JPH0736310B2 - High frequency relay - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency relay, and more particularly to a high frequency relay used in a high frequency matrix switch circuit.

2. Related Art and its Problems Conventionally, when a high frequency signal is used in a matrix switch circuit (FIG. 4) that switches and connects a plurality of parallel signal input lines and a plurality of parallel signal output lines orthogonal to the parallel signal input lines. , It is necessary to ensure high isolation. However, in order to obtain high isolation, it is necessary to increase the distance between the signal lines, so it has been difficult to reduce the size of the relay and increase the mounting density of the relay on the substrate.

By the way, as a relay used in the above-mentioned circuit, there is, for example, one described in Japanese Utility Model Laid-Open No. 59-166344, and when the above-mentioned circuit is constructed on a substrate, it becomes as shown in FIG. .

Note that, for convenience of explanation, the relay 60 shows only the contact mechanism portion, and the dotted lines and the one-dot chain lines mean wirings arranged so as not to cross on the back surface of the substrate.

The relay 60 has a first contact mechanism section 61 on the surface of the base 60a.
Also, the second contact mechanism section 62 is arranged in parallel.

The first contact mechanism section 61 includes three fixed contact terminals 61a, 61c, 61b.
And the fixed contact terminals 61a, 61
C and 61c, 61b are provided with movable contact pieces 63 and 64 so that they can be brought into contact with and separated from each other.

The second contact mechanism section 62 includes three fixed contact terminals 62a, 62c, 62b.
And the fixed contact terminals 62a, 62
C and 62c, 62b are provided with movable contact pieces 65 and 66 respectively so as to be able to come into contact with and separate from each other.

Therefore, with a contact drive card (not shown) that reciprocates based on the excitation and demagnetization of an electromagnet device (not shown),
When the movable contact pieces 63, 64 and 65, 66 are reciprocally moved in conjunction with each other in the same direction, the movable contact pieces 63 and 65 open and close to the fixed contact terminals 61a, 61c and 62a, 62c, The movable contact pieces 64 and 66 are fixed contact terminals 61c, 61b and 62c, 62b.
Close and open to switch and connect the signal input line and signal output line.

However, in the conventional relay 60, the first contact mechanism unit 61
And the second contact mechanism section 62 are arranged in parallel in parallel, so if a plurality of parallel signal input lines and a plurality of parallel signal output lines orthogonal to this are switched and connected,
The wiring is meandering, and circuits of different signals are close to each other. Therefore, it takes a lot of time to design the circuit and it is difficult to obtain high isolation.

Moreover, when a matrix switch circuit is configured with the conventional relay 60, fixed contact terminals that configure a circuit of different signals,
For example, the fixed contact terminal 61b of the relay 60 located on the upper left side in FIG. 5, the fixed contact terminal 61a of the relay 60 located below this, or the fixed contact terminal 62b of the relay 60 located on the lower left side. , And fixed contact terminals 61b of the relays 60 adjacent to each other approach each other. Therefore, when a plurality of relays 60 are installed side by side, it is necessary to provide constant intervals l ₁ and l ₂ between the relays 60. As a result, relay 6
There is a problem that the board on which 0 is mounted is large and the mounting density is low.

Means for Solving the Problems In order to solve the above problems, the present invention is a contact drive card that is driven based on excitation and demagnetization of an electromagnet device, and includes a first contact mechanism section and a first contact mechanism section arranged on a base surface. In a high-frequency relay that opens and closes the two-contact mechanism section in an interlocking manner, an extension line passing through the fixed contact terminal of the first contact mechanism section and an extension line passing through the fixed contact terminal of the second contact mechanism section are arranged so as to be orthogonal to each other. There is a configuration.

Operation Therefore, according to the present invention, the first contact mechanism section and the second contact mechanism section constitute a circuit orthogonal to the inside of the relay.

Embodiment An embodiment according to the present invention will be described below with reference to the accompanying drawings of FIGS. 1 and 2.

A high-frequency relay 1 according to the present invention is roughly composed of a base 2 and
The first and second contact mechanism parts 10 and 20 incorporated in the base 2
And an electromagnet device 30, a contact drive card 40, and a drive converter 50.

The base 2 has a substantially box shape, and partition walls 3, 4 projecting along adjacent side walls partition the groove 5, groove 6, and recess 7.

The grooves 5 and 6 are arranged so as to have a substantially L shape, and the guide grooves 3a and 3 provided in the partition walls 3 and 4 are provided.
It communicates with the recess 7 via b and 4a, respectively.

The recess 7 is provided with a positioning recess 7a for positioning the electromagnet device 30 which will be described later on the floor surface thereof, while a pair of positioning projections is provided at a corner formed by the side wall of the base 2 and the partition wall 4. 8a and 8b are provided, and the positioning projection 8
On the floor surface of the base 2 located approximately in the middle of a and 8b, the support projection 8c
Is provided.

Further, the base 2 is provided with a conductive thin film on its entire surface by plating, vapor deposition or the like, and an appropriate number of earth terminals 9 which are electrically connected to the conductive thin film are projected from the lower surface thereof.
The isolation is improved.

The first contact mechanism portion 10 includes fixed contact terminals 11, 12, 13 protruding into the groove portion 5, and movable contact pieces 14 and 16 capable of coming into contact with and separating from the fixed contact terminals 11, 12, 12 and 13, respectively. The movable contact pieces 14 and 16 are respectively insert-molded, and the insulating sliders 15 and 17 slidably fitted into the guide grooves 3a and 3b of the partition wall 3 and the both ends 18a and 18b are connected to the insulating sliders 15 and 17, respectively. It has a three-pronged shape that can be slidably engaged with the rear end portion of 17, and has a connecting spring plate 18 whose central portion is clamped by an arm portion 43a of a card 40 described later.

The second contact mechanism portion 20 insert-molds the fixed contact terminals 21 and 22 protruding into the groove portion 6, the movable contact piece 23 that comes into contact with and separates from the fixed contact terminals 21 and 22, and the movable contact piece 23, Further, the insulating slider 24 is slidably fitted in the guide groove 4a of the partition wall 4.

The fixed contact terminals 11, 12, 13 and 21, 22 are, of course, insulated from the conductive thin film of the base 2.

The electromagnet device 30 includes a spool 31, an iron core 36, a yoke 37,
It comprises a coil 38 and coil terminals 39, 39.

The spool 31 has a coil 3 between the collars 32 and 33 provided at both ends thereof.
8 is wound, the iron core 36 is inserted into the hollow hole 31a, and both ends 36a and 36b thereof are projected.

The yoke 37 has the upright pieces 37a, 37b provided at one end thereof, the insertion hole 34a of the base portion 34 extending from the flange portion 32 of the spool 31,
The iron cores 36 are inserted into and protrude from 34b, respectively, and are made to face the magnetic pole portions 36a, which are one end portions of the iron cores 36, respectively. Further, the yoke 37 is a two-pronged upright piece provided on the other end side.
37c is fitted into a fitting hole provided in the base portion 35 to be projected, and the other end portion 36b of the iron core 36 is fixed to the standing piece 37c by caulking, welding or the like.

The coil terminals 39, 39 are inserted into the through holes 34c, 35b provided in the bases 34, 35, respectively, and the lower end portions of the coil terminals 39, 39 project from the lower surface of the base 2, and the coil terminals 39, 39 are provided at the upper end portions thereof.
The lead wire of is entangled and soldered.

The base portion 35 extending from the collar portion 33 has a card to be described later.
A support shaft 35a for rotatably supporting the 40 is integrally provided.

The contact driving card 40 is composed of an annular frame 41, and the frame 41 includes a movable block portion 42 and the movable block 42.
It is composed of arch-shaped connecting portions 43 and 44 extending from both end portions of the above, and a supporting portion 45 connected and integrated with the movable block 42 by the connecting portions 43 and 44.

The movable block 42 has movable holes 42a in which movable iron pieces 47a and 47b holding a permanent magnet 46 are stored and fixed.

The connecting portions 43 and 44 are provided with arm portions 43a and 44a on their outer tops, respectively. The arm portion 43a holds the above-mentioned connecting spring plate 18, while the arm portion 44a holds the L-shaped drive piece 51 described later. The part 51d is sandwiched.

Then, if the support hole 45a provided in the support portion 45 is fitted to the support shaft 35a of the electromagnet device 30, the movable iron piece 47a is positioned between the magnetic pole portion 36a of the iron core 36 and the standing piece 37a of the yoke 37. The movable iron piece 47b is located between the magnetic pole portion 36a of the iron core 36 and the upright piece 37b of the yoke 37, while facing each other so as to be contactable and separable.

The drive conversion unit 50 converts the rotational movement of the card 40 into a reciprocating movement and slides the insulating slider 24, and includes an L-shaped drive piece 51 bent into a substantially L-shape, a spring plate 52, and the base 2. A pair of positioning protrusions 8a, 8b provided and a supporting protrusion 8c
Consists of.

The L-shaped drive piece 51 is provided with a three-pronged engaging portion 51c, which is engageable with the above-mentioned insulating slider 24 and has a tip portion 51a protruding in the central portion, on one bent side and the other bent side. On the side, a sandwiching portion 51d having a straightly extending tip portion 51b is provided.

The spring plate 52 has a planar shape that can be bent and can be installed between the positioning protrusions 8a and 8b. When the spring plate 52 is installed between the positioning protrusions 8a and 8b, the rear corner of the L-shaped drive piece 51 can be removed. It is always pressed and hinged so as to be rotatable.

Therefore, after the insulating slider 24 is engaged with the engaging portion 51c of the L-shaped drive piece 51 and the center portion thereof is positioned at the corner portion of the support projection 8c, the holding portion 51d is held by the arm portion 44a of the card 40. Then, by bending the spring plate 52 and incorporating it between the positioning protrusions 8a and 8b, the L-shaped drive piece 51 is rotatably supported by the hinge. At this time, the tip portions 51a, 51b of the L-shaped drive piece 51
Can come into contact with the projections 4b and 2a provided on the base 2, respectively.

The grooves 5 and 6 are covered with a substantially L-shaped metal plate in plan view indicated by a chain double-dashed line in FIG. 1 to be magnetically shielded, and the base 2 is sealed with a cover (not shown).

Next, the operation of the high frequency relay 1 having the above configuration will be described.

FIG. 1 shows a neutral state. In the non-excited state, the card 40 is restored, and the magnetic force of the permanent magnet 46 causes the movable iron piece 47a to move to the iron core 3.
While being attracted to the magnetic pole portion 36a of 6, the movable iron piece 47b is attracted to the standing piece 37b of the yoke 37 to form a magnetic circuit. The movable contact piece 14 of the first contact mechanism section 10 is separated from the fixed contact terminals 11 and 12, and the movable contact piece 16 is also provided.
Is closed to the fixed contact terminals 12 and 13, while the movable contact piece 23 of the second contact mechanism section 20 is closed to the fixed contact terminals 21 and 22.

In the returned state, the tip portion 51 of the L-shaped drive piece 51 is
b is in pressure contact with the protrusion 2a provided on the side wall of the base 2.

Now, when the movable iron piece 47a repels the magnetic pole portion 36a of the iron core 36 and the coil 38 is excited so that the movable iron piece 47b repels the standing piece 37b of the yoke 37, the movable iron piece 47a repels the magnetic pole portion 36a, The movable iron piece 47b is attracted to the standing piece 37a of the yoke 37, repels the standing piece 37b of the yoke 37, and is attracted to the magnetic pole portion 36a of the iron core 36.

Therefore, the card 40 rotates clockwise about the support shaft 35a as a fulcrum in FIG. 1, and the movable iron pieces 47a and 47b move toward the yoke 37.
The magnetic pieces are attracted to the standing piece 37a and the magnetic pole portion 36a of the iron core 36 to form a magnetic circuit.

Then, as the card 40 rotates, the insulating sliders 15 and 17 are guided by the guide groove 3 via the connecting spring plate 18 held by the arm 43a.
Sliding along a and 3b, the movable contact piece 14 is fixed contact terminal
The movable contact piece 16 is separated from the fixed contact terminals 12 and 13 while closing the terminals 11 and 12.

On the other hand, as the card 40 rotates clockwise, its arm
The L-shaped drive piece 51 having the sandwiching portion 51d sandwiched by 44a rotates counterclockwise in FIG. 1 with the corner portion of the support projection 8c as a fulcrum.
The insulating slider 24 engaged with the engaging portion 51c is guided by the guide groove 4a.
Slide along the movable contact piece 23 and the fixed contact terminals 21, 2
Separate from 2.

When the excitation is released, the magnetic force of the permanent magnet 46 causes the card 40
Maintains its operating state.

In the operating state, the tip 51 of the L-shaped drive piece 51 is
a is in pressure contact with the protrusion 4b provided on the partition wall 4.

Next, when the coil 38 is excited in the opposite direction to the above, the card
40 rotates counterclockwise in FIG. 1 to return to the return state,
Even if the excitation is released, the return state is maintained.

In addition, the movable contact pieces 14, 16 and 23 are fixed contact terminals 11, 1
When 2, 13, 21 and 22 are not closed, the movable contact pieces 14, 16 and 23 are in contact with the protrusions provided in the grooves 5 and 6, respectively, so that high isolation can be obtained. .

When the matrix switch circuit described above is formed on the substrate in the high-frequency relay 1 having the above-mentioned configuration, it becomes as shown in FIG.

Therefore, in FIG. 3, for example, the input signal terminal
The high frequency signal input from A ₁ is output to the high frequency relay 1 located on the right side along the alternate long and short dash line via the movable contact piece 16 of the first contact mechanism section 10, and the high frequency relay 1 located on the right side. Outputs the input high-frequency signal laterally via the movable contact piece 16 of the first contact mechanism section.

The coil 38 of the high frequency relay 1 located on the upper left side
Is excited to rotate the card 40 to move the movable contact pieces 16 and 23.
Is separated from the fixed contact terminals 12, 13 and 21, 22, respectively, and when the movable contact piece 14 is closed to the fixed contact terminals 11 and 12, for example, the high frequency signal input from the input signal terminal A ₁ is, It is output to the output signal terminal B ₁ along the alternate long and short dash line via the movable contact piece 14.

The fixed contact terminals 11 and 21 may be connected inside the high frequency relay 1 or on the substrate.

According to the present embodiment, since a circuit orthogonal to the inside of the high frequency relay 1 is formed, even if the matrix switching circuit is formed by the high frequency relay 1, the wiring is not bent and the circuits of different signals come close to each other. Less often,
The circuit design becomes simple and high isolation can be obtained.

Moreover, since the first contact mechanism section 10 and the second contact mechanism section 20 are arranged so that their respective extension lines passing through the fixed contact terminals are orthogonal to each other, even if the matrix switch circuit is constructed, 3 High frequency relay 1 located on the upper left side in the figure
The fixed contact terminal 22 and the fixed contact terminal 11 of the high frequency relay 1 located therebelow constitute a circuit of the same type of signal, and there is no fear of signal leakage.

Therefore, a fixed contact terminal that constitutes a circuit of different signals, for example, the fixed contact terminal 13 of the high frequency relay 1 located on the upper left side in FIG. 3, and the fixed contact terminal 11 of the high frequency relay 1 located on the right side of this. Since it is adjacent to each other, it is necessary to arrange the high-frequency relays 1 in parallel at a constant interval l ₄ , but the high-frequency relays 1 located in the upper and lower parts in FIG. 3 have an interval l ₃ (<
l ₄ ) can be installed side by side, and there is an advantage that mounting density can be increased.

Further, in this embodiment, the contact drive card 40 is the base 2
Since it rotates parallel to the floor surface of the device, there is an advantage that the device can be made thin.

In addition, in the above-mentioned embodiment, the case where the first contact mechanism section 10 and the second contact mechanism section 20 are independently provided is shown, but the present invention is not limited to this, and for example, the first contact mechanism section in the above-mentioned embodiment. Of course, the fixed contact terminal 11 of 10 and the fixed contact terminal 21 of the second contact mechanism section 20 may be shared by one fixed contact terminal.

EFFECTS OF THE INVENTION As is apparent from the above description, according to the present invention, an extension line passing through the fixed contact terminal of the first contact mechanism portion of the high-frequency relay and an extension line passing through the fixed contact terminal of the second contact mechanism portion. Since they are arranged so as to be orthogonal to each other, an orthogonal circuit is formed inside the high frequency relay. As a result, even if a high-frequency matrix switch circuit is configured with the high-frequency relay according to the present invention, the wiring does not bend when connecting the high-frequency relays to each other, and the circuits for different types of signals are less likely to approach each other. It becomes easy and high isolation can be secured.

Moreover, since the first contact mechanism portion and the second contact mechanism portion are arranged so as to be orthogonal to each other and have a substantially L-shape, there is a portion where the fixed contact terminal is not provided on the base surface. For this reason, the fixed contact terminals forming the circuits of different signals are less likely to come close to each other, and the high frequency relay can be closely mounted. As a result, there is an effect that the packaging density of the high frequency relays on the substrate is increased.

[Brief description of drawings]

1 to 3 show an embodiment according to the present invention,
1 is a plan view, FIG. 2 is an exploded perspective view, FIG. 3 is an explanatory view of use, FIGS. 4 and 5 show an embodiment of a conventional example, FIG. 4 is a logic circuit diagram, and FIG. FIG. 5 is a use explanatory diagram. 2 ... Base, 10 ... First contact mechanism part, 11,12,13 ... Fixed contact terminal, 14,16 ... Movable contact piece, 20 ... Second contact mechanism part, 21,22 ... Fixed contact Terminal, 23 ... Movable contact piece, 30
...... Electromagnetic device, 40 ...... Contact drive card.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location H01H 51/30 A 9177-5G

Claims (2)

[Claims] 1. A high-frequency relay, which is a contact drive card driven based on excitation and demagnetization of an electromagnet device, wherein a first contact mechanism section and a second contact mechanism section arranged on a base surface are opened and closed in conjunction with each other. A high frequency relay, wherein an extension line passing through a fixed contact terminal of the first contact mechanism section and an extension line passing through a fixed contact terminal of the second contact mechanism section are arranged so as to be orthogonal to each other. 2. At least one of the first contact mechanism section and the second contact mechanism section has at least 3 parts.
The high frequency relay according to claim 1, wherein the fixed contact terminals of the book are arranged in series.