JP4988468B2 - Remote control relay - Google Patents

Description

  The present invention relates to a remote control relay.

Conventionally, a remote control relay provided with a polarized electromagnet device in which a plunger moves forward and backward by controlling energization to a coil in a case made of synthetic resin or the like, and opens and closes a fixed contact and a movable contact as the plunger moves forward and backward Is known (for example, Patent Document 1).
JP 2001-155614 A

  However, in this type of remote control relay, when the fixed contact and the movable contact are closed, the movable contact may vibrate and chattering may occur. This chattering can be accommodated to some extent by pressing the movable contact with a spring or the like, but there is a limit to the suppression of chattering by pressing the spring.

  Accordingly, an object of the present invention is to obtain a remote control relay capable of further suppressing chattering.

According to the first aspect of the present invention, the remote control relay includes a polarized electromagnet device in which the plunger advances and retreats by controlling energization to the coil in the case, and opens and closes the fixed contact and the movable contact as the plunger advances and retreats. In the state where the fixed contact and the movable contact are closed, the movable contact having the movable contact is disposed with a gap and includes a vibration restricting portion that restricts vibration of the movable contact, and the vibration restricting portion Is disposed opposite to the end of the movable contact opposite to the movable contact in the longitudinal direction, the end of the movable contact is bent toward the vibration restricting portion, and the fixed contact is The fixed contact and the movable contact having two pairs, and a partition that separates the two pairs, the vibration restricting portion is provided in the partition, and the partition includes the vibration restricting portion and the movable contact. Contact Thus resulting dust, characterized in that it comprises an inhibiting barrier portions from toward the contact portion side of the fixed contact and the movable contact.

According to the first aspect of the present invention, it is possible to suppress the chattering by suppressing the vibration of the movable contact in the state of being turned on by the vibration restricting portion.
In addition, vibration can be effectively suppressed at a portion having a large amplitude on the opposite side of the movable contact, and chattering can be suppressed.
In addition, the vibration restricting portion can be obtained as a relatively simple configuration by using a partition wall disposed at a position relatively close to the movable contact.
Furthermore, it is possible to suppress the occurrence of defects such as poor contact due to the interposition of the dust between the fixed contact and the movable contact by the barrier portion.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, each following embodiment is provided with the same component. Therefore, the same constituent elements are given common reference numerals, and redundant description is omitted.

  (First Embodiment) FIG. 1 is a side view showing an internal configuration of a remote control relay according to a first embodiment of the present invention.

  The remote control relay 1 includes a case 2 including a substantially bottomed rectangular tube-shaped body 3 made of insulating synthetic resin and a cover (not shown) that covers the opening surface of the body 3. FIG. 1 shows a state where the cover is removed and the inside is exposed.

  The body 3 is formed with four through holes 3b, and caulking pins (not shown) are inserted into the through holes provided corresponding to the respective through holes 3b and the cover from one surface side of the body 3 and the cover. The body 3 and the cover are integrated with each other by caulking the tip portion exposed on the other surface side.

  The body 3 includes a bottom wall portion 3a having a substantially rectangular plate shape and a side wall portion 3c that is suspended from the peripheral portion thereof, and is formed in a substantially bottomed rectangular tube shape. The side wall 3c is notched on one short side (left side in FIG. 1), and the main connection terminals 8 and 9 are exposed from the notch 3d.

  Further, a notch 3e is formed in the side wall 3c opposite to the side where the main connection terminals 8 and 9 are exposed, and the energizing terminal 11 of the electromagnet block 10 (polarized electromagnet apparatus) is exposed from the notch 3e. is doing. The side wall 3c is also formed with a notch 3f that exposes the manual operation portion 14a of the interlocking lever 14 that is swingably provided on the electromagnet block 10.

  In the case 2, various components such as the fixed contact 6 and the movable contact 7 are accommodated in addition to the electromagnet block 10.

  The electromagnet block 10 is swingably supported by a coil (not shown) energized through the energization terminal 11, a plunger 13 that moves forward and backward by controlling energization of the coil, and a main body of the electromagnet block 10. Interlocking lever 14. The interlocking lever 14 swings as the plunger 13 advances and retracts.

  The fixed contact 6 is fixed to the body 3, while the movable contact 7 is attached to the interlocking lever 14 and swings with the interlocking lever 14. The fixed contact 6 and the main connection terminal 8 for the fixed contact 6 are integrally formed by bending one metal conductor, while the movable contact 7 and the main contact terminal 7 for the movable contact 7 are formed integrally. The connection terminal 9 is connected via a flexible braided wire 15 made of a copper-based material.

  The movable contact 7 is urged by a spring 16 in a direction in which the contact pressure between the contacts 6a and 7a increases. This spring 16 is interposed between the interlocking lever 14 and the movable contact 7, and presses the opposite side of the contact 7 a against the support point M of the movable contact 7 by the interlocking lever 14.

  In such a configuration, the fixed contact 6a of the fixed contact 6 and the movable contact 7a of the movable contact 7 are in contact with each other at the position where the plunger 13 protrudes from the main body of the electromagnet block 10 as shown in FIG. In a position (not shown) where the circuit between the main connection terminals 8 and 9 is closed and the plunger 13 is drawn inside the main body of the electromagnet block 10, the fixed contact 6a of the fixed contact 6 and the movable contact 7a of the movable contact 7 are provided. Are separated from each other so that the circuit is opened. In the present embodiment, a coil spring 16 is provided as an urging means for urging the movable contact 7 toward the fixed contact 6, and the contact pressure in a state where the contacts 6a and 7a are in contact with each other is increased. is there.

  Further, the interlock lever 14 is provided with a manual operation portion 14a exposed outside the case 2, and the interlock lever 14 is moved by the operation of the manual operation portion 14a, so that the opening / closing of the circuit can be manually switched. ing.

  In the present embodiment, two pairs (two poles) of the fixed contact 6 and the movable contact 7 are provided, and these two pairs are positioned between the bottom wall portion 3a of the body 3 and the cover. Are separated by a partition wall 17 substantially parallel to the wall. These two pairs are arranged so as to be substantially plane-symmetric with respect to the partition wall 17, and the pair (the bottom wall portion 3 a side) of the fixed contact 6 and the main contact terminals 8 and 9 are fixed to the body 3. In addition, another pair (cover side) of the stationary contact 6 and the main contact terminals 8 and 9 are fixed to the partition wall 17. In FIG. 1, the pair on the bottom wall 3 a side fixed to the body 3 is hidden by the partition wall 17, and only the pair on the cover side fixed to the partition wall 17 is shown. Correspondingly, the interlocking lever 14 holds two movable contacts 7 arranged symmetrically with each other (in FIG. 1, only a pair on the cover side is shown).

  Here, the operation of the remote control relay 1 will be described. First, when the coil in the electromagnet block 10 is energized through the energizing terminal 11 in the direction in which the plunger 13 protrudes, the interlock lever 14 rotates with the protrusion of the plunger 13. The movable contact 7a of the movable contact 7 comes into contact with the fixed contact 6a of the fixed contact 6, and the circuit between the main connection terminals 8 and 9 is closed. The state in which the contacts 6a and 7a are in contact with each other is maintained even when the energization of the coil is stopped.

  Next, when the coil is energized in the direction in which the plunger 13 is pulled, the interlock lever 14 is rotated as the plunger 13 is retracted, and the movable contact 7 a of the movable contact 7 is separated from the fixed contact 6 a of the fixed contact 6. Thus, the circuit between the main connection terminals 8 and 9 is opened.

  Here, in this embodiment, when the fixed contact 6a and the movable contact 7a are closed, that is, when it is turned on, the vibration restricting portion 12 that restricts the vibration of the movable contact 7 is provided. The vibration restricting portion 12 is arranged with a small gap at the end 7b of the movable contact 7 opposite to the movable contact 7a in the longitudinal direction with the fixed contact 6a and the movable contact 7a closed. In this embodiment, the partition wall 17 is provided as a protruding wall.

  Therefore, according to the present embodiment, when the vibration restricting portion 12 comes into contact with the movable contact 7 that vibrates when the contacts 6a and 7a are closed, the vibration of the movable contact 7 is suppressed and chattering is suppressed. Can do.

  In addition, it cannot be overemphasized that the vibration control part 12 is provided so that it may not interfere with these movement traces so that operation | movement of the movable contactor 7 or the interlocking lever 14 may not be prevented.

  In addition, according to the present embodiment, the vibration restricting portion 12 comes into contact with the end portion 7b on the opposite side in the longitudinal direction with respect to the movable contact 7a of the movable contact 7, so that the vibration is restricted. While suppressing the influence on the contact state between each other as much as possible, the vibration can be effectively suppressed and chattering can be suppressed by the end portion 7b having a large amplitude.

  Furthermore, according to the present embodiment, since the vibration restricting portion 12 is provided in the partition wall 17 disposed at a position relatively close to the movable contact 7, the configuration including the vibration restricting portion 12 is embodied as a relatively simple configuration. be able to.

  In addition, in the present embodiment, a barrier portion 18 is provided as a protruding wall that protrudes toward the movable contact 7 on the portion of the partition wall 17 on the contact 6a, 7a side with respect to the vibration regulating portion 12. For this reason, even when dust is generated due to the contact between the end 7b of the movable contact 7 and the vibration restricting portion 12, the barrier 18 prevents the dust from reaching the contact points 6a and 7a. It is possible to suppress the occurrence of poor contact due to the presence of dust between the contacts 6a and 7a.

  (Second Embodiment) FIG. 2 is a side view showing a part of the internal configuration of a remote control relay according to a second embodiment of the present invention.

  In the remote control relay 1A according to the present embodiment, with the contacts 6a and 7a closed, the end 7b of the movable contact 7A opposite to the movable contact 7a in the longitudinal direction is minutely formed on the side surface 17b of the partition wall 17A. It extends to the opposite position with a small gap. In this case, the partition wall 17A (the side surface 17b) serves as the vibration restricting portion 12A.

  Also with this configuration, the vibration restricting portion 12A comes into contact with the movable contact 7 that vibrates when the contacts 6a and 7a are closed, so that the vibration is suppressed and chattering can be suppressed.

  (Third Embodiment) FIG. 3 is a side view showing the internal configuration of a remote control relay according to a third embodiment of the present invention.

  In the remote control relay 1B according to the present embodiment, the vibration restricting portion 12B is provided in the interlocking lever 14B. That is, the vibration restricting portion 12B is provided as a protruding wall at a position where the interlocking lever 14B faces the end portion 7b of the movable contact 7 with a small gap in a state where the contacts 6a and 7a are closed. .

  Also with this configuration, the vibration restricting portion 12B comes into contact with the movable contact 7 that vibrates when the contacts 6a and 7a are closed, so that the vibration is suppressed and chattering can be suppressed. In the present embodiment, the vibration restricting portion 12B can be obtained as a relatively simple configuration by using the interlocking lever 14B disposed at a position relatively close to the movable contact 7.

  (Fourth Embodiment) FIG. 4 is a side view showing the internal configuration of a remote control relay according to a fourth embodiment of the present invention.

  In the remote control relay 1C according to the present embodiment, the vibration restricting portion 12C is provided in the case 2C. That is, the vibration restricting portion 12C has a minute gap with respect to the end portion 7b of the movable contact 7 of the bottom wall portion 3a of the body 3C or the cover (not shown) with the contacts 6a and 7a closed. It is provided as a protruding wall at the opposite position.

  Also with this configuration, the vibration restricting portion 12C comes into contact with the movable contact 7 that vibrates when the contacts 6a and 7a are closed, so that the vibration is suppressed and chattering can be suppressed.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. For example, the arrangement, shape, size, and the like of the vibration restricting portion and the movable contact are not limited to the above embodiment, and various modifications can be made. Needless to say, the present invention can also be applied to a pair of remote control relays having a fixed contact and a movable contact.

It is a side view which shows the internal structure of the remote control relay concerning 1st Embodiment of this invention. It is a side view which shows a part of internal structure of the remote control relay concerning 2nd Embodiment of this invention. It is a side view which shows the internal structure of the remote control relay concerning 3rd Embodiment of this invention. It is a side view which shows the internal structure of the remote control relay concerning 4th Embodiment of this invention.

Explanation of symbols

1, 1A, 1B, 1C Remote control relay 2, 2C Case 6 Fixed contact 6a Fixed contact 7 Movable contact 7a Movable contact 7b End 10 Electromagnetic block (polar electromagnet device)
12, 12A, 12B, 12C Vibration restricting portion 13 Plunger 14, 14B Interlocking lever 17, 17A Bulkhead 18 Barrier portion

Claims (1)

In a remote control relay that includes a polarized electromagnet device in which a plunger moves forward and backward by controlling energization to a coil in a case, and opens and closes a fixed contact and a movable contact as the plunger moves forward and backward,
In a state where the fixed contact and the movable contact are closed, the movable contact having the movable contact is disposed with a gap, and includes a vibration regulating unit that regulates vibration of the movable contact,
The vibration restricting portion is disposed to face an end portion on the opposite side in the longitudinal direction with respect to the movable contact of the movable contact, and the end portion of the movable contact is bent toward the vibration restricting portion ,
The fixed contact having the fixed contact and the movable contact are provided in two pairs, and a partition that separates the two pairs is provided.
The vibration regulating part is provided on the partition wall,
The bulkhead includes a barrier portion that suppresses dust generated by contact between the vibration restricting portion and the movable contact from moving toward a contact portion between the fixed contact and the movable contact .

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