CN110797221B - Automatic electric smelting body device of changing of circuit overload protection - Google Patents
Automatic electric smelting body device of changing of circuit overload protection Download PDFInfo
- Publication number
- CN110797221B CN110797221B CN201911087999.7A CN201911087999A CN110797221B CN 110797221 B CN110797221 B CN 110797221B CN 201911087999 A CN201911087999 A CN 201911087999A CN 110797221 B CN110797221 B CN 110797221B
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- Prior art keywords
- block
- movable rod
- overload protection
- mounting
- conductive
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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
- H01H9/10—Adaptation for built-in fuses
- H01H9/102—Fuses mounted on or constituting the movable contact parts of the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
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- Fuses (AREA)
Abstract
The invention relates to the technical field of circuit current, and discloses a circuit overload protection automatic electric smelting body replacing device which comprises a mounting frame, wherein a gear is meshed in an inner cavity at the top of the mounting frame, a movable rod is fixedly connected to the bottom of the gear, a first conductive block is movably connected to the outer side of the movable rod, an electric smelting body is fixedly connected to one end, far away from the mounting frame, of the first conductive block, an installation block is movably connected to the bottom of the movable rod, an installation support is installed between the installation block and the mounting frame, a limiting groove is formed in the outer side of the installation support, a group of overload protection mechanisms are formed by the movable rod, the first conductive block, the second conductive block, the installation block and the electric smelting body, the movable rod drives the gear to rotate through the matching use of the movable rod, the gear and the mounting frame, and simultaneously drives the overload protection mechanism with the electric smelting body to melt to move, thereby the effect that the overload protection mechanism that makes electric fuse body fuse removes more electric fuse body has been reached.
Description
Technical Field
The invention relates to the technical field of circuit current, in particular to a device for automatically replacing an electric melting body for circuit overload protection.
Background
The circuit overload protection device is used for disconnecting a circuit when the circuit has abnormal faults such as overload, short circuit and the like, and avoiding the circuit or corresponding electrical equipment from being damaged.
The current commonly used circuit overload protection device is generally based on that a bimetallic strip is heated to deform and finally enables a fixed contact to be separated, so that the purpose of disconnecting a circuit is achieved, but the elastic recovery of the bimetallic strip is limited, the bimetallic strip is likely to bounce and fatigue after the elastic recovery limit is exceeded, or a protection switch cannot normally work due to contact fusion and adhesion caused by abnormal current, and a melt fusing protection circuit is adopted, so that the circuit and corresponding electrical equipment can be effectively prevented from being damaged, the safety performance is better, but the melt fusing needs to be manually replaced every time the circuit is overloaded, and the circuit overload is very troublesome.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for automatically replacing an electric fuse body for circuit overload protection, which has the advantage of automatically replacing the electric fuse body and solves the problem of manual replacement.
(II) technical scheme
In order to realize the purpose of automatically replacing the electric fuse body, the invention provides the following technical scheme: an automatic electric melting body replacing device for circuit overload protection comprises a mounting rack, a gear is meshed in an inner cavity at the top of the mounting rack, the bottom of the gear is fixedly connected with a movable rod, the outer side of the movable rod is movably connected with a first conductive block, one end of the first conductive block, which is far away from the mounting frame, is fixedly connected with an electric fuse body, the bottom of the movable rod is movably connected with a mounting block, a mounting bracket is arranged between the mounting block and the mounting bracket, a limiting groove is arranged on the outer side of the mounting bracket, one end of the mounting block, which is far away from the mounting frame, is fixedly connected with a second conductive block, a second spring is fixedly mounted in an inner cavity at the bottom of the second conductive block, the bottom of the second spring is fixedly provided with a conductive contact, the outer side of the bottom of the mounting rack is fixedly connected with a conductive sheet, the movable rod, the first conductive block, the second conductive block, the mounting block and the electric melting body form a group of overload protection mechanisms.
Preferably, the outer side of the movable rod is provided with a thread, the first conductive block is provided with a threaded hole, and the thread is matched with the threaded hole, so that the movable rod 3 can rotate along with the rising of the first conductive block 4.
Preferably, the two ends of the electric fuse body are respectively connected with the first conducting block and the second conducting block, and the electric fuse body 5 can be fused under the condition of circuit overload.
Preferably, the limiting groove is matched with the mounting block, so that the overload protection mechanisms are uniformly distributed.
Preferably, a first spring is connected between the first conductive block and the mounting block, and the first spring is in a contracted state.
Preferably, the first conductive blocks are uniformly distributed on the outer side of the mounting frame, an arc-shaped sliding block is fixedly connected to one side, close to the mounting frame, of the first conductive blocks, and the arc-shaped sliding block is matched with the mounting frame.
Preferably, the bottom of movable rod is smooth spherical, the guiding groove has been seted up to the upper surface of the bottom of mounting bracket, the bottom looks adaptation of guiding groove and movable rod makes movable rod 3 can follow the guiding groove and remove.
Advantageous effects
Compared with the prior art, the invention provides a device for automatically replacing an electric melting body for circuit overload protection, which has the following beneficial effects:
1. this automatic electric smelting body device of changing of circuit overload protection, cooperation through first spring and first conducting block is used, thereby when having reached electric smelting body fusing, make first conducting block upward movement's effect, cooperation through between first conducting block and the movable rod is used, thereby reached and made the rotatory effect of movable rod, through the movable rod, the cooperation of gear and mounting bracket is used, it is rotatory to make the movable rod drive the gear, the gear drives the overload protection mechanism of electric smelting body fusing again simultaneously and removes, thereby reached and made the overload protection mechanism of electric smelting body fusing remove the effect of more trading the electric smelting body.
2. This automatic electric smelting body device of changing of circuit overload protection, through first conducting block, the cooperation of mounting bracket is used, thereby reached and made the movable rod effect that keeps stable when moving, through the guiding groove of seting up bottom the mounting bracket, make the movable rod along the mounting bracket rotatory more stable, use through the cooperation of installing support and installation piece, make the relative position between the movable rod fixed, make the installation piece on the installing support simultaneously can synchronous motion, thereby reached the effect that makes a plurality of overload protection mechanism synchronous motion.
3. This automatic electric smelting body device of changing of circuit overload protection, through the cooperation use of second spring and conductive contact, conductive contact makes conductive contact and conducting strip fully contact under the effect of second spring, has avoided producing contact failure phenomenon easily after many times conductive contact and conducting strip multiple contact to reach the effect that makes conductive contact fully contact, prolonged circuit protection device's life, improved overload protection device's stability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the gear structure of the present invention;
FIG. 3 is a schematic diagram of a first conductive block structure according to the present invention;
FIG. 4 is a schematic view of the mounting bracket of the present invention;
fig. 5 is a schematic view of a conductive contact structure according to the present invention.
In the figure: the device comprises a mounting frame 1, a gear 2, a movable rod 3, a first conductive block 4, an electric fuse 5, a mounting block 6, a second conductive block 7, a conductive sheet 8, a thread 9, a first spring 10, a mounting bracket 11, a limiting groove 12, a threaded hole 13, a second spring 14 and a conductive contact 15.
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 automatic electric fuse replacing device for circuit overload protection comprises a mounting frame 1, a gear 2 engaged in an inner cavity of a top of the mounting frame 1, a movable rod 3 fixedly connected to a bottom of the gear 2, the movable rod 3 driving the gear 2 to rotate through cooperation of the movable rod 3, the gear 2 and the mounting frame 1, the gear 2 driving an overload protection mechanism fusing the electric fuse 5 to move, a bottom end of the movable rod 3 being smooth and spherical, a guide groove formed on an upper surface of the bottom of the mounting frame 1, the guide groove being adapted to a bottom end of the movable rod 3, the movable rod 3 being movable along the guide groove, a thread 9 formed on an outer side of the movable rod 3, a threaded hole 13 formed on a first conductive block 4, the thread 9 being adapted to the threaded hole 13, the movable rod 3 being capable of rotating with an ascending of the first conductive block 4, the outer side of the movable rod 3 being movably connected to the first conductive block 4, the first conductive blocks 4 are uniformly distributed on the outer side of the mounting frame 1, one side of each first conductive block 4, which is close to the mounting frame 1, is fixedly connected with an arc-shaped sliding block, the arc-shaped sliding blocks are matched with the mounting frame 1, a first spring 10 is connected between each first conductive block 4 and the corresponding mounting block 6, and the first spring 10 is matched with the first conductive block 4 for use, so that when the electrofusion body 5 is fused, the first conductive block 4 moves upwards, and the movable rod 3 rotates through the matching use between the first conductive block 4 and the movable rod 3, the first spring 10 is in a contraction state, one end, which is far away from the mounting frame 1, of each first conductive block 4 is fixedly connected with the electrofusion body 5, two ends of the electrofusion body 5 are respectively connected with the first conductive blocks 4 and the second conductive blocks 7, the electrofusion body 5 can be fused under the condition of a circuit overload, the bottom of the movable rod 3 is movably connected with the mounting blocks 6, a mounting bracket 11 is arranged between the mounting block 6 and the mounting frame 1, a limiting groove 12 is arranged on the outer side of the mounting bracket 11, the limiting groove 12 is matched with the mounting block 6, so that the overload protection mechanisms are uniformly distributed, the relative position between the movable rods 3 is fixed by the matching use of the mounting bracket 11 and the mounting block 6, and simultaneously the mounting block 6 on the mounting bracket 11 can move synchronously, thereby reached the effect that makes a plurality of overload protection mechanism simultaneous movement, the one end fixedly connected with second conducting block 7 of mounting bracket 1 is kept away from to installation piece 6, the bottom inner chamber fixed mounting of second conducting block 7 has second spring 14, the bottom fixed mounting of second spring 14 has conductive contact 15, the bottom outside fixedly connected with conducting strip 8 of mounting bracket 1, movable rod 3, first conducting block 4, second conducting block 7, a set of overload protection mechanism is constituteed to installation piece and electric fuse-element 5.
The working principle is as follows: when the circuit is overloaded, the fused body 5 between the first conductive block 4 and the second conductive block 7 is fused, the fused body 5 moves upwards under the elastic action of the first spring 10, when the fused body passes through the area of the movable rod 3 with the thread 9, the first conductive block 4 drives the movable rod 3 to rotate through the thread 9, the movable rod 3 rotates to drive the gear 2 to rotate, the gear 2 is meshed with the mounting rack 1, the gear 2 rotates and moves along the cavity wall in the mounting rack 1, and drives the whole overload protection mechanism fused with the fused body 5 to rotate around the mounting rack 1, so that the overload protection mechanism fused with the whole fused body 5 is separated from the conductive sheet 8, the teeth on the cavity wall in the mounting rack 1 drive the rest overload protection mechanisms to rotate, the mounting rack 11 enables the rest overload protection mechanisms to keep stable in the moving process, and the overload protection mechanism group integrally rotates, the intact overload protection mechanism rotates to the position right above the conducting strip 8, so that the conducting contact 15 on the second conducting block 7 with the intact electrofusion 5 is contacted with the conducting strip 8, the second spring 14 at the top of the conducting contact 15 enables the conducting contact 15 to be fully contacted with the conducting strip 8, and the aim of automatically replacing the electrofusion 5 by the overload protection device is fulfilled.
To sum up, this automatic more trades electric melt 5 device of circuit overload protection, cooperation through first spring 10 and first conducting block 4 is used, thereby when having reached electric melt 5 fusing, make the effect of first conducting block 4 upward movement, cooperation through between first conducting block 4 and the movable rod 3 is used, thereby reached and made the rotatory effect of movable rod 3, through movable rod 3, the cooperation of gear 2 and mounting bracket 1 is used, it is rotatory to make movable rod 3 drive gear 2, gear 2 drives the overload protection mechanism removal of electric melt 5 fusing again simultaneously, thereby reached the overload protection mechanism removal that makes electric melt 5 fusing and more trades the purpose of electric melt 5.
And, this automatic more trades electric fuse body 5 device of circuit overload protection, through first conducting block 4, mounting bracket 1's cooperation is used, thereby reached and made 3 effect that keep stable when moving of movable rod, the guiding groove of seting up through mounting bracket 1 bottom, it is more stable to make 3 rotatory along mounting bracket 1 of movable rod, cooperation through installing support 11 and installing block 6 is used, make the relative position between the movable rod 3 fixed, make installing block 6 on the installing support 11 simultaneously can synchronous motion, thereby reached and made a plurality of overload protection mechanism synchronous motion's effect.
In addition, the circuit overload protection automatic replacement device for the electrofusion body 5 is characterized in that the second spring 14 and the conductive contact 15 are matched for use, the conductive contact 15 enables the conductive contact 15 to be in full contact with the conductive sheet 8 under the action of the second spring 14, the phenomenon of poor contact easily caused after the conductive contact 15 is in multiple contact with the conductive sheet 8 is avoided, the effect of enabling the conductive contact 15 to be in full contact is achieved, the service life of the circuit protection device is prolonged, and the stability of the overload protection device is improved.
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.
Claims (1)
1. The utility model provides an automatic electric smelting body device of changing of circuit overload protection, includes mounting bracket (1), its characterized in that: the gear (2) is meshed in the inner cavity of the top of the mounting rack (1), the movable rod (3) is fixedly connected to the bottom of the gear (2), the first conductive block (4) is movably connected to the outer side of the movable rod (3), the electric fuse body (5) is fixedly connected to one end, away from the mounting rack (1), of the first conductive block (4), the mounting block (6) is movably connected to the bottom of the movable rod (3), the mounting support (11) is installed between the mounting block (6) and the mounting rack (1), the limiting groove (12) is formed in the outer side of the mounting support (11), the second conductive block (7) is fixedly connected to one end, away from the mounting rack (1), of the mounting block (6), the second spring (14) is fixedly installed in the inner cavity of the second conductive block (7), and the conductive contact (15) is fixedly installed in the bottom of the second spring (14), the outer side of the bottom of the mounting rack (1) is fixedly connected with a conducting strip (8);
the outer side of the movable rod (3) is provided with a thread (9), the first conductive block (4) is provided with a threaded hole (13), and the thread (9) is matched with the threaded hole (13);
two ends of the electric melting body (5) are respectively connected with the first conductive block (4) and the second conductive block (7);
the limiting groove (12) is matched with the mounting block (6); a first spring (10) is connected between the first conductive block (4) and the mounting block (6), and the first spring (10) is in a contraction state when the electrofusion body (5) is not fused;
the first conductive blocks (4) are uniformly distributed on the outer side of the mounting frame (1), one side, close to the mounting frame (1), of each first conductive block (4) is fixedly connected with an arc-shaped sliding block, and the arc-shaped sliding blocks are matched with the mounting frame (1);
the bottom end of the movable rod (3) is smooth and spherical, a guide groove is formed in the upper surface of the bottom of the mounting rack (1), and the guide groove is matched with the bottom end of the movable rod (3);
when the circuit is overloaded, the electric melting body (5) between the first conductive block (4) and the second conductive block (7) is fused, the fused first conductive block (4) of the electric melting body (5) moves upwards under the elastic action of the first spring (10), when the fused first conductive block passes through the area of the movable rod (3) provided with the thread (9), the first conductive block (4) drives the movable rod (3) to rotate through the thread (9), the movable rod (3) rotates to drive the gear (2) to rotate, because the gear (2) is meshed and connected with the mounting rack (1), the gear (2) rotates and moves along the inner cavity wall of the mounting rack (1), and drives the whole overload protection mechanism fused with the electric melting body (5) to rotate around the conductive sheet (1), the whole overload protection mechanism fused with the electric melting body (5) is separated from the conductive sheet (8), teeth on the inner cavity wall of the mounting rack (1) drive the rest overload protection mechanisms to rotate, the mounting support (11) enables other overload protection mechanisms to be kept stable in the moving process, through the integral rotation of the overload protection mechanism group, the intact overload protection mechanism rotates to the position right above the conducting strip (8), a conducting contact (15) on a second conducting block (7) with intact electrofusion (5) is contacted with the conducting strip (8), a second spring (14) at the top of the conducting contact (15) enables the conducting contact (15) to be fully contacted with the conducting strip (8), and the aim of automatically replacing the electrofusion (5) by the overload protection device is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087999.7A CN110797221B (en) | 2019-11-08 | 2019-11-08 | Automatic electric smelting body device of changing of circuit overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911087999.7A CN110797221B (en) | 2019-11-08 | 2019-11-08 | Automatic electric smelting body device of changing of circuit overload protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110797221A CN110797221A (en) | 2020-02-14 |
| CN110797221B true CN110797221B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911087999.7A Active CN110797221B (en) | 2019-11-08 | 2019-11-08 | Automatic electric smelting body device of changing of circuit overload protection |
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| CN (1) | CN110797221B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113189380A (en) * | 2021-05-05 | 2021-07-30 | 韩芳 | Application method of intelligent electric meter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015185275A (en) * | 2014-03-20 | 2015-10-22 | 中国電力株式会社 | fuse holder |
| CN206546806U (en) * | 2017-03-07 | 2017-10-10 | 石生华 | A kind of distribution network operation troubles auto-power-off device |
| CN109216130A (en) * | 2018-11-10 | 2019-01-15 | 国网河南省电力公司修武县供电公司 | A kind of fuse apparatus |
| CN110047714A (en) * | 2019-05-19 | 2019-07-23 | 梅厚凤 | Safety governor applied to circuit overloads protection |
-
2019
- 2019-11-08 CN CN201911087999.7A patent/CN110797221B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015185275A (en) * | 2014-03-20 | 2015-10-22 | 中国電力株式会社 | fuse holder |
| CN206546806U (en) * | 2017-03-07 | 2017-10-10 | 石生华 | A kind of distribution network operation troubles auto-power-off device |
| CN109216130A (en) * | 2018-11-10 | 2019-01-15 | 国网河南省电力公司修武县供电公司 | A kind of fuse apparatus |
| CN110047714A (en) * | 2019-05-19 | 2019-07-23 | 梅厚凤 | Safety governor applied to circuit overloads protection |
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| Publication number | Publication date |
|---|---|
| CN110797221A (en) | 2020-02-14 |
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Effective date of registration: 20211011 Address after: 102400 no.1-y280, area 1, Guba Road, Chengguan Street, Fangshan District, Beijing Applicant after: Beijing kangjisen Technology Co.,Ltd. Address before: 1105, science and technology finance building, 27 Wenxuan Road, Yuelu District, Changsha, Hunan 410000 Applicant before: Peng Bo |
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