CN113451989B - Electric leakage locking structure of low-voltage electrical equipment under live working condition - Google Patents
Electric leakage locking structure of low-voltage electrical equipment under live working condition Download PDFInfo
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- CN113451989B CN113451989B CN202111008059.1A CN202111008059A CN113451989B CN 113451989 B CN113451989 B CN 113451989B CN 202111008059 A CN202111008059 A CN 202111008059A CN 113451989 B CN113451989 B CN 113451989B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a leakage locking structure of low-voltage electrical equipment under live working conditions, which comprises a shell, wherein a locking mechanism is arranged on the inner wall of the shell; the locking mechanism comprises a conductive spring arranged on the inner wall of a shell, the bottom wall of the shell is fixedly connected with a guide pipe, a lead screw is arranged on the conductive spring, a main gear is arranged on the side wall of the lead screw, an upper rack and a lower rack are connected to the inner wall of the shell in a sliding manner, levers are connected to the inner wall of the shell in a symmetrical and rotating manner, hollow sliders are connected to the inner wall of the shell in a symmetrical and fixed manner, T-shaped rods are connected to the hollow sliders in a sliding manner, conductive sheets are arranged on the side walls of the T-shaped rods, support columns are fixed to the inner wall of the shell, and contact sheets are arranged on the side walls of the support columns.
Description
Technical Field
The invention relates to the technical field of electric power related equipment, in particular to a leakage locking structure of low-voltage electrical equipment under a live working condition.
Background
In order to better identify the leakage point and shorten the time for handling the accident, it is common practice to add leakage blocking in the switch.
Through retrieval, the patent with application number 201820966027. X: the utility model provides a mining electric leakage blocking device, through the motion of fly leaf, moves interlock movable contact to the position of stationary contact, and the movable contact circular telegram is started after contacting to the stationary contact, has realized the electric leakage of circuit and has locked, but also has some not enoughly: when the device enters an electric leakage locking state, no warning is given, so that misoperation is easily caused by others under the condition of no knowledge; when the device is used for a long time, the temperature in the device is possibly overhigh by combining the environmental temperature, and potential safety hazards are caused; when the power supply is unstable, the movable contact and the fixed contact are separated from contact, and the normal use of the device is influenced.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a leakage locking structure of low-voltage electrical equipment under the condition of live working.
In order to achieve the purpose, the invention adopts the following technical scheme:
the electric leakage locking structure of the low-voltage electrical equipment under the condition of live working comprises a shell, wherein a locking mechanism is arranged on the inner wall of the shell;
the locking mechanism comprises a conductive spring arranged on the inner wall of a shell, the bottom wall of the shell is fixedly connected with a guide pipe through a fixed rod, one end of the conductive spring is provided with a lead screw, the side wall of the lead screw is connected with a master gear in a sliding way, the master gear synchronously rotates along with the lead screw, the inner wall of the shell is respectively connected with an upper rack and a lower rack in a sliding way through a slide rod, the upper rack and the lower rack are both meshed with the master gear, one end of the upper rack is fixedly provided with a collision block, one end of the lower rack is fixedly provided with a collision block, the inner wall of the shell is symmetrically and rotatably connected with a lever, the inner wall of the shell is symmetrically and fixedly connected with a hollow slider, the hollow slider is internally and slidably connected with a T-shaped rod, the T-shaped rod is rotatably connected with a corresponding lever, the side wall of the T-shaped rod is provided with a conductive sheet, the inner wall of the shell is fixedly provided with a support column, and the side wall of the support column is provided with a contact sheet, and an electric leakage controller is arranged in the shell.
Further, warning mechanism has been seted up to the support column inner wall, warning mechanism sets up two slots at the support column inner wall including the symmetry, the slot inner wall is equipped with electrically conductive arch, T shape pole lateral wall symmetry fixedly connected with inserted bar, the recess has been seted up to inserted bar lateral wall symmetry, the recess inner wall has electrically conductive ball through spring elastic connection, the warning light is installed at the casing top, warning light and electrically conductive ball, electrically conductive protruding electric connection.
Further, the lead screw lateral wall is equipped with the spline, master gear sliding connection is at the lateral wall of spline and lead screw, a plurality of auxiliary rods of master gear lateral wall fixedly connected with, shells inner wall fixedly connected with bottom plate, the circular recess has been seted up on the bottom plate, every the equal sliding connection of one end that the master gear was kept away from to the auxiliary rod is in the circular recess.
Furthermore, the inner wall of the shell is fixedly connected with a cooling box through a pull rod, the inner wall of the cooling box is connected with a piston in a sealing and sliding mode, one end, far away from the collision block, of the upper rack is fixedly connected with a push rod, and the push rod is fixedly connected with the piston.
Furthermore, the inner wall of the shell is provided with a circulating pipe, and the inner wall of the cooling box is respectively and fixedly connected with a liquid inlet pipe and a liquid outlet pipe in a penetrating way.
Further, all be equipped with the check valve in feed liquor pipe and the drain pipe, the one end and the feed liquor pipe fixed intercommunication of circulating pipe, the other end and the drain pipe fixed intercommunication of circulating pipe.
Further, the inner wall of the shell is rotatably connected with a locking mechanism, the locking mechanism comprises a rotating rod which is rotatably connected to the inner wall of the shell, a pinion is fixedly connected to the side wall of the rotating rod, the pinion is meshed with the main gear, a ratchet wheel is fixedly connected to the side wall of the rotating rod, a pawl is rotatably connected to the inner wall of the shell through a hard rod, and the pawl and the ratchet wheel are in sliding abutting contact.
Further, the pinion and the upper rack are arranged in a staggered mode, the pawl is made of magnetic materials, the inner wall of the shell is fixedly connected with an electromagnet, and the electromagnet is electrically connected with the electric leakage controller.
The invention has the following advantages:
1. through the arrangement of the screw rod, the conductive spring, the guide tube, the lever, the main gear, the electric contact piece, the conductive piece and other structures, after the conductive spring is electrified, the electric contact piece and the conductive piece are in butt electrification, so that the electric leakage locking of a circuit is realized, the connected equipment is protected, and the use safety of the equipment is improved;
2. the piston is driven to extrude the cooling liquid in the cooling box into the circulating pipe through the movement of the upper rack, and the heat dissipated in the shell is cooled in the subsequent electrifying process, so that high-temperature abnormity generated by long-time electricity utilization is prevented;
3. in the process of electrifying and contracting, the conductive spring can not enable the main gear to rotate reversely if current fluctuation is generated, and only under the action of work intervention of the electric leakage controller, the conductive plate and the contact plate can be separated from contact, so that the circuit is powered off.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure of part A in FIG. 1;
FIG. 3 is a perspective view of the conductive spring, lead screw and spline of the low voltage electrical apparatus under live working conditions according to the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 5 is an enlarged view of the structure of part B of FIG. 4;
FIG. 6 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 7 is a schematic view of the meshing position of the pinion and the main gear in the leakage locking structure of the low-voltage electrical equipment under hot-line working conditions according to the present invention;
fig. 8 is an enlarged schematic view of the structure of part C in fig. 6.
In the figure: 1 shell, 201 conductive spring, 202 guide tube, 203 lead screw, 204 fixing rod, 205 main gear, 206 contact piece, 207 support column, 208 conductive piece, 209T-shaped rod, 210 upper rack, 211 sliding rod, 212 impact block, 213 lever, 215 hollow slide block, 216 lower rack, 217 impact block, 301 spline, 302 auxiliary rod, 303 bottom plate, 304 circular groove, 401 inserted rod, 402 conductive ball, 403 groove, 404 spring, 405 slot, 406 conductive bump, 407 warning light, 501 cooling box, 502 piston, 503 circulation tube, 505 liquid inlet tube, 506 liquid outlet tube, 601 rotating rod, 602 pinion, 603 ratchet, pawl 604, 605 electromagnet, 7 leakage controller.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
Referring to fig. 1-3, the leakage locking structure of low-voltage electrical equipment under live working condition comprises a shell 1, wherein a locking mechanism is arranged on the inner wall of the shell 1;
the locking mechanism comprises a conductive spring 201 arranged on the inner wall of a shell 1, the bottom wall of the shell 1 is fixedly connected with a guide pipe 202 through a fixed rod 204, one end of the conductive spring 201 is provided with a lead screw 203, the side wall of the lead screw 203 is connected with a main gear 205 in a sliding way, the main gear 205 rotates synchronously with the lead screw 203, the inner wall of the shell 1 is respectively connected with an upper rack 210 and a lower rack 216 in a sliding way through a sliding rod 211, the upper rack 210 and the lower rack 216 are both meshed with the main gear 205, one end of the upper rack 210 is fixedly provided with a collision block 212, one end of the lower rack 216 is fixedly provided with a collision block 217, the inner side wall of the shell 1 is symmetrically and rotatably connected with a lever 213, the inner side wall of the shell 1 is symmetrically and fixedly connected with a hollow slide block 215, the hollow slide block 215 is internally and rotatably connected with a T-shaped rod 209, the T-shaped rod 209 is rotatably connected with a corresponding lever 213, the side wall of the T-shaped rod 209 is provided with a supporting column 207, the inner wall of the shell 1 is fixedly provided with a contact electric sheet 206, an earth leakage controller 7 is installed in the housing 1.
Warning mechanism has been seted up to support column 207 inner wall, warning mechanism includes that the symmetry sets up two slots 405 at support column 207 inner wall, slot 405 inner wall is equipped with electrically conductive arch 406, T shape pole 209 lateral wall symmetry fixedly connected with inserted bar 401, recess 403 has been seted up to inserted bar 401 lateral wall symmetry, recess 403 inner wall has electrically conductive ball 402 through spring 404 elastic connection, warning lamp 407 is installed at casing 1 top, warning lamp 407 and electrically conductive ball 402, electrically conductive arch 406 electric connection, after inserted bar 401 inserts slot 405, electrically conductive arch 406 and electrically conductive ball 402 offset the contact, simultaneously under the effect of spring 404, make electrically conductive ball 402 and electrically conductive arch 406 closely offset, simultaneously through setting up spring 404, make electrically conductive ball 402 card establish in slot 405, make conducting strip 208 and the contact strip 206 on the T shape pole 209 contact stably.
The side wall of the lead screw 203 is provided with a spline 301, the main gear 205 is slidably connected to the side walls of the spline 301 and the lead screw 203, the side wall of the main gear 205 is fixedly connected with a plurality of auxiliary rods 302, the inner wall of the housing 1 is fixedly connected with a bottom plate 303, a circular groove 304 is formed in the bottom plate 303, one end of each auxiliary rod 302, which is far away from the main gear 205, is slidably connected in the circular groove 304, and when the lead screw 203 rotates, the main gear 205 can be driven to rotate, and can also slide on the inner wall of the main gear 205.
In this embodiment, after the conductive spring 201 is energized, the conductive spring 201 will be energized and contracted, thereby driving the lead screw 203 to move in the horizontal direction, the conductive spring 201 is fixed on the inner wall of the housing 1, one end of the conductive spring 201 is rotationally connected with the lead screw 203, the lead screw 203 is slidably connected in the guide tube 202, because the inner wall of the guide tube 202 is provided with a section of spiral guide bar, and the guide tube 202 is in a fixed state, as shown in fig. 3 and 7, preferably, the thread pitch of the side wall of the lead screw 203 is larger, and the guide bar is in threaded fit with the side wall of the lead screw 203, when the lead screw 203 has a horizontal movement trend, under the action of the guide bar in the guide tube 202, a rotational component force is provided, thereby enabling the lead screw 203 to rotate a certain angle in the process of moving in the horizontal direction, because the side wall of the lead screw 203 is provided with the spline 301, the lead screw 203 drives the main gear 205 to rotate, the main gear 205 does not generate displacement under the limiting action of the bottom plate 303 and the auxiliary rod 302, so that the main gear 205 rotates with the lead screw 203 by a certain angle.
When the main gear 205 rotates a certain angle, the upper rack 210 and the lower rack 216 which are engaged and connected are driven to move along the horizontal direction, but the moving directions of the upper rack 210 and the lower rack 216 are opposite, so that the upper rack 210 drives the impact block 212 to push the lever 213 to rotate together, the lower rack 216 drives the impact block 217 to push the other lever 213 to rotate together, so that the two levers 213 drive the corresponding T-shaped rods 209 to move towards each other respectively, until the conducting strip 208 on the side wall of each T-shaped rod 209 is contacted with the contact strip 206 on the side wall of the supporting column 207, and the circuit is electrified.
Two T shape poles 209 are constantly to the direction motion that is close to support column 207, make inserted bar 401 insert the slot 405 after, electrically conductive protruding 406 and electrically conductive ball 402 counterbalance contact, simultaneously under the effect of spring 404, make electrically conductive ball 402 and electrically conductive protruding 406 closely counterbalance, warning light 407 lights and produces buzzing alarm sound this moment, simultaneously under the effect of spring 404, electrically conductive ball 402 card is established in slot 405, make conducting strip 208 and the contact piece 206 on the T shape pole 209 contact stably.
Example two
Referring to fig. 4 to 5, the present embodiment is different from the first embodiment in that:
the inner wall of the shell 1 is fixedly connected with a cooling box 501 through a pull rod, the inner wall of the cooling box 501 is connected with a piston 502 in a sealing sliding mode, one end, far away from the collision block 212, of the upper rack 210 is fixedly connected with a push rod 507, the push rod 507 is fixedly connected with the piston 502, and cooling liquid is filled in the cooling box 501.
The inner wall of the shell 1 is provided with a circulating pipe 503, and the inner wall of the cooling tank 501 is respectively and fixedly connected with a liquid inlet pipe 505 and a liquid outlet pipe 506 in a penetrating manner, so that the process that the cooling liquid enters the circulating pipe 503 from the cooling tank 501 and finally returns to the cooling tank 501 is realized.
One-way valves are arranged in the liquid inlet pipe 505 and the liquid outlet pipe 506, one end of the circulating pipe 503 is fixedly communicated with the liquid inlet pipe 505, the other end of the circulating pipe 503 is fixedly communicated with the liquid outlet pipe 506, the one-way valve in the liquid inlet pipe 505 only allows the cooling liquid in the circulating pipe 503 to enter the cooling tank 501, and the one-way valve in the liquid outlet pipe 506 only allows the cooling liquid in the cooling tank 501 to enter the circulating pipe 503.
In this embodiment, when the upper rack 210 moves a distance in the horizontal direction, the push rod 507 drives the piston 502 to slide in the cooling tank 501 in a sealing manner, so that the piston 502 extrudes the cooling liquid in the cooling tank 501 into the circulating pipe 503, and in the subsequent power-on process, the heat dissipated in the housing 1 is cooled, thereby preventing high-temperature abnormality caused by long-time electricity consumption.
EXAMPLE III
Referring to fig. 6 to 8, the present embodiment is different from the second embodiment in that:
the inner wall of the shell 1 is rotatably connected with a locking mechanism, the locking mechanism comprises a rotating rod 601 rotatably connected to the inner wall of the shell 1, a pinion 602 is fixedly connected to the side wall of the rotating rod 601, the pinion 602 is in meshed connection with the main gear 205, a ratchet 603 is fixedly connected to the side wall of the rotating rod 601, a pawl 604 is rotatably connected to the inner wall of the shell 1 through a hard rod, the pawl 604 and the ratchet 603 slide in a propping mode, the main gear 205 drives the pinion 602 to rotate, so that the pinion 602 drives the ratchet 603 to rotate through the rotating rod 601, the ratchet 603 and the pawl 604 slide in a propping mode, and the main gear 205 is prevented from reversing.
The pawl 604 is made of magnetic material, an electromagnet 605 is fixedly connected to the inner wall of the housing 1, and the electromagnet 605 is electrically connected to the leakage controller 7.
In this embodiment, after the main gear 205 rotates, the main gear 205 drives the pinion 602 to rotate, so that the pinion 602 drives the ratchet 603 to rotate through the rotating rod 601, the ratchet 603 and the pawl 604 slide against each other, and the main gear 205 is prevented from rotating reversely, which causes the conductive sheet 208 and the contact strip 206 to be separated from contact, i.e., in the process of energizing the conductive spring 201, if current fluctuation occurs, the main gear 205 cannot rotate reversely, only under the action of the work intervention of the leakage controller 7, the leakage controller 7 energizes the electromagnet 605, the electromagnet 605 and the pawl 604 have opposite magnetism and are mutually attractive, so that the energized electromagnet 605 causes the pawl 604 and the ratchet 603 to be separated from contact, at this time, the main gear 205 can rotate reversely, under the action of the extension of the conductive spring 201, the conductive sheet 208 and the contact strip 206 are separated from contact, and the circuit is powered off.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (8)
1. The electric leakage locking structure of the low-voltage electrical equipment under the condition of live working comprises a shell (1), and is characterized in that a locking mechanism and a warning mechanism are arranged on the shell (1); the locking mechanism comprises a conductive spring (201) arranged on the inner wall of a shell (1), a guide pipe (202) is fixed on the bottom wall of the shell (1) through a fixing rod (204), a lead screw (203) is arranged at one end of the conductive spring (201), a main gear (205) is movably connected onto the lead screw (203), an upper rack (210) and a lower rack (216) are respectively connected onto the inner wall of the shell (1) in a sliding manner through a sliding rod (211), two levers (213) are rotatably connected onto the inner side wall of the shell (1), hollow sliders (215) are symmetrically and fixedly connected onto the inner wall of the shell (1), a T-shaped rod (209) is slidably connected into the hollow sliders (215), the T-shaped rod (209) is rotatably connected with one corresponding lever (213), a conductive sheet (208) is arranged on the side wall of the T-shaped rod (209), and a support column (207) is fixed onto the inner wall of the shell (1), and the side wall of the supporting column (207) is provided with a contact sheet (206).
2. The electric leakage locking structure of the low-voltage electrical equipment under the hot-line work condition according to claim 1, wherein a section of spiral guide strip is arranged on the inner wall of the guide tube (202), a striking block (212) is fixed at one end of the upper rack (210), a striking block (217) is fixed at one end of the lower rack (216), an electric leakage controller (7) is installed in the shell (1), the warning mechanism comprises two slots (405) symmetrically formed in the inner wall of the support column (207), a conductive protrusion (406) is arranged on the inner wall of each slot (405), an insertion rod (401) is symmetrically and fixedly connected to the side wall of the T-shaped rod (209), grooves (403) are symmetrically formed in the side wall of the insertion rod (401), conductive balls (402) are elastically connected to the inner wall of each groove (403) through springs (404), and a warning lamp (407) is installed at the top of the shell (1), the warning lamp (407) is electrically connected with the conductive ball (402) and the conductive bump (406).
3. The electric leakage locking structure of low-voltage electrical equipment under the condition of hot-line work according to claim 2, characterized in that the side wall of the lead screw (203) is provided with a spline (301), the main gear (205) is slidably connected to the spline (301) and the side wall of the lead screw (203), the side wall of the main gear (205) is fixedly connected with a plurality of auxiliary rods (302), the inner wall of the shell (1) is fixedly connected with a bottom plate (303), the bottom plate (303) is provided with a circular groove (304), and one end of each auxiliary rod (302) far away from the main gear (205) is slidably connected in the circular groove (304).
4. The electric leakage locking structure of the low-voltage electrical equipment under the hot-line working condition according to claim 3, characterized in that the inner wall of the housing (1) is fixedly connected with a cooling box (501) through a pull rod, the inner wall of the cooling box (501) is connected with a piston (502) in a sealing and sliding manner, one end of the upper rack (210) far away from the impact block (212) is fixedly connected with a push rod (507), and the push rod (507) is fixedly connected with the piston (502).
5. The electric leakage locking structure of low-voltage electrical equipment under live working condition according to claim 4, characterized in that the inner wall of the casing (1) is provided with a circulating pipe (503), and the inner wall of the cooling tank (501) is fixedly connected with an inlet pipe (505) and an outlet pipe (506) respectively in a penetrating way.
6. The electric leakage locking structure of low-voltage electrical equipment under the hot-line work condition according to claim 5, characterized in that a one-way valve is arranged in each of the liquid inlet pipe (505) and the liquid outlet pipe (506), one end of the circulating pipe (503) is fixedly communicated with the liquid inlet pipe (505), and the other end of the circulating pipe (503) is fixedly communicated with the liquid outlet pipe (506).
7. The electric leakage locking structure of low-voltage electrical equipment under the condition of hot-line work according to claim 6, characterized in that a locking mechanism is rotatably connected to the inner wall of the housing (1), the locking mechanism comprises a rotating rod (601) rotatably connected to the inner wall of the housing (1), a pinion (602) is fixedly connected to the side wall of the rotating rod (601), the pinion (602) is meshed with the main gear (205), a ratchet (603) is fixedly connected to the side wall of the rotating rod (601), a pawl (604) is rotatably connected to the inner wall of the housing (1) through a hard rod, and the pawl (604) and the ratchet (603) slide against each other.
8. The electric leakage locking structure of the low-voltage electrical equipment under the hot-line working condition as claimed in claim 7, wherein the pinion (602) and the upper rack (210) are arranged in a staggered manner, the pawl (604) is made of a magnetic material, an electromagnet (605) is fixedly connected to the inner wall of the shell (1), and the electromagnet (605) is electrically connected with the electric leakage controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111008059.1A CN113451989B (en) | 2021-08-31 | 2021-08-31 | Electric leakage locking structure of low-voltage electrical equipment under live working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111008059.1A CN113451989B (en) | 2021-08-31 | 2021-08-31 | Electric leakage locking structure of low-voltage electrical equipment under live working condition |
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| CN113451989A CN113451989A (en) | 2021-09-28 |
| CN113451989B true CN113451989B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837059A1 (en) * | 1998-08-17 | 2000-02-24 | Maier & Cie C | Tripping device for a circuit breaker, in particular a residual current circuit breaker |
| CN207966900U (en) * | 2018-04-08 | 2018-10-12 | 舍恩高电气有限责任公司 | A kind of Minitype electrical leakage breaker |
| CN108695119A (en) * | 2017-04-07 | 2018-10-23 | 寺崎科技有限公司 | A kind of motor-operating mechanism of miniature circuit breaker |
-
2021
- 2021-08-31 CN CN202111008059.1A patent/CN113451989B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837059A1 (en) * | 1998-08-17 | 2000-02-24 | Maier & Cie C | Tripping device for a circuit breaker, in particular a residual current circuit breaker |
| CN108695119A (en) * | 2017-04-07 | 2018-10-23 | 寺崎科技有限公司 | A kind of motor-operating mechanism of miniature circuit breaker |
| CN207966900U (en) * | 2018-04-08 | 2018-10-12 | 舍恩高电气有限责任公司 | A kind of Minitype electrical leakage breaker |
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| CN113451989A (en) | 2021-09-28 |
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