CN104952669A - High-voltage direct-current relay - Google Patents
High-voltage direct-current relay Download PDFInfo
- Publication number
- CN104952669A CN104952669A CN201510371860.0A CN201510371860A CN104952669A CN 104952669 A CN104952669 A CN 104952669A CN 201510371860 A CN201510371860 A CN 201510371860A CN 104952669 A CN104952669 A CN 104952669A
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- CN
- China
- Prior art keywords
- movable contact
- magnet steel
- contact spring
- spring
- relay
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- 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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a high-voltage direct-current relay. The relay comprises a casing, a magnetic circuit part, a contact part and a base, wherein the contact part comprises a moving reed part and a static reed part, the moving reed part adopts a bridge type structure, two moving contacts on a moving reed are correspondingly matched with static contacts on two static reeds used for current incoming and outgoing respectively, and the moving reed is linked with the magnetic circuit part to enable moving and static contacts to be separated or contacted when the magnetic circuit part works; magnetic steel is mounted in positions, corresponding to side walls at two ends of the moving reed, of the upper part of the casing respectively, the magnetic steel at the side walls at the two ends of the moving reed corresponds to contact gaps in two ends of the moving reed respectively, and the magnetic field direction of the magnetic steel at the side walls at the two ends of the moving reed is parallel to the current flow direction of the moving reed. Through specific structural design, the space occupied by the high-voltage direct-current relay on a printed circuit board is equal to that occupied by a conventional relay, and the current can flow into a load pin terminal of the relay in any direction without accidents.
Description
Technical field
The present invention relates to relay technical field, particularly relate to a kind of high voltage direct current relay.
Background technology
Growing along with EHV electric and hybrid vehicle, UPS, fuel cell, inverter and solar power system, proposes active demand to having the compact type power relay that can switch high-voltage direct-current (more than 400VDC) load.
Chinese Patent Application No. 200810128681.4 discloses a kind of relay, it is applied in and must blocks in the circuit of high voltage direct current, this relay for disconnecting high voltage direct current load circuit, permanent magnet is placed in directly over opening/closing position, sound contact by it, thus to the applying magnetic field, gap between sound contact, to make the electric arc that produces in adjacent sound contact gap due to the effect of magnetic field Lorentz force, contrary direction away from each other, respective edge is blown and extinguishes from described gap, thus when blocking-up high voltage direct current, significantly reduce electric arc to the ablation of relay contact, improve performance and the useful life of relay.
But this relay mainly also exists following drawback:
1, the top of the sound contact of relay is arranged on due to permanent magnet, increase the product height of relay, and current electronic product machine volume is day by day small and exquisite, the spatial volume requiring relay to take is also little as far as possible, and this structure of prior art is difficult to meet the demands.
2, the power positive cathode terminals at this relay leading foot place need to carry out wiring on request, when carrying out wiring on request, in sound contact in the process be disconnected, the electric arc that sound contact gap place produces can be blown along contrary direction away from each other separately and extinguish from described gap, but, if when wiring is contrary, then in sound contact in the process be disconnected, the electric arc that sound contact gap place produces will be blown from described gap along near direction each other separately, like this, electric current between different contact sets will produce overlapping in space, thus conducting forms short circuit mutually, cause electric accident, there is the risk causing electric accident because of operate miss in this relay.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, a kind of high voltage direct current relay is provided, designed by special construction, make its space shared on the circuit board of electronic product suitable with conventional relays, and electric current can flow into the load prongs terminals of relay with any direction and can not have an accident.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high voltage direct current relay, comprises shell, magnetic circuit part, contact portion and pedestal; Magnetic circuit part, contact portion are contained on pedestal respectively, and casing is on pedestal and hold described magnetic circuit part and contact portion; Described contact portion comprises dynamic spring part and quiet spring part, dynamic spring part adopts bridge architecture, fixed contact on two quiet springs that two moving contacts on movable contact spring flow into respectively with as electric current, flow out is corresponding to match, and described movable contact spring and magnetic circuit part are connected to make sound contact separate or contact when magnetic circuit part works; On the top of shell, the side-walls corresponding to movable contact spring two ends is equipped with magnet steel respectively; The magnet steel of the side-walls at described movable contact spring two ends is corresponding at the contact gap place at movable contact spring two ends respectively, and the magnetic direction of the magnet steel of the side-walls at movable contact spring two ends and the direction of current flow of movable contact spring parallel.
The described polarity corresponding to two magnet steel of the side-walls at movable contact spring two ends is set to attracting.
The magnet steel of the side-walls at described movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends.
The sidewall that two of described shell upper are relative is respectively equipped with outwardly protuberance, do not expand to make the bottom of described side wall of outer shell keep the architectural feature of existing conventional relays and take up room, described magnet steel is contained in the protuberance of the corresponding sidewall of described shell upper.
The protuberance of described shell upper is provided with upper shed, and described magnet steel is put into the protuberance of shell by the upper shed of the protuberance of shell and fixed by a glue.
Compared with prior art, the invention has the beneficial effects as follows:
1, owing to have employed the top at shell, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity respectively, the sidewall of shell upper is respectively equipped with outwardly protuberance, do not expand to make the bottom of described side wall of outer shell keep the architectural feature of existing conventional relays and take up room, described magnet steel is contained in the protuberance of described shell upper sidewall.This structure of the present invention, sufficient space can be reserved bottom relay, do not affect other devices such as electric capacity, resistance and relay spatial arrangement on circuit boards, thus the space making the relay of band magnet steel take on circuit boards almost takes up room the same with the relay not with magnet steel, improve the space availability ratio on circuit board.
2, owing to have employed the top at shell, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity respectively, described magnet steel is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction of the described side-walls magnet steel corresponding to movable contact spring two ends is parallel with the direction of current flow of movable contact spring.This structure of the present invention, solves and in magnetic field, is subject to Lorentz force by the dynamic spring of electric current and deformation and cause the problem of contact instability.
3, owing to have employed the top at shell, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity respectively, the magnet steel of the described side-walls corresponding to movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction of described magnet steel is parallel with the direction of current flow of movable contact spring.This structure of the present invention, the electric arc direction that two contact gaps are blown out in the opposite direction, that is the electric arc direction blown out is in two and can not be formed on overlapping direction, so the contact solving prior art is in the process be disconnected, the electric arc that contact gap place produces may be blown from described gap along near direction each other separately, thus the arc current between the different contact sets caused produces overlapping in space, thus conducting forms short circuit mutually, causes the problem of electric accident.
4, owing to have employed the top at shell, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity respectively, the magnet steel of the described side-walls corresponding to movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction of described magnet steel is parallel with the direction of current flow of movable contact spring.This structure of the present invention, tube current from which direction does not flow into relay pin, and all can not affect arc blow-out effect, therefore, the requirement of the wiring non-transformer both positive and negative polarity of invention relay leading foot, can connect arbitrarily, and can be used in AC load.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of high voltage direct current relay of the present invention is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is organigram of the present invention;
Fig. 2 is end view of the present invention;
Fig. 3 is structure of the present invention (after removing shell) schematic diagram;
Fig. 4 is the schematic diagram that contact portion of the present invention matches with magnet steel;
Fig. 5 is that contact portion of the present invention matches with magnet steel the schematic diagram of (movable contact spring current direction is contrary).
Embodiment
Embodiment
See shown in Fig. 1 to Fig. 5, a kind of high voltage direct current relay of the present invention, comprises shell 1, magnetic circuit part 2, contact portion and pedestal 5; Magnetic circuit part 2, contact portion are contained on pedestal respectively, and shell 1 to be enclosed within pedestal 5 and to hold described magnetic circuit part 2 and contact portion; Described contact portion comprises dynamic spring part 3 and quiet spring part 4, and dynamic spring part 3 and quiet spring part 4 can be one or more groups, and the present embodiment is two groups; Dynamic spring part 3 adopts bridge architecture to comprise movable contact spring 31 and is connected to the moving contact 32 at movable contact spring 31 two ends, quiet spring part 4 comprises two the quiet spring 41 and the fixed contacts 42 be connected corresponding on two quiet springs 41 that flow into as electric current, flow out, fixed contact 42 on two quiet springs that two moving contacts 32 on movable contact spring flow into respectively with as electric current, flow out is corresponding to match, and described movable contact spring 31 and magnetic circuit part 2 are connected to make sound contact separate or contact when magnetic circuit part works; On the top of shell 1, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity 6 respectively, the magnet steel 6 of the side-walls at described movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction of the magnet steel 6 of the side-walls at movable contact spring two ends is parallel with the direction of current flow of movable contact spring 31.
The sidewall on described shell 1 top is respectively equipped with outwardly protuberance 11, and do not expand to make the bottom of described side wall of outer shell keep the architectural feature of existing conventional relays and take up room, described magnet steel 6 is contained in the protuberance of described shell upper sidewall.As seen from Figure 2, the lower space 12 of this relay is identical with the structure of existing conventional relays, therefore, can not affect electronic devices and components installation on circuit boards.
The protuberance 11 of described shell upper is provided with upper shed, and described magnet steel 6 is put into the protuberance 11 of shell by the upper shed of the protuberance of shell and fixed by a glue.
A kind of high voltage direct current relay of the present invention, owing to have employed on the top of shell 1, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity 6 respectively, the sidewall of shell upper is respectively equipped with outwardly protuberance 11, do not expand to make the bottom of described side wall of outer shell keep the architectural feature of existing conventional relays and take up room, described magnet steel 6 is contained in the protuberance 11 of described shell upper sidewall.This structure of the present invention, sufficient space 12 can be reserved bottom relay, do not affect other devices such as electric capacity, resistance and relay spatial arrangement on circuit boards, thus the space making the relay of band magnet steel take on circuit boards almost takes up room the same with the relay not with magnet steel, improve the space availability ratio on circuit board.
A kind of high voltage direct current relay of the present invention, owing to have employed on the top of shell 1, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity 6 respectively, the magnet steel 6 of the described side-walls corresponding to movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction T of described magnet steel is parallel with the direction of current flow I of movable contact spring.This structure of the present invention, solves and in magnetic field, is subject to Lorentz force by the dynamic spring of electric current and deformation and cause the problem of contact instability.
A kind of high voltage direct current relay of the present invention, owing to have employed on the top of shell 1, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity 6 respectively, the magnet steel 6 of the described side-walls corresponding to movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the T direction, magnetic field of described magnet steel 6 is parallel with the electric current I flow direction of movable contact spring.This structure of the present invention, the electric arc direction that two contact gaps are blown out is in two and can not be formed on overlapping direction, as shown in Figure 4, in two quiet springs 41, the electric current I of one of them quiet spring 41 is for flowing into, the electric current I of another quiet spring 41 is for flowing out, for this reason, flow to moving contact 32 by fixed contact 42 at the flow direction of the arc current I 1 of movable contact spring 31 one end, and be flow to fixed contact 42 by moving contact 32 at the flow direction of the arc current I 1 of movable contact spring 31 other end, the magnetic field that magnet steel produces produces magnetic blow-out power F11 in movable contact spring 31 one end, magnetic blow-out power F12 is produced at movable contact spring 31 other end, as seen from the figure, magnetic blow-out power F11 and magnetic blow-out power F12 can not be formed overlapping, therefore, the contact that this solves prior art of the present invention is in the process be disconnected, the electric arc that contact gap place produces will be blown from described gap along near direction each other separately, thus the arc current between the different contact sets caused produces overlapping in space, thus conducting forms short circuit mutually, cause the problem of electric accident.
A kind of high voltage direct current relay of the present invention, owing to have employed on the top of shell 1, side-walls corresponding to movable contact spring two ends is equipped with the attracting magnet steel of polarity 6 respectively, the magnet steel 6 of the described side-walls corresponding to movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends, and the magnetic direction of described magnet steel is parallel with the direction of current flow of movable contact spring.Again as shown in Figure 5, when the electric current I flow direction of movable contact spring 31 is contrary, the T direction, magnetic field of magnet steel remains unchanged, and the T direction, magnetic field of magnet steel 6 is still parallel with the electric current I flow direction of movable contact spring.In two quiet springs 41, the electric current I of one of them quiet spring 41 described is for flowing out, the electric current I of another quiet spring 41 described is for flowing into, for this reason, flow to fixed contact 42 by moving contact 32 at the flow direction of the arc current I 1 of movable contact spring 31 one end, and be flow to moving contact 32 by fixed contact 42 at the flow direction of the arc current I 1 of movable contact spring 31 other end, the magnetic field that magnet steel produces produces magnetic blow-out power F21 in movable contact spring 31 one end, magnetic blow-out power F22 is produced at movable contact spring 31 other end, as seen from the figure, magnetic blow-out power F21 and magnetic blow-out power F22 can not be formed overlapping, composition graphs 4, Fig. 5, this structure of the present invention, tube current does not flow into relay pin from which direction, arc current between different contact sets all can not produce overlapping in space, can guarantee that the arc current between different contact sets can not conducting form short circuit and cause electric accident mutually, therefore, the requirement of the wiring non-transformer both positive and negative polarity of invention relay leading foot, can connect arbitrarily, and can be used in AC load.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as equivalents Equivalent embodiments.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (5)
1. a high voltage direct current relay, comprises shell, magnetic circuit part, contact portion and pedestal; Magnetic circuit part, contact portion are contained on pedestal respectively, and casing is on pedestal and hold described magnetic circuit part and contact portion; Described contact portion comprises dynamic spring part and quiet spring part, dynamic spring part adopts bridge architecture, fixed contact on two quiet springs that two moving contacts on movable contact spring flow into respectively with as electric current, flow out is corresponding to match, and described movable contact spring and magnetic circuit part are connected to make sound contact separate or contact when magnetic circuit part works; It is characterized in that: on the top of shell, the side-walls corresponding to movable contact spring two ends is equipped with magnet steel respectively; The magnet steel of the side-walls at described movable contact spring two ends is corresponding at the contact gap place at movable contact spring two ends respectively, and the magnetic direction of the magnet steel of the side-walls at movable contact spring two ends and the direction of current flow of movable contact spring parallel.
2. high voltage direct current relay according to claim 1, is characterized in that: the described polarity corresponding to two magnet steel of the side-walls at movable contact spring two ends is set to attracting.
3. high voltage direct current relay according to claim 1, is characterized in that: the magnet steel of the side-walls at described movable contact spring two ends is respectively just to the contact gap place at movable contact spring two ends.
4. the high voltage direct current relay according to claim 1 or 2 or 3, it is characterized in that: the sidewall that two of described shell upper are relative is respectively equipped with outwardly protuberance, do not expand to make the bottom of described side wall of outer shell keep the architectural feature of existing conventional relays and take up room, described magnet steel is contained in the protuberance of the corresponding sidewall of described shell upper.
5. high voltage direct current relay according to claim 4, is characterized in that: the protuberance of described shell upper is provided with upper shed, and described magnet steel is put into the protuberance of shell by the upper shed of the protuberance of shell and fixed by a glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371860.0A CN104952669A (en) | 2015-06-30 | 2015-06-30 | High-voltage direct-current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371860.0A CN104952669A (en) | 2015-06-30 | 2015-06-30 | High-voltage direct-current relay |
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| Publication Number | Publication Date |
|---|---|
| CN104952669A true CN104952669A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510371860.0A Pending CN104952669A (en) | 2015-06-30 | 2015-06-30 | High-voltage direct-current relay |
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| CN (1) | CN104952669A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172471A (en) * | 2018-01-22 | 2018-06-15 | 厦门宏发汽车电子有限公司 | A kind of high load AUTOMOTIVE RELAY with magnet steel arc extinguishing |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
| CN109920704A (en) * | 2019-03-28 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | Anti- Lorentz force relay |
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN114373656A (en) * | 2021-12-29 | 2022-04-19 | 宁波金海电子有限公司 | Electromagnetic relay with double-magnetic-steel auxiliary arc extinguishing function and assembling method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007305468A (en) * | 2006-05-12 | 2007-11-22 | Omron Corp | Electromagnetic relay |
| CN201985041U (en) * | 2011-03-10 | 2011-09-21 | 二一三电器深圳有限公司 | Nonpolar direct-current contactor arc extinguishing system |
| CN104538255A (en) * | 2014-12-17 | 2015-04-22 | 贵州天义汽车电器有限公司 | High-voltage direct-current relay |
-
2015
- 2015-06-30 CN CN201510371860.0A patent/CN104952669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007305468A (en) * | 2006-05-12 | 2007-11-22 | Omron Corp | Electromagnetic relay |
| CN201985041U (en) * | 2011-03-10 | 2011-09-21 | 二一三电器深圳有限公司 | Nonpolar direct-current contactor arc extinguishing system |
| CN104538255A (en) * | 2014-12-17 | 2015-04-22 | 贵州天义汽车电器有限公司 | High-voltage direct-current relay |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172471A (en) * | 2018-01-22 | 2018-06-15 | 厦门宏发汽车电子有限公司 | A kind of high load AUTOMOTIVE RELAY with magnet steel arc extinguishing |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
| CN108682597B (en) * | 2018-05-31 | 2023-11-24 | 厦门宏发汽车电子有限公司 | Static spring plug-in mounting structure capable of resisting filth pollution of miniaturized relay |
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN109920704A (en) * | 2019-03-28 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | Anti- Lorentz force relay |
| CN114373656A (en) * | 2021-12-29 | 2022-04-19 | 宁波金海电子有限公司 | Electromagnetic relay with double-magnetic-steel auxiliary arc extinguishing function and assembling method thereof |
| CN114373656B (en) * | 2021-12-29 | 2024-05-24 | 宁波金海电子有限公司 | Electromagnetic relay with double magnetic steel auxiliary arc extinction and assembly method thereof |
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Application publication date: 20150930 |