KR200200520Y1 - Structure of relay - Google Patents

Abstract

The present invention relates to a relay that is widely applied to automobiles and other industrial devices, and semi-permanently extends the life of the electromagnet coil to solve the operation error or control stability problem caused by coil burnout, while simplifying the overall relay structure to increase durability and operation. It is to provide highly reliable relay with high stability.

The relay of the present invention, the coil is wound on the outside, the outer periphery has a plurality of terminal grooves for guiding the terminal coupling, the guide grooves along the center and are arranged symmetrically in the corresponding position in both directions And a permanent magnet 35 having a guide groove in the same line as the guide groove in the electromagnet and having a contact on the outside and moving linearly between the electromagnet arrangement spaces, and the guide groove of the permanent magnet. Guide the slide movement of the permanent magnet and the both ends of the guide pin (37) fixed to the guide groove of the electromagnet, combined with the electromagnet and the permanent magnet in one space to provide a moving space of the permanent magnet and at the same time the input and output terminal coupling There are several terminal grooves for guiding, and the inner housing 39 which is blocked on one side and is drilled on the other side, and the inner housing which is open. It is characterized by consisting of a cap that blocks the portion and the outer casing to cover the outside of the inner housing.

Description

Relay structure

The present invention relates to a relay that is widely applied to automobiles and other industrial devices. More specifically, the life span of an electromagnet coil is semi-permanently extended, thereby simplifying the entire relay structure while solving problems of operation error or control stability due to coil burnout. It is to provide a highly reliable relay with high durability and high operation stability.

A relay is a device that operates when an input reaches a value and opens and closes other circuits. A relay with a contact or a contactless relay with no contact and a pressure, on And optical relays.

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, and 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, when the power supply flowing through the coil 4 is cut off, the magnetic force of the core 5 disappears, The iron plate for connection is separated from the core 5 by the restoring force of the leaf spring 8, and at this time, the power is cut off again.

In addition, various relay technologies are known. For example, as a technology for improving the power saving form, size reduction, or reliability of operation, the power saving relay of the Korean Utility Model Publication No. 93-22353 uses a gear-shaped multi-contact with a conductor and an insulator sequentially protruding. 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 disorders 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 soon makes relays difficult to operate and Appears. Similarly, continuous heating of the coil part gradually burns out the coil over time and results in short or disconnection at some time. Thus, the heating of the coil part of the relay is relatively unnecessary while maintaining the power failure. There is a problem of consuming.

In addition, there is a problem that the reliability of terminal connection is inferior due to the high possibility of contact change or gap variation between contact terminals under conditions exposed to vibration and shock.

On the other hand, the relay structure of the domestic patent application No. 2000-6392 of the prior application, as shown in Figs. 2 and 3, the electromotive force is generated by applying power to the coil, and the core is made of electromagnets to move the armature, and the position of the movable portion In the relay structure consisting of a contact portion for connecting and disconnecting power in accordance with the present invention, the movable part, the core 21 is wound around the coil 20, 20a by dropping at random intervals at opposite positions facing each other One core 21 selectively in accordance with the electromagnetic direction applied to the cores 21 and 21a, constituting a 21a and positioned between any gaps given by the bidirectional arrangement of the cores 21 and 21a. Or the permanent magnet 22 in contact with the other core 21a is installed, and the contact terminals 22a, 22b and 22c are interlocked with the permanent magnet 22 according to the moving direction of the permanent magnet 22. Contacted with An armature 23 having a ruler, the contact portion of which is selectively contacted according to the terminal position of the armature 23, and a fixed point contact connected to the wiring and the coil to connect or disconnect the output power and the power flowing to the coil, Selectively using main power and auxiliary power for the power applied to the coil For this purpose, the opener 24 is provided on the power input side to reduce the function and performance resulting from the coil heating, the power consumption, the malfunction caused by the gap variation, and the miniaturization of the relay.

This technology has been able to solve the problem of heat generation among various problems in the general relay structure, but there is a problem that the detailed integration of the various components is not presented.

Therefore, the object of the present invention is to realize the simplification of the relay structure by integrating the multi-parts in the predetermined space through the simplification of the components while solving the problem of the burnout of the coil or the limitation of application due to the overheating caused by the heat generation of the coil in the relay structure. It is to provide a relay structure that can improve the reliability of the operation.

A feature of the present invention for achieving this object is that the core is coiled and spaced apart at a predetermined distance in opposing positions facing each other, and the core is wound between one core and the core at a given interval according to the arrangement of the cores. Connecting or disconnecting the permanent part which is selectively contacted and the movable part which is connected with the permanent magnet in contact with the contact terminal, and the contact part which is selectively contacted according to the position of the terminal of the movable part side armature, and the output power and the power flowing to the coil In the relay structure consisting of a fixed contact and a movable contact connected to the wiring

The relay,

The coil is wound on the outside, the outer periphery has a plurality of terminal grooves for guiding the terminal coupling, the guide grooves along the center and are arranged symmetrically in a corresponding position in both directions,

A permanent magnet having a guide groove in the same line as the guide groove in the electromagnet and having a contact point on the outside to move in a linear direction between the electromagnet arrangement spaces;

It is coupled to the guide groove of the permanent magnet guides the slide movement of the permanent magnet and the both ends of the guide pin fixed to the guide groove of the electromagnet,

Coupled with the electromagnet and the permanent magnet in one space to provide a moving space of the permanent magnet at the same time there are several terminal grooves to guide the input and output terminal coupling, the inner housing is blocked on one side and the other,

And an outer casing covering the outside of the inner housing and a cap blocking the perforated portion of the inner housing.

1 is a view showing a general relay structure

2 is a view showing the interaction between the permanent magnet according to the conventional bidirectional core arrangement

3 is a view showing an arrangement state of a contact realization principle and a wiring relationship of a conventional heat-free relay

4 is a view showing the product appearance of the relay according to the present invention

5 is a view showing a relay operation principle according to the present invention

6 is a view showing an exploded state of an electromagnet and a permanent magnet according to the present invention

7 is a view showing the interior of the relay according to the present invention

8 is an assembly view of the main parts according to the present invention

Figure 9 is a side view showing the details of the inner housing according to the present invention

10 is a cross-sectional view of FIG.

(a) is A-A cross section

(b) B-B cross section

(c) is C-C cross section

(d) Section D-D

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

30,30a: Coil 31: Terminal groove

32: guide groove 33a, 33b: electromagnet

34: contact 35: permanent magnet

36: guide groove 37: guide pin

38: Terminal groove 39: Inner housing

40: Cap 41: Out casing

42: key 43: keyway

44: input terminal 45: output terminal

46: Rubber film

When the relay is configured by placing electromagnets and permanent magnets in the body, the components can be integrated by simplifying the components while eliminating heat generation of the coil part, and manufacturing the relay at low cost by reducing the manufacturing labor without increasing the design capacity. It becomes possible.

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

Figure 4 shows the product appearance of the relay according to the present invention, Figure 5 shows the relay operation principle according to the present invention, Figure 6 is the decomposition of the electromagnet and permanent magnet 7 is a representation of the interior of the relay according to the present invention, Figure 8 is an assembly view of the main components according to the present invention, Figure 9 shows the details of the inner housing according to the present invention.

The relay according to the embodiment of the present invention, the coil (30) (30a) is wound on the outside, the outer periphery has a plurality of terminal grooves 31 for guiding the terminal coupling, guide grooves 32 along the center ) And electromagnets 33a and 33b symmetrically disposed at corresponding positions in both directions, and guide grooves 32 in line with the guide grooves 32 in the electromagnets 33a and 33b. It is coupled to the permanent magnet 35 and the guide groove 36 of the permanent magnet 35 to move in a linear direction between the electromagnet arrangement space with a contact 34 on the outside to guide the slide movement of the permanent magnet 35 The both ends are combined with a guide pin 37 fixed to the guide grooves 32 of the electromagnets 33a and 33b, and the electromagnets 33a and 33b and the permanent magnets 35 in one space to form a permanent magnet ( There are several terminal grooves 38 for guiding the input / output terminal coupling while providing a moving space of 35). One side is formed by the inner housing 39, the cap 40 to block the opening of the inner housing 39, and the outer casing 39 to cover the outer casing (39) as a component to be.

The guide pins 37 are installed to cross the centers of the electromagnets 33a and 33b and the permanent magnets in a straight line, and prevent the rotation of the permanent magnets 35 that slide along the guide pins 37. In order to form a key 42 in the guide pin 37 and the permanent magnet 35 on the mating side was formed by forming a key groove 43.

The inner housing 39 has a terminal groove 38 in the longitudinal direction for fixing an input / output terminal. To form the, one end of the terminal groove 38 to form a perforated fixing groove for holding and fixing the input / output terminals 44, 45 fixed the input / output terminals 44, 45.

The through groove was machined in a part of the cap 40, and the rubber membrane 46 was attached to the through groove.

Figure 5 shows the relay operation principle according to the present invention.

When the electromagnet 33b is instantaneously energized for the operation of the device, it is in close contact with the opposing electromagnet 33a by the repulsive force by the same pole, and the electromagnet 33a is pulled by the permanent magnet 35 and the adsorption energy, and the output is maintained while maintaining it at a constant force. Control power.

The first permanent magnet 35 is attached to the electromagnet 33b in the N and S state, and when the electromagnet 33b is magnetized by the current, the permanent magnet 35 exhibits the same polarity (S / S or N / N). The permanent magnet 35 is pushed in the 'A' direction and the output terminal 45 is in contact with each other at the same time as the electromagnet (33a) to connect the power supply to energize the power supply 48 side current to the system device 47.

For this purpose, the input / output terminals 44 and 45 are disposed in the contactable area by the movement of the permanent magnet 35. Therefore, since the permanent magnet 35 serves as a variable contact, the presence or absence of the power supply 48 is controlled according to the position of the permanent magnet 35.

In this process, the permanent magnet 35 moves along the guide pin 37 in the direction of the electromagnet 33b. The dynamic characteristics of the permanent magnet 35 moving along the guide pin 37 exhibits linear and rotational propensity. Here, smooth linear motion contributes to correct contact realization, but rotational motion is a factor that deforms the position of the contact. On permanent magnet (35) When the key groove 43 is formed, and the key 42 is formed and coupled to the guide pin 37, only the linear motion can be induced while preventing rotation or flow of the permanent magnet 35. Therefore, the permanent magnet 35 is only linear movement along the guide pin 37 in the space given by the inner housing (39).

Suitable manufacturing method for making the relay of the present invention is as follows.

The inner housing 39 is emptied into a space, and the inner magnet 39 is disposed with the electromagnets 33a and 33b on which coils 30 and 30a are wound, and a permanent magnet 35 therebetween. Insert the guide pin 37 in order to install the movable portion so that the permanent magnet 35 can move in a linear direction along the guide pin 37. Thereafter, a cap 40 having a rubber film 46 is mounted at an open inlet of the inner housing 39 to block an open portion of the inner housing 39, and an input terminal along the outer surface of the inner housing 39 is formed. 44) and the output terminal 45 are installed, and the inner housing 39 having the input / output terminals 44 and 45 is inserted into a mold and insert-extruded to the outside to outcast the outer housing 39. 41) After the process of forming the out casing to process the inner air remaining in the inner housing (39) by inserting a syringe through the rubber film 46 of the cap 40 to vacuum the inside of the inner housing (39) To make.

When the relay is manufactured in this way, the internal vacuum state can be maintained, and thus the dynamic movement stability of the permanent magnet 35 along the guide pin 37 can be maintained, as well as the spark at the time of contact can be eliminated, so that the contact failure phenomenon does not appear. At the same time, since internal parts are covered with coatings, they are less deformed or damaged, parts can be protected, and required parts can be integrated in a fixed space.

Figure 4 is a perspective view of a relay product produced by the present invention. As shown in the figure, the movable parts or the electromagnets constituting the relay are out-cased into the housing, and only the input / output terminals 44 and 45 are exposed to the outside. Even in the case of relay installation, the installation is completed only by mounting the input / output terminals 44 and 45 to the installation target portion, thereby facilitating installation and management.

According to the present invention, the reliability of the relay can be improved by realizing the integration of the relay by densely arranging the multiple parts in a predetermined space by simplifying the relay parts while solving the problem of operation error or control stability due to coil burnout. All components are casinged to prevent damage or deformation of components, which ensures semi-permanent durability and improves maintenance and management efficiency by easy installation and removal of relays.

In addition, it has the effect of producing a low-cost relay by breaking away from the design limitations of the electromagnet and reducing the manufacturing labor.

Claims (4)

Permanent magnets and permanent magnets in selective contact with one core, positioned between given cores according to the arrangement of the cores, the coils are wound, floating and spaced apart at predetermined intervals in opposing positions. And a fixed contact and a movable contact which are made of an armature which is in contact with a contact terminal, and a contact which is selectively contacted according to the position of the terminal of the armature of the movable part, and connected to a wiring for connecting or disconnecting the power supplied to the output power and the coil. In the relay structure, The relay, The coil is wound on the outside, the outer periphery has a plurality of terminal grooves for guiding the terminal coupling, the guide grooves along the center and are arranged symmetrically in a corresponding position in both directions, A permanent magnet having a guide groove in the same line as the guide groove in the electromagnet and having a contact point on the outside to move in a linear direction between the electromagnet arrangement spaces; It is coupled to the guide groove of the permanent magnet guides the slide movement of the permanent magnet and the both ends of the guide pin fixed to the guide groove of the electromagnet, There are several terminal grooves to combine the electromagnet and the permanent magnet on one space to provide the moving space of the permanent magnet and to guide the input / output terminal coupling. The inner housing is blocked and the other is open, A relay structure comprising a cap that blocks the perforated portion of the inner housing and an out casing that covers the outside of the inner housing. The method of claim 1, The guide pin is installed in the form of crossing the center of the electromagnet and the permanent magnet in a straight line, in order to prevent the rotation of the permanent magnet is coupled along the guide pin to form a key on the guide pin and to form a key groove on the opposite permanent magnet Relay structure characterized. The method of claim 1, The inner housing has a longitudinal groove for fixing an input / output terminal, and a perforated fixing groove for supporting and fixing the input / output terminals is formed at one end of the groove to fix the input / output terminals. Relay structure. The method of claim 1, A through structure is formed in a part of the cap, and the relay structure characterized in that a rubber film is mounted in the through groove.