JPS63108633A - Switch contactor - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field The present invention relates to electromagnetic technology, for example. The present invention relates to a locking system and α device that can be suitably implemented in electrical appliances and the like.

Prior Art FIG. 5 is a perspective view of a typical prior art switching contact device 1. The configuration of the switching contact device 1 will be explained with reference to FIG. In addition, the jump contact device shown in Figure 5:! 1
1 is entirely sealed in an air chamber by a huffing ring (not shown). In the switching contact device 1, the coil 3 is placed on the base 2''.
is placed R, and for energizing/deenergizing the electric power to this filter 3, an amathia lht which is reciprocated in the direction of the arrow A1 or the direction of the arrow A2 is provided. Responding to this Amathia 4-
A card 5 is provided. This card 5 is allowed'fjJ
Close, facing near the a':231S side of α plate 6, OK! i!
A movable contact (not shown) is provided at the end of the Il contact plate 6. A fixed contact α is provided at a position opposite to the direction of the arrow A1 or A2 of the movable contact 7. 1.7. Plates 7, 3 are provided.

Achieving the reciprocating displacement of 11 η Amacia 4 - Fru magnetic path tI! A yoke 9 is provided for this purpose.

The operation of the conventional switching contact device 1 will be described below with reference to Figure R55. When the coil 3 is energized, it is energized and displaces the ``7'' matia 4 and 47 card 5, for example, in the direction of the arrow A1, and this card 5 moves against the movable contact plate 6.
1 provided on the movable contact plate 6 by pressing in the direction of arrow A1.
The movable contact contacts the fixed contacts of the contact plate 7. When the fill 3 is energized, the amachia 4 and the card 5 return 12 in the direction of arrow A2 due to the elasticity of the movable contact plate 6, and the movable contacts of the movable contact plate 6 fix the contact plate 3. In this way, the movable contacts on the gourd plate 6 selectively contact the fixed contacts on the contact plates 7 and 8, thereby switching between the fixed contacts on the contact plates 7 and 8. This is realized, and power, electrical signals, etc. are selectively taken out from the terminal group 10 provided on the base 2.

In the sealed switching contact device 1 having such a configuration,
As the temperature rises due to long-term use, the coil 3 fills 8#9. For example, paraffin will volatilize and generate paraffin gas, and the switching contact equipment will
! Organic gases such as polymethyl phosphoric acid contained in the PBT resin used in the PBT 11 are generated. Such organic gases are carbonized by the energy of the arc generated when the contacts are opened and closed, and these carbides are used in the movable contact plate 6 and the contacts. It adheres to the contacts formed on the plates 7 and 8, and this adhered carbide further adsorbs the organic gas, carbonizes, and grows while condensing. Due to the presence of such carbide between the contacts, the contact Moreover, the gap between such contacts is set within, for example, 1-111, and therefore, if the carbide exceeds 1! This will cause a bridge between the fixed contact and the opening/closing operation of the opening/closing contact device r!11.

In addition, if such a contact device is a so-called open type that does not have the airtight /% tongue described above, blanks etc. may enter between the contacts during soldering work, etc.
After all, a bridging phenomenon occurs.

Purpose The purpose of the present invention is to solve the above-mentioned technical problems, to prevent bridging of material that adheres between contacts, to prevent failures between contacts, and to achieve zero life expectancy. It is an object of the present invention to provide a switching contact device.

Embodiment FIG. 1 shows an opening/closing contact device according to an embodiment of the present invention. FIG. 11 is a perspective view showing the configuration of 111; The configuration of this embodiment will be explained with reference to FIG. The switching contact device 11 implemented by an electromagnetic relay or the like has a base 12 made of an electrically insulating material, and one side of the base 12 is provided with terminal groups 13 of vl number. On the opposite surface 111 of the base 12, an electromagnetic device having a configuration as described below is provided, and these are hermetically sealed by the housing 14.

Coil 15 is installed in Howsong 14! An amatia 1G is provided which is reciprocated in the direction of arrow B1 or B2 by applying/deenergizing power to the coil 15. A card 17 made of electrically insulating material is connected to this amatia 16, and this card 17
Movable contact plate 1 that is pressed in one direction and returns in the direction of arrow B2 by its own elastic force after this pressing force is released.
8 is provided.

The 'R end side of the movable contact α plate 18 is aligned in the direction (fjIJ
A pair of legs 20 and 21 are formed.A movable contact, which will be described later, is provided near the 11'4 portion of this leg 20 and 21. B
Fixed contact plates 22 and 23 each having fixed contacts, which will be described later, are provided at positions facing each other in one direction or in the direction of arrow B2. Further, a yoke 30 is provided for configuring a magnetic path that realizes reciprocating displacement of the Amachia 1G in the direction of the arrow B1 or the direction of the arrow B2.

FIG. 2 is a sectional view of the vicinity of the fixed contact plate 22.23 and the n portion 20.21 of the movable contact @18 shown in fjS1. @
The configuration of the switching contact device 211 will be described in detail with reference to FIG. 2. As mentioned above, on both surfaces of the roadside side of leg g20.21, it is possible! A contact 24 a, 24 b: 25 a
, 25 bQ31 (indicated by the reference numeral 24.25) are each fixed by, for example, welding.

Further, a movable contact of the fixed contact plate 22 and a fixed contact 26 that comes into contact with and separates from the movable contact 24 is provided on the surface of the α plate 18flll. Similarly, the movable contact plate 18 of the fixed contact @23
The surface of the example is provided with a fixed contact 27 that comes into contact with/leaves the movable contact 25. A semiconductor laser element 35 that emits a laser beam in a direction perpendicular to the moving direction B1 of the movable contact plate 18 is arranged near the 11 end side of the movable contact plate 18.

FIG. 3 is an electrical circuit diagram of the jump contact assembly R:11.11. A DC power supply 3G is connected between both ends 1 of the filter 15. Further, a timer 37 and a semiconductor laser element 35 are connected in series to this coil 15.

The contact opening/closing operation of the switching contact device 111 having such a configuration will be explained. When the coil 15 is demagnetized, the movable contact 25 contacts the fixed contact 27, and when the coil 15 is energized, the movable contact 24 contacts the fixed contact 26.
Assume that it comes into contact with First, the coil 15 is demagnetized, and when the fill 15 is excited at time t1 as shown in FIG. 4(1) with the movable contact 25 in contact with the fixed contact 27, the movable contact plate 18 is displaced. The movable contact 25 separates from the fixed contact 27, and as the movable contact 24 comes into contact with the fixed contact 2G, a DC power supply 36 is applied to the semiconductor laser element 35 as shown in FIG. 4 (2), and laser light is irradiated. be done. The timer 37 is set at time 1 and reset at time t2 after a predetermined period W has elapsed, thereby stopping the oscillation of the semiconductor 1/-1 35 as shown in FIG. 4(2). After that, 1l
The fifth filter 15 is demagnetized. after that,
When the fill 15 is again magnetized to rlh at time +4, the double conductor laser probe 35 oscillates for a period W in the same manner as described above.

In this way, in synchronization with the supply of power to the coil 15, the semiconductor laser element 35 irradiates 1.-the laser light for a predetermined period W. By irradiating the laser light, the semiconductor laser element 35 causes the movable contact to 24.25 is the fixed contact 26
．． 27 and contact plate 1B, 22.23 are heated,
Therefore, the substances liquefied and attached to the surfaces of the contacts 24, 25, 26, and 27 are vaporized and removed. Therefore, it is possible to prevent insulation defects caused by substances generated at the contacts. In the above-described embodiment, 1. the semiconductor laser element 35 is caused to oscillate in synchronization with the supply of power to the coil 15; However, the semiconductor laser element may be caused to oscillate in synchronization with the time when the power to the coil 15 is cut off.
Alternatively, the oscillation may be caused to oscillate in synchronization with the supply and cutoff of power.

Effects As described above, according to the present invention, a semiconductor laser element is provided that irradiates laser light in a direction intersecting the direction of opening/closing movement of the fixed contact and the movable, after the movable, contact. It is possible to liquefy and remove the rocky substances that bridge the gap, thereby preventing insulation defects and saving life.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a seventh switching device 11 according to an embodiment of the present invention, FIG. 2 is a sectional view of the fixed contact plates 22 and 23 and the movable contact plate 18, and FIG. 3 is a schematic diagram of the switching contact device. 11 is an electric circuit diagram, FIG. 4 is a timing chart for explaining the operation of the semiconductor laser element 35, and FIG. 5 is a perspective view of the conventional latch rT1 contact device 1. 11...Opening/closing contact Yc position, 15...Fill, 18.
...Movable contact plate, 22.23...Fixed contact plate, 24
a, 241). 25a+25b...Movable contact, 26.27...Fixed contact, I31, 132...Contact, direction of opening/closing movement of bezel, 3
5...Semiconductor laser element-, 3G...DC power supply, 3
7...Timer 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] A switching contact device in which a fixed contact and a movable contact come into contact with and separate from each other is characterized by being provided with a semiconductor laser element that irradiates laser light in a direction intersecting the direction of opening and closing movement of both the contacts. Switching contact device.