JP2001155613A - High frequency relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high frequency relay that the adjustment of the impedance is made by shaping of a single part with the other parts commonly used with different impedance specifications in design changes of impedance properties. SOLUTION: A moveable contact spring plate 16 corresponding to the spciti cations of 75Ω has a part inserted in the spring support 24 of a card 4, of which upper edge is provided with protrusions 35, while a moveable contact spring plate 16 corresponding to the specifications of 50Ω has a part inserted in the spring support 24 of a card 4, of which upper edge is provided with a notch 38, and which has a longer groove length forming two legs of the movable contact spring prate compared with the one of the specifications of 75Ω.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A conventional high-frequency relay has a structure shown in FIG.

In this conventional example, a base 100 on which a relay mechanism is disposed and a case 1 attached to the base 100 are provided.
01, an electromagnet block 105 including a yoke 102, a coil 103, and an iron core 104; a card block 106;
The shield box 107 includes movable contact spring plates 108 and 108 provided on the card block 106 side, fixed contact terminals 109a to 109d, and the like. The shield box 107 is formed by bending and punching a single metal plate. Form the box part and the ground terminals 110. In addition, 111 is a balance spring.

The card block 106 of this conventional example has a pair of armatures 114, in which a permanent magnet 113 is interposed in a through hole formed at one longitudinal end of a substantially rectangular parallelepiped card 112.
114, one armature 114 is positioned between one pole face of the iron core 104 of the electromagnet block 105 and the tip of one end of the yoke 102, and the other armature 114
Is mounted on the electromagnetic block 105 so as to be located between the other magnetic pole surface of the iron core 104 and the tip of the other end of the yoke 102.

[0005]

By the way, in the above-mentioned conventional example, in the case of manufacturing one having specifications of, for example, 75Ω and 50Ω in accordance with the frequency band of the signal current to be opened and closed,
The shape of the shield box 107, the movable contact spring plate 108, and the fixed contact terminals 109a to 109b related to the characteristic impedance of the transmission line correspond to the characteristic impedance in order to set the characteristic impedance of the transmission line respectively. However, these parts could not be shared with those having the specifications of 50Ω and 75Ω.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to change the setting of the characteristic impedance among the components related to the characteristic impedance of the transmission line by using only one component shape. Accordingly, it is an object of the present invention to provide a high-frequency relay in which other components can be shared between components having different impedance specifications.

Another object of the present invention is to provide a high-frequency relay that can easily be adjusted after assembling components.

[0008]

According to the first aspect of the present invention, a shield space is provided on a base where a ground contact portion electrically connected to a ground terminal and a fixed contact portion of a fixed contact terminal are arranged on a base. A movable contact spring plate is disposed so as to be able to contact and separate from the fixed contact portion and to come into contact with the ground contact portion when being separated from the fixed contact portion, and to support the movable contact spring plate. In a high-frequency relay in which an electromagnet block that drives a card that is mounted on the base outside the shielded space, the characteristic impedance of the entire transmission path is compared with the specified impedance, either a shield plate that forms the shielded space or a movable contact spring plate. It is characterized by matching by changing only the shape.

According to a second aspect of the present invention, in the first aspect of the present invention, the characteristic impedance is set by the shape of the shield plate.

According to a third aspect of the present invention, in the first aspect of the present invention, the characteristic impedance is set by a shape of the movable contact spring plate.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, an opening is provided in a side wall of the base facing a portion requiring adjustment of operating characteristics.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments.

(Embodiment 1) In this embodiment, as shown in FIGS. 2 and 3, a base 1 made of a synthetic resin molding material, a relay mechanism disposed on the base 1, and a base 1 attached to the base 1. And a box-shaped case 2 made of a synthetic resin molding agent.

An electromagnet block 5, which is a main component of the relay mechanism, includes a coil bobbin 7 around which an exciting coil 6 is wound.
An iron core 8 inserted through the center through-hole of the coil bobbin 7 and one end of the iron core 8 protruding from one end side of the coil bobbin 7 are caulked and fixed to a front plate surface, and bent from this end so as to be parallel to the coil bobbin 7. The yoke 9 is formed by extending the tip of the bent piece to the other end of the coil bobbin 7.

The electromagnet block 5 includes a coil bobbin 7
The lower part of the coil terminals 10 and 10 provided on the base 1 is disposed on the base 1 so as to protrude toward the lower surface side of the base 1 from the insertion hole 11 provided in the base 1 as shown in FIG.

The armature 12, which is attracted and driven when the electromagnet block 5 is excited, is formed of an iron piece bent in an L-shape. One arm 12a is opposed to the other end of the iron core 8 exposed at the other end of the coil bobbin 7. The inner corner of the bent portion is disposed so as to be rotatable against the tip of the bent piece of the yoke 9. Further, the tip of the other piece 12b is brought into contact with a side surface of the card 4 described later.

The lower portion of the hinge spring 3 is press-fitted into a press-fitting groove 14 formed in a lower portion 13 of a side wall 25 provided at one end of the base 1 on the side where the armature 12 is provided. The outer corner of the bent portion of the armature 12 is pressed by the tip of the holding piece 3a extending obliquely, and the inner corner of the armature 12 is pressed against the yoke 9 and held. .

A partition 15 is provided on one upper side of the base 1 parallel to the portion where the electromagnet block 5 is disposed, and is separated from the portion where the electromagnet block 5 is disposed by the partition wall 15. The space above the base 1 surrounded by {circle around (1)} is a portion where the shield portion including the contact portion is disposed.

The shield portion is composed of two shield plates 16A and 16B arranged in parallel, and the base 1 extends along the inner surface of the side wall 15 at both ends of the shield portion.
As shown in FIG. 4 (a), the ribs 17 are disposed with both opposing surfaces of both ends of the shield plates 16A and 16B in contact with both side surfaces of each rib 17.

The ribs 17 are provided on the shield plate 16 of the base 1.
The positions of the shield plates 16A and 16B are determined by the molding accuracy of the ribs 17, and the shield plates 16A and 16B are in contact with the opposing surfaces. The shield plates 1A and 16B are not affected by variations in the thickness of the plates 16A and 16B.
The distance between the plate surfaces inside 6A and 16B can be set with high accuracy.

As shown in FIG. 4A, a position corresponding to the center position of the shield plates 16A and 16B and a position near each of the ribs 17 are located on a center line which bisects the shield plates 16A and 16B. The fixed contact terminals 19a, 19b, and 19c are respectively provided through holes 18 provided in the fixed contact terminals 19a to 19c, and the fixed contacts 20 of the fixed contact terminals 19a to 19c are set in a space surrounded by the shield plates 16A and 16B. Not.

At the upper end of each side wall 25 of the base 1 at both ends of the shield portion, the pivot shafts 21 provided at both ends of the card 4 driven by the armature 12 are supported. Thus, support portions 22, 22 for bridging the card 4 above the shield portion are formed.

The card 4 has movable contact spring plates 23A and 23B.
In order to reduce the influence on the impedance of the air and make it easy to match the characteristic impedance, it is made of a molded product using a synthetic resin molding material such as Teflon (dielectric constant 2.0) close to the dielectric constant of air. At both upper end surfaces, a pivoting shaft portion 21 is integrally formed, and at both lower end portions, spring support portions 24 which support the central portions of the movable contact spring plates 23A, 23B by insert molding are provided, respectively, and are provided above the shield portion provided portion. The movable contact spring plate 23
A, 23B are arranged between the shield plates 16A, 16B.

Here, the card 4 is bridged because the pivot shaft 21 is rotatably supported by the pivoting support portions 22 provided on the upper ends of the side walls 25 on both ends of the base 1. The positions of the movable contact spring plates 23A, 23B held by the spring support portions 24, 24 with respect to the upper surface of the base 1 by insert molding are set with high accuracy.

As shown in FIGS. 5 (a) and 5 (b), the rotating pivot 21 has a shaft 21a having a circular front section at the front end, and a lower front section substantially at the back of the shaft 21a. An inverted triangular rotation fulcrum 21b is integrally formed, and the lower end surface of the rotation fulcrum 21b is formed into an arc-shaped curved surface extending over both side surfaces so that the lowermost position thereof coincides with the height of the center of the shaft 21a. .

On the other hand, the rotation support portion 22 is formed along the inner side surface of the side wall 25 and supports the rotation fulcrum portion 21b at the upper end surface, and the upper end portion of the side wall 25 continuous with the support stage 22a. And a square hole 22b having an open upper end. The distance between the inner surfaces on both sides of the square hole 22b is the same as the diameter of the shaft portion 21a. The distance is slightly larger than the radius of the shaft 21a so that a gap is formed between the lower end and the bottom of the shaft 21a.

The two movable contact spring plates 23A and 23B supported by the respective spring supporting portions 24 of the card 4 by insert molding are arranged on both sides of a line connecting the fixed contact terminals 19a to 19c. Both ends of the first movable contact spring plate 23A are movable contacts that contact and separate from one surface of the fixed contact 20 of the central fixed contact terminal 19a and one surface of the fixed contact 20 of the fixed contact terminal 19b at one end. , And both ends of the second movable contact spring plate 23B are opposed to the other surface of the fixed contact 20 of the central fixed contact terminal 19a and the other surface of the fixed contact 20 of the fixed contact terminal 19b at the other end. The movable contacts make and break contact with each other, and the contact and separation operations are performed by the rotation of the card 4.

The shield plates 16A and 16B are connected to the spring support portions 24 of the movable contact spring plates 23A and 23B on the side close to the shield plates 16A and 16B, respectively.
Is formed by bending the escape portion 26 to escape from the center by bending a portion between one end from the center in the opposite direction,
The flat surfaces of the shield plates 16A and 16B on both sides of the escape portion 26 constitute a ground contact portion that comes into contact when both ends of the movable contact spring plates 23A and 23B are separated from the fixed contact 20 and moved.

Each of the shield plates 16A and 16B has the same shape, and has two ground terminals 27a and 27b, respectively.
Are formed integrally (see FIGS. 6 and 7). The distance from each end of each of the shield plates 16A and 16B to the nearest ground terminal is set to λ / 30 or less of the wavelength of the signal to be opened and closed so that the antenna effect does not occur.

Further, the shield plates 16A and 16B are the base 1
Fixed contact terminals 19a, 19b or 1
9c, a ground terminal 27a is formed at one end of a portion where the escape portion 26 is formed, and the ground terminal 27a is perpendicular to the inside of the lower end of the portion where the escape portion 26 is formed. The lower end of the hanging piece 28b is bent at a right angle further below the tip of the wide piece 28a which is bent and extended so that its tip is located on a straight line connecting the fixed contact terminals 18a to 18c when disposed on the base 1. It consists of a thin plate piece that extends further down from one end. The other ground terminal 27b is bent at a right angle inward from a position outside the escape portion 26 near the other end of the portion forming the escape portion 26, and the tip thereof is fixed to the fixed contact terminals 18a to 18c when disposed on the base 1.
Wide piece 28 extended so as to be located on a straight line connecting
The hanging piece 28 bent at a right angle further below the tip of a '
It is made of a narrow plate piece that further extends downward from one end of the lower end of b ′.

The thus formed shield plate 16A,
16B is arranged symmetrically on the base 1 so that the ground terminals 27a and 27b are connected to the central fixed contact terminal 19a,
It can be arranged between the fixed contact terminals 19b or 19c at the end.

When disposing the shield plates 16A and 16B at the shield portion, the opposing surfaces of the two end portions are positioned in contact with the side surfaces of the ribs 17 and 17 as described above. In addition, each of the ground terminals 27a, 2
Each of the ground terminals 27a, 27b is projected to the lower surface side of the base 1 through an insertion hole 29 penetrating through the base 1 corresponding to the width of the hanging pieces 28b, 28b 'integrally forming the 7b. Or 28b 'is inserted into the insertion hole 29.

Then, as described above, the shield plates 16A, 1
After arranging the 6B at the shield portion arranging portion, the pivot support portions 22 of the side walls 25, 25 at both ends of the base 1 rotatably support the pivot portions 21 at both ends of the card 4 so that the card 4 can be moved. By arranging the movable contact spring plate 23A between the fixed contact terminals 19a and 19b and the escape portion 26 of the shield plate 16A and arranging the movable contact spring plate 23B with the fixed contact terminal 19a by arranging the bridge above the shield arrangement portion. , 19c and shield plate 16
A can be disposed between the A and the escape portion 26.

When the card 4 is arranged on a bridge, the side wall 25
The shaft portion 21a is fitted into the square hole 22b of the side rotation support portion 22 from the upper end opening, and the rotation fulcrum portion 21b is placed on the upper end surface of the fulcrum base 22a as shown in FIG. Is bridged between both side walls of the base 1. Thus, the support in the horizontal direction is shared by the square hole 22 and the shaft portion 21a, and the vertical support is shared by the fulcrum base 22a and the rotation fulcrum portion 21b, and the center of the shaft portion 21a and the upper end surface of the fulcrum base 22a. By matching the positions, it is possible to more reliably support the pivot 21 as compared with a case where the pivot shaft 21 is supported at one place. Further, since the lower end of the shaft portion 21a is floating above the bottom of the square hole 22b, burrs generated when the base 1 is formed can be released.

The lower side surface of the card 4 provided on the bridge is constantly biased by the return spring 31 in the direction of the shield plate 16A. The return spring 31 press-fits the base 31 a into a press-fitting groove 32 formed on one inner surface of the side wall 36 of the base 1.
The tip of a spring piece 31b extending from the upper end of the upper part a toward the shield plate 16B resiliently contacts the lower side surface of the card 4 located above the upper end of the shield plate 16B. The card 4 is rotated about the portion 21 so that both ends of the inner movable contact spring plate 23A abut against plate surfaces near both ends of the escape portion 26 of the shield plate 16A, and both ends of the outer movable contact spring plate 23B. The portions are brought into contact with the fixed contacts 20, 20 of the fixed contact terminals 19a, 19c. The movable contact spring plate 23A,
The portions constituting the movable contact at both ends of 23B are divided into two parts.

Here, as shown in FIG.
The end of the other piece 12b of the armature 12 contacts the side surface of the card 4 at the same position on the opposite side of the side surface of the card 4 pressed by 1b. The pressed parts face each other and balance the force
Therefore, the relay operation is stabilized. In addition, as shown in FIG.
The friction between the spring piece 31b and the other piece 12b is reduced by reducing the displacement of the part that is in contact with the other piece 12b.

Now, the card 1 including the electromagnet block 5, the shield plates 16A and 16B, the fixed contact terminals 19a to 19d, the movable contact spring plates 23A and 23B on the base 1, the armature 1
2, after the members of the relay mechanism such as the hinge spring 3 and the return spring 31 are disposed, when the spring pressure of the return spring 31 and the hinge spring 3 is adjusted, the side wall of the base 1 on which the springs 31 and 3 face. This can be easily performed through the openings 25a of the 25 and the openings 36a of the side wall 36.

After the spring pressure adjustment is completed, the side walls 2 at both ends of the base 1
5 and the side walls 36 on both sides so as to fit inside.
Then, if the case 2 is attached, a desired high-frequency relay is completed.

By the way, the high-frequency relay of the present embodiment has a characteristic impedance of the transmission line in accordance with the specification of 75 Ω (for opening and closing video signals and the like) and the specification of 50 Ω (for opening and closing wireless communication signals). Related fixed contact terminals 19a to 19c, movable contact spring plates 23A, 23
B, of the shield plates 16A and 16B, the movable contact spring plate 2
By changing the shapes of 3A and 23B, the characteristic impedance is matched with the specified impedance.

FIG. 1A is a view 75 used in this embodiment.
FIG. 1B is a front view of the movable contact spring plate 16 corresponding to the Ω specification, and FIG. 2B is a front view of the movable contact spring plate 16 corresponding to the 50Ω specification used in the present embodiment.
The movable contact spring plate 16 corresponding to the specification has a projection 35 protruding from the upper edge of a portion to be inserted into the spring support portion 24 of the card 4 and a notch 38 is provided at the center of the lower edge. The contact spring plate 16 has a notch 38 formed on the upper edge instead of the projection 35 of the portion inserted into the spring support portion 24 of the card 4, and the length of the groove for dividing the movable contact portion into two forks is set to 75Ω. It is longer than the one.

The movable contact spring plate 16 is insert-molded, and the card 4 held on the spring supporting portion 24 is selected and assembled at the time of assembling, so that the specification of the high-frequency relay can be reduced to five.
The specification can be 0Ω or 75Ω. Since the shape of the portion that goes out of the spring support portion 24 is the same in both the 50Ω specification and the 75Ω specification, the molding die of the card 4 including the spring support portion 24 can be used for any specification.

The ceiling surface of the case 2 is provided with two pairs of rotation support portions 34 each of which fits into two recesses 34 provided on the upper end surface of the card 4. Each pair is case 2
The lower portions of the pair of rotation support portions 34 in the longitudinal (both ends) direction of the case 2 fit into the corresponding recesses 37 even when the two sides of the case 2 are attached to the base 1 in opposite directions. I have. The height of the bottom of the concave portion 37 on the card 4 side is the same as the position of the lower end of the rotation fulcrum 21b of the rotation pivot 21 and when the case 2 is attached. The rotation support portion 34 fits into the concave portion 37, and supports the card 3 rotatably not only from the base 1 side but also from the case 2 side, and stabilizes the rotation operation of the card 4 regardless of the mounting direction of the relay. To stabilize the high frequency characteristics. The bottom of the recess 37 is formed in an arcuate surface so that the card 4 can rotate in both directions in a state in which the card 4 is in contact with the lower surface of the rotation support portion 34.

The high-frequency relay of this embodiment configured as described above has fixed contact terminals 19a to 19c projecting from the lower surface of the base 1 to the outside, ground terminals 27a, 27b,.
In the state shown in FIG. 1 in which the coil terminals 10 and 10 are extended downward, the through-hole type is mounted on a printed circuit board. However, if each is bent outward at a right angle, it can also be used as a surface cloak type. And in this embodiment,
Fixed contact terminals 19a to 19c which correspond to terminal portions to be mounted on a circuit pattern surface of a printed circuit board as a surface cloak type
19c, ground terminals 27a, 27b ..., coil terminal 1
The cross-sectional shapes of the portions 0 and 10 are the same so that the bending accuracy does not vary between the terminals when bending in accordance with the surface cloak type. That is, any terminal can be bent with high accuracy.

Next, the operation of the high-frequency relay of the present embodiment configured as described above will be described.

First, when the electromagnet block 1 is not energized, the card 4 is rotated in the direction to move toward the electromagnet block 5 by the bias of the return spring 31, and both ends of the movable contact spring plate 23A are shielded. The inner surface of the plate 16A is grounded through ground terminals 27a and 27b.

On the other hand, both ends of the movable contact spring plate 23B come into contact with the fixed contacts 20, 20 of the fixed contact terminals 19a, 19c so as to conduct between the fixed contact terminals 19a, 19c.

Next, when the electromagnet block 5 is excited, one piece 12a of the armature 12 is attracted to the iron core 8, and the armature 12 rotates. Due to this rotation, the other piece 12 b pushes the card 4 and turns the counter electromagnet block 5 in the direction against the bias of the return spring 31. Due to this rotation, the movable contact spring plate 23B has both ends separated from the fixed contacts 20 and 20 and comes into contact with the inner surface of the shield plate 16B to contact the ground terminals 27a and 27b.
b is grounded.

On the other hand, both ends of the movable contact spring plate 23A are brought into contact with the fixed contacts 20, 20 of the fixed contact terminals 19a, 19b to conduct between the fixed contact terminals 19a, 19b. This state is the state shown in FIG.

When the excitation of the electromagnet block 5 is stopped, the card 4 is rotated by the bias of the return spring 31 so that the lower part moves toward the electromagnet block 5, and the movable contact spring plate 23A
Are brought into contact with the inner surface of the shield plate 16A, and both ends of the movable contact spring plate 23B return to the state of contact with the fixed contacts 20, 20 of the fixed contact terminals 19a, 19c. (Embodiment 2) In Embodiment 1 described above, the movable contact spring plates 23A, 23B
The characteristic impedance of the transmission line is changed by changing the shape of the transmission line. However, in the present embodiment, the shield plates 16A and 16B which are one of the components related to the characteristic impedance of the transmission line are changed.
The characteristic impedance of the transmission line is matched to the specified impedance by changing the shape of the transmission line.

In this embodiment, in the case of the 75Ω specification, FIG.
Shield plates 16A and 16B are used.
In the case of the specification, for example, as shown in FIGS. 10A and 10B, pieces 41, 41 extending from the upper end of a portion of the shield plate 16 where the recess 26 is not provided are arranged in parallel with the plate surface of the shield plate 16. Then, the characteristic impedance is matched to the specified impedance of 50Ω.

The shape of the shield plate 16 is changed as shown in FIG.
As (b), a predetermined characteristic impedance may be obtained by folding one piece 41 ′ wider than the width of the piece 41 into a shape.

Further, as shown in FIGS. 12 (a) and 12 (b), a notch 42 is provided in the shield plate 16 to change its shape.
2, a predetermined characteristic impedance may be obtained.

[0053]

According to the first aspect of the present invention, a shield space in which a ground contact portion electrically connected to a ground terminal and a fixed contact portion of a fixed contact terminal are provided on a base, and a fixed contact is provided in the shield space. The movable contact spring plate is arranged so as to be able to contact and separate from the portion and to be in contact with the ground contact portion when being separated from the fixed contact portion, and to drive the card supporting the movable contact spring plate. In a high-frequency relay in which an electromagnet block to be mounted is provided on a base outside the shielded space, the characteristic impedance of the entire transmission line is matched with the specified impedance in the shape of a single part of either the shield plate or the movable contact spring plate. Therefore, even if the impedance specifications are different, for example, 50Ω specification and 75Ω specification, it is possible to respond by changing the shape of one part, By sharing with a product having a different specification, the production cost can be reduced.

According to the second aspect of the present invention, since the characteristic impedance is set by the shape of the shield plate in the first aspect of the invention, the effect of the first aspect can be obtained by changing the shape of the shield plate.

According to a third aspect of the present invention, in the first aspect of the invention, the characteristic impedance is set by the shape of the movable contact spring plate, so that the effect of the first aspect of the invention is obtained by changing the shape of the movable contact spring plate. Can be

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, an opening is provided in a side wall of the base facing a portion requiring adjustment of operating characteristics. This has the effect that adjustment after component assembly can be easily performed without affecting the performance.

[Brief description of the drawings]

FIG. 1A is a front view of a movable contact spring plate corresponding to a 75Ω specification used in a first embodiment of the present invention. (B) is a front view of the movable contact spring plate corresponding to the 50Ω specification used in the above.

FIG. 2 is an exploded perspective view of the same.

FIG. 3A is a plan sectional view of the same. (B) is an AA cross-sectional view of (a).

FIG. 4A is a top view of a base used in the above.
(B) is front sectional drawing of the base used same as the above.
(C) is a front view of the base used in the above. (D) is a side sectional view of the base used in the above.

FIG. 5 (a) is an enlarged cross-sectional view in which a main part of the above is partially omitted. (B) is an enlarged front view which can omit a part of principal part same as the above.

FIG. 6A is a front view of one shield plate of the above. (B) is a front view of the other shield plate of the above.

FIG. 7 is an explanatory diagram of a configuration of the above shield plate.

FIG. 8 is an explanatory diagram of a support portion of a pivot shaft portion of the card according to the first embodiment.

FIG. 9 is a side view of the card.

FIG. 10A is a top view of an example of a shield plate corresponding to the 50Ω specification according to the second embodiment of the present invention. (B) is a front view of an example of the shield plate corresponding to the 50 ohm specification same as the above.

FIG. 11A is a top view of another example of the shield plate corresponding to the 50Ω specification of the above. (B) is a front view of another example of the shield plate corresponding to the 50Ω specification of the above.

FIG. 12A is a top view of another example of the shield plate corresponding to the 50Ω specification of the above. (B) is a front view of another example of the shield plate corresponding to the 50Ω specification of the above.

FIG. 13 is an exploded perspective view of one conventional example.

[Explanation of symbols]

 18 Movable contact spring plate 35 Projection 38 Notch

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[Procedure amendment]

[Submission Date] October 25, 2000 (2000.10.
25)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 13

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuji Yamashita 1048 Kazumasa Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Hidetoshi Takeyama 1048 Kazumasa Kadoma Kadoma City, Osaka Matsushita Electric Works (72) Inventor Koji Sagawa 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Tetsuya Yamada 1048 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Works F-term (reference) 5G023 AA01 BA03 CA50 5G051 EA00 EA05

Claims (4)

[Claims] A shield space in which a ground contact portion electrically connected to a ground terminal and a fixed contact portion of a fixed contact terminal are provided on a base, and the shield space is contacted with and separated from the fixed contact portion in the shield space. The movable contact spring plate is arranged so as to be freely and in contact with the ground contact portion when being separated from the fixed contact portion, and the electromagnet block for driving the card supporting the movable contact spring plate is placed outside the shield space. In the high-frequency relay arranged on the base of the above, the characteristic impedance of the entire transmission line is matched with the specified impedance by changing the shape of only one of the shield plate and the movable contact spring plate forming the shield space. High frequency relay characterized. 2. The high-frequency relay according to claim 1, wherein the characteristic impedance is set according to the shape of the shield plate. 3. The high-frequency relay according to claim 1, wherein the characteristic impedance is set according to a shape of the movable contact spring plate. 4. The high-frequency relay according to claim 1, wherein an opening is provided in a side wall of the base facing a portion where adjustment of operation characteristics is required.