CN104867783A - Miniature mute low-power electromagnetic relay - Google Patents
Miniature mute low-power electromagnetic relay Download PDFInfo
- Publication number
- CN104867783A CN104867783A CN201410059947.XA CN201410059947A CN104867783A CN 104867783 A CN104867783 A CN 104867783A CN 201410059947 A CN201410059947 A CN 201410059947A CN 104867783 A CN104867783 A CN 104867783A
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- China
- Prior art keywords
- sliding part
- magnet
- combination
- coil
- electromagnetic relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention provides a miniature mute low-power electromagnetic relay. The miniature mute low-power electromagnetic relay comprises a coil yoke combination, a magnet sliding part combination, a pin contact combination, a motion bumper pad, a reset bumper pad, a high-voltage partition plate, a high-voltage separation sleeve and a housing. The magnet sliding part combination comprises rubidium iron boron magnetic steel. Two U-shaped iron sheets in the coil yoke combination generate two electromagnetic fields opposite in direction after powered on, and the two electromagnetic fields are respectively in interaction with two magnetic poles of the magnetic steel. Electromagnetic forces drive the magnet sliding part combination to slide downwards. The motion bumper pad drives an elastic sheet to bend so as to further lead to closing of two contacts. The reset bumper pad is arranged between the top part of the magnet sliding part combination and one end part of the upper U-shaped iron sheet. The two bumper pads are respectively used for absorbing impact noises generated by motions of moving parts at the moments when a coil is powered on and powered off. The power consumption of the relay coil is 0.2 W, the rated operational current is 8 A, and the motion noises detected at a distance of 90 cm are no more than 40 dB.
Description
Technical field
The present invention relates to a kind of relay, specifically refer to a kind of small silent low power consumption electromagnetic relay.
Technical background
Electromagnetic relay is a kind of electromechanical compo, be widely used in electrical equipment, instrument, instrument and industrial equipment, along with the development of electronic product, relay is also towards miniaturization, low-power consumption, big current, the direction of low noise is improved, existing miniature electro-magnetic relay generally can not meet the requirement that coil power dissipation is low and operating current is large simultaneously, also there is larger noise in adhesive simultaneously and release movement.
Summary of the invention
The technical problem that the present invention solves provides a kind of relay to be to realize two objects for above-mentioned prior art present situation: one, adopt strong magnet and electromagnetic field acting in conjunction to produce larger electromagnetic force to increase contact pressure, reducing contact resistance, is that under the condition of 0.2 watt, operating current can reach 8 amperes at coil power dissipation; Two, in contact adhesive and relieving mechanism, add flexo cushion respectively, reduce the impulsive sound of powered on moment contact and power down moment, movable agency resetted time strike note, record action noise in the distance of 90 centimetres of being separated by and be not more than 40dB.
Technical solution of the present invention is: a kind of small silent low power consumption electromagnetic relay, and comprise the combination of coil yoke, magnet sliding part combines, and pin contacts combines, action cushion pad, reset cushion pad, high_voltage isolation plate, high_voltage isolation cover, shell.The combination of described coil yoke is made up of coil and skeleton and dual U-shaped iron plate, described magnet sliding part combination is made up of sliding support, magnet and upper and lower two iron plates, this is combined in skeleton encirclement structure and slides up and down, and promotes shell fragment and bends or reset, make the closing of contact or separate by action cushion pad.Described pin contacts combination is by base, fixed contact, moving contact, shell fragment, shell fragment pin, and contact pin and coil pin composition, fixed contact is riveted on above contact pin, and moving contact is riveted on above shell fragment, and shell fragment turns over riveting on shell fragment pin.
There is encirclement structure described skeleton front end, this encirclement inside configuration hollow, be combined in the inside for coordinating magnet sliding part to slide up and down, bottom seals and leaves a hole, push rod for the sliding support in the combination of magnet sliding part passes, complete opening above, load for the combination of magnet sliding part, upper U-iron on chip enter after skeleton one end thereof block this opening, the central through hole of described skeleton is at described encirclement inside configuration lateral opening, and two U-iron sheets have an end to insert described encirclement inside configuration through this opening respectively.Magnet is cuboid, two magnetic pole contacts with lower iron plate with upper iron plate respectively, magnet is placed between upper and lower two iron plates, upper iron plate is parallel with lower iron plate, after the combination of magnet sliding part loads this encirclement structure, described upper iron plate is placed between the opening of described upper U-iron sheet two ends, and described lower iron plate is placed between the opening of described lower U-iron sheet two ends.
The front portion of described upper one of them end of U-iron sheet has groove, and the pillar of the sliding support crown center in coordinating described magnet sliding part to combine passes.
Described reset cushion pad is a thin slice, there is a through hole centre, this through hole matches with the pillar of described sliding support crown center, described reset cushion pad is placed between the combination of magnet sliding part and an end of upper U-iron sheet, make of the resilient material of softness, resetting for magnet sliding part combination during absorbing coil power-off produces impact noise instantaneously.
Described action buffering is lined with small cylindrical projection and matches with a small sircle hole on shell fragment top, between the push rod that described action cushion pad is placed in the sliding support of described magnet sliding part combination and described shell fragment, when being energized for absorbing coil two contact moment impact noise and increase creepage distance, flow through the push rod of heat conduction to sliding support of contact and shell fragment generation for isolating big current simultaneously, described action cushion pad high-temperature insulation material makes, soft flexible.
Compared with prior art, owing to present invention utilizes the interaction of strong magnet and electromagnetic field, larger electromagnetic push can be produced in less coil power dissipation situation, increase the contact between contact, reduce contact resistance, effectively increase operating current; Reduce the action noise of relay power and shutdown transient generation respectively owing to adding two elastic buffering pads simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: the combination of 1-coil yoke, the combination of 2-magnet sliding part, the combination of 3-pin contacts, 4-action cushion pad, 5-reset cushion pad, 6-high_voltage isolation plate, 7-high_voltage isolation cover, 8-shell.
Fig. 2 is coil yoke combining structure schematic diagram of the present invention;
In figure: U-iron sheet under the upper U-iron sheet of 11-skeleton, 12-coil, 13-, 14-.
Fig. 3 is magnet sliding part combining structure schematic diagram in the present invention;
In figure: iron plate under 21-sliding support, 22-magnet, the upper iron plate of 23-, 24-.
Fig. 4 is pin contacts combining structure schematic diagram in the present invention;
In figure: 31-base, 32-fixed contact, 33-moving contact, 34-shell fragment, 35-contact pin, 36-shell fragment pin, 37-coil pin.
Fig. 5 is action cushion structure schematic diagram in the present invention.
Fig. 6 is the cushion structure schematic diagram that resets in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, small silent low power consumption electromagnetic relay of the present invention comprises: coil yoke combination (1), magnet sliding part combination (2), pin contacts combination (3), action cushion pad (4), reset cushion pad (5), high_voltage isolation plate (6), high_voltage isolation cover (7), shell (8).
As shown in Figure 2, coil yoke combination (1) of this relay is made up of skeleton (11), coil (12), upper U-iron sheet (13) and lower U-iron sheet (14).Upper U-iron sheet (13) and lower U-iron sheet (14) instead of iron core in traditional relay and yoke structure, decrease riveted joint link that is unshakable in one's determination and yoke, simplify technique, the uneven high Magnetoresistance Phenomena brought in the riveted joint face that simultaneously eliminates.Encirclement structure is had in skeleton (11) front end, this encirclement inside configuration hollow, object coordinates magnet sliding part combination (2) to slide up and down in this encirclement inside configuration, this encirclement structural base seals and leaves a hole, push rod for the sliding support (21) in magnet sliding part combination (2) passes, complete opening above, load for magnet sliding part combination (2), upper U-iron sheet (13) has an end to block this opening after loading skeleton (11), the central through hole of skeleton (11) is at this encirclement inside configuration lateral opening, described upper and lower two U-iron sheets respectively have an end to insert this encirclement inside configuration through frame center's through hole and this opening, define in the middle of coil (12) and have an iron core, respectively there is the structure of a yoke up and down, object forms the contrary electromagnetic field of two pole orientation at two open-ended places of upper U-iron sheet (13) and lower U-iron sheet (14) after being coil (12) energising respectively.
As shown in Figure 3, magnet sliding part combination (2) of this relay is made up of sliding support (21), magnet (22), upper iron plate (23), lower iron plate (24).Magnet (22) is cuboid, two magnetic poles of magnet (22) contact with lower iron plate (24) with upper iron plate (23) respectively, magnet (22) is placed between upper and lower two iron plates, upper iron plate (23) is parallel with lower iron plate (24), and object is to make iron plate and lower iron plate on this become the contrary magnetic pole of two magnetic.Magnet sliding part combination (2) loads in the encirclement structure of skeleton (11) front end, upper iron plate (23) be placed in U-iron sheet (13) two open-ended between, lower iron plate (24) be placed in lower U-iron sheet (14) two open-ended between, after coil (12) energising, the electromagnetic force that the elect magnetic field that the both direction that the upper iron plate (23) that two magnetic poles are contrary and lower iron plate (24) are formed upper U-iron sheet (13) and lower U-iron sheet (14) is respectively contrary is subject to same direction promotes, the direction of this electromagnetic force is upwards or downwards by coil (12), the sense of current and the pole orientation of magnet (22) decide, adjusting these two parameters, that magnet sliding part can be made to combine (2) electromagnetic force direction of being subject to is downward, promote magnet sliding part combination (2) to move downward.
As shown in Figure 4, pin contacts combination (3) of this relay is made up of base (31), fixed contact (32), moving contact (33), shell fragment (34), contact pin (35), shell fragment pin (36), coil pin (37), fixed contact (32) is riveted on above contact pin (35), moving contact (33) is riveted on above shell fragment (34), and shell fragment (34) turns over riveting on shell fragment pin (36).Shell fragment (34) in a free state, a safe distance is remained with between moving contact (33) and fixed contact (32), after coil (12) energising, magnet sliding part combination (2) powered magnetic force moving moves downward, promote shell fragment (34) by action cushion pad (4) to be bent downwardly, moving contact (33) is moved down contact with fixed contact (32), and keep an enough pressure to act between these two contacts.
As shown in Figure 1 and Figure 5, the action cushion pad (4) of this relay is placed between magnet sliding part combination (2) and shell fragment (34), use high-temperature insulation material makes, soft flexible, for absorbing coil (12) energising late contact (33) and fixed contact (32) Contact impact noise and increase creepage distance, simultaneously for isolate big current flow through contact and shell fragment generation heat conduction to sliding support (21).
As shown in Figure 2 and Figure 6, the reset cushion pad (5) of this relay is placed between magnet sliding part combination (2) and upper U-iron sheet (13) ends, uses soft resilient material to make.After coil (12) power-off, electromagnetic force disappears, shell fragment (34) returns to free state by stressed bending, promote magnet sliding part combination (2) to move upward, U-iron sheet (13) on reset cushion pad (5) shock, this cushion pad clashes into upper U-iron sheet (13) noise produced for absorbing magnet sliding part combination (2).
Claims (8)
1. small silent low power consumption electromagnetic relay, it is characterized in that: described small silent low power consumption electromagnetic relay comprises coil yoke combination (1), magnet sliding part combination (2), pin contacts combination (3), action cushion pad (4), reset cushion pad (5), high_voltage isolation plate (6), high_voltage isolation cover (7) and shell (8) composition; Coil yoke combination (1) is made up of skeleton (11), coil (12), upper U-iron sheet (13) and lower U-iron sheet (14); Magnet sliding part combination (2) is made up of sliding support (21), magnet (22), upper iron plate (23) and lower iron plate (24); Pin contacts combination (3) is made up of base (31), fixed contact (32), moving contact (33), shell fragment (34), contact pin (35), shell fragment pin (36) and coil pin (37).
2. small silent low power consumption electromagnetic relay according to claim 1, it is characterized in that: skeleton (11) outside is wound with coil (12), there is a central through hole centre, yoke is upper and lower two U-iron sheets, there are a sweep and two ends respectively, upper U-iron sheet (13) ends are passed from skeleton (11) central through hole, another end is positioned at above coil (12), lower U-iron sheet (14) ends are passed from skeleton (11) central through hole, and the other end is positioned at below coil (12).
3. according to the small silent low power consumption electromagnetic relay described in claim 1 to 2, it is characterized in that: there is encirclement structure skeleton (11) front end, this encirclement inside configuration hollow, combine (2) loading the inside for coordinating magnet sliding part to slide up and down, described encirclement structural base seals and leaves a hole, push rod for the sliding support (21) in magnet sliding part combination (2) passes, the complete opening of described encirclement structure, load for magnet sliding part combination (2), upper U-iron sheet (13) loading skeleton (11) afterwards one end thereof blocks this opening, the central through hole of skeleton (11) is at described encirclement inside configuration lateral opening, described upper U-iron sheet (13) and lower U-iron sheet (14) insert described encirclement inside configuration through the end of skeleton (11) central through hole through this opening.
4. the small silent low power consumption electromagnetic relay according to claims 1 to 3, it is characterized in that: the front end of upper U-iron sheet (13) one of them end has groove, coordinate the pillar of sliding support (21) crown center in magnet sliding part combination (2) to pass.
5. the small silent low power consumption electromagnetic relay according to Claims 1-4, it is characterized in that: reset cushion pad (5) is a thin slice, there is a through hole centre, the pillar of sliding support (21) crown center that this through hole combines with magnet sliding part in (2) matches, described reset cushion pad (5) is placed between magnet sliding part combination (2) and an end of upper U-iron sheet (13), is made by the resilient material of softness.
6. the small silent low power consumption electromagnetic relay according to claims 1 to 3, it is characterized in that: between the push rod of the sliding support (21) in magnet sliding part combination (2) and shell fragment (34), have action cushion pad (4) to isolate, described action cushion pad (4) has a small cylindrical projection to match with a small sircle hole on shell fragment (34) top, described action cushion pad (4) is made by high-temperature insulation material, soft flexible.
7. the small silent low power consumption electromagnetic relay according to claims 1 to 3 and 6, it is characterized in that: the forced position that the push rod of the sliding support (21) in magnet sliding part combination (2) acts on shell fragment (34) by action cushion pad (4) is positioned at the extended line direction of shell fragment stiff end to moving contact (33), namely moving contact (33) to shell fragment (34) free end between.
8. the small silent low power consumption electromagnetic relay according to claims 1 to 3, it is characterized in that: in magnet sliding part combination (2), magnet (22) is cuboid, two magnetic poles of this magnet (22) contact with lower iron plate (24) with upper iron plate (23) respectively, magnet (22) is placed between upper and lower two iron plates, upper iron plate (23) is parallel with lower iron plate (24), described magnet sliding part combination (2) loads in the encirclement structure of skeleton (11) front end, upper iron plate (23) be placed in two of U-iron sheet (13) open-ended between, lower iron plate (24) be placed in two of lower U-iron sheet (14) open-ended between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059947.XA CN104867783A (en) | 2014-02-21 | 2014-02-21 | Miniature mute low-power electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059947.XA CN104867783A (en) | 2014-02-21 | 2014-02-21 | Miniature mute low-power electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104867783A true CN104867783A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059947.XA Pending CN104867783A (en) | 2014-02-21 | 2014-02-21 | Miniature mute low-power electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104867783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963992A (en) * | 2020-07-21 | 2022-01-21 | 海信（山东）冰箱有限公司 | Mute electromagnetic relay and refrigeration equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335156A (en) * | 2007-06-29 | 2008-12-31 | 厦门宏发电声有限公司 | Magnet retaining relay |
| CN102549700A (en) * | 2009-10-01 | 2012-07-04 | 罗伯特·博世有限公司 | Toe-in actuator having attenuation |
| CN203312183U (en) * | 2013-05-31 | 2013-11-27 | 厦门宏发电声股份有限公司 | Small-size magnetic latching power relay |
-
2014
- 2014-02-21 CN CN201410059947.XA patent/CN104867783A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335156A (en) * | 2007-06-29 | 2008-12-31 | 厦门宏发电声有限公司 | Magnet retaining relay |
| CN102549700A (en) * | 2009-10-01 | 2012-07-04 | 罗伯特·博世有限公司 | Toe-in actuator having attenuation |
| CN203312183U (en) * | 2013-05-31 | 2013-11-27 | 厦门宏发电声股份有限公司 | Small-size magnetic latching power relay |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963992A (en) * | 2020-07-21 | 2022-01-21 | 海信（山东）冰箱有限公司 | Mute electromagnetic relay and refrigeration equipment |
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Application publication date: 20150826 |