CN111092003A - High-breaking magnetic latching relay - Google Patents
High-breaking magnetic latching relay Download PDFInfo
- Publication number
- CN111092003A CN111092003A CN202010133299.3A CN202010133299A CN111092003A CN 111092003 A CN111092003 A CN 111092003A CN 202010133299 A CN202010133299 A CN 202010133299A CN 111092003 A CN111092003 A CN 111092003A
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- China
- Prior art keywords
- plate
- contact
- movable contact
- bending
- magnetic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A high-breaking magnetic latching relay comprises a body shell, a cover, a fixed contact, a movable contact, a current conducting plate, a magnetic holding device, a U-shaped pin, a tension spring, an arc striking plate and an arc extinguishing chamber, wherein the fixed contact, the movable contact, the current conducting plate, the magnetic holding device, the U-shaped pin, the tension spring, the arc striking plate and the arc extinguishing chamber are installed inside the body shell, the current conducting plate is connected with the movable contact in a rotating contact mode, the current conducting plate is connected with the movable contact at one end, the arc extinguishing chamber is arranged between the fixed contact and the arc striking plate, the other end of the fixed contact extends out of the body shell, a bending portion vertically extends out of one side of the movable contact along the opposite direction of the contact, a waist round hole is formed in the bending portion, one end, connected with the movable contact, of the U-shaped pin extends into. The scheme has strong arc extinguishing capability and simple and reliable structure.
Description
Technical Field
The invention belongs to the technical field of low-voltage electrical appliances, and particularly relates to a high-breaking magnetic latching relay which is applied to electrical equipment such as a contactor, a release, a protector and the like.
Background
The magnetic latching relay is widely applied to electronic equipment such as an electronic electric energy meter, an intelligent household switch and the like, is often used as a switch for opening and closing a main circuit, when the switch is disconnected with load current, electric arcs can be generated on a switch contact, particularly when the switch is disconnected when short circuit occurs, the generated electric arcs are very large, the switch is easy to burn, and particularly all the magnetic latching relays on the market at present have no arc extinguishing capacity, so that great potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a high-breaking magnetic latching relay, which solves the defects of the prior art and can realize the arc extinguishing capability after breaking short-circuit current.
In order to achieve the above purpose and solve the above technical problems, the technical solution of the present invention is:
a high-breaking magnetic latching relay comprises a body shell, a cover, a fixed contact, a movable contact, a current conducting plate, a magnetic holding device, a U-shaped pin, a tension spring, an arc striking plate and an arc extinguishing chamber, wherein the fixed contact, the movable contact, the current conducting plate, the magnetic holding device, the U-shaped pin, the tension spring, the arc striking plate and the arc extinguishing chamber are installed inside the body shell, the current conducting plate is connected with the movable contact in a rotating contact mode, the current conducting plate is connected with the movable contact at one end, the arc extinguishing chamber is arranged between the fixed contact and the arc striking plate, the other end of the fixed contact extends out of the body shell, a bending portion vertically extends out of one side of the movable contact along the opposite direction of the contact, a waist round hole is formed in the bending portion, one end, connected with the movable contact, of the U-shaped pin extends into.
The magnetic holding device comprises a coil framework, a coil wound on the coil framework, a static iron core penetrating through the coil framework, magnetic conduction plates symmetrically arranged at two ends of the static iron core and connected with the static iron core, side plates arranged at two sides of the width direction of the magnetic conduction plates, and a movable iron core, wherein two ends of the movable iron core are in magnetic contact with the magnetic conduction plates and can rotate around the side plates at two sides.
The movable iron core comprises a shell, a permanent magnet arranged inside the shell and magnetic pole plates arranged at two poles of the permanent magnet and with magnetic poles extending out of the shell, wherein one end of the shell extends and is provided with a through hole.
The moving contact comprises a moving contact plate, a contact arranged on one surface of the moving contact plate, a boss arranged on one side, a waist-shaped hole formed in the boss, a square groove formed in the bottom of the moving contact plate and a chamfer arranged at the top of the moving contact plate.
The bottom end face of the movable contact plate is an arc surface.
Run on the arc board include first bending portion, the second that links to each other with first bending portion one end bend the portion and with the second third bending portion that the portion one end links to each other, first bending portion and the second bending portion bend in the contained angle be 120 degrees, the second bending portion and the third bending portion bend in the contained angle be 125 degrees.
One side of the conducting plate is provided with an arc groove matched with the arc surface of the bottom end surface of the movable contact plate.
Compared with the prior art, the invention has the following positive effects: the high-breaking magnetic latching relay has the advantages that on the basis of the traditional magnetic latching relay, by improving the contact system and adding the function of the arc extinguish chamber, the high-breaking magnetic latching relay has strong arc extinguishing capability under the condition of breaking large current, and has the characteristics of simple structure and reliability.
Drawings
Fig. 1 is a perspective view of the present embodiment.
Fig. 2 is a perspective view of the hidden cover of the present embodiment.
Fig. 3 is a plan view of the off state of the present embodiment.
Fig. 4 is a plan view during closing of the present embodiment.
Fig. 5 is a plan view of the closed state of the present embodiment.
Fig. 6 is a plan view during disconnection in the present embodiment.
Fig. 7 is a perspective view of the magnetic holding device of the present embodiment.
Fig. 8 is a side view of the magnetic holding device of the present embodiment.
Fig. 9 is a sectional view of the magnetic holding device of the present embodiment.
Fig. 10 is a perspective view of the movable contact of the present embodiment.
Fig. 11 is a plan view of the arc starting plate of the present embodiment.
In the figure: 1. the magnetic switch comprises a body shell, 2, a cover, 3, a fixed contact, 4, a movable contact, 5, a U-shaped pin, 6, a conductive plate, 7, a tension spring, 8, a magnetic holding device, 9, an arc striking plate, 10, an arc extinguishing chamber, 41, a movable contact plate, 42, a contact, 43, a boss, 44, a kidney-shaped hole, 45, a square groove, 46, a chamfer, 81, a coil framework, 82, a coil, 83, a static iron core, 84, a magnetic conductive plate, 85, a side plate, 86, a movable iron core, 91, a first bending part, 92, a second bending part, 93, a third bending part, 861, a shell, 862, a permanent magnet, 863, a magnetic pole plate, 864 and a through hole.
Detailed Description
The present invention will be described with reference to the following embodiments and accompanying drawings.
Referring to FIGS. 1-11:
a high-breaking magnetic latching relay comprises a body shell 1, a cover 2, a static contact 3, a movable contact 4, a current conducting plate 6, a magnetic retaining device 8, a U-shaped pin 5, a tension spring 7, an arc striking plate 9 and an arc extinguishing chamber 10, wherein the static contact 3, the magnetic retaining device 8, the U-shaped pin 5, the tension spring 7, the arc striking plate 9 and the arc extinguishing chamber 10 are installed inside the body shell 1, the static contact 4 is connected with the movable contact 4, the current conducting plate 6 is connected with the other end of the current conducting plate, the arc extinguishing chamber 10 is arranged between the static contact 3 and the arc striking plate 9, one end of the static contact 3 extends into the arc extinguishing chamber 10, the other end of the arc striking plate 9 extends into the arc extinguishing chamber 10, the other end of the arc striking plate extends into the movable contact 4, one end of the conductive plate 6 far away from the movable contact 4 extends out of the shell 1.
The magnetic holding device 8 includes a coil frame 81, a coil 82 wound around the coil frame 81, a stationary core 83 passing through the coil frame 81, magnetic conductive plates 84 symmetrically disposed at two ends of the stationary core 83 and connected to the stationary core 83, side plates 85 disposed at two sides of the width direction of the magnetic conductive plates 84, and a movable core 86 having two ends magnetically contacted with the magnetic conductive plates 84 and capable of rotating around the side plates 85 at two sides.
The movable iron core 86 comprises a shell 861, a permanent magnet 862 arranged in the shell 861 and a magnetic pole plate 863 arranged at two poles of the permanent magnet 862 and having magnetic poles extending out of the shell 861, wherein one end of the shell 861 extends and is provided with a through hole 864.
The moving contact 4 comprises a moving contact plate 41, a contact 42 arranged on one surface of the moving contact plate 41, a boss 43 arranged on one side, a kidney-shaped hole 44 formed on the boss 43, a square groove 45 formed at the bottom of the moving contact plate 41 and a chamfer 46 arranged at the top of the moving contact plate 41.
The bottom end surface of the movable contact plate 41 is a circular arc surface.
Run-on plate 9 include first portion of bending 91, the second portion of bending 92 that links to each other with first portion of bending 91 one end and the third portion of bending 93 that links to each other with second portion of bending 92 one end, first portion of bending 91 and the second portion of bending 92 in the contained angle be 120 degrees, the second portion of bending 92 and the third portion of bending 93 in the contained angle be 125 degrees.
One side of the conducting plate 6 is provided with an arc groove which is matched with the arc surface of the bottom end surface of the movable contact plate 41.
See fig. 3 and 6 for an illustration:
a coil 82 in a magnetic holding device 8 in the magnetic holding relay is energized with a forward voltage, so that a movable iron core 86 is positioned at a position after counterclockwise rotation and is kept at the position after the movement, meanwhile, the movable iron core 86 pulls the movable contact 4 through a U-shaped pin 5, the movable contact 4 rotates towards a direction away from a static contact 3, after the movable contact 4 rotates for a certain angle (after the movable contact 4 rotates clockwise to pass a dead point), the movable contact continues to rotate under the action of the tension of a tension spring 7, and then the shell 1 stops limiting, so that the magnetic holding relay is positioned at a disconnected position.
See fig. 4-5 for an illustration:
a coil 82 in a magnetic holding device 8 in the magnetic holding relay is energized with reverse voltage, so that a movable iron core 86 is positioned at a position after clockwise rotation and is kept at the position after the action, meanwhile, the movable iron core 86 pushes a movable contact 4 to rotate towards a direction close to a static contact 3 through a U-shaped pin 5, after the movable contact 4 rotates for a certain angle (after the movable contact 4 rotates anticlockwise to a dead point), the movable contact continues to rotate under the action of tension of a tension spring 7 until the movable contact 4 is contacted with the static contact 3, and the magnetic holding relay is positioned at a closed position.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all the minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (7)
1. A high-breaking magnetic latching relay is characterized in that: comprises a body shell 1, a cover 2, a static contact 3, a movable contact 4, a conductive plate 6, a magnetic retaining device 8, a U-shaped pin 5, a tension spring 7, an arc striking plate 9 and an arc extinguishing chamber 10, wherein the static contact 3, the movable contact 4, the conductive plate 6, the magnetic retaining device 8, the U-shaped pin 5, the tension spring 7, the arc striking plate 9 and the arc striking plate 9 are arranged in the body shell 1 and are in rotating contact connection with the movable contact 4, one end of the static contact 3 extends to the arc extinguish chamber 10, the other end extends to the outside of the shell 1, one side of the movable contact 4 vertically extends along the opposite direction of the contact 41 to form a bending part 42, the bending part 42 is provided with a waist round hole 43, one end of the U-shaped pin 5 connected with the movable contact 4 extends into the waist round hole 43, one end of the arc striking plate 9 extends to the arc extinguishing chamber 10, the other end extends to the movable contact 4, and one end of the conductive plate 6, which is far away from the movable contact 4, extends to the outside of the shell 1.
2. A high breaking magnetic latching relay according to claim 1, characterized in that: the magnetic holding device 8 includes a coil frame 81, a coil 82 wound around the coil frame 81, a stationary core 83 passing through the coil frame 81, magnetic conductive plates 84 symmetrically disposed at two ends of the stationary core 83 and connected to the stationary core 83, side plates 85 disposed at two sides of the width direction of the magnetic conductive plates 84, and a movable core 86 having two ends magnetically contacted with the magnetic conductive plates 84 and capable of rotating around the side plates 85 at two sides.
3. A high breaking magnetic latching relay according to claim 1 or 2, characterized in that: the movable iron core 86 comprises a shell 861, a permanent magnet 862 arranged in the shell 861 and a magnetic pole plate 863 arranged at two poles of the permanent magnet 862 and having magnetic poles extending out of the shell 861, wherein one end of the shell 861 extends and is provided with a through hole 864.
4. A high breaking magnetic latching relay according to claim 1, characterized in that: the moving contact 4 comprises a moving contact plate 41, a contact 42 arranged on one surface of the moving contact plate 41, a boss 43 arranged on one side, a kidney-shaped hole 44 formed on the boss 43, a square groove 45 formed at the bottom of the moving contact plate 41 and a chamfer 46 arranged at the top of the moving contact plate 41.
5. A high breaking magnetic latching relay according to claim 4, characterized in that: the bottom end surface of the movable contact plate 41 is a circular arc surface.
6. A high breaking magnetic latching relay according to claim 1, characterized in that: run-on plate 9 include first portion of bending 91, the second portion of bending 92 that links to each other with first portion of bending 91 one end and the third portion of bending 93 that links to each other with second portion of bending 92 one end, first portion of bending 91 and the second portion of bending 92 in the contained angle be 120 degrees, the second portion of bending 92 and the third portion of bending 93 in the contained angle be 125 degrees.
7. A high breaking magnetic latching relay according to claims 1 and 5, characterized in that: one side of the conducting plate 6 is provided with an arc groove which is matched with the arc surface of the bottom end surface of the movable contact plate 41.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133299.3A CN111092003A (en) | 2020-03-01 | 2020-03-01 | High-breaking magnetic latching relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133299.3A CN111092003A (en) | 2020-03-01 | 2020-03-01 | High-breaking magnetic latching relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111092003A true CN111092003A (en) | 2020-05-01 |
Family
ID=70400281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010133299.3A Pending CN111092003A (en) | 2020-03-01 | 2020-03-01 | High-breaking magnetic latching relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111092003A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113268A (en) * | 2021-04-08 | 2021-07-13 | 任国良 | Large-opening-distance high-tolerance magnetic latching relay |
| CN113990709A (en) * | 2021-10-18 | 2022-01-28 | 安徽中骄智能科技有限公司 | New forms of energy high voltage direct current relay based on syllogic separation |
-
2020
- 2020-03-01 CN CN202010133299.3A patent/CN111092003A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113268A (en) * | 2021-04-08 | 2021-07-13 | 任国良 | Large-opening-distance high-tolerance magnetic latching relay |
| CN113113268B (en) * | 2021-04-08 | 2024-03-26 | 任国良 | Large-opening-distance high-tolerance magnetic latching relay |
| CN113990709A (en) * | 2021-10-18 | 2022-01-28 | 安徽中骄智能科技有限公司 | New forms of energy high voltage direct current relay based on syllogic separation |
| CN113990709B (en) * | 2021-10-18 | 2023-12-15 | 湖南鼎力电气系统有限公司 | New energy high-voltage direct-current relay based on three-section separation |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200501 |
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| WD01 | Invention patent application deemed withdrawn after publication |