JPH0554781A - Relay - Google Patents

Abstract

PURPOSE:To facilitate the matching of unbalanced spring load between a main contact block and an auxiliary contact block, and raise a spring driving point, and provide a stable operation. CONSTITUTION:An armature 37a and the magnetic pole piece 28 of a yoke 27 are opposed to each other nearly on the whole. An armature 37b and a short piece 28a are partially opposed to each other in the lower part so as to unbalance the attracting forces. Although the magnetic pole surface 30 of an iron core 29 is opposed to one magnetic pole piece 28 of the yoke 27, the iron core 29 and the short piece 28a are not opposed to each other so as to move the attracting force central position of the whole electromagnet upward. An engaging piece 29b formed on the iron core 29 is fitted to the recessed part 54 of the coil frame 31 to position the iron core 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay for remote control.

[0002]

2. Description of the Related Art A conventional relay of this type is shown in FIG.
A main contact block B and an auxiliary contact block C are arranged on both sides of the base 11, and a yoke 27 'and an iron core 2 are provided in the center.
9 ', a coil block A including a coil frame 31 around which a coil 32 is wound is provided. A movable block D including a movable frame 36, an armature 37, and a permanent magnet 38 is rotatably arranged in the coil block A.
A cover 46 is provided on the base 11.

A rotary shaft 35 is projected from the flange portion 33 of the coil frame 31, and a shaft hole 40 axially supporting the rotary shaft 35 is formed at the end of the movable frame 36. Movable frame 36
By inserting the rotating shaft 35 of the coil frame 31 into the shaft hole 40, the movable frame 36 is rotatable about the rotating shaft 35.

[0004]

FIG. 16 is an explanatory view showing the relationship of the attraction force between the iron core 29 'and the armature 37 in the above construction. The magnetic pole pieces 28 formed at the ends of the conventional yoke 27 'are formed to face each other with the same size, so that the attraction force is balanced rather than unbalanced. The main contact block B
The leaf spring 14 is driven by the movable frame 36.

The armature 37 is disposed on the movable frame 36, and the armature 37 is attracted to the magnetic pole surface 30 of the iron core 29 'and the magnetic pole piece 28 of the yoke 27', whereby the movable frame 36 is moved.
Drives the leaf spring 14 to open and close the contacts. Here, the arrangement of the armature 37, the iron core 29 ', and the yoke 27' with the magnetic pole piece 28 is configured as shown in FIG.
And the armature 37 face each other, and the iron core 29 'and the pole piece 28 also face each other. As shown in FIG. 16, the center of the attractive force between the iron core 29 ′ and the amateur 37 (the line B in the figure) is on the upper side, and the attractive force between the magnetic pole piece 28 of the yoke 27 ′ and the amateur 37 is on the lower side. There is a center (line C in the figure).

Therefore, the center of the attractive force of the entire electromagnet (the line a in the figure) exists at the center. The point where the leaf spring 14 is driven on a line between the center of the attraction force of the entire electromagnet and the axis of the movable frame 36 (the axial support portion of the shaft hole 40 and the rotary shaft 35) is the spring drive point P. In such a case, that is, when the attraction force is not unbalanced, since the center position of the electromagnet is located substantially in the vicinity of the center of the armature 37, the spring drive point P is determined from the balance of the load for horizontally driving the movable frame 36.
Is at the top.

FIG. 17 shows a case in which the attraction force is unbalanced in order to facilitate matching with the unbalanced spring load of the main contact block and the auxiliary contact block. In order to unbalance the attraction force, a yoke 27 'is provided. One of the magnetic pole pieces 28 is shortened to form a short piece 28a. When the short piece 28a is formed in this manner, there is a problem that the center position of the electromagnet (the line a in the figure moves to the lower side and the spring drive point P moves to the lower side accordingly).

When the spring driving point P moves downward, there is a problem that stable operation cannot be obtained. The present invention has been provided in view of the above points, and facilitates unbalanced spring load and alignment of the main contact block and the auxiliary contact block, and pulls the spring drive point upward to obtain stable operation. The purpose of the present invention is to provide a relay.

[0009]

According to the present invention, one end of an iron core is connected to an armature that is attracted to a magnetic pole surface of an iron core around which the coil is wound by exciting or non-exciting a coil wound around a coil frame. In a relay that includes a yoke, the armature is attracted to the magnetic pole piece formed opposite to the other end of the yoke and the magnetic pole surface of the iron core, and opens and closes the contacts of the main contact block and the auxiliary contact block, formed opposite the other end of the yoke. One of the pair of magnetic pole pieces is shorter than the other and has a narrow width, the short piece and the amateur have opposing surfaces, and the short piece and the iron core do not face each other, and a part of the coil frame and the iron core are The iron core is positioned by mating the parts with the concave and convex parts.

[0010]

The short piece is used to unbalance the suction force to facilitate matching with the unbalanced spring load of the main contact block and the auxiliary contact block, and the short piece and the iron core are not opposed to each other, so that the iron core and the amateur are separated from each other. By pulling the center position of the attraction force acting on the upper part, the center position of the attraction force of the entire electromagnet can be moved to the upper part, and the spring drive point can be pulled up to the upper part for stable operation. And a part of the iron core are fitted in concave and convex to position the iron core, and the distance between the iron core and the armature, the pole piece, and the short piece can be made constant to stabilize the operation.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.
To do. First, before explaining the remote control relay itself, this
Mokon relay is used, and monitoring control is performed by time division multiplex transmission.
A schematic configuration of a remote monitoring control device for controlling will be described. Figure
11 is a remote monitoring system using the remote control relay according to the present invention.
The central control unit 1 shows the schematic configuration of the control system.
And a unique address is set and switch S₁~ S _FourMonitor
Multiple monitoring terminals 2, load L₁~ L_FourTo control
Control terminal 3, wireless relay terminal 7, external in
Interface terminal 8 and selector switch terminal 9
And are connected by a pair of signal lines 4.

The transmission signal Vs sent from the central control unit 1 to the signal line 4 is, as shown in FIG. 12A, a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and a terminal. vessels 2, 3, address data signal AD for transmitting 8-bit address data for calling the 7-9, the control data signal CD for transmitting the control data for controlling the load L ₁ ~L _4, check sum data signal CS
Also, it is a multi-pole (± 24V) time division multiplex signal composed of a return standby signal WT for setting a return period from the terminals 2, 3, 7-9, and data is transmitted by pulse width modulation. There is.

In each of the terminals 2, 3, 7-9, when the address data of the transmission signal Vs received via the signal line 4 and its own unique address data match, the transmission signal Vs
s control data is taken in, and the monitoring data signal is returned as a current mode signal (a signal sent by short-circuiting between the signal lines 4 via an appropriate low impedance) in synchronization with the return standby signal WT of the transmission signal Vs. It is supposed to do.

In the central control unit 1, dummy signal transmitting means for constantly transmitting a dummy transmission signal in which the mode data signal MD is set to a dummy mode, any monitoring terminal device 2 or wireless relay terminal device 7, an external device. When the interrupt signal Vi returned from the interface terminal device 8 and the selector switch terminal device 9 as shown in FIG. 12B is received, the interrupt generating terminal devices 2, 7 to 9 are detected and the terminal device 2, An interrupt processing means for accessing 7 to 9 to return the monitoring data is provided.

Further, in the central control unit 1, as described above,
Then, the monitoring terminal 2 or the wireless relay terminal 7,
External interface terminal 8, selector switch terminal
Based on the monitoring data returned from the device 9 to the central control unit 1.
Corresponding load L₁~ L_FourControl terminal 3 for controlling
Create the control data to be transmitted and
Data to the control terminal device 3 via the signal line 4 by time division multiplexing.
Transmit and load L₁~ L _FourTo control.

The wireless relay terminal device 7 is a terminal device for relaying data of an optical wireless system including an optical wireless transmitter X, an optical wireless receiver Y and a wireless signal line 4a, and is transmitted from the optical wireless transmitter X. The optical wireless receiver Y receives the received optical signal, the received data is received via the wireless signal line 4a, and the data is transferred to the central controller 1.

The external interface terminal 8 is
The selector switch terminal 9 is a terminal that performs data transmission with the external control device 8a, and is a terminal that centrally controls a large number of loads. Incidentally, the monitoring terminal 2 and the control terminal 3 arranged in the distribution board 6 or the relay control board 6a have a distribution board agreement size, and the control output thereof causes a remote control relay for load control. (Latching relay that can be turned on / off by a hand switch) 5 is controlled.

Next, the remote control relay used in the control terminal 3 will be described. 13 shows an exploded perspective view of the control terminal device 3, and FIG. 14 shows a block diagram.
Here, the remote control relays are represented by Ry ₁ to Ry ₄ . The transmission module 59 includes a signal processing circuit including a microcomputer, an address setting unit 58 formed by an EEPROM, a photodiode PD, a light emitting diode LD, and the like.

Further, as shown in FIG. 14, the transmission module
The output side of each of the four sets of rule 59 is set winding S and reset respectively.
Remote control which is a two winding latching relay with winding R
Relay Ry₁~ Ry_FourIs connected. Each relay Ry₁
~ Ry_FourIs the main contact R₁~ R _FourAnd auxiliary contact r₁~ R_FourTo
Has and main contact point R₁... Auxiliary contact with load connected between
r₁The contact output of ... Is signal processing of the transmission module 59.
It is input to the circuit and returned to the central controller as a monitoring signal
It is supposed to be done.

Normally, arbitrary relays Ry ₁ ... Are driven based on the control data transmitted from the central control unit to control ON / OFF of the load connected to the main contacts R _1. However, in this embodiment, the relays Ry ₁ ...
The switches SW ₁ and SW ₂ for directly turning on and off the power source and turning the load on and off are provided. The switch SW ₁ is a switch for collectively turning on the relays Ry ₁ ... And the switch SW ₂ is a relay Ry.
It is a switch that turns off ₁ ...

Now, the transmission signal Vs transmitted via the signal line 4 is input to the signal processing circuit of the transmission module 59, and the unique address data set in the address setting section 58 and the received transmission signal are received. The relay Ry ₁ ... Corresponding to the designated load is determined by determining the match with the Vs address data and taking in the control data (dimming control data in the embodiment) that is transmitted subsequently when the address matches.
To control.

Here, the relays Ry ₁ ... Energize the reset winding R or the set winding S of the relay Ry ₁ by the signal output from the transmission module 59, and the main contact R.
Control ₁ off or on. The load is controlled to be turned on or off by turning on / off the main contact R ₁ . The load state is created as a monitoring signal indicating the operating state of the load by inputting the contact output of the auxiliary contact r ₁ of the relay Ry _{1 to} the transmission module 59. A return signal V _B for returning the monitoring data to be returned to the central controller 1 as a current mode signal (a resistor R having a low resistance value is inserted between the signal lines 4) is sent to the signal line 4. ..

On the other hand, the EE forming the address setting unit 58
Writing data to the PROM is performed by the transmission module 59.
Signal processing circuit. Figure 1
As shown in FIG. 3, the terminal case 60 is formed into a module size of two distribution board contract dimensions, and the terminal case 60 is composed of a body 60a and a cover 60b, and the body 60a and the cover 60b are different from each other. It is assembled and coupled by a fixing screw 73.

The printed circuit board block 61 is composed of two upper and lower printed circuit boards 61a and 61b. The upper printed circuit board 61a has a signal processing circuit composed of a microcomputer and an address setting section 58 composed of an EEPROM.
And a photodiode P for transmitting and receiving an optical wireless signal
D and a light emitting diode LD, a light receiving diode LDc for confirmation of reception, and switches SW ₁ and SW ₂ for collective control are mounted. Further, relays Ry _{1 to} Ry ₄ are mounted on the lower printed circuit board 61b.

The upper printed circuit board 61a is provided on the back surface of the cover 60b with screws 72, and the opening 62a corresponding to the light emitting diode LD and the photodiode PD is provided on the front surface of the terminal case 60, that is, one end side of the cover 60b.
And an opening 62 corresponding to the confirmation light emitting diode LDc.
b are provided respectively, and a filter 63 for cutting unnecessary infrared rays is provided in the opening 62a for transmitting and receiving the optical wireless signal.

Further, the light emitting diode LDc is provided with an opening 62.
The translucent nameplate 70 is attached to the concave portion 67 of the cover 60b having the opening 62b and the filter 63. The nameplate 70 has switches SW ₁ and SW
A notch 70a is formed to expose the _second operation portion.
In the case of a non-transparent nameplate, the opening 62b and the filter 63 may be cut out.

At one end of the cover 60b are provided four sets of connection terminals 74 for outputting contact outputs of the main contacts R ₁ ... Provided with lead wires 75. These connection terminals 74 are screwed with screws 78. It is covered with the attached terminal cover 79. Also,
A signal terminal 7 to which a signal line is connected to the other end of the cover 60b
7 and are provided. Each terminal 74, 77 is composed of a terminal plate and a terminal screw.

In the circuit shown in FIG. 14, terminals T ₁ ...
T ₈ corresponds to the connection terminal 74, and the signal terminal 77 corresponds to the terminal T.
₉ and T ₁₀ correspond to each other. On the other hand, terminal case 60
The body 60a is provided with a mounting groove 66 into which a connecting plate or a DIN rail mounting adapter is mounted. Next, the remote control relay which is the gist of the present invention will be described. This remote control relay corresponds to the remote control relays Ry ₁ ... Also, the main contact R ₁
... correspond to the main contact block B, and the auxiliary contacts r ₁ ... correspond to the auxiliary contact block C.

FIG. 4 is an exploded perspective view of the whole, FIG. 5 is a perspective view, and FIG. 6 is a plan view. A coil block A is arranged at the center of the upper surface of a base 11 made of an insulating material, a main contact block B is arranged outside the partition wall 12 that is integrally projected from the base 11, and an auxiliary contact is provided on the other insulating wall 12a. A block C is provided. Conductive terminal board 1
The base of the conductive leaf spring 14 is fixed to the upper end of 3,
The terminal plate 13 is arranged in the base 11 by being inserted into a hole 11 a formed in the base 11. Leaf spring 14
The movable contact 15 is fixed to one surface of the tip of the and the conductor plate 16 is fixed to the other surface. Then, these movable contacts 15,
The leaf spring 14 and the conductor plate 16 are fixed in three layers. That is, the leaf spring 14 and the conductor plate 16 are simultaneously caulked and fixed by the movable contact 15.

Further, an iron piece 17 is fixed to the lower part of the conductor plate 16. A flexible braided conductor 18 is spot-welded and connected between the lower portion of the conductor plate 16 and the central portion of the terminal plate 13 in parallel with the leaf spring 14. A fixed contact 20 facing the movable contact 15 is fixed to the upper end of a conductive terminal plate 19 arranged in the hole 11b of the base 11, and a substantially U-shaped iron piece 21 is provided in the center. ing.

The auxiliary contact block C arranged on the opposite side of the main contact block B is constructed as follows. That is, the base portion of the leaf spring 25 having the fixed contact 23 fixed to the upper end of the auxiliary terminal plate 22 and the movable contact 26 facing the fixed contact 23 fixed to the tip is inserted into the hole 11c of the insulating wall 12a. The auxiliary terminal plate 22 is also inserted and arranged in the hole of the insulating wall 12a.

Next, the coil block A arranged between the main contact block B and the auxiliary contact block C and the partition wall 12 at the center of the upper surface of the base 11 and the insulating wall 12a will be described. A square hole 27a is formed in one piece of the yoke 27 bent into the L shape, and the pole piece 28,
28a are erected so as to face each other. Here, as shown in FIG. 2, one of the magnetic pole pieces of the yoke 27 is a short piece 28a having a short width.

A substantially L-shaped iron core 29 is inserted through the inside of the coil frame 31, and a projection 29a at the tip is a hole 27a of the yoke 27.
And the iron core 29 is fixed to the yoke 27.
Fixed to. Further, as shown in FIG. 2, an engaging piece 29b is integrally projected from the inner lower surface of the end of the iron core 29 on the magnetic pole surface 30 side, and the engaging piece 29b is formed as shown in FIGS. , The recess 5 formed in the lateral piece 53 of the collar 52 of the coil frame 31
The iron core 29 is positioned by engaging with No. 4.

The end portion of the iron core 29 extends from the coil frame 31, and both side surfaces serve as magnetic pole surfaces 30. A coil 32 is wound around the outer peripheral surface of the coil frame 31, and one thick walled flange portion 33 of the coil frame 31 has three coil terminals 34 connected to the ends of the coil 32 embedded therein. The lower portions of the coil terminals 34 are inserted into the holes 11 _{1 of the} base 11, respectively. A protrusion 33a is formed on the upper surface of the flange 33 of the coil frame 31, and a rotary shaft 35 is formed on the protrusion 33a.

The movable block D disposed above the coil block A includes a movable frame 36 and two armatures 37 (3
7a, 37b) and a permanent magnet 38 and the like. A shaft hole 40 is formed at one end of the movable frame 36 made of an insulator. The rotating shaft 3 of the coil frame 31 is inserted into the shaft hole 40.
5 is inserted and pivotally supported, and the movable frame 36 is rotatable. Two armatures 37 sandwiching a permanent magnet 38 are arranged on the lower surface of the other end of the movable frame 36, and an arm portion 41 for driving the leaf spring 14 is formed from one side portion of the movable frame 36.

As shown in FIGS. 1 and 2, the amateur 3
7a and the magnetic pole piece 28 of the yoke 27 are substantially opposed to each other, but the armature 37b and the short piece 28a are partially opposed to each other in the lower part in order to unbalance the attraction force. Further, the magnetic pole surface 30 of the iron core 29 and the yoke 27
One of the magnetic pole pieces 28 faces each other, but the iron core 29 and the short piece 28a do not face each other in order to move the attraction force center position of the entire electromagnet to the upper side.

The arm portion 41 constituting the card is formed with a slit 44 at the lower surface opening, and the leaf spring 14 is arranged in this slit 44. The slit 44 has an opening on the lower surface and lateral sides, so that the leaf spring 14 can be easily arranged in the slit 44. Further, a protrusion 45 is integrally provided on the side opposite to the arm portion 41.
The leaf spring 25 of the auxiliary contact block C is arranged in the slit formed on the lower surface of the leaf spring 25 to drive the leaf spring 25.

A box-like cover 46 made of an insulating material having a lower opening is provided on the base 11 on which the above-mentioned members are arranged. When the movable block D is arranged on the coil block A, Is the main contact block B as shown in FIG.
The leaf spring 14 is housed in the slit 44 of the movable frame 36, and the leaf spring 25 of the auxiliary contact block C is housed in the slit of the protrusion 45. Both armatures 37 are positioned between a pair of voids formed between the magnetic pole surface 30 of the iron core 29 and the magnetic pole piece 28. In this way, the movable block D is arranged above the coil block A to form a polar electromagnet block.

Then, by exciting and de-exciting the coil 32, the inner surface of the armature 37 is alternated with the magnetic pole surface 30 of the iron core 29.
And the magnetic pole piece 28 of the yoke 27 is attracted to the movable frame 36.
By rotating the main contact block B and the auxiliary contact block C
I am trying to drive. By the way, the remote control relay is a latching relay, and the coil 32 has two windings. The coil 32 is connected to the coil terminal 34 as described above, but as shown in FIGS.
4, one is a common terminal 34c, and the other is a set terminal 34a for turning on the main contact and a reset terminal 34b for turning off the main contact.
Is.

1 (a) and 6 show the non-excited state, one armature 37b is the magnetic pole surface 30 of the iron core 29.
The permanent magnet 3 is attached to the pole piece 28 of the other amateur 37a.
Each of the magnetic contacts 8 and 15 of the main contact block B is in the open state. Further, since the movable frame 36 is biased in the counterclockwise direction, the leaf spring 25 of the auxiliary contact block C is elastically contacted by the slit of the protrusion 45 of the movable frame 36 to open both contacts 23, 26. There is.

Then, the set terminal 34a and the common terminal 34
When a voltage is applied to c, the coil 32 is excited and the coil shown in FIG.
As shown in (b), one of the amateurs 37a has a core 2
The magnetic pole surface 30 of No. 9 and the armature 37b of the other side are attracted to the short piece 28a, respectively, and the movable frame 36 turns clockwise about the rotary shaft 35 to be in the ON state. That is,
By rotating the movable frame 36 in the clockwise direction, the leaf spring 14 of the main contact block B is urged by the arm portion 41 so that both contacts 15,
20 is closed, and the leaf spring 2 is formed in the slit of the protrusion 45.
5 is driven to close both contacts 23 and 26. When voltage is applied to the reset terminal 34b and the common terminal 34c in this ON state, the state shown in FIG. 6 is restored.

Since the magnetic pole piece 28 and the short piece 28a are formed on the yoke 27 as described above, the attraction force characteristic can be made unbalanced as shown in FIG.
It is possible to easily match the main contact block B and the auxiliary contact block C with unbalanced spring loads as in the present embodiment. Further, since the magnetic pole surface 30 of the iron core 29 and the one magnetic pole piece 28 of the yoke 27 face each other and the iron core 29 and the short piece 28a do not face each other, as shown in FIG.
Move the center of attraction between 9 and amateur 37 to the upper part,
The center position of the attraction force of the entire electromagnet can be set to the same position as when it is not unbalanced.

That is, by pulling up the center of attraction force acting between the iron core 29 and the armature 37, the center of attraction force of the entire electromagnet can be moved to the upper part, and the spring drive point can be pulled up to the upper part, which is stable. You can get the action. Here, since the braid conductor 18 is connected in parallel to the leaf spring 14 to the main contact block B of the main contact, when a large current such as a short-circuit current flows, the current flows into the leaf spring 14 and the braid. Since it is branched to the conducting wire 18 to prevent the leaf spring 14 from being melted and the heat generation of the leaf spring 14 can be reduced, melting of the arm portion 41, which is the spring driving portion of the movable frame 36, is also prevented.

When a short circuit current flows, the conductor plate 16
The iron pieces 17 and 21 provided on the terminal plate 19 generate a suction force to prevent electromagnetic repulsion of the contacts. still,
In order to increase the current withstanding capacity of the leaf spring 14, the cross-sectional area of the leaf spring 14 itself may be increased, but in this case, the spring load becomes large, and matching with the attraction force of the electromagnet of the movable block D becomes difficult. turn into.

However, in the present embodiment, since only the leaf spring 14 having a small cross-sectional area is pushed, the spring load similar to that of the conventional relay can be obtained. Although the braided conductor 18 is attached to the conductor plate 16 in this embodiment, the braided conductor 18 may be directly connected to the back surface of the movable contact 15 or the like. In the embodiment of the present invention, the main contact side is the flexure and the auxiliary contact side is the lift-off type, but the invention is not limited to this. Further, on the auxiliary contact side, in order to improve reliability, the contacts 23 and 26 are plated with gold or the like.

FIGS. 7 to 9 show an embodiment in which two sets of main contact blocks B are provided to form a so-called double cut type.
That is, the partition walls 12 are formed on both sides of the base 11,
Main contact blocks B having the same structure as the previous embodiment are arranged outside the partition walls 12, and auxiliary contact blocks C are arranged outside one main contact block B. Further, in this embodiment, the leaf spring 2 of the auxiliary contact block C is used.
5 is fixedly arranged on the upper portion of the auxiliary terminal plate 24 fixed to the base 11.

In addition, the protrusion 33 of the flange 33 of the coil frame 31
A semi-circular recess 48 is formed in a.
A rotary shaft 35 is provided at the center of 8. In addition, the movable frame 3
A boss 49 that fits into the recess 48 is provided at one end of the shaft 6, and the shaft hole 4 into which the rotary shaft 35 is inserted is inserted into the boss 49.
0 is drilled. Further, since the main contact blocks B are arranged on both sides, the arm portions 41 and 50 are formed on both sides of the movable frame 36 in the present embodiment, and the protrusion portions 42 and 50 formed on the both arm portions 41 and 50, respectively. The leaf springs 14 of both the main contact blocks B are arranged in the slits 44 between 43. Furthermore, the arm 50
A protrusion 51 for urging the leaf spring 25 of the auxiliary contact block C is provided at the tip of the protrusion.

FIG. 10 shows another embodiment of the short piece 28a and the engagement piece 29b, in which the short piece 28a of the yoke 27 is formed inside and the engagement piece 29b of the iron core 29 is formed at the end side.

[0049]

As described above, according to the present invention, one end of the iron core is connected to the armature that is attracted to the magnetic pole surface of the iron core around which the coil is wound by exciting or non-exciting the coil wound around the coil frame. In a relay that includes a yoke, the armature is attracted to the magnetic pole piece formed opposite to the other end of the yoke and the magnetic pole surface of the iron core, and opens and closes the contacts of the main contact block and the auxiliary contact block, formed opposite the other end of the yoke. One of the pair of magnetic pole pieces is shorter than the other and has a narrow width, the short piece and the amateur have opposing surfaces, and the short piece and the iron core do not face each other, and a part of the coil frame and the iron core are Since the iron core is positioned by fitting the parts with the concave and convex parts, the short piece makes the suction force unbalanced to facilitate the unbalanced spring load and matching of the main contact block and the auxiliary contact block. As opposed to and, by pulling up the center of attraction force acting between the iron core and the amateur to the top, move the center of attraction force of the entire electromagnet to the top, and pull the spring drive point up to obtain stable operation. In addition, a part of the coil frame and a part of the iron core are fitted in concavo-convex to position the iron core, and the distance between the iron core and the armature, the pole piece, and the short piece can be made constant to stabilize the operation. This is an effect that can be achieved.

[Brief description of drawings]

FIG. 1A and FIG. 1B are cross-sectional views of essential parts of an embodiment of the present invention during operation.

FIG. 2 is a perspective view of the yoke and the iron core of the same.

FIG. 3 is an explanatory diagram showing a suction force characteristic of the same.

FIG. 4 is an exploded perspective view of the entire relay described above.

FIG. 5 is a perspective view of the entire relay of the above.

FIG. 6 is a plan view of the above relay.

FIG. 7 is an exploded perspective view of another embodiment of the above.

FIG. 8 is an overall perspective view of the above relay.

FIG. 9 is a plan view of the above relay.

FIG. 10 is a perspective view of another embodiment of the above iron core and yoke.

FIG. 11 is a schematic system diagram of a remote control system using this relay.

12 is an explanatory diagram of the operation of FIG.

FIG. 13 is an exploded perspective view of a control terminal.

FIG. 14 is a block circuit diagram of a control terminal device.

FIG. 15 is an exploded perspective view of a conventional relay.

FIG. 16 is an explanatory diagram of a conventional example.

FIG. 17 is an explanatory diagram of another conventional example.

[Explanation of symbols]

 27 yoke 28 magnetic pole piece 28a short piece 29 iron core 30 magnetic pole surface 32 coil 37 amateur

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 14, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

According to the present invention, one end of an iron core is connected to an armature that is attracted to a magnetic pole surface of an iron core around which the coil is wound by excitation and reverse excitation of the coil wound around a coil frame. In a relay that includes a yoke, the armature is attracted to the magnetic pole piece formed opposite to the other end of the yoke and the magnetic pole surface of the iron core, and opens and closes the contacts of the main contact block and the auxiliary contact block, formed opposite the other end of the yoke. One of the pair of magnetic pole pieces is shorter than the other and has a narrow width, the short piece and the amateur have opposing surfaces, and the short piece and the iron core do not face each other, and a part of the coil frame and the iron core are The iron core is positioned by mating the parts with the concave and convex parts.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction content]

Then, the inner surface of the armature 37 is alternated by the excitation and reverse excitation of the coil 32 so that the magnetic pole surface 30 of the iron core 29 is alternately formed.
And the magnetic pole piece 28 of the yoke 27 is attracted to the movable frame 36.
By rotating the main contact block B and the auxiliary contact block C
I am trying to drive. By the way, the remote control relay is a latching relay, and the coil 32 has two windings. The coil 32 is connected to the coil terminal 34 as described above, but as shown in FIGS.
4, one is a common terminal 34c, and the other is a set terminal 34a for turning on the main contact and a reset terminal 34b for turning off the main contact.
Is.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0049

[Correction method] Change

[Correction content]

[0049]

As described above, according to the present invention, one end of the iron core is connected to the armature that is attracted to the magnetic pole surface of the iron core around which the coil is wound by the excitation and reverse excitation of the coil wound around the coil frame. In a relay that includes a yoke, the armature is attracted to the magnetic pole piece formed opposite to the other end of the yoke and the magnetic pole surface of the iron core, and opens and closes the contacts of the main contact block and the auxiliary contact block, formed opposite the other end of the yoke. One of the pair of magnetic pole pieces is shorter than the other and has a narrow width, the short piece and the amateur have opposing surfaces, and the short piece and the iron core do not face each other, and a part of the coil frame and the iron core are Since the iron core is positioned by fitting the parts with the concave and convex parts, the short piece makes the suction force unbalanced to facilitate the unbalanced spring load and matching of the main contact block and the auxiliary contact block. As opposed to and, by pulling up the attraction force center position acting between the iron core and the amateur to the top, the attraction force center position of the entire electromagnet is moved to the top, and the spring drive point is pulled up to obtain stable operation. In addition, a part of the coil frame and a part of the iron core are fitted in concavo-convex to position the iron core, and the distance between the iron core and the armature, the pole piece, and the short piece can be made constant to stabilize the operation. This is an effect that can be achieved.

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure Amendment 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 15

[Correction method] Change

[Correction content]

FIG. 15

Claims (1)

[Claims] 1. An armature which is attracted to a magnetic pole surface of an iron core around which the coil is wound by exciting or non-exciting a coil wound around a coil frame, and a yoke to which one end of the iron core is connected. In a relay that opens and closes the contacts of the main contact block and the auxiliary contact block by attracting the armature to the pole piece facing the end and the pole face of the iron core, one of the pair of pole pieces formed facing the other end of the yoke The short piece is narrower and narrower than the other, and the short piece and the amateur have opposing surfaces, and the short piece and the iron core are not opposed to each other, and a part of the coil frame and a part of the iron core are fitted in concavo-convex. A relay characterized by positioning the iron core.