KR200189240Y1 - Struture of relay - Google Patents

Abstract

The present invention relates to a relay for reducing the number of windings of the coil wound around the core, while reducing the design capacity, while semi-permanently extending the life of the coil to solve the problem of operation error or control stability due to coil burnout.

The relay of the present invention is located between the cores 21a and 21b on which the coils are wound while being spaced apart and spaced apart at random intervals facing each other, and between any gaps given by the arrangement of the cores. An amateur 26 having a permanent magnet 23 selectively contacting one core in accordance with the electromagnetic direction applied to the cores, and a terminal in contact with the contact terminal in accordance with the movement direction of the permanent magnet in conjunction with the permanent magnet It is composed of a fixed contact point connected to the wiring and the coil, and the power applied to the coil 22a, 22b to selectively connect or disconnect the power supply to the output power and the coil is selectively contacted according to the position of the amateur terminal In order to selectively use 28 and the auxiliary power source 29, a switch 33 is provided on the power input side. This increases the control stability, power saving, and reliability of the relay.

Description

Relay structure

The present invention relates to a relay that is widely applied to automobiles and other industrial devices. More specifically, it reduces the number of windings of the coil wound around the electromagnet and lowers the design capacity, while operating the coil by semi-permanently extending the life of the electromagnet coil. The present invention relates to a relay for solving an error or control stability problem.

Relay is a device that operates when the input reaches a certain value and opens and closes other circuits, such as a relay with a contact or a contactless relay without a contact, and a pressure, temperature, and light relay.

In general, the relay 1 having a contact includes a housing 12 for fixing a bobbin and a plurality of contact terminals as shown in FIG. 1, and a yoke mounted to the housing 12 to support and couple the bobbin 2 to the housing 12. (3), the bobbin 2 fixed to the yoke 3 in a cylindrical state in which the coil 4 is wound, and the bobbin 2 mounted to the housing 1 and the yoke 3 so as to penetrate the bobbin 2 The core 5 magnetized according to the power supply applied to the coil 4 wound on the coil 2 and the hinge 6 by the magnetic force of the core 5 while being coupled to one side of the yoke 3. It consists of a moving amateur (7) and a leaf spring (8) for elastically controlling the movement of the amateur (7) in accordance with the magnetic force applied to the amateur (7) while connecting the amateur (7) to the yoke (3). One end of the core 5 is exposed to the outside to be in contact with the armature 7. The end of the leaf spring 8 has a contact point 10 that meets the contact terminal 9, and supplies power to the coil 4. There are terminals 11 to apply.

When the relay 1 applies current to the coil 4 wound on the bobbin 2, electromotive force is generated, so that the core 5 is magnetized to become an electromagnet. Accordingly, since the core 5 sucks the armature 7 positioned on one side, the armature 7 rotates about the hinge 6 while deforming the leaf spring 8 inward and rotates the leaf spring 8 to the leaf spring 8. The attached contact terminal 9 is brought into contact with the contact 10. In other words, when the power is supplied to the coil 4 wound on the bobbin 2, magnetic force is generated in the core 5, so as to be adsorbed with the connecting iron plate, so that the conducting plate spring 8 attached to the iron plate is disconnected from the contact. Connect one line to the left side and turn on the power. On the contrary, if the power flowing through the coil 4 is cut off, the magnetic force of the core 5 is lost, and the connecting iron plate is separated from the core 5 by the restoring force of the plate spring 8 for electricity supply.

In addition, various relay technologies are known. For example, as a technology for improving power saving form, miniaturization, and operation reliability, the power saving relay of the Korean Utility Model Publication No. 93-22353 uses a gear-shaped multi-contact in which conductors and insulators are sequentially projected. When the power is applied only once to the coil part, the multi-contact part in the form of a gear wheel rotates to maintain the on state in engagement with the contact terminal. This technology uses the power shortage or short circuit in the general relay structure in which the amateur contact terminal generates a magnetic force by continuously applying power to the coil terminal of the coil unit in order to keep it short with the contact terminal of the contact unit. It was able to improve the functional disorder such as disconnection, but it took many parts and rotated the reliability of the gear-type contact part. In addition, dispersing parts and structural changes are required to reduce the power loss and increase the life of the coil part, which acts as a contradictory factor for the compactness of the relay structure and the reliability of operation.

In addition, there are some known relay technologies, but there are some differences in the manner of operation of the amateur and the resulting inductive contact type.

Although the heat generation of the coil part in the relay is allowed to some extent, it is not suitable for the peripheral parts of the ultra-precision system, and it is likely to be overheated due to environmental factors and develop into overheating. Overheating makes it difficult for the relay to operate normally and results in an operating error. Likewise, continuous heating of the coil part gradually burns out the coil over time and results in short or disconnection at some time.However, the heating of the coil part in the relay can cause a malfunction and power consumption due to continuous energization. There is a problem.

Also, under conditions exposed to vibration and shock, there is a high possibility of change of contact or gap variation between contact terminals, which reduces the reliability of terminal connection.

Holding it.

Accordingly, an object of the present invention is to provide a relay structure for solving the problem of burnout or application limitation of the coil due to overheating caused by heat generation of the coil in the relay structure.

Another object of the present invention is to improve the reliability of a relay contact by changing the contact implementation method of the contact terminal in the relay structure, reducing the gap variation and solving the structural problem appearing at the contact point.

A feature of the present invention for achieving this object is to generate an electromotive force by applying a power to the coil and to make a core from the electromagnet to the movable part for moving the armature, and the contact portion for connecting and disconnecting the power according to the position of the movable part In the relay structure,

The movable part,

A core in which coils are wound while being spaced apart at random intervals at opposite positions facing each other,

Permanent magnets, optionally located in contact with one core according to the electromagnetic direction applied to the cores, located between any gaps given by the arrangement of the cores;

It is made of an amateur having a terminal in contact with the contact terminal in accordance with the movement direction of the permanent magnet is linked to the permanent magnet,

The contact portion,

A fixed point contact connected to a wire and a coil for selectively contacting and disconnecting the output power and the power flowing to the coil according to the position of the terminal of the amateur,

In order to selectively use the power applied to the coil to the main power and the auxiliary power, characterized in that it comprises a switch on the power input side.

1 is a view showing a general relay structure

2 is a view showing an interaction relationship appearing according to the polarity arrangement between the coil portion and the permanent magnet according to the present invention

(A) (b) of FIG. 3 shows the arrangement state of the embodiment and the wiring relationship according to the embodiment of the present invention and the contact change state according to the present invention.

(A) (b) of Figure 4 shows an example of the auxiliary power application method according to the present invention (a) is the energized state (b) is a disconnected state

5 is a view showing an application example of the present invention applied to the power plug

6 is a view showing another application example of the present invention used for general device control purposes

* Description of the symbols for the main parts of the drawings *

20: Relay 21a.21b: Core

22a.22b: coil 23: permanent magnet

24.24a: Contact terminal 25: Contact terminal

26: Amateur 27: Contact and contact terminal

28: main power source 29: auxiliary power source

33: switchgear

By changing the structure of the coil part and operating permanent magnets through the coil part to make selective contact with the contact terminals, power loss to the coil part can be reduced, thereby reducing the total heat generated from the coil part. It is possible to prevent the control abnormality caused by the gap change between the contacts and the operation error due to the contact change.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Figure 2 is a view showing the interaction relationship appearing according to the polarity arrangement between the coil portion and the permanent magnet according to the present invention, Figure 3 (a) (b) is a configuration of the contact implementation and wiring relationship specified in accordance with the present invention (A) is an energized state, (b) is a disconnection state, and FIG. 4 (a) (b) shows an example of an auxiliary power application method according to the present invention. (A) is the energized state (b) is a disconnected state, Figure 5 is an application example of the present invention applied to the power plug, Figure 6 is a view showing an application example of the present invention used for general device control purposes, Figure 3 to 6 illustrate various embodiments in which the main power supply and the auxiliary power supply are selectively applied according to the design capacity.

The main parts of the present invention are the cores 21a and 21b, which are floating and coiled at regular intervals in opposite positions while facing each other in an internal or relay housing of an apparatus having an arbitrary shape as shown in FIGS. 2 and 3. ) And one or the other core depending on the magnetic direction given to the cores 21a and 21b through the coils 22a and 22b while being located between the given intervals by the arrangement of these cores 21a and 21b. (22a) (22b) is in contact with the permanent magnet 23 and the permanent magnet 23 is selectively contacted with the contact terminals 24, 24a placed in both directions in accordance with the direction of movement of the permanent magnet (23) It consists of an amateur 26 having a contact terminal 25. And contact points 24, 24a and coils 22a and 22b connected to the wires and the coils to selectively connect or disconnect the input power and the power flowing to the coil by selectively contacting according to the terminal position of the armature 26. The switch 33 is provided on the power input side to selectively use the main power 28 and the auxiliary power 29 to be applied.

When the main power source 28 is used as the movable part power source as shown in FIG. 3, another output side contact terminal 27 is provided on the armature 26 having the contact terminal 25 to form a contact part.

An embodiment of the method using the auxiliary power source is shown in FIG. 4. Coil wound around core 21a and 21b by connecting button or remote control switch 33 on the device side operated with three contacts to auxiliary power source 29 for supplying current to cores 21a and 21b. The contact terminals 25 of the armature 26, which are operated by the permanent magnets 23, are arranged after disposing the contact terminals 24 and 24a for blocking or connecting one of the currents of either (22a) or (22b). By selectively contacting, such an auxiliary power application scheme controls the current flowing through the cores 21a and 21b by manipulating a button or a remote control switch 33 at a long distance, thereby artificially adjusting the position of the permanent magnet 23. This results in a function as a controller that controls the energization and interruption of the main power.

Relay operation according to an embodiment of the present invention is as follows. First, when the user energizes a current to operate a part of the system of the device, the permanent magnet 23 located in the center of each core 21a, 21b, as shown in Figs. The core 21b is changed to an electromagnet due to magnetization to generate a magnetic force. As a result, the permanent magnet 23 moves the armature 26 to the left side so that the input contact terminal 24 and the contact terminal 25 are connected and at the same time, the output contact. As the terminals and contact terminals 27 are connected, the devices in the desired system are operated. At this time, the power supply current to the coil (22b) wound on the core (21b) is the main power supply 28 or auxiliary power supply 29 installed for system operation. That is, when a control signal is given through the switch 33 to operate a part of the device system, the switch 33 serving as a switch connects the negative terminal and the positive terminal and the main power supply 28 is already connected. The core 21b is energized through the coil 22b while the contact terminal 24 and the contact terminal 25 are energized, and the middle permanent magnet 23 is pushed to the left by magnetic force.

At this time, the contact terminal 24 and the contact terminal 25, after the magnetic force is generated by instantaneous energization of the coil 22b, the terminal is moved to the left side, the current flowing through the coil 22b while the power is cut off to the coil 22b. Shut off and fever does not occur. In addition, the contact terminal 24a and the contact terminal 25 are connected to each other due to the left movement of the armature 26, but since the power is already cut off in the switch 33, the coil 21 is not energized. Without being generated, the output side contact terminal 27 and the contact terminal are connected to each other, and only the output side power is energized to drive the device.

Here, the switch 33 may be applied to a manual switch method or a control method by a microprocessor.

On the contrary, when the operation of the device system is stopped, when a control signal is inputted, the (-) terminal and the (+) terminal are connected through the switch 33 serving as a switch as shown in (b) of FIGS. 3 and 4. Connect it in reverse. At this time, the main power supply 28 energizes the core 21a while energizing the contact terminal 24a and the contact terminal 25 that are already connected, and pushes the middle permanent magnet 23 by the magnetic force. Through this action, the contact terminal 24a and the contact terminal 25 are separated from each other to cut off the power supply. In this case as well, since the terminals and the terminals are disconnected from each other in the coil 22a, no electricity is supplied to the coil 22a, and no heat is generated in the coil 22a wound on the core 21a. In addition, since the input side contact terminal 24 and the contact terminal 25 are connected to each other due to the right movement of the armature 26, the coil 22b wound on the right core 21b is also connected to the coil 22b because the power is disconnected from the switch 33. No heat is generated without energizing.

Therefore, the core 21a (21b) is in contact with the permanent magnet 23 while the cores 21a and 21b are operated in accordance with the power supply, with the center of the permanent magnet 23 irrespective of the power supply when applied to the device system. Irrespective of the direction of contact, the power flowing through the cores 21a and 21b is cut off immediately from the moment the cores 21a and 21b come into contact with the permanent magnet 23.

Interaction between the cores 21a and 21b with respect to the permanent magnet 23 in the process of energizing and interrupting the power is shown as a reaction with each other. In other words, when one of the cores 21a and 21b loses its magnetic force, it is reduced to iron as it is, and the permanent magnets 23 are in close contact with each other. On the contrary, the counterpart cores 21a and 21b are directed to the cores 21a and 21b reduced to iron. By pushing the permanent magnet 23, the interconnection force between the movable contacts through the armature 26 with the movable contact is maintained at a close connection force so as not to cause an error due to poor contact.

Here, the main power source 28 may be used as it is, as shown in FIG. 3, in which power is applied to the coils 22a and 22b to generate electromotive force to make the cores 21a and 21b into electromagnets. The movable auxiliary power source 29 can be selectively applied.

The method using the auxiliary power source 29 is a specific embodiment by performing a role of a relay by using a large power supply of a small power supply as shown in FIG. Coil 22a wound around core 21a and 21b by connecting a button or remote control switch 33 operating with three contacts to auxiliary power supply 29 for supplying current to coils 21a and 21b. By arranging a contact that cuts or connects the current of either side of 22b, the contact portion of the armature 26 actuated by the permanent magnet 23 can be selectively contacted. Can control the current flowing through the cores 21a and 21b by manipulating the button or remote control switch 33 at a long distance, thereby artificially changing the position of the permanent magnet 23, and as a result, It also functions as a controller for controlling energization and interruption.

5 shows an example in which the relay structure of the present invention is applied to the power plug 30, where the relay functions as a power controller. In this case, the current flowing through the coils 21a and 21b is controlled by opening and closing the switch, so that the permanent magnet 23 is first operated, and the contact point is realized through an amateur 26 interlocked with the permanent magnet 23. Power supply flowing to the device system side through the connector terminal 31 of) is possible.

6 is a case in which the relay of the present invention is installed in a general system device 32 in a built-in type, and similarly, the auxiliary magnet 29 is used to operate the permanent magnet 23 to realize a contact by moving the position of the arm 26. Or break it.

The armature 26 belonging to the movable part has a completely different characteristic from the existing contact type that is deformed and restored by using spring elasticity. That is, the spring restoring force is not required to repeatedly perform contact or dropping with the fixed contact terminals 24 and 24a set in association with the permanent magnet 23. This is an important function to reduce the fluctuation of the operating cycle due to the change of the gap between the core and the amateur which is shown in the spring-elastic dependent actuated relay.

The design capacities of the cores 21a and 21b having opposing arrangements and the coils 22a and 22b wound thereon to operate the permanent magnets 23 are such that they can move the permanent magnets 23. Suffice. This allows the permanent magnet 23 to be operated with less force compared to the general armature type of the spring-applied type, and as a result, it can be operated with only a low capacity coil under conditions that do not consider the capacity of the main power supply. Do. Therefore, when applied to the power control of precision parts, it enables delicate control while consuming low power.

When the auxiliary power supply 29 is used, it can be suitably applied as a power control use in a wide range of fields such as home appliances, home appliances, automobiles, and other industries as well as precision devices as well as large-capacity power control applications.

Meanwhile, as shown in FIGS. 3 to 6, the relay of the present invention sends a current to the coils 22a and 22b to operate the permanent magnets 23 to magnetize the cores 21a and 21b, but does not always apply power to the coils. Do not. Therefore, the coil heating phenomenon that occurs in the general relay that always powers the coil in order to magnetize the core by sending a current to the coil does not appear.

According to the present invention, it is possible to prevent the burnout of the coil due to overheating caused by the heat generation of the coil in the relay structure, thereby extending the life of the relay and reducing the power consumption flowing in the coil, so that an energy-saving relay can be configured. There is an effect that can be applied as a power control application in a wide range of fields such as equipment, industry and equipment.

In addition, it has the effect of reducing the faulty connection or fluctuation of the relay during operation and showing the high reliability operation in the environment with poor installation conditions.

Claims (3)

In the relay structure consisting of a movable part for moving the armature by applying an electric power to the coil to generate an electromotive force from the core, and a contact part for connecting and disconnecting the power according to the position of the movable part, The movable part, A core in which coils are wound while being spaced apart at random intervals at opposite positions facing each other, Permanent magnets, optionally located in contact with one core according to the electromagnetic direction applied to the cores, located between any gaps given by the arrangement of the cores; It is made of an amateur having a terminal in contact with the contact terminal in accordance with the movement direction of the permanent magnet is linked to the permanent magnet, The contact portion, A fixed point contact connected to a wire and a coil for selectively contacting and disconnecting the output power and the power flowing to the coil according to the position of the terminal of the amateur, Relay structure characterized in that it comprises a switch on the power input side for selectively using the power applied to the coil main power and auxiliary power. The method of claim 1, And the output side contact terminal is provided separately from the contact terminal. The method of claim 1, The switch is a relay structure, characterized in that for applying a button or a remote control switch.