CN109243923B - High-voltage direct-current relay - Google Patents
High-voltage direct-current relay Download PDFInfo
- Publication number
- CN109243923B CN109243923B CN201811351270.1A CN201811351270A CN109243923B CN 109243923 B CN109243923 B CN 109243923B CN 201811351270 A CN201811351270 A CN 201811351270A CN 109243923 B CN109243923 B CN 109243923B
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- Prior art keywords
- magnetic
- contact
- movable
- arc
- relay
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 235000000396 iron Nutrition 0.000 claims abstract 4
- 230000003068 static effect Effects 0.000 claims description 23
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 238000005476 soldering Methods 0.000 claims description 5
- 238000010891 electric arc Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 abstract description 2
- 230000000171 quenching effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 230000008033 biological extinction Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a high-voltage direct current relay which comprises a shell, wherein a first relay magnetic circuit and a second relay magnetic circuit are arranged in the shell, each relay magnetic circuit controls a contact unit to be connected and disconnected, two contact units are distributed side by side along the X direction, side magnets are arranged on the outer sides of the contact units along the X direction, middle magnetic steel is arranged between the two contact units, magnetic conduction yoke irons are arranged on the inner sides of the two contact units so as to surround the side magnetic steel and the middle magnetic steel, the middle magnetic steel and the two side magnetic steels respectively form a magnetic field, and the magnetic conduction yoke irons, the side magnetic steel and the middle magnetic steel jointly form a reinforced parallel magnetic blow-arc extinguishing structure. The invention improves the arc breaking capacity of the contacts through multiple contact arc division and parallel magnetic arc quenching means.
Description
Technical Field
The invention discloses a high-voltage direct-current relay, which belongs to the technical field of relay manufacture according to the International Patent Classification (IPC).
Background
The electric arc is an unavoidable problem in the closing and breaking action process of the relay contact, and the service life of the relay contact is greatly reduced. If the high-voltage load above 200Vd.c. is switched, the arc cannot be reliably broken due to the too high voltage, contact ablation is easy to occur, even contact sticking failure occurs, and the use requirement of a user on the high-voltage load cannot be met.
At present, the problem of arc interruption of the relay is usually realized by developing high-temperature-resistant alloy contacts or arranging arc extinguishing chambers, such as vacuum arc extinction and magnetic arc extinction, and China literature CN204289271U provides a high-voltage direct-current relay with a magnetic arc extinction device, which comprises an outer cover, a bracket, an insulating plate, a wiring lug, a seat plate, a wiring post, contacts, a movable reed and the magnetic arc extinction device; the outer cover is arranged in the support, the wiring lug is further arranged on the side wall of the outer cover, the upper side of the outer cover is sequentially provided with an insulating plate and a seat plate, the seat plate is provided with a magnetic arc extinguishing device, and dislocation arc guiding cooling sheets are arranged on two sides of the movable reed, namely, two sides of the current direction.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-voltage direct current relay, which is characterized in that the arc breaking capacity of the contacts is improved by dividing arcs through multiple contacts and arranging parallel magnets and magnetic conductive iron sheets beside the contacts so that a magnetic field and an electric field form a parallel magnetic blow-out arc extinguishing means.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The utility model provides a high-voltage direct current relay, which comprises a housin, be equipped with first relay magnetic circuit and second relay magnetic circuit in the casing, each relay magnetic circuit control contact unit switch-on and disconnection, two contact units are along X direction distribution side by side, be equipped with the avris magnet along X direction contact unit outside, be equipped with middle magnet steel between two contact units, two contact unit inboard is equipped with magnetic conduction yoke in order to surround avris magnet steel and middle magnet steel, middle magnet steel forms the magnetic field with both sides magnet steel respectively, magnetic conduction yoke iron, avris magnet steel and middle magnet steel form reinforced parallel magnetic blow arc extinguishing structure jointly.
Further, the contact unit comprises two groups of movable contacts and static contacts, the movable contacts and the static contacts are connected in series and conducted, the two relay magnetic circuits control the four groups of movable contacts and the four groups of static contacts to form a multi-contact arc dividing structure, the current direction between the movable contacts and the static contacts and the magnetic steel form a magnetic field direction vertical layout, and an arc generated when the movable contacts and the static contacts are disconnected forms an elongated arc towards the base or away from the base under the action of magnetic field arc blowing.
Further, the movable contact of each group of movable contact and fixed contact is arranged on the movable spring, the movable spring is connected with the armature to form a fitting type movable contact, a limiting piece is arranged outside the movable contact to control the outward opening angle of the movable contact, the movable contact is in vertical relation with the plane where the limiting piece is positioned, and the limiting piece is fixedly arranged on a wire frame in the shell.
Further, the magnetic yoke is U-shaped, the bottom surface of the magnetic yoke spans each contact unit along the X direction and extends to the magnetic steel on two sides to form three-sided surrounding layout, and the U-shaped opening end surface of the magnetic yoke is higher than the contact point position of each contact unit.
Further, the first relay magnetic circuit and the second relay magnetic circuit both comprise an electromagnetic coil, the electromagnetic coil is arranged on a wire frame in the shell, the two relay magnetic circuits are electrically connected with the two coil pins after being connected in parallel through the left soldering lug and the right soldering lug, and the coil pins extend outwards of the shell to form a relay plug-in end.
Further, the casing includes base and shell, and the shell lock forms the installation space at the base, and the base is equipped with the arc extinguishing check and each moves, stationary contact corresponds in order to form the effective distance that stretches to base direction electric arc.
Further, a partition plate is formed upwards between the adjacent arc extinguishing grids, the limiting piece is arranged on the partition plate, and the movable spring is provided with a U-shaped reed part which spans the limiting piece and the partition plate.
Further, the arc extinguishing grid of the base is of a three-side annular wall structure, more than one strip-shaped groove along the X direction is formed in the bottom of the arc extinguishing grid, and the front wall and the rear wall of the strip-shaped groove form a guide inclined surface structure at intervals along the X direction.
The invention uses two sets of relay magnetic circuits to control the connection and disconnection of two sets of movable and static contacts, the movable and static contacts are connected in series, the arc is divided by multiple contacts, and three magnetic steels (or magnets) and magnetic yoke iron (magnetic iron sheet) are added beside the contacts, the left hand rule is applied, the magnetic field and the electric field form a parallel magnetic blow-out arc extinguishing means, and the arc breaking capability of the contacts is improved.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention.
FIG. 2 is a schematic illustration of the invention with the housing removed.
FIG. 3 is another schematic illustration of the invention with the housing removed.
Fig. 4 is a cross-sectional view of a contact point in accordance with an embodiment of the present invention.
Fig. 5 is a schematic representation of an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
Examples: referring to fig. 1 to 5, a high-voltage dc relay includes a housing 1, a first relay magnetic circuit 21 and a second relay magnetic circuit 22 are disposed in the housing 1, each relay magnetic circuit controls a contact unit 31, 32 to be turned on and off, the two contact units are distributed side by side along an X direction, side magnets 41, 42 are disposed outside the contact units along the X direction, a middle magnetic steel 43 is disposed between the two contact units, a magnetic yoke 44 is disposed inside the two contact units to surround the side magnetic steel and the middle magnetic steel, the middle magnetic steel and the two side magnetic steels form magnetic fields respectively, and the magnetic yoke 44, the side magnetic steels 41, 42 and the middle magnetic steel 43 form a reinforced parallel magnetic arc quenching structure together. Each contact unit comprises two groups of movable and stationary contacts 311 and 312, the movable and stationary contacts are connected in series, the magnetic circuits of the two relays control the four groups of movable and stationary contacts to form a multi-contact arc-dividing structure, the current direction between the movable and stationary contacts and the magnetic steel form a magnetic field direction vertical layout, and an arc generated when the movable and stationary contacts 301 and 302 are disconnected forms an elongated arc towards the base or away from the base under the action of magnetic field arc blowing. The movable contact of every group movable contact, stationary contact set up on movable spring 5, and movable spring 5 is connected with armature 6 and is formed laminating formula movable contact piece, and movable contact piece is equipped with spacing piece 7 in order to control the angle that the movable contact piece outwards opens outward, and movable contact piece is perpendicular relation with spacing piece place plane, and spacing piece 7 is fixed to be set up on the line frame in the casing. The magnetic yoke 44 adopted by the invention is U-shaped, the bottom surface of the magnetic yoke 44 spans each contact unit along the X direction and extends to the magnetic steel on two sides to form three-sided surrounding layout, and the U-shaped opening end surface of the magnetic yoke 44 is higher than the contact point position of each contact unit.
Referring to fig. 2, in the present invention, the first relay magnetic circuit 21 and the second relay magnetic circuit 22 each include an electromagnetic coil, the electromagnetic coils are mounted on the wire frame 8 in the housing 1, and the two relay magnetic circuits are electrically connected to the two coil pins 901 and 902 after being connected in parallel through the left and right soldering tabs 91 and 92, and the coil pins extend out of the housing 1 to form the relay plugging ends.
Referring to fig. 1,2 and 3, the housing 1 of the present invention includes a base 11 and a shell 12, the shell 12 is fastened on the base 11 to form an installation space, and the base 11 is provided with arc extinguishing grids 110 corresponding to the moving and static contacts to form an effective distance for arc elongation in the direction of the base. A partition plate 111 is formed upwards between the adjacent arc extinguishing grids 110, a limiting sheet 7 is arranged on the partition plate 111, and the movable spring 5 is provided with a U-shaped reed part which spans the limiting sheet and the partition plate. The arc extinguishing grid of the base 11 is of a three-face annular wall structure, more than one strip-shaped groove along the X direction is arranged at the bottom of the arc extinguishing grid, and a guide inclined surface structure is formed on the front wall and the rear wall of the strip-shaped groove along the X direction at intervals.
Referring to fig. 4, in this embodiment, the direction of the current I is shown in the drawing, the direction of the magnetic field of the magnetic steel is perpendicular to the paper surface and is outward, and according to the electromagnetic left hand rule, the arc is forced downward, i.e. towards the base, and the base is correspondingly provided with an arc extinguishing grid or arc extinguishing chamber; when the other movable contact and the other stationary contact of the same contact unit are disconnected, the electric arc is stressed upwards, namely, is far away from the base, and the arc extinguishing space above the movable contact and the stationary contact is larger.
Referring to fig. 2 and 3, in the present invention, the top of the armature 6 abuts against the yoke 201, the top end of the armature 201 forms a hook connected with a tension spring 202, and the other end of the tension spring is connected with a hook at the distal end of the yoke 201. The static contact on the outer side of the contact unit is arranged on a static spring foot, the static spring foot penetrates through the base to form a pin, the static contact on the inner side of the contact unit is arranged on a middle conducting plate, and the middle conducting plate is connected with the static contact on the inner side of the other contact unit to form a dynamic contact series structure and a static contact series structure. The surface of the contact terminal pin is perpendicular to the coil pin, the top surface of the shell 1 extends outwards to form a connecting lug, and a screw copper sleeve 121 is arranged on the connecting lug.
The invention uses two sets of relay magnetic circuits to control the connection and disconnection of two sets of movable and static contacts, the movable and static contacts are connected in series, the arc is divided by multiple contacts, and three magnetic steels (or magnets) and magnetic yoke iron (magnetic iron sheet) are added beside the contacts, the left hand rule is applied, the magnetic field and the electric field form a parallel magnetic blow-out arc extinguishing means, and the arc breaking capability of the contacts is improved.
The above description is illustrative of the embodiments using the present teachings, and is not intended to limit the scope of the present teachings to any particular modification or variation of the present teachings by those skilled in the art.
Claims (2)
1. A high-voltage direct current relay is characterized in that: the magnetic field control device comprises a shell, wherein a first relay magnetic circuit and a second relay magnetic circuit are arranged in the shell, each relay magnetic circuit controls a contact unit to be connected and disconnected, two contact units are distributed side by side along the X direction, side magnets are arranged on the outer sides of the contact units along the X direction, middle magnetic steels are arranged between the two contact units, magnetic conduction yoke irons are arranged on the inner sides of the two contact units so as to surround the side magnetic steels and the middle magnetic steels, the middle magnetic steels and the two side magnetic steels respectively form magnetic fields, and the magnetic conduction yoke irons, the side magnetic steels and the middle magnetic steels jointly form a reinforced parallel magnetic arc-extinguishing structure;
the magnetic yoke is U-shaped, the bottom surface of the magnetic yoke spans each contact unit along the X direction and extends outwards towards the magnetic steels on two sides to form three-sided surrounding layout, and the U-shaped opening end surface of the magnetic yoke is higher than the contact point of each contact unit;
The contact unit comprises two groups of movable and stationary contacts, the movable and stationary contacts are connected in series and conducted, the magnetic circuits of the two relays control the four groups of movable and stationary contacts to form a multi-contact arc dividing structure, the current direction between the movable and stationary contacts and the magnetic steel form a magnetic field direction vertical layout, and an arc generated when the movable and stationary contacts are disconnected forms an elongated arc towards the base or away from the base under the action of magnetic field arc blowing;
The movable contact of each group of movable contact and fixed contact is arranged on a movable spring, the movable spring is connected with an armature to form a fitting type movable contact piece, a limiting piece is arranged outside the movable contact piece to control the outward opening angle of the movable contact piece, the movable contact piece is in vertical relation with the plane of the limiting piece, and the limiting piece is fixedly arranged on a wire frame in the shell;
The shell comprises a base and a shell, and the shell is buckled on the base to form an installation space; the top of the armature is propped against the yoke, the top end of the armature forms a hook which is connected with a tension spring, and the other end of the tension spring is connected with a hook at the far end of the yoke; the static contact at the outer side of the contact unit is arranged on a static spring foot, the static spring foot penetrates through the base to form a pin, the static contact at the inner side of the contact unit is arranged on a middle conducting plate, and the middle conducting plate is connected with the static contact at the inner side of the other contact unit to form a dynamic contact series structure and a static contact series structure;
The base is provided with arc extinguishing grids corresponding to the movable contacts and the static contacts to form an effective distance for elongating the electric arc towards the direction of the base;
a baffle plate is formed upwards between adjacent arc extinguishing grids, a limiting sheet is arranged on the baffle plate, and a movable spring is provided with a U-shaped reed part which spans the limiting sheet and the baffle plate;
The arc-extinguishing grid of the base is of a three-face annular wall structure, more than one strip-shaped groove along the X direction is formed in the bottom of the arc-extinguishing grid, and the front wall and the rear wall of the strip-shaped groove form a guide inclined surface structure at intervals along the X direction.
2. The high voltage dc relay of claim 1, wherein: the first relay magnetic circuit and the second relay magnetic circuit both comprise an electromagnetic coil, the electromagnetic coil is arranged on a wire frame in the shell, the two relay magnetic circuits are electrically connected with two coil pins after being connected in parallel through a left soldering lug and a right soldering lug, and the coil pins extend outwards of the shell to form a relay plug-in end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351270.1A CN109243923B (en) | 2018-11-14 | 2018-11-14 | High-voltage direct-current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351270.1A CN109243923B (en) | 2018-11-14 | 2018-11-14 | High-voltage direct-current relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109243923A CN109243923A (en) | 2019-01-18 |
| CN109243923B true CN109243923B (en) | 2024-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811351270.1A Active CN109243923B (en) | 2018-11-14 | 2018-11-14 | High-voltage direct-current relay |
Country Status (1)
| Country | Link |
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| CN (1) | CN109243923B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137038A (en) * | 2019-04-30 | 2019-08-16 | 广西睿奕科技开发有限公司 | The magnetic latching relay of the effectively disconnected electric arc that goes out |
| CN110010390B (en) * | 2019-05-14 | 2024-03-12 | 厦门宏发汽车电子有限公司 | Clapping relay |
| CN110890250A (en) * | 2019-09-30 | 2020-03-17 | 厦门宏发汽车电子有限公司 | Miniaturized combined relay capable of controlling two paths of loads |
| CN114496607B (en) * | 2020-11-12 | 2023-09-05 | 比亚迪股份有限公司 | Power distribution module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6414576B1 (en) * | 1999-12-27 | 2002-07-02 | Fujitsu Takamisawa Component Ltd. | Multiple electromagnetic relay |
| CN103403832A (en) * | 2011-03-14 | 2013-11-20 | 欧姆龙株式会社 | Electromagnetic relay |
| CN204257520U (en) * | 2014-11-07 | 2015-04-08 | 浙江正泰电器股份有限公司 | Contactor |
| CN104882336A (en) * | 2015-03-31 | 2015-09-02 | 厦门宏发电力电器有限公司 | Arc extinction magnetic circuit resisting/matching electro-dynamic repulsion force and DC relay thereof |
| CN106960766A (en) * | 2017-05-09 | 2017-07-18 | 浙江英洛华新能源科技有限公司 | Arc-guide type clapper type relay |
| CN208954906U (en) * | 2018-11-14 | 2019-06-07 | 厦门普利得汽车电子有限公司 | High voltage direct current relay |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264812A (en) * | 1992-05-19 | 1993-11-23 | Takamisawa Electric Co., Ltd. | Small, economical and stable polarized electromagnetic relay having two groups of electromagnetic relay portions |
| JP3253877B2 (en) * | 1996-11-28 | 2002-02-04 | 株式会社タイコーデバイス | Electromagnetic relay |
| JP4475020B2 (en) * | 2004-06-08 | 2010-06-09 | パナソニック電工株式会社 | Circuit breaker arc extinguishing device |
| US8193881B2 (en) * | 2007-09-14 | 2012-06-05 | Fujitsu Component Limited | Relay |
| CN202018937U (en) * | 2011-04-28 | 2011-10-26 | 上海市电力公司 | Universal circuit breaker arc-extinguishing chamber capable of quickly extinguishing arc |
| CN205920940U (en) * | 2016-08-01 | 2017-02-01 | 厦门宏发电力电器有限公司 | Arc extinguishing magnetic circuit and direct current relay thereof |
| CN106252162A (en) * | 2016-08-01 | 2016-12-21 | 厦门宏发电力电器有限公司 | A kind of arc extinguishing magnetic circuit and DC relay thereof |
| CN206849784U (en) * | 2017-05-10 | 2018-01-05 | 申乐股份有限公司 | A kind of electromagnetic relay |
-
2018
- 2018-11-14 CN CN201811351270.1A patent/CN109243923B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6414576B1 (en) * | 1999-12-27 | 2002-07-02 | Fujitsu Takamisawa Component Ltd. | Multiple electromagnetic relay |
| CN103403832A (en) * | 2011-03-14 | 2013-11-20 | 欧姆龙株式会社 | Electromagnetic relay |
| CN204257520U (en) * | 2014-11-07 | 2015-04-08 | 浙江正泰电器股份有限公司 | Contactor |
| CN104882336A (en) * | 2015-03-31 | 2015-09-02 | 厦门宏发电力电器有限公司 | Arc extinction magnetic circuit resisting/matching electro-dynamic repulsion force and DC relay thereof |
| CN106960766A (en) * | 2017-05-09 | 2017-07-18 | 浙江英洛华新能源科技有限公司 | Arc-guide type clapper type relay |
| CN208954906U (en) * | 2018-11-14 | 2019-06-07 | 厦门普利得汽车电子有限公司 | High voltage direct current relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109243923A (en) | 2019-01-18 |
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