CN107305825A - A kind of electromagnetic relay of strap type push card - Google Patents
A kind of electromagnetic relay of strap type push card Download PDFInfo
- Publication number
- CN107305825A CN107305825A CN201710561855.5A CN201710561855A CN107305825A CN 107305825 A CN107305825 A CN 107305825A CN 201710561855 A CN201710561855 A CN 201710561855A CN 107305825 A CN107305825 A CN 107305825A
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- CN
- China
- Prior art keywords
- push card
- rotating shaft
- axis hole
- contact
- convex portion
- Prior art date
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a kind of electromagnetic relay of strap type push card, including pedestal, magnetic circuit part, contact portion and push card；Push card is piece type structure and is located between magnetic circuit part and contact portion；One end of the length of push card is provided with a rotating shaft on the wherein one side for pointing to its width, and the peripheral size of the outer end of rotating shaft is less than the peripheral size of inner end to form outer small inner big structure；In pedestal, be provided with an axis hole approximately along horizontal direction in the installation place corresponding to push card, and the axis hole be set to it is outer it is big in small structure；When rotating shaft is engaged with axis hole, rotating shaft only outer end and inner end are in contact with the hole wall of axis hole respectively, and the center section of rotating shaft is not in contact with the hole wall of axis hole, so as to realize the two ends positioning of rotating shaft.The present invention can both improve the stability of push card motion process, the generation of soft flocks in push card assembling process can be avoided again, so that the performance of relay has been effectively ensured.
Description
Technical field
The present invention relates to relay technical field, more particularly to a kind of electromagnetic relay of strap type push card.
Background technology
Relay is a kind of frequently to close, carry and cut-off cut-offfing and closing for normal current and defined overload current
Device.A kind of existing electromagnetic relay is to flow through current induced magnetic field using coil, makes contact closure, to reach control load
Electrical equipment.It is widely used in the fields such as electric power, distribution and electricity consumption.The basic functional principle of electromagnetic relay is to convert electrical energy into
Magnetic energy is then converted into mechanical energy, can turn on and the controlled circuit of disjunction, the effect of realization " relay " using machinery.
Existing electromagnetic relay generally includes pedestal, magnetic circuit part, contact portion and pushing mechanism, and pushing mechanism is usual
It is connected between magnetic circuit part and contact portion, pushing mechanism is used as the bridge of connection input and output in electromagnetic relay, master
It is the movable contact spring that the armature movement stroke of magnetic circuit part is passed to contact portion to want function, realizes the conversion of contacts status.Push away
Motivation structure also has concurrently and is dielectrically separated from function simultaneously, is generally made by insulating materials.
A kind of pushing mechanism of electromagnetic relay of prior art is the push card using piece type structure, one end of push card
(equivalent to one side of the length of push card) sets rotating shaft, and the one side of push card sets the company being engaged with the armature of magnetic circuit part
Socket part, can be acted with the action of armature, the another side of push card is set and connecing that the movable contact spring of contact portion is engaged
Contact portion, when magnetic circuit is operated so that armature movement, armature drive push card surround push card axis of rotation, push card it is another
Simultaneously then movable contact spring is promoted sound contact is in contact, when armature resets, armature also drives push card homing, either
Push card homing is driven by the recuperability of movable contact spring.A kind of design of this pushing mechanism of prior art is to push away
The both sides (equivalent to the both sides of the width of push card) of one end of dynamic card respectively set a rotating shaft, are then set in the correspondence position of pedestal
Corresponding mounting groove is put, the push card of this structure is easy to produce hair due to there is interference fit section in assembling process
Bits, and then influence the performance of relay.Another design (such as Chinese patent of this pushing mechanism of prior art
Disclosed by CN201518298U) be by two rotating shafts of one end of push card together towards push card width one side, in base
Corresponding mating holes is then set on seat, although push card is not interference fitted process with pedestal, but because of mould structure problem, it is middle
It is inevitable with the porch acute angle of axle mating holes, part flash itself is inevitable, and during assembling push card, hole with
The collision of axle is inevitable, so also easily produces flash, and then also influences the performance of relay.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art there is provided a kind of electromagnetic relay of strap type push card,
Improved by structure, on the one hand, the stability of push card motion process can be improved, on the other hand, can avoid promoting clamp
The generation of soft flocks during matching somebody with somebody, so that the performance of relay has been effectively ensured.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electromagnetic relay of strap type push card,
Including pedestal, magnetic circuit part, contact portion and push card；The magnetic circuit part and contact portion are attached separately on pedestal, described
Push card is piece type structure and is located between magnetic circuit part and contact portion；One end of the length of the push card, which is provided with, points to it
One rotating shaft on wherein one side of width, and the outer end of rotating shaft peripheral size be less than inner end peripheral size with formed it is outer it is small in
Big structure；In the pedestal, an axis hole approximately along horizontal direction is provided with the installation place corresponding to push card, and should
Axis hole be set to it is outer it is big in small structure；When the rotating shaft is engaged with axis hole, rotating shaft only have outer end and inner end respectively with axis hole
Hole wall be in contact, the center section of rotating shaft is not in contact with the hole wall of axis hole, thus realize rotating shaft two ends positioning.
The rotating shaft is circle, and described axis hole is square.
Further, in addition to a stop part, the stop part is located at for preventing the rotating shaft of the push card from adapting to
The corresponding position that the axis hole position of the pedestal is exited.
The one side of the push card is provided with the first convex portion, and the first convex portion of the push card connects with the armature of magnetic circuit part
Touch, the another side of the push card is provided with the second convex portion, and the second convex portion of the push card connects with the movable contact spring of contact portion
Touch, when armature movement, armature drives the second convex portion of push card to promote the movable contact spring of contact portion, make dynamic tactile on movable contact spring
Point is in contact with the stationary contact on quiet spring.
The stop part is connected on movable contact spring, and the stop part is located at the side of the second convex portion of the push card, and is
The push card rotating shaft from the direction that the axis hole position for adapting to the pedestal is exited.
Second convex portion of the push card is two, is respectively provided at the both sides of the width of push card, the stop part is located at
Corresponding to the side of the second convex portion of the another side position of the width of push card.
The stop part is integrally located on the movable contact spring, is connecting with the second convex portion of the push card by movable contact spring
Tactile part is bent to form after stretching out.
The stop part is connected on armature, and the stop part is located at the side of the first convex portion of the push card, and be
The rotating shaft of the push card is from the direction that the axis hole position for adapting to the pedestal is exited.
Further, in addition to shell, the shell is connected with the pedestal with by the magnetic circuit part, contact portion
In being included in push card, the stop part is connected at the corresponding madial wall of shell.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention as a result of one end of the length in push card provided with pointing to one of wherein one side of its width
Rotating shaft, and the peripheral size of the outer end of rotating shaft is less than the peripheral size of inner end to form outer small inner big structure；In the pedestal,
Be provided with an axis hole approximately along horizontal direction in the installation place corresponding to push card, and the axis hole be set to it is outer it is big in small knot
Structure；When the rotating shaft is engaged with axis hole, rotating shaft only has one section of outer end and one section of hole wall phase respectively with axis hole of inner end
Contact, so as to realize the two ends positioning of rotating shaft.This structure of the present invention, when the axis hole of pedestal is inserted in the rotating shaft of push card,
It is that small axle coordinates macropore, the generation of soft flocks in push card assembling process can be avoided, and in assembling, rotating shaft only has outer end and inner
End is in contact with the hole wall of axis hole respectively, and the center section of rotating shaft is not in contact with the hole wall of axis hole, i.e., axle coordinates with hole two ends
Centre is stepped down, and is realized the function that two-point locating is completed with an axle, can be improved the stability of push card motion process, so that
The performance of relay has been effectively ensured.
2nd, the present invention is as a result of setting a stop part, and the stop part is located at the rotating shaft for preventing the push card
The corresponding position exited from the axis hole position for adapting to the pedestal.This structure of the present invention, by preventing push card
Rotating shaft is exited from the axis hole of pedestal, so as to ensure push card and magnetic circuit part, the fit precision of contact portion.
3rd, the present invention is set to circular as a result of by rotating shaft, and axis hole is set into square, matched somebody with somebody by circular shaft in motion process
Square hole, can reduce the friction in motion to greatest extent.
4th, the present invention is integrally located on the movable contact spring as a result of by stop part, and is to be pushed away by movable contact spring with described
The part that second convex portion of dynamic card is in contact is bent to form after stretching out.This structure of the present invention, using movable contact spring flange
To realize anti-back, with simple in construction, the characteristics of using effect is good.
The present invention is described in further detail below in conjunction with drawings and Examples；But a kind of strap type of the present invention is promoted
The electromagnetic relay of card is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment present invention；
Fig. 2 is stereochemical structure (upset one side) schematic diagram of the embodiment present invention；
Fig. 3 is the front view of the embodiment present invention；
Fig. 4 is the sectional view of the line A-A along along Fig. 3；
Fig. 5 is the dimensional structure diagram of the push card of the embodiment present invention；
Fig. 6 is the front view of the push card of the embodiment present invention；
Fig. 7 is the upward view of the push card of the embodiment present invention；
Fig. 8 is the top view of the push card of the embodiment present invention；
Fig. 9 is the side view of the push card of the embodiment present invention；
Figure 10 is the sectional view of the line B-B along along Fig. 6；
Figure 11 is the dimensional structure diagram of the pedestal of the embodiment present invention；
Figure 12 is the sectional view at the axis hole position of the pedestal of the embodiment present invention.
Embodiment
Embodiment
Referring to shown in Fig. 1 to Figure 12, a kind of electromagnetic relay of strap type push card of the invention, including pedestal 1, magnetic circuit
Part 2, contact portion 3 and push card 4；The magnetic circuit part 2 and contact portion 3 are attached separately on pedestal 1, the push card 4
For piece type structure and it is located between magnetic circuit part 2 and contact portion 3；One end of the length of the push card 4 is wide provided with it is pointed to
One rotating shaft 41 on wherein one side of degree, and the peripheral size of the outer end 411 of rotating shaft is less than the peripheral size of inner end 412 to be formed
Outer small inner big structure；In the pedestal 1, an axle approximately along horizontal direction is provided with the installation place corresponding to push card
Hole 11, and the axis hole 11 be set to it is outer it is big in small structure, i.e. the outer section 111 of axis hole 11 is big, inner section 112 small；When the rotating shaft 41
When being engaged with axis hole 11, rotating shaft 41 only has outer end and inner end to be in contact respectively with the hole wall of axis hole, the center section of rotating shaft 41
413 are not in contact with the hole wall of axis hole, so as to realize the two ends positioning of rotating shaft 41.
In the present embodiment, rotating shaft 41 is circle, and described axis hole 11 is square.
Further, in addition to a stop part 5, the stop part 5 is located at for preventing the rotating shaft 41 of the push card from suitable
The corresponding position that axis hole position assigned in the pedestal is exited.
In the present embodiment, the one side of push card 4 is provided with the first convex portion 42, the first convex portion 42 of the push card and magnetic circuit part
The armature 21 divided is in contact, and the another side of the push card is provided with the second convex portion 43, and the second convex portion 43 of the push card is with connecing
The movable contact spring 31 of contact portion point is in contact, when armature 21 is acted, and armature 21 drives the second convex portion 43 of push card to promote contact site
The movable contact spring 31 divided, makes the movable contact on movable contact spring 31 be in contact with the stationary contact on quiet spring.
In the present embodiment, stop part 5 is connected on movable contact spring, and the stop part 5 is located at the second convex portion 43 of the push card
Side, and be the rotating shaft 41 in the push card from the direction that the axis hole position for adapting to the pedestal is exited.
In the present embodiment, the second convex portion 43 of push card is two, is respectively provided at the both sides of the width of push card 4, described
Stop part 5 is located at the side of the second convex portion 43 of the another side position corresponding to the width of push card.
In the present embodiment, stop part 5 is integrally located on the movable contact spring 31, is with the push card by movable contact spring
The part that two convex portions are in contact is bent to form after stretching out；In order to strengthen the intensity of stop part 5, the present invention is by movable contact spring
The part being in contact with the second convex portion of the push card is first extended downwardly stretch out again after, be to extend downwardly during bending
Part is folded upward at, and is then again bent outwardly extending portion to side again, is eventually formed stop part 5.
Certainly, stop part can also be connected on armature, and the stop part is located to the first convex portion of the push card
Side, and be the rotating shaft in the push card from the direction that the axis hole position for adapting to the pedestal is exited.
Certainly, stop part can also be connected at the corresponding madial wall of shell, and shell is usually used to and the pedestal phase
Connection is interior so that the magnetic circuit part, contact portion and push card to be included in.
A kind of electromagnetic relay of strap type push card of the present invention, employs and is provided with one end of the length of push card 4
Point to a rotating shaft 41 on wherein one side of its width, and periphery of the peripheral size less than inner end 412 of the outer end 411 of rotating shaft 41
Size is to form outer small inner big structure；In the pedestal 1, in the installation place corresponding to push card provided with one approximately along dampening
Square to axis hole 11, and the axis hole 11 be set to it is outer it is big in small structure；When the rotating shaft 41 is engaged with axis hole 11, rotating shaft
The only hole wall of outer end 411 and inner end 412 respectively with axis hole 11 is in contact, the hole of the center section 413 of rotating shaft 41 not with axis hole
Wall is in contact, so as to realize the two ends positioning of rotating shaft 41.This structure of the present invention, pedestal is inserted in the rotating shaft 41 of push card
During axis hole 11, it is that small axle coordinates macropore, the generation of soft flocks in the assembling process of push card 4 can be avoided, and in assembling, rotating shaft 41
Only outer end and inner end are in contact with the hole wall of axis hole respectively, and axle and hole two ends coordinate middle resigning, realize complete with an axle
Into the function of two-point locating, the stability of the motion process of push card 4 can be improved, so that the usability of relay has been effectively ensured
Energy.
A kind of electromagnetic relay of strap type push card of the present invention, employs one stop part 5 of setting, and the stop part 5
It is located at the corresponding position for preventing the rotating shaft of the push card from being exited from the axis hole position for adapting to the pedestal.The present invention
This structure, by preventing the rotating shaft 41 of push card from being exited from the axis hole 11 of pedestal, so as to ensure push card and magnetic circuit
Partly, the fit precision of contact portion.Present invention employs rotating shaft 41 is set into circular, axis hole 11 is set to square, passes through fortune
Circular shaft matches somebody with somebody square hole during dynamic, can reduce the friction in motion to greatest extent.Present invention employs be integrally located at stop part 5
On the movable contact spring 31, and be by the part being in contact with the second convex portion of the push card of movable contact spring stretch out after bend
Formed.This structure of the present invention, realizes anti-back, with simple in construction, the characteristics of using effect is good using movable contact spring flange.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.Although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those skilled in the art, are not taking off
In the case of from technical solution of the present invention scope, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
More possible variation and modification, or it is revised as equivalents equivalent embodiment.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, all should fall
In the range of technical solution of the present invention protection.
Claims (9)
1. a kind of electromagnetic relay of strap type push card, including pedestal, magnetic circuit part, contact portion and push card；The magnetic
Road part and contact portion are attached separately on pedestal, the push card be piece type structure and be located at magnetic circuit part and contact site point it
Between；It is characterized in that：A rotating shaft of the one end of the length of the push card provided with the wherein one side for pointing to its width, and rotating shaft
The peripheral size of outer end be less than the peripheral size of inner end to form outer small inner big structure；In the pedestal, corresponding to pushing away
The installation place of dynamic card is provided with an axis hole approximately along horizontal direction, and the axis hole be set to it is outer it is big in small structure；When described
When rotating shaft is engaged with axis hole, rotating shaft only outer end and inner end are in contact with the hole wall of axis hole respectively, and the center section of rotating shaft is not
It is in contact with the hole wall of axis hole, so as to realize the two ends positioning of rotating shaft.
2. the electromagnetic relay of strap type push card according to claim 1, it is characterised in that：The rotating shaft is circle,
Described axis hole is square.
3. the electromagnetic relay of strap type push card according to claim 1 or 2, it is characterised in that：Further, also wrap
A stop part is included, the stop part is located at for preventing the rotating shaft of the push card from being exited from the axis hole position for adapting to the pedestal
Corresponding position.
4. the electromagnetic relay of strap type push card according to claim 3, it is characterised in that：The one side of the push card
Provided with the first convex portion, the first convex portion of the push card is in contact with the armature of magnetic circuit part, and the another side of the push card is set
There is the second convex portion, the second convex portion of the push card is in contact with the movable contact spring of contact portion, when armature movement, armature drives
Second convex portion of push card promotes the movable contact spring of contact portion, the movable contact on movable contact spring is connected with the stationary contact on quiet spring
Touch.
5. the electromagnetic relay of strap type push card according to claim 4, it is characterised in that：The stop part is connected to
On movable contact spring, the stop part is located at the side of the second convex portion of the push card, and is the rotating shaft in the push card from adaptation
In on the direction that the axis hole position of the pedestal is exited.
6. the electromagnetic relay of strap type push card according to claim 5, it is characterised in that：The second of the push card
Convex portion is two, is respectively provided at the both sides of the width of push card, the stop part be located at corresponding to push card width it is another
The side of second convex portion of side position.
7. the electromagnetic relay of the strap type push card according to claim 5 or 6, it is characterised in that：The stop part one
Body is located on the movable contact spring, is stretched out palintrope by the part being in contact with the second convex portion of the push card of movable contact spring
Folding is formed.
8. the electromagnetic relay of strap type push card according to claim 4, it is characterised in that：The stop part is connected to
On armature, the stop part is located at the side of the first convex portion of the push card, and is the rotating shaft in the push card from adapting to
On the direction that the axis hole position of the pedestal is exited.
9. the electromagnetic relay of strap type push card according to claim 3, it is characterised in that：Further, in addition to
Shell, the shell is connected with the pedestal in so that the magnetic circuit part, contact portion and push card to be included in, the resistance
Stopper is connected at the corresponding madial wall of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561855.5A CN107305825B (en) | 2017-07-11 | 2017-07-11 | A kind of electromagnetic relay of strap type push card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561855.5A CN107305825B (en) | 2017-07-11 | 2017-07-11 | A kind of electromagnetic relay of strap type push card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107305825A true CN107305825A (en) | 2017-10-31 |
| CN107305825B CN107305825B (en) | 2019-09-06 |
Family
ID=60150846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710561855.5A Active CN107305825B (en) | 2017-07-11 | 2017-07-11 | A kind of electromagnetic relay of strap type push card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107305825B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110349810A (en) * | 2019-06-28 | 2019-10-18 | 宁波金海电子有限公司 | A kind of strong shock resistance and the electromagnetic relay convenient for Automated assembly |
| CN111801763A (en) * | 2018-03-27 | 2020-10-20 | 欧姆龙株式会社 | Relay with a movable contact |
| CN112103137A (en) * | 2020-09-25 | 2020-12-18 | 湖南三易精工科技有限公司 | Push-rod relay |
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| CN102087932A (en) * | 2010-12-18 | 2011-06-08 | 厦门宏发电力电器有限公司 | Magnetic latching relay with symmetrical transmission structure |
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| JP2017054948A (en) * | 2015-09-10 | 2017-03-16 | 株式会社埼玉富士 | Electromagnetic device and latching type electromagnetic relay using the same |
| CN207009377U (en) * | 2017-07-11 | 2018-02-13 | 厦门宏发电力电器有限公司 | The electromagnetic relay of strap type push card |
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| CN102087932A (en) * | 2010-12-18 | 2011-06-08 | 厦门宏发电力电器有限公司 | Magnetic latching relay with symmetrical transmission structure |
| CN202167421U (en) * | 2011-08-12 | 2012-03-14 | 明光市三友电子有限公司 | Electromagnetic relay with integrated base |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801763A (en) * | 2018-03-27 | 2020-10-20 | 欧姆龙株式会社 | Relay with a movable contact |
| US11322327B2 (en) | 2018-03-27 | 2022-05-03 | Omron Corporation | Relay |
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| CN112103137A (en) * | 2020-09-25 | 2020-12-18 | 湖南三易精工科技有限公司 | Push-rod relay |
| CN112103137B (en) * | 2020-09-25 | 2023-08-01 | 湖南三易精工科技有限公司 | Push rod relay |
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| Publication number | Publication date |
|---|---|
| CN107305825B (en) | 2019-09-06 |
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