CN112802718A - Signal terminal system of circuit breaker and circuit breaker - Google Patents
Signal terminal system of circuit breaker and circuit breaker Download PDFInfo
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- CN112802718A CN112802718A CN201911117702.7A CN201911117702A CN112802718A CN 112802718 A CN112802718 A CN 112802718A CN 201911117702 A CN201911117702 A CN 201911117702A CN 112802718 A CN112802718 A CN 112802718A
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- signal terminal
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- circuit breaker
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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
- H01H71/08—Terminals; Connections
Abstract
The invention provides a signal terminal system of a circuit breaker and the circuit breaker, and belongs to the technical field of low-voltage electrical appliances. The signal terminal system of circuit breaker includes: the moving contact, the static contact, the first signal terminal and the second signal terminal; the first signal terminal is electrically connected with the static contact in a straight-through mode, the second signal terminal is electrically connected with the static contact through an electronic element, and the moving contact and the static contact are respectively used for correspondingly connecting a load and a direct-current power supply. The circuit breaker comprises the signal terminal system of the circuit breaker. The invention aims to provide a signal terminal system of a circuit breaker and the circuit breaker, which can provide a plurality of signal terminals with different arrangement forms, facilitate the flexible application of a user to the signal terminals, reduce the types of the circuit breaker and facilitate the type selection of the user.
Description
Technical Field
The invention relates to the technical field of low-voltage electrical appliances, in particular to a signal terminal system of a circuit breaker and the circuit breaker.
Background
Power distribution is an extremely important link in the generation, delivery and use of electricity. Circuit breakers are widely used in power distribution as switching devices capable of closing, carrying and breaking current under normal circuit conditions, or closing, carrying and breaking current under abnormal circuit conditions within a prescribed time.
In some circuit breakers, a signal terminal is provided for collecting circuit information of a load circuit to which a moving contact and a fixed contact of the circuit breaker are connected. But the circuit breaker that has signal terminal now all is provided with the special signal terminal that corresponds according to actual demand, and the demand change to the user that can not be nimble in practical application carries out the adaptation, leads to the user to different signal terminal demands, needs select for use different circuit breakers for use, carries out circuit breaker lectotype and nimble application to the user and causes the difficulty.
Disclosure of Invention
The invention aims to provide a signal terminal system of a circuit breaker and the circuit breaker, which can provide a plurality of signal terminals with different arrangement forms, facilitate the flexible application of a user to the signal terminals, reduce the types of the circuit breaker and facilitate the type selection of the user.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, a signal terminal system of a circuit breaker is provided, including: the moving contact, the static contact, the first signal terminal and the second signal terminal;
the first signal terminal is electrically connected with the static contact in a straight-through mode, the second signal terminal is electrically connected with the static contact through an electronic element, and the moving contact and the static contact are respectively used for correspondingly connecting a load and a direct-current power supply.
Optionally, the first signal terminal and the second signal terminal are respectively connected to two ends of the electronic component, and one end of the electronic component connected to the first signal terminal is connected to the stationary contact.
Optionally, the electronic component is a resistor or a diode.
Optionally, the number of the electronic components connected to the second signal terminal is multiple, and the multiple electronic components are connected in series or in parallel between the second signal terminal and the fixed contact.
Optionally, the number of the first signal terminals is at least one, and the number of the second signal terminals is at least one.
Alternatively, when at least two second signal terminals are provided, the second signal terminals are connected in parallel with the first signal terminals through corresponding electronic components, respectively.
Optionally, for any one of the second signal terminals, the electronic element corresponding to the second signal terminal is a resistor or a diode.
Optionally, the signal terminal system of the circuit breaker further includes a connection terminal and a first patch board, the connection terminal is electrically connected to the fixed contact, and the first patch board is electrically connected to the moving contact.
Optionally, the signal terminal system of the circuit breaker further comprises a second patch panel for connecting the through poles.
In another aspect of the embodiments of the present invention, there is provided a circuit breaker, including: the signal terminal system of any one of the above circuit breakers.
The embodiment of the invention has the beneficial effects that:
the signal terminal system of the circuit breaker provided by the embodiment of the invention comprises a moving contact, a fixed contact, a first signal terminal and a second signal terminal. In the application process, the movable contact and the static contact are connected into a load loop, for example, one of the movable contact and the static contact is connected with an electrode of a direct current power supply, the other one of the movable contact and the static contact is connected with a load, and the on-off of the load loop is realized by controlling whether the movable contact and the static contact are in contact or not. The first signal terminal and the second signal terminal are both connected with the fixed contact and can be used for being connected with signal equipment, so that circuit information can be transmitted between the load loop and the signal equipment through the first signal terminal and/or the second signal terminal. Wherein, the first signal terminal is electrically connected with the static contact in a through way, the second signal terminal is electrically connected with the static contact through an electronic component, and signal terminals with various connection forms (a signal terminal which is connected with the static contact in a through way and is used for a signal device to obtain a battery signal and a signal terminal which is connected with the static contact through the electronic component and is used for the signal device to obtain a load signal) can be simultaneously provided for a user through the first signal terminal and the second signal terminal, so that the user can select and connect according to actual requirements and specific setting requirements of the signal device, or simultaneously connect different signal devices to a circuit breaker through the first signal terminal and the second signal terminal according to the actual requirements, when the type of the accessed signal device needs to be replaced, the connection can be carried out through selecting the corresponding first signal terminal or the second signal terminal which meets the connection requirements, the situation that the corresponding circuit breakers need to be replaced together when the types of the signal equipment are replaced is reduced. Through the circuit breaker signal terminal system of above-mentioned structure, can provide the signal terminal of multiple connection form simultaneously for the circuit breaker to be used for carrying out the adaptation to different signal equipment connection demands, convenience of customers uses, and reduced the model kind that the circuit breaker set up for corresponding different signal equipment, be convenient for produce and user carry out the lectotype.
According to the circuit breaker provided by the embodiment of the invention, the signal terminal system of the circuit breaker can provide a plurality of signal terminals in different setting forms, so that the signal terminals can be flexibly applied by a user, the types of the circuit breaker are reduced, and the type selection by the user is facilitated.
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 signal terminal system of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a signal terminal system of a circuit breaker according to an embodiment of the present invention;
fig. 3 is a third schematic structural diagram of a signal terminal system of a circuit breaker according to an embodiment of the present invention;
fig. 4 is a fourth schematic structural diagram of a signal terminal system of a circuit breaker according to an embodiment of the present invention;
fig. 5 is a fifth schematic structural diagram of a signal terminal system of a circuit breaker according to an embodiment of the present invention.
Icon: 110-moving contact; 120-static contact; 131-first signal terminals; 132-a second signal terminal; 140-an electronic component; 150-a terminal; 161-a first patch panel; 162-second patch panel.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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.
An embodiment of the present invention provides a signal terminal system of a circuit breaker, as shown in fig. 1, including: a moving contact 110, a fixed contact 120, a first signal terminal 131 and a second signal terminal 132; the first signal terminal 131 is electrically connected to the fixed contact 120, the second signal terminal 132 is electrically connected to the fixed contact 120 through the electronic component 140, and the movable contact 110 and the fixed contact 120 are respectively used for correspondingly connecting a load and a dc power supply.
In practical applications, the electrode of the dc power source connected to the moving contact 110 or the stationary contact 120 of the signal terminal system of the circuit breaker may be referred to as a protection electrode, and the other electrode of the dc power source directly connected to the load may be referred to as a through electrode. In the signal terminal system of the circuit breaker, one of the moving contact 110 and the fixed contact 120 is connected with the protection pole of the direct current power supply, and the other is connected with the load, so that the signal terminal system of the circuit breaker can be connected between the direct current power supply and the load, and the load and the protection pole and the through pole of the direct current power supply form a load loop, so as to control the on-off of the loop through the contact of the moving contact 110 and the fixed contact 120.
The first signal terminal 131 and the second signal terminal 132 may adopt the same specification or different specifications, and those skilled in the art may set the specifications of the first signal terminal 131 and the second signal terminal 132 according to actual requirements, so that the first signal terminal 131 and the second signal terminal 132 can be adapted to signal devices to be correspondingly connected.
The electronic component 140 connected between the second signal terminal 132 and the stationary contact 120 may be a resistor, a diode, an inductor, or the like. The specific selection of the electronic components 140 may be set according to the specific requirements of the signal devices that need to be connected through the second signal terminals 132 for access into the circuit breaker.
The signal terminal system of the circuit breaker according to the embodiment of the present invention includes a moving contact 110, a stationary contact 120, a first signal terminal 131 and a second signal terminal 132. In the application process, the moving contact 110 and the fixed contact 120 are connected to a load circuit, for example, one of the moving contact 110 and the fixed contact 120 is connected to an electrode of a dc power supply, and the other is connected to a load, and the load circuit is switched on and off by controlling whether the moving contact 110 and the fixed contact 120 are in contact with each other. The first signal terminal 131 and the second signal terminal 132 are both connected to the stationary contact 120 and are used for connecting to a signal device, so that circuit information can be transmitted between the load circuit and the signal device through the first signal terminal 131 and/or the second signal terminal 132. Wherein, the first signal terminal 131 is electrically connected to the fixed contact 120 directly, the second signal terminal 132 is electrically connected to the fixed contact 120 through the electronic component 140, and the first signal terminal 131 and the second signal terminal 132 can provide a plurality of connection forms of signal terminals for a user (the signal terminal directly connected to the fixed contact 120 for a signal device to obtain a battery signal, and the signal terminal connected to the fixed contact 120 through the electronic component 140 for a signal device to obtain a load signal), so that the user can select connection according to actual requirements and specific setting requirements of the signal device, or connect different signal devices to a circuit breaker through the first signal terminal 131 and the second signal terminal 132 according to the actual requirements, when the type of the accessed signal device needs to be changed, the connection can be performed by selecting the corresponding first signal terminal 131 or the second signal terminal 132 meeting the connection requirements, the situation that the corresponding circuit breakers need to be replaced together when the types of the signal equipment are replaced is reduced. Through the circuit breaker signal terminal system of above-mentioned structure, can provide the signal terminal of multiple connection form simultaneously for the circuit breaker to be used for carrying out the adaptation to different signal equipment connection demands, convenience of customers uses, and reduced the model kind that the circuit breaker set up for corresponding different signal equipment, be convenient for produce and user carry out the lectotype.
Optionally, as shown in fig. 1, the first signal terminal 131 and the second signal terminal 132 are respectively connected to two ends of the electronic element 140, and one end of the electronic element 140 connected to the first signal terminal 131 is connected to the stationary contact 120.
The electronic component 140 may be provided as one, and the first signal terminal 131 and the second signal terminal 132 may be provided as one, respectively, of course, the first signal terminal 131 and the second signal terminal 132 may also be provided as a plurality of terminals, respectively, or one of the terminals may be provided as a plurality of terminals. When the first signal terminal 131 and the second signal terminal 132 are both multiple or one of them is multiple, a person skilled in the art can perform adaptive adjustment to connect the first signal terminal 131 and the second signal terminal to two ends of the electronic component 140, respectively, so that multiple second signal terminals 132 connected with the same electronic component 140 can be provided, and simultaneous access of multiple signal devices of the same type is facilitated; for example, as shown in fig. 2, when the first signal terminals 131 and the second signal terminals 132 are respectively provided in plurality, one end of the electronic component 140 is respectively connected to each first signal terminal 131, the other end is respectively connected to each second signal terminal 132, and one end of the electronic component 140 connected to the first signal terminals 131 is connected to the stationary contact 120; when the first signal terminal 131 is one and the second signal terminal 132 is multiple, or the first signal terminal 131 is multiple and the second signal terminal 132 is one, the connection arrangement of the first signal terminal 131 and the second signal terminal at two ends of the electronic element 140 is similar to that of the above example, and is not repeated herein.
The first signal terminal 131 and the second signal terminal 132 are respectively connected to two ends of the electronic component 140, and one end of the electronic component 140, which is connected to the first signal terminal 131, is connected to the static contact 120, so that the first signal terminal 131 directly connected to the static contact 120 and the second connection terminal connected to the static contact 120 through the electronic component 140 can be arranged relatively close to each other, the overall structure is more compact, the signal terminal system of the circuit breaker can be conveniently arranged and distributed in the circuit breaker, the internal distribution of the circuit breaker can be optimized, and the size of the circuit breaker can be reduced.
Optionally, the electronic component 140 is a resistor or a diode.
When the electronic component 140 is set as a resistor, the resistor can provide a current limiting function for the electrical connection between the second signal terminal 132 and the static contact 120, and reduce the current of the connection line of the second signal terminal 132, so that the second signal terminal 132 adapted to the signal device with relatively small operating current can be provided for the user at the same time, and the load signal can be transmitted to the signal device with relatively small operating current, and the battery signal can be transmitted to the first signal terminal 131 adapted to the conventional signal device capable of being directly connected to the static contact 120, and the battery signal can be transmitted to the conventional signal device. The signal device with relatively small working current is connected to the static contact 120 through the second signal terminal 132 corresponding to the connecting resistor, so that the influence of large current on the normal use of the signal device can be avoided.
When the electronic component 140 is configured as a diode, the diode can provide a rectifying, voltage stabilizing or polarity protecting function for the electrical connection between the second signal terminal 132 and the stationary contact 120, so that the second signal terminal 132 adapted to the signal equipment requiring rectifying, voltage stabilizing or polarity protecting function can be provided for the user at the same time and the load signal can be transmitted for the second signal terminal 132, and the battery signal can be transmitted for the first signal terminal 131 adapted to the conventional signal equipment capable of being directly connected to the stationary contact 120. The user can selectively connect the conventional signal equipment and the signal equipment needing rectification, voltage stabilization or polarity protection into the circuit breaker or simultaneously connect the circuit breaker through the signal terminal system of the circuit breaker, and when the type of the signal equipment connected with the circuit breaker through the signal terminal needs to be switched (switching between the conventional signal equipment and the signal equipment needing rectification, voltage stabilization or polarity protection), the circuit breaker does not need to be integrally replaced, and only the corresponding signal terminal needs to be switched (the corresponding first signal terminal 131 or second signal terminal 132 is selected according to the type requirement of the signal equipment).
Alternatively, as shown in fig. 3, the number of the electronic components 140 connected to the second signal terminal 132 is plural, and the plural electronic components 140 are connected in series (not shown in the series type drawing) or in parallel between the second signal terminal 132 and the fixed contact 120.
By connecting the plurality of electronic components 140 between the second signal terminal 132 and the fixed contact 120 and connecting the plurality of electronic components 140 in series or in parallel, the electrical connection between the second signal terminal 132 and the fixed contact 120 can be achieved, and the connection adaptation of signal equipment with more complex connection requirements can be met, so that the signal terminal system of the circuit breaker can provide adaptation for more types of signal equipment, and the wide applicability of the signal terminal system of the circuit breaker is improved.
Alternatively, the number of the first signal terminals 131 is at least one, and the number of the second signal terminals 132 is at least one.
In the embodiment of the present invention, the number of the first signal terminals 131 and the second signal terminals 132 may be combined in various ways, as shown in fig. 2, 3 and 4, for example, there is one first signal terminal 131 and a plurality of second signal terminals 132; or a plurality of first signal terminals 131 and one second signal terminal 132; or the first signal terminal 131 and the second signal terminal 132 are provided in plurality, respectively. As shown in fig. 2 and 4, when there are a plurality of second signal terminals 132, each second signal terminal 132 may be connected to the fixed contact 120 through the same electronic component 140, or each second signal terminal 132 may be connected to the fixed contact 120 corresponding to one or more electronic components 140.
In the embodiment of the present invention, when the number of the second signal terminals 132 is multiple, and each of the second signal terminals 132 is correspondingly connected to one or more electronic components 140, each electronic component 140 may be the same device or different devices, which is not limited herein, and a person skilled in the art may select and set the electronic component 140 according to actual needs. For example, the adaptation of the signal devices corresponding to different connection requirements can be provided by the plurality of second signal terminals 132 corresponding to the different types of the connected electronic components 140, or the plurality of signal terminals can be provided for the signal devices of the same connection requirements at the same time by the plurality of second signal terminals 132 corresponding to the same types of the connected electronic components 140, so as to access the plurality of signal devices of the same type at the same time.
Alternatively, as shown in fig. 4, when at least two second signal terminals 132 are provided, the second signal terminals 132 are connected in parallel with the first signal terminals 131 through the corresponding electronic components 140, respectively.
The second signal terminals 132 are respectively connected in parallel with the first signal terminals 131 through the corresponding electronic components 140, so that the connection structure when a plurality of second signal terminals 132 are arranged can be more compact, the overall layout of a signal terminal system of the circuit breaker is convenient, and the circuit breaker can be conveniently arranged in the circuit breaker.
Alternatively, for any one of the second signal terminals 132, the electronic element 140 corresponding to the second signal terminal 132 is a resistor or a diode.
When the second signal terminals 132 are provided in at least two, the electronic components 140 corresponding to any one of the second signal terminals 132 can be resistors or diodes, and a plurality of signal devices adapted to different requirements can be provided. When the electronic components 140 are resistors or diodes, the functions and effects of the second signal terminals 132 connected correspondingly have been described above, and are not described herein again. The electronic components 140 correspondingly connected to each second signal terminal 132 may be the same (both are resistors or both are diodes), and of course, the electronic components 140 correspondingly connected to each second signal terminal 132 may also be different devices (some are resistors and some are diodes) set according to actual needs, for example, there are two second signal terminals 132, one first signal terminal 131, two second signal terminals 132, one connected in parallel to the first signal terminal 131 through a resistor, and one connected in parallel to the first signal terminal 131 through a diode.
Optionally, as shown in fig. 5, the signal terminal system of the circuit breaker further includes a connection terminal 150 and a first patch board 161, wherein the connection terminal 150 is electrically connected to the stationary contact 120, and the first patch board 161 is electrically connected to the movable contact 110.
The fixed contact 120 and the movable contact 110 can be more conveniently connected to the load and the electrode of the dc power supply through the connection terminal 150 and the first patch board 161. In which the connection terminal 150 may be connected to a load, and the first socket 161 may be connected to an electrode of a direct current power source. Of course, in practical applications, the first patch board 161 can be connected to a load according to wiring requirements, and the connection terminal 150 can be connected to a pole of a dc power supply, which is not limited herein as long as the signal terminal system of the circuit breaker can be connected to a load circuit through the first patch board 161 and the connection terminal 150.
Optionally, as shown in fig. 5, the signal terminal system of the circuit breaker further includes a second patch panel 162, and the second patch panel 162 is used for connecting the through poles.
The second patch panel 162 also typically includes circuitry for connecting to a load so that a direct current pole of the dc power source can be conveniently and quickly connected to the load through the second patch panel 162.
Set up second wiring board 162, through the connection of second wiring board 162 with the through pole, make the signal terminal system of circuit breaker can provide solitary through pole wiring board (be used for connecting the interconnecting link that does not receive on-off control) to make the interconnecting link setting of load circuit more convenient, do not need the peripheral hardware through pole.
In another aspect of the embodiments of the present invention, there is provided a circuit breaker, including: the signal terminal system of any one of the above circuit breakers.
Generally, the circuit breaker further includes a housing, and an operating mechanism and an arc extinguish chamber disposed in the housing, wherein a signal terminal system of the circuit breaker is also disposed in the housing, the operating mechanism is connected to a moving contact 110 of the signal terminal system of the circuit breaker, and the moving contact 110 can be contacted with or separated from a stationary contact 120 by controlling the moving contact 110 through the operating mechanism, so as to control on/off of a load circuit connected through the moving contact 110 and the contact. The opening of the arc extinguishing chamber corresponds to a contact position of the movable contact 110 and the fixed contact 120, so as to extinguish an arc generated when the movable contact 110 and the fixed contact 120 are disconnected (separated).
The circuit breaker adopts the signal terminal system of the circuit breaker, can provide a plurality of signal terminals with different setting forms, is convenient for a user to flexibly use the signal terminals, reduces the type types of the circuit breaker and is convenient for the user to select the type.
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 signal terminal system for a circuit breaker, comprising: the moving contact, the static contact, the first signal terminal and the second signal terminal;
the first signal terminal is electrically connected with the static contact in a through manner, the second signal terminal is electrically connected with the static contact through an electronic element, and the moving contact and the static contact are respectively used for correspondingly connecting a load and a direct-current power supply.
2. The signal terminal system of claim 1, wherein the first signal terminal and the second signal terminal are respectively connected to two ends of the electronic component, and one end of the electronic component connected to the first signal terminal is connected to the stationary contact.
3. The signal termination system of a circuit breaker according to claim 1 or 2, characterized in that said electronic component is a resistor or a diode.
4. The signal terminal system of circuit breaker according to claim 1 or 2, characterized in that the number of said electronic components connected with said second signal terminal is plural, and a plurality of said electronic components are connected in series or in parallel between said second signal terminal and said stationary contact.
5. The signal termination system of claim 1, wherein the number of the first signal terminals is at least one and the number of the second signal terminals is at least one.
6. The signal terminal system of circuit breaker according to claim 5, characterized in that when said second signal terminals are provided in at least two, said second signal terminals are connected in parallel with said first signal terminals through corresponding said electronic components, respectively.
7. The signal termination system of circuit breaker according to claim 6, wherein for any one of said second signal terminals, said electrical component corresponding to said second signal terminal is a resistor or a diode.
8. The signal terminal system of the circuit breaker as claimed in claim 1, further comprising a connection terminal electrically connected to the stationary contact and a first patch panel electrically connected to the movable contact.
9. The signal termination system of a circuit breaker of claim 8, further comprising a second patch panel for connecting a pass-through pole.
10. A circuit breaker characterized by comprising a signal terminal system of a circuit breaker according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117702.7A CN112802718A (en) | 2019-11-14 | 2019-11-14 | Signal terminal system of circuit breaker and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117702.7A CN112802718A (en) | 2019-11-14 | 2019-11-14 | Signal terminal system of circuit breaker and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112802718A true CN112802718A (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911117702.7A Pending CN112802718A (en) | 2019-11-14 | 2019-11-14 | Signal terminal system of circuit breaker and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112802718A (en) |
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2019
- 2019-11-14 CN CN201911117702.7A patent/CN112802718A/en active Pending
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Effective date of registration: 20220905 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. |
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