CN118588472B - A leakage circuit breaker - Google Patents
A leakage circuit breaker Download PDFInfo
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- CN118588472B CN118588472B CN202410863499.2A CN202410863499A CN118588472B CN 118588472 B CN118588472 B CN 118588472B CN 202410863499 A CN202410863499 A CN 202410863499A CN 118588472 B CN118588472 B CN 118588472B
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- box body
- shell
- air inlet
- box
- circuit breaker
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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
- H01H9/52—Cooling of switch parts
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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
- H01H71/02—Housings; Casings; Bases; Mountings
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
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Abstract
本申请涉及一种漏电断路器，涉及断路器的技术领域，其包括壳体、位于壳体内的控制组件以及盖设于壳体上的壳盖，所述控制组件包括转动设置于壳体上的控制手柄以及位于壳体内的控制件；所述壳体靠近控制手柄的部分上开设有散热口，所述散热口的内侧开口边沿上固设有加强凸起；本申请由于散热口以及加强凸起的配合设置，当该漏电断路器在应用时，首先，壳体内部产生的热量能够从散热口排出，提高了该漏电断路器的散热性能，其次，提高了壳体上靠近散热口部分的结构强度，降低壳体上靠近散热口部分受到外力冲击后出现形变或破裂的可能性。
The present application relates to a leakage circuit breaker, and relates to the technical field of circuit breakers, which comprises a shell, a control assembly located in the shell, and a shell cover arranged on the shell, wherein the control assembly comprises a control handle rotatably arranged on the shell and a control member located in the shell; a heat dissipation port is provided on a portion of the shell close to the control handle, and a reinforcing protrusion is fixedly provided on an inner opening edge of the heat dissipation port; due to the coordinated arrangement of the heat dissipation port and the reinforcing protrusion, when the leakage circuit breaker is used, firstly, the heat generated inside the shell can be discharged from the heat dissipation port, thereby improving the heat dissipation performance of the leakage circuit breaker, and secondly, the structural strength of the portion of the shell close to the heat dissipation port is improved, thereby reducing the possibility of deformation or rupture of the portion of the shell close to the heat dissipation port after being impacted by external force.
Description
Technical Field
The application relates to the technical field of circuit breakers, in particular to an electric leakage circuit breaker.
Background
The earth leakage breaker is a switching device capable of closing, carrying and opening a current under normal circuit conditions and capable of closing, carrying and opening a current under abnormal circuit conditions for a prescribed time. When the electric leakage or the human body electric shock occurs in the protected circuit, the electric leakage release in the electric leakage breaker enables the breaker to act as long as the electric leakage current reaches the design selection action current value, so that the power supply is cut off to play a role in electric leakage and electric shock protection.
In the related art, an electric leakage breaker includes casing, live wire circuit breaking unit and zero line circuit breaking unit, live wire circuit breaking unit includes live wire operating device, live wire tripping device, live wire moving contact, live wire static contact, live wire explosion cover and live wire terminal, live wire operating device includes the contact seat, operating handle and connecting rod, the live wire moving contact sets up in the contact seat, the zero line circuit breaking unit includes zero line operating device, zero line trip mechanism, the zero line moving contact, the zero line static contact, circuit board and zero line terminal, the zero line circuit breaking unit includes the zero line explosion cover, be equipped with electrically conductive switching piece on the contact seat, electrically conductive switching piece is connected with live wire moving contact electricity, be equipped with electrically conductive piece in the casing, electrically conductive piece is connected with the circuit board electricity. Reference is made in particular to the patent of the invention with publication number CN 112863963B.
However, although such an earth leakage breaker exhibits high reliability and effectiveness in design and function, it may cause an increase in internal temperature when it is operated in an overload or high current state for a long period of time, and an excessively high temperature may cause accelerated aging of electrical components inside the earth leakage protector, thereby increasing the risk of short circuits and fire, posing a serious threat to personnel and property, and there is room for improvement.
Disclosure of Invention
The application aims to provide an electric leakage breaker, which solves the problems that when the electric leakage breaker operates in an overload or high-current state for a long time, heat generated in the electric leakage breaker cannot be timely emitted, and potential safety hazards exist.
The application provides an electric leakage breaker which adopts the following technical scheme:
The electric leakage circuit breaker comprises a shell, a control assembly positioned in the shell and a shell cover arranged on the shell in a covering manner, wherein the control assembly comprises a control handle rotatably arranged on the shell and a control piece positioned in the shell; the part of the shell close to the control handle is provided with a heat dissipation opening, and the edge of the inner side opening of the heat dissipation opening is fixedly provided with a reinforcing protrusion.
Through adopting above-mentioned technical scheme, when this electric leakage circuit breaker is when using, because the bellied cooperation setting of thermovent and enhancement, firstly, the inside heat that produces of casing can be discharged from the thermovent, has improved the heat dispersion of this electric leakage circuit breaker, secondly, has improved the structural strength that is close to thermovent part on the casing, reduces and appears deformation or cracked possibility after being impacted by external force near thermovent part on the casing.
Optionally, a plurality of reinforcing ribs are fixedly arranged on the inner side surface of the shell, which is close to the control handle.
Through adopting above-mentioned technical scheme, owing to the setting of strengthening rib on the shells inner wall, improve the structural strength near the breach of stepping down on the casing, reduce the casing and receive deformation or fracture's possibility after the external force impact.
Optionally, a protection component is arranged outside the shell, the protection component comprises a box body for placing the shell and the shell cover, and a box door arranged on the side surface of the box body, and a wiring port is formed in the box body; the side of box is equipped with the air guide subassembly, the air guide subassembly is including setting up the gas outlet on the box lateral wall and setting up the air inlet on the other lateral wall of box, set firmly the air guide fan on the interior border of gas outlet, the air guide fan is used for discharging the gas that gets into in the box from the air inlet to the box outside.
By adopting the technical scheme, the box body is arranged on the corresponding wall surface due to the arrangement of the protection component, then the circuit breaker is arranged in the box body, the box body and the box door are used for protecting the circuit breaker, and the possibility that the circuit breaker is damaged due to random operation of irrelevant personnel is reduced;
And because the air guide assembly is arranged, the air guide fan can be started, external air enters the box body from the air inlet, and then the air guide fan discharges the air with higher internal temperature to the outside through the air outlet and the air guide pipe, so that the circulation of the internal and external air is formed, the heat dissipation performance of the circuit breaker is further improved, and the possibility of damage of the circuit breaker due to overheating is reduced.
Optionally, the air inlet is arranged on a region, close to the box door, of the bottom side of the box body, and the wiring port is arranged on a region, far away from the box door, of the bottom side of the box body.
Through adopting above-mentioned technical scheme, because air inlet and wiring mouth all set up in the bottom side of box, reduce external rainwater or dust and enter into the inside possibility of box, improve its barrier propterty.
Optionally, a detachable cover is arranged at the inner side opening of the wiring port; the air inlet comprises a plurality of waist-shaped through holes which are arranged side by side.
Through adopting above-mentioned technical scheme, because the air inlet constitutes and the cooperation setting of shutoff lid for a plurality of waist type through-holes, in this circuit breaker transportation, can use the shutoff lid to carry out the shutoff to the wiring mouth on the box, reduce the possibility that other great debris of volume enter into the box inside through wiring mouth or air inlet in the transportation, improve its barrier propterty.
Optionally, the box has set firmly the elastic sealing strip on the interior border of wiring mouth, air inlet and wiring mouth set up side by side, the inside downside of box has set firmly articulated seat between air inlet and wiring mouth, one side of shutoff lid is articulated with articulated seat through the articulated shaft, the opposite side of shutoff lid has set firmly the butt board that supports tightly with the elastic sealing strip medial surface.
Through adopting above-mentioned technical scheme, owing to articulated seat, butt board and elastic sealing strip's cooperation setting, realized the shutoff lid to the installation shutoff of wiring mouth, also be convenient for follow-up shutoff that releases the shutoff lid to the wiring mouth simultaneously, follow-up external cable of being convenient for runs through the wiring mouth and is connected with the circuit breaker.
Optionally, a positioning protrusion is fixed on the side surface of the abutting plate, and a positioning groove for inserting the positioning protrusion is formed in the elastic sealing strip.
Through adopting above-mentioned technical scheme, when the butt board rotation on the shutoff lid inserts the wiring mouth medial surface, because the cooperation setting of location arch and constant head tank, the location arch on the butt board inserts in the constant head tank on the elastic sealing strip this moment, has improved the installation stability when the shutoff of shutoff lid butt joint mouth.
Optionally, a plurality of shutoff holes have been seted up on the shutoff lid, the shutoff lid can overturn to the medial surface opening top of air inlet around the articulated shaft, set firmly on the medial surface of chamber door and be used for being in the spacing locating part of shutoff lid above the air inlet.
By adopting the technical scheme, when the circuit breaker is applied, the plugging cover is turned over to the upper side of the opening of the inner side surface of the air inlet around the hinge shaft, so that the outer wiring cable penetrates through the wiring opening and fills the wiring opening, the box door is adjusted to be in a closed state, and the limiting piece on the box door limits and locks the turned plugging cover; outside air can enter the box through the air inlet and the plugging holes in the plugging cover in sequence, and the plugging cover plays a role in protecting and blocking the air inlet at the moment, so that the possibility that outside impurities enter the box through the air inlet is reduced.
Optionally, one side of the box door is hinged with the box body, and the other side of the box door is detachably connected with the box door; the limiting piece comprises a limiting plate fixedly arranged on the inner side face of the box door, and a limiting notch for placing the plugging cover into a locking mode is formed in the side face edge, far away from the hinge shaft, of the limiting plate.
Through adopting above-mentioned technical scheme, when the chamber door is in locking state, the limiting plate rotates along with the chamber door in step this moment, makes the shutoff lid keep away from in the spacing breach on the limiting plate is put into to the side border of articulated shaft, finally locks the shutoff lid to this reduces the possibility that the shutoff lid was relieved to the air inlet shutoff when the chamber door was closed.
Optionally, the bottom side of box has seted up the locking through-hole, set up the locking screw that corresponds with the locking through-hole on the limiting plate, the box outside is equipped with the locking bolt of screw in locking screw after running through the locking through-hole.
Through adopting above-mentioned technical scheme, when the chamber door and adjustment to closing locking state, owing to locking bolt's setting, can run through locking through-hole with the locking bolt and screw in to locking screw in, realize the further locking to the chamber door, reduce irrelevant personnel and open the chamber door and then adjust the possibility of circuit breaker at will.
In summary, the present application includes at least one of the following beneficial technical effects:
1. because the heat dissipation mouth and strengthen bellied cooperation setting, when this electric leakage circuit breaker is when using, firstly, the inside heat that produces of casing can follow the heat dissipation mouth and discharge, has improved the heat dispersion of this electric leakage circuit breaker, secondly, has improved the structural strength that is close to the heat dissipation mouth part on the casing, reduces and appears deformation or cracked possibility after receiving external force impact near the heat dissipation mouth part on the casing.
2. Because the cooperation setting of air guide subassembly and protection component has both realized the protection to the electric leakage circuit breaker through box and chamber door, also constitutes the circulation of inside and outside gas through air inlet, gas outlet and air guide fan simultaneously, further improves the heat dispersion of circuit breaker.
3. Due to the arrangement of the plugging cover, plugging protection of the wiring port in the transportation process is realized, blocking filtration is performed on the air inlet in the application process, and finally the locking bolt is further locked on the box door.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic diagram of an explosive structure according to embodiment 1 of the present application;
FIG. 3 is a schematic view showing the arrangement of reinforcing protrusions and reinforcing ribs according to embodiment 1 of the present application;
fig. 4 is a schematic view of a structure of embodiment 2 of the present application when a door is in a closed state;
fig. 5 is a schematic view showing the structure of embodiment 2 of the present application when the door is in an opened state;
FIG. 6 is a schematic cross-sectional view showing the mounting engagement of the fixing plate and the case according to embodiment 2 of the present application;
FIG. 7 is a schematic cross-sectional view of an embodiment 2 of the present application showing the distribution of the air guide assembly;
FIG. 8 is a schematic view of a partial cross-sectional structure of a plugging cover according to embodiment 2 of the present application when plugging a junction port;
FIG. 9 is an enlarged schematic view of portion A of FIG. 8;
FIG. 10 is a schematic view of a partial cross-sectional structure of a plugging cover according to embodiment 2 of the present application when plugging an air inlet;
Fig. 11 is an enlarged schematic view of a portion B in fig. 10.
In the figure, 1, a shell; 11. a heat radiation port; 12. reinforcing the protrusion; 13. a relief notch; 14. reinforcing ribs; 2. a cover; 3. a control assembly; 31. a control member; 32. a control handle; 4. a protective assembly; 41. a case; 411. a fixed ear; 412. a fixing plate; 413. a hinge base; 414. a hinge shaft; 415. locking the through hole; 42. a door; 43. a wiring port; 44. an elastic sealing strip; 441. a positioning groove; 45. a limiting piece; 451. a limiting plate; 4511. limiting notch; 4512. locking the screw hole; 46. a locking bolt; 5. an air guide assembly; 51. an air outlet; 52. an air inlet; 521. waist-shaped through holes; 53. an air guide fan; 54. an air duct; 6. a blocking cover; 61. plugging the hole; 62. an abutting plate; 621. positioning the protrusion.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 and 2, an earth leakage breaker includes a housing 1, a control assembly 3 installed in the housing 1, and a cover 2 covering the housing 1, wherein the control assembly 3 includes a control handle 32 rotatably installed on the housing 1, and a control member 31 located in the housing 1, and the control member 31 includes a live wire breaking module and a neutral wire breaking module;
The live wire circuit breaking unit comprises a live wire operating mechanism, a live wire tripping mechanism, a live wire moving contact, a live wire static contact, an arc extinguishing chamber, a binding post and the like; the zero line circuit breaking unit comprises a zero line operating mechanism, a zero line tripping mechanism, a zero line moving contact, a zero line fixed contact, a circuit board, a binding post and the like, and the zero line circuit breaking unit is of a conventional circuit breaker internal structure and is not described in detail herein. The user can control the breaking of the live wire moving contact and the live wire fixed contact, the neutral wire moving contact and the neutral wire fixed contact through the control handle 32.
The shell is internally provided with an electric leakage simulation assembly, wherein the electric leakage simulation assembly comprises a simulation button, a resistor, a coil and a circuit board, and can control the simulation button to control the resistor, so that the simulation button outputs simulation current during electric leakage, and further the action of a tripping mechanism in the shell is controlled, and the electric leakage simulation assembly is of a conventional structure and is not repeated herein.
Referring to fig. 2 and 3, a heat radiation opening 11 is formed on a part of the shell 1 close to the control handle 32, and a reinforcing protrusion 12 is integrally formed on the edge of the inner opening of the heat radiation opening 11; the heat dissipation performance of the leakage breaker is improved, meanwhile, the structural strength of the part, close to the heat dissipation opening 11, of the shell 1 is improved, and the possibility that deformation or cracking occurs after the part, close to the heat dissipation opening 11, of the shell 1 is impacted by external force is reduced.
Referring to fig. 3, a yielding gap 13 for extending the control handle 32 to the outside is formed in the housing 1, a plurality of reinforcing ribs 14 are integrally formed on the inner side surface of the housing 1, which is close to the control handle 32, and the plurality of reinforcing ribs 14 are arranged side by side, so that the structural strength of the housing 1, which is close to the yielding gap 13, is improved.
The implementation principle of the embodiment of the application is as follows:
In this electric leakage circuit breaker application, the inside heat that produces of casing 1 can follow the thermovent 11 and discharge, and owing to strengthen protruding 12 and the cooperation setting of strengthening rib 14, improved the structural strength of casing 1, reduce the casing 1 and receive deformation or fracture's possibility after the external force impact.
Example 2:
referring to fig. 4 and 5, the embodiment of the present application is different from embodiment 1 in that a protection assembly 4 is provided outside of a housing 1, the protection assembly 4 includes a case 41 into which the housing 1 and a housing cover 2 are placed, a case door 42 provided at a side of the case 41, one side of the case door 42 is rotatably connected with the case 41, and the other side of the case 41 is detachably connected with the case 41 through a conventional lock structure;
four fixing lugs 411 are fixedly arranged on the side edge of the box body 41 far away from the box door 42, and a user can pass through and fix the box body 41 on a wall surface to be installed through bolts; and the bottom side of the box 41 is provided with a wiring port 43, and an external cable can be electrically connected with the circuit breaker through the wiring port 43.
Referring to fig. 6, dovetail-shaped fixing notches are formed in the case 1 and the case cover 2, a fixing plate 412 with a dovetail-shaped cross section is fixedly arranged on the inner wall of the case 41 in the horizontal direction, and the fixing notches on the circuit breaker are fixedly clamped with the fixing plate 412, so that the assembly and the fixation of the leakage circuit breaker and the case 41 are realized.
Referring to fig. 5 and 7, an air guide assembly 5 is disposed on a side surface of the case 41, the air guide assembly 5 includes an air outlet 51 disposed on a side wall of the case 41 and an air inlet 52 disposed on another side wall of the case 41, an air guide fan 53 is fixedly mounted on an inner edge of the air outlet 51, and the air guide fan 53 is a small fan driven by a conventional motor;
the box 41 is fixedly provided with an air duct 54 with a downward opening at the edge of the outer opening of the air outlet 51, the air guide fan 53 is started, external air enters the box 41 from the air inlet 52, and then the air guide fan 53 discharges the air with higher temperature in the box 41 to the outside through the air outlet 51 and the air duct 54.
Referring to fig. 7, the air inlet 52 and the wire connection port 43 are disposed side by side at the bottom side of the case 41, wherein the air inlet 52 is disposed at a region of the bottom side of the case 41 close to the door 42, and the wire connection port 43 is disposed at a region of the bottom side of the case 41 remote from the door 42;
the air inlet 52 includes a plurality of waist-shaped through holes 521 arranged side by side. Since the air inlet 52 and the wiring port 43 are both provided at the bottom side of the case 41, the possibility that external rainwater or dust enters the inside of the case 41 is reduced, and the protection performance is improved.
Referring to fig. 8, a detachable cover at the inner opening of the wiring port 43 is provided with a plugging cover 6, and a plurality of plugging holes 61 are uniformly formed in the plugging cover 6; wherein, two hinging seats 413 are fixedly arranged between the air inlet 52 and the wiring port 43 at the bottom side of the inside of the box body 41, one side of the plugging cover 6 is hinged with the hinging seats 413 through a hinging shaft 414, an elastic sealing strip 44 made of rubber material is fixedly arranged on the inner edge of the wiring port 43 of the box body 41 through glue, and a propping plate 62 propped against the inner side surface of the elastic sealing strip 44 is fixedly arranged at the other side of the plugging cover 6;
In the transportation process of the circuit breaker, as the opening of the wiring port 43 is larger, the plugging cover 6 can be used for plugging the wiring port 43 on the box 41, so that the possibility that other impurities with larger volume enter the box 41 through the wiring port 43 in the transportation process is reduced.
Referring to fig. 8 and 9, a positioning protrusion 621 is fixed on a side surface of the abutment plate 62, and a positioning groove 441 into which the positioning protrusion 621 is inserted is formed in the elastic sealing strip 44. When the abutting plate 62 on the plugging cover 6 is inserted into the inner side surface of the wiring port 43 in a rotating manner, the positioning protrusions 621 on the abutting plate 62 are inserted into the positioning grooves 441 on the elastic sealing strips 44.
Referring to fig. 10 and 11, the plugging cover 6 can be turned over to the upper side of the opening of the inner side surface of the air inlet 52 around the hinge shaft 414, and a limiting piece 45 for limiting the plugging cover 6 above the air inlet 52 is fixedly arranged on the inner side surface of the box door 42, wherein the limiting piece 45 comprises a limiting plate 451 fixedly arranged on the inner side surface of the box door 42, and a limiting notch 4511 is formed in the side surface of the limiting plate 451 away from the box door 42;
When the circuit breaker is applied, the plugging cover 6 is turned over to the upper side of the opening of the inner side surface of the air inlet 52 around the hinge shaft 414, the box door 42 is adjusted to be in a closed state, and the limiting plate 451 synchronously rotates along with the box door 42 at the moment, so that the side edge of the plugging cover 6 away from the hinge shaft 414 is placed into the limiting notch 4511 on the limiting plate 451, and finally the plugging cover 6 is locked; outside air can enter the box 41 through the air inlet 52 and the blocking holes 61 on the blocking cover 6 in sequence, and the blocking cover 6 plays a role in protecting and blocking the air inlet 52.
Referring to fig. 10, a locking through hole 415 is formed at the bottom side of the case 41, a locking screw hole 4512 corresponding to the locking through hole 415 is formed on the limiting plate 451, and a locking bolt 46 penetrating through the locking through hole 415 and then being screwed into the locking screw hole 4512 is formed at the outside of the case 41, wherein the locking bolt 46 is of a butterfly bolt type;
When the door 42 is closed and locked, the locking bolt 46 can be screwed into the locking screw hole 4512 after penetrating the locking through hole 415, so that the door 42 is further locked, and the possibility that an irrelevant person opens the door 42 and optionally adjusts the circuit breaker is reduced.
The implementation principle of the embodiment of the application is as follows:
In the transportation process of the leakage breaker, the plugging cover 6 is rotated, the wiring opening 43 on the box body 41 is plugged by using the plugging cover 6, and the positioning protrusion 621 on the abutting plate 62 is inserted into the positioning groove 441 on the elastic sealing strip 44;
In the application process of the leakage breaker, the box 41 is fixed on the corresponding wall in advance, then the plugging cover 6 is turned over around the hinge shaft 414 to the upper side of the opening of the inner side surface of the air inlet 52, the box door 42 is adjusted to be in a closed state, at this time, the limiting plate 451 rotates synchronously with the box door 42, the side edge of the plugging cover 6 far away from the hinge shaft 414 is placed into the limiting notch 4511 on the limiting plate 451, and finally the limiting plate 451 is further locked by using the locking bolt 46.
Unless defined otherwise, terms or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like, as used in this specification, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410863499.2A CN118588472B (en) | 2024-06-29 | 2024-06-29 | A leakage circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410863499.2A CN118588472B (en) | 2024-06-29 | 2024-06-29 | A leakage circuit breaker |
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| CN118588472A CN118588472A (en) | 2024-09-03 |
| CN118588472B true CN118588472B (en) | 2024-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410863499.2A Active CN118588472B (en) | 2024-06-29 | 2024-06-29 | A leakage circuit breaker |
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| CN118588472A (en) | 2024-09-03 |
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