CN109449048A - Anti-interference protective device - Google Patents
Anti-interference protective device Download PDFInfo
- Publication number
- CN109449048A CN109449048A CN201811625055.6A CN201811625055A CN109449048A CN 109449048 A CN109449048 A CN 109449048A CN 201811625055 A CN201811625055 A CN 201811625055A CN 109449048 A CN109449048 A CN 109449048A
- Authority
- CN
- China
- Prior art keywords
- relay
- shell
- protective device
- pedestal
- column
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
- H01H45/10—Electromagnetic or electrostatic shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
- H01H45/02—Bases; Casings; Covers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a kind of anti-interference protective devices, comprising: power supply, sensor, relay and the signal receiving device being sequentially connected electrically；The relay includes shell, the upper cover plate being rotationally connected on the shell, the relay ontology being set in the shell, the more connecting columns for being set to the pedestal of the outer casing bottom and being connected between the shell and pedestal, and the connecting column is polystyrene material；The relay ontology includes electric shock reed, and metal wire is equipped between the connecting column and contact reed.The present invention can effectively shield interference of the external noise to device signal by introducing relay in signal receiving circuit, improve the stability of equipment operation, reduce manual maintenance, improve device efficiency；When short circuit occurs for relay circuit of the invention, relay can be popped up from pedestal, be disconnected column, and disconnecting circuit both ensure that relay will not be broken the safety for also ensuring that user uses.
Description
Technical field
The present invention relates to technical field of electric power, in particular to a kind of anti-interference protective device.
Background technique
Existing Anti-Jamming Technique has route package tinfoil, aluminium foil, gauze screen, magnet ring etc., these ways pass external environment
It is also invalid in the case that the interference broadcast has certain effect, but external noise is very severe.Relay can be introduced into circuit
Middle realization anti-interference function, by relay control circuit on-off, so that the reception of signal is controlled, to shield interference signal.
What relay was generally made of iron core, coil, armature, contact reed etc..As long as at the both ends of coil plus certain
Voltage, will pass through certain electric current in coil, to generate galvanomagnetic-effect, armature will be under the action of electromagnetic attracting force
The pulling force of return spring is overcome to be drawn to iron core, so that the movable contact with moving armature and stationary contact (normally opened contact) are attracted.Work as coil
After power-off, the attraction of electromagnetism also disappears therewith, and armature will return to original position under the reaction force of spring, makes touching
Point is discharged with original stationary contact (normally-closed contact).
The relay used now is mostly that relay is mounted on station, and relay includes relay ontology and outer
Shell, relay ontology include contact reed, and relay ontology is installed inside the shell, and relay ontology is equipped with stabilizer blade, on shell
Equipped with gasket identical with shell shape, spring is equipped between gasket and shell, the both ends of spring are solid with gasket and shell respectively
It is fixed to connect, it is equipped with the through-hole passed through for stabilizer blade on shell and gasket, the company of polystyrene material is equipped between shell and gasket
Column is connect, the both ends of connecting column are fixedly connected with shell and gasket respectively, and metal wire, shell are equipped between connecting column and contact reed
It is equipped with the connecting hole passed through for metal wire；Connecting column and spring can be made to cooperate using this relay, allow relay
Ontology works normally, and after the raising of contact reed temperature, connecting column melts, and shell is separated with gasket, allows relay from station
That section of circuit to fall off where relay, which disconnects, guarantees user using safe, but after connecting column thawing, due to the bullet of spring
Relay will be popped up and directly be separated with gasket by power, be easy for being broken after causing relay to be projected out.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of anti-interference guarantor
Protection unit.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of anti-interference protective device, comprising: according to
Power supply, sensor, relay and the signal receiving device of secondary electrical connection；
The relay include shell, the upper cover plate being rotationally connected on the shell, be set in the shell after
Electric appliance ontology, the pedestal for being set to the outer casing bottom and more connecting columns being connected between the shell and pedestal, it is described
Connecting column is polystyrene material；
The relay ontology includes electric shock reed, and metal wire is equipped between the connecting column and contact reed, described outer
The connecting hole passed through for the metal wire is offered on shell；
Support column is additionally provided between the shell and pedestal, the surface of the shell is disposed with ceramics from the inside to the outside
Layer and rubber layer.
Preferably, the sensor is used to control the actuating of relay according to external input signal, passes through the relay
Disconnection and be closed control circuit on-off, to control reception of the signal receiving device to signal.
Preferably, the bottom of the support column is connected with the chuck that diameter is greater than the support column, opens on the pedestal
Equipped with the jack for support column insertion.
Preferably, the jack bottom is connected with the first spring, and the bottom end of the chuck is upper with first spring
End connection, the support top end is connect with the outer casing bottom.
Preferably, the support column has an inclined side, and the bottom end of the inclined side is connected to the chuck
Surface.
Preferably, the side of the pedestal offers the first post holes of perforation to the jack, in first post holes
It is inserted with inserting column, the outer end of the inserting column is connected with the first pulling plate, and the inner end of the inserting column, which is connected with, presses against institute for cooperating
State the heading on the inclined side of support column.
Preferably, third spring is connected between the heading and the inner wall of jack.
Preferably, the movable end of the upper cover plate is connected with latch, offers lockhole on the latch.
Preferably, the position that the lockhole is corresponded on the side wall of the shell offers the second post holes, second column
The locking post for passing through second post holes and being inserted into the lockhole is provided in hole.
Preferably, the outer end of the locking post is connected with the second pulling plate, between second pulling plate and the side wall of shell
Connect second spring.
The working principle of the invention:
The present invention controls relay after sensor has signal output by the way that relay to be introduced into signal receiving circuit
Movement, relay closure pass output signal, signal receiving device are made to receive signal, and the signal for shielding external component is dry
It disturbs, improves the stability of equipment operation, reduce manual maintenance, improve device efficiency.When sensor no signal, relay is disconnected
It opens, route disconnects, and signal receiving device will not receive signal, to shield interference signal.On the other hand, the present invention also passes through
The structure of relay is improved, circuit safety can not only be protected, moreover it is possible to which protective relay itself avoids it from being damaged.
The working principle of relay in the present invention:
Relay of the invention, in use, relay is mounted on station by pedestal, relay is at this time with regard to normal work
Make, when contact reed generation short circuit, will lead to the temperature near contact reed and increase, result even in neighbouring conducting wire and start
Melt, the temperature of contact reed can be transmitted on connecting column by metal wire, since the thermal conductivity of metal wire is relatively good, can will be touched
The temperature of point reed is transmitted on connecting column, and since connecting column is polystyrene material, melting temperature is at 80-115 DEG C, contact
When short circuit occurs for the circuit lead near reed, temperature is much higher than the temperature that connecting column melts.After connecting column melts, the bottom of due to
It is connected with support rod in seat, and support rod is fixedly connected with shell, the bottom end of support rod is connected with the first spring, the first spring
It is stationarily connected in pedestal again, by the elastic force of the first spring, relay is just directly flicked and jacked up by support rod, relay
Just thoroughly it is detached from from station.And since support column has an inclined side, the bottom of support column is connected with diameter greater than institute
State the chuck of support column；The side of inclined side is additionally provided with heading and third spring, topstick is headed a ball on inclined side, with branch
Strut is popped up from jack, and third spring is gradually compressed, and the elastic force of third spring is gradually increased, and is headed a ball to inclined side
Pressure on top surface it is increasing, to slowly be reduced to support column, be gradually reduced the pop-up speed of support column, prevent from supporting
Relay on column is broken.On the other hand, support column can be made laterally to pop up, in order to which relay is detached from the connecting column disconnected, protected
Circuit is demonstrate,proved to disconnect.
In the present invention, by introducing relay in signal receiving circuit, external noise is effectively shielded to device signal
Interference, improve equipment operation stability, reduce manual maintenance, improve device efficiency.Using the relay in the present invention,
By the cooperation of connecting column and support rod, after the temperature of contact reed increases, connecting column melts, the spring connected on support rod
Support rod will be popped up, since support rod is fixedly connected with shell, such support rod just just directly allows shell jack-up
After relay ontology is detached from from station, and support rod jacks up shell, shell will not be flown by bullet and be directly connected to prop up
On strut, and shell ejection process can slowly be slowed down, and both ensure that relay will not be broken and also ensured what user used
Safety.
The beneficial effects of the present invention are: the present invention by introducing relay in signal receiving circuit, can be shielded effectively outside
Interference of portion's noise to device signal improves the stability of equipment operation, reduces manual maintenance, improves device efficiency；This hair
When short circuit occurs for bright relay circuit, relay can be popped up from pedestal, be disconnected column, disconnecting circuit, both ensure that after
Electric appliance will not be broken the safety for also ensuring that user uses.
Detailed description of the invention
Fig. 1 is the functional block diagram of anti-interference protective device of the invention；
Fig. 2 is the structural schematic diagram of the relay of anti-interference protective device of the invention；
Fig. 3 is the cross-sectional view of pedestal and connecting column cooperation of the invention；
Fig. 4 is the cross-sectional view of another state of pedestal and connecting column cooperation of the invention；
Fig. 5 is the cross-sectional view of upper cover plate and shell cooperation of the invention；
Fig. 6 is the cross-sectional view of the thickness direction of shell of the invention；
Fig. 7 is the line principle schematic diagram of the anti-interference protective device in a kind of embodiment of the invention.
Description of symbols:
1-shell；2-upper cover plates；3-pedestals；4-connecting columns；5-support columns；6-relay ontologies；7-ceramics
Layer；8-rubber layers；10-the second post holes；11-locking posts；12-the second pulling plate；13-second springs；20-latch；
21-lockholes；30-jacks；31-the first spring；32-the first post holes；33-inserting columns；34-the first pulling plate；35-headings；
36-third springs；50-chucks；51-inclined sides；100-sensors；101-relays；102-signals receive dress
It sets；.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
As shown in figs. 1-7, a kind of anti-interference protective device of the present embodiment, comprising: the power supply that is sequentially connected electrically, sensing
Device, relay and signal receiving device.
Relay includes shell 1, the upper cover plate being rotationally connected on shell 12, the relay ontology being set in shell 1
6, the more connecting columns 4 for being set to the pedestal 3 of 1 bottom of shell and being connected between shell 1 and pedestal 3；Relay ontology 6 includes
Get an electric shock reed, and metal wire is equipped between connecting column 4 and contact reed, offers the connecting hole passed through for metal wire on shell 1.
Support column 5 is additionally provided between shell 1 and pedestal 3, the surface of shell 1 is disposed with ceramic layer 7 from the inside to the outside
With rubber layer 8.Ceramic layer 7 enhances the insulation performance of shell 1, and rubber layer 8 can form shell 1 and protect, prevent it is therein after
Electric appliance ontology 6 is broken.
Sensor is used to control the actuating of relay according to external input signal, disconnection and closure control electricity by relay
The on-off on road, to control reception of the signal receiving device to signal.The actuating of relay is controlled after sensor has signal output,
Relay closure passes output signal, so that signal receiving device is received signal, shields the signal interference of external component, improves
The stability of equipment operation, reduces manual maintenance, improves device efficiency.When sensor no signal, relay is disconnected, route
It disconnects, signal receiving device will not receive signal, to shield interference signal.
The bottom of support column 5 is connected with the chuck 50 that diameter is greater than support column 5, offers on pedestal 3 and is inserted into for support column 5
Jack 30.30 bottom of jack is connected with the first spring 31, and the bottom end of chuck 50 is connect with the upper end of the first spring 31, support column
5 tops are connect with 1 bottom of shell.
Relay of the invention, in use, relay is mounted on station by pedestal 3, relay is just normal at this time
Work will lead to the temperature near contact reed and increase, result even in neighbouring conducting wire and open when contact reed generation short circuit
Begin to melt, the temperature of contact reed can be transmitted on connecting column 4 by metal wire, can since the thermal conductivity of metal wire is relatively good
The temperature of contact reed is transmitted on connecting column 4, since connecting column 4 is polystyrene material, melting temperature is in 80-115
DEG C, when short circuit occurs for the circuit lead near contact reed, temperature is much higher than the temperature that connecting column 4 melts.When connecting column 4 melts
Afterwards, due to being connected with support rod in pedestal 3, and support rod is fixedly connected with shell 1, and the bottom end of support rod is connected with the first bullet
Spring 31, the first spring 31 are stationarily connected in pedestal 3 again, and by the elastic force of the first spring 31, support rod is just directly by relay
Device is flicked and is jacked up, and relay is just thoroughly detached from from station.Both it ensure that relay will not also ensure user by breaking
Using safer.
Support column 5 has an inclined side 51, and the bottom end of inclined side 51 is connected to the surface of chuck 50.The side of pedestal 3
Portion offers the first post holes 32 of perforation to jack 30, is inserted with inserting column 33 in the first post holes 32, the outer end of inserting column 33 is connected with
First pulling plate 34, the inner end of inserting column 33 are connected with for cooperating the heading 35 on the inclined side 51 for pressing against support column 5.Heading
Third spring 36 is connected between 35 and the inner wall of jack 30.
And since support column 5 has an inclined side 51, the bottom of support column 5 is connected with the card that diameter is greater than support column 5
Disk 50；The side of inclined side 51 is additionally provided with heading 35 and third spring 36,35 topsticks is headed a ball on inclined side 51, with branch
Strut is popped up from jack 30, and third spring 36 is gradually compressed, and the elastic force of third spring 36 is gradually increased, and is headed a ball 35 pairs
The pressure on top surface of inclined side 51 is increasing, to slowly be reduced to support column 5, makes the pop-up speed of support column 5 gradually
Reduce, prevents the relay on support column 5 from breaking.On the other hand, 5 side of support column can be made to pop-up, in order to relay disengaging
The connecting column 4 of disconnection guarantees that circuit disconnects.
Specifically, referring to 2-3, when support column 5 is popped up from jack 30 by the first spring 31 jack-up, with support column 5 to
Upper movement, inclined side 51 gradually squeezes heading 35, thus compress third spring 36 gradually, 35 pairs of inclined sides 51 of heading a ball
Pressure on top surface it is increasing, thus heading 35 pairs of support columns 5 frictional force be gradually increased, make the pop-up speed of support column 5 gradually
Reduce；When support column 5 moves to highest point, referring to Fig. 4, heading 35 is pressed in 50 top of chuck, blocks chuck 50, support column 5 stops
Only move；It is broken to prevent support column 5 to be thoroughly detached from pedestal 3.On the other hand, under the press of heading 35,5 edge of support column
51 side of inclined side is detached from the connecting column 4 disconnected to pop-up, convenient for relay.Relay is repaired or is needed when needing
When relay after dismounting pop-up, by drawing heading 35 outside the first pulling plate 34, can column 5 easy to support thoroughly unloaded from jack 30
Out.
The movable end of upper cover plate 2 is connected with latch 20, and lockhole 21 is offered on latch 20.It is right on the side wall of shell 1
It answers the position of lockhole 21 to offer the second post holes 10, is provided in the second post holes 10 for across the second post holes 10 and being inserted into lock
Locking post 11 in hole 21.The outer end of locking post 11 is connected with the second pulling plate 12, connects between the second pulling plate 12 and the side wall of shell 1
Connect second spring 13.
Referring to Fig. 5, setting upper cover plate 2 can be convenient for that the relay ontology 6 in shell 1 is repaired or replaced.It uses
When, it is first outer draw the second pulling plate 12, be detached from locking post 11 from lockhole 21, then i.e. openable upper cover plate 2, in it after
Electric appliance ontology 6 is repaired or replaced.It covers upper cover plate 2 again later, then unclamps the second pulling plate 12, acted in the elastic force of spring
Under, locking post 11 passes through the second post holes 10 and is inserted into lockhole 21, and upper cover plate 2 is locked on shell 1.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (10)
1. a kind of anti-interference protective device characterized by comprising power supply, sensor, relay and the signal being sequentially connected electrically
Reception device；
The relay includes shell, the upper cover plate being rotationally connected on the shell, the relay being set in the shell
Ontology, the pedestal for being set to the outer casing bottom and more connecting columns being connected between the shell and pedestal, the connection
Column is polystyrene material；
The relay ontology includes electric shock reed, metal wire is equipped between the connecting column and contact reed, on the shell
Offer the connecting hole passed through for the metal wire；
Be additionally provided with support column between the shell and pedestal, the surface of the shell be disposed with from the inside to the outside ceramic layer and
Rubber layer.
2. anti-interference protective device according to claim 1, which is characterized in that the sensor is used for according to external input
Signal control relay movement, by the disconnection of the relay and the on-off of closure control circuit, to control the signal
Reception of the reception device to signal.
3. anti-interference protective device according to claim 1, which is characterized in that the bottom of the support column is connected with diameter
Greater than the chuck of the support column, the jack for support column insertion is offered on the pedestal.
4. anti-interference protective device according to claim 1, which is characterized in that the jack bottom is connected with the first bullet
Spring, the bottom end of the chuck are connect with the upper end of first spring, and the support top end is connect with the outer casing bottom.
5. anti-interference protective device according to claim 4, which is characterized in that the support column has an inclined side,
The bottom end of the inclined side is connected to the surface of the chuck.
6. anti-interference protective device according to claim 5, which is characterized in that the side of the pedestal offers perforation extremely
First post holes of the jack is inserted with inserting column in first post holes, and the outer end of the inserting column is connected with the first pulling plate, described
The inner end of inserting column is connected with for cooperating the heading on the inclined side for pressing against the support column.
7. anti-interference protective device according to claim 6, which is characterized in that connect between the heading and the inner wall of jack
It is connected to third spring.
8. anti-interference protective device according to claim 1, which is characterized in that the movable end of the upper cover plate is connected with lock
Tight plate offers lockhole on the latch.
9. anti-interference protective device according to claim 8, which is characterized in that correspond to the lock on the side wall of the shell
The position in hole offers the second post holes, is provided in second post holes for across second post holes and being inserted into the lock
Locking post in hole.
10. anti-interference protective device according to claim 9, which is characterized in that the outer end of the locking post is connected with
Two pulling plates connect second spring between second pulling plate and the side wall of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625055.6A CN109449048A (en) | 2018-12-28 | 2018-12-28 | Anti-interference protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625055.6A CN109449048A (en) | 2018-12-28 | 2018-12-28 | Anti-interference protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109449048A true CN109449048A (en) | 2019-03-08 |
Family
ID=65538681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625055.6A Pending CN109449048A (en) | 2018-12-28 | 2018-12-28 | Anti-interference protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109449048A (en) |
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