CN113972114A - Circuit breaker control device and circuit breaker - Google Patents
Circuit breaker control device and circuit breaker Download PDFInfo
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- CN113972114A CN113972114A CN202010728524.8A CN202010728524A CN113972114A CN 113972114 A CN113972114 A CN 113972114A CN 202010728524 A CN202010728524 A CN 202010728524A CN 113972114 A CN113972114 A CN 113972114A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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Abstract
The invention provides a circuit breaker control device and a circuit breaker, which relate to the technical field of low-voltage electrical switches and comprise the following components: the first terminal is connected with the travel switch, a normally closed contact of the travel switch is connected with a normally closed contact of the first change-over switch, the first change-over switch and the second change-over switch are respectively connected with the action component, and a normally closed contact of the second change-over switch is connected with the second terminal; the normally open contact of the travel switch is connected with the normally open contact of the second change-over switch, and the normally open contact of the first change-over switch is connected with the second terminal and used for controlling the action assembly to keep moving in the same direction when the first terminal and the second terminal receive positive and negative electric signals or negative and positive electric signals. The circuit breaker is characterized in that a power supply circuit and a control circuit in the existing circuit breaker are integrated, so that the circuit layout quantity of the circuit breaker is reduced, the circuit is simplified, and the circuit layout difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of low-voltage electrical switches, in particular to a circuit breaker control device and a circuit breaker.
Background
With the rapid development of economy, the living standard of people is rapidly improved, and the safety of household electricity utilization is required to be higher. The small-sized circuit breaker can be installed on a terminal distribution line because of small size. Meanwhile, the circuit can be connected, carried and disconnected under the condition of normal or abnormal circuit, and the circuit and the electrical equipment are effectively protected. With the deep research on the circuit breaker, the technology for remotely controlling the opening and closing of the circuit breaker is gradually matured.
When the existing remote circuit breaker realizes remote action, a power supply circuit is required to be connected with a motor to supply power for the circuit breaker. In order to realize remote action, a control circuit is also needed to control the motor to rotate so as to drive the operating mechanism to complete the action of the circuit breaker. However, the power supply line and the control line are respectively arranged, so that the internal wiring of the whole circuit breaker is complicated.
Disclosure of Invention
The invention aims to provide a circuit breaker control device and a circuit breaker aiming at the defects in the prior art, so as to solve the problem that the existing remote circuit breaker is complicated in wiring.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in one aspect of the embodiments of the present invention, a circuit breaker control apparatus is provided, including: the travel switch comprises a first terminal, a second terminal, a travel switch, a first change-over switch, a second change-over switch and an action component; the first terminal is connected with the travel switch, a normally closed contact of the travel switch is connected with a normally closed contact of the first change-over switch, the first change-over switch and the second change-over switch are respectively connected with the action component, and a normally closed contact of the second change-over switch is connected with the second terminal; the normally open contact of the travel switch is connected with the normally open contact of the second change-over switch, and the normally open contact of the first change-over switch is connected with the second terminal and used for controlling the action assembly to keep moving in the same direction when the first terminal and the second terminal receive positive and negative electric signals or negative and positive electric signals.
Optionally, the first change-over switch and the second change-over switch form a ganged switch.
Optionally, the linkage switch is a polarity-triggered relay.
Optionally, the LED lamp further comprises a diode; the linkage switch is a non-polarity trigger relay; the non-polarity trigger relay is connected with the diode in series.
Optionally, the first switch is a first relay; the second change-over switch is a second relay.
Optionally, a master control switch is arranged between the second terminal and the travel switch.
Optionally, the action assembly is connected to the travel switch, and is configured to switch the on/off state of the travel switch when the action assembly is in an opening state or a closing state.
Optionally, the action assembly includes a rotary driver and an operating mechanism in transmission connection with a rotary output end of the rotary driver; the first change-over switch and the second change-over switch are respectively connected with the rotary driver and used for driving the operating mechanism to be in an opening or closing state when the rotary driver rotates.
Optionally, the operating mechanism is in meshing transmission with the rotary output end of the rotary driver.
In another aspect of the embodiments of the present invention, there is provided a circuit breaker including any one of the above-described circuit breaker control apparatuses.
The beneficial effects of the invention include:
the invention provides a circuit breaker control device, which comprises two terminals, namely a first terminal and a second terminal, wherein the two terminals can be connected with an external control system so as to receive positive and negative electric signals or negative and positive electric signals fed by the control system under different conditions. Then, the first terminal is connected with the travel switch, a normally closed contact of the travel switch is connected with a normally closed contact of the first change-over switch, the first change-over switch and the second change-over switch are respectively connected with the action component, and a normally closed contact of the second change-over switch is connected with the second terminal; and a normally open contact of the travel switch is connected with a normally open contact of the second change-over switch, and a normally open contact of the first change-over switch is connected with the second terminal. Therefore, after the first terminal and the second terminal receive opposite positive and negative electric signals in different time periods, the action component always keeps moving in the same direction when being switched on, namely always keeps moving towards one direction by correspondingly switching contact connection positions of the travel switch, the first change-over switch and the second change-over switch. Thereby actuating the actuating assembly in the circuit breaker. The power supply to the action assembly is realized by only providing the first terminal and the second terminal, and the action of the action assembly is controlled by the accessed positive and negative electric signals. The circuit breaker is characterized in that a power supply circuit and a control circuit in the existing circuit breaker are integrated, so that the circuit layout quantity of the circuit breaker is reduced, the circuit is simplified, and the circuit layout difficulty is reduced.
The invention also provides a circuit breaker, wherein the circuit breaker control device is applied to the circuit breaker, and the action components can always keep the same-direction movement when the circuit breaker is switched on by corresponding contact switching-on positions of the switching travel switch, the first change-over switch and the second change-over switch, so that after the circuit breaker is switched from closing to opening, when the circuit breaker is continuously required to be closed, the action components can still move in the same direction, and then the circuit breaker can be closed again. The circuit quantity in the inside of effectual reduction circuit breaker reduces the circuit in the circuit breaker and lays the degree of difficulty, is favorable to the miniaturization of circuit breaker.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a circuit breaker control device according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a circuit breaker control apparatus according to an embodiment of the present invention;
fig. 3 is a third schematic structural diagram of a circuit breaker control apparatus according to an embodiment of the present invention;
fig. 4 is a fourth schematic structural diagram of a circuit breaker control device according to an embodiment of the present invention;
fig. 5 is a fifth schematic structural diagram of a circuit breaker control device according to an embodiment of the present invention.
Icon: 100-an operating mechanism; 101-a deflector rod; k1-nonpolarity trigger relay; k2-polarity trigger relay; m-a rotary drive; s1-a travel switch; s2-a master control switch; p1 — first terminal; p2-second terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
With the improvement of the safety level of electricity utilization, the use of low-voltage circuit breakers is more and more common. When the existing remote breaker realizes remote action, a power line is firstly needed to supply basic power for a motor in the existing remote breaker. In addition, in order to implement remote control, a control circuit is correspondingly connected to the driving motor, so that the motor can implement corresponding instructions, such as forward rotation or reverse rotation, through control instructions of the control circuit. However, the power supply circuit and the control circuit need to be separately arranged, so that the connecting circuit inside the circuit breaker is relatively complex. This application provides a circuit breaker controlling means and circuit breaker based on this basis, when utilizing first terminal and second terminal to provide the power for the motor, still can provide control command for it for the motor rotates with the same direction all the time, and then simplifies the inside circuit of circuit breaker and lays, improves the accuracy of control.
In one aspect of the embodiments of the present invention, a circuit breaker control apparatus is provided, including: a first terminal P1, a second terminal P2, a travel switch S1, a first change-over switch, a second change-over switch and an action component; the first terminal P1 is connected with a travel switch S1, a normally closed contact of the travel switch S1 is connected with a normally closed contact of a first change-over switch, the first change-over switch and a second change-over switch are respectively connected with the action component, and a normally closed contact of the second change-over switch is connected with a second terminal P2; the normally open contact of the travel switch S1 is connected with the normally open contact of the second change-over switch, the normally open contact of the first change-over switch is connected with the second terminal P2, and the control action component keeps moving in the same direction when the first terminal P1 and the second terminal P2 receive positive and negative electric signals or negative and positive electric signals.
Illustratively, the entire circuit breaker control device includes two terminals, namely a first terminal P1 and a second terminal P2, which can be connected to an external control system so as to receive positive and negative electrical signals or negative and positive electrical signals fed by the control system under different conditions. Then, the first terminal P1 is connected with the travel switch S1, the normally closed contact of the travel switch S1 is connected with the normally closed contact of the first change-over switch, the first change-over switch and the second change-over switch are respectively connected with the action component, and the normally closed contact of the second change-over switch is connected with the second terminal P2; the normally open contact of the travel switch S1 is connected to the normally open contact of the second switch, and the normally open contact of the first switch is connected to the second terminal P2. At this time, when the external control system feeds a positive signal to the first terminal P1 and a negative signal to the second terminal P2, the current flows from the first terminal P1 to the normally closed contact of the travel switch S1 to the normally closed contact of the first switch to the action element to the normally closed contact of the second switch to the second terminal P2.
Before an external control system feeds a positive electric signal of the second terminal P2 and a negative electric signal of the first terminal P1, the travel switch S1, the first change-over switch and the second change-over switch are controlled (either individually or synchronously controlled by a control circuit arranged in parallel with the action component), namely the second terminal P2 is communicated through the normally open contact of the first change-over switch, and after the action component, the normally open contact of the second change-over switch is communicated with the first terminal P1 through the normally open contact of the travel switch S1. At this time, the current flows from the second terminal P2 to the normally open contact of the first switch to the actuating element to the normally open contact of the second switch to the normally open contact of the travel switch S1 to the first terminal P1. Therefore, after the first terminal P1 and the second terminal P2 receive opposite positive and negative electric signals in different time periods, the action component always keeps moving in the same direction when being switched on, namely always keeps moving towards one direction through corresponding contact switch-on positions of the change-over travel switch S1, the first change-over switch and the second change-over switch. It should be noted that, the action assemblies in the present application keep moving in the same direction, that is, when two different electrical signals are given to the action assemblies, the corresponding moving directions of the action assemblies are in the same direction.
For example: when the applied forward/reverse electric signal is a forward/reverse voltage, as shown in fig. 1, when the contacts 3 and 5 of the stroke switch S1 are turned on, the contacts 7 and 8 of the first change-over switch are turned on, and the contacts 9 and 11 of the second change-over switch are turned on, and at this time, a positive voltage is input to the first terminal P1 by the external control system, and a negative voltage is input to the second terminal P2, a current returns to the second terminal P2 through the first terminal P1, the contacts 3 and 5 of the stroke switch S1, the contacts 7 and 8 of the first change-over switch, the operation member, and the contacts 9 and 11 of the second change-over switch, thereby forming a circuit in which the entire circuit is connected. At this time, the corresponding moving direction of the motion assembly is the direction indicated by the arrow in fig. 1 (which is only a schematic direction and does not represent the actual moving direction of the motion assembly), that is, when the current flows through the motion assembly, the current flows from the first switch to the second switch.
As shown in fig. 2, the on states of the stroke switch S1, the first changeover switch, and the second changeover switch are switched so that the contacts 3 and 4 of the stroke switch S1 are on, the contacts 6 and 8 of the first changeover switch are on, and the contacts 9 and 10 of the second changeover switch are on. At this time, when the external control system inputs a negative voltage to the first terminal P1 and a positive voltage to the second terminal P2, the current returns to the first terminal P1 through the second terminal P2, the contacts 6 and 8 of the first switch, the operating element, the contacts 9 and 10 of the second switch, and the contacts 4 and 3 of the stroke switch S1, thereby forming a circuit in which the entire circuit is connected. At this time, the corresponding moving direction of the motion assembly is the direction indicated by the arrow in fig. 2 (which is only a schematic direction and does not represent the actual moving direction of the motion assembly), that is, when the current flows through the motion assembly, the current still flows from the first switch to the second switch. Therefore, when opposite positive and negative electric signals are respectively fed in different time periods, the action assembly can always move in one direction, and the action assembly in the circuit breaker acts. The power supply to the action assembly is realized by only providing the first terminal and the second terminal, and the action of the action assembly is controlled by the accessed positive and negative electric signals. The circuit breaker is characterized in that a power supply circuit and a control circuit in the existing circuit breaker are integrated, so that the circuit layout quantity of the circuit breaker is reduced, the circuit is simplified, and the circuit layout difficulty is reduced.
Optionally, the first change-over switch and the second change-over switch form a ganged switch.
For example, as shown in fig. 1, the first switch and the second switch may constitute a ganged switch, i.e. the switch actions of the two switches are performed synchronously. Therefore, when different contacts of the first change-over switch and the second change-over switch are switched on, the actions of the first change-over switch and the second change-over switch are consistent. The complicated operation during switching is avoided, and meanwhile, the stability during switching is also improved.
Optionally, the linkage switch is a polarity trigger relay K2.
For example, as shown in fig. 3 and 4, the linkage switch may be a polarity trigger relay K2. Correspondingly, the contacts 6, 7 and 8 of the first change-over switch and the contacts 9, 10 and 11 of the second change-over switch in the ganged switch are respectively switch contacts positioned on circuits on two sides of the action component in the polarity triggering relay K2. The control circuit of the polarity triggering relay K2 may be provided separately, or may be incorporated in a control circuit of an operation member as described below.
Correspondingly, as shown in fig. 3 and 4, the control circuit of the polarity-triggered relay K2 may be incorporated into the control circuit of the aforementioned operating component, and at this time, the electromagnetic part of the polarity-triggered relay K2 is connected to the first terminal P1 and the second terminal P2, respectively, that is, a loop is formed by the electromagnetic part of the first terminal P1 and the polarity-triggered relay K2, and the second terminal P2. Because the permanent magnet steel in the polarity triggering relay K2 is always magnetic, the polarity triggering relay has the characteristic of bistable state, namely the opening state and the closing state can keep the stable state without external factors. Therefore, the integration and automation of control can be effectively improved, and the complexity of circuit layout is reduced. Meanwhile, the switching contacts and the action components of the first switch and the second switch need to act, and the first switch and the second switch are consistent and synchronous.
For example: as shown in fig. 3, when the first terminal P1 is connected to a positive voltage and the second terminal P2 is connected to a negative voltage, the current is divided into two parts, one part flows into the electromagnetic part in the polarity triggered relay K2 through the first terminal P1 and flows back to the second terminal P2. The other part is returned to the second terminal P2 via the 3, 5 contacts of the stroke switch S1, the 7, 8 contacts of the contact section in the polarity trigger relay K2, the actuating member, and the 9, 11 contacts of the contact section in the polarity trigger relay K2. After the current flows through the electromagnetic portion of the polarity trigger relay K2 and the second terminal P2 to form a loop, if the contacts 7 and 8 and the contacts 9 and 11 in the polarity trigger relay K2 are already closed at this time, the contacts do not operate and remain closed. If at this point the 6, 8 and 9, 10 contacts in polarity triggered relay K2 are on, it will switch states so that the 7, 8 and 9, 11 contacts are on.
As shown in fig. 4, when the first terminal P1 is connected to a negative voltage and the second terminal P2 is connected to a positive voltage, the current is also divided into two parts, one part flows into the electromagnetic part in the polarity triggered relay K2 through the second terminal P2 and flows back to the first terminal P1. The other part is returned to the first terminal P1 through the 6, 8 contacts of the contact part in the polarity trigger relay K2, the action assembly, the 9, 10 contacts of the contact part in the polarity trigger relay K2, and the 4, 3 contacts of the stroke switch S1. It should be noted that, after the current flows through the electromagnetic part of the polarity triggering relay K2 and the first terminal P1 to form a loop, if at this time, the contacts 10 and 9 and the contacts 8 and 6 in the polarity triggering relay K2 are already turned on, they do not operate and remain turned on. If at this time the contacts 11, 9 and 8, 7 in the polarity triggered relay K2 are on, it will switch states so that the contacts 10, 9 and 8, 6 are on.
Optionally, the LED lamp further comprises a diode; the linkage switch is a non-polarity trigger relay K1; the non-polarity trigger relay K1 is connected in series with a diode.
For example, when the ganged switch is a non-polar trigger relay K1, i.e. there is no permanent magnetic steel in the relay, it may be a separate circuit to control it and switch the contact state. Meanwhile, it may be incorporated into the control circuit of the aforementioned operation component.
Correspondingly, as shown in fig. 1 and 2, the control circuit of the nonpolar trigger relay K1 may be incorporated into the control circuit of the aforementioned action component, and at this time, in order to avoid that the nonpolar trigger relay K1 is susceptible to interference from external factors in a monostable state, which may cause misoperation of the nonpolar trigger relay K1 when different positive and negative voltages are applied, a diode that is unidirectionally conducted may be further provided. The second terminal P2 is connected to the electromagnetic part of the non-polarity trigger relay K1, the electromagnetic part of the non-polarity trigger relay K1 is connected to the diode, and the diode is connected to the first terminal P1, that is, a loop is formed by the second terminal P2, the electromagnetic part of the non-polarity trigger relay K1, the diode, and the first terminal P1. By utilizing the unidirectional conductivity of the diode, the current of the misoperation can be cut off, so that when the nonpolar trigger relay K1 is not needed to operate, the diode is used for cutting off the current, and the circuit cannot be formed. Use nonpolarity to trigger relay K1 can effectual reduction this application circuit breaker controlling means's manufacturing cost, when the cooperation diode can realize only being controlled synchronization action by same signal of telecommunication, can also effectually avoid nonpolarity to trigger relay K1's maloperation.
For example: as shown in fig. 1, when the first terminal P1 is connected to a positive voltage and the second terminal P2 is connected to a negative voltage, the current is divided into two parts, and one part is cut off when passing through the diode, and at this time, the electromagnetic part of the non-polarity trigger relay K1 is not energized, and the switch is kept in a normally closed state. The other part is returned to the second terminal P2 via the 3, 5 contacts of the stroke switch S1, the 7, 8 contacts of the contact section in the non-polarity-triggering relay K1, the actuating member, and the 9, 11 contacts of the contact section in the non-polarity-triggering relay K1.
As shown in fig. 2, when the first terminal P1 is connected to a negative voltage and the second terminal P2 is connected to a positive voltage, the current is also divided into two parts, one part flows into the electromagnetic part in the non-polarity trigger relay K1 through the second terminal P2 and flows back to the first terminal P1 through the diode, and at this time, the electromagnetic part in the non-polarity trigger relay K1 is electrified, and the contacts 6 and 8 are controlled to be connected and the contacts 9 and 10 are controlled to be connected. The other part is returned to the first terminal P1 through the 6, 8 contacts of the contact part in the nonpolar trigger relay K1, the action assembly, the 9, 10 contacts of the contact part in the nonpolar trigger relay K1, and the 4, 3 contacts of the travel switch S1.
Optionally, the first switch is a first relay; the second change-over switch is a second relay.
For example, when the first changeover switch and the second changeover switch are separately controlled, the first changeover switch may be made to be a first relay; the second change-over switch is a second relay. I.e. the contact positions in the first and second change-over switches are switched by means of separate control circuits. It should be noted that, when the two are separately controlled, mutual interference can be avoided, and at the same time, the control circuit of the action assembly can be communicated only by switching the states of the two, so that the safety of the circuit breaker is further improved, and the possibility of accidental switching-on is avoided. Meanwhile, the first relay and the second relay can be both non-polarity trigger relay K1 or polarity trigger relay K2. In addition, the first relay can be a non-polarity trigger relay K1, and the second relay can be a polarity trigger relay K2, or vice versa. The present application is not limited thereto.
Optionally, a master control switch S2 is disposed between the second terminal P2 and the travel switch S1.
For example, in order to further improve the safety of the circuit breaker control device, a master control switch S2 may be further provided on the trunk of the control device. That is, the master switch S2 is directly connected to the first terminal P1 or the second terminal P2, so that the whole circuit breaker control device is turned off by turning off the master switch S2, that is, the actuating assembly is turned off, at this time, the actuating assembly cannot continue to move in the same direction under the action of the electrical signal, and at this time, the circuit breaker cannot be turned on. Therefore, the situation that the circuit breaker is in a manual mode or an automatic mode disconnection state, due to the fact that information is asynchronous or misoperation is caused, the circuit breaker is remotely controlled to be switched on, and potential safety hazards are generated. For example, as shown in fig. 1 to 4, the overall control switch S2 is provided at a position close to the second terminal P2, and the entire control circuit and the second terminal P2 can be disconnected by turning it off. As shown in fig. 5, the master switch S2 is disposed above the actuating assembly, and may be a hall switch or a micro switch. Correspondingly, the travel switch S1 may also be a microswitch. The present application is not limited thereto.
Optionally, the action component is connected to the travel switch S1, and is configured to switch the on/off state of the travel switch S1 when the action component is in the opening or closing state.
Illustratively, as shown in FIG. 5, the motion assembly may be mechanically coupled to a travel switch S1 to establish a feedback system. For example, as shown in fig. 3, when the first terminal P1 is connected to a positive voltage and the second terminal P2 is connected to a negative voltage, the current returns to the second terminal P2 through the contacts 3 and 5 of the stroke switch S1, the contacts 7 and 8 of the contact portion in the polarity trigger relay K2, the actuator assembly, and the contacts 9 and 11 of the contact portion in the polarity trigger relay K2. At this time, the action assembly moves in the direction indicated by the arrow in fig. 3, and at this time, the corresponding rotary driver M in fig. 5 acts through the transmission of the operating mechanism 100, so as to realize the opening or closing of the moving and static contacts. At this time, the lever 101 of the operating mechanism 100 also operates the stroke switch S1 to connect the contacts 3 and 4 of the stroke switch S1, and at this time, the operating member is turned off to stop the movement. For example, as shown in fig. 4, when the first terminal P1 is connected to a negative voltage and the second terminal P2 is connected to a positive voltage, the linkage feedback relationship between the operation element and the travel switch S1 is the same, and the description thereof is omitted here.
Optionally, the action assembly includes a rotary driver M and an operating mechanism 100 in transmission connection with a rotary output end of the rotary driver M; the first switch and the second switch are respectively connected to the rotary driver M, and are configured to drive the operating mechanism 100 to be in an open state or a close state when the rotary driver M rotates.
Illustratively, as shown in FIG. 5, the motion assembly includes a rotary drive M and an operating mechanism 100. The rotary driver M is directly connected to the control circuit in fig. 1 to 4, that is, the rotary driver M is controlled to rotate in the same direction all the time by on-off of the control circuit. When the rotary driver M is powered on to rotate, the operating mechanism 100 is driven to act, so that the moving contact and the fixed contact in the operating mechanism 100 are contacted to complete the switching-on of the circuit breaker, or the moving contact and the fixed contact in the operating mechanism 100 are separated to complete the switching-off of the circuit breaker.
Optionally, the operating mechanism 100 is geared with the rotary output of the rotary drive M.
Illustratively, the operating mechanism 100 and the rotary output of the rotary drive M are engaged, i.e. they are geared together. As shown in fig. 5, a helical tooth is provided at the rotational output end of the rotational driver M, and a rotatable gear is correspondingly provided at one end of the operating mechanism 100, such that the tooth on the gear and the helical tooth on the rotational output end cooperate with each other. When the rotary driver M rotates, the gear can be driven to rotate, so that the gear continuously drives the moving contact to move. Through the transmission mode of worm gear, can effectual improvement driven stability and accuracy.
In another aspect of the embodiments of the present invention, there is provided a circuit breaker including any one of the above-described circuit breaker control apparatuses.
For example, as shown in fig. 5, when the circuit breaker control device is applied to a circuit breaker, the moving component can always keep moving in the same direction when the circuit breaker is switched on by corresponding to the contact connection positions of the switching travel switch S1, the first switch and the second switch, so that after the circuit breaker is switched from closing to opening, when the circuit breaker continues to need to be closed, the moving component can still move in the same direction, and then the circuit breaker can complete re-closing again. The circuit quantity in the inside of effectual reduction circuit breaker reduces the circuit in the circuit breaker and lays the degree of difficulty, is favorable to the miniaturization of circuit breaker.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A circuit breaker control apparatus, comprising: the travel switch comprises a first terminal, a second terminal, a travel switch, a first change-over switch, a second change-over switch and an action component; the first terminal is connected with the travel switch, a normally closed contact of the travel switch is connected with a normally closed contact of the first selector switch, the first selector switch and the second selector switch are respectively connected with the action assembly, and a normally closed contact of the second selector switch is connected with the second terminal; the normally open contact of the travel switch is connected with the normally open contact of the second change-over switch, and the normally open contact of the first change-over switch is connected with the second terminal and used for controlling the action assembly to keep moving in the same direction when the first terminal and the second terminal receive positive and negative electric signals or negative and positive electric signals.
2. The circuit breaker control apparatus of claim 1, wherein the first diverter switch and the second diverter switch comprise ganged switches.
3. The circuit breaker control apparatus of claim 2, wherein the ganged switch is a polarity triggered relay.
4. The circuit breaker control apparatus of claim 2, further comprising a diode; the linkage switch is a non-polarity trigger relay; the non-polarity trigger relay is connected with the diode in series.
5. The circuit breaker control apparatus of claim 1, wherein the first transfer switch is a first relay; the second change-over switch is a second relay.
6. The circuit breaker control apparatus of any one of claims 2 to 5, wherein a master switch is provided between the second terminal and the travel switch.
7. The circuit breaker control device according to any one of claims 2 to 5, wherein the actuating member is connected to the travel switch, and is configured to switch the travel switch between an open state and a closed state when the actuating member is in the open state or the closed state.
8. The circuit breaker control apparatus of claim 1, wherein the motion assembly comprises a rotary actuator and an operating mechanism drivingly connected to a rotary output of the rotary actuator; the first change-over switch and the second change-over switch are respectively connected with the rotary driver and used for driving the operating mechanism to be in an opening or closing state when the rotary driver rotates.
9. The circuit breaker control apparatus of claim 8, wherein the operating mechanism is in meshing communication with the rotary drive rotary output.
10. A circuit breaker comprising a circuit breaker control device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728524.8A CN113972114A (en) | 2020-07-24 | 2020-07-24 | Circuit breaker control device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728524.8A CN113972114A (en) | 2020-07-24 | 2020-07-24 | Circuit breaker control device and circuit breaker |
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| CN113972114A true CN113972114A (en) | 2022-01-25 |
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| CN202010728524.8A Pending CN113972114A (en) | 2020-07-24 | 2020-07-24 | Circuit breaker control device and circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011165644A (en) * | 2010-01-13 | 2011-08-25 | Mitsubishi Electric Corp | Electric operation device of circuit breaker |
| CN102309352A (en) * | 2006-05-19 | 2012-01-11 | 爱惜康内镜外科公司 | Electrical surgical instrument |
| CN210489471U (en) * | 2019-08-29 | 2020-05-08 | 上联控股集团有限公司 | Miniature dual power supply |
| CN212365901U (en) * | 2020-07-24 | 2021-01-15 | 上海良信电器股份有限公司 | Circuit breaker control device and circuit breaker |
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2020
- 2020-07-24 CN CN202010728524.8A patent/CN113972114A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309352A (en) * | 2006-05-19 | 2012-01-11 | 爱惜康内镜外科公司 | Electrical surgical instrument |
| JP2011165644A (en) * | 2010-01-13 | 2011-08-25 | Mitsubishi Electric Corp | Electric operation device of circuit breaker |
| CN210489471U (en) * | 2019-08-29 | 2020-05-08 | 上联控股集团有限公司 | Miniature dual power supply |
| CN212365901U (en) * | 2020-07-24 | 2021-01-15 | 上海良信电器股份有限公司 | Circuit breaker control device and circuit breaker |
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Effective date of registration: 20230403 Address after: No. 2000, Shenjiang South Road, Pudong New Area, Shanghai, 201315 Applicant after: Shanghai Liangxin Electrical Co.,Ltd. Applicant after: Huawei Digital Energy Technology Co.,Ltd. Address before: No. 2000, Shenjiang South Road, Pudong New Area, Shanghai, 201315 Applicant before: Shanghai Liangxin Electrical Co.,Ltd. Applicant before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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