JP2020009571A - Movable terminal piece structure and relay with the same - Google Patents

Abstract

To provide a movable terminal piece structure and a relay comprising the same.SOLUTION: A movable terminal piece structure 1 forms a closing and opening state to a fixed contact point 20, and comprises a rigid terminal piece contact part 10, a soft terminal bent part 11, a soft terminal piece action part 12, and a movable contact point 13. The soft terminal bent part 11 is communicated to the rigid terminal piece contact part 10, and forms a first deformation gap 111 between the rigid terminal piece contact part 10, and provides the rigid terminal piece contact part 10 so as to be harder than the soft terminal bent part 11. The soft terminal piece action part 12 is provided to the soft terminal bent part 11, the movable contact point 13 is provided to the rigid terminal piece contact part 10. From them, when the soft terminal piece part 12 is driven in the closing state with the movable contact point 13 and the fixed contact point 20 by an acting force, the soft terminal bent part 11 can be deformed to the rigid terminal piece contact part 10 to eliminate an arc.SELECTED DRAWING: Figure 2

Description

  The present invention relates to the technical field of relays, and more particularly to a movable terminal strip structure capable of extinguishing an arc and having excellent conductive connection properties, and a relay including the same.

  Electronic devices support human life. Among them, the most widely applied electronic components are relays that conduct or close an electric circuit system that carries a small current to control another electric circuit system. After the small current circuit is conducted to the electromagnetic relay, an electromagnetic effect is generated by the electromagnetic device, and the movable connector of the relay is brought into contact to conduct another controlled electric circuit system connected to the connector device. The same applies to the opposite case.

  However, when the electrical circuit system controlled by the relay is turned on, an arc is generated at the moment when the connector devices come into contact with each other and are turned on, or when the connector device is closed, due to different current carrying directions. The repulsive force prevents the connector devices from contacting, causing arcing and damage, or destroying the entire electrical circuit system. Further, when a high current is carried in the controlled electrical circuit, the arc energy is further increased, which may cause more serious damage.

  Therefore, various improvements have been proposed. In one example, a permanent magnet is mounted beside two connectors to mitigate the arc, but the connector device is interfered by the magnetic field of the permanent magnet when conducting the electrical circuit system. Since the current relay has not yet been able to counteract this arc phenomenon, its use efficiency is reduced and its use effect is limited. In this regard, the team of the present inventors has studied diligently and has invented the movable terminal piece structure of the present invention and a relay having the same, based on many years of accumulated experience in the industry, An object of the present invention is to improve the disadvantages of the above-described known technology.

  In view of the above-mentioned problems, an object of the present invention is to provide a movable terminal piece structure and a relay provided with the same, thereby suppressing generation of an arc, improving a relay use effect, and extending a service life.

  To achieve the above object, the present invention provides a movable terminal strip structure applicable to a relay. The movable terminal piece structure can perform an open and closed operation state with respect to the fixed contact, and includes a rigid terminal piece contact part, a soft terminal bent part, a soft terminal piece action part, and a movable contact. The flexible terminal bent portion and the rigid terminal piece contact portion are connected to each other, and a first deformation gap is formed between the flexible terminal bent portion and the rigid terminal piece contact portion. It is provided hard. Further, the flexible terminal piece operating portion is located at the flexible terminal bending portion, and the movable contact is provided at the rigid terminal piece contact portion. Among these, when the flexible terminal piece operating portion drives the movable contact and the fixed contact in the closed state by the acting force, the flexible terminal bent portion is deformed with respect to the rigid terminal piece contact portion. As a result, the bent portion of the soft terminal can withstand most of the deformation, stabilize the movable contact, cancel out the arc, improve the use effect of the relay, and extend the life.

  In addition, the rigid terminal piece contact portion is provided with the plate body superimposed on the part of the flexible terminal bent portion, and the plate body is provided harder than the flexible terminal bent portion, thereby stabilizing the movable contact.

  In addition, the movable terminal piece structure further includes a second deformation gap. It is located at the contact portion of the rigid terminal piece and is installed in the vicinity of the installation of the movable contact, so that the deformation space of the movable terminal piece structure can be increased.

  Further, in order to greatly increase the deformation space of the movable terminal piece structure, the second deformation gap forms an arch shape and communicates with the first deformation gap to surround the movable contact.

  In another embodiment, the second deformation gap forms an arch shape and surrounds the movable contact without communicating with the first deformation gap, thereby increasing the deformation space of the rigid terminal piece contact portion.

  Further, the movable terminal piece structure further includes a connecting portion connected to the flexible terminal bent portion, and the connecting portion is provided so as to be softer than the rigid terminal piece contact portion and to form an L-shape. As a result, the acting force on the movable terminal piece structure is reduced, and the deformation space is increased.

  The present invention secondly provides a relay having at least one movable terminal strip structure. The relay includes a base, at least one electromagnetic structure, and at least one push member. The base is provided for mounting the movable terminal piece structure and at least one fixed contact, and the electromagnetic structure is provided on the base corresponding to the movable terminal piece structure. One end of the pushing member is connected to the flexible terminal piece operating portion. As a result, the electromagnetic structure utilizes the electromagnetic effect of energization, the movable contact and the fixed contact form open and closed states by magnetic attraction, and the arc extinction utilizing the flexibility of the movable terminal piece structure. And improve the use effect of the relay and extend the service life.

  The relay further includes a fixed member provided on the base for connecting one end of the relay to the movable terminal piece structure. When the movable contact and the fixed contact are in a closed state, a reverse current is simultaneously generated when the movable terminal piece structure is turned on, and an electromagnetic force is generated which pushes the movable contact horizontally. This cancels out the electromagnetic resistance between the movable contact and the fixed contact, thereby improving the stability between the movable contact and the fixed contact.

Subsequently, when a plurality of movable terminal piece structures are provided, the base further includes at least one spacer. The spacer separates any two movable terminal piece structures provided adjacent to each other, and suppresses an arc generated between the adjacent movable terminal piece structures.
As described above, the movable terminal piece structure disclosed in the present invention and the relay to which the movable terminal piece structure is applied utilize the flexibility and rigidity of the movable terminal piece structure and partially deform to stabilize the movable contact. Extinction. Further, the stability of the contact device is enhanced by the movable terminal piece structure, and the arc is extinguished, thereby avoiding damage to the contact device, improving the use effect of the relay, and extending the life.

FIG. 3 is a three-dimensional structural view of a relay according to a preferred embodiment of the present invention. FIG. 3 is a three-dimensional structural view of a movable terminal piece structure according to a preferred embodiment of the present invention. FIG. 4 is a diagram illustrating a use mode according to a preferred embodiment of the present invention (part 1). FIG. 4 is a diagram illustrating a use mode according to a preferred embodiment of the present invention (part 2). FIG. 7 is a diagram illustrating a use mode according to a preferred embodiment of the present invention (part 3).

  Embodiments of the present invention will be described below with reference to the drawings so that examiners can better understand the contents of the present invention.

  Referring to FIGS. 1, 2, and 3A to 3C, a three-dimensional structure diagram of a relay according to a preferred embodiment of the present invention, a three-dimensional structure diagram of a movable terminal piece structure, and a usage pattern diagram will be referred to. The present invention discloses a movable terminal piece structure 1 capable of canceling an arc to improve the use effect of the relay 2 and extending the life thereof, and a relay 2 including the same. The relay 2 of the present invention includes at least one movable terminal piece structure 1, one base 21, at least one electromagnetic structure 22, and one pushing member 23. The movable terminal strip structure 1 applied to the relay that opens and closes the fixed contact 20 includes a rigid terminal strip contact section 10, a soft terminal bending section 11, a flexible terminal strip action section 12, and a movable contact section 13. And The flexible terminal bent portion 11 and the rigid terminal piece contact portion 10 are connected to each other, and a first deformation gap 111 is formed between the flexible terminal bent portion 11 and the rigid terminal piece contact portion 10. It is provided harder than the bent portion 11. Further, the flexible terminal strip operating section 12 is located at the flexible terminal bending section 11, and the movable contact 13 is provided at the rigid terminal strip contact section 10. The movable contact 13 and the fixed contact 20 are collectively referred to as a contact device. When the soft terminal strip acting portion 12 is driven by the acting force to close the contact device, the soft terminal bent portion 11 is deformed with respect to the rigid terminal strip contact portion 10. Therefore, if the flexibility and partial deformation characteristics of the movable terminal piece structure 1 are utilized, generation of an arc is suppressed, the main body of the relay 2 and the electric circuit system electrically connected are protected, and the use effect is improved. Life can be extended.

  With continued reference to FIG. A base 21 is provided for mounting the movable terminal strip structure 1 and at least one fixed contact, and an electromagnetic structure 22 is provided corresponding to the movable terminal strip structure 1. Further, one end of the push-in member 23 is connected to the soft terminal strip operating portion 12.

  In addition, the electromagnetic structure 22 further includes a driving member 221. When one end of the driving member 221 is connected to one end of the pushing member 23 and the relay 2 conducts the electrically connected electric circuit system, an electromagnetic effect is formed by the electromagnetic structure 22, and the driving member 221 is driven. Then, the pushing member 23 is driven to apply a force to the soft terminal strip acting portion 12 connected to one end of the pushing member 23.

  Subsequently, the pushing member 23 acts on the soft terminal piece acting portion 12 to cause the movable terminal piece structure 1 to bend, and the movable contact 13 is pushed into the fixed contact 20 to come into contact with the movable contact piece 13 to form the closed state shown in FIG. 3A. Thereby, the electric circuit system electrically connected to the relay 2 is conducted.

  Continuing with the above description, when a force is applied to the flexible terminal piece acting portion 12, the flexible terminal bent portion 11 is made softer than the rigid terminal piece contact portion 10, so that deformation due to external force is concentrated on the soft terminal bent portion 11. However, the first deformed gap 111 does not interfere with the deformed spaces between the flexible terminal bent portion 11 and the rigid terminal piece contact portion 10. In other words, the first deformation gap 111 allows the deformation of the flexible terminal bent portion 11, while the original state is maintained by the rigid terminal piece contact portion 10, whereby the contact device is stably joined. Let it. Furthermore, from the above description, the movable terminal piece structure 1 itself has flexibility, and when the contact device is driven by an acting force and the contact device is in a connected state, a force acts on the movable terminal piece structure 1 to cause deformation. This generates an elastic force that causes the contact device to be more stable. Thereby, the flexibility of the movable terminal piece structure 1 and the rigidity of the rigid terminal piece contact section 10 are matched to minimize deformation of the rigid terminal piece contact section 10, and the movable contact 13 is moved to the fixed contact 20. The closed state can be formed by stable contact, and the arc can be extinguished.

  In addition, the movable terminal piece structure 1 further includes a second deformation gap 102. The second deformation gap 102 is located at the rigid terminal piece contact portion 10 and is installed near the movable contact installation 13. In particular, at the moment when the contact device is opened or closed, a deformation space is provided in the rigid terminal piece contact portion 10 by the second deformation gap 102 to prepare for the deformation of the movable contact 13. More specifically, most of the deformation is caused by the bent portion 11 of the flexible terminal, and the deformation of the movable contact 13 at a nearby location is provided by the deformation of the rigid terminal piece contact portion 10 in the second deformation gap 102. And the fixed contact 20 can be prevented from becoming unstable or displaced in the open / closed state. In this way, the movable contact 13 can be extinguished in a more stable state.

  Further, in the present embodiment, the second deformed gap 102 has an arch shape and communicates with the first deformed gap 111 to surround the movable contact 13. In particular, when the movable contact 13 is embodied as a circular shape as in the present embodiment, the rigid terminal piece contact portion 10 elastically provides a deformation space, and instability due to deformation of the movable contact 13 can be avoided.

  More specifically, the electric circuit system electrically connected to the relay 2 is applied to a high-current or high-voltage electric circuit, and when in a conductive state, a larger electromagnetic effect is generated from the electromagnetic structure 22 and the acting force on the contact point is reduced. And the movable terminal piece structure 1 is severely deformed or displaced. Therefore, as shown in FIG. 3B, the first deformed gap 111 and the second deformed gap 102 are communicated with each other, and the deformed portion of the rigid terminal piece contact portion 10 is held by the soft terminal bent portion 11 so that the soft terminal is bent. The deformation space of the bent portion 11 is further increased. Thereby, the relay 2 can be downsized, and can be applied to a high current or high voltage system. Abnormal discharge that occurs at the moment when the contact device is opened or closed can be avoided, and the electric circuit system electrically connected to the contact device can be protected. Alternatively, as in another embodiment, the second deformed gap 102 forms an arch shape, but the first deformed gap 111 may be surrounded without communicating with the movable contact 13. By the same reason, the second deformation gap 102 allows the rigid terminal piece contact portion 10 to elastically form a deformation space, so that when the fixed contact 20 is brought into contact with or separated from the fixed contact 20, it can be made more stable and reliable.

  When the electric circuit system electrically connected to the relay 2 is disconnected, if the electromagnetic effect is interrupted by the electromagnetic structure 22, the driving member 221 is not electromagnetically attracted, and the pushing member 23 is driven by another elastic return force. As shown in FIG. 3C, the flexible terminal strip acting portion 12 is pulled by the push member 23, and drives the entire movable terminal strip structure 1 to open the contact device and simultaneously disconnect the electric circuit system. . Similarly, when the movable terminal piece structure 1 is driven, the first deformation gap 111 and the second deformation gap 102 are responsible for deformation during operation, and the movable contact 13 is protected.

  In addition, the rigid terminal piece contact part 10 is obtained by folding the plate body 101 on a part of the flexible terminal bent part 11, that is, the rigid terminal piece contact part 10 is formed by attaching the plate body 101 to a part of the soft terminal bent part. It is laid. Thereby, the convenience of the manufacturing process can be improved by avoiding the connection of two different members. Furthermore, the movable contact 13 operates stably and reliably by designing the plate body 101 to be harder than the flexible terminal bent portion 11 and suppressing deformation when the rigid terminal piece contact portion 10 receives an acting force. In particular, when the relay 2 is applied to a high-current or high-voltage electric circuit system and is in a conductive state, the stability of the contact device is improved.

  Further, the movable terminal piece structure 1 further includes a connecting portion 14. The connecting portion 14 is provided continuously with the flexible terminal bent portion, and the connecting portion 14 is preferably softer than the rigid terminal piece contact portion 10 and forms an L-shape. In addition, the other end of the connecting portion 14 is connected to the fixed member 212 and connected to the base 21, and the movable terminal piece structure 1 is attached to the base 21. As a result, when the soft terminal bending portion 11 receives an acting force, the connecting portion 14 moves or deforms in conjunction therewith, so that the acting force on the soft terminal bending portion 11 is reduced, and the deformation space can be increased.

  In addition, the relay 2 further includes a fixing member 212. The fixed member 212 is provided on the base 21, and one end thereof is connected to the movable terminal piece structure 1 and communicates with the movable terminal piece structure 1. The fixed member 212 forms a U-shape with the movable terminal piece structure 1. Thereby, when the contact device of the relay 2 is in the closed state, a repulsive force is generated between the fixed member 212 and the movable terminal piece structure 1 by the reverse current of the fixed member 212 and the movable terminal piece structure 1, and the movable member is moved. An electromagnetic force for pushing the contact 13 horizontally is formed, thereby canceling the electromagnetic resistance between the contact devices. Thereby, the contact device has stability in the closed state, and it is possible to avoid occurrence of an arc when the contact device is repelled and separated.

  More specifically, in the present embodiment, when a plurality of movable terminal piece structures 1 are provided, the base 21 further includes at least one spacer 211, and partitions any two movable terminal piece structures 1 provided adjacent to each other. The spacer 211 can prevent an arc between the contact devices adjacent to each other, and also can reduce the distance between the movable terminal piece structures 1 and reduce the size of the relay 2.

  In summary, the movable terminal piece structure 1 of the present invention and the relay 2 to which the present invention is applied extinguish the arc of the relay 2 with the movable terminal piece structure 1. Among these, the movable contact 13 stably forms the open or closed state of the fixed contact 20, and the fixed member 212 further stabilizes the closed state of the fixed contact device. Further, using the first deformation gap 111 and the second deformation gap 102, the flexible terminal bending portion 11 elastically provides a deformation space. In particular, when the relay 2 is applied to a high-current or high-voltage electric circuit system, the movable contact 13 smoothly opens and closes with the fixed contact 13. Thus, by extinguishing the arc, damage to the contact device can be reduced, the use effect of the relay 2 can be improved, and the life can be extended.

DESCRIPTION OF SYMBOLS 1 Movable terminal piece structure 10 Rigid terminal piece contact part 101 Plate body 102 Second deformation gap 11 Flexible terminal bending part 111 First deformation gap 12 Flexible terminal piece action part 13 Movable contact 14 Connecting part 2 Relay 21 Base 211 Spacer 212 Fixed member 22 electromagnetic structure 221 drive member 23 pushing member

Claims (9)

A movable terminal piece structure applied to a relay that opens and closes a fixed contact,
A rigid terminal piece contact portion, a soft terminal bent portion, a soft terminal piece action portion, and a movable contact,
The flexible terminal bending portion and the rigid terminal piece contact portion are connected to each other, and a first deformation gap is formed between the flexible terminal bent portion and the rigid terminal piece contact portion. Provided harder than the terminal bend,
Providing the flexible terminal piece action portion at the flexible terminal bending portion,
The movable contact is provided at the rigid terminal piece contact portion,
When the flexible terminal piece acting portion is driven by an acting force and the movable contact and the fixed contact are operated in a closed state, the flexible terminal bent portion is deformed with respect to the rigid terminal piece contact portion. Characterized by a movable terminal strip structure applied to relays.   2. The movable terminal piece according to claim 1, wherein a plate body of the rigid terminal piece contact portion is folded on a part of the flexible terminal bent part, and the plate body is provided harder than the flexible terminal bent part. 3. Construction.   The movable terminal piece structure according to claim 2, further comprising a second deformation gap installed near the location where the rigid terminal piece contact portion and the movable contact are installed.   The movable terminal piece structure according to claim 3, wherein the second deformed gap is formed in an arch shape and communicates with the first deformed gap to surround the movable contact.   The movable terminal piece structure according to claim 3, wherein the second deformed gap is formed in an arch shape, and surrounds the movable contact without communicating with the first deformed gap.   The movable part according to claim 4, further comprising a connecting part connected to the flexible terminal bending part, wherein the connecting part is softer than the rigid terminal piece contact part and is formed so as to form an L shape. Terminal strip structure. A relay having at least one movable terminal piece structure including a rigid terminal piece contact portion, a soft terminal bent portion, a soft terminal piece action portion, and a movable contact, which form an open / closed state with respect to the fixed contact. And
A base, at least one electromagnetic structure, and at least one push member;
The flexible terminal bending portion and the rigid terminal piece contact portion are connected to each other, and a first deformation gap is formed between the flexible terminal bent portion and the rigid terminal piece contact portion. Provided harder than the terminal bend,
Providing the flexible terminal piece action portion at the flexible terminal bending portion,
The movable contact is provided at a rigid terminal piece contact portion,
When the flexible terminal piece acting portion is driven by an acting force, and the movable contact and the fixed contact are operated in a closed state, the flexible terminal bent portion causes deformation of the rigid terminal piece contact portion,
The base provides for installation of the movable terminal strip structure and includes at least one fixed contact;
Providing the at least one electromagnetic structure attached to the base so as to correspond to the movable terminal piece structure;
By connecting one end of the at least one electromagnetic structure to the flexible terminal bent portion, the movable contact and the fixed contact are opened and closed by magnetic attraction utilizing an electromagnetic effect of energization. And a relay.   It is provided on the base, one end is connected to the movable terminal piece structure, and when conducting with the movable terminal piece structure, a reverse current is caused to generate an electromagnetic force pushing horizontally into the movable contact, The relay according to claim 7, further comprising a fixed member capable of improving stability between the movable contact and the fixed contact.   9. The relay according to claim 8, wherein when a plurality of the movable terminal piece structures are provided, the base further includes at least one spacer, and partitions any two of the movable terminal piece structures provided adjacent to each other.

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