CN218039055U

CN218039055U - Conductive system for plastic shell leakage protection circuit breaker

Info

Publication number: CN218039055U
Application number: CN202222245665.1U
Authority: CN
Inventors: 屠余武; 韦汉成
Original assignee: Zhejiang Liufang Electric Appliance Supporting Co ltd
Current assignee: Zhejiang Liufang Electric Appliance Supporting Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-12-13
Anticipated expiration: 2032-08-25

Abstract

The utility model discloses a moulded case earth leakage protection circuit breaker is with electrically conductive system, including earth leakage protection circuit breaker body, the right side of earth leakage protection circuit breaker body is equipped with the air exit, and the inside of air exit is rotated and is connected with the regulating spindle, and the outside fixed mounting of regulating spindle has the baffle, and the inner wall fixedly connected with support frame of earth leakage protection circuit breaker body, one side of support frame is rotated and is connected with the pivot, and the one end fixedly connected with flabellum of support frame is kept away from in the pivot, and the flabellum is located the inside of air exit, and the inside sliding connection of earth leakage protection circuit breaker body has the slide, the utility model discloses can be when the inside high temperature of earth leakage protection circuit breaker body, the flabellum is automatic to be rotated and dispels the heat, and the baffle reciprocates simultaneously and rotates, and the air flow of air exit department with higher speed improves the radiating efficiency, and after the heat dissipation, the baffle can automatic re reset, blocks the air exit, avoids the dust to get into earth leakage protection circuit breaker originally internal through the air exit.

Description

Conductive system for plastic shell leakage protection circuit breaker

Technical Field

The utility model relates to a leakage protection circuit breaker technical field specifically is a mould shell conductive system for leakage protection circuit breaker.

Background

The earth leakage protection circuit breaker is a switching device for preventing fire and explosion accidents caused by human body electric shock or electric leakage in a low-voltage circuit, and has the function of rapidly cutting off a power supply circuit when human body electric shock or equipment electric leakage occurs, so that the human body and the equipment are prevented from being damaged, and when the earth leakage protection circuit breaker works, an internal conductive system can generate a large amount of heat and the heat is required to be dissipated.

Through the retrieval, chinese patent application number 202021802205.9's patent discloses a moulded case circuit breaker's electrically conductive system protection device, including last shell and lower shell, the inside both sides of shell are provided with blower case and air exhauster case respectively down, just blower incasement portion is provided with the hair-dryer, hair-dryer one side is provided with blower motor, blower motor with electric connection between the hair-dryer, blower incasement portion is provided with the air exhauster, air exhauster one side is provided with air exhaust motor, air exhaust motor with electric connection between the air exhauster.

Above-mentioned utility model though have the convenience and carry out the thermal treatment to the moulded case circuit breaker in electrically conductive, prevent that the high temperature from leading to the advantage of inside component damage, but after long-time the use, can adhere to a large amount of dusts on the filter screen, make the filter screen jam, lead to the heat-sinking capability to reduce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould shell earth leakage protection is conductive system for circuit breaker to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a moulded case earth leakage protection circuit breaker is with electrically conductive system, includes earth leakage protection circuit breaker body, the right side of earth leakage protection circuit breaker body is equipped with the air exit, the inside of air exit is rotated and is connected with the regulating spindle, the outside fixed mounting of regulating spindle has the baffle, the inner wall fixedly connected with support frame of earth leakage protection circuit breaker body, one side of support frame is rotated and is connected with the pivot, the one end fixedly connected with flabellum of support frame is kept away from in the pivot, just the flabellum is located the inside of air exit, the inside sliding connection of earth leakage protection circuit breaker body has the slide, the spring is installed at the top of slide, the bottom fixedly connected with rack of slide, the outside fixedly connected with of regulating spindle and the second drive gear that the rack toothing is connected, the right side outside fixed mounting of earth leakage protection circuit breaker body has micro motor, micro motor's output fixedly connected with drive shaft, the equal fixedly connected with belt pulley in the outside of drive shaft and pivot, the incomplete bevel gear of outside fixedly connected with in proper order of drive shaft and first drive gear.

As an optimized scheme of the utility model, transmission bevel gear is connected with incomplete bevel gear meshing, first transmission gear is connected with rack toothing, two connect through belt drive between the belt pulley, the one end and this body coupling of earth leakage protection circuit breaker that the slide was kept away from to the spring.

As a preferred scheme of the utility model, one side fixed mounting that the pivot was kept away from to the support frame has temperature switch, micro motor and temperature switch electric connection.

As the utility model discloses an optimal scheme, the inner wall fixed mounting of earth leakage protection circuit breaker body has the wiring end, the top fixedly connected with electric conductor of wiring end.

As an optimized proposal of the utility model, the inside of the supporting frame is provided with an avoiding groove.

As a preferred scheme of the utility model, the right side outside fixedly connected with guard box of earth leakage protection circuit breaker body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a temperature switch who sets up, the flabellum, the regulating spindle, the baffle, incomplete bevel gear, the connecting axle, transmission bevel gear isotructure makes when earth leakage protection circuit breaker body inside high temperature, the flabellum can automatically rotate and dispel the heat, the baffle reciprocates simultaneously and rotates, the air flow of air exhaust vent department with higher speed, the heat dissipation efficiency is improved, and after the heat dissipation, the baffle can automatic re-setting, block the air exit, it is originally internal to avoid the dust to get into earth leakage protection circuit breaker through the air exit, protection box through setting can be used for protecting micro motor, it damages to avoid micro motor to receive outside striking, micro motor's life has been prolonged.

Drawings

FIG. 1 is a partial side sectional view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is a partial front sectional view of the present invention;

fig. 4 is a schematic structural view of the support frame of the present invention.

In the figure: 1. a leakage protection circuit breaker body; 2. a terminal; 3. an electrical conductor; 4. a pulley; 5. a support frame; 6. a fan blade; 7. an adjustment shaft; 8. a baffle plate; 9. an air outlet; 10. a first drive gear; 11. a protection box; 12. a micro-motor; 13. an incomplete bevel gear; 14. a connecting shaft; 15. a drive bevel gear; 16. a rack; 17. a drive shaft; 18. a spring; 19. a slide plate; 20. a second transmission gear; 21. a temperature switch; 22. a rotating shaft; 23. avoiding the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a conductive system for a plastic-shell earth leakage protection circuit breaker comprises an earth leakage protection circuit breaker body 1, wherein an air outlet 9 is arranged on the right side of the earth leakage protection circuit breaker body 1, the air outlet 9 can facilitate a fan blade 6 to discharge heat in the earth leakage protection circuit breaker body 1, an adjusting shaft 7 is rotatably connected inside the air outlet 9, a baffle 8 is fixedly installed on the outer side of the adjusting shaft 7 to influence the normal work of an electric element inside the earth leakage protection circuit breaker body 1, a support frame 5 is fixedly connected to the inner wall of the earth leakage protection circuit breaker body 1, the support frame 5 is used for providing a supporting point for a rotating shaft 22, a rotating shaft 22 is rotatably connected to one side of the support frame 5, one end of the rotating shaft 22, far away from the support frame 5, is fixedly connected with the fan blade 6, the fan blade 6 is positioned inside the air outlet 9, the fan blade 6 can quickly discharge heat in the earth leakage protection circuit breaker body 1 to avoid the overhigh temperature of an electric conductor 3, the inside of the leakage protection circuit breaker body 1 is slidably connected with a sliding plate 19, the top of the sliding plate 19 is provided with a spring 18, the spring 18 can be used for pushing the sliding plate 19 to enable a rack 16 to automatically reset, the rack 16 enables a second transmission gear 20 to rotate, the second transmission gear 20 enables an adjusting shaft 7 to rotate, and further enables a baffle 8 to automatically reset, the baffle 8 blocks an air outlet 9 to prevent dust from entering the leakage protection circuit breaker body 1 through the air outlet 9, the bottom of the sliding plate 19 is fixedly connected with the rack 16, the outer side of the adjusting shaft 7 is fixedly connected with the second transmission gear 20 meshed with the rack 16, the outer side of the right side of the leakage protection circuit breaker body 1 is fixedly provided with a micro motor 12, when the micro motor 12 is started, the micro motor 12 enables a driving shaft 17 to rotate, the driving shaft 17 enables a belt pulley 4 and an incomplete bevel gear 13 to rotate, and the belt pulley 4 enables the belt pulley 4 on a rotating shaft 22 to rotate through a belt, the belt pulley 4 rotates the rotating shaft 22, the rotating shaft 22 rotates the fan blade 6, the fan blade 6 blows air outwards through the air outlet 9 to exhaust heat, meanwhile, the incomplete bevel gear 13 rotates the transmission bevel gear 15, the transmission bevel gear 15 rotates the connecting shaft 14, the connecting shaft 14 rotates the first transmission gear 10, the first transmission gear 10 enables the rack 16 to move downwards, the rack 16 stretches the spring 18 through the sliding plate 19, the rack 16 enables the second transmission gear 20 to rotate anticlockwise, the second transmission gear 20 enables the adjusting shaft 7 to rotate anticlockwise, the adjusting shaft 7 enables the baffle 8 to rotate anticlockwise, the baffle 8 does not block the air outlet 9, the incomplete bevel gear 13 is separated from the transmission bevel gear 15, the spring 18 resets to enable the rack 16 to move upwards, the second transmission gear 20 rotates clockwise, the second transmission gear 20 enables the adjusting shaft 7 to rotate clockwise, the adjusting shaft 7 enables the baffle 8 to rotate clockwise, the movement is repeated, the baffle 8 rotates in a reciprocating mode with the adjusting shaft 7 as the center, the baffle 8 can accelerate air flow at the air outlet 9, the heat dissipation speed of the fan blade 6 is improved, the output end of the micro motor 12 is fixedly connected with the driving shaft 17, the driving shaft 17 and the driving shaft 22 are fixedly connected with the driving shaft, the driving shaft 14, the driving shaft 17, the driving shaft 14 is fixedly connected with the outer side of the driving shaft 13, the driving shaft 14, the connecting shaft 14 is fixedly connected with the connecting shaft, the connecting shaft 14, and the incomplete bevel gear 13, and the incomplete driving shaft 14, and the incomplete driving shaft is connected with the connecting shaft.

Wherein, the transmission bevel gear 15 is engaged with the incomplete bevel gear 13, the first transmission gear 10 is engaged with the rack 16, the two belt pulleys 4 are connected by belt transmission, and one end of the spring 18 far away from the sliding plate 19 is connected with the leakage protection circuit breaker body 1.

Wherein, one side fixed mounting that pivot 22 was kept away from to support frame 5 has temperature switch 21, micro motor 12 and temperature switch 21 electric connection, temperature switch 21 is a switch of using bimetallic strip as temperature sensing element, when the temperature is normal in earth leakage protection circuit breaker body 1, bimetallic strip is in free state, the contact is in the off-state, when the temperature rose to the action temperature value, bimetallic element is heated and produces the internal stress and act rapidly, the contact is closed, the switch-on circuit, thereby start micro motor 12 and dispel the heat to earth leakage protection circuit breaker body 1 inside, when the temperature dropped to the reset temperature, the contact automatic disconnection, micro motor 12 closes.

Wherein, earth leakage protection circuit breaker body 1's inner wall fixed mounting has wiring end 2, and wiring end 2 can be used for connecting the external electric wire, and then makes the electric wire carry out electric connection with electric conductor 3, and the top fixedly connected with electric conductor 3 of wiring end 2.

Wherein, the inside of support frame 5 is equipped with dodges the groove 23, dodges groove 23 and can be used for dodging the belt, avoids the belt to be blockked by support frame 5.

Wherein, the right side outside fixedly connected with guard box 11 of earth leakage protection circuit breaker body 1, guard box 11 can be used for protecting micro motor 12, avoids micro motor 12 to receive outside striking to damage, has prolonged micro motor 12's life.

Specifically, when the leakage protection circuit breaker is used, an external wire is connected with the terminal 2, when current passes through the conductor 3, the conductor 3 heats to gradually raise the internal temperature of the leakage protection circuit breaker body 1, when the temperature rises to an action temperature value, a bimetal element in the temperature switch 21 is heated to generate internal stress to rapidly act, a contact is closed, a circuit is connected, so that the micro motor 12 is started, the micro motor 12 rotates the driving shaft 17, the driving shaft 17 rotates the belt pulley 4 and the incomplete bevel gear 13, the belt pulley 4 rotates the other belt pulley 4 through a belt, so that the rotating shaft 22 rotates, the rotating shaft 22 rotates the fan blades 6, the fan blades 6 blow air outwards to discharge heat, meanwhile, the incomplete bevel gear 13 rotates the transmission bevel gear 15, the transmission bevel gear 15 rotates the connecting shaft 14, the first transmission gear 10 rotates, the first transmission gear 10 moves the rack 16 downwards, the rack 16 stretches the spring 18 through the sliding plate 19, the rack 16 enables the second transmission gear 20 to rotate anticlockwise, the second transmission gear 20 enables the adjusting shaft 7 to rotate anticlockwise, the adjusting shaft 7 enables the baffle 8 to rotate anticlockwise, the baffle 8 does not block the air outlet 9, then the incomplete bevel gear 13 is separated from the transmission bevel gear 15, the connecting shaft 14 can rotate freely, the rack 16 is not limited by the connecting shaft 14, therefore, the spring 18 resets, the spring 18 enables the rack 16 to move upwards, the second transmission gear 20 rotates clockwise, the second transmission gear 20 enables the adjusting shaft 7 to rotate clockwise, the adjusting shaft 7 enables the baffle 8 to rotate clockwise, then the incomplete bevel gear 13 is meshed with the transmission bevel gear 15 again, the baffle 8 rotates anticlockwise, the above movement is repeated, the baffle 8 rotates in a reciprocating mode with the adjusting shaft 7 as the center of a circle, and the baffle 8 can accelerate the air flow at the air outlet 9, when the temperature is reduced to the reset temperature, the bimetallic element in the temperature switch 21 resets, the contact is automatically disconnected, the micro motor 12 is closed, after the micro motor 12 is closed, the driving shaft 17 can rotate freely, the transmission bevel gear 15 cannot be limited by the incomplete bevel gear 13, the connecting shaft 14 can also rotate freely, the rack 16 is not limited by the first transmission gear 10, the automatic spring 18 resets, the spring 18 resets the rack 16, the baffle 8 automatically resets, the baffle 8 blocks the air outlet 9, and dust is prevented from entering the leakage protection circuit breaker body 1 from the air outlet 9.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any number of indicated technical features, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shell earth leakage protection circuit breaker is with electrically conductive system, includes earth leakage protection circuit breaker body (1), its characterized in that: the right side of the earth leakage protection circuit breaker body (1) is provided with an air outlet (9), the inner part of the air outlet (9) is rotatably connected with an adjusting shaft (7), the outer side of the adjusting shaft (7) is fixedly provided with a baffle (8), the inner wall of the earth leakage protection circuit breaker body (1) is fixedly connected with a support frame (5), one side of the support frame (5) is rotatably connected with a rotating shaft (22), one end of the rotating shaft (22) far away from the support frame (5) is fixedly connected with a fan blade (6), the fan blade (6) is positioned in the air outlet (9), the inner side of the earth leakage protection circuit breaker body (1) is slidably connected with a sliding plate (19), the top of the sliding plate (19) is provided with a spring (18), the bottom of the sliding plate (19) is fixedly connected with a rack (16), the outer side of the adjusting shaft (7) is fixedly connected with a second transmission gear (20) meshed with the rack (16), the right side of the earth leakage protection circuit breaker body (1) is fixedly provided with a micro motor (12), the output end of the micro motor (12) is fixedly connected with a driving shaft (17), the outer side of the driving shaft (22) is fixedly connected with a belt pulley (4), and the incomplete bevel gear (13), the inside of earth leakage protection circuit breaker body (1) rotates and is connected with connecting axle (14), the outside fixedly connected with transmission bevel gear (15) and first drive gear (10) in proper order of connecting axle (14).

2. The conductive system for the molded case earth leakage circuit breaker according to claim 1, wherein: the transmission bevel gear (15) is meshed with the incomplete bevel gear (13) and is connected with the first transmission gear (10) in a meshed mode through the rack (16), the belt pulleys (4) are connected with each other in a belt transmission mode, and one end, far away from the sliding plate (19), of the spring (18) is connected with the leakage protection circuit breaker body (1).

3. The conductive system for the molded case earth leakage circuit breaker according to claim 1, wherein: one side fixed mounting that pivot (22) were kept away from in support frame (5) has temperature switch (21), micro motor (12) and temperature switch (21) electric connection.

4. The conductive system for the molded case earth leakage circuit breaker according to claim 1, wherein: the inner wall fixed mounting of earth leakage protection circuit breaker body (1) has wiring end (2), the top fixedly connected with electric conductor (3) of wiring end (2).

5. The conductive system for the molded case earth leakage circuit breaker according to claim 1, wherein: the inside of support frame (5) is equipped with dodges groove (23).

6. The conductive system for the molded case earth leakage circuit breaker according to claim 1, wherein: the right side outside fixedly connected with guard box (11) of earth leakage protection circuit breaker body (1).