CN219477624U - Scram control device and group charging system - Google Patents
Scram control device and group charging system Download PDFInfo
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- CN219477624U CN219477624U CN202320276640.XU CN202320276640U CN219477624U CN 219477624 U CN219477624 U CN 219477624U CN 202320276640 U CN202320276640 U CN 202320276640U CN 219477624 U CN219477624 U CN 219477624U
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- scram
- circuit
- charging
- emergency stop
- charging terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The utility model provides a scram control device and a group charging system, wherein the scram control device comprises: a charging main machine side scram circuit, a charging terminal side scram circuit and a connecting circuit; the charging terminal side scram circuit is arranged in a scram device of the charging terminal, the scram device is provided with a scram button, and the charging terminal side scram circuit is used for being interrupted when the scram button is pressed down and/or when an external sensor detects abnormality; the charging host side scram circuit is arranged in the charging host and is used for detecting an interrupt signal of the scram device through the connecting circuit; the connection circuit includes a long-distance transmission line. The utility model can be applied to the existing group charging system, and the response speed of the emergency stop control operation is improved through the redundant path, so that the charging safety is ensured.
Description
Technical Field
The utility model relates to the technical field of circuit fault detection, in particular to an emergency stop control device and a group charging system.
Background
The electric automobile group charging system CAN distribute the power conversion module of the group charging system for the electric automobile according to the charging requirement of the electric automobile, at present, related technology proposes that an emergency stop button is arranged on each charging terminal of the group charging system for facilitating users to meet emergency situations and capable of rapidly stopping charging, so that the charging of the charging terminal CAN be stopped by pressing the emergency stop button under the emergency situations, the power conversion module is not distributed to the charging terminal by the reporting power distribution unit, but only CAN communication is carried out between the charging terminal and a charging cabinet, and therefore delay is caused when data blocking queuing occurs in CAN communication, or an emergency stop signal CAN not be transmitted timely and charging CAN be stopped when the CAN communication fails.
Disclosure of Invention
Accordingly, the present utility model is directed to an emergency stop control device and a group charging system, which can be applied to the existing group charging system to increase the response speed of the emergency stop control operation through a redundant path, thereby ensuring the charging safety.
In a first aspect, an embodiment of the present utility model provides an emergency stop control device, which is applied to a charger, and is characterized in that the emergency stop control device includes: a charging main machine side scram circuit, a charging terminal side scram circuit and a connecting circuit; the charging terminal side scram circuit is arranged in a scram device of the charging terminal, the scram device is provided with a scram button, and the charging terminal side scram circuit is used for being interrupted when the scram button is pressed down and/or when an external sensor detects abnormality; the charging host side scram circuit is arranged in the charging host and is used for detecting an interrupt signal of the scram device through the connecting circuit; the connection circuit includes a long-distance transmission line.
In one embodiment, a charging terminal side scram circuit includes: a charging terminal side main circuit, a control end, an emergency stop button and a first detection circuit; the control end is used for receiving the abnormal signal detected by the peripheral sensor and interrupting the main circuit at the charging terminal side; the first detection circuit is used for detecting the on-off state of the main circuit of the charging terminal; the emergency stop button is arranged in the charging terminal main circuit in series.
In one embodiment, a charging host side scram circuit includes: a second detection circuit; the second detection circuit is used for detecting the on-off state of the connection circuit.
In one embodiment, the charging terminal side scram circuit further includes an isolation optocoupler for connecting the charging terminal side main circuit with the first detection circuit.
In one embodiment, the charging host side scram circuit is disposed in a plurality of power distribution units of the charging host, and the power distribution units are used for distributing power conversion modules of the charging host side scram circuit to the charging terminals.
In one embodiment, the charging host side scram circuit is connected to the long-distance transmission line through an optocoupler, and the long-distance transmission line is connected to the charging terminal side scram circuit through an optocoupler.
In one embodiment, the charging terminal side main circuit includes a first optocoupler, a first power supply and a second power supply, where the first optocoupler is connected to the first detection circuit, the first power supply and the second power supply, respectively, and is configured to partition the first power supply and the second power supply and transmit a current variation value.
In one embodiment, the charging terminal side main circuit further comprises a second optocoupler, and the second optocoupler is connected with the first optocoupler, the long-distance transmission line and the scram button respectively; the emergency stop button is also connected with the collector electrode of the triode; the control end is connected with the collector electrode of the triode.
In one embodiment, a charging host side scram circuit includes: a third optocoupler; the third optocoupler is connected with the long-distance transmission line, the third power supply, the fourth power supply and the second detection circuit respectively and is used for isolating the third power supply from the fourth power supply.
In a second aspect, an embodiment of the present utility model further provides a group charging system, including a charging host and a plurality of charging terminals, where the charging host and the plurality of charging terminals communicate through a CAN, including: the charging terminal side scram circuit is applied to a plurality of charging terminals, and a long-distance transmission line is used for connecting the charging host side scram circuit and the charging terminal side scram circuit, detecting faults and/or abnormal scram of the charging terminals, and stopping supplying power to the corresponding charging terminals when scram interruption is detected.
The embodiment of the utility model has the following beneficial effects:
the embodiment of the utility model provides an emergency stop control device and a group charging system, comprising: a charging main machine side scram circuit, a charging terminal side scram circuit and a connecting circuit; the charging terminal side scram circuit is arranged in a scram device of the charging terminal, the scram device is provided with a scram button, and the charging terminal side scram circuit is used for being interrupted when the scram button is pressed down and/or when an external sensor detects abnormality; the charging host side scram circuit is arranged in the charging host and is used for detecting an interrupt signal of the scram device through the connecting circuit; the connection circuit includes a long-distance transmission line. The utility model can be applied to the existing group charging system, and the response speed of the emergency stop control operation is improved through the redundant path, so that the charging safety is ensured.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an emergency stop control device according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a multi-charging circuit according to an embodiment of the utility model;
FIG. 3 is a schematic structural diagram of another emergency stop control device according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a group charging system according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to more efficiently utilize resources, currently, an electric vehicle group charging system is proposed in the prior art, the group charging system CAN provide charging power for an electric vehicle according to the charging requirement of the electric vehicle, specifically, a power conversion module of the group charging system is allocated to the electric vehicle according to the charging requirement of the electric vehicle, an emergency stop button is arranged for each charging terminal of the group charging system to enable a user to quickly stop charging in case of emergency, so that the charging of the charging terminal CAN be stopped by pressing the emergency stop button in case of emergency, and a reporting power allocation unit does not allocate the power conversion module to the charging terminal any more, for example, if the switch S is required to be turned off from on in GBT18487.1-2015, the output current is required to be reduced to 5A or below in 50ms, the traditional group charging system realizes the interruption of a three-phase alternating current input breaker at the host side through the emergency stop button, and delay is caused when the CAN communication is in case of data blocking queuing, or the charging cannot be stopped in time when the CAN communication is in case of failure.
For the convenience of understanding the present embodiment, a detailed description will be given of an emergency stop control device disclosed in the embodiment of the present utility model.
Referring to a schematic structural diagram of an emergency stop control device shown in fig. 1, the utility model provides an emergency stop control device, which is applied to a charger, and is characterized by comprising: a charging main machine side scram circuit, a charging terminal side scram circuit and a connecting circuit; the charging terminal side scram circuit is arranged in a scram device of the charging terminal, the scram device is provided with a scram button, and the charging terminal side scram circuit is used for being interrupted when the scram button is pressed down and/or when an external sensor detects abnormality; the charging host side scram circuit is arranged in the charging host and is used for detecting an interrupt signal of the scram device through the connecting circuit; the connection circuit includes a long-distance transmission line, wherein the charging host side scram circuit includes: the group charging system mainly comprises a power conversion module, a charging Central Control Unit (CCU), a Power Distribution Unit (PDU) and a terminal control unit (PCU), wherein the PDU is connected with the CCU and the PCU through a CAN, and the charging terminal comprises a terminal control unit, an emergency stop control device, an ammeter and various sensors.
In one embodiment, a charging terminal side scram circuit includes: a charging terminal side main circuit, a control end, an emergency stop button and a first detection circuit; the control end is used for receiving the abnormal signal detected by the peripheral sensor and interrupting the main circuit at the charging terminal side; the first detection circuit is used for detecting the on-off state of the main circuit of the charging terminal; the emergency stop button is arranged in the charging terminal main circuit in series, the charging terminal side emergency stop circuit further comprises an isolation optocoupler, the isolation optocoupler is used for connecting the charging terminal side main circuit with the first detection circuit, in one embodiment, the emergency stop button is used for conducting active emergency stop control, the active emergency stop control means that when a user encounters an emergency in the charging process, the emergency stop CAN be started by pressing the emergency stop button arranged on the outer surface of the charging terminal, the emergency stop button CAN be identified to be pressed through the detection circuit on the charging terminal, then the PCU sends an emergency stop state signal to the PDU of the main machine side through the CAN bus, and in another embodiment, the passive emergency stop control means that the PDU of the main machine side CAN also detect an emergency stop pressing signal transmitted through a long wire through the detection circuit of the PCU.
In one embodiment, the PDU triggers a scram response operation when receiving a scram status signal transmitted by the PCU or when the host side detection circuit detects the scram status signal, where the scram response operation includes: the power conversion modules allocated to the PDU are powered off and cut out, or the PDU is set to a disabled state so that the power conversion modules are not allocated to the charging terminals corresponding to the PDU, and the released power conversion modules can be called by PDUs corresponding to other charging terminals.
In one embodiment, the PCU may receive various sensor information provided in the charging terminal, and give an instruction to trigger the emergency stop state through analysis and judgment, and turn off a switching device connected in series with an emergency stop button in the emergency stop device through a control circuit to turn off an emergency stop state detection circuit, so that the PDU may detect an emergency stop state signal transmitted via an independent wire through a host side detection circuit. In particular, the scram status signal may be quickly identified to timely initiate a scram response operation when the CAN bus is blocked or queued for delay. The PDU is configured to initiate a scram response operation upon receipt of the scram status signal, and to initiate the scram response operation only once upon receipt of the multiple scram status signals within a predetermined time.
The emergency stop control device provided by the embodiment of the utility model comprises the charging terminal emergency stop and detection circuit and the main machine cabinet side detection circuit, wherein the detection circuit is in photoelectric isolation with the main circuit, the emergency stop circuit CAN be disconnected through an emergency stop button, the emergency stop circuit CAN be automatically disconnected according to the detected charging terminal environment condition through a switch unit connected with the emergency stop circuit in series, the main machine cabinet side CAN detect the emergency stop signal through the self detection circuit to execute subsequent emergency stop operation under the condition of CAN communication delay, the power supply of the main machine side is not completely stopped in the subsequent emergency stop operation, only the power conversion module called by the PDU is closed, and the released power conversion module CAN be called by PDUs of other terminals, so that the high-efficiency work under the condition of safety is ensured.
Referring to fig. 2, a schematic diagram of a charging circuit of a multi-terminal charging device, the circuit including a power distribution circuit and a charging circuit; the power distribution circuit comprises a plurality of groups of parallel switches, and the charging circuit is used for outputting the power transmitted to the charging terminal to a specific standard charging gun so as to charge the electric automobile. The charging host side scram circuit is arranged in a plurality of power distribution units of the charging host, the power distribution units are used for distributing the power conversion modules of the charging host side to the charging terminals, in one embodiment, the power loop is output to PDU input by the AC/DC module, the output of the PDU flows to the PDU through the power distribution circuit (a plurality of groups of relays) of the PDU, and finally the PDU is output to a charging gun with a specific standard by the charging terminals to charge the electric automobile, in one embodiment, the scram control device CAN transmit a signal of pressing a scram button to the PCU, and the PCU transmits the signal to the corresponding PDU through CAN communication so as to execute subsequent scram response operation, the scram response operation comprises shutting down the power conversion modules distributed to the PDU, and cutting out the power conversion modules, and setting the PDU to be forbidden so as not to distribute the power conversion modules to the charging terminals corresponding to the PDU.
Referring to the schematic structural diagram of another emergency stop control device shown in fig. 3, a charging host side emergency stop circuit is connected with a long-distance transmission line through an optical coupler, the long-distance transmission line is connected with a charging terminal side emergency stop circuit through an optical coupler, so that a PDU of the host side detects an emergency stop signal through the long-distance transmission line to further execute subsequent actions, in one embodiment, the charging terminal side main circuit includes a first optical coupler, a first power supply and a second power supply, the first optical coupler is connected with a first detection circuit, the first power supply and the second power supply respectively, and is used for isolating the first power supply and the second power supply and transmitting a current variation value, the first optical coupler can play a role of electrically isolating the detection circuit from the main circuit and transmitting an emergency stop signal, and in one embodiment, the charging terminal side main circuit further includes a second optical coupler, and the second optical coupler is connected with the first optical coupler, the long-distance transmission line and an emergency stop button respectively; the emergency stop button is also connected with the collector electrode of the triode; the control end is connected with the collector electrode of the triode.
In one embodiment, a charging host side scram circuit includes: a third optocoupler; the third optocoupler is connected with the long-distance transmission line, the third power supply, the fourth power supply and the second detection circuit respectively and is used for isolating the third power supply from the fourth power supply.
The emergency stop control device provided by the embodiment of the utility model can improve the response speed of the emergency stop control operation, thereby improving the working efficiency.
The emergency stop control device provided by the embodiment of the utility model can improve the response speed of the emergency stop control operation, thereby improving the working efficiency.
For the scram control device provided by the foregoing embodiment, the embodiment of the present utility model further provides a group charging system, including a charging host and a plurality of charging terminals, where the charging host and the plurality of charging terminals communicate through a CAN, referring to a communication structure schematic diagram of the group charging system shown in fig. 4, the system includes the scram control device provided by the foregoing embodiment, the charging host side scram circuit is applied to the charging host, the charging terminal side scram circuit is applied to the plurality of charging terminals, and a long-distance transmission line is used to connect the charging host side scram circuit and the charging terminal side scram circuit, to perform fault and/or abnormal scram detection of the charging terminals, and to stop supplying power to the corresponding charging terminals when a scram interrupt is detected.
The emergency stop control device and the group charging system provided by the embodiment of the utility model can improve the response speed of the emergency stop control operation, thereby improving the working efficiency.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the emergency stop control device described above may refer to the corresponding process in the foregoing embodiment, and will not be described in detail herein.
In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood by those skilled in the art in specific cases.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. An emergency stop control device is applied to a charger and is characterized by comprising: a charging main machine side scram circuit, a charging terminal side scram circuit and a connecting circuit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the charging terminal side scram circuit is arranged in a scram device of the charging terminal, the scram device is provided with a scram button, and the charging terminal side scram circuit is used for being interrupted when the scram button is pressed and/or when an external sensor detects abnormality;
the charging host side scram circuit is arranged in the charging host and is used for detecting an interrupt signal of the scram device through the connecting circuit;
the connection circuit includes a long-distance transmission line.
2. The scram control device as set forth in claim 1, wherein the charging terminal side scram circuit includes: a charging terminal side main circuit, a control end, an emergency stop button and a first detection circuit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the control end is used for receiving the abnormal signal detected by the peripheral sensor and interrupting the charging terminal side main circuit;
the first detection circuit is used for detecting the on-off state of the charging terminal side main circuit;
the emergency stop button is arranged in the charging terminal side main circuit in series.
3. The emergency stop control device according to claim 1, wherein the charging host side emergency stop circuit includes: a second detection circuit; the second detection circuit is used for detecting the on-off state of the connection circuit.
4. The scram control device as claimed in claim 2, wherein the charging terminal side scram circuit further comprises an isolation optocoupler for connecting the charging terminal side main circuit with the first detection circuit.
5. The scram control device as set forth in claim 1, wherein the charging host side scram circuit is provided in a plurality of power distribution units of the charging host for distributing a power conversion module of the charging host side scram circuit to the charging terminal.
6. The emergency stop control device according to claim 2, wherein the charging host side emergency stop circuit is connected to the long-distance transmission line through an optocoupler, and the long-distance transmission line is connected to the charging terminal side emergency stop circuit through an optocoupler.
7. The emergency stop control device according to claim 6, wherein the charging terminal side main circuit includes a first optocoupler, a first power source, and a second power source, the first optocoupler being connected to the first detection circuit, the first power source, and the second power source, respectively, for blocking the first power source and the second power source, and transmitting a current variation value.
8. The emergency stop control device according to claim 7, wherein the charging terminal side main circuit further includes a second optocoupler connected to the first optocoupler, the long-distance transmission line, and the emergency stop button, respectively; the emergency stop button is also connected with the collector electrode of the triode; and the control end is connected with the collector electrode of the triode.
9. The emergency stop control device according to claim 6, wherein the charging host side emergency stop circuit includes: a third optocoupler; the third optocoupler is connected with the long-distance transmission line, the third power supply, the fourth power supply and the second detection circuit respectively and is used for isolating the third power supply from the fourth power supply.
10. The utility model provides a crowd charging system, includes charge host computer and a plurality of terminal that charges, charge the host computer with a plurality of terminal that charges pass through CAN communication, its characterized in that includes: the scram control apparatus according to any one of claims 1 to 9, wherein the charging host side scram circuit is applied to the charging host, wherein the charging terminal side scram circuit is applied to the plurality of charging terminals, wherein the long-distance transmission line is used for connecting the charging host side scram circuit with the charging terminal side scram circuit, performing fault and/or abnormal scram detection of the charging terminal, and stopping power supply to the corresponding charging terminal when a scram interruption is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320276640.XU CN219477624U (en) | 2023-02-21 | 2023-02-21 | Scram control device and group charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320276640.XU CN219477624U (en) | 2023-02-21 | 2023-02-21 | Scram control device and group charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219477624U true CN219477624U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320276640.XU Active CN219477624U (en) | 2023-02-21 | 2023-02-21 | Scram control device and group charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219477624U (en) |
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2023
- 2023-02-21 CN CN202320276640.XU patent/CN219477624U/en active Active
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