CN213768275U - Emergency stop control circuit, device and charger - Google Patents
Emergency stop control circuit, device and charger Download PDFInfo
- Publication number
- CN213768275U CN213768275U CN202021415283.3U CN202021415283U CN213768275U CN 213768275 U CN213768275 U CN 213768275U CN 202021415283 U CN202021415283 U CN 202021415283U CN 213768275 U CN213768275 U CN 213768275U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- circuit
- charger
- operating mechanism
- emergency stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The utility model provides a quick-witted scram control circuit charges, device and machine charges. The quick-stop control circuit of the charger comprises: a circuit breaker electric operating mechanism and a circuit breaker; the circuit breaker electric operating mechanism and the circuit breaker are respectively connected with the input end of a power grid; the circuit breaker electric operating mechanism is connected with the emergency stop button, the first digital output of the charging control panel and the second digital output of the charging control panel; when the emergency stop button is pressed down or the charging control panel detects that the cabinet door of the charger is opened, the circuit breaker electric operating mechanism controls the circuit breaker to open, and the power supply input of the power grid input end is cut off. The utility model discloses adopting the electricity of circuit breaker to hold annex improvement circuit connection and separating brake control on direct current fills electric pile, getting rid of ac contactor, guaranteeing safe urgent power-off control simultaneously, the cost is reduced and simplified convenient circuit design and reduced the circuit consumption.
Description
Technical Field
The utility model relates to an emergency stop control technical field especially relates to an emergency stop control circuit, device and machine that charges.
Background
Along with the rapid development of the electric automobile industry, the direct current charging pile for the electric automobile is more and more used in urban households. And have many requirements of preventing the safety risk of electrocution to quick-witted scram function and the quick-witted protection of opening the door of charging, for example: when the charger is started and stopped suddenly or needs to be opened at a charging machine door (cabinet door) to cause exposure of a charged part on the condition that the charger has door opening protection, the integrated charging machine needs to cut off power supply input and direct current output of the charger at the same time, and the split type charging machine also needs to cut off direct current output of a corresponding charging terminal and can cut off power supply input of the charger at the same time. According to the emergency stop device of the charger, an alternating current contactor KM is used in an adopted main circuit, and when an emergency stop button is pressed down or the opening of a cabinet door of the charger is detected under an emergency condition, for example, the power on state of the alternating current contactor KM is changed into the power off state, so that the main contact of a breaker is controlled to be changed from a closed state to an open state, the input of a power supply is cut off, and the use safety of the charger is guaranteed. However, the existing ac contactor KM has high cost and large volume, and the structural design wiring and the like of the whole emergency stop control circuit connected into the main circuit are complicated, so that the development cost of the charger equipment and the cost of the cabinet body are increased, and the ac contactor KM should be applied to a circuit which is frequently closed or frequently opened, and is applied to an emergency stop control circuit which is a circuit that needs to be switched from a closed state to an open state to cope with an emergency situation at any time, and a main contact is always in the main circuit, so that the power consumption is increased.
Therefore, there is a need for a solution that can provide an emergency stop control circuit with lower cost, simpler circuit design and lower power consumption, an emergency stop control device using the circuit, and a charger applying the emergency stop control device.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model discloses to solve or solve at least partially how to need not alternating current contactor KM for the scram control device design of using on the machine that charges and guarantee simultaneously that the structure is simpler, the cost is lower and the lower technical problem of the scram control circuit of consumption. The utility model provides a solve above-mentioned problem and provide a quick-witted scram control circuit, device and machine charges.
In a first aspect, a charger emergency stop control circuit is provided, including: a circuit breaker electric operating mechanism and a circuit breaker; the circuit breaker electric operating mechanism and the circuit breaker are respectively connected with the input end of a power grid; the circuit breaker electric operating mechanism is connected with the emergency stop button, the first digital output of the charging control panel and the second digital output of the charging control panel; when the emergency stop button is pressed down or the charging control panel detects that the cabinet door of the charger is opened, the circuit breaker electric operating mechanism controls the circuit breaker to open, and the power supply input of the power grid input end is cut off.
Optionally, the circuit breaker electric operating mechanism with the circuit breaker is connected with the electric wire netting input respectively, specifically includes: the circuit breaker electric operating mechanism is connected with a first phase live wire L1 in three-phase live wires at the input end of the power grid and a zero wire N connected with the input end of the power grid; the circuit breaker is connected with a first phase live wire L1, a second phase live wire L2 and a third phase live wire L3 in three phase live wires at the input end of the power grid; and/or, circuit breaker electric operating mechanism connects emergency stop button, the first digital output of charging control panel and the second digital output of charging control panel, specifically includes: the public end and the opening end of the circuit breaker electric operating mechanism are respectively connected with the emergency stop button and the first digital output of the charging control board to form a loop in which the emergency stop button is connected with the first digital output of the charging control board in parallel; and the public end and the closing end of the electric operating mechanism of the circuit breaker are respectively connected with the second digital quantity output of the charging control board to form a loop.
Optionally, the circuit breaker electric operating mechanism further comprises: the motor M is connected with the control circuit; the circuit breaker also comprises a handle, and the main contact of the circuit breaker can be closed or opened by pushing the handle; the circuit breaker electric operating mechanism control the circuit breaker separating brake cuts off the power input of electric wire netting input specifically includes: the control circuit controls the motor M to operate; the motor M operates including: and the mechanical link mechanism is in driving connection, pushes the handle, changes the main contact of the circuit breaker from a closed state to an open state, and cuts off the power supply input from the input end of the power grid.
Optionally, the circuit breaker electric operating mechanism further comprises: passive nodes S1, S2, and S4 connected to the control circuit; the common terminal comprises the passive node S1; the switching-on end comprises the passive node S2; the opening end comprises the passive node S4; when the emergency stop button is pressed down or the charging control board detects that the cabinet door of the charger is opened, the passive nodes S1 and S4 are closed, and the control circuit is switched on; the control circuit controls the motor M to operate, and further comprises: after the control circuit is switched on, the control circuit provides an electric signal to the motor M to control the motor M to operate.
Optionally, when the emergency stop button is pressed down or the charging control board detects that the cabinet door of the charger is opened, the passive nodes S1 and S4 are closed, and the method specifically includes: two contacts of the emergency stop button are respectively connected to the passive nodes S1 and S4, when the emergency stop button is pressed, the contacts of the emergency stop button are changed from an open state to a closed state, and the passive nodes S1 and S4 are closed and switched on; when the charging control board detects that a cabinet door of a charger is opened, a contact of a relay K2 of the charging control board is changed into a closed state, a positive node of the first digital output is correspondingly connected to the passive node S1, a negative node of the first digital output is connected to the passive node S4, and the passive nodes S1 and S4 are closed and connected.
Optionally, the method further comprises: the travel switch is connected with the charging control board; the travel switch is positioned on the cabinet door, provides a switching value signal, and converts the switching value signal into a detection loop of the charging control board in series to be a high level and a low level; when the cabinet door is closed, the travel switch is in a closed state, and a low level is detected; when the cabinet door is opened, the travel switch is changed from a closed state to an open state, and a high level is detected; judging whether the cabinet door is closed or opened according to the high and low levels detected by the detection loop; when the detection circuit detects that the cabinet door is changed from closed to open, the relay K2 is switched on and the positive node and the negative node of the first digital quantity output are respectively connected to the passive nodes S1 and S4, and the passive nodes S1 and S4 are closed.
Optionally, the method further comprises: when the charger normally operates, the contact of the emergency stop button is in an open state, the main contact of the circuit breaker is in a closed state, the second digital output of the charging control board is in a closed state, and a three-phase live wire at the input end of the power grid is connected to a rectifying module to input a power supply for the rectifying module; wherein the second digital quantity output being in a closed state comprises: a positive node of the second digital quantity output is connected to the passive node S1, a negative node is connected to the passive node S2, the passive nodes S1 and S2 are closed; and/or, when the passive nodes S1 and S4 are closed and switched on, the positive and negative nodes of the second digital quantity output are switched off from the connection state of the passive nodes S1 and S2, and the passive nodes S1 and S2 are switched off.
Optionally, the method further comprises: the circuit breaker is a molded case circuit breaker; the circuit breaker electric control operating mechanism is an accessory of the molded case circuit breaker; the charging control panel is of an NPG-003A type, and whether the cabinet door is opened or not is detected through a main control chip; the charger is a direct current charging pile.
In a second aspect, a charger emergency stop control device is provided, including: the quick-stop control circuit of the charger is provided with any one of the quick-stop control circuits; wherein the circuit breaker electric operating mechanism is buckled above the circuit breaker; the circuit breaker top sets up the handle, the handle with circuit breaker electric operating mechanism's mechanical link mechanism electrical coupling or physical connection circuit breaker electric operating mechanism control during the circuit breaker separating brake, promote the handle will the main contact of circuit breaker becomes the off-state from the closed condition.
In a third aspect, a charger is provided, which includes: the quick-stop control device of the charger is provided.
The utility model discloses above-mentioned one or more technical scheme has following one or more beneficial effect at least:
the utility model provides an among the scheme, through getting rid of with high costs, bulky ac contactor KM and adopt through the annex that inserts the circuit breaker in the main circuit promptly circuit breaker electric operating mechanism, through being connected of this circuit breaker electric operating mechanism and emergency stop button, the output of two digital values of charging control panel, when taking place emergency for example emergency stop button presses or the charging control panel detects the machine cabinet door that charges and opens, provide the separating brake signal and arrive circuit breaker electric operating mechanism's control circuit, the motor that drive control circuit connects promotes the handle of circuit breaker and changes the main contact of circuit breaker into off-state by the on-state to cut off power supply input, in time deal with the safety protection condition of emergency. The technical scheme of the utility model, the circuit breaker annex of adoption, circuit breaker electric operating mechanism only several nodal connections and god simple structure itself promptly, when the access circuit realizes cutting off power supply 'S operation design circuit, the circuit is simple with low costs, and small, whole circuit, the device of use circuit, the design of the machine etc. that charges of application device is all uncomplicated, simplify as far as possible, and from single annex to whole equipment' S cost greatly reduced, and need not to use for a long time in the main contact inserts the return circuit of main circuit (like passive node S1, S2, S3), then need not to provide extra consumption, thereby greatly reduced the consumption of circuit itself.
Further, because the circuit breaker electric operating mechanism is still an accessory of the molded case circuit breaker, the cost is much lower than that of the alternating current contactor KM, the size is much smaller than that of the alternating current contactor KM, the size of the charger body is also reduced, and the cost is greatly reduced. And because alternating current contactor KM has been removed in the major loop, the consumption diminishes, can also improve the profit of charging station, and user's use is experienced well, reliability and security are high, with low costs.
Therefore, the utility model discloses ac input scheme ordinary relatively has removed ac contactor, has increased electric operating mechanism, satisfying under the prerequisite that can mark, effectively the cost is reduced to reduce the consumption and improve the income of charging station, strengthened the acceptance of operator to the trade of charging.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic circuit diagram of an embodiment of an emergency stop control circuit of a charger in the prior art;
fig. 2 is a schematic diagram of a circuit design structure of an embodiment of the battery charger scram control circuit of the present invention;
fig. 3 is a schematic wiring diagram of an electric operating mechanism of a circuit breaker used in an embodiment of the present invention;
fig. 4 is a schematic diagram of the digital output DO1 of the charging control board used in one embodiment of the present invention to control the opening;
fig. 5 is a schematic view of a locking structure of the circuit breaker electric operating mechanism and the circuit breaker used in an embodiment of the present invention
Fig. 6 is a schematic view of the matching of the electric operating mechanism of the circuit breaker and the longitudinal fastening section of the circuit breaker used in one embodiment of the present invention;
fig. 7 is a schematic diagram of a circuit breaker and a position of a handle thereof according to an embodiment of the present invention;
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and meticulously with reference to the accompanying drawings and examples, but it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that the terms "first", "second", and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, unless expressly stated or limited otherwise, the terms "connected" and "connected" are intended to be inclusive and mean, for example, that they may be directly connected or indirectly connected through intervening elements, or that they may be interconnected between two or more elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
An example of an emergency stop control circuit in an emergency stop control device applied by a charger in the prior art is shown in fig. 1, and an example of an ac input circuit of a dc charging pile generally adopts a design of a molded case circuit breaker and an ac contactor. The circuit breaker QF is connected to a three-phase live wire of a power grid input end of a power supply input provided by a charger, and specifically comprises the following steps: the main contact of the plastic case circuit breaker QF is respectively connected with a first phase live wire L1, a second phase live wire L2 and a third phase live wire L3 at the input end of a power grid. After the breaker QF is connected to the live wire at the input end of the power grid, the first phase live wire L1 of the three-phase live wire is connected to one positive/negative pin (node) of the first digital output DO1 of the charging control board, the other negative/positive pin (node) of the first digital output DO1 of the charging control board is sequentially connected to the emergency stop button and the alternating current contactor KM, and the zero line N of the alternating current contactor KM connected to the input end of the power grid forms a series circuit of the first digital output DO1 of the charging control board, the emergency stop button and the alternating current contactor KM.
Under the condition of normal operation, the main contact of the plastic case circuit breaker QF is in a closed state, the DO1 of the charging control board is in a closed state, and the emergency stop button is in a closed state; a coil of the alternating current contactor KM is electrified, and a main contact is closed; the power input of the power grid input end is connected to the rectifying module of the charging terminal to charge the terminal (such as a vehicle battery) needing to be charged.
In the case of normal operation, if an emergency situation is encountered, for example: when the emergency stop button is pressed, the contact of the emergency stop button is changed from a closed state to an open state, at the moment, the coil of the alternating current contactor KM is changed from a power-on state to a power-off state, the main contact is also changed from closed to open, and the power supply input at the input end of a power grid is cut off under the condition that the alternating current contactor KM opens the whole charging circuit;
under the condition of normal operation, if a cabinet door of a charger (such as a direct current charging pile and the like) is opened, and a charged device is exposed to easily cause electric shock danger, the state of a travel switch arranged at the position of the cabinet door is changed from closed to open, a charging control board connected with the travel switch acquires a switching value change signal (for example, the change from low level to high level) generated from the closing to the opening, the state of a first digital output DO1 of the charging control board is controlled to be changed from closed to open, a coil of an alternating current contactor KM is changed from an electrified state to a power-off state, a main contact is also changed from closed to open, and the power supply input of a power grid input end is also cut off under the condition that the alternating current contactor KM breaks the whole charging circuit;
under the condition of normal operation, if the load side of the molded case circuit breaker is short-circuited and overloaded, the molded case circuit breaker trips, the main contact is changed from a closed state to an open state, and the power supply input is cut off under the condition that the circuit breaker breaks the whole charging circuit.
However, since the ac contactor KM is disposed in the main circuit, the ac contactor KM has high cost and large volume, which increases the complexity of circuit arrangement, the overall design and the equipment cost, and the state change of disconnection occurs in the circuit due to emergency at any time, and the main contact is always in the main circuit, which leads to the power consumption of the whole circuit being too high, and reduces the benefit of the user in using the circuit. Therefore, a charger emergency stop control scheme which can meet emergency safety requirements to perform effective power supply input disconnection, simplify circuit design, reduce cost and reduce power consumption is needed.
The utility model discloses an embodiment, quick-witted emergency stop control device charges includes modified quick-witted emergency stop control circuit charges, and quick-witted emergency stop control device charges and uses the machine that charges, for example during direct current fills electric pile, deals with the emergency in the charging process. The emergency stop function requirement of the 6.9 th clause and the charger door opening protection function requirement of the 6.10.5 th clause in technical conditions of the non-vehicle-mounted conductive charger of the NB/T33001-2018 electric vehicle are met, and meanwhile, the circuit design and the structure can be simplified, the cost is reduced, and the power consumption is reduced.
The following combines fig. 2 to show the utility model discloses a quick-witted emergency stop control circuit's of charging embodiment circuit design structure schematic diagram, it is right the utility model discloses a quick-witted emergency stop control circuit's of charging design explains.
In one embodiment, the charger emergency stop control circuit at least comprises a circuit breaker electric operating mechanism and a circuit breaker. Specifically, the circuit breaker electric operating mechanism and the circuit breaker are respectively connected with the input end of a power grid. The circuit breaker electric operating mechanism is connected with the emergency stop button, the first digital output of the charging control panel and the second digital output of the charging control panel. When the emergency stop button is pressed down or the charging control panel detects that the cabinet door of the charger is opened, the circuit breaker electric operating mechanism controls the circuit breaker to open, and the power supply input of the power grid input end is cut off.
Specifically, the circuit breaker QF employed in the circuit: a switching device capable of switching on, carrying and switching off the current under the condition of a normal loop and switching on, carrying and switching off the current under the condition of an abnormal loop within a specified time; the function is to cut off and switch on the load circuit and cut off the fault circuit, prevent the accident from expanding and ensure the safe operation. Further, in this embodiment, the circuit breaker may employ a molded case circuit breaker QF: the circuit breaker is also called as a device type circuit breaker, all parts are sealed in a plastic shell, most of main parts are modularized and compact in structure, and can automatically cut off current after the current exceeds a trip setting, and the plastic shell is a shell which is made of a plastic insulator and used for isolating conductors and grounding metal parts. Here, for example: the GSM3 series plastic case circuit breaker can be seen in the structural schematic diagram of the plastic case circuit breaker with the handle shown in fig. 7.
Specifically, a charging control board used in the circuit, for example, an NPG-003A integrated circuit board developed by yu shi, includes a main control chip, 12 digital outputs DO, each of the digital outputs DO has positive and negative pins/nodes, and in this embodiment, two digital outputs, for example, a first digital output DO1 and a second digital output DO2, are used to respectively control opening (i.e., disconnection should correspond to an emergency stop condition) and closing (i.e., close connection should normally charge). The charging control panel of the NPG-003A type is used, is used in a large amount in a power exchanging station, a mobile charging vehicle and an advanced direct current charging pile, is stable and does not need to be developed again, can be directly connected into a main circuit for application, is convenient and fast in the process of circuit design, and simplifies the complexity of circuit design.
Specifically, the emergency stop button used in the circuit can be arranged outside the charger (such as a direct current charging pile) and can be pressed when an emergency occurs. The charging circuit of the charger is disconnected by pressing the emergency stop button by external force, and the input of the power supply is cut off.
Specifically, the electric operating mechanism of the circuit breaker is also called an electric operating mechanism (short for electric operation), and is an accessory of the circuit breaker, and the electric operating mechanism can be structurally connected with the circuit breaker in a buckling manner in a mode of a structural schematic diagram and a longitudinal section matching schematic diagram shown in fig. 5 and 6, is arranged above the circuit breaker, is used as an accessory of the circuit breaker, is small in height and size, and is matched with the size and the height of a handle of the circuit breaker. Further, an electric operating mechanism of CD2 model may be employed.
Specifically, the closing refers to the closing of the main contact of the circuit breaker, i.e., the normal input of the line of the power supply input, and the opening refers to the opening of the main contact of the circuit breaker, i.e., the opening of the line of the power supply input.
In one embodiment, referring to the circuit connection example shown in fig. 2 and the wiring node/terminal schematic of the electric operating mechanism shown in fig. 3, the circuit breaker electric operating mechanism and the circuit breaker are respectively connected to the grid input.
Specifically, the power grid input end that provides power supply input includes the three-phase live wire: the device comprises a first-phase live wire L1, a second-phase live wire L2, a third-phase live wire L3, a zero wire N and a grounding protection wire PE. The circuit breaker electric operating mechanism is connected with a first phase live wire L1 in a three-phase live wire at the input end of the power grid and is connected with a zero wire N at the input end of the power grid. For example, the node P1 or the node P2 in fig. 3 can be connected with the live line L1 or the neutral line N of the external power supply, and one node is connected with one line. The circuit breaker is connected with a first phase live wire L1, a second phase live wire L2 and a third phase live wire L3 in the three phase live wires at the input end of the power grid. Wherein, from the structure setting and the circuit connection cooperation of circuit breaker electric operating mechanism lock joint in the circuit breaker top, first looks live wire L1 is connected this circuit breaker electric operating mechanism back, is connected to the circuit breaker again, and circuit breaker electric operating mechanism inserts the live wire of electric wire netting input earlier.
In one embodiment, the circuit breaker electrical operating mechanism is further connected to an emergency stop button, a first digital output of the charge control board, and a second digital output of the charge control board. The method specifically comprises the following steps: the public end and the opening end of the circuit breaker electric operating mechanism are respectively connected with the emergency stop button and the first digital output of the charging control board to form a loop in which the emergency stop button is connected with the first digital output of the charging control board in parallel; and the public end and the closing end of the electric operating mechanism of the circuit breaker are respectively connected with the second digital quantity output of the charging control board to form a loop.
Taking the CD2 electric operating mechanism as an example, the electric operating mechanism for circuit breaker further includes, as shown in fig. 3, a schematic diagram of a connection node, and schematic diagrams of the electric operating mechanism for circuit breaker and its accessories shown in fig. 5, 6, and 7: the motor M is connected with the control circuit. The circuit breaker is provided with a handle, and the main contact of the circuit breaker can be closed or opened by pushing the handle. More specifically, the circuit breaker electrically-operated mechanism includes: and the passive nodes S1, S2 and S4 are connected with the control circuit, the passive nodes S1 and S4 are closed, namely the SB2 switching line control is switched on, and the passive nodes S1 and S2 are closed, so that the SB1 switching line control is switched on. Wherein the common terminal comprises the passive node S1; the switching-on end comprises the passive node S2; the opening end comprises the passive node S4.
Further, when the emergency stop button is pressed down or the charging control board detects that the cabinet door of the charger is opened, the passive nodes S1 and S4 are closed, the opening coil is electrified, and the control circuit is switched on. And switching on the control circuit to perform opening control, and mainly controlling the motor M to operate. The method specifically comprises the following steps: after the control circuit is switched on, the control circuit provides an electric signal to the motor M to control the motor M to operate.
Like this, circuit breaker electric operating mechanism can control the circuit breaker opens the floodgate, cuts off the power input of electric wire netting input, specifically: the control circuit controls the motor M to operate; the motor M operates, for example, a mechanical linkage that drives the connection, which pushes a handle of the circuit breaker to change a main contact of the circuit breaker from a closed state to an open state, cutting off a power source input from the grid input.
Still further, when the emergency stop button is pressed down or the charging control board detects that the cabinet door of the charger is opened, the passive nodes S1 and S4 are closed.
For example: two contacts of the emergency stop button are respectively connected to the passive nodes S1 and S4, when the emergency stop button is pressed, the contacts of the emergency stop button are changed from an open state to a closed state, and the passive nodes S1 and S4 are closed and switched on. The nodes S1 and S4 are closed, namely the opening coil is electrified, the control circuit controls the action of the connected motor M, the mechanical link mechanism is driven to push the handle of the coupled or physically connected breaker, the main contact is disconnected with the connected three-phase live wire, and the breaker is changed from a closed state to an open state, so that the input of a power supply is cut off.
For example: when the charging control board detects that a cabinet door of a charger is opened, a contact of a relay K2 of the charging control board is changed into a closed state, a positive node of the first digital output is correspondingly connected to the passive node S1, a negative node of the first digital output is connected to the passive node S4, and the passive nodes S1 and S4 are closed and connected.
In one embodiment, the charging control panel is opened for detecting the cabinet door of the charger, and the detection is mainly realized by detecting a switching value signal of a travel switch connected with the charging control panel. Specifically, the travel switch is located on the cabinet door, provides the switching value signal, and converts the switching value signal into the detection loop of the charging control board in series to a high level and a low level. When the cabinet door is closed, the travel switch is in a closed state, and a low level is detected; when the cabinet door is opened, the travel switch is changed from a closed state to an open state, and a high level is detected. Therefore, the high and low levels detected by the detection circuit (such as the detection circuit of the main control chip) of the charging control board judge whether the cabinet door is closed/closed or opened. As shown in fig. 4, in the example of the switching-off control of the main control chip of the charge control board and the first digital output DO1 thereof, when the detection circuit or the main control chip detects that the cabinet door is changed from off to on (the switching value signal from the travel switch is at a high level), the main control chip control pin MCU _ OUT10 is changed from a low level to a high level, the transistor Q2 is turned on, the coil of the relay K2 is energized, the contact of the relay K2 is closed, that is, the relay K2 is turned on, the positive node DO1+ and the negative node DO 1-of the first digital output DO1 are respectively connected to the passive nodes S1 and S4, and the passive nodes S1 and S4 are closed. For example: DO1+ is connected to S1 and DO 1-is connected to S4, so that the nodes S1 and S4 are closed, namely the opening coil is electrified, the control circuit controls the motion of the connected motor M, and drives the mechanical linkage mechanism to push the handle of the coupled or physically connected breaker to disconnect the main contact from the connected three-phase live wire, namely the breaker is changed from a closed state to an open state, so that the power supply input is cut off.
In one embodiment, if the charger emergency stop control circuit is in a normal charging operation state, that is, the charger is in a normal operation state, the contact of the emergency stop button is in an open state, the main contact of the circuit breaker is in a closed state, the second digital output DO2 of the charging control board is in a closed state, and a three-phase live wire at the input end of the power grid is connected to a rectifier module to input a power supply; wherein said second digital quantity output DO2 being in a closed state comprises: the positive node DO2+ of the second digital quantity output is accessed to the passive node S1, the negative node DO-is accessed to the passive node S2, and the passive nodes S1 and S2 are closed.
In one embodiment, the charger sudden stop control circuit is arranged in the charger sudden stop control device. Specifically, the circuit breaker electric operating mechanism is buckled above the circuit breaker; the circuit breaker top sets up the handle, the handle with circuit breaker electric operating mechanism's mechanical link mechanism electrical coupling or physical connection circuit breaker electric operating mechanism control during the circuit breaker separating brake, promote the handle will the main contact of circuit breaker becomes the off-state from the closed condition.
In one embodiment, the charger is provided with the charger emergency stop control device. Further, the charger is a direct current charger.
The following description the utility model discloses a quick-witted scram control circuit meets an example that emergency needs scram control's application scene when the machine that charges the work of charging, further understands the utility model discloses a structure and working method.
The power grid input end provides power supply input, and the circuit of the power grid input end is connected to the rectifying module of the charging terminal. In the line, the node P1 or P2 connected to the external power input of the circuit breaker accessory, i.e. the electric operating mechanism, is: the first phase live line of the three phase live lines L1, neutral line N. The common end of the electric operating mechanism such as a passive node S1 and the opening end such as a passive node S4 are respectively connected to two ends of a normally open contact of the emergency stop button; the common terminal such as the passive node S1 is connected to the charging control board DO1+, and the separating terminal such as the passive node S4 is connected to the charging control board DO 1-; the common terminal such as the passive node S1 is connected to the charging control board DO2+, and the closing terminal such as the passive node S2 is connected to the charging control board DO 2-. After the electric operating mechanism is connected to the power supply input line, three-phase live wires L1, L2 and L3 at the power grid input end of the power supply input line are all connected to a circuit breaker, and the circuit breaker is a molded case circuit breaker.
The electric operating mechanism is buckled above the circuit breaker as a circuit breaker accessory, the height of the electric operating mechanism can be just the height of a handle which can push the circuit breaker to control the contact to be closed or disconnected, and the length and the width of the electric operating mechanism can be matched with the length and the width of the circuit breaker. The handle with circuit breaker electric operating mechanism's mechanical link mechanism electrical coupling or physical connection (including butt etc.), can promote this handle can.
The charging machine is provided with electronic components such as a travel switch for monitoring a cabinet door switch, and provides a switching value signal for the charging control panel, and the main hollow chip of the charging control panel detects the switching value signal through a detection loop, namely, the condition of high and low levels, and determines whether the DO of the charging control panel is in switching-off or switching-on control.
When the emergency stop button is normally charged, the normally open contact of the emergency stop button is in a normal state, namely a disconnected state; the charging control board is controlled to be in a closing state, namely the line is closed, the positive node and the negative node of DO2 of the charging control board are connected to the nodes S1 and S2, and the nodes S1 and S2 are closed and connected; the positive and negative nodes of the charge control board DO1 are not accessed to the nodes S1 and S4, i.e., S1 and S4 are not closed; circuit breaker main contact closed state.
When an emergency stop condition occurs (power supply input needs to be emergently disconnected), if an emergency stop button is pressed down, the normally open contacts are closed, namely the nodes S1 and S4 are connected, a loop is formed on the closed normally open contacts, the opening coil of the electric operating mechanism is electrified, the control circuit controls the action of the connected motor M, for example, the mechanical link mechanism pushes the handle of the molded case circuit breaker, so that the main contact of the molded case circuit breaker is changed from a closed state to an open state, the opening control of the molded case circuit breaker is realized, and the power supply input is cut off; if the door of the cabinet is opened, the detection circuit of the main control chip detects that a switching value signal transmitted to the charging control board by an electric part travel switch outside the charging pile is high level, namely, the door is switched to be suddenly opened from closed, the control pin MCU _ OUT10 of the main control chip is switched from low level to high level, the triode Q2 is conducted, then the coil of the relay K2 is electrified, the contact of the relay K2 is closed, the first digital quantity for controlling opening is output to a positive node DO1+ of the DO1 and connected to a node S1 and a negative node DO 1-connected to the node S4, so that the nodes S1 and S4 are connected to form a circuit through closing, the opening coil of the electric operating mechanism is electrified, the control circuit controls the connected motor M to act, for example, the handle of the molded case circuit breaker is pushed by the mechanical link mechanism, so that the main contact of the molded case circuit breaker is switched from a closed state to an open state, and the opening control of the molded case circuit breaker is realized, the power supply input is cut off.
In addition, the nodes S1 and S2 can be provided with a manual operation button SB1 which is pressed to be in a closing control state; the nodes S1 and S4 may also be provided with a manual operation button SB2, which is pressed to be in the brake-off control state.
The utility model also provides a quick-witted scram controlling means charges. The emergency stop control circuit comprises the charger emergency stop control circuit, a circuit breaker electric operating mechanism and a circuit device, wherein the circuit breaker electric operating mechanism is buckled above the circuit breaker; further, a handle is arranged above the circuit breaker, the handle is electrically coupled or physically connected with a mechanical linkage mechanism of the electric operating mechanism of the circuit breaker, and when the electric operating mechanism of the circuit breaker controls the opening of the circuit breaker, the handle is pushed to change a main contact of the circuit breaker from a closed state to an open state; and the emergency stop control circuit further comprises a charging control panel, an emergency stop button and a travel switch connected with the charging control panel, wherein the travel switch is arranged on a cabinet door of the charger. Further, the charger is a direct current charging pile.
The utility model also provides a machine charges has aforementioned quick-witted scram controlling means charges.
The embodiment of the utility model provides an in, remove ac contactor in the circuit and add moulded case circuit breaker's annex promptly electric operating mechanism, because electric operating mechanism is moulded case circuit breaker's annex, for ac contactor's with low costs a lot, for ac contactor's volume is much little, the volume of the cabinet body diminishes, and then the cost also step-down to, because ac contactor has been removed to the major loop, the consumption diminishes, and then has improved the income of charging station. Therefore, the power supply input is ensured to be cut off emergently under the emergency stop control condition in a safe way, the circuit design is simplified, the cost is reduced, the equipment volume is reduced, the power consumption is reduced, the user income is increased, and the user experience is improved.
The present invention is not limited to the above-mentioned preferred embodiments, and other products in various forms, which can be obtained by those skilled in the art with the benefit of the present invention, can be made in any shape or structure, and all technical solutions identical or similar to the present invention fall within the protection scope of the present invention.
Claims (10)
1. A charger scram control circuit is characterized by comprising:
a circuit breaker electric operating mechanism and a circuit breaker;
the circuit breaker electric operating mechanism and the circuit breaker are respectively connected with the input end of a power grid;
the circuit breaker electric operating mechanism is connected with the emergency stop button, the first digital output of the charging control panel and the second digital output of the charging control panel;
when the emergency stop button is pressed down or the charging control panel detects that the cabinet door of the charger is opened, the circuit breaker electric operating mechanism controls the circuit breaker to open, and the power supply input of the power grid input end is cut off.
2. The charger scram control circuit of claim 1, characterized in that,
the circuit breaker electric operating mechanism with the circuit breaker is connected with the electric wire netting input respectively, specifically includes:
the circuit breaker electric operating mechanism is connected with a first phase live wire L1 in three-phase live wires at the input end of the power grid and a zero wire N connected with the input end of the power grid;
the circuit breaker is connected with a first phase live wire L1, a second phase live wire L2 and a third phase live wire L3 in three phase live wires at the input end of the power grid;
and/or the presence of a gas in the gas,
the circuit breaker electric operating mechanism connects scram button, the first digital output of charging control panel and the second digital output of charging control panel, specifically includes:
the public end and the opening end of the circuit breaker electric operating mechanism are respectively connected with the emergency stop button and the first digital output of the charging control board to form a loop in which the emergency stop button is connected with the first digital output of the charging control board in parallel;
and the public end and the closing end of the electric operating mechanism of the circuit breaker are respectively connected with the second digital quantity output of the charging control board to form a loop.
3. The charger scram control circuit of claim 2, characterized in that,
the circuit breaker electric operating mechanism further includes: the motor M is connected with the control circuit;
the circuit breaker also comprises a handle, and the main contact of the circuit breaker can be closed or opened by pushing the handle;
the circuit breaker electric operating mechanism control the circuit breaker separating brake cuts off the power input of electric wire netting input specifically includes:
the control circuit controls the motor M to operate;
the motor M operates including: and the mechanical link mechanism is in driving connection, pushes the handle, changes the main contact of the circuit breaker from a closed state to an open state, and cuts off the power supply input from the input end of the power grid.
4. The charger scram control circuit of claim 3, characterized in that,
the circuit breaker electric operating mechanism further includes: passive nodes S1, S2, and S4 connected to the control circuit;
the common terminal comprises the passive node S1;
the switching-on end comprises the passive node S2;
the opening end comprises the passive node S4;
when the emergency stop button is pressed down or the charging control board detects that the cabinet door of the charger is opened, the passive nodes S1 and S4 are closed, and the control circuit is switched on;
the control circuit controls the motor M to operate, and further comprises:
after the control circuit is switched on, the control circuit provides an electric signal to the motor M to control the motor M to operate.
5. The charger emergency stop control circuit of claim 4, wherein when the emergency stop button is pressed or the charging control board detects that a cabinet door of the charger is opened, the passive nodes S1 and S4 are closed, and the charger emergency stop control circuit specifically comprises:
two contacts of the emergency stop button are respectively connected to the passive nodes S1 and S4, when the emergency stop button is pressed, the contacts of the emergency stop button are changed from an open state to a closed state, and the passive nodes S1 and S4 are closed and switched on;
when the charging control board detects that a cabinet door of a charger is opened, a contact of a relay K2 of the charging control board is changed into a closed state, a positive node of the first digital output is correspondingly connected to the passive node S1, a negative node of the first digital output is connected to the passive node S4, and the passive nodes S1 and S4 are closed and connected.
6. The charger scram control circuit of claim 5, characterized by further comprising:
the travel switch is connected with the charging control board;
the travel switch is positioned on the cabinet door, provides a switching value signal, and converts the switching value signal into a detection loop of the charging control board in series to be a high level and a low level;
when the cabinet door is closed, the travel switch is in a closed state, and a low level is detected;
when the cabinet door is opened, the travel switch is changed from a closed state to an open state, and a high level is detected;
judging whether the cabinet door is closed or opened according to the high and low levels detected by the detection loop;
when the detection circuit detects that the cabinet door is changed from closed to open, the relay K2 is switched on and the positive node and the negative node of the first digital quantity output are respectively connected to the passive nodes S1 and S4, and the passive nodes S1 and S4 are closed.
7. The charger scram control circuit according to any one of claims 4 to 6, characterized by further comprising:
when the charger normally operates, the contact of the emergency stop button is in an open state, the main contact of the circuit breaker is in a closed state, the second digital output of the charging control board is in a closed state, and a three-phase live wire at the input end of the power grid is connected to a rectifying module to input a power supply for the rectifying module; wherein the second digital quantity output being in a closed state comprises: a positive node of the second digital quantity output is connected to the passive node S1, a negative node is connected to the passive node S2, the passive nodes S1 and S2 are closed;
and/or the presence of a gas in the gas,
when the passive nodes S1 and S4 are closed on, the positive and negative nodes of the second digital quantity output are open to the connected state with the passive nodes S1 and S2, and the passive nodes S1 and S2 are open.
8. The quick-stop control circuit for the charger according to claim 1, further comprising:
the circuit breaker is a molded case circuit breaker;
the circuit breaker electric control operating mechanism is an accessory of the molded case circuit breaker;
the charging control panel is of an NPG-003A type, and whether the cabinet door is opened or not is detected through a main control chip;
the charger is a direct current charging pile.
9. The utility model provides a quick-witted scram controlling means charges which characterized in that includes:
the emergency stop control circuit of the charger according to any one of claims 1 to 8;
wherein the circuit breaker electric operating mechanism is buckled above the circuit breaker;
the circuit breaker top sets up the handle, the handle with circuit breaker electric operating mechanism's mechanical link mechanism electrical coupling or physical connection circuit breaker electric operating mechanism control during the circuit breaker separating brake, promote the handle will the main contact of circuit breaker becomes the off-state from the closed condition.
10. A charger, characterized by, includes:
the quick-stop control device of the charger according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021415283.3U CN213768275U (en) | 2020-07-17 | 2020-07-17 | Emergency stop control circuit, device and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021415283.3U CN213768275U (en) | 2020-07-17 | 2020-07-17 | Emergency stop control circuit, device and charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213768275U true CN213768275U (en) | 2021-07-23 |
Family
ID=76866495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021415283.3U Active CN213768275U (en) | 2020-07-17 | 2020-07-17 | Emergency stop control circuit, device and charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213768275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024375A (en) * | 2021-11-25 | 2022-02-08 | 桔充充(杭州)新能源有限公司 | Fault self-protection circuit and method for wireless charging system of two-wheeled electric vehicle |
-
2020
- 2020-07-17 CN CN202021415283.3U patent/CN213768275U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024375A (en) * | 2021-11-25 | 2022-02-08 | 桔充充(杭州)新能源有限公司 | Fault self-protection circuit and method for wireless charging system of two-wheeled electric vehicle |
| CN114024375B (en) * | 2021-11-25 | 2024-02-13 | 桔充充(杭州)新能源有限公司 | Fault self-protection circuit and method for wireless charging system of two-wheeled electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201733058U (en) | Universal breaker power-on automatic switching on device | |
| CN213768275U (en) | Emergency stop control circuit, device and charger | |
| CN102570513A (en) | Control assembly with mutual exclusion of charge and discharge switches of cell management system | |
| WO2015071722A1 (en) | Vehicle and charging and discharging system using vehicle | |
| CN105958437A (en) | Control circuit for achieving decompression tripping of circuit breaker through external loop | |
| CN106655898A (en) | Electric reactor cabinet control circuit | |
| CN203368014U (en) | Soft start protection device and compressor diagnosis protection device comprising same | |
| CN213782887U (en) | Energy storage converter with automatic protection function | |
| CN211183516U (en) | Power distribution terminal power supply system | |
| CN210161933U (en) | Direct current-to-direct current integrated charger | |
| CN202696285U (en) | Boundary switch controller | |
| CN203466121U (en) | Large current output intelligence control device used for electromagnetic thrust actuating mechanism | |
| EP3038226A1 (en) | System and method for supplying electric power | |
| CN111196159A (en) | Low-voltage maintenance switch device, control method and vehicle | |
| CN212515418U (en) | Pendant and system of circuit breaker | |
| CN219812092U (en) | Automatic phase sequence motor protection control box | |
| CN205911265U (en) | Circuit breaker electric operating mechanism circuit | |
| CN210092959U (en) | On-line AC uninterrupted power supply system | |
| CN112054790B (en) | Time delay switching device, power supply system and control method of time delay switching device | |
| CN114421825B (en) | Logic control method and storage medium for series autotransformer starting motor | |
| CN218733306U (en) | Charger baby | |
| CN211062660U (en) | High-power relay control device | |
| CN216530007U (en) | Battery cabinet system and uninterrupted power source's start control equipment | |
| CN215120148U (en) | Battery collection flow cabinet and energy storage system | |
| CN211720327U (en) | Dual-power automatic switching control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |