KR20170008579A - Coil assembly for relay - Google Patents
Coil assembly for relay Download PDFInfo
- Publication number
- KR20170008579A KR20170008579A KR1020150099927A KR20150099927A KR20170008579A KR 20170008579 A KR20170008579 A KR 20170008579A KR 1020150099927 A KR1020150099927 A KR 1020150099927A KR 20150099927 A KR20150099927 A KR 20150099927A KR 20170008579 A KR20170008579 A KR 20170008579A
- Authority
- KR
- South Korea
- Prior art keywords
- coil
- bobbin
- relay
- coil assembly
- wire diameter
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
Description
The present invention relates to a relay, and more particularly, to a coil assembly of a relay capable of increasing the strength of a magnetic field and reducing operating voltage and operating current in a relay.
An example of the configuration of the relay related to the present invention can be found in the following Patent Document 1.
(Patent Document 1) KR10-1422394 B1
The present invention relates to a coil assembly for providing a magnetic driving force to a movable core in a relay, and a prior art structure of such a coil assembly will be described with reference to Fig.
1, the coil assembly is configured to include a
As the magnetic driving force exerted by the coil assembly, magnitude of the magnetic force and intensity of the magnetic field are generated as shown in the following Equation (1).
B? NI ------ (1)
In the above equation (1), B is the intensity of the magnetic field, n is the number of turns of the coil (number of turns) per unit length of the coil assembly, and I is the amount of current flowing through the coil.
That is, as can be seen from the above equation (1), the intensity of the magnetic driving force (intensity of the magnetic field) exerted by the coil assembly is proportional to the number of turns of the coil per unit length and the amount of current flowing therethrough.
If the amount of current is constant, the intensity of the magnetic field is proportional to the number of turns of the coil per unit length, that is, the number of turns.
In the coil assembly according to the related art as shown in FIG. 1, the
However, according to the conventional coil assembly, since the coil diameter of the
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a coil assembly of a relay capable of reducing the line resistance while increasing the number of turns of the coil and ultimately increasing the strength of the magnetic field will be.
It is an object of the present invention to provide a coil assembly for a relay,
Bobbin;
A first coil wound around the bobbin in a plurality of turns, the first coil having a first wire diameter; And
And a second coil having a second diameter smaller than the first diameter and wound on the bobbin in a plurality of turns.
According to a preferred aspect of the present invention, the second coil is wound around the bobbin so as to fill a gap between the first coils wound in pluralities.
A coil assembly of a relay according to the present invention includes a first coil wound around a plurality of windings and having a first wire diameter, a second coil having a second wire diameter smaller than the first wire diameter, 2 coils, it is possible to reduce the line resistance while not reducing the number of windings, thereby providing an effect of enhancing the size of the magnetic field.
Since the coil assembly of the relay according to the present invention is configured to wind the second coil so as to fill the gap between the first coils, it is possible to maintain the size of the wound coil so as to enhance the size of the magnetic field without increasing the size of the coil assembly Effect can be provided.
1 is a schematic diagram showing a configuration of a coil assembly of a relay according to the prior art,
2 is a schematic block diagram showing the configuration of a coil assembly of a relay according to a preferred embodiment of the present invention.
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
2, which is a schematic structural view showing a configuration of a coil assembly of a relay according to a preferred embodiment of the present invention.
A coil assembly of a relay according to a preferred embodiment of the present invention is configured to include a
The
Although not shown, the
A stationary core (not shown) of a relay fixedly provided in the hollow interior of the
The
With respect to the
Since the current flows in a circumferential shape around the
The
2, the
Thus, by winding the second coil to fill the gap between the first coils, the size of the wound coil can be kept unchanged compared to the prior art, so that the magnitude of the magnetic field can be increased without increasing the size of the coil assembly.
The operation of the coil assembly of the relay according to the preferred embodiment of the present invention configured as described above will be described.
When electric current is supplied to the conductor terminal in a state where the electric conductor terminals are connected to the
The formed magnetic field magnetizes a not-shown fixed core fixed inside the
This movement of the movable core acts to separate the movable contact connected to the movable core from the corresponding fixed contact, so that the power supply circuit between the power supply side and the load side is opened and the power supply can be cut off.
On the other hand, when the current is stopped flowing to the conductor terminal, current does not flow through the
Thus, as the suction force of the fixed core is extinguished, a return spring, not shown, applies an elastic force to return the movable core to a position away from the fixed core, so that the movable core moves to a position away from the fixed core.
This movement of the movable core acts to bring the movable contact connected to the movable core into contact with the corresponding fixed contact, so that the power supply circuit between the power source side and the load side is closed and power supply can be performed from the power source to the load side.
Since the coil assembly of the relay according to the present invention includes the
Since the coil assembly of the relay according to the present invention is configured to wind the
10: Bobbin 20: Coil
21: first coil 22: second coil
Claims (2)
Bobbin;
A first coil wound around the bobbin in a plurality of turns, the first coil having a first wire diameter; And
And a second coil having a second wire diameter smaller than the first wire diameter and wound on the bobbin in a plurality of turns.
And the second coil is wound between the first coils.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150099927A KR20170008579A (en) | 2015-07-14 | 2015-07-14 | Coil assembly for relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150099927A KR20170008579A (en) | 2015-07-14 | 2015-07-14 | Coil assembly for relay |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20170008579A true KR20170008579A (en) | 2017-01-24 |
Family
ID=57993208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150099927A KR20170008579A (en) | 2015-07-14 | 2015-07-14 | Coil assembly for relay |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20170008579A (en) |
-
2015
- 2015-07-14 KR KR1020150099927A patent/KR20170008579A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9595411B2 (en) | Electromagnetic relay | |
JP4392555B2 (en) | Single-coil solenoid with a permanent magnet and a permanent magnet, its manufacturing method, non-magnetic switch for single-coil solenoid, single-coil solenoid kit | |
JP5284882B2 (en) | Electromagnetic relay | |
US20130335177A1 (en) | Contact device | |
EP2230675A3 (en) | Coil component, transformer and switching power supply unit | |
JP2018037287A (en) | Electromagnetic relay | |
EP3001440A1 (en) | Direct current relay | |
US9514872B2 (en) | Electromagnetic actuator and method of use | |
JP2010073323A (en) | Electromagnetic relay | |
US8456268B2 (en) | Magnetic coil assembly | |
JP5738209B2 (en) | Electromagnetic relay | |
US20200286702A1 (en) | Contact module, contact device, electromagnetic relay module, and electrical device | |
EP3719827A1 (en) | Contact device, and electromagnetic relay | |
CN105023782A (en) | Electromagnetic relay | |
EP3301700A1 (en) | A medium voltage contactor | |
WO2017002350A1 (en) | Electromagnetic device, and electromagnetic relay using same | |
JP2016143623A (en) | Electromagnetic relay | |
KR20170008579A (en) | Coil assembly for relay | |
CN112470243A (en) | Relay with a movable contact | |
JP5414762B2 (en) | Vibration power generation unit, vibration power generation device, and vibration power generator | |
US11335490B2 (en) | Solenoid device | |
US20190019645A1 (en) | Relay device | |
JP6300681B2 (en) | Switchgear | |
DE102017004082A1 (en) | Actuator with magnetic return via coil made of iron wire | |
JP6104478B1 (en) | Operating device |