CN214336655U - Go up out formula from restoring to throne and cross undervoltage protection ware - Google Patents
Go up out formula from restoring to throne and cross undervoltage protection ware Download PDFInfo
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- CN214336655U CN214336655U CN202023115909.1U CN202023115909U CN214336655U CN 214336655 U CN214336655 U CN 214336655U CN 202023115909 U CN202023115909 U CN 202023115909U CN 214336655 U CN214336655 U CN 214336655U
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Abstract
The utility model provides an upper-inlet and upper-outlet type self-restoring overvoltage and undervoltage protector, which comprises a shell, a magnetic latching relay, a magnetic actuator, a contact actuating mechanism, an inlet wire end, an outlet wire end and a detection controller; the magnetic latching relay is arranged at the bottom of the shell; the magnetic actuator is arranged on one side of the magnetic latching relay; the contact actuating mechanism is arranged on one side of the magnetic actuator, which is far away from the magnetic latching relay, and comprises a fixed contact and a movable contact; the wire inlet end and the wire outlet end are respectively positioned on one side of the contact actuating mechanism away from the magnetic actuator; the wire inlet end is electrically connected with a power supply end and a static contact of the detection controller respectively, and the wire outlet end is electrically connected with a movable contact; and a signal end of the detection controller is electrically connected with the magnetic latching relay. The utility model discloses when concatenating at the master switch rear end, all locate master switch top with inlet wire end and leading-out terminal, have that the line is simple, occupation space is little, pleasing to the eye degree is high, with low costs, the good characteristics of security.
Description
Technical Field
The utility model relates to an electrical switch control technical field especially relates to an on-going up formula from recovery type crosses undervoltage protection ware.
Background
In the prior art, as a circuit protection device, in order to protect a circuit from overvoltage and undervoltage, a self-resetting overvoltage and undervoltage protector is required to be used for protection.
The prior art circuit breakers are bipolar, tripolar or quadrapole.
Referring to fig. 1-2, in the prior art, the self-resetting overvoltage and undervoltage protector used as a circuit protection device has two types of wire feeding and discharging, such as the top-feeding and bottom-discharging self-resetting overvoltage and undervoltage protector shown in fig. 1 and the bottom-feeding and top-discharging self-resetting overvoltage and undervoltage protector shown in fig. 2. These two kinds of self-healing cross undervoltage protection wares all include: the device comprises a shell 1, and a wire inlet end 2, a wire outlet end 3, a magnetic latching relay 4, a magnetic actuator 5, a contact actuating mechanism 6 and a detection controller 7 which are arranged in the shell 1; the contact actuating mechanism 6 includes a fixed contact 601 and a movable contact 602.
The incoming line end 2 and the outgoing line end 3 are arranged on two opposite sides of the shell 1, the incoming line end 2 is connected with a power supply incoming line 8 or the outgoing line end of the main switch, and the outgoing line end 3 is connected into the branch switch through an external connection wire 9. The external connection 9 includes an external wire or a bus bar.
The incoming line end 2 is electrically connected with the movable contact 602, the incoming line end 2 is also electrically connected with the power supply end of the detection controller 7 through a lead, the control end of the detection controller 7 is electrically connected with the magnetic latching relay 4 through a lead, the magnetic latching relay 4 is contacted with the magnetic actuator 5, the magnetic actuator 5 is contacted with the contact actuating mechanism 6, and the static contact 601 is electrically connected with the outgoing line end 3.
When the circuit is normal, the incoming line end 2 is electrically connected with the power end of the detection controller 7, the detection controller 7 sends a control signal to the magnetic latching relay 4, the electromagnetic coil of the magnetic latching relay 4 generates a magnetic field, the magnetic actuator 5 rotates, the contact actuating mechanism 6 is driven, the fixed contact 601 is contacted with the movable contact 602, and finally the circuit is switched on. After the circuit is connected, the detection controller 7 stops the output of the control signal, and the magnetic latching relay 4 keeps the magnetic actuator 5 in the contact-connection operation direction by its state holding function, so that the circuit is still connected with the fixed contact 601 and the movable contact 602 in the same contact state.
When an undervoltage or overvoltage fault occurs, the detection controller 7 sends a reverse control signal to the magnetic latching relay 4, so that the electromagnetic coil of the magnetic latching relay 4 generates a reverse magnetic field, the magnetic actuator 5 generates reverse rotation, the contact actuating mechanism 6 is driven, the fixed contact 601 and the movable contact 602 are separated, and finally a circuit is disconnected. After the circuit is disconnected, the detection controller 7 stops outputting the reverse control signal, the magnetic latching relay 4 keeps the magnetic actuator 5 in the attitude of the contact separating action direction by the state keeping function of the magnetic latching relay, the attitude of the static contact 601 and the movable contact 602 which are separated is not changed, and the circuit is still disconnected.
The structure and the working principle of the lower-inlet and upper-outlet type self-recovery overvoltage and undervoltage protector are basically the same, and the only difference is that the inlet terminal 2 of the lower-inlet and upper-outlet type self-recovery overvoltage and undervoltage protector is electrically connected with the stationary contact 601 and the power supply end of the detection controller 7, and the outlet terminal 3 is electrically connected with the movable contact 602.
Referring to fig. 3-4, taking a bipolar as an example, the incoming line end 2 and the outgoing line end 3 are disposed on two opposite sides of the casing 1, when the top-up and bottom-down self-healing overvoltage and undervoltage protector is installed, the incoming line end 2 is above the self-healing overvoltage and undervoltage protector, and the outgoing line end 3 is below the self-healing overvoltage and undervoltage protector; when the lower-inlet and upper-outlet type self-recovery overvoltage and undervoltage protector is installed, the wire inlet end 2 is arranged below the self-recovery overvoltage and undervoltage protector, and the wire outlet end 3 is arranged above the self-recovery overvoltage and undervoltage protector. The inlet end 2 is connected with a power inlet wire 8, and the outlet end 3 is connected with an external wiring 9.
The position of the self-recovery overvoltage and undervoltage protector with the port capable of entering and exiting from top to bottom or entering and exiting from top to bottom is used as a terminal circuit protection device, and the load can be directly controlled to be practical. However, when the self-recovery overvoltage/undervoltage protector is connected in series with the branch switch, the port arrangement mode of up-in-down-out or down-in-up-out has more disadvantages. The upper wire inlet end of the main switch is led in a power line, and the lower wire outlet end is led out.
The self-recovery type over-voltage and under-voltage protector is in an up-in and down-out mode, a tunnel needs to be reserved from the outer side face, the back face or the inner side of the main switch for the outgoing line of the main switch, then the outgoing line is wound to the upper side of the main switch and then is connected to the incoming line end of the self-recovery type over-voltage and under-voltage protector, the outgoing line is connected to the incoming line end of the branch switch only by winding from the outer side face of the main switch, the back face of the self-recovery type over-voltage and under-voltage protector or the inner side reserved tunnel of the self-recovery type over-voltage and under-voltage protector to the upper side of the self-recovery type over-voltage and under-voltage protector, and the winding wiring is very complex.
When the lower-in and upper-out self-recovery overvoltage and undervoltage protector is matched with an upper-in and upper-out main switch for use, a winding wiring problem also exists, and a wire is required to be led out from a wire outlet end above the main switch and is required to be wound downwards to a lower wire inlet end of the lower-in and upper-out self-recovery overvoltage and undervoltage protector. The branch switch comprises other circuit breakers and earth leakage protection circuit breakers.
With this connection, the following problems arise: the method has the advantages of large number of connecting wires, large workload of connecting wires, high requirement on connecting technology, low connecting speed, large occupied space of connection, poor aesthetic degree after connection, poor consistency of batch connection, high comprehensive production cost, poor connecting effect, low safety, multiple fault points, easy influence of vibration on electrical stability and the like.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's shortcoming, an object of the utility model is to provide an on-going up formula from compound under-voltage protector for solve among the prior art inlet wire end and leading-out terminal and be located respectively from compound under-voltage protector both sides of crossing, cause the problem that the line is complicated, occupation space is big, pleasing to the eye degree is poor, with high costs, security is poor.
In order to achieve the above and other related objects, the present invention provides an upper-inlet and upper-outlet type self-restoring overvoltage/undervoltage protector, which comprises a housing, a magnetic latching relay, a magnetic actuator, a contact actuating mechanism, an inlet terminal, an outlet terminal and a detection controller;
the magnetic latching relay is arranged at the bottom of the shell;
the magnetic actuator is arranged on one side of the magnetic latching relay and is in contact with the magnetic latching relay;
the contact actuating mechanism is arranged on one side of the magnetic actuator, which is far away from the magnetic latching relay, and comprises a fixed contact and a movable contact;
the wire inlet end and the wire outlet end are respectively positioned on one side of the contact actuating mechanism away from the magnetic actuator;
the wire inlet end is electrically connected with a power supply end of the detection controller and the static contact respectively, and the wire outlet end is electrically connected with the movable contact;
the signal end of the detection controller is electrically connected with the magnetic latching relay,
the magnetic actuator rotates under the action of the magnetic field of the magnetic latching relay to trigger the contact actuating mechanism.
In an embodiment of the present invention, the height difference between the wire inlet end and the wire outlet end to the bottom of the housing is different.
In an embodiment of the present invention, the line inlet end is provided with a line pressing frame, the line pressing frame of the line inlet end is electrically connected to the stationary contact, and the external power line inlet is crimped to the line pressing frame of the line inlet end.
In an embodiment of the present invention, the wire end is provided with a wire pressing frame, the wire pressing frame of the wire end is electrically connected to the movable contact, and the external connection is pressed into the wire pressing frame of the wire end.
In an embodiment of the present invention, the number of poles of the upper-inlet and upper-outlet type self-healing overvoltage/undervoltage protector is bipolar, tripolar or quadrupolar.
In an embodiment of the present invention, the number of the incoming line end and the outgoing line end matches with the number of poles of the upper-inlet and upper-outlet type self-healing overvoltage/undervoltage protector, and the incoming line end corresponds to the outgoing line end one to one.
As described above, the utility model discloses an on go up formula from recovery type and cross undervoltage protection ware, when concatenating at the master switch rear end, all locate the homonymy of casing with inlet wire end and leading-out terminal, reduced the complexity of wiring, the line is small in quantity, the line work load reduces, connect technical requirement and reduce, can connect at a high speed, the space occupies for a short time, the pleasing to the eye degree is high, the batch connection uniformity is good, the wire use amount is little, synthesize low in production cost, the connection effect is good, the security is high, the fault point is few, be difficult for receiving the vibration influence, electrical stability is good.
Drawings
Fig. 1 shows a cross-sectional view of the internal structure of an up-down self-resetting overvoltage/undervoltage protector disclosed in the prior art.
Fig. 2 shows a cross-sectional view of the internal structure of a lower-in upper-out self-resetting overvoltage and undervoltage protector disclosed in the prior art.
Fig. 3 shows a top view of a bipolar top-down self-healing undervoltage protection disclosed in the prior art.
Fig. 4 is a perspective view of an up-down self-healing overvoltage/undervoltage protector disclosed in the prior art.
Fig. 5 is a front sectional view of the upper-inlet upper-outlet type self-recovery overvoltage/undervoltage protector disclosed in the embodiment of the present invention.
Fig. 6 is a cross-sectional view of a back side structure of the top-in and top-out self-recovery overvoltage/undervoltage protector disclosed in the embodiment of the present invention.
Fig. 7 is a top view of the bipolar upper-inlet and upper-outlet type self-recovery overvoltage/undervoltage protector disclosed in the embodiment of the present invention.
Fig. 8 is a schematic perspective view of a bipolar upper-inlet and upper-outlet type self-recovery overvoltage/undervoltage protector disclosed in an embodiment of the present invention.
Fig. 9 is a schematic perspective view of a triple-pole upward-going self-recovery overvoltage/undervoltage protector disclosed in an embodiment of the present invention.
Fig. 10 is a schematic perspective view of a quadrupole upper-inlet upper-outlet self-restoring overvoltage/undervoltage protector disclosed in an embodiment of the present invention.
Fig. 11 is a schematic diagram illustrating a connection between an upper-inlet upper-outlet type self-recovery overvoltage/undervoltage protection device and an upper-inlet upper-outlet type circuit breaker according to an embodiment of the present invention.
Fig. 12 is a schematic diagram illustrating the connection between the upper-inlet and upper-outlet type self-recovery overvoltage/undervoltage protection device, the upper-inlet and upper-outlet type circuit breaker, and the branch switch disclosed in the embodiment of the present invention.
Element number description:
1-a shell; 2-a wire inlet end; 3-a wire outlet end; 4-a magnetic latching relay; 5-magnetic actuator; 6-a contact actuating mechanism; 7-detecting a controller; 8, power supply incoming line; 9-external wiring; 10-upper-in and upper-out type breaker; 11-an upper inlet and upper outlet type self-recovery overvoltage and undervoltage protector; 12-a partial switch; 601-stationary contact; 602-moving contact.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 5 to 12. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Referring to fig. 5-6, the present invention provides an upper-inlet and upper-outlet type self-recovery overvoltage/undervoltage protector, which comprises a housing 1, an inlet terminal 2, an outlet terminal 3, a magnetic latching relay 4, a magnetic actuator 5, a contact actuator 6 and a detection controller 7; wherein, the shell 1 is an insulating shell.
For traditional from compound undervoltage protection ware of crossing, the utility model discloses all change magnetic latching relay 4, magnetic actuator 5, the position of contact actuating mechanism 6 to remove inlet wire end 2's homonymy with leading-out terminal 3, above-mentioned improvement has only changed casing 1's mould, and the function to each inside part does not change, and the undervoltage control ability, automatic disconnection function, the automatic switch-on function of crossing from compound undervoltage protection ware do not produce the change influence, specific theory:
referring to fig. 5-6, the magnetic latching relay 4 is disposed at the bottom of the housing 1; the magnetic actuator 5 is provided on one side of the magnetic latching relay 4 and contacts the magnetic latching relay 4.
The contact actuating mechanism 6 is arranged on one side of the magnetic actuator 5 far away from the magnetic latching relay 4, wherein the contact actuating mechanism 6 comprises a fixed contact 601 and a movable contact 602;
the wire inlet end 2 and the wire outlet end 3 are respectively positioned at one side of the contact actuating mechanism 6 far away from the magnetic actuator 5, the wire inlet end 2 is respectively and electrically connected with a power supply end of the detection controller 7 and the stationary contact 601, and the wire outlet end 3 is electrically connected with the movable contact 602; the signal terminal of the detection controller 7 is electrically connected to the magnetic latching relay 4.
Referring to fig. 7-10, the incoming line terminal 2 and the outgoing line terminal 3 are disposed on the same side of the housing 1, and the incoming line terminal 2 and the outgoing line terminal 3 are insulated from each other.
Referring to fig. 11, the incoming end 2 and the outgoing end 3 are both connected by special bus bar crimping or wire connection and operated by professional electrical equipment personnel, so that wrong wires are not easy to connect.
The height of the inlet terminal 2 and the outlet terminal 3 with respect to the bottom of the housing 1 is different. In the embodiment, the wire inlet end 2 and the wire outlet end 3 are fixed in the shell 1, the wire inlet end 2 is arranged behind the wire outlet end 3, and the wire inlet end and the wire outlet end are insulated from each other; with this structure, wiring errors can be effectively prevented.
In actual use, a power supply is connected to a power supply end of the detection controller 7 through the wire inlet end 2, the detection controller 7 sends a control signal to the magnetic latching relay 4, an electromagnetic coil of the magnetic latching relay 4 generates a magnetic field, the magnetic actuator 5 rotates, the contact actuating mechanism 6 is driven, the fixed contact 601 is in contact with the movable contact 602, and finally a circuit is switched on. After the circuit is connected, the detection controller 7 stops the output of the control signal, and the magnetic latching relay 4 keeps the magnetic actuator 5 in the contact-connection operation direction by its state holding function, so that the circuit is still connected with the fixed contact 601 and the movable contact 602 in the same contact state.
When an undervoltage or overvoltage fault occurs, the detection controller 7 sends a reverse control signal to the magnetic latching relay 4, so that an electromagnetic coil of the magnetic latching relay 4 generates a reverse magnetic field, the magnetic actuator 5 generates reverse rotation, the contact actuating mechanism 6 is driven, the fixed contact 601 and the movable contact 602 are separated, and finally a circuit is disconnected. After the circuit is disconnected, the detection controller 7 stops outputting the reverse control signal, the magnetic latching relay 4 keeps the magnetic actuator 5 in the attitude of the contact separating action direction by the state keeping function of the magnetic latching relay, the attitude of the static contact 601 and the movable contact 602 which are separated is not changed, and the circuit is still disconnected.
To be described, the inlet terminal 2 is provided with a pressure wire frame, the pressure wire frame of the inlet terminal 2 is electrically connected to the stationary contact 601, and the external power inlet wire 8 is pressure-connected to the pressure wire frame of the inlet terminal 2.
The wire-pressing frame of the wire-out end 3 is electrically connected with the movable contact 602, and the external connection wire 9 is pressed in the wire-pressing frame of the wire-out end 3.
It should be noted that, the utility model discloses an on go up formula of going up from the formula of rising and cross undervoltage protection ware's number of poles can be bipolar, tripolar or quadrupole, and the quantity of inlet wire end and leading-out terminal and on go up formula of going up from the formula of rising and cross undervoltage protection ware's number of poles phase-match, and inlet wire end and leading-out terminal one-to-one.
Referring to fig. 8, when the bipolar structure is adopted, the number of the incoming line terminal 2 and the outgoing line terminal 3 is 2.
One incoming line end and the corresponding outgoing line end are connected with the zero line, and the other incoming line end and the corresponding outgoing line end are connected with any one of the three phase lines.
Referring to fig. 10, when the number of the four poles is four, the number of the incoming line terminal 2 and the outgoing line terminal 3 is 4.
One incoming line end and the corresponding outgoing line end are connected with the zero line, and the other three incoming line ends and the corresponding outgoing line ends are respectively connected with 3 phase lines.
Referring to fig. 9, when the voltage is three-pole, the number of the incoming line terminal 2 and the outgoing line terminal 3 is 3.
The three incoming line ends and the corresponding outgoing line ends are respectively connected with 3 phase lines.
Referring to fig. 11, in the top-in and top-out self-restoring overvoltage and undervoltage protection device in this embodiment, the main switch at the front end may be a circuit breaker and a top-in and bottom-out leakage protection circuit breaker of a conventional structure, or a top-in and top-out circuit breaker and a top-in and top-out leakage protection circuit breaker, and compared with the conventional structure, the wire used in the latter is convenient for prefabricated production, saves materials and man-hours, is attractive and uniform, has high consistency, is easy to automate a manual production mode, improves production efficiency and product quality, and changes the current situation of low quality and low efficiency.
Referring to fig. 12, from left to right, there are an upper-inlet and upper-outlet circuit breaker 10, an upper-inlet and upper-outlet self-healing overvoltage and undervoltage protector 11, and a plurality of branch switches 12; the power inlet wire 8 is connected to the wire inlet end of the upper-inlet and upper-outlet type circuit breaker 10, the wire outlet end of the upper-inlet and upper-outlet type circuit breaker 10 is connected with the wire inlet end of the upper-inlet and upper-outlet type self-healing overvoltage and undervoltage protector 11, the wire outlet end of the upper-inlet and upper-outlet type self-healing undervoltage protector 11 is connected with the wire inlet end of each branch switch 12, and the wire outlet end of each branch switch 12 is connected with subsequent devices respectively.
By adopting the structure, the connecting lines among the incoming line ends of the upper-inlet upper-outlet type circuit breaker, the upper-inlet upper-outlet type self-recovery overvoltage and undervoltage protector and the plurality of branch switches are all positioned above the circuit breaker, so that the situation that in the prior art, the self-recovery overvoltage and undervoltage protector is in an upper-inlet lower-outlet mode, the outgoing line of the main switch needs to reserve a roadway from the outer side surface, the back surface or the inner side of the main switch, then winds to the upper side of the main switch and then is connected to the incoming line end of the self-recovery overvoltage protector, the outgoing line of the self-recovery overvoltage protector is connected with the outgoing line of the main switch, needs to wind to the roadway from the outer side surface of the main switch, the back surface of the self-recovery overvoltage protector or the inner side of the self-recovery undervoltage protector to the upper side of the self-recovery overvoltage protector, and then is connected to the incoming line end of the branch switches, and the winding wiring is very complicated.
When the self-restoring overvoltage and undervoltage protector with lower inlet and upper outlet is matched with a main switch for use, a winding wiring problem also exists, and an outlet wire is required to be led out from a wire outlet end above the main switch and is wound downwards to a wire inlet end below the self-restoring overvoltage and undervoltage protector with lower inlet and upper outlet. The wiring complexity is slightly low, but the manual wiring amount is large, the number of movable contacts is large, the conducting wires are exposed, and the electrical stability is low.
To sum up, the utility model discloses an on go up out formula from recovery type and cross undervoltage protection ware, when concatenating at the master switch rear end, all locate the master switch top with inlet wire end and leading-out terminal, reduced the complexity of wiring, the line is small in quantity, the line work volume reduces, connect technical requirement and reduce, can connect at a high speed, the space occupies for a short time, the pleasing to the eye degree is high, connect the uniformity in batches well, the wire use amount is little, synthesize low in production cost, the connection effect is good, the security is high, the fault point is few, be difficult for receiving the vibration influence, electrical stability is good. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. An upper-inlet and upper-outlet type self-recovery overvoltage and undervoltage protector is characterized by comprising a shell, a magnetic latching relay, a magnetic actuator, a contact actuating mechanism, a wire inlet end, a wire outlet end and a detection controller;
the magnetic latching relay is arranged at the bottom of the shell;
the magnetic actuator is arranged on one side of the magnetic latching relay and is in contact with the magnetic latching relay;
the contact actuating mechanism is arranged on one side of the magnetic actuator, which is far away from the magnetic latching relay, and comprises a fixed contact and a movable contact;
the wire inlet end and the wire outlet end are respectively positioned on one side of the contact actuating mechanism away from the magnetic actuator;
the wire inlet end is electrically connected with a power supply end of the detection controller and the static contact respectively, and the wire outlet end is electrically connected with the movable contact;
the signal end of the detection controller is electrically connected with the magnetic latching relay,
the magnetic actuator rotates under the action of the magnetic field of the magnetic latching relay to trigger the contact actuating mechanism.
2. The top-entry, self-healing undervoltage protector of claim 1, wherein: the height difference from the wire inlet end to the bottom of the shell is different from that from the wire outlet end to the bottom of the shell.
3. The top-entry, self-healing undervoltage protector of claim 1, wherein: the inlet wire end is provided with a wire pressing frame, the wire pressing frame of the inlet wire end is electrically connected with the static contact, and the external power inlet wire is pressed and connected into the wire pressing frame of the inlet wire end.
4. The top-entry, self-healing undervoltage protector of claim 1, wherein: and the wire-pressing frame at the wire-outgoing end is electrically connected with the movable contact, and the external connection wire is pressed in the wire-pressing frame at the wire-outgoing end.
5. The top-entry, self-healing undervoltage protector of claim 1, wherein: the pole number of the upper-inlet and upper-outlet type self-healing overvoltage and undervoltage protector is bipolar, tripolar or quadrupolar.
6. The top-in, top-out, self-healing overvoltage and undervoltage protector of claim 5, wherein: the number of the wire inlet ends and the number of the wire outlet ends are matched with the number of poles of the upper-inlet upper-outlet type self-healing overvoltage and undervoltage protector, and the wire inlet ends correspond to the wire outlet ends one to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023115909.1U CN214336655U (en) | 2020-12-22 | 2020-12-22 | Go up out formula from restoring to throne and cross undervoltage protection ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023115909.1U CN214336655U (en) | 2020-12-22 | 2020-12-22 | Go up out formula from restoring to throne and cross undervoltage protection ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214336655U true CN214336655U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023115909.1U Active CN214336655U (en) | 2020-12-22 | 2020-12-22 | Go up out formula from restoring to throne and cross undervoltage protection ware |
Country Status (1)
| Country | Link |
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| CN (1) | CN214336655U (en) |
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