阅读说明：本技术 一种避免电流过大导致熔断丝烧毁的电力保护装置 (Electric power protection device for avoiding fuse burnout caused by overlarge current ) 是由 马北风 于 2020-12-22 设计创作，主要内容包括：本发明涉及电力技术领域,且公开了一种避免电流过大导致熔断丝烧毁的电力保护装置,包括壳体,所述壳体内部的底部固定连接有电磁装置,所述壳体的内部活动连接有转动盘,所述转动盘的内部固定连接有复位弹片。该避免电流过大导致熔断丝烧毁的电力保护装置,当电力电路中电流过大时,此时电磁装置磁场强度升高,进一步使得转动盘顺时针转动,此时竖杆带动横板向上运动,进一步使得活动触点与固定触点分离,从而达到了防止电流过大烧坏电气元件的效果。向右拉动拉杆,此时弹簧二带动限位板向下运动,进一步使得横板带动活动触点向下运动,此时活动触点与固定触点接触,从而达到了电力保护装置可以重复使用降低资源浪费的效果。(The invention relates to the technical field of electric power, and discloses an electric power protection device for preventing a fuse wire from being burnt due to overlarge current. This avoid electric current too big electric power protection device that leads to fuse to burn out, when electric current was too big in the power circuit, electromagnetic means magnetic field intensity rose this moment, further made the rolling disc clockwise rotation, the montant drives the diaphragm upward movement this moment, further made movable contact and fixed contact separation to the effect that prevents the electric current too big electric element of burning out has been reached. The pull rod is pulled rightwards, the second spring drives the limiting plate to move downwards at the moment, the transverse plate drives the movable contact to move downwards, and the movable contact is contacted with the fixed contact at the moment, so that the effect that the electric power protection device can be repeatedly used and resource waste is reduced is achieved.)

1. The utility model provides an avoid electric current too big electric power protection device that leads to fuse to burn out, includes casing (1), its characterized in that: the electromagnetic device is characterized in that an electromagnetic device (2) is fixedly connected to the bottom inside the shell (1), a rotating disc (3) is movably connected to the inside of the shell (1), a reset elastic sheet (4) is fixedly connected to the inside of the rotating disc (3), an electromagnet (5) is fixedly connected to the inside of the right side of the rotating disc (3), an arc-shaped groove (6) is formed in the top of the rotating disc (3), a fixed plate (7) is fixedly connected to the inside of the shell (1), a fixed contact (8) is fixedly connected to the top of the fixed plate (7), a vertical rod (9) is slidably connected to the inside of the fixed plate (7), a movable plate (10) is movably connected to the top of the vertical rod (9), a connecting rod (11) is fixedly connected to the top of the movable plate (10), and a limiting plate (12) is, the top fixedly connected with spring one (13) of limiting plate (12), the bottom swing joint of limiting plate (12) has diaphragm (14), the bottom fixedly connected with movable contact (15) of diaphragm (14), the right side swing joint of casing (1) has pull rod (16), the left side fixedly connected with gag lever post (17) of pull rod (16), the outer wall fixedly connected with spring two (18) of gag lever post (17).

2. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: the electromagnetic device (2) is connected in series in a power circuit, the electromagnet (5) is arranged on the upper right of the electromagnetic device (2), and the electromagnet (5) is made of a nickel-chromium alloy material.

3. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: the bottom of the vertical rod (9) is movably connected inside the arc-shaped groove (6).

4. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: one side, far away from the limiting plate (12), of the first spring (13) is fixedly connected to the top inside the shell (1), and the structure inside the shell (1) is symmetrical in the left-right center.

5. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: the bottom of the movable contact (15) is movably connected with the top of the fixed contact (8), and the movable contact (15) and the fixed contact (8) are connected in series in a power circuit.

6. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: the inclined angle of the bottom of the left side of the limiting rod (17) is the same as the inclined angle of the top of the right side of the limiting plate (12).

7. The power protection device of claim 1, wherein the fuse is prevented from being burned out due to excessive current, and the power protection device comprises: one side of the second spring (18) far away from the limiting rod (17) is fixedly connected to the inner part of the right side of the shell (1).

Technical Field

The invention relates to the technical field of electric power, in particular to an electric power protection device for preventing a fuse wire from being burnt due to overlarge current.

Background

The electric power is energy using electric energy as power, which converts the primary energy of nature into electric power through a mechanical energy device, and then supplies the electric power to each user through power transmission, power transformation and power distribution.

When the current that passes through inside the fuse is great among the prior art, its inside fuse can automatic fracture for the circuit breaks, thereby protect the circuit, but the fuse of fuse inside in case the fracture just must change new fuse again, can not used repeatedly, the resource has seriously been wasted, do not possess energy-concerving and environment-protective effect, and how to make power protection device can reuse the waste that reduces the resource becomes an important problem, therefore we have proposed a power protection device who avoids the too big fuse of leading to of electric current to burn.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the power protection device for avoiding the fuse wire from being burnt due to overlarge current, which has the advantages that the power protection device can be repeatedly used and the waste of resources is reduced, and solves the problems that in the prior art, when the current passing through the inside of a fuse is large, the fuse wire inside the fuse wire can automatically break, so that a circuit is broken and a circuit is protected, but the fuse wire inside the fuse wire is required to be replaced with a new fuse wire once the fuse wire is broken, the fuse wire cannot be repeatedly used, resources are seriously wasted, and the power protection device does not have the functions of energy conservation and environmental protection.

(II) technical scheme

In order to achieve the purpose that the power protection device can be repeatedly used and waste of resources is reduced, the invention provides the following technical scheme: an electric power protection device for avoiding a fuse wire from being burnt due to overlarge current comprises a shell, wherein an electromagnetic device is fixedly connected to the bottom inside the shell, a rotating disc is movably connected inside the shell, a reset elastic sheet is fixedly connected inside the rotating disc, an electromagnet is fixedly connected inside the right side of the rotating disc, an arc-shaped groove is formed in the top of the rotating disc, a fixed plate is fixedly connected inside the shell, a fixed contact is fixedly connected to the top of the fixed plate, a vertical rod is slidably connected inside the fixed plate, a movable plate is movably connected to the top of the vertical rod, a connecting rod is fixedly connected to the top of the movable plate, a limiting plate is fixedly connected to one side, away from the movable plate, of the connecting rod, a first spring is fixedly connected to the top of the limiting plate, a transverse plate is movably connected to the bottom of the, the right side swing joint of casing has the pull rod, the left side fixedly connected with gag lever post of pull rod, the outer wall fixedly connected with spring two of gag lever post.

Preferably, the electromagnetic device is connected in series in the power circuit, the electromagnet is arranged at the upper right of the electromagnetic device, and the electromagnet is made of a nickel-chromium alloy material.

Preferably, the bottom of the vertical rod is movably connected inside the arc-shaped groove.

Preferably, one side of the first spring, which is far away from the limiting plate, is fixedly connected to the top inside the shell, and the structure inside the shell is symmetrical in the left-right center.

Preferably, the bottom of the movable contact is movably connected with the top of the fixed contact, and the movable contact and the fixed contact are connected in series in the power circuit.

Preferably, the inclination angle of the bottom of the left side of the limiting rod is the same as the inclination angle of the top of the right side of the limiting plate.

Preferably, one side of the second spring, which is far away from the limiting rod, is fixedly connected to the inner part of the right side of the shell.

(III) advantageous effects

Compared with the prior art, the invention provides the power protection device for avoiding the burning of the fuse wire caused by overlarge current, and the power protection device has the following beneficial effects:

1. this avoid electric current too big electric power protection device that leads to fuse to burn out uses through electromagnetic means and rolling disc, montant, diaphragm, movable contact, fixed contact's cooperation, and when electric current was too big among the power circuit, electromagnetic means magnetic field intensity rose this moment, further made the rolling disc rotate clockwise, and the montant drives the diaphragm upward movement this moment, further makes movable contact and fixed contact separation to the effect that prevents the electric current too big electric element that burns out has been reached.

2. This avoid electric power protection device that electric current too big leads to fuse to burn out uses through the cooperation of pull rod and spring two, limiting plate, diaphragm, movable contact, fixed contact, stimulates the pull rod right, and spring two drive limiting plate downstream this moment further makes the diaphragm drive movable contact downstream, and movable contact and fixed contact this moment to electric power protection device has been reached and can used repeatedly the effect that reduces the wasting of resources.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present invention;

FIG. 2 is a front view of the rotary plate structure of the present invention;

FIG. 3 is a schematic front view of a limiting plate structure according to the present invention;

FIG. 4 is a schematic front view of a movable plate structure according to the present invention;

FIG. 5 is a schematic view of the structure of the position limiting plate according to the present invention after movement.

In the figure: 1. a housing; 2. an electromagnetic device; 3. rotating the disc; 4. resetting the elastic sheet; 5. an electromagnet; 6. an arc-shaped slot; 7. a fixing plate; 8. a fixed contact; 9. a vertical rod; 10. a movable plate; 11. a connecting rod; 12. a limiting plate; 13. a first spring; 14. a transverse plate; 15. a movable contact; 16. a pull rod; 17. a limiting rod; 18. and a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an electric power protection device for avoiding the burnout of a fuse wire due to an excessive current comprises a housing 1, wherein the structure inside the housing 1 is symmetrical in the left-right center, an electromagnetic device 2 is fixedly connected to the bottom inside the housing 1, the electromagnetic device 2 is connected in series in a power circuit, a rotating disc 3 is movably connected inside the housing 1, a reset spring plate 4 is fixedly connected inside the rotating disc 3, an electromagnet 5 is fixedly connected inside the right side of the rotating disc 3, the electromagnet 5 is arranged above the right side of the electromagnetic device 2, the electromagnet 5 is made of a nickel-chromium alloy material, an arc-shaped groove 6 is formed in the top of the rotating disc 3, a fixed plate 7 is fixedly connected inside the housing 1, a fixed contact 8 is fixedly connected to the top of the fixed plate 7, a vertical rod 9 is slidably connected inside the fixed plate 7, the bottom of the vertical rod 9 is movably connected inside the arc-, the top of the movable plate 10 is fixedly connected with a connecting rod 11, one side of the connecting rod 11, which is far away from the movable plate 10, is fixedly connected with a limiting plate 12, the top of the limiting plate 12 is fixedly connected with a first spring 13, the bottom of the limiting plate 12 is movably connected with a transverse plate 14, one side of the first spring 13, which is far away from the limiting plate 12, is fixedly connected with the top of the interior of the shell 1, the bottom of the transverse plate 14 is fixedly connected with a movable contact 15, the bottom of the movable contact 15 is movably connected with the top of the fixed contact 8, the movable, the right side swing joint of casing 1 has pull rod 16, and pull rod 16's left side fixedly connected with gag lever post 17, the inclination of gag lever post 17 left side bottom is the same with the inclination at limiting plate 12 right side top, and the outer wall fixedly connected with spring two 18 of gag lever post 17, one side fixed connection that gag lever post 17 was kept away from to spring two 18 is in the inside on casing 1 right side.

Detailed description referring to fig. 1 and 2, when the current in the power circuit is too large, the bottom inside the housing 1 is fixedly connected with the electromagnetic device 2, the electromagnetic device 2 is connected in series in the power circuit, so the magnetic field intensity of the electromagnetic device 2 is increased at this time, the electromagnet 5 is a nichrome material because the electromagnet 5 is arranged at the upper right side of the electromagnetic device 2, the electromagnet 2 attracts the electromagnet 5 downwards at this time, the rotating disc 3 rotates clockwise at this time because the electromagnet 5 is fixedly connected inside the right side of the rotating disc 3, and the arc-shaped groove 6 is formed in the top of the rotating disc 3, so the arc-shaped groove 6 also rotates clockwise at this time.

Referring to fig. 4 and 5 for details, the bottom of the vertical rod 9 is movably connected inside the arc-shaped groove 6, so that the vertical rod 9 moves upward, the top of the vertical rod 9 is movably connected with the movable plate 10, so that the movable plate 10 also moves upward, and the top of the movable plate 10 is fixedly connected with the connecting rod 11, and the side of the connecting rod 11 far away from the movable plate 10 is fixedly connected with the limiting plate 12, so that the limiting plate 12 also moves upward.

Because the inclination angle of gag lever post 17 left side bottom is the same with the inclination angle at the top of gag lever post 12 right side again, so the gag lever post 12 can move the top of gag lever post 17 this moment, again because the outer wall fixedly connected with spring two 18 of gag lever post 17, one side fixed connection that gag lever post 17 was kept away from to spring two 18 is in the inside on casing 1 right side, so when the top of gag lever post 17 is moved to limiting plate 12, gag lever post 17 can block in the bottom of gag lever post 12 this moment, and limiting plate 12 can't the downstream this moment.

Because the top of the movable plate 10 is fixedly connected with the connecting rod 11, and one side of the connecting rod 11, which is far away from the movable plate 10, is fixedly connected with the limiting plate 12, the movable plate 10 also moves upwards for a certain distance at the moment, and because the bottom of the limiting plate 12 is movably connected with the transverse plate 14, the transverse plate 14 also moves upwards for a certain distance at the moment, and because the bottom of the transverse plate 14 is fixedly connected with the movable contact 15, and the bottom of the movable contact 15 is movably connected with the top of the fixed contact 8, the movable contact 15 can be separated from the fixed contact 8 at the moment, and because the movable contact 15 and the fixed contact 8 are connected in series in the power circuit, the power circuit can be broken at the moment, so that the effect.

When the current in the power circuit returns to normal, because electromagnetic means 2 is established ties in the power circuit, so electromagnetic means 2 is uncharged when the power circuit breaks, because the inside fixedly connected with of rolling disc 3 resets shell fragment 4 again, so rolling disc 3 can reset this moment, further makes arc wall 6 reset.

Pulling the pull rod 16 rightwards at this moment, because the left side fixedly connected with gag lever post 17 of pull rod 16, so gag lever post 17 is not receiving the supporting force effect of pull rod 16 this moment, again because the top fixedly connected with spring 13 of limiting plate 12, one side fixed connection that limiting plate 12 was kept away from to spring 13 is at the inside top of casing 1, so limiting plate 12 can downstream under the effect of spring 13 this moment, limiting plate 12 extrudees diaphragm 14 downwards this moment, further make movable contact 15 and fixed contact 8 contact, power circuit resumes the route this moment, thereby reached the effect that power protection device can used repeatedly and reduce the wasting of resources.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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.