JPH0612958A - High frequency relay - Google Patents

Abstract

PURPOSE:To provide a high frequency relay formed small in size and excellent in a high frequency characteristic. CONSTITUTION:The central part of a contact spring 22 is molded by a supporter 27, composed of insulating material, and integrally formed. Teflon coating or parylene coating is applied to a surface of an armature 21 or iron core 51, to make insulation between the armature 21 and the iron core 51. In order to make insulation between the armature 21 and a contact, the contact spring 22 is insulated by the supporter 27 of molded unit, to connect the armature 21 to a block integrally formed with these contact spring 22 and supporter 27. As the connecting method, double molding by simultaneous molding is performed. An armature block 2 is arranged sideward of a coil block 5, to attain miniaturization.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin high frequency relay.

[0002]

2. Description of the Related Art FIG. 7 is an exploded perspective view of a conventional high frequency relay of this type, which is composed of a body block 1, a coil block 5, an armature block 2 and the like. An insulating wall 15 is provided upright in the center of an insulating base 17 that constitutes the body block 1, and a permanent magnet 6 is arranged at the bottom of one storage recess 11 of the insulating wall 15 and the other one. The coil block 5 is arranged in the storage recess 16.

The coil block 5 includes a coil bobbin 52,
The coil bobbin 52 has a substantially U-shaped iron core 51 inserted therein, and a coil 53 wound around the coil bobbin 52 and the like. The armature block 2 is composed of a magnetic armature 21, a conductive contact spring 22 fixed to the upper surface of the armature 21, a movable contact 23 fixed to the lower surface of the tip of the contact spring 22, and the like. ing. The armature block 2 is arranged on the upper surface side of the permanent magnet 6, and the body block 1 is covered with a cover 3.

Here, the armature 21 has a swing fulcrum 24 projecting from the center of both side surfaces, and the swing fulcrum 24 is loosely fitted into the fulcrum holding recess 12 of the body block 1 to form a storage recess. It is housed in 11 so as to be swingable. The contact spring 22 formed of a spring material and fixed to the armature 21 at the center has spring pieces 25 on both sides, and the movable contact 23 is fixed to the lower surface of the tip of the spring piece 25. .
A hinge spring 26 having a substantially T-shape projects from the end of the center of the contact spring 22, and the hinge spring 26 is connected to a contact terminal 41 as a central common terminal.

The tip terminal 41 is implanted in the side wall of the body block 1, and a recess 13 is formed in the upper portion of the side wall. The base of the contact terminal 41 is exposed on the bottom surface of the recess 13, and the exposure is performed. A hinge spring 26 is welded and connected to the portion.

[0006]

Here, in the conventional ultra-thin high-frequency relay, as shown in FIG. 7, the coil block 5 and the armature block 2 are laterally arranged in the body block 1 and connected. The contact spring 22 of the pole block 2 is joined by crimping or welding through the fixing dowel 18.

However, in this case, the contact portion, the armature 21,
Since the iron core 51 has the same potential, there is a problem that a high-frequency signal leaks largely. The present invention has been made in view of the above points, and an object thereof is to provide a small-sized high-frequency relay having excellent high-frequency characteristics.

[0008]

SUMMARY OF THE INVENTION According to the present invention, an armature block having a coil block and a contact portion is arranged in a storage recess on both sides of an insulating wall formed in a base of a body block,
In the armature block, the armature and the contact spring are vertically integrated via a molded body. Further, in claim 2, the armature block is formed by secondary molding.

Further, in claim 3, the surface of the armature or the iron core is coated with a thin film for insulation.

[0010]

Since the coil block and the armature block are laterally arranged in the base, the relay can be made thin, and the armature block can be formed by forming the armature and the contact spring. High-frequency signals can be prevented from leaking by being integrated through the upper and lower sides, so that a compact relay with excellent high-frequency characteristics can be obtained, and performance can be improved in the ultra-high frequency band. .

Further, in the second aspect, since the armature block is formed by the secondary molding, the insulation between the armature and the contact can be further improved. Furthermore, in the third aspect, the surface of the armature or the iron core is coated with an insulating thin film, whereby insulation between the armature and the iron core can be achieved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the entire high frequency relay will be described. As shown in FIG. 1, it is composed of a body block 1, an armature block 2 and a coil block 5 housed in the body block 1, and a cover 3 fitted on the body block 1.

The body block 1 includes a terminal block 4, a coil block 5 and a permanent magnet 6 shown in FIGS. 6 (a) to 6 (c).
Are integrally formed by molding with a synthetic resin.
As shown in FIG. 6D, the coil block 5 has a coil bobbin 52 made of synthetic resin formed from the central piece of the substantially U-shaped iron core 51 to the bases of both side pieces.
2 is formed by winding a coil 53 as shown in FIG. The coil bobbin 52 is formed with a winding portion around which the coil 53 is wound on both left and right sides, and the coil 53 is wound around each winding portion in reverse winding. And
The coil bobbin 52 is provided with a connection pin 54 for connecting the ends of the coil 53 and a fixing piece 55 integrally connected to the connections 54 at the left and right ends.

The terminal block 4 has an upper side 3 in FIG. 6 (a).
By punching a thin plate material (hoop material) 44, a plurality of contact terminals 41 and three coil terminals 42 on the lower side are simultaneously formed in the lateral direction in FIG. g)
The terminals 41 and 42 are bent and separated in a molded state of the synthetic resin shown in FIG. A fixed contact 43 is provided at the base end of the contact terminals 41 on both sides molded in synthetic resin.
Are fixed together.

The coil block 5 is placed on the terminal block 4 as shown in FIG.
Of the fixing piece 55 projecting from both ends of the coil terminal 42 on the left and right sides of the fixing piece 55, which are molded into the synthetic resin by welding, and the central connecting pin 54 is connected to the central end of the coil terminal 42. Is connected to the terminal block 4 by welding.

The permanent magnet 6 has a flat plate shape, both ends of which are opposed to the magnetic pole are magnetized to have the same pole, and the middle portion is magnetized to have a different pole. As shown in FIG. Iron core 5
It is attached by welding between both side pieces of No. 1. The manufacturing process of the body block 1 will be briefly described. The terminal block 4, the coil block 5, and the permanent magnet 6 are manufactured separately in different processes. Here, the terminal block 4 is formed by punching the thin plate material 44 as described above. The coil block 5 is shown in FIG.
, A coil bobbin 52 is formed on the iron core 51,
The coil 53 is wound and formed into blocks as shown in FIG.

Next, the coil block 5 and the permanent magnet 6 are integrated. This integrated block is integrated with the terminal block 4 as shown in FIG. And FIG.
Mold with a synthetic resin as shown in FIG. here,
In the case of molding with synthetic resin, the synthetic resin injection port (gate port) is provided between the coil block 5 and the permanent magnet 6 on the lower surface side. The mark 19 of the injection port left after molding is shown in FIG.
It shows in (a). The reason for doing this is to prevent the injection pressure of the synthetic resin from being directly applied to the coil 53 during molding, and thus the disconnection of the coil 53 can be prevented.

Therefore, in order to prevent the disconnection of the coil 53, it is not necessary to take a protective measure such as taping the coil 53, and the factor that increases the manufacturing cost can be eliminated. After that, the terminals 41 and 42 are bent and cut to manufacture the body block 1 shown in FIG. The above manufacturing is performed by an automatic assembly process.

In the body block 1, the permanent magnets 6,
A storage recess for accommodating the armature block 2 corresponding to the permanent magnet 6, which is molded with a synthetic resin except for both side pieces of the iron core 51 in contact with the armature block 2, the tip ends of the terminals 41 and 42, and the fixed contact 43. A place 11 is formed. If manufactured in this way, the coil block 5 is completely molded (molded and sealed) with the synthetic resin, so that the insulation distance from the contact can be secured, and even when it is formed in an ultra-small size, the coil block 5 has a high height. Can withstand pressure. In addition, the position of the contact point and the position of the coil block 5 are determined by the mold, the positional accuracy is improved, and the variation in characteristics can be reduced.

Further, when the terminal block 4 has the structure shown in FIG. 6A, the coil terminal 42 and the contact terminal 42 are arranged along both sides of the body block 1 in the width direction, and the coil terminal 42 and the contact terminal 42 are arranged. 41 can be most distant from each other, and therefore the terminal coil 42 and the contact terminal 41
It is possible to secure an insulation distance from Next, the configuration and manufacturing method of the armature block 2 will be described. Figure 1
As shown in FIG. 3, the contact spring 22 that constitutes the armature block 2 is formed in a flat plate shape, and the central portion thereof is molded and integrated with a support body 27 made of an insulating material.

The spring pieces 2 are provided on both sides of the contact spring 22.
5 is formed, the spring piece 25 is formed into a bifurcated shape by a slit, and the movable contact 23 is formed on the lower surface of the tip.
Is stuck. Further, a hinge spring 26 protruding laterally is integrally formed at the center of the contact spring 22. The armature 21 has a swinging fulcrum 24 formed at its end as in the conventional case, a through hole 28 penetrating vertically is formed in the center, and positioning dowels 29 project on both sides of the through hole 28. It is set up. Here, in order to insulate the armature 21 from the iron core 51, the surface of the armature 21 or the iron core 51 is coated with Teflon coating or parylene coating.

Further, in order to insulate the armature 21 from the contacts, the contact spring 22 is connected to the support 27 of the molded body as described above.
Then, the armature 21 is joined to a block in which the contact spring 22 and the support 27 are integrated with each other. As the joining method, simultaneous molding, heat caulking, bonding, and contact spring 22
There is an integral simultaneous molding of the armature 21 and the like. Therefore, in the case of simultaneous molding, double molding is performed.

The armature block 2 formed in this way is arranged laterally of the coil block 5 to reduce the size. That is, an ultra-thin high-frequency compatible relay can be formed, and the insertion loss is improved from 2.0 dB to 0.6 dB (at 1.8 GHz). The cover 3 has a box-like shape with an open lower surface, and has two corners on the upper surface.
Cylindrical tube portion 31 communicating with the inside for performing the next sealing
(See FIG. 4) are formed. A pressing piece 33 shown in FIG. 5A is provided so as to project from the position of the rotation axis of the armature block 2 on the inner bottom surface of the cover 3, and this pressing piece 33 prevents rattling of the armature block 2 in the vertical direction. To prevent.

The cover 3 is fitted to the body block 1 to which the armature block 2 is attached, and the air inside is evacuated through the tubular portion 31, and the tubular portion 31 is sealed with an adhesive, or the tubular portion 31 is removed. Secondary sealing is performed by heat welding. This completes the relay. In addition, in FIG. 1, the tubular portion 31 is omitted for convenience. Next, the operation of the above relay will be described. In this relay, when one of the coils 53 is selectively energized, one end of the armature 21 is attracted to one side piece of the iron core 51 according to the direction of magnetization of the iron core 51, and the armature block 2 When the armature swings, the armature 21 is attracted to the side piece of the iron core 51.

At this time, one spring piece 25 of the contact spring 22
The movable contact 23, which is fixedly attached to, contacts the fixed contact 43.
When the power supply to the coil 53 is stopped in this state, the closed magnetic circuit is maintained as it is due to the magnetic force of the permanent magnet 6, and the state where the armature 21 is in contact with one of the iron cores 51 is maintained. When the other coil 53 is energized, the armature 21 is attracted to the other side piece of the iron core 51, and the movable contact 23 fixed to the other spring piece 25 contacts the fixed contact 43. Even in this state, after stopping the energization, the current state is maintained and so-called bistable operation is performed.

[0026]

As described above, according to the present invention, the armature block having the coil block and the contact portion is arranged in the storage recesses on both sides of the insulating wall formed in the base of the body block, and the armature block is provided. Since the armature and the contact spring are integrated vertically through the molded body, by horizontally disposing the coil block and the armature block in the base, the relay can be configured to be thin, Moreover, since the armature block and the armature and the contact spring are integrated in the vertical direction through the molded body, leakage of high frequency signals can be prevented, and therefore a compact relay with good high frequency characteristics can be obtained. Moreover, it is possible to improve the performance in the ultra-high frequency band.

Further, in the second aspect, since the armature block is formed by the secondary molding, the insulation between the armature and the contact can be further improved. Furthermore, in the third aspect, the surface of the armature or the iron core is coated with an insulating thin film, whereby insulation between the armature and the iron core can be achieved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an entire relay according to an embodiment of the present invention.

FIG. 2 (a) is a plan view of the armature block of the above,
(B) is a fractured side view, (c) is a rear view, and (d) is a fractured front view.

FIG. 3 (a) is an assembly diagram of the armature block of the above,
(B) is a perspective view of the entire armature block.

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

5A is a sectional view of the same as above, and FIG. 5B is a cutaway front view.

FIG. 6 is an explanatory view showing a manufacturing process of the above body block.

FIG. 7 is an exploded perspective view of a conventional relay.

[Explanation of symbols]

 1 Body Block 2 Armature Block 5 Coil Block 6 Permanent Magnet 21 Armature 22 Contact Spring 25 Spring Piece 26 Hinge Spring 27 Support

[Procedure amendment]

[Submission date] November 9, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art FIG. 8 is an exploded perspective view of a conventional high frequency relay of this type, which is composed of a body block 1, a coil block 5, an armature block 2 and the like. An insulating wall 15 is provided upright in the center of an insulating base 17 that constitutes the body block 1, and a permanent magnet 6 is arranged at the bottom of one storage recess 11 of the insulating wall 15 and the other one. The coil block 5 is arranged in the storage recess 16.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

Here, in the conventional ultra-thin high-frequency relay, as shown in FIG. 8 , the coil block 5 and the armature block 2 are laterally arranged in the body block 1 and connected. The contact spring 22 of the pole block 2 is joined by crimping or welding through the fixing dowel 18.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

SUMMARY OF THE INVENTION According to the present invention, an armature block having a coil block and a contact portion is arranged in a storage recess on both sides of an insulating wall formed in a base of a body block,
In the armature block, the armature and the contact spring are vertically integrated via a molded body. Further, in claim 2, the armature block is formed by double molding.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

According to the second aspect of the present invention, the armature block is formed by double molding, so that the assembling accuracy can be further improved. Furthermore, in the third aspect, the surface of the armature or the iron core is coated with an insulating thin film, whereby insulation between the armature and the iron core can be achieved.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

The spring pieces 2 are provided on both sides of the contact spring 22.
5 is formed, the spring piece 25 is formed into a bifurcated shape by a slit, and the movable contact 23 is formed on the lower surface of the tip.
Is stuck. Further, a hinge spring 26 protruding laterally is integrally formed at the center of the contact spring 22. The armature 21 has a swing fulcrum 24 formed at its end as in the conventional case, and a double molding resin penetrating vertically is filled and molded in the center .
Through holes 28 are provided for the purpose of positioning, and positioning dowels 29 are provided on both sides of the through holes 28, respectively. Here, in order to insulate the armature 21 from the iron core 51, the surface of the armature 21 or the iron core 51 is coated with Teflon coating or parylene coating.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

The armature block 2 formed in this way is arranged laterally of the coil block 5 to reduce the size. That is, it is possible to form an ultra-thin relay compatible with high frequency, and the insertion loss is about 2.0 dB.
It improved to about 0.6 dB (at 1.8 GHz). The cover 3 has a box-like shape with an open lower surface, and has a cylindrical tubular portion 31 that communicates with one interior corner of the upper surface for secondary sealing.
(See FIG. 4) are formed. A pressing piece 33 shown in FIG. 5A is provided so as to project from the position of the rotation axis of the armature block 2 on the inner bottom surface of the cover 3, and this pressing piece 33 prevents rattling of the armature block 2 in the vertical direction. To prevent.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

At this time, one spring piece 25 of the contact spring 22
The movable contact 23, which is fixedly attached to, contacts the fixed contact 43.
When the power supply to the coil 53 is stopped in this state, the closed magnetic circuit is maintained as it is due to the magnetic force of the permanent magnet 6, and the state where the armature 21 is in contact with one of the iron cores 51 is maintained. When the other coil 53 is energized, the armature 21 is attracted to the other side piece of the iron core 51, and the movable contact 23 fixed to the other spring piece 25 contacts the fixed contact 43. Even in this state, after stopping the energization, the current state is maintained and so-called bistable operation is performed. Toko
In the embodiment shown in FIG. 1, the two-turn coil type is used.
However, by removing the collar part in the center of the coil in FIG.
Ill specifications and a rejuvenating plate on one end of the armature
For high frequency relays with single (monostable) operation
Of course, the configuration of the present invention can be used.
It Further, as shown in FIGS. 7A and 7B, the coil block
The structure of the present invention is also applicable to a structure in which 5 is not double-molded.
It can also be applied. In addition, in FIG. 7 (a) (b)
1 to 6 are designated by the same reference numerals.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

According to the second aspect, the armature block is formed by double molding, so that the assembling accuracy can be further improved. Furthermore, in the third aspect, the surface of the armature or the iron core is coated with an insulating thin film, whereby insulation between the armature and the iron core can be achieved.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an entire relay according to an embodiment of the present invention.

FIG. 2 (a) is a plan view of the armature block of the above,
(B) is a fractured side view, (c) is a rear view, and (d) is a fractured front view.

FIG. 3 (a) is an assembly diagram of the armature block of the above,
(B) is a perspective view of the entire armature block.

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

5A is a sectional view of the same as above, and FIG. 5B is a cutaway front view.

FIG. 6 is an explanatory view showing a manufacturing process of the above body block.

FIG. 7A is a breakdown of the entire relay according to another embodiment of the present invention.
A front view in section, (b) is a sectional view .

FIG. 8 is an exploded perspective view of a conventional relay.

[Explanation of reference numerals] 1 body block 2 armature block 5 coil block 6 permanent magnet 21 armature 22 contact spring 25 spring piece 26 hinge spring 27 support

[Procedure Amendment 11]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Added

[Correction content]

[Figure 8]

Claims (3)

[Claims] 1. An armature block having a coil block and a contact portion is disposed in a storage recess formed on both sides of an insulating wall formed in a base of a body block, and the armature block includes an armature and a contact spring. A high-frequency relay characterized by integrating the above and below via a molded body. 2. The high frequency relay according to claim 1, wherein the armature block is formed by secondary molding. 3. A high frequency relay according to claim 1, wherein the armature or the core is coated with a thin film for insulation.