CN201048111Y - DC micro-power consumption relay of power-off memory state - Google Patents
DC micro-power consumption relay of power-off memory state Download PDFInfo
- Publication number
- CN201048111Y CN201048111Y CNU2007201497591U CN200720149759U CN201048111Y CN 201048111 Y CN201048111 Y CN 201048111Y CN U2007201497591 U CNU2007201497591 U CN U2007201497591U CN 200720149759 U CN200720149759 U CN 200720149759U CN 201048111 Y CN201048111 Y CN 201048111Y
- Authority
- CN
- China
- Prior art keywords
- relay
- permanent magnet
- power
- iron core
- power consumption
- 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.)
- Expired - Fee Related
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- Electromagnets (AREA)
Abstract
The utility model provides a micropower DC relay with power-down memory state, which comprises a relay fixing iron core and a relay movable iron core. A permanent magnet is connected with the loop of the relay iron core. The shape of the permanent magnet is matched with the relay fixing iron core. The permanent magnet contacts with the movable iron core. The patent of the utility model is characterized in that the maintenance current used for maintaining the operating state after the relay is operated is zero. For the working space where the contacts are operated in a long time, the energy-saving effect is particularly obvious by using the relay. The relay also has the capacity of memorizing the working state of the contact before the power-down after the power is cut off, for the working space having the special requirements, using the relay is simpler and more convenient.
Description
Technical field
The utility model relates to a kind of little power consumption direct current relay of the remember condition that cuts off the power supply, and belongs to electrical apparatus technology and products thereof.
Background technology
Present relay is that the magnetic field force action that produces during by electric current in the coil that utilizes on iron core makes the contact make and break.For the make and break of holding contact, will be connected with in the coil always and keep electric current.This mode will cause the loss of electric energy, and especially in battery-powered device, electric current is kept in long-term contact adhesive can make battery-powered time shorten dramatically, and has improved maintenance cost.
Summary of the invention
In order to overcome the deficiency of existing relay, the utility model provides a kind of little power consumption direct current relay of the remember condition that cuts off the power supply.
The technical solution of the utility model is: a kind of little power consumption direct current relay of the remember condition that cuts off the power supply, relay secured core, movable core are arranged, and there is permanent magnet to connect in the relay iron core loop.
The characteristics of the utility model patent are that to be used to keep the electric current of keeping of attracting state after the relay adhesive be zero, for the workplace of those long-term adhesives in contact, use this relay energy-saving effect obvious especially.This relay also has the ability of outage back memory outage front contact operating state, and this uses this relay more simple and convenient for the workplace that this specific (special) requirements is arranged.
Description of drawings
Fig. 1 is the theory structure schematic diagram of this relay;
Below in conjunction with drawings and Examples the utility model operation principle is described further.
Embodiment
Embodiment 1:
In existing relay iron core loop, install a permanent magnet (10) additional on the suitable position, keep the make and break of contact by the suction-combining force of permanent magnet (10).
As shown in Figure 1, existing in the drawings relay construction is: coil (1); Secured core (2); Movable core (3); Moving contact (4); Fixed contact (5); Rotating shaft (6); Spring (7); Backstop (8); Air gap (9).The utility model is just clipped one section with secured core (2) on original relay basis, become permanent magnet (10), and the shape of permanent magnet (10) and relay secured core (2) are complementary.
State 1: be subjected to the control of spring (7) active force, movable core (3) is parked on the qualification position of backstop (8).Moving contact (4) does not contact with fixed contact (5), and the contact disconnects.
State 2: when passing to the electric current I that flows as the direction of arrow in the coil (1), flux circuit is secured core (2), rotating shaft (6), movable core (3), air-gap (9), permanent magnet (10).The magnetic force acting in conjunction of electromagnetic force and permanent magnet (10) makes movable core (3) to permanent magnet (10) direction motion, movable core (3) is contacted with permanent magnet (10) and is pulled together; Driving moving contact (4) motion simultaneously, making moving contact (4) contact the closing of contact with fixed contact (5).After electric current I in the coil (1) disconnects, because the effect of permanent magnet (10) magnetic force still is pulled together movable core (3) and permanent magnet (10) reliably.
State 3: under the situation of state 2, when the electric current I that passes in the coil (1) with direction of arrow counter current, the electromagnetic field that coil (1) produces plays negative function to the magnetic field of permanent magnet (10), at this moment, the magnetic force that movable core (3) is subjected to weakens, under the active force of spring (7), movable core (3) moves to backstop (8) direction, last movable core (3) is parked on the qualification position of backstop (8), and moving contact (4) does not contact with fixed contact (5) simultaneously, and the contact disconnects.After electric current I in the coil (1) disconnected, movable core (3) still was parked on the qualification position of backstop (8).
Embodiment 2: electric current I logical in the coil (1) is just in order to change the position of movable core (3), so electric current I is a current value in short-term.After the change in location of movable core (3), the I that breaks can not change the position of movable core (3), just can not change the on off operating mode of contact.So the characteristics of this relay are the operating states before little power consumption and the memory outage of outage back.
The length of the magnetic field intensity of the active force of the number of turn of regulating winding (1), spring (7), permanent magnet (10) and air gap (9) just can be produced the relay under the different electric pressures.
Claims (3)
1. little power consumption direct current relay of the remember condition that cuts off the power supply has relay secured core, movable core, it is characterized in that having in the relay iron core loop permanent magnet to connect.
2. little power consumption direct current relay of a kind of remember condition that cuts off the power supply according to claim 1 is characterized in that: the shape of permanent magnet and relay secured core are complementary.
3. little power consumption direct current relay of a kind of remember condition that cuts off the power supply according to claim 1 and 2 is characterized in that: permanent magnet contact movable core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497591U CN201048111Y (en) | 2007-06-21 | 2007-06-21 | DC micro-power consumption relay of power-off memory state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497591U CN201048111Y (en) | 2007-06-21 | 2007-06-21 | DC micro-power consumption relay of power-off memory state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048111Y true CN201048111Y (en) | 2008-04-16 |
Family
ID=39300703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201497591U Expired - Fee Related CN201048111Y (en) | 2007-06-21 | 2007-06-21 | DC micro-power consumption relay of power-off memory state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048111Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371691B (en) * | 2008-06-13 | 2011-02-09 | 广东洛贝电子科技有限公司 | Soybean milk machine with circuit-breaking memory circuit |
-
2007
- 2007-06-21 CN CNU2007201497591U patent/CN201048111Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371691B (en) * | 2008-06-13 | 2011-02-09 | 广东洛贝电子科技有限公司 | Soybean milk machine with circuit-breaking memory circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20110621 |