CN107622917A - A kind of electromagnetic relay - Google Patents
A kind of electromagnetic relay Download PDFInfo
- Publication number
- CN107622917A CN107622917A CN201710954880.XA CN201710954880A CN107622917A CN 107622917 A CN107622917 A CN 107622917A CN 201710954880 A CN201710954880 A CN 201710954880A CN 107622917 A CN107622917 A CN 107622917A
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- rod
- block
- housing
- electromagnetic relay
- insulation
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Abstract
The present invention relates to technical field of electronic devices, refer in particular to a kind of electromagnetic relay, including housing, the housing is arranged at intervals with two static contacts, the housing slidably connects push-rod assembly, the push-rod assembly includes the body of rod, insulation abuts block, push piece and moving contact, the body of rod is slidably connected to the housing, the body of rod is connected to described insulate with the push piece and abuts the both ends of block, moving contact is connected to one end that push piece abuts block away from insulation, and the moving contact is used for two static contacts that are turned on or off.Block connecting-rod body and push piece are abutted by using insulation, so as to which the body of rod of control and push piece, the moving contact of conducting are electrically isolated, it ensure that even if push rod or moving contact electric leakage, the body of rod there will not be high current by so as to ensure the life security of the security of control terminal and people.
Description
Technical field
The present invention relates to technical field of electronic devices, refers in particular to a kind of electromagnetic relay.
Background technology
Relay is the electronic device of a kind of " low voltage control high pressure break-make ", ensure that people can reliably and securely control
The work of high-tension apparatus.
Because relay is one " go-between " between high-tension electricity and low tension, therefore it needs high safety
Property.Such as it is current move back rod-type electromagnetic relay, for proof strength, therefore its push rod is metal, and moving contact also milli
Have to turn on without query, if therefore if moving contact leaks electricity, high-tension electricity can be directed on push rod, control terminal can be destroyed
Or the life security of people is threatened.
The content of the invention
The present invention provides a kind of electromagnetic relay for problem of the prior art.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of electromagnetic relay provided by the invention, including housing, the housing is arranged at intervals with two static contacts, described
Housing slidably connects push-rod assembly, and the push-rod assembly includes the body of rod, insulation abuts block, push piece and moving contact, the body of rod
The housing is slidably connected to, the body of rod is connected to described insulate with the push piece and abuts the both ends of block, and moving contact connects
One end that push piece abuts block away from insulation is connected to, the moving contact is used for two static contacts that are turned on or off.
Further, the push piece is hollow structure, and the side of the push piece offers through hole, set inside the push piece
There is the first spring, dynamic point block is slided and is located in push piece, and the both ends of first spring contact at the insulation and abut block respectively
With the moving contact.
Further, the insulation abuts block and is provided with fixed block, first bullet provided with one end close to the first spring
Spring is sheathed on the outside of the fixed block.
Further, coil, yoke shell, yoke plate, secured core and armature, the yoke are additionally provided with the housing
Shell is installed on the housing, and the yoke plate is covered on the yoke shell, and the coil is arranged at the inside of the yoke shell, institute
The inside that secured core is arranged at the coil is stated, the armature is slideably positioned in the inside of the secured core, the body of rod
The armature is fixedly connected on, the outer sheath of the body of rod is provided with second spring, and the both ends of second spring contradict yoke plate respectively
And armature；The body of rod is connected to the insulation through the yoke plate and abuts block；The secured core is provided with fixed column, institute
State fixed column and be fixedly connected on the housing through the yoke shell.
Further, the armature is provided with blind hole and the screwed hole connected with blind hole, the body of rod are bolted in armature, bar
Body is located in screwed hole, and the one end of the second spring away from yoke plate is located in blind hole.
Further, fixed seat and seal closure, the fixed seat are provided between the coil and the secured core
Both ends be respectively arranged with installing plate, the coil is arranged between two pieces of installing plates；Use is provided with the inside of the fixed seat
In the guide ring of block secured core, the cage is attached at the yoke plate.
Further, the electromagnetic relay also includes the ceramic case being arranged in the housing, the static contact grafting
In the ceramic case, the moving contact, first spring and the insulation abut block and are respectively positioned on inside the ceramic case.
Further, blowout magnet is provided with the outside of the ceramic case, the arc extinguishing positioned at the both sides of the ceramic case
There is a natural attraction between the sexes for magnet.
Further, the ceramic case is provided with carries out spacing limit base for abutting block to the insulation.
Further, it is provided with tracheae at the top of the ceramic case.
Beneficial effects of the present invention：Abut block connecting-rod body and push piece by using insulation, so as to the body of rod of control with
And push piece, the moving contact of conducting are electrically isolated, even if ensure that push rod or moving contact electric leakage, the body of rod there will not be high current
By so as to ensure the life security of the security of control terminal and people.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the schematic diagram of the push-rod assembly of the present invention.
Fig. 3 is the schematic diagram of the push piece of the present invention.
Fig. 4 is the schematic diagram of the ceramic case of the present invention.
1-housing, 2-static contact, 3-push-rod assembly, 4-ceramic case, 11-coil, 12-yoke shell, 13-yoke
Plate, 14-seal closure, 15-armature, 16-second spring, 17-fixed seat, 18-secured core, 31-body of rod, 32-insulation
Abutting block, the 33-the first spring, 34-moving contact, 35-push piece, 41-blowout magnet, 42-limit base, 43-tracheae,
151-blind hole, 152-screwed hole, 171-installing plate, 172-guide ring, 181-fixed column, 351-through hole, 321-fixed
Block.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
Bright, the content that embodiment refers to not is limitation of the invention.The present invention is described in detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of electromagnetic relay provided by the invention, including housing 1, the housing 1 are arranged at intervals
There are two static contacts 2, the housing 1 slidably connects push-rod assembly 3, and the push-rod assembly 3 includes the body of rod 31, insulation abuts block
32nd, push piece 35 and moving contact 34, the body of rod 31 are slidably connected to the housing 1, and the body of rod 31 is distinguished with the push piece 35
The both ends that the insulation abuts block 32 are connected to, moving contact 34 is connected to one end that push piece 35 abuts block 32 away from insulation, described
Moving contact 34 is used for two static contacts 2 that are turned on or off.
The present invention abuts the connecting-rod body 31 of block 32 and push piece 35 by using insulation, so as to the body of rod 31 of control and lead
General push piece 35, moving contact 34 are electrically isolated, even if ensure that push rod or moving contact 34 leak electricity, the body of rod 31 there will not be greatly
Electric current is by so as to ensure the life security of the security of control terminal and people.
Specifically, as shown in Fig. 2 the push piece 35 is hollow structure, moving contact 34 is installed with the inside of push piece 35, and dynamic
The both ends of contact 34 protrude out push piece 35 to be connected respectively with two static contacts 2 respectively, to ensure push piece 35 and moving contact
34 are reliably connected, so as to ensureing that push piece 35 can efficiently control the action of moving contact 34；In addition, the push piece 35
Side offers through hole 351, and the push piece 35 is internally provided with the first spring 33, and dynamic point block is slided and is located in push piece 35, institute
The both ends for stating the first spring 33 contact at the insulation abutting block 32 and the moving contact 34 respectively.When need connect two stationary contacts
When first 2, the body of rod 31, which up promotes, to abut two static contacts 2, now because two static contacts 2 are connected, moment meeting from contact
Larger electric current is produced, causes moving contact 34 to be impacted by electric current, and due to there is the presence of the first spring 33 so that it is dynamic to touch
First 34 are pressed to two static contacts 2 of abutting, therefore even if rush of current power is larger, moving contact 34 will not also act, so as to protect
The reliability that the present invention connects for high-pressure side is demonstrate,proved.
Specifically, as shown in figure 3, in the present embodiment, the insulation abuts block 32 and is provided with one close to the first spring 33
End is provided with fixed block 321, and first spring 33 is sheathed on the outside of the fixed block 321.Fixed block 321 is used for ensureing first
Spring 33 will not move, so as to ensure that the first spring 33 can reliably press during deformation and resetting to side
Moving contact 34；As preferable, the both ends of the first spring 33 are respectively fixedly connected with moving contact 34 and insulation fitting.
As shown in figure 1, in the present embodiment, coil 11, yoke shell 12, yoke plate 13, solid is additionally provided with the housing 1
Fixed core 18 and armature 15, the yoke shell 12 are installed on the housing 1, and the yoke plate 13 is covered on the yoke shell 12,
The coil 11 is arranged at the inside of the yoke shell 12, and the secured core 18 is arranged at the inside of the coil 11, described
Armature 15 is slideably positioned in the inside of the secured core 18, and the body of rod 31 is fixedly connected on the armature 15, the body of rod
31 outer sheath is provided with second spring 16, and the both ends of second spring 16 contradict yoke plate 13 and armature 15 respectively；The body of rod 31
The insulation, which is connected to, through the yoke plate 13 abuts block 32；The secured core 18 is provided with fixed column 181, the fixation
Post 181 is fixedly connected on the housing 1 through the yoke shell 12.It is first logical to coil 11 when needing two static contacts 2 to connect
Electricity so that coil 11 produces magnetic field, and secured core 18 is used for the magnetic force for increasing the magnetic field；Then yoke shell 12 and yoke plate 13 exist
Magnetize in the presence of magnetic field, armature 15 is moved upwards by the magnetic force of yoke plate 13, and drive is fixedly connected on pushing away for armature 15
Bar also moves upwards, so as to promote moving contact 34 to move upwards until being connected to two static contacts 2；After the power-off of coil 11,
Coil 11, yoke shell 12, yoke plate 13, successively losing magnetism, armature 15 moves down in the presence of the reset of second spring 16,
So as to drive moving contact 34 to depart from two static contacts 2, the effect of high-pressure side power-off is realized.And the fixed column of secured core 18
181 are fixedly connected on housing 1 through yoke shell 12, ensure secured core 18 will not move in the case where no matter whetheing there is magnetic field
It is dynamic, cause armature 15 to damage so as to avoid secured core 18 from being collided with armature 15.
Specifically, as shown in figure 1, the armature 15 is provided with blind hole 151 and the screwed hole 152 that is connected with blind hole 151, it is described
The body of rod 31 is bolted in armature 15, and the body of rod 31 is located in screwed hole 152, and the one end of the second spring 16 away from yoke plate 13 holds
In blind hole 151.The setting of blind hole 151, it is spacing to be carried out to second spring 16, second spring 16 is avoided in compression process
It is middle to have impact on the normal ON of push-rod assembly 3 to side swing；It is to ensure the body of rod and the body of rod 31 is threadedly connected to armature 15
On the premise of 31 are reliably connected with armature 15 so that the body of rod 31 is easy to dismount in armature 15, consequently facilitating being carried out more to the body of rod 31
Change.
Specifically, fixed seat 17 and seal closure 14 are provided between the coil 11 and the secured core 18, it is described solid
The both ends of reservation 17 are respectively arranged with installing plate 171, and the coil 11 is arranged between two pieces of installing plates 171；The fixed seat
17 inner side is provided with the guide ring 172 for block secured core 18, and the cage is attached at the yoke plate 13.Need
Illustrate, fixed seat 17 is insulation, and after ensureing that coil 11 is powered, electric current will not be transferred to shell, so as to improve
The security of the present invention；Guide ring 172 avoids cage from being swung and shadow in the presence of electric current cage is fixedly mounted
The normal work of push-rod assembly 3 is rung.
As shown in figure 1, in the present embodiment, the electromagnetic relay also includes the ceramic case being arranged in the housing 1
4, the static contact 2 is plugged in the ceramic case 4, and the moving contact 34, first spring 33 and the insulation abut block 32
It is respectively positioned on inside the ceramic case 4.The space that ceramic case 4 is formed with cage is vacuum space, and its inside does not have air, ensures
The part of the vacuum space is located in after two static contacts 2 turn on, will not because being heated up by electric current to cause to be oxidized,
So as to improve the working life of the present invention.
As shown in figure 1, in the present embodiment, the outside of the ceramic case 4 is provided with blowout magnet 41, positioned at the ceramics
There is a natural attraction between the sexes for the blowout magnet 41 of the both sides of shell 4, i.e., positioned at the side of ceramic case 4 close to the S poles ceramic case 4 of blowout magnet 41
Opposite side is close to the N poles of another blowout magnet 41.After moving contact 34 departs from two static contacts 2, because electric caused by power-off
Arc can elongate in the presence of two magnetic poles, so as to be more easy to extinguish, avoid static contact 2 and ruined with moving contact 34 because of arc burning
It is bad.
As shown in figure 1, in the present embodiment, the ceramic case 4 is provided with to be limited for abutting block 32 to the insulation
Position limit base 42, to ensure insulation abut block 32 will not deviate to side, ensure that moving contact 34 can smoothly with two
Static contact 2 is abutted/departed from.
As shown in figure 4, in the present embodiment, the top of the ceramic case 4 is provided with tracheae 43, manufactured to external vacuum
Machine carries out air extraction for the space between ceramic case 4 and seal closure 14, so as to produce vacuum space.
It is described above, only it is present pre-ferred embodiments, any formal limitation not is made to the present invention, although
The present invention is disclosed as above with preferred embodiment, but is not limited to the present invention, any person skilled in the art,
Do not depart from the range of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent change
The equivalent embodiment of change, as long as being without departing from technical solution of the present invention content, refer to according to the technology of the present invention to above example
Any simple modification, equivalent change and modification made, is belonged in the range of technical solution of the present invention.
Claims (10)
1. a kind of electromagnetic relay, including housing, the housing is arranged at intervals with two static contacts, and the housing slidably connects
Push-rod assembly, it is characterised in that：The push-rod assembly includes the body of rod, insulation abuts block, push piece and moving contact, and the body of rod slides
The housing is connected to, the body of rod is connected to described insulate with the push piece and abuts the both ends of block, and moving contact is connected to
Push piece abuts one end of block away from insulation, and the moving contact is used for two static contacts that are turned on or off.
2. electromagnetic relay according to claim 1, it is characterised in that：The push piece is hollow structure, the push piece
Side offers through hole, and the push piece is internally provided with the first spring, and dynamic point block is slided and is located in push piece, first spring
Both ends contact at the insulation respectively and abut block and the moving contact.
3. electromagnetic relay according to claim 2, it is characterised in that：The insulation abuts block and is provided with close to the first spring
One end be provided with fixed block, first spring housing is located at the outside of the fixed block.
4. electromagnetic relay according to claim 1, it is characterised in that：Be additionally provided with the housing coil, yoke shell,
Yoke plate, secured core and armature, the yoke shell are installed on the housing, and the yoke plate is covered on the yoke shell, institute
The inside that coil is arranged at the yoke shell is stated, the secured core is arranged at the inside of the coil, and the armature is slided and set
The inside of the secured core is placed in, the body of rod is fixedly connected on the armature, and the outer sheath of the body of rod is provided with the second bullet
Spring, the both ends of second spring contradict yoke plate and armature respectively；The body of rod is connected to the insulation through the yoke plate and supported
Connect block；The secured core is provided with fixed column, and the fixed column is fixedly connected on the housing through the yoke shell.
5. electromagnetic relay according to claim 4, it is characterised in that：The armature is provided with blind hole and connected with blind hole
Screwed hole, the body of rod are bolted in armature, and the body of rod is located in screwed hole, and the one end of the second spring away from yoke plate is installed with
In in blind hole.
6. electromagnetic relay according to claim 4, it is characterised in that：Set between the coil and the secured core
Have a fixed seat and seal closure, the both ends of the fixed seat are respectively arranged with installing plate, the coil be arranged on two pieces of installing plates it
Between；The guide ring for block secured core is provided with the inside of the fixed seat, the cage is attached at the yoke plate.
7. electromagnetic relay according to claim 1, it is characterised in that：The electromagnetic relay is also described including being arranged at
Ceramic case in housing, the static contact are plugged in the ceramic case, and the moving contact, first spring and the insulation are supported
Block is connect to be respectively positioned on inside the ceramic case.
8. electromagnetic relay according to claim 7, it is characterised in that：Arc extinguishing magnetic is provided with the outside of the ceramic case
Iron, there is a natural attraction between the sexes for the blowout magnet positioned at the both sides of the ceramic case.
9. electromagnetic relay according to claim 7, it is characterised in that：The ceramic case is provided with for the insulation
Abut block and carry out spacing limit base.
10. electromagnetic relay according to claim 7, it is characterised in that：Tracheae is provided with the top of the ceramic case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954880.XA CN107622917A (en) | 2017-10-13 | 2017-10-13 | A kind of electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954880.XA CN107622917A (en) | 2017-10-13 | 2017-10-13 | A kind of electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107622917A true CN107622917A (en) | 2018-01-23 |
Family
ID=61091939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954880.XA Pending CN107622917A (en) | 2017-10-13 | 2017-10-13 | A kind of electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107622917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389562A (en) * | 2018-02-11 | 2018-08-10 | 牡丹江师范学院 | A kind of multimedia piano and its automatic Playing method, system |
| CN114496660A (en) * | 2022-04-08 | 2022-05-13 | 江铃汽车股份有限公司 | Anti-adhesion high-voltage relay |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180123 |
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| RJ01 | Rejection of invention patent application after publication |