Intelligent quick plug switch module

Abstract

The application discloses an intelligent quick-plug switch module, comprising a shell, a plurality of switch devices and a control circuit module arranged in the shell, the plurality of switch devices are configured into two groups, including a positive switch device group and a negative switch device group, the positive switch device group and the negative switch device group are electrically connected with each other through two copper bars respectively, and the switch devices in the positive switch device group and the switch devices in the negative switch device group are matched one by one to form a plurality of working loops, the control circuit module is electrically connected with the switch devices and is used for controlling the switch devices to switch between a closed state and an open state, so that the working loop in which the switch device is located is turned on or turned off. The switch module can realize dynamic distribution of power, can be configured with different levels of power for charging and discharging facilities, can be quickly plugged and mounted, and is more intelligent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging and discharging facilities, in particular to an intelligent quick plug switch module. BACKGROUND

[0002] In recent years, under the promotion of the rising global oil price, insufficient oil supply in various countries, and increasingly stringent automobile exhaust emission standards in various countries and regions, new energy environmental protection has gradually become the global focus, and various countries have successively proposed the time for banning the sale of fuel vehicles, and our country has also made a solemn promise to completely ban the sale of fuel vehicles by 2035. As an energy-saving and environmentally friendly green travel tool, new energy vehicles are rapidly developing and expanding globally.

[0003] Electric vehicle charging and discharging facilities are one of the important infrastructures for the large-scale and industrial development of electric vehicles. At present, charging and discharging facility products are developing steadily, and a huge market has gradually formed. As one of the important components of charging and discharging facilities, the existing power distribution unit generally adopts high-voltage DC contactors installed separately in the charging cabinet, which leads to difficulties in quick replacement assembly and after-sales replacement. In addition, the unit does not have intelligent analysis and processing capabilities, and there are problems such as difficulty in troubleshooting single contactor, state detection indication, and unknown fault source, which causes a lot of waste of resources and potential conflicts. Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. SUMMARY

[0004] In order to solve the above technical problems, the present application provides an intelligent quick plug switch module in the form of one-in-four-out switch module, which aims to increase the compatibility between the charging and discharging facility and the switch module under the premise of solving single or multi-channel power output of the charging and discharging facility, making it more convenient for production and maintenance. At the same time, an intelligent module part is added to the switch module, which has functions such as working state detection, temperature and voltage detection, and loop autonomous control.

[0005] The technical scheme adopted by the present application to solve its technical problems is: an intelligent quick plug switch module, comprising: a shell and a plurality of switch devices and a control circuit module installed in the shell, the plurality of switch devices are configured into two groups, including a positive switch device group and a negative switch device group, the positive switch device group and the negative switch device group are electrically connected to each other through two copper bars, and the switch devices in the positive switch device group and the switch devices in the negative switch device group are one-to-one matched to form a plurality of working loops, the control circuit module is electrically connected with the switch devices, used for controlling the corresponding switch devices to switch between the closed state and the open state, so that the working loop in which the switch device is located is turned on or turned off.

[0006] As a further improvement of the present application, the switch devices are each provided with two main contacts, one of which is fixedly connected to the copper bar, and the other of which is provided with an output quick plug connector; and the output quick plug connectors on the positive switch device group and the output quick plug connectors on the negative switch device group are arranged in an interlaced manner.

[0007] As a further improvement of the present application, the output quick plug connector is fork-shaped and has two elastic clamping pieces, and a slot for quick plugging with an external bus copper bar is formed between the two elastic clamping pieces.

[0008] As a further improvement of the present application, the control circuit module comprises a collection signal circuit board and a control main board, the collection signal circuit board and the control main board are electrically connected through an adapter wire harness and can transmit signals, and the switch devices are electrically connected to the collection signal circuit board and controlled by the control main board to realize opening and closing.

[0009] As a further improvement of the present application, the control main board is provided with a CAN communication module and a CAN communication interface, the CAN communication interface is used to be connected to an external control system, so that the control main board and the control system perform CAN communication to realize opening and closing control of the switch devices.

[0010] As a further improvement of the present application, the control main board is further provided with an address selection dial switch, a state indicating lamp, a software burning interface and a power supply interface, the address selection dial switch realizes CAN communication between the control main board and the control system by setting different addresses; the state indicating lamp is provided with a plurality of state indicating lamps, which are one-to-one corresponding to the working loops, and are used to display the working states of the corresponding working loops; and the software burning interface is used to receive an upgrade file introduced by an external central control or a storage medium.

[0011] As a further improvement of the present application, temperature sensors are mounted on the two copper bars, and the temperature sensors are electrically connected to the collection signal circuit board through temperature collection wire harnesses, and the collection signal circuit board transmits temperature collection signals to the control main board to detect the temperatures of the two copper bars.

[0012] As a further improvement of the present application, the two copper bars are electrically connected to the collection signal circuit board through voltage collection wire harnesses, and the collection signal circuit board transmits collected voltage collection signals to the control main board to detect the voltage between the two copper bars.

[0013] As a further improvement of the present application, the switch devices are contactors or relays.

[0014] The top of the switch device is provided with a coil power supply pin, which is welded on the signal collection circuit board to realize electrical connection.

[0015] The switch device is also provided with an auxiliary contact and an auxiliary switch pin led out by the auxiliary contact, which is also welded on the signal collection circuit board to realize electrical connection, and the switching of the switch device between the closed state and the open state can synchronously link the auxiliary contact to realize opening and closing.

[0016] As a further improvement of the application, the shell comprises an upper shell, a middle shell and a lower shell, the upper shell is arranged on the top of the middle shell, a plurality of accommodating grooves matched with the size of the switch device are arranged in the middle shell, the switch device is installed in the accommodating grooves, the signal collection circuit board is arranged on the top of the switch device, the lower shell is installed on the bottom of the middle shell, and the control main board is arranged in the lower shell.

[0017] The application has the following beneficial effects:

[0018] 1. The application provides an intelligent quick plug switch module, which is suitable for a charging stack formed by one or more switch modules integrated together, and realizes the conduction or disconnection of the working circuit by controlling the corresponding switch device to be closed or disconnected through the control circuit module, thereby realizing the dynamic distribution of power and configuring different levels of power for the charging and discharging facilities.

[0019] 2. The output quick plug connector is installed on the main contact of the switch device, which can be quickly plugged with the bus copper bar of the charging and discharging facility one by one, greatly reducing the complicated connection operation caused by multiple switch devices, and facilitating the quick installation and after-sales maintenance of the switch module.

[0020] 3. The control circuit module is divided into a signal collection circuit board and a control main board, and is functionally divided, the signal collection circuit board realizes the electrical connection of the device and the signal transmission to the control main board, the control main board realizes intelligent analysis and processing, external connection, state display, software upgrading, CAN communication and other expansion functions, the structure design is reasonable and ingenious, the overall layout is more compact, the space occupied by the switch module is reduced, the plug-in components are arranged on the control main board, which is more conducive to realizing quick plug and facilitating operation.

[0021] 4. The control circuit module of the application has the functions of working state detection, temperature and voltage detection, loop self-control, etc., so that the switch module is more intelligent and the maintenance is more convenient.

[0022] 5. The coil power supply pin and auxiliary switch pin of the switch device are connected with the signal collection circuit board by welding, and the temperature collection and voltage collection are connected with the signal collection circuit board through the wire harness, so that the use of wires is reduced, the problems of wire line disorder and wire arrangement difficulty are avoided, and the assembly of various components is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of the intelligent quick plug switch module of the application;

[0024] Figure 2 It is an exploded view of the intelligent quick plug switch module of the application;

[0025] Figure 3 It is a top view of the intelligent quick plug switch module of the application after removing the upper shell;

[0026] Figure 4 It is a bottom view of the intelligent quick plug switch module of the application;

[0027] Figure 5 It is a perspective view of the switch device and the output quick plug connector of the application;

[0028] Figure 6 It is a structural schematic view of the intelligent quick plug switch module and the bus copper bar in the plug-in state.

[0029] The following description is made in conjunction with the drawings:

[0030] 1 - shell; 101 - upper shell;

[0031] 102 - middle shell; 1021 - accommodating groove;

[0032] 103 - lower shell; 2 - switch device;

[0033] 201 - main contact; 202 - coil power supply pin;

[0034] 203 - auxiliary switch pin; 3 - positive switch device group;

[0035] 4 - negative switch device group; 5 - copper bar;

[0036] 6 - output quick plug connector; 601 - elastic clamping piece;

[0037] 602 - insertion slot; 7 - signal collection circuit board;

[0038] 8 - control mainboard; 9 - adapter wire harness;

[0039] 10 - CAN communication interface; 11 - address selection dial switch;

[0040] 12——Status indicator light; 13——Software burning interface;

[0041] 14——Power supply interface; 15——Temperature acquisition harness;

[0042] 16——voltage collection harness; 17——busbar;

[0043] 18——Temperature sensor. DETAILED DESCRIPTION

[0044] A preferred embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0045] See Figures 1 to 6 The present invention provides an intelligent quick-plug switch module for use in DC charging and discharging facilities, comprising: a housing 1, eight switching devices 2 mounted within the housing 1, and a control circuit module. The housing 1 comprises an upper housing 101, a middle housing 102, and a lower housing 103. The upper housing 101 is mounted on the top of the middle housing 102, and the lower housing 103 is mounted on the bottom of the middle housing 102. The middle housing 102 is provided with eight accommodating slots 1021 that match the size of the switching devices 2. The eight accommodating slots 1021 are arranged in two parallel rows and staggered left and right, with the switching devices 2 mounted within the slots 1021. The eight switching devices 2 are arranged in pairs and divided into two groups: a positive switching device group 3 and a negative switching device group 4. The switching devices 2 in the same row are grouped together. The positive switching device group 3 electrically connects the switching devices 2 therein via a copper busbar 5, while the negative switching device group 4 electrically connects the switching devices 2 therein via another copper busbar 5. One end of each copper busbar 5 is exposed outside the housing 1 as a DC power output terminal. The four switching devices 2 in the positive switching device group 3 and the four switching devices 2 in the negative switching device group 4 correspond one-to-one to form four working circuits. The control circuit module is electrically connected to the eight switching devices 2 and is used to control the corresponding switching devices 2 to switch between the closed state and the open state, so that the working circuit in which the switching device 2 is located is turned on or off, thereby realizing dynamic power distribution.

[0046] It should be noted that the present application does not limit the number of switch devices 2, and corresponding changes can be made according to actual usage requirements. For example, twelve can be configured to achieve a one-input and six-output function.

[0047] See Figure 2 and Figure 5The switch device 2 is a contactor or a relay, preferably, the switch device 2 of the application adopts a relay, the top of which is provided with two main contacts 201, one of which is fixedly connected with the corresponding copper bar 5, and the other of which is provided with an output quick plug connector 6, eight output quick plug connectors 6 are arranged in the middle of the shell 1 and protrude from the upper shell 101, and the output quick plug connectors 6 on the positive switch device group 3 and the output quick plug connectors 6 on the negative switch device group 4 are arranged in a staggered manner, forming four groups of output connection ends.

[0048] Specifically, the output quick plug connector 6 is fork-shaped and has two elastic clamping pieces 601, and a slot 602 is formed between the two elastic clamping pieces 601, which can be quickly and correspondingly plugged with the bus copper bars 17 of the charging and discharging facility, so that the assembly is convenient and fast, and the complicated connection operation caused by multiple switch devices is greatly reduced.

[0049] Referring to Figure 2 The control circuit module includes a signal acquisition circuit board 7 and a control main board 8, the signal acquisition circuit board 7 is arranged on the top of the switch device 2, the control main board 8 is arranged in the lower shell 103, the signal acquisition circuit board 7 and the control main board 8 are electrically connected through the adapter wire harness 9 and can transmit signals, and the switch device 2 is electrically connected to the signal acquisition circuit board 7 and is controlled by the control main board 8 to realize opening and closing.

[0050] The control main board 8 is provided with a main control chip, a CAN communication module, a CAN communication interface 10, an address selection dial switch 11, a state indicating lamp 12, a software burning interface 13 and a power supply interface 14. The CAN communication interface 10 is used to be connected to the control system of the charging and discharging facility, different addresses are set through the address selection dial switch 11, so that the control main board 8 and the control system perform CAN communication to realize the opening and closing control of the switch device 2. The state indicating lamp 12 adopts a LED three-color lamp and has four, which are one-to-one corresponding to four working loops and are used to display the working state of the corresponding working loop. The software burning interface 13 is used to receive the upgrade file introduced by the external central control or storage medium. In addition, the control main board 8 also has a software upgrade function, which receives the upgrade file through CAN communication with the control system of the charging and discharging facility, so that the charging and discharging facility is always kept in the best state. In the embodiment, the control circuit module is divided into the signal acquisition circuit board 7 and the control main board 8, which are functionally divided, the signal acquisition circuit board 7 realizes the electrical connection of the device and transmits signals to the control main board 8, the main control chip of the control main board 8 realizes intelligent analysis and processing and external connection, state display and other expansion functions, and can make the overall structure more compact and reduce the space occupied by the switch module; in addition, the plug-in interfaces are arranged on the control main board 8, and the through holes corresponding to the plug-in interfaces are arranged on the lower shell 103, which is more conducive to realizing quick plugging and is convenient to operate.

[0051] Referring to Figure 2 and Figure 3 , the switch module of the application also has temperature detection and voltage detection functions. Specifically, temperature sensors 18 are installed on both copper bars 5, and the temperature sensors 18 are electrically connected to the signal acquisition circuit board 7 through the temperature acquisition harness 15. The signal acquisition circuit board 7 transmits the temperature acquisition signals collected by the temperature sensors 18 to the control mainboard 8, and the main control chip of the control mainboard 8 processes and analyzes the temperature acquisition signals to detect the temperature of the two copper bars 5. The two copper bars 5 are electrically connected to the signal acquisition circuit board 7 through the voltage acquisition harness 16, and the signal acquisition circuit board 7 transmits the voltage acquisition signals collected to the control mainboard 8, and the main control chip of the control mainboard 8 processes and analyzes the voltage acquisition signals to detect the voltage between the two copper bars 5. With this design, it can be monitored in real time whether the switch module is in a normal working state, and once an abnormality occurs, a quick response can be made to cut off the working circuit and avoid danger. Temperature acquisition and voltage acquisition are electrically connected to the signal acquisition circuit board 7 through the harness, which can reduce the use of wires, avoid problems such as wire line confusion and wiring difficulty, save space, and facilitate assembly of each component.

[0052] Referring again to Figure 2 and Figure 5 , the switch device 2 is provided with a coil and a coil power supply pin 202 led out by the coil. The coil power supply pin 202 is arranged at the top of the switch device 2, and the coil power supply pin 202 is welded on the signal acquisition circuit board 7 to realize electrical connection and power supply for the coil. The switch device 2 is also provided with an auxiliary contact and an auxiliary switch pin 203 led out by the auxiliary contact. The auxiliary switch pin 203 is arranged on the side opposite to the coil power supply pin 202 at the top of the switch device 2, and the auxiliary switch pin 203 is also welded on the signal acquisition circuit board 7 to realize electrical connection. By welding the coil power supply pin 202 and the auxiliary switch pin 203 to the signal acquisition circuit board 7, the use of wires can be reduced, and problems such as wire line confusion and wiring difficulty can be avoided. The switching of the switch device 2 between the closed state and the open state can synchronously link the auxiliary contact to realize opening and closing, thereby enabling the control mainboard 8 to diagnose and analyze the attraction and disconnection of the switch device 2, and enabling the control mainboard 8 to detect whether the main contact 201 of the switch device 2 is stuck.

[0053] It can be seen that the intelligent quick plug switch module is suitable for a charging stack formed by one or more switch modules integrated together, and the working loop where the switch module is located is realized to be turned on or turned off by controlling the corresponding switch device to be closed or opened through the control circuit module, so that the dynamic distribution of power is realized, and different levels of power can be configured for the charging and discharging facility; the output quick plug connector is installed on the main contact of the switch device, which can be quickly plugged with the bus copper bar of the charging and discharging facility one by one, greatly reducing the cumbersome connection operation caused by multiple switch devices, facilitating quick installation and after-sales maintenance of the switch module; the control circuit module is divided into a signal acquisition circuit board and a control mainboard, and is functionally divided, the signal acquisition circuit board realizes electrical connection of the device and signal transmission to the control mainboard, the control mainboard realizes intelligent analysis and processing, external connection, state display, software upgrading, CAN communication and other expansion functions, the structure is reasonably and ingeniously designed, the overall layout is more compact, the space occupied by the switch module is reduced, the plug-in components are arranged on the control mainboard, which is more conducive to realizing quick plug and facilitating operation; the control circuit module has the functions of working state detection, temperature and voltage detection, loop self-control, etc., so that the switch module is more intelligent and maintenance is more convenient; the coil power supply pin and the auxiliary switch pin of the switch device are electrically connected with the signal acquisition circuit board in a welding manner, and the temperature acquisition and voltage acquisition are electrically connected with the signal acquisition circuit board through a wire harness, so that the use of wires is reduced, and problems such as wire line confusion and wire arrangement difficulty are avoided, and the assembly of components is convenient.

[0054] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is only a preferred embodiment of the present application, and the present application can be implemented in many other ways different from those described herein, so the present application is not limited to the specific implementation disclosed above. Meanwhile, any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments, without departing from the scope of the technical solutions of the present application, by using the methods and technical contents disclosed above. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, all still belong to the protection scope of the technical solutions of the present application.

Claims

1. An intelligent quick-plug switch module, characterized in that: include: A housing (1) and a plurality of switch devices (2) and a control circuit module installed in the housing (1), wherein the plurality of switch devices (2) are configured into two groups, including a positive switch device group (3) and a negative switch device group (4), wherein the positive switch device group (3) and the negative switch device group (4) electrically connect their respective switch devices (2) to each other through two copper bars (5), and the switch devices (2) in the positive switch device group (3) and the switch devices (2) in the negative switch device group (4) are matched one-to-one to form a plurality of working circuits, and the control circuit module is electrically connected to the switch devices (2) and is used to control the corresponding switch devices (2) to switch between a closed state and an open state, so that the working circuit in which the switch devices (2) are located is turned on or off; The control circuit module comprises a signal acquisition circuit board (7) and a control main board (8); the signal acquisition circuit board (7) and the control main board (8) are electrically connected via a transfer harness (9) and can transmit signals; the switch devices (2) are electrically connected to the signal acquisition circuit board (7) and are controlled by the control main board (8) to be opened and closed; wherein the signal acquisition circuit board (7) is arranged on the top of the switch device (2); the top of the switch device (2) is provided with a coil power supply pin (202); the coil power supply pin (202) is welded to the signal acquisition circuit board (7) to achieve electrical connection; A temperature sensor (18) is installed on each of the two copper busbars (5). The temperature sensors (18) are electrically connected to the acquisition signal circuit board (7) via a temperature acquisition harness (15). The acquisition signal circuit board (7) transmits the temperature acquisition signal to the control main board (8) to detect the temperature of the two copper busbars (5). The two copper busbars (5) are electrically connected to the acquisition signal circuit board (7) via a voltage acquisition harness (16). The acquisition signal circuit board (7) transmits the acquired voltage acquisition signal to the control main board (8) to detect the voltage between the two copper busbars (5).

2. The intelligent quick-plug switch module according to claim 1, characterized in that: Each of the switch devices (2) has two main contacts (201), one of which is fixedly connected to the copper busbar (5), and the other of the main contacts (201) is equipped with an output quick-plug connector (6), and the output quick-plug connector (6) on the positive switch device group (3) and the output quick-plug connector (6) on the negative switch device group (4) are arranged in an alternating manner.

3. The intelligent quick-plug switch module according to claim 2, characterized in that: The output quick-plug connector (6) is fork-shaped and has two elastic clamping pieces (601). A slot (602) for quick plugging with an external busbar (17) is formed between the two elastic clamping pieces (601).

4. The intelligent quick-plug switch module according to claim 1, characterized in that: The control main board (8) is provided with a CAN communication module and a CAN communication interface (10), and the CAN communication interface (10) is used to connect to an external control system so that the control main board (8) and the control system perform CAN communication to realize the on-off control of the switch device (2).

5. The intelligent quick-plug switch module according to claim 4, characterized in that: The control main board (8) is further provided with an address selection dial switch (11), a status indicator light (12), a software burning interface (13) and a power supply interface (14). The address selection dial switch (11) enables CAN communication between the control main board (8) and the control system by setting different addresses; a plurality of status indicator lights (12) are provided, each corresponding to the working circuit, for displaying the working status of the corresponding working circuit; the software burning interface (13) is used to receive an upgrade file imported from an external central control or a storage medium.

6. The intelligent quick-plug switch module according to claim 1, characterized in that: The switching device (2) is a contactor or a relay; The switch device (2) is further provided with an auxiliary contact and an auxiliary switch pin (203) led from the auxiliary contact. The auxiliary switch pin (203) is also welded on the signal acquisition circuit board (7) to achieve electrical connection. When the switch device (2) switches between a closed state and an open state, the auxiliary contact can be synchronously linked to achieve opening and closing.

7. The intelligent quick-plug switch module according to claim 1, characterized in that: The housing (1) comprises an upper housing (101), a middle housing (102) and a lower housing (103); the upper housing (101) is arranged on the top of the middle housing (102); a plurality of accommodating grooves (1021) matching the size of the switch device (2) are provided in the middle housing (102); the switch device (2) is installed in the accommodating grooves (1021); the lower housing (103) is installed at the bottom of the middle housing (102); and the control mainboard (8) is arranged in the lower housing (103).

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