a circuit protection unit, and the circuit protection unit is arranged between the input-end connector and the output-end connector.

[0014] Optionally, the circuit protection unit comprises a plurality of circuit protection units, and each circuit protection unit is respectively arranged between the input interface and each output channel.

[0015] Optionally, the circuit protection units corresponding to any two adjacent output channels are arranged alternately.

[0016] Optionally, the circuit protection unit includes a fuse holder and a fuse, and the fuse is detachably arranged on the fuse holder.

[0017] Optionally, the circuit board includes a top layer and a bottom layer, the input-end connector and the output-end connector are both arranged in the top layer of the circuit board, and the bottom layer of the circuit board is provided with a power ground.

[0018] According to another aspect of the utility model, a roadside system is provided, wherein the roadside system comprises a power connection device as described in any one of the above items and a roadside base station, and the roadside base station is connected to the power supply system through the power connection device.

[0019] In summary, the beneficial effects of the utility model are:

[0020] The power connection device of the utility model includes a circuit board, an input connector and an output connector, wherein the input connector and the output connector are arranged on the circuit board; an input interface is arranged on the input connector, and the input interface is used to input an external voltage; a plurality of output channels connected to the input interface are arranged on the output connector, and the plurality of output channels are used to supply power to a plurality of power units in a roadside base station respectively. The power connection device of the utility model uses a connector for power connection, which is convenient for the production and installation of power line harnesses, improves assembly efficiency, and has a more reliable connection and low cost. It is suitable for an integrated roadside base station, can realize the function of single-end input and multi-end output of a DC power supply, and is convenient for the power connection of the power units inside the integrated roadside base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural block diagram of a power connection device of the utility model is shown;

[0022] Figure 2 A schematic diagram of the circuit structure of a power connection device of the utility model is shown;

[0023] Figure 3 A structural block diagram of another power connection device of the utility model is shown;

[0024] Figure 4 A schematic diagram of device layout of a circuit board of the utility model is shown. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] Figure 1 A structural block diagram of a power connection device of the utility model is shown, and the power connection device of the utility model includes a circuit board, an input end connector and an output end connector, wherein the input end connector and the output end connector are arranged on the circuit board; an input interface is arranged on the input end connector, and the input interface is used to input an external voltage; a plurality of output channels connected to the input interface are arranged on the output end connector, and the plurality of output channels are used to supply power to a plurality of power consumption units in a roadside base station respectively.

[0030] The power connection device of the utility model is suitable for the power connection of the internal units of an integrated roadside base station. The roadside base station integrates a camera unit, a millimeter-wave radar unit, a switch unit, a computing unit, a cooling fan unit, etc. Each unit is integrated in a box and fixed on the crossbar on the side of the road. It has functions such as perception, monitoring, communication, and data processing.

[0031] The power connection device of the utility model mainly includes a circuit board, an input connector and an output connector. The circuit board can adopt a PCB (Printed Circuit Board) circuit board as a carrier of various devices and wiring such as the input connector and the output connector. The input connector of the utility model is an entrance for receiving external power input, so an input interface is provided on the input connector for inputting external power to the roadside base station. The output connector of the utility model is an outlet for providing power to the roadside base station, and a plurality of output channels are provided thereon for independently supplying power to a plurality of power-consuming units in the roadside base station.

[0032] Since the power supply lines of each power unit are independent of each other, there is no problem of mutual interference, and the function of single-end input and multi-end output can be realized to meet the power demand of multiple power units of the roadside base station. In addition, the power connection device of the utility model can exist independently of the roadside base station, reducing the modification cost of the roadside base station and is easy to install and operate when in use.

[0033] The power connection device of the utility model uses a connector for power connection, which is convenient for the production and installation of power line harnesses, improves assembly efficiency, and makes the connection more reliable and low-cost. It is suitable for integrated roadside base stations and can realize the function of single-end input and multi-end output of DC power supply, facilitating the power connection of the internal power consumption unit of the integrated roadside base station.

[0034] In some embodiments of the utility model, the power unit of the utility model may include, for example, a 5-way camera unit, a 2-way millimeter-wave radar unit, a switch unit, a computing unit, and a 4-way cooling fan unit, etc. Each unit has an independent power input interface, and the power supply voltage required by different units may be different. For example, the unit that requires a DC 12V power supply is: a 5-way camera unit, and the unit that requires a DC 24V power supply is: a 2-way millimeter-wave radar unit, a switch unit, a computing unit, and a 4-way cooling fan unit. Of course, the specific power units and the power supply voltage required by the power units can be flexibly set by those skilled in the art according to actual needs, and no specific limitation is made here.

[0035] In some embodiments of the utility model, the roadside base station is powered by a pole box, the pole box is fixed on a pole on the side of the road, one or more cables of different voltages extend from the pole box and are connected to the input interface of the power connection device, realizing single-line or multi-line grouping (such as 24V, 12V) input power supply, avoiding the problems of complex cables, inconvenient operation, and inconvenient assembly of an integrated roadside base station caused by the power lines of each power unit in the roadside base station being connected to the main power line.

[0036] In some embodiments of the present invention, the input-end connector and the output-end connector each include a plurality of them, and the plurality of input-end connectors are respectively used to input different power supply voltages.

[0037] The utility model can have multiple input connectors and output connectors, which are arranged relatively to each other, that is, one input connector corresponds to one output connector, and different input connectors are respectively connected to different voltage power supply interfaces provided on the power supply system, so as to meet the different voltage requirements of different power consumption units in the roadside base station.

[0038] For example, a 5-way camera unit generally requires a DC 12V power supply, and a 2-way millimeter-wave radar unit generally requires a DC 24V power supply, that is, the power supply voltages required by the two power-consuming units are different. Therefore, the utility model can set two input-end connectors and two corresponding output-end connectors to form two groups of connectors, one of which is used to transmit a DC 12V voltage, and the other is used to transmit a DC 24V voltage. Of course, this is only an exemplary description of the utility model. The specific number of connectors can be flexibly adjusted by those skilled in the art in combination with actual application scenarios, and is not specifically limited here.

[0039] In some embodiments of the present invention, the input interfaces on the plurality of input-end connectors are provided with different pin spacings.

[0040] Each input-end connector of the utility model is provided with an input interface, and the pin spacings between the multiple input interfaces are set to different spacings, so that the power input interface has an anti-mismatch function, which facilitates the connection of the power connection device to the power supply system. That is, when the multiple input interfaces of the power connection device are connected to the power supply system providing different power supply voltages, the insertion position of each input interface can be determined by different pin spacings to avoid wrong insertion.

[0041] In some embodiments of the present invention, the output channels on the plurality of output connectors are provided with different pin spacings and different pin numbers.

[0042] The multiple output-end connectors of the utility model are respectively used to provide deployed power supply voltages to power-consuming units. Therefore, in order to ensure the correct access of the power-consuming units, different pin spacings and different pin numbers are also arranged between different output-end connectors, so that the power output interface has an anti-foolproof function, which facilitates the access of each power-consuming unit of the roadside base station to the power connection device.

[0043] To facilitate understanding of the above embodiments, Figure 2 As shown, a schematic diagram of the circuit structure of a power connection device of the utility model is provided. Taking DC 12V and DC 24V voltage as an example, two input terminal connectors J1 and J3 are provided, and two output terminal connectors J2 and J4 are provided oppositely.

[0044] Connector J1 is a 24V input interface. A single-row, 2-pin plug-in terminal block with a pin pitch of 5.08mm can be used. For example, the terminal block KF2EDGRM-5.08-2P produced by KEDA can be used.

[0045] Connector J3 is a 12V input interface. A single-row, 2-pin plug-in terminal block with a pin pitch of 3.81mm can be used. For example, the terminal block KF2EDGRM-3.81-2P produced by KEDA can be used.

[0046] Connector J2 is a double-row connector. The first row is the positive interface of the 24V output channel, and the second row of connector J2 is the negative interface of the 24V output channel. J2 can use a double-row plug-in terminal block with 8 pins in each row, and the pin spacing is 3.81mm. For example, the terminal block KF2EDGRH-3.81-2*8P of KEDA Electric Co., Ltd. can be used.

[0047] Connector J4 is a double-row connector. The first row is the positive interface of the 12V output channel, and the second row of connector J4 is the negative interface of the 12V output channel. J4 can use a double-row plug-in terminal with 7 pins in each row, and the pin spacing is 3.5mm. For example, the terminal KF2EDGRH-3.5-2*7P of KEDA Electric Co., Ltd. can be used.

[0048] The pin spacing of the connector J1 and connector J3 is Figure 2The distance between pin 1 and pin 2 on connector J1 and connector J3, as mentioned above, the distance between adjacent pins on connector J1 is different from the distance between adjacent pins on connector J3. The pin spacing set for connector J2 and connector J4 refers to the distance between pin 1 and pin 2, pin 2 and pin 3, ... on connector J2 and connector J4. As mentioned above, the distance between adjacent pins on connector J2 is different from the distance between adjacent pins on connector J4, and the number of pins on connector J2 is also different from the number of pins on connector J4. This is mainly related to the number of power units that connectors J2 and J4 need to connect. Of course, if the number of power units that the two connectors need to connect is the same, they can also be distinguished by adding a reserved interface so that the number of pins set on the two connectors is different.

[0049] Of course, it should be noted that the specific type of connector and the number of connectors can be flexibly adjusted by those skilled in the art according to actual needs, and are not specifically limited here.

[0050] In some embodiments of the present invention, the power connection device further includes a circuit protection unit, and the circuit protection unit is disposed between the input connector and the output connector.

[0051] The existing wiring method is to directly connect the power lines of each power-consuming unit without providing proper protection for the power supply. Therefore, the power connection device of the utility model further includes a circuit protection unit, which is arranged between the input connector and the output connector to provide an overcurrent protection function for the power supply line.

[0052] In some embodiments of the present invention, the circuit protection unit includes a plurality of circuit protection units, and each circuit protection unit is respectively arranged between the input interface and each output channel.

[0053] The utility model has multiple circuit protection units, that is, a circuit protection unit is set between the input interface and each output channel, so as to provide an independent overcurrent protection function for each power unit. Figure 3 As shown, a structural block diagram of another power connection device of the utility model is provided.

[0054] In some embodiments of the present invention, the circuit protection units corresponding to any two adjacent output channels are arranged alternately.

[0055] like Figure 2As shown, the utility model further staggers the circuit protection units corresponding to any two adjacent output channels, thereby ensuring sufficient space for installation and removal of the circuit protection units, achieving rapid removal and installation of the circuit protection units, and facilitating replacement of the circuit protection units.

[0056] In some embodiments of the present invention, the circuit protection unit includes a fuse holder and a fuse, and the fuse is detachably arranged on the fuse holder.

[0057] The circuit protection unit of the utility model can be composed of a fuse holder and a fuse, and the fuse is detachably arranged on the fuse holder, so as to be convenient for subsequent disassembly and replacement.

[0058] like Figure 2 As shown, the F1 to F15 devices are circuit protection units composed of fuse holders and fuses. The fuse holder can be a chip fuse holder of Model 01550900M produced by Litte Company. One fuse can be installed on each fuse holder. This method can realize the rapid removal and installation of the fuse, making it convenient to replace the fuse.

[0059] The present invention can select a suitable fuse according to the power size of the power unit, and the fuse needs to be installed on the fuse holder. For example, 24V output channels 1 and 2 are used to power the millimeter wave radar unit, and a fuse with a rated current of 1A can be selected, such as the fuse with model 0154001 of Litte Company. 24V output channel 3 is used to power the switch unit, and a fuse with a rated current of 1A can be selected, such as the fuse with model 0154001 of Litte Company. 24V output channel 4 is used to power the computing unit, and a fuse with a rated current of 3A can be selected, such as the fuse with model 0154003 of Litte Company. 24V output channels 5 to 8 are used to power the 4-way cooling fan unit, and a fuse with a rated current of 0.5A can be selected, such as the fuse with model 0154.500 of Litte Company.

[0060] 12V output channels 1 to 5 are used to power 5 camera units respectively. A fuse with a rated current of 2A can be used, such as the fuse with model 0154002 from Litte. 12V output channels 6 and 7 can be reserved as backup power supply interfaces. A fuse with a rated current of 0.5A can be used, such as the fuse with model 0154.500 from Litte.

[0061] Of course, the specific type of fuse and fuse holder can be flexibly selected by those skilled in the art according to actual needs, and no specific limitation is made here.

[0062] In some embodiments of the present invention, the circuit board includes a top layer and a bottom layer, the input-end connector and the output-end connector are both arranged in the top layer of the circuit board, and the bottom layer of the circuit board is provided with a power ground.

[0063] like Figure 4 As shown, a schematic diagram of the device layout of a circuit board of the utility model is provided. The PCB circuit board of the utility model can be designed to a suitable size according to application requirements, for example, it is designed to be 70mm long and 62mm wide. Of course, the specific size can be flexibly set according to requirements and is not specifically limited here.

[0064] The PCB circuit board adopts a two-layer board structure, and all devices are placed on the top layer. The J1 and J3 connectors can be placed on the left side of the PCB board, and J2 and J4 are placed on the right side of the PCB board. The fuse holders F1 to F15 are placed in the middle of the PCB as shown in the figure, and are placed in a staggered manner. They are designed to be placed in rows to ensure that there is enough space for the installation and removal of the fuses. The bottom layer is designed to lay the power ground, and the top layer is used for routing. That is, the power network is all on the top layer, so the power signal has a complete ground plane as a reference. The left column pins of J2 are designed as the positive interface of the 24V power supply, and the right column pins are designed as the negative interface, which is conducive to PCB routing. Similarly, the left column pins of J4 are designed as the positive interface of the 12V power supply, and the right column pins are designed as the negative interface, which is conducive to PCB routing.

[0065] In summary, the power connection device of the utility model has achieved at least the following technical effects:

[0066] 1) Use connectors for power connection, which facilitates the production and installation of power cord harnesses, improves assembly efficiency, and makes the connection more reliable;

[0067] 2) Provide single-ended input and multi-ended output functions with multiple power supply voltages to meet the voltage requirements of different power consumption units;

[0068] 3) The selection and combination of the power input interface and the output interface ensure that the power wiring device has a fool-proof function;

[0069] 4) Fuses with different rated currents are allocated to different power output channels, making the overcurrent protection capability of each channel more targeted and better able to match the use requirements of the integrated roadside base station;

[0070] 5) The staggered arrangement of the fuse holders ensures that there is enough space for the installation and removal of the fuses, enabling quick removal and installation of the fuses and facilitating fuse replacement;

[0071] 6) Multi-channel independent design increases the total output current;

[0072] 7) Structural design of PCB circuit board, power ground design on the bottom layer, device placement and routing on the top layer to make the power reference plane more complete;

[0073] 8) PCB circuit board device layout, the input connector is placed on the left side of the PCB circuit board, the output connector is placed on the right side of the PCB circuit board, the circuit protection unit is placed in the middle of the PCB circuit board, and they are staggered, which is conducive to the routing of the PCB circuit board.

[0074] Example 2

[0075] The utility model also provides a roadside system. Figure 3 A schematic structural diagram of a roadside system of the utility model is shown, wherein the roadside system comprises a power connection device and a roadside base station as described in any of the above items, and the roadside base station is connected to the power supply system via the power connection device.

[0076] The above description is only a specific implementation of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A power connection device, wherein: The power connection device comprises a circuit board, an input-end connector and an output-end connector, wherein the input-end connector and the output-end connector are arranged on the circuit board; The input connector is provided with an input interface, and the input interface is used to input an external voltage; The output end connector is provided with a plurality of output channels connected with the input interface, and the plurality of output channels are used to supply power to a plurality of power consumption units in the roadside base station respectively.

2. The power connection device according to claim 1, wherein: The input-end connector and the output-end connector each include a plurality of them, and the plurality of input-end connectors are respectively used to input different power supply voltages.

3. The power connection device according to claim 2, wherein: The input interfaces on the plurality of input-end connectors are provided with different pin spacings.

4. The power connection device according to claim 2, wherein: The output channels on the plurality of output end connectors are provided with different pin spacings and different pin numbers.

5. The power connection device according to claim 1, wherein: The power connection device further includes a circuit protection unit, and the circuit protection unit is arranged between the input-end connector and the output-end connector.

6. The power connection device according to claim 5, wherein: The circuit protection unit includes a plurality of circuit protection units, each of which is respectively arranged between the input interface and each output channel.

7. The power connection device according to claim 6, wherein: The circuit protection units corresponding to any two adjacent output channels are arranged alternately.

8. The power connection device according to any one of claims 5 to 7, wherein: The circuit protection unit comprises a fuse holder and a fuse, and the fuse is detachably arranged on the fuse holder.

9. The power connection device according to claim 1, wherein: The circuit board comprises a top layer and a bottom layer, the input-end connector and the output-end connector are both arranged in the top layer of the circuit board, and the bottom layer of the circuit board is provided with a power ground.

10. A roadside system, wherein: The roadside system comprises the power connection device as claimed in any one of claims 1 to 9 and a roadside base station, and the roadside base station is connected to the power supply system through the power connection device.

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