CN209487435U - A kind of cam self-locking maintenance electromagnetic relay - Google Patents
A kind of cam self-locking maintenance electromagnetic relay Download PDFInfo
- Publication number
- CN209487435U CN209487435U CN201822169280.5U CN201822169280U CN209487435U CN 209487435 U CN209487435 U CN 209487435U CN 201822169280 U CN201822169280 U CN 201822169280U CN 209487435 U CN209487435 U CN 209487435U
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- terminal
- cam
- electromagnetic relay
- coil
- magnetic path
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Abstract
The utility model discloses a kind of cam self-locking maintenance electromagnetic relays, including pedestal, coil mechanism, magnetic path, push piece, shaft, cam, reed terminal, normally closed terminal and normally opened terminal, coil mechanism, magnetic path are equipped on pedestal, coil mechanism is attracted magnetic path, magnetic path, which drives, pushes piece to swing up and down, piece one end is pushed to push shaft rotation, cam is moved synchronously with shaft, and cam actuating spring terminal is connect with normally closed terminal or normally opened terminal.The connecting and disconnecting that cam actuating spring terminal is used in the cam self-locking maintenance electromagnetic relay, do not use permanent magnet in the electromagnetic relay, can avoid external strong magnetic disturbance and the maloperation that generates；And the cam self-locking maintenance electromagnetic relay is controlled by closing coil mechanism, the once electrification of coil mechanism is to connect, and another once electrification is to disconnect, and the driving power of coil mechanism does not have polar requirement.
Description
Technical field
The utility model relates to the technical field of relay, in particular to a kind of cam self-locking maintenance electromagnetic relay.
Background technique
Electromagnetic relay is a kind of electronic control device, it has control system and by control system, is usually applied to certainly
In dynamic control circuit, it is actually to go control larger current, one kind of higher voltage with lesser electric current, lower voltage
" automatic switch ".Therefore the effects of playing automatic adjustment, safeguard protection, conversion circuit in circuit.
Electromagnetic relay is usually to increase to the magnetic circuit system in electromagnetic relay using permanent magnet, utilizes the magnetic of permanent magnet
Property maintain the actuation of armature and iron core to keep the output of contact.But permanent magnet is easy to produce malfunction when by external strong magnetic disturbance
Make；And when using permanent magnet, relay driving needs two groups of opposed polarity voltage outputs to control the dynamic of relay respectively
Make, can not directly be switched on the basis of conventional electromagnetic relay.
For this purpose, we have proposed a kind of cam self-locking maintenance electromagnetic relays.
Utility model content
The main purpose of the utility model is to provide a kind of cam self-locking maintenance electromagnetic relays, have not by strong magnetic
The advantage of requirement that the relay of interference is opened and closed, driving voltage is nonpolarity and energy conservation.
To achieve the above object, the utility model provides a kind of cam self-locking maintenance electromagnetic relay, including pedestal,
Coil mechanism, magnetic path, promotion piece, shaft, cam, reed terminal, normally closed terminal and normally opened terminal, the coil mechanism,
The magnetic path is equipped on the pedestal, and the coil mechanism is attracted the magnetic path, and the magnetic path drives institute
It states and piece is pushed to swing up and down, described promotion piece one end pushes shaft rotation, and the cam is moved synchronously with the shaft, described convex
Wheel pushes the reed terminal to connect with the normally closed terminal or the normally opened terminal.
Preferably, the coil mechanism include skeleton, coil and coil pin, the coil by enameled wire along the vertical direction
Constituted around the skeleton, two coil pins are connected to the both ends of the coil, the coil pin with it is external
Power supply connection.
Preferably, the magnetic path includes spring, armature and iron core, and the armature is rotated around a trunnion axis, the bullet
Spring is arranged along the vertical direction, and the lower spring end is fixed on the pedestal, and the spring upper end is fixed on described armature one end,
Between the coil and the armature, the iron core is fixed on the skeleton iron core.
Preferably, the promotion piece is set to the armature upper surface, the horizontal pivot that the shaft is arranged along the longitudinal direction
It being connected on pedestal, the shaft is set to below the promotion piece, and the turning circumference of the shaft is equipped with several first card slots,
When pushing piece to push shaft rotation, described promotion piece one end is sticked in wherein first card slot.
Preferably, the normally opened terminal, the reed terminal, the normally closed terminal from top to bottom set gradually and along left and right
Direction is set in parallel on the pedestal, and the reed terminal is between the normally closed terminal and the normally opened terminal.
Preferably, the horizontal pivot that the cam is arranged along the longitudinal direction is connected on pedestal, the rotation circle of the cam
Several the second card slots are evenly distributed on week, the reed terminal movable end is located above second card slot.
Preferably, the magnetic path also includes yoke, and the yoke is set on the armature.
The prior art is compared, the utility model has the following beneficial effects: the cam self-locking maintenance electricity of the utility model
The connecting and disconnecting of cam actuating spring terminal are used in magnetic relay, do not use permanent magnet in the electromagnetic relay, then reed
The connecting and disconnecting of terminal can avoid external strong magnetic disturbance and the maloperation that generates；And the cam self-locking maintenance electromagnetic relay
It no matter being to turn on or disconnecting, is controlled by closing coil mechanism, the once electrification of coil mechanism is to connect, another
Secondary to be powered to disconnect, the driving power of coil mechanism does not have polar requirement.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the cam self-locking maintenance electromagnetic relay of the utility model embodiment.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
The cam self-locking maintenance electromagnetic relay 100 of the utility model by 60 actuating spring terminal 70 of cam with it is normally opened
Terminal 90 or normally closed terminal 80 are connected, to control the conducting and disconnection of electromagnetic relay.The cam self-locking of the utility model is protected
Type electromagnetic relay 100 is held to include pedestal 10, coil mechanism 20, magnetic path 30, push piece 40, shaft 50, cam 60, reed
Terminal 70, normally closed terminal 80 and normally opened terminal 90.
Fig. 1 is the three-dimensional structure diagram of the cam self-locking maintenance electromagnetic relay 100 of the utility model embodiment.It ties below
Fig. 1 is closed the structure of cam self-locking maintenance electromagnetic relay 100 is described in detail:
As shown in Figure 1, the coil mechanism 20 of the present embodiment, magnetic path 30 are set on pedestal 10, coil mechanism 20 is inhaled
Close magnetic path 30.Specifically, the coil mechanism 20 of the present embodiment includes skeleton 21, coil 22 and coil pin 23, coil 22
Be made of enameled wire around skeleton 21, two coil pins 23 are connected to the both ends of coil 22, coil pin 23 with it is external
The connection of power supply (not shown).Furthermore the magnetic path 30 of the present embodiment includes spring 31, armature 32 and iron core 33, armature 32
It is rotated around a trunnion axis, spring 31 is arranged along the vertical direction, and 31 lower end of spring is fixed on pedestal 10, and 31 upper end of spring is fixed on
32 one end of armature, between coil 22 and armature 32, iron core 33 is fixed on skeleton 21 iron core 33.Preferably, the present embodiment
Magnetic path 30 also include yoke 34, yoke 34 is set on armature 32, and yoke 34 is used to enhance the suction-combining force of electromagnetic coil, will
The magnetic line of force that electromagnetic coil generates is enclosed in inside, improves the efficiency of electromagnet.
Further, please continue to refer to Fig. 1, the magnetic path 30 of the present embodiment, which drives, pushes piece 40 to swing up and down, and pushes
40 one end of piece pushes shaft 50 to rotate.Specifically, pushing piece 40 to be set to 32 upper surface of armature, when armature 32 is rotated with trunnion axis
When, push piece 40 also and then to swing up and down.Meanwhile the horizontal pivot that shaft 50 is arranged along the longitudinal direction is connected on pedestal 10, is turned
Axis 50, which is set to, pushes 40 lower section of piece, is evenly distributed with several the first card slots 51 in shaft 50, it is preferred that of the first card slot 51
Number is 8.When pushing piece 40 that shaft 50 is pushed to rotate, 40 one end of piece is pushed to be sticked in wherein one first card slot 51, pushed
Piece 40 pushes shaft 50 to rotate one first angle of rotation, it is preferred that the first angle of rotation is 45 degree, but is not limited thereto.
Furthermore cam 60 is moved synchronously with shaft 50, and the horizontal pivot that cam 60 is arranged along the longitudinal direction is connected to pedestal
On 10,60 actuating spring terminal 70 of cam is connect with normally closed terminal 80 or normally opened terminal 90.Wherein, in the turning circumference of cam 60
Several the second card slots 61 are evenly distributed with, 70 movable end of reed terminal is located at 61 top of the second card slot, when shaft 50 rotates
Cam 60 rotates one second angle of rotation.Wherein, the first angle of rotation is identical as the second angle of rotation, when the first angle of rotation is 45 degree, the
Two angles of rotation are also 45 degree.Furthermore the number of the first card slot 51 is twice of the second card slot 61, and the second number of card slot 61 is 4.
It is convex block between two neighboring second card slot 61, when pushing piece 40 to be sticked in the first card slot 51 of shaft 50, band turn
Axis 50 rotates 45 degree, and cam 60 rotates synchronously 45 degree, and 70 movable end of reed terminal is located in the second card slot 61 or is located at convex block
Highest point.
Further, the reed terminal 70 of the present embodiment, normally closed terminal 80 and normally opened terminal 90 are put down in left-right direction respectively
Row is set on pedestal 10, and reed terminal 70 is between normally closed terminal 80 and normally opened terminal 90.When 70 movable end of reed terminal
When in the second card slot 61, reed terminal 70 is connect with normally closed terminal 80, and the cam self-locking maintenance electromagnetic relay 100 is disconnected
It opens；When 70 movable end of reed terminal is located at convex block highest point, reed terminal 70 is connect with normally opened terminal 90, which protects
Hold the conducting of type electromagnetic relay 100.
In conjunction with the structure of above-mentioned cam self-locking maintenance electromagnetic relay 100, it is assumed that the cam self-locking maintenance electromagnetism
Relay 100 is initially that off-state is illustrated, and it is as follows to describe specific working principle:
When cam self-locking maintenance electromagnetic relay 100 is initially off-state, at this point, reed terminal 70 and normal-closed end
Son 80 connects, and reed terminal 70 is located in a certain second card slot 61.When the external power supply conducting that coil pin 23 accesses, coil
22 generate magnetic field, 33 adhesive armature 32 of iron core, and attraction overcomes the pulling force of spring 31 to rotate with moving armature 32 with trunnion axis,
Armature 32 close to 31 one end of spring is rotated up, and the armature 32 far from 31 one end of spring rotates down.Armature 32, which drives, to be pushed
Piece 40 rotates, and pushes piece 40 that shaft 50 is pushed to rotate 45 degree, shaft 50 rotates 45 degree with moving cam 60,70 movable end of reed terminal
Positioned at convex block highest point, at this point, reed terminal 70 is connect with normally opened terminal 90, cam self-locking maintenance electromagnetic relay 100
State at this time be on state.When coil pin 23 and external power supply disconnect, armature 32 resets under the action of spring 31,
Armature 32, which drives, pushes piece 40 to reset.Shaft 50 is not fixedly connected with relationship with piece 40 is pushed, and 50 position of shaft is constant, then, and line
On state can still be maintained by the cam self-locking maintenance electromagnetic relay 100 with no power in loop mechanism 20.
It when 22 system of coil is once again powered up, repeats the above steps, pushes piece 40 that shaft 50 is pushed to rotate 45 degree, shaft 50
Band moving cam 60 rotates 45 degree, and 70 movable end of reed terminal is located in the second card slot 61, at this point, reed terminal 70 and normally closed terminal
80 connections, the state at this time of cam self-locking maintenance electromagnetic relay 100 are off-state.
In the above process, lead to the conducting of the achievable cam self-locking maintenance electromagnetic relay 100 of primary electricity, and does not have to continue
Power supply, can lower energy consumption；The disconnection of cam self-locking maintenance electromagnetic relay 100 can be realized when being once again powered up.The cam
Self-locking maintenance electromagnetic relay 100 controls the movement and release of relay without two groups of opposed polarity voltages respectively.
The prior art is compared, the utility model has the following beneficial effects: the cam self-locking maintenance electricity of the utility model
The connecting and disconnecting of 60 actuating spring terminal 70 of cam are used in magnetic relay 100, do not use permanent magnet in the electromagnetic relay,
Then the connecting and disconnecting of reed terminal 70 can avoid external strong magnetic disturbance and the maloperation that generates；And the cam self-locking maintenance electricity
No matter magnetic relay 100 be to turn on or disconnect, be all to be controlled by closing coil mechanism 20, coil mechanism 20 it is primary
It is powered to connect, another once electrification is to disconnect, and the driving power of coil mechanism 20 does not have polar requirement.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of cam self-locking maintenance electromagnetic relay, which is characterized in that including pedestal, coil mechanism, magnetic path, promotion
Piece, shaft, cam, reed terminal, normally closed terminal and normally opened terminal, the coil mechanism, the magnetic path are equipped with described
On pedestal, the coil mechanism is attracted the magnetic path, and the magnetic path drives the promotion piece to swing up and down, described to push away
Movable plate one end pushes shaft rotation, and the cam is moved synchronously with the shaft, and the cam pushes the reed terminal and institute
State normally closed terminal or the normally opened terminal connection.
2. cam self-locking maintenance electromagnetic relay according to claim 1, which is characterized in that the coil mechanism includes
Skeleton, coil and coil pin, the coil are made of around the skeleton along the vertical direction enameled wire, and two coils draw
Foot is connected to the both ends of the coil, and the coil pin is connect with external power supply.
3. cam self-locking maintenance electromagnetic relay according to claim 2, which is characterized in that the magnetic path includes
Spring, armature and iron core, the armature are rotated around a trunnion axis, and the spring is arranged along the vertical direction, and the lower spring end is solid
Due on the pedestal, the spring upper end is fixed on described armature one end, and the iron core is located at the coil and the armature
Between, the iron core is fixed on the skeleton.
4. cam self-locking maintenance electromagnetic relay according to claim 3, which is characterized in that the promotion piece is set to institute
Armature upper surface is stated, the horizontal pivot that the shaft is arranged along the longitudinal direction is connected on pedestal, and the shaft is set to the promotion
Below piece, the turning circumference of the shaft is equipped with several first card slots, described when pushing piece to push shaft rotation
Piece one end is pushed to be sticked in wherein first card slot.
5. cam self-locking maintenance electromagnetic relay according to claim 1, which is characterized in that the normally opened terminal, institute
State reed terminal, the normally closed terminal is from top to bottom set gradually and is set on the pedestal in parallel in left-right direction, the spring
Piece terminal is between the normally closed terminal and the normally opened terminal.
6. cam self-locking maintenance electromagnetic relay according to claim 1, which is characterized in that the cam is along front and back
The horizontal pivot of direction arrangement is connected on pedestal, several the second card slots, institute are evenly distributed in the turning circumference of the cam
Reed terminal movable end is stated to be located above second card slot.
7. cam self-locking maintenance electromagnetic relay according to claim 3, which is characterized in that the magnetic path also wraps
Containing yoke, the yoke is set on the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169280.5U CN209487435U (en) | 2018-12-21 | 2018-12-21 | A kind of cam self-locking maintenance electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169280.5U CN209487435U (en) | 2018-12-21 | 2018-12-21 | A kind of cam self-locking maintenance electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209487435U true CN209487435U (en) | 2019-10-11 |
Family
ID=68126578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822169280.5U Expired - Fee Related CN209487435U (en) | 2018-12-21 | 2018-12-21 | A kind of cam self-locking maintenance electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209487435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863533A (en) * | 2020-08-06 | 2020-10-30 | 南京贝思特信息科技有限公司 | Multifunctional contactor |
-
2018
- 2018-12-21 CN CN201822169280.5U patent/CN209487435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863533A (en) * | 2020-08-06 | 2020-10-30 | 南京贝思特信息科技有限公司 | Multifunctional contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191011 Termination date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |