JP3972514B2 - Coaxial relay - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coaxial relay used in a wireless communication device or the like.
[0002]
[Prior art]
As a coaxial relay used for switching between a microwave and a line, there is one disclosed in JP-A-58-202601.
[0003]
FIG. 9 shows a conventional example of a coaxial relay of the latching relay type. This conventional example is formed by die-casting or cutting as shown in the figure, and includes three mounting holes 103... Three SMA type coaxial connectors 101a to 101c are screwed into a female thread portion formed in the lower part, and the tips of the central conductors 102 of the coaxial connectors 101a to 101b are exposed on the upper surface as coaxial fixed contacts. A base 100, a metal sub-base 107 formed on the base 100 by die-casting or cutting, and a concave surface 108 on the upper surface of the base 100, and a central conductor 102 of a central coaxial connector 101b. A contact that contacts and separates both ends of the upper end surface and the upper end surface of the central conductor 102 of the coaxial connector 101a on one end (left end) side. A drive body 105 made of Teflon resin having a lower end heat-fitted at the center of 04 is inserted into the sub base 107 so as to be movable up and down, and a coil is formed between the upper end head of the drive body 105 and the upper surface of the sub base 107. A first contact block 109a that pushes up the driving body 105 with a spring 106 interposed therebetween, and an upper end surface of the central conductor 102 of the central coaxial connector 101b disposed in the concave plane 108 on the upper surface of the base 100 The Teflon resin driving body 105 whose lower end is heat-contacted to the contact 104 that contacts and separates the both ends of the center conductor 102 of the coaxial connector 101c on the other end (right end) side is movable up and down to the sub-base 107. And a coil spring 106 is interposed between the upper end head of the driving body 105 and the upper surface of the sub-base 107 to drive the driving body 10 upward. Constitute a high-frequency block in the second contact block 109b which is adapted to push up the.
[0004]
In addition, the upper ends of the iron cores 112 of the exciting coil portions 111 are inserted and fixed on both side portions of the flat yoke 110, and one magnetic pole surface is joined to the lower surface of the central portion of the yoke 110 between the exciting coil portions 111. The electromagnetic block 114 is composed of a rectangular parallelepiped permanent magnet 113 or the like that hangs down parallel to the exciting coil unit 111.
[0005]
This electromagnetic block 114 has spacers 115 interposed between both ends of the yoke 110 and both ends of the sub-base 107, respectively, and through holes 116 at both ends of the yoke 110, through holes of the spacer 115, The fixing screws 118 and 119 inserted through the insertion holes 117 at both ends of the sub-base 107 are screwed into the screw holes 120 opened at the upper surfaces of both ends of the base 100 and fixed and held.
[0006]
The armature 121 made of a magnetic body rotated by the magnetic action of the electromagnetic block 114 is pivotally supported by a projecting portion 122 projecting from the center of the sub-base 107 by a rotating shaft 121a. The upper surface of the part is opposed to the magnetic pole surface at the other end of the permanent magnet 113, and the upper surface of both ends is opposed to the magnetic pole surface at the lower end of the iron core 112 of the exciting coil unit 111.
[0007]
One fixing screw 118 is inserted into one end of the printed circuit board 123 disposed above the yoke 110 so as to hold the upper and lower surfaces of the printed circuit board 123 with nuts 125, 125, and further above the printed circuit board 123. The printed circuit board 124 is further inserted into one end of the printed circuit board 124 so that the upper and lower surfaces of the printed circuit board 124 are held between the nuts 126 and 126.
[0008]
On the upper surface of the printed circuit board 123, an indicator spring 127 whose center is fixed to the printed circuit board 123 and whose both ends are free ends and a fixed contact 131 facing the free end of the indicator spring 127 are disposed. The excitation circuit of the electromagnetic block 114 is wired and connected to a terminal 129 provided on the ceiling surface of the metal cover 128 attached on the base 100 by a lead wire 130 and connected to an external circuit. Yes.
[0009]
A pin 132 made of a non-magnetic and insulating material is inserted through the center of the iron core 112 of each exciting coil unit 111 so as to be movable up and down. The lower surface of the armature 121 is opposed to the lower surface on the free end side from the fixed point at the center of 127, and the lower end is opposed to the upper surface of the end of the armature 121.
[0010]
Thus, in the state shown in FIG. 9, the magnetic flux of the permanent magnet 1113 flows in the closed magnetic path of the permanent magnet 113, the yoke 110, the iron core 112, the armature 121, and the permanent magnet 113 in the left exciting coil unit 111, The left end is attracted and held on the magnetic pole surface of the iron core 112, and the pin 132 is pushed up at the left end of the armature 121, and the corresponding free end of the indicator spring 127 is separated from the fixed contact 131. In the contact block 109a, the drive body 105 is pushed upward by the coil spring 106, the corresponding contact 104 is separated from the upper end surface of the central conductor 102 of the coaxial connectors 101a and 101b, and the coaxial connectors 101a and 101b are turned off. Yes.
[0011]
On the other hand, in the figure, on the right side of the armature 121, the driving body 105 of the contact block 109b is pushed down on the lower surface of the right end portion of the armature 121 against the spring bias of the coil spring 106, and the center of the coaxial connectors 101b and 101c. A contact 104 corresponding to the upper end surface of the conductor 102 is in contact, and the coaxial connectors 101a and 101b are turned on. The pin 132 corresponding to the right end portion of the armature 121 moves downward, and the free end of the indicator spring 127 corresponding to the pin 132 is in contact with the fixed contact 131 by a spring force.
[0012]
In such a state, when an exciting current is passed through the right exciting coil portion 111 in the direction in which the right end portion of the armature 121 is attracted to the iron core 112 of the right exciting coil portion 111, the armature 121 is counterclockwise in the figure. By rotating in the direction, the state of the contact blocks 109a and 109b is reversed and the state of the indicator spring 127 is reversed. After the right end portion of the armature 121 is attracted to the magnetic pole surface of the iron core 112 of the right exciting coil portion 111, even if the exciting current is cut off, the permanent magnet 113, the yoke 110, the iron core 112, the armature 121, the permanent magnet The attracting state of the armature 121 is maintained by the closed magnetic path of the magnet 113.
[0013]
In this way, by reversing the armature 121 according to the direction of the exciting current flowing through the exciting coils of the exciting coil portions 111 and 111, the contact blocks 109a and 101b are connected between the coaxial connectors 101a and 101b. It can be turned on / off by the contacts 104, 104 of 109b.
[0014]
FIG. 10 shows a conventional example of a monostable type (fail-safe type) coaxial relay. This monostable type coaxial relay has an electromagnetic block 140 disposed horizontally and an exciting coil portion having an electromagnetic block 140 at one end. An L-shaped armature 141 in which one piece is opposed to the iron core 144 of 145 and the other piece is disposed below the electromagnetic block 140 and the bent portion is pivotally supported by the electromagnetic block 140, and the sub-base 117 is rotated. A rotary drive body pivotally supported by a moving shaft 142, one end is urged by a return spring 143, and the other end of the armature 141 is in contact with a portion between the return spring 143 and the rotary shaft 142. 142, and a drive mechanism block composed of 142. Since the high-frequency block side is basically similar to the structure of FIG. 9, the same components are assigned the same numbers and symbols, and the description thereof is omitted.
[0015]
Thus, when the exciting coil portion 145 of the electromagnetic block 140 is excited, a piece is attracted to the iron core 144 and the armature 141 is turned counterclockwise. With this rotation, the armature 141 pushes the rotation drive body 143 downward at the tip of the other piece against the bias of the return spring 143 to rotate the rotation drive body 141, and this rotation causes the rotation axis to rotate. The drive body 105 of the contact block 109a that is opposed to the lower surface of the rotational drive body 143 between 142 and the return spring 143 is pushed against the bias of the coil spring 106, and is driven by the tip of the rotational drive body 141. The pushing of the driving body 105 of the contact block 109b is released and the driving body 105 is moved upward by the urging of the coil spring 106. The contacts 104 of the contact block 109a are turned on between the coaxial connectors 101a and 101b, and the coaxial connector 101b, 101c is turned off.
[0016]
When the exciting current is cut off, the armature 141 is no longer attracted to the iron core 114, so that the rotation drive body 142 is rotated clockwise by pushing up the return spring 143, and the states of the contact blocks 109a and 109b are as shown in FIG. It will return to the state of.
[0017]
[Problems to be solved by the invention]
As described above, whether a conventional coaxial relay is a latching type or a monostable type, an armature or a rotary driving body for driving a contact block driving body is arranged on the high frequency block side separated from the electromagnetic block side. Therefore, there is a problem that the armature stroke and the stroke of the rotary drive body are not stable due to the influence of assembly variation and component variation.
[0018]
In particular, in the conventional example of FIG. 9, the electromagnetic block is fixed to the base using the screw and the height position is determined by the screw, so that there is a variation due to assembly, and the armature stroke and the stroke of the rotating drive body are not stable. For this reason, there has been a problem that productivity is poor because the assembly by screws is repeated.
[0019]
In addition, the structure that pivots the pivot axis of the armature on the sub-base side and the pivot axis of the rotary drive body, so the sub-base cannot be manufactured by punching a metal plate, and the cost of machining and die-casting. There was a problem that it had to be produced in a high way. Moreover, the lapping process which is easy to obtain flatness cannot be used, and the process is not easy.
[0020]
Further, since the latching type and the monostable type have different structures, there is a problem that the parts cannot be shared and the assembly cannot be shared, resulting in poor productivity.
[0021]
The present invention has been made in view of the above-mentioned problems, and its object is to assemble a high-frequency block and a drive mechanism block including an armature separately to assemble the same so that the stroke of the armature can be stabilized. In providing a relay.
[0022]
[Means for Solving the Problems]
According to the first aspect of the present invention, there are formed a base having three coaxial fixed contacts exposed on one surface and a sub-base arranged on the base on the exposed side of the fixed contacts, and formed on the opposing surfaces of the sub base and the base. First and second contacts having contacts arranged in the space between the central fixed contact and the fixed contact at one end and between the central fixed contact and the fixed contact at the other end are arranged close to and away from each other. A high-frequency block having a contact block, a frame made of a non-magnetic material fixed on the high-frequency block, an electromagnetic block fixedly disposed in the frame, and a central portion as a rotation center by the magnetic action of the electromagnetic block By rotating, this rotation pushes one contact block facing the end close to the high-frequency block, and unlocks the other contact block facing the separating end. A drive mechanism block having an armature to be mounted, a board block made of a printed circuit board that is disposed above the drive mechanism block, and that is electrically connected to the electromagnetic block with a circuit that supplies an excitation current to at least the electromagnetic block; The electromagnetic block is composed of a flat plate portion fixed to the inner surface of the ceiling piece of the frame and the longitudinal length of the flat plate portion. A yoke comprising two hanging pieces formed by bending a hanging piece having a symmetrical width from the center position to the high frequency block side from both side edges of the center position in the direction, and both ends of the flat plate portion of the yoke One end of the iron core is fixed to the inner surface of each of the parts, and two sets of exciting coil parts are wound around the flat plate part of the yoke by winding an exciting coil around the iron core, and the tips of the two hanging piece parts And a permanent magnet whose upper and lower end surfaces are magnetic pole surfaces. The magnetic pole surface at the lower end of the permanent magnet is in contact with the center portion of the armature, and the magnetic pole surface at the end on the high frequency block side of the iron core of each exciting coil portion is connected. It is characterized by being opposed to both ends of the pole .
[0024]
According to a second aspect of the present invention, in the first aspect of the present invention, the latching relay is configured such that the width in the direction perpendicular to the magnetization direction of the permanent magnet is the same as the width of the hanging piece.
[0025]
According to a third aspect of the present invention, in the first aspect of the present invention, the width in the direction perpendicular to the magnetization direction of the permanent magnet is made smaller than the width of the hanging piece, and the width of the hanging piece is centered in the width direction. A monostable relay is formed by deviating from the center line in the width direction of the permanent magnet.
[0027]
According to a fourth aspect of the present invention, in any one of the first to third aspects, the sub-base of the high-frequency block is made of a metal plate formed by stamping.
[0028]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the frame includes a ceiling piece and both side pieces that are bent downward from both side ends of the ceiling piece in one direction. A step portion having a downward surface is formed at a lower portion of the leg piece extending downward from both ends of the base plate, and a recess portion in which the surface of the base is exposed is formed at a portion of the sub-base corresponding to each step portion. It is characterized in that the side surface of the leg piece is welded to the side surface of the recessed portion in a state in which the step portion is fitted to the portion and the downward surface of the step portion is placed on the upper surface of the sub-base .
[0029]
The invention of claim 6 is the invention according to any one of claims 1 to 5 , wherein the width of the armature is longer than the width of the armature, and the central portion is fixed to the lower surface of the central portion of the armature, and both ends are Rutotomoni comprising a central piece which projects on both sides, the contact spring comprising a spring piece which extends integrally along the armature from the longitudinal side ends of the armature of the central portion of the central piece, the frame, the ceiling Each side piece that is bent downward from one side end of each side of the ceiling piece, and protrudes downward from each protruding piece integrally projecting inwardly from the lower end of the central portion of the side piece on both sides of the frame Are inserted into the holes provided at both ends of the center piece of the contact spring projecting from both sides of the armature, and the upper surface of the center of the armature is attracted by the downward magnetic pole surface of the permanent magnet. rotatably supported, and contacting the dowel formed on the lower surface of each protrusion Across the upper surface of the central piece of the spring abuts, characterized in that the center of rotation of the armature of the dowel.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
(Embodiment 1)
This embodiment constitutes a latching relay. As shown in FIGS. 1 and 2, the drive mechanism block 1 in which the electromagnetic block 22 and the armature block 23 are incorporated in the frame 27 and the armature 2 of the armature block 23 are shown. SMA type coaxial connector 6a in which the metallic sub-base 4 provided with the contact blocks 3a and 3b driven by the contact block 3a and the fixed contacts opened and closed by the respective contacts 5 of the contact blocks 3a and 3b are formed on the upper end surface of the center conductor 7, respectively. A high frequency block composed of a metal base 8 screwed with ˜6b, an excitation circuit and an indicator circuit of the drive mechanism block 1, a substrate block 26 disposed above the drive mechanism block 1, and a box having a lower surface opening And a synthetic resin molded product cover 9 such as LCP.
[0031]
The metal base 8 is formed by cutting. As shown in FIGS. 3 and 4, three mounting holes 10 that penetrate from the bottom surface to the upper surface are formed at regular intervals in the longitudinal direction. 10 has a female screw portion 10a formed in the lower portion and an upper end opened to a concave plane 8a formed on the upper surface of the metal base 8. The female screw portion 10a of each mounting hole 10 is formed on the bottom surface side of the metal base 8. SMA type coaxial connectors 6a to 6c are respectively screwed, and the respective central conductors 7 of the coaxial connectors 6a to 6c are projected from the upper end opening of the hole 10 into the concave plane 8a. The upper end surfaces of these central conductors 7 are at the same height and constitute a fixed contact.
[0032]
The coaxial connectors 6a to 6c are made of a metal cylindrical outer shell conductor 11 having a male screw portion formed on the outer periphery, a fluorine resin insulator 12 inserted into the outer shell conductor 11, and the center of the insulator 12. A center conductor 7 inserted into the through hole and having a tip projecting outward, and a constricted portion 7a formed near the base of the projecting portion of the center conductor 7 are press-fitted into the center hole, and an upper end opening of the outer shell conductor 11 is inserted. And a sub-bushing 13 made of cyclic PCTFE (ethylene trifluoride) that is press-fitted into the portion, and the sub-bushing 13 ensures a holding force that restricts the removal and rotation of the center conductor 7 by the hardness of the material. . The outer conductor 11 is formed with cut surfaces 11a for securing an adhesive accommodating space opened at the upper end side of the outer conductor 11 at two positions on both sides of the male screw portion. The adhesive is used to secure the screwing strength with the female screw portion 10a when the male screw portion of the outer conductor 11 is screwed into the female screw portion 10a of the mounting hole 10, and the adhesive protrudes from the cut surface 11a. Ensure storage space is avoided.
[0033]
As shown in FIG. 3, the mounting hole 10 has a depth of the female screw portion 10a that is approximately ½ (half) of the height of the base 8, and the above-mentioned cut surface can be obtained by increasing the screwing allowance. The strength in the direction of the arrow Y can be maintained while securing a storage space for the adhesive by 11a.
[0034]
Further, by setting the inner diameter of the hole 10b above the female screw portion 10a to be slightly smaller than the inner diameter of the female screw portion 10a, a boundary portion between the upper end portion of the female screw portion 10a and the hole portion 10b is used as a step portion. The upper surface near the boundary portion between the outer shell conductor 11 and the sub bushing 13 of the coaxial connectors 6a to 6c is brought into contact with the downward surface, the diameter dimension of the sub bushing 13 at the contact portion, and the constricted portion of the central conductor 7 Balance of holding force while ensuring high frequency characteristics by making the dimensions in the diameter direction of the upper and lower surfaces of the sub bushing 13 abutting the upper and lower surfaces in the constricted portion 7a around the hole for fitting the 7a. Therefore, the strength in the direction of the arrow X is secured in the portions a and b of the respective portions, and the strength in the direction of the arrow X ′ is secured in the portion c, and at the same time, the center conductor 7 is prevented from rotating. Yes.
[0035]
By securing the strength in the X, X ′, and Y directions as described above, the holding force of the coaxial connectors 6a to 6c is ensured, and the components are displaced due to external force when the coaxial cable is connected and the high frequency characteristics are changed.・ It can prevent deterioration.
[0036]
The sub-base 4 is formed by punching a metal plate, and the lengths in the longitudinal direction and the short-side direction are slightly smaller than the dimensions in the corresponding direction of the base 8. When attached to a fixed position on the upper surface, the upper surface of the base 8 on which the lower end surface of the cover 9 is placed can be secured around it. Further, the lower surface of the sub-base 4 needs to ensure its flatness in order to contact the upper surface of the base 8, but since it is plate-shaped, lapping can be used for polishing.
[0037]
When the sub-base 4 is mounted at a fixed position on the base 8, it is intermediate between the central conductor 7 of the coaxial connector 6a and the central conductor 7 of the coaxial connector 6b and the central conductor 7 of the coaxial connector 6a and the coaxial connector 6b. Through holes 14 and 14 penetrating vertically are drilled at positions corresponding to the middle of the center conductor 7. These through-holes 14 and 14 are made of LPC (fully aromatic liquid crystal polymer) resin that is heat-bonded to contact springs 15 and 15 disposed on the upper surface side of the sub-base 4 and is always biased upward. The drive bodies 16, 16 are inserted freely when moving in the vertical direction.
[0038]
These drive bodies 16, 16 are joined and fixed at the lower ends of the sub-base 4 projecting to the lower surface side by means of insert (simultaneous) molding, and the center portions of the contacts 5, 5 made of flat plate-like conductors. In addition, contact blocks 3a and 3b are respectively configured. Each contact 5 of these contact blocks 3a and 3b is moved up and down in the concave plane 8a of the base 8 by moving the driving body 16 up and down, and the lower surface of both ends of the contact 5 of the contact block 3a is a concave plane. Opposite end faces of the central conductors 7 and 7 of the coaxial connectors 6a and 6b projecting into the 8a, and lower surfaces of both ends of the contact 5 of the contact block 3b are opposed to upper end faces of the coaxial connectors 6b and 6c projecting into the concave plane 8a. Then, the contact 5 of the contact block 3a contacts the upper end surfaces of the center conductors 7 and 7 of the coaxial connectors 6a and 6b when moving downward, and turns on between the coaxial connectors 6a and 6b. The contact 5 of the contact block 3b When moving downward, the upper ends of the central conductors 7 and 7 of the coaxial connectors 6b and 6c come into contact with the coaxial connectors 6b and 6b. In shall, both contact block 3a, the contact by the contact 5 of the 3b are alternately switched by the contacts 2 of the drive mechanism block 1. Accordingly, the central conductor 7 of the coaxial connector 6b serves as a common terminal, and the coaxial connector connected to the common terminal side is alternately switched between 6a and 6b.
[0039]
Here, since the LPC resin having particularly excellent heat resistance is used as the material of the driving body 16 of the contact blocks 3a and 3b, the heat generation of the contact 5 can be endured, and as a result, the power that can be supplied to the contact portion can be increased. . Further, since the contact 5 is coupled and fixed to the driving body 16 by insert molding, the contact of the contact 5 to the driving body 16 is stable, and the contact 5 is positioned by an insert molding die, so that the contact 5 is inclined. In addition, the dimensions (volume), position, and shape of the fixed part are stabilized by the mold accuracy, and the high-frequency characteristics including mechanical opening and closing are stabilized. Further, the driving body 16 can be manufactured at a low cost because of the molding process. Here, the cross-sectional shape of the hole of the contact 5 fixedly coupled to the drive body 16 is square as shown in FIG. 4 to prevent rotation. If the high-frequency matching is adjusted and changed by deforming the through hole 14, the high-frequency matching can be easily changed.
[0040]
The contact spring 15 that urges the drive body 16 of the contact blocks 3a and 3b is formed into a Japanese character shape by punching and bending with a mold, and the central portion of the central piece 15a is positioned higher than both ends thereof. The center piece 15a is bent so as to be positioned, and both end pieces 15b, 15b parallel to the center piece 15a are bent so that the center part is lower than both ends. The upper end portion 16a of the driving body 16 is inserted into the provided insertion hole 18 from below and fixed by heat-fitting, and the fixing screw 17 is inserted from above into an insertion hole (not shown) provided in the center of both end pieces 15b. It has become.
[0041]
Here, the diameter of the driving body 16 below the upper end portion 16a that serves as a presser for the contact spring 15 only needs to be larger than the inner diameter of the insertion hole 18 of the contact spring 15, so that a heat-sealed shape with a small diameter is possible. Further, the tip of the upper end portion 16a can reduce the friction of the portion in contact with the armature spring 19, reduce the contact area as shown, or form an R surface. Further, the volume of the heat-attached portion can be adjusted by the height of the upper end portion 16a of the driving body 16, and since the precision of the molding die of the driving body 16 is good, rattling can be eliminated.
[0042]
On the other hand, the contact spring 15 is screwed and fastened to the screw hole 21 on the base 8 side through an insertion hole for forming the fixing screw 17 penetrating the center portion of the both end pieces 15b in the sub base 4 together with the sub base 4. The fixing screw 17 is also used as a fixing screw for the sub base 4 to improve workability.
[0043]
Now, since the contact spring 15 has a bilaterally symmetrical shape formed in a Japanese shape and is configured to fix the central part of both end pieces 15b, 15b, the upper displacement of the central piece 15a is possible, but to both sides There is almost no blurring, and the pushing force is determined by the die size of the punching / bending process, so that the pushing force is stable. As a result, the pushing direction is stabilized and stable operation can be realized. In addition, since one part has a simple shape, the part productivity is good.
[0044]
As described above, since the contact spring 15 can be stably pushed upward, it is not necessary to restrict the direction of the driving bodies 16 and 16 of the contact blocks 3a and 3b by the through holes 14 of the sub-base 4. By increasing the gap with the inner surface of the hole 14, the friction at this portion can be eliminated, and the resulting operation becomes more stable. Further, by adopting a method in which the contact spring 15 is fixed to the sub-base 4 by screws, replacement for adjusting characteristics is facilitated.
[0045]
Here, as shown in FIG. 3, the dimension α of the lower end of the driving body 16 projecting downward from the lower surface of the contact 5 of the contact blocks 3a, 3b is fixed depending on the precision of the molding die. On the other hand, the deviation in impedance at the center of the contact blocks 3a and 3b is optimally determined by the depth dimension β of the circular recess 28 provided in the concave plane 8a of the base 4 provided as a relief when the driving body 16 moves downward. Can be realized. Also, as shown in FIG. 4, the impedance matching is most easily achieved by making the central portions of the contact blocks 3a and 3b and the cross-sectional shape of the recess 28 concentric. In FIG. 4, γ represents the diameter of the recess 28, and γ ′ represents the diameter of the central portion of the contact blocks 3a and 3b.
[0046]
The drive mechanism block 1 includes an electromagnetic block 22, an armature block 23 including an armature 2 and an armature spring 19, and a frame 27 that holds the electromagnetic block 22 and the armature block 23.
[0047]
The electromagnetic block 22, which is a main component of the drive mechanism block 1, is composed of a yoke 29, two sets of exciting coil sections 30, a permanent magnet 32, and the like. The yoke 29 is formed by punching and bending a magnetic material such as magnetic soft iron, a flat plate portion 29a, and a hanging piece portion 29b bent downward from a central portion in the longitudinal direction of the flat plate portion 29a. The upper end of the iron core 31 of the exciting coil portion 30 is inserted into holes provided at both end positions symmetrical from the longitudinal center of the flat plate portion 29a, and fixed by caulking, and the exciting coil portion 30 is suspended. A permanent magnet 32 is bridged between the lower ends of the hanging pieces 29b and 29b.
[0048]
This arrangement is achieved by positioning the permanent magnet 32 together with the plate width of the hanging piece portion 29b and by engaging the upper end edges of the plate-like permanent magnet 32 with the stepped portion 34 at the lower end of the hanging piece portion 29b. It is done by doing.
[0049]
Here, the center of the drooping piece 29b coincides with the center of the flat plate portion 29a, and the distance from the center to the both side edges is equal to each other. In this embodiment constituting the latching relay, the permanent magnet 32 is shown in FIG. As shown in FIG. 3, the hanging piece 29b has a width extending over both side edges and has magnetic poles on the upper and lower surfaces.
[0050]
By adopting the above-described structure for attaching the permanent magnet 32, the volume of the permanent magnet 32 becomes smaller and the cost is lower than the case where the upper end of the permanent magnet is bonded and fixed to the plate-shaped yoke and the permanent magnet is suspended. It will be cheap. Further, when the permanent magnet is directly bonded to the central portion of the yoke, it is difficult to position the center, and when the permanent magnet is tilted, the displacement at the magnetic pole at the tip of the permanent magnet is large, which affects the operating characteristics. As described above, when the permanent magnet 32 is attached between the hanging pieces 29 b and 29 b of the yoke 29, the inclination of the permanent magnet 32 is determined by the processing accuracy of the yoke 29. That is, since the inclination of the yoke 29 is determined by a die for punching and bending, the inclination is small and the dimensional accuracy is stable, so that the stroke of the armature 2 described later is stabilized, and power consumption can be reduced. In addition, since the magnetic circuit is configured with the yoke 2 having a small magnetic resistance as the center, a magnetic circuit capable of securing an equal or higher magnetic force even when the permanent magnet 32 having a large magnetic resistance is small can be configured.
[0051]
The exciting coil unit 30 is configured by winding an exciting coil 35 around a coil bobbin 33 having an iron core 31 inserted therethrough, and a pair of connecting portions connected to both ends of the exciting coil 35 from a flange 33a on the coil bobbin 33 of each exciting coil unit 30. Coil terminals 36 and 36 are projected. The coil terminals 36, 36 extend upward from the protruding base end and protrude upward from the flat plate portion 29 a of the yoke 29. A fixing base 33c for fixing the lower portion of the pair of indicator terminals 37, 37 is provided at the outer end of the lower flange 33b, and the indicator terminals 37, 37 are supported. These indicator terminals 37, 37 are extended in parallel using the empty space of the electromagnetic block 22, and the upper part is between the protruding portions of the coil terminals 36, 36 of the upper flange 36a. The upper end protrudes upward from the flat plate portion 39a of the yoke 39 in a retained form. The pair of indicator terminals 37, 37 are bent and protruded at both lower ends to form fixed contact pieces 38, 38. The pair of indicator terminals 37, 37 are indicators attached to the upper surfaces of both ends of the pair of fixed contact pieces 38, 38 and the contact 2, respectively. When the movable contact pieces 40, 40 on both sides of the Kate spring 39 are contact-separated by the rotation of the armature 2, the coaxial connector 6a by the contact 5 of the corresponding contact block 3a or 3b is turned on and off. A signal indicating the on / off state between 6b or 6c and 6b can be taken out.
[0052]
Therefore, in the structure of this embodiment, the indicator contact is arranged above the electromagnetic block as in the prior art, and a pin that moves up and down by the rotation of the armature is placed in the central through hole of the iron core of the exciting coil. Unlike the structure that opens and closes the indicator contact at the upper end, there is no need to increase the relay height, and there is no need for a printed circuit board or pin for mounting the indicator part, and between the pin and the center through hole of the core. This eliminates friction that occurs, and stabilizes operation.
[0053]
Here, the indicator terminal 37 and the indicator spring 39 are simultaneously removed from the same material (non-magnetic conductive material) with the same thickness by punching, thereby improving the productivity as well as making the mold common. I am trying.
[0054]
Each indicator spring 39 is fixed by welding the plate surface to the upper surface of the end portion of the armature 2 that is attracted and opposed to the magnetic pole surface at the lower end of the iron core 31 of the exciting coil portion 30, and also serves as a recovery plate. . The movable contact piece 40 is gold-plated or inlaid in a tape shape.
[0055]
The contact block 23 is composed of an armature 2 made of a magnetic material, indicator springs 39 and 39 also serving as a rejuvenating plate fixed to the upper surface of both ends of the armature 2 by welding, and a contact spring 19 attached to the lower surface. configured, contact springs 19 and the center piece 19b which is formed in a direction perpendicular to the longitudinal direction of the armature 2, from the center on both sides of the central piece 19b, formed integrally so as to parallel to the longitudinal direction of the armature 2 The spring piece 19a is composed of a pair of spring pieces 19a and a spring adjustment protrusion piece 41 integrally protruding sideways from both ends of the spring pieces 19a. The central piece 19b has a substantially U-shaped cross section so as to protrude upward. A dowel (not shown) formed and protruded on the lower surface side of the armature 2 is inserted into the hole (not shown) formed in the central portion from above and caulked to be fixed to the center of the lower surface of the armature 2. Connected at both ends. And it is projected to both sides of the child 2. In this state, a gap is formed between the spring pieces 19a on both sides of the central piece 19b and the lower surface of the armature 2 so that the spring pieces 19a can bend. The spring can be adjusted by protruding in the direction. Square holes 42 into which ribs 43 protruded from a frame 27 described later are loosely fitted are provided at both ends of the central piece 19b protruding from both sides of the armature 2.
[0056]
The frame 27 is formed by punching and bending a non-magnetic metal plate, and includes a ceiling piece 27a and side pieces 27b formed by bending downward from both lateral ends of the ceiling piece 27a. 27b, and the electromagnetic block 22 configured as described above is accommodated in the space between the ceiling piece 27a and the side pieces 27b and 27b, and the armature configured as described above is further provided below the electromagnetic block 22. Block 23 is arranged.
[0057]
The electromagnetic block 22 is attached to the frame 27 by inserting the dowels 44 pressed from the lower surface into the four corners of the upper surface of the yoke 39 and projecting upward into the insertion holes 45 formed corresponding to the ceiling piece 27a side from below. Then, the upper surface of the yoke 39 is brought into contact with the lower surface of the ceiling piece 27a, and the dowel 44 protruding from the insertion hole 45 in this state is caulked and fixed. At this time, the coil terminal 36 and the indicator terminal 37 protruding upward from both ends of the electromagnetic block 22 protrude above the ceiling piece 27a from the notches 46 formed at both ends of the ceiling piece 27a. Moreover, the upper end part of the iron core 31 of each exciting coil part 30 will be fitted in the escape hole 47 provided so as to oppose the ceiling piece 27a.
[0058]
Bending pieces 48 and 48 are formed by bending inwardly at the central lower ends of both side pieces 27b and 27b located slightly below the lower surface of the permanent magnet 32 of the electromagnetic block 22, and an armature is provided between the protruding pieces 48 and 48. 2 and the ribs 43 formed by bending downward from the tips of the projecting pieces 48, 48 are projected from above into the square holes 42 at both ends of the center piece 19 b of the contact spring 19 projecting from both sides of the center of the armature 2. By loosely fitting, the upper surface of both ends of the central piece 19b of the contact spring 19 protruding from both sides of the armature 2 is swingably contacted with a dowel 49 protruding from the lower surface of the protruding pieces 48, 48. At this time, since the armature block 23 is pulled upward by the magnetic force of the permanent magnet 32, the arm 43 is held by the frame 27 without dropping the rib 43 from the square hole 42, and the quality is also stabilized.
[0059]
By adopting such a holding structure for the armature block 23, welding and caulking jigs are not required and manual assembly is possible, thereby improving productivity. Further, since the rib 43 is installed on the central side of the armature 2, there is almost no sliding due to the rotation of the armature 2, that is, there is no mistake and the operation is stable. Furthermore, since the square hole 42 of the contact spring 19 is configured to loosely fit the ribs 43, without the spring force of the contact spring 19 acts on the site, the center piece 19b of the contact spring 19 and Matadabo 49 Since there is almost no contact between the two, the spring is not excessive and the operation is stable compared to welding and fixing.
[0060]
The drive mechanism block 1 is completed by incorporating the electromagnetic block 22 and the armature block 27 into the frame 27 as described above.
[0061]
The drive mechanism block 1 is arranged and fixed on the high frequency block as follows. In other words, the stepped portions 53a of the leg pieces 53 integrally projecting downward from the lower portions of both ends 27b of the frame 27 are fitted into the recessed portions 54 formed at the four corners of the sub-base 4, and the downwardly facing surfaces of the stepped portions 53a. Is placed on the upper surface of the sub-base 4 to determine the height, and the lower end side surface 53a of the leg piece 53 is welded and fixed to the side surface of the sub-base 4 in this state.
[0062]
By this arrangement and fixing, the upper ends of the drive bodies 16 of the contact blocks 3a and 3b are opposed to the lower surfaces of the spring pieces 19a and 19a of the opposing armature springs 19, for example, as shown in the figure, a permanent magnet 32, a yoke 29, The drive body 16 of the contact block 3a facing the spring piece 19a of the contactor spring 19 on one end side of the contactor 2 that forms a closed magnetic path with the iron core 31 of the exciting coil unit 30 and is attracted to the iron core 31 side. The upper end is separated from the spring piece 19a, and the upper end of the drive body 16 of the contact block 3b facing the spring piece 19a of the contact spring 19 on the other end side of the contact 2 on the other side is not upward. The armature is pushed downward by the armature 2 through the spring piece 19a against the urging. That is, the contact block 3a is urged upward by the contact spring 15 and the driving body 16 moves upward so that both ends of the contact 5 are separated from the upper end surfaces of the central conductors 7 of the coaxial connectors 6a and 6b. In the other contact block 3b, the driving body 16 moves downward, and both ends of the contact 5 are in contact with the upper end surfaces of the central conductors 7 and 7 of the coaxial connectors 6b and 6c, and between the coaxial connectors 6a and 6b. Is off and the coaxial connectors 6b and 6c are on.
[0063]
Here, since the electromagnetic block 22 and the armature block 23 of this embodiment are all positioned by one part of the frame 27, the dimensional accuracy is stabilized and the productivity is improved.
[0064]
In addition, since the fixing to the frame 27 is all without screws and is performed by caulking or welding, the dimensional accuracy in the height direction is stable, no recombination due to variations in accuracy is required, and no adhesive application to the screw portion is required. Workability is improved.
[0065]
In addition, the frame 27 is stable in size and bending due to the mold accuracy, and the frame 27 is welded to the sub-base 4 of the high-frequency block together with the dimensional stability of the electromagnetic block 22, so that the height dimension is determined by one part of the frame 27. Can do. Further, since the drive mechanism block 1 is stacked on the high frequency block, the assembly process is simplified.
[0066]
Further, coaxial connectors 6a to 6c for opening and closing high frequency are attached, and the high frequency block including the base 8 and the sub base 4 to which the contact blocks 3a and 3b are attached and the drive mechanism block 1 are separated into blocks. Since the structure is incorporated, the high-frequency characteristics can be adjusted only by the high-frequency block, and the operating characteristics on the drive mechanism block 1 side can be adjusted separately from the high-frequency block side, so that the adjustment work is easy and productivity can be improved. Further, since the stroke of the armature 2 is determined by the position of the frame 27 and the iron core 31, it can be adjusted by adjusting the dimensions with a jig for ironing the iron core. Furthermore, the pushing amount of the contact blocks 3a, 3b, that is, the overtravel amount after the contact 5 abuts the upper surface of the central conductor 7 of the coaxial connectors 6a, 6b or 6b, 6c is the bending of the armature spring 19 after assembly. The adjustment is performed by using the spring adjustment protrusion 41. In this case, since the tip of the spring piece 19a of the armature spring 19 can be brought into contact with the lower surface of the armature 2, the adjustable width is wide.
[0067]
Furthermore, the adjustment of the operating characteristics when a predetermined excitation voltage is applied to the excitation coil section 30 is finally adjusted by bending the fixed contact piece 38 of the indicator terminal 27 that contacts the movable contact piece 40 of the indicator spring 39. . The spring adjusting protrusion 41 and the fixed contact piece 38 are formed so that other parts such as the frame 27 do not get in the way during adjustment.
[0068]
In the case of the present embodiment, basically, since the dimensional accuracy of each component and its positioning is improved, almost no adjustment can be realized.
[0069]
Now, after the drive mechanism block 1 is disposed and fixed on the high frequency block as described above, the substrate block 26 is disposed above the frame 27.
[0070]
In this case, the tip of the coil terminal 36 and the tip of the indicator terminal 37 projecting upward from the ceiling piece 27a of the frame 27 are attached to the mounting holes 50 and 51 provided so as to correspond to the printed board 24 of the board block 26 from below. The printed board 24 is inserted and soldered, and the printed board 24 is disposed and fixed above the ceiling piece 27 a and is electrically connected to a circuit mounted on the printed board 24.
[0071]
The board block 26 includes a printed board 24 and a connector 25 mounted on the center of the printed board 24. The connector 25 is a terminal for inputting a driving signal (including exciting current) of each exciting coil section 30 from an external circuit. And a terminal for outputting an operation state signal from the indicator terminal 37 to the outside. Of course, in the case of TTL driving, a TTL circuit or the like is mounted on the printed circuit board 24. The central opening 52 of the ceiling piece 27 a is an opening for escaping the terminal on the lower surface side of the connector 25.
[0072]
After the arrangement and fixing of the frame 27 is finished, the cover 9 is attached on the base 8 to complete the coaxial relay of this embodiment.
[0073]
When the cover 9 is attached, the terminal of the connector 25 is inserted into the terminal lead-out hole 55 provided on the ceiling surface of the cover 9 from the inside, and the drive mechanism block 1 is housed in the cover 9 while the cover 9 is attached to the base 8. The lower end of the cover 9 is moved in the direction, using the elasticity of the cover material, and the locking projections 56 projecting and locking to the outer surface of the fixed base 33c of the coil bobbin 33 of the exciting coil portions 30 and 30. The locking projection 56 is moved over while being guided by the tapered surface 56a at the upper end, and the locking projection 56 is locked from the inside to the locking holes 57 formed in the lower portions of both side walls of the cover 9 to fix the cover 9 To do. At this time, the lower end portion of the cover 9 comes into contact with the upper surface of the base 8 around the sub-base 4.
[0074]
As described above, according to the present embodiment, the entire assembly process is simplified by arranging the drive mechanism block 1 on the high frequency block, stacking the substrate block 26, and attaching the cover 9 from above. Assembling improves.
[0075]
Next, the operation of the present embodiment assembled as described above will be briefly described.
[0076]
In FIG. 2, the magnetic flux in the direction in which the upper end of the right end portion of the armature 2 is attracted to the exciting coil 35 of the exciting coil portion 30 on the side where the end portion of the armature 2 is away from the opposing magnetic pole surface of the iron core 31. When an excitation current in the direction to be generated is passed, the right end portion of the armature 2 is attracted to the opposing magnetic pole face of the iron core 31, and the contact force in the contact block 3b side pushes up the driving body 16 with a contact force in FIG. The pole 2 rotates counterclockwise.
[0077]
By this rotation, the right end portion of the armature 2 on the contact block 3b side is attracted to the opposing magnetic pole surface of the iron core 31 of the right exciting coil portion 30 via the indicator spring 39, and the iron core 31, the yoke 29, and the permanent A closed magnetic path of the magnet 32, the armature 2, and the iron core 31 is configured, and the right end portion of the contact 2 is attracted to the magnetic pole surface of the iron core 31 of the right excitation coil portion 30. This state is maintained because the magnetic flux of the permanent magnet 32 flows through the closed magnetic circuit even when the excitation current is lost. With the above operation, the contact 5 on the contact block 3b side is separated from the upper end surfaces of the central conductors 7 and 7 of the coaxial connectors 6b and 6c, and the coaxial connectors 6b and 6c are turned off. On the other hand, on the contact block 3a side, the left end of the armature 2 is moved downwardly against the pushing force of the contact spring 15 via the spring piece 19a of the armature spring 19 by the counterclockwise rotation of the armature 2. The contact 5 at the lower end of the driving body 16 contacts the upper end surfaces of the center conductors 7 and 7 of the coaxial connectors 6a and 6b, and turns on between the coaxial connectors 6a and 6b. Further, the movable contact piece 40 of the individual spring 39 on the side of the contact block 3b that has been in contact with the fixed contact piece 38 of the indicator terminal 37 is separated, and the contact that has been separated from the fixed contact piece 38 of the indicator terminal 37 is separated. The movable contact piece 40 of the independent spring 39 on the block 3 a side comes into contact with the fixed contact piece 38, and an operation state signal is output to the outside through the connector 25. The operation state can be monitored by this operation state signal.
[0078]
If an excitation current in the direction of attracting the left end portion of the armature 2 is supplied to the contact block 3a side, that is, the excitation coil 35 of the left excitation coil portion 30 in the figure from this inversion state, the inversion operation is performed in the same manner as described above. It will return to the state of.
[0079]
Although the above-described configuration is a bistable latching relay, a fail-safe monostable relay can be configured simply by changing the width dimension of the permanent magnet 32.
[0080]
In other words, as shown in FIG. 6, the width of the permanent magnet 32 corresponding to the longitudinal direction of the yoke 29 may be made smaller than the width of the hanging piece 29b so as to be close to one side. In this case, the excitation coils 35 of the left and right excitation coil sections 30 are connected in series to constitute one excitation coil.
[0081]
FIG. 7 shows a side cross-sectional view of an embodiment of this monostable relay structure. This monostable relay is driven as follows. In the stable state of FIG. 7, excitation current is applied to the excitation coils 35, 35 of both excitation coil portions 30, 30 so that the right end portion of the armature 2 is attracted to the magnetic pole surface of the iron core 31 of the right excitation coil portion 30. When flowing, the repulsive force generated between the left iron core 31 and the left end portion of the armature 2 causes a downward force on the left end portion of the armature 2 on the contact block 3a side, and the armature 2 on the contact block 3b side. At the right end, an attractive force and a pushing force of the driving body 16 by the contact spring 15 act, and the armature 2 rotates counterclockwise.
[0082]
When the right end portion of the armature 2 comes into contact with the magnetic pole surface of the iron core 31 of the right excitation coil portion 30 via the indicator spring 39, the iron core 31, the yoke 29, the permanent magnet 32, the contact of the right excitation coil portion. A closed magnetic path of the pole 2 and the iron core 31 is configured, and the other end of the armature 2 is in a state of being attracted to the lower end of the iron core 31 of the right exciting coil section 30.
[0083]
In this state, the drive body 16 of the contact block 3a is pushed against the push-up force of the contact spring 15 at the left end of the armature 2 that has moved downward, and the contact 5 is brought into contact with the upper ends of the central conductors 7 and 7 of the coaxial connectors 6a and 6b. Contact is made and the coaxial connectors 6a and 6b are turned on. Also, the drive body 16 of the contact block 3b is pushed up by the spring force of the contact spring 15 by the upward movement of the right end portion of the armature 2, and the contact 5 is separated from the upper end surfaces of the central conductors 7 and 7 of the coaxial connectors 6b and 6c. Then, the coaxial connectors 6b and 6c are turned off. Further, the movable contact piece 40 of the individual spring 39 on the side of the contact block 3b that has been in contact with the fixed contact piece 38 of the indicator terminal 37 is separated, and the contact that has been separated from the fixed contact piece 38 of the indicator terminal 37 is separated. The movable contact piece 40 of the independent spring 39 on the block 3 a side comes into contact with the fixed contact piece 38, and an operation state signal is output to the outside through the connector 25.
[0084]
This operating state is maintained in a state where an exciting current is flowing through the exciting coil 35 of the exciting coil unit 30, but when the exciting current is turned off, the state returns to the state shown in FIG. In other words, since the permanent magnet 32 is biased toward the contact block 3 a, the permanent magnet 32, the armature 2, the iron core 31, the yoke 29, and the permanent magnet 32 of the right excitation coil section 30 are placed on the contact block 3 b side. The combined force of the attracting force due to the magnetic flux of the flowing permanent magnet 32 and the pushing force of the driving body 16 by the contact spring 15 of the contact block 3a is larger than the attracting force with respect to the right end portion of the armature 2, so that the armature 2 is By rotating clockwise, the left end moves upward, and the left end of the armature 2 is attracted to the iron core 31 of the left exciting coil section 30 via the indicator spring 39, and the permanent magnet 32, contact 2 , A closed magnetic circuit is formed by the iron core 31, the yoke 29, and the permanent magnet 32 of the left exciting coil section 30, and the state is returned to and held in the state of FIG.
(Reference example)
In the first embodiment, the electromagnetic block 22 has a configuration in which two sets of exciting coil portions 30 are provided. However, in this reference example , as shown in FIG. An exciting coil 35 is wound on each side of the yoke 29 'from both sides of the yoke 29', and a permanent magnet 32 magnetized in the vertical direction is disposed on the lower surface of the center portion. An electromagnetic block 22 is used on the lower surface so as to face both end faces of the armature 2 of the armature block 23. This electromagnetic block 22 has a simplified structure in which the iron core of the exciting coil section 30 is also used as a yoke 29 '.
[0085]
The frame 27 is arranged without screws as in the first embodiment, and the armature block 23 is assembled to the frame 27 in the same manner as in the first embodiment to constitute the drive mechanism block 1.
[0086]
The contact blocks 3a and 3b are pushed up by using coil springs 60 and 60, which is different from the first embodiment. In addition, the same number and the symbol are attached | subjected to the other structure similar to Embodiment 1, and description is abbreviate | omitted.
[0087]
【The invention's effect】
The invention according to claim 1 is composed of a base in which three coaxial fixed contacts are exposed on one surface and a subbase disposed on the base on the exposed side of the fixed contacts, and is formed on the opposing surface of the subbase and the base. First and second contacts having contacts arranged in the space between the central fixed contact and the fixed contact at one end and between the central fixed contact and the fixed contact at the other end are arranged close to and away from each other. A high-frequency block having a contact block, a frame made of a non-magnetic material fixed on the high-frequency block, an electromagnetic block fixedly disposed in the frame, and a central portion as a rotation center by the magnetic action of the electromagnetic block Rotating, and this rotation pushes one contact block that faces the end close to the high frequency block, and releases the push of the other contact block that faces the separating end A drive mechanism block having an armature, and a substrate block made of a printed circuit board that is disposed above the drive mechanism block and that is electrically connected to the electromagnetic block with a circuit that supplies an excitation current to at least the electromagnetic block; The electromagnetic block is composed of a flat plate portion fixed to the inner surface of the ceiling piece of the frame and the longitudinal length of the flat plate portion. A yoke comprising two hanging pieces formed by bending a hanging piece having a symmetrical width from the center position to the high frequency block side from both side edges of the center position in the direction, and both ends of the flat plate portion of the yoke One end of the iron core is fixed to the inner surface of each of the parts, two sets of exciting coil portions are wound around the flat plate portion of the yoke by winding an exciting coil around the iron core, and the tips of the two hanging piece portions And a permanent magnet whose upper and lower end surfaces are magnetic pole surfaces. The magnetic pole surface at the lower end of the permanent magnet is at the center of the armature, and the magnetic pole surface at the end on the high frequency block side of the iron core of each excitation coil is armature. Since the armature and the electromagnetic block are assembled in the same frame, the drive mechanism block, the substrate block, and the cover can be assembled in order from the high-frequency block. The assembly process is simplified and the assemblability is improved, and the drive mechanism block including the armature can be assembled separately from the high frequency block, and therefore compared to the case where the armature is provided on the high frequency block side. There is little dimensional variation between the electromagnetic block and the armature, and there is an effect that the stroke of the armature is stabilized.
[0088]
In addition, the electromagnetic block can be fixed without screws, the workability of assembling the electromagnetic block is good, and there is an effect that it can be assembled with high dimensional accuracy.
[0089]
According to the invention of claim 2, in the invention of claim 1 , since the latching relay is configured with the width in the direction orthogonal to the magnetization direction of the permanent magnet being the same as the width of the hanging piece, the invention of claim 3 In the first aspect of the invention, the width in the direction perpendicular to the magnetization direction of the permanent magnet is made smaller than the width of the hanging piece, and the width in the width direction of the permanent magnet with respect to the center line in the width direction of the hanging piece. Since the monostable relay is constructed by deviating from the center line, latching relays and monostable relays can be manufactured with common parts and assembly, and the productivity is improved.
[0091]
The invention of claim 4 is the invention of any one of claims 1 to 3 , wherein the sub-base of the high-frequency block is made of a metal plate formed by stamping, so that the manufacture of the sub-base is simplified and lapping is used. Flatness can be ensured, and the production cost is reduced.
[0092]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the frame includes a ceiling piece, and both side pieces that are bent downward from both side ends in one direction of the ceiling piece. A step portion having a downward surface is formed at a lower portion of the leg piece extending downward from both ends of the base plate, and a recess portion in which the surface of the base is exposed is formed at a portion of the sub-base corresponding to each step portion. The side of the leg piece is welded to the side of the recessed part with the stepped part fitted and the downward surface of the stepped part placed on the top surface of the sub-base, so the frame can be positioned by the high frequency block The dimensional relationship between the drive mechanism block and the high frequency block can be stabilized.
[0093]
The invention of claim 6 is the invention according to any one of claims 1 to 5 , wherein the width of the armature is longer than the width of the armature, the central portion thereof is fixed to the lower surface of the central portion of the armature, and both ends of the armature are Rutotomoni comprising a central piece which projects on both sides, the contact spring comprising a spring piece which extends integrally along the armature from the longitudinal side ends of the armature of the central portion of the central piece, the frame, the ceiling Each side piece that is bent downward from one side end of each side of the ceiling piece, and protrudes downward from each protruding piece integrally projecting inwardly from the lower end of the central portion of the side piece on both sides of the frame Are inserted into holes provided at both ends of the center piece of the contact spring protruding from both sides of the armature, and the upper surface of the center of the armature is attracted by the downward magnetic pole face of the permanent magnet. rotatably supported, and contact a dowel formed on the lower surface of each protrusion Since the dowel is used as the center of rotation of the armature by abutting the upper surface of both ends of the central piece of the rod, the armature can be rotatably supported by the frame, and the center of rotation of the armature can be Therefore, the distance between the contact block and the contact surface of the armature is reduced, so that the friction caused by sliding against the contact block is reduced, and the rotational friction of the armature is reduced by the dowel and the operation is stabilized. Further, since the pushing force of the contact block is obtained by the armature spring, the gap with the magnetic pole surface does not vary, and the operation is more stable.
[Brief description of the drawings]
FIG. 1 is a reduced exploded perspective view of an embodiment constituting a latching relay of the present invention.
FIG. 2 (a) is a partially broken front view of the above.
(B) is a side view in which the above is partially broken.
FIG. 3 is an enlarged cross-sectional view of the same high-frequency block.
FIG. 4 is an enlarged top view in which the base of the above is partially broken away.
FIG. 5 is a front view of a yoke used for the above.
FIG. 6 is a front view of a yoke used in the embodiment constituting the monostable relay of the present invention.
FIG. 7 is a front view of the above monostable relay partially broken.
FIG. 8 is a partially broken front view of a reference example of the present invention.
FIG. 9 is a partially broken front view of a conventional example.
FIG. 10 is a partially broken front view of another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drive mechanism block 6a-6c Coaxial connector 3a, 3b Contact block 2 Armature 4 Subbase 8 Base 9 Cover 22 Electromagnetic block 24 Printed circuit board 26 Board block 27 Frame 29 Relay 32 Permanent magnet

Claims (6)

Consists of a base with three coaxial fixed contacts exposed on one side and a sub-base placed on the base on the exposed side of the fixed contacts, with the center fixed in the space formed on the opposing surface of the sub-base and the base A high-frequency device including first and second contact blocks having contacts arranged so as to be close to and away from each other between the contact and the fixed contact at one end and between the fixed contact at the center and the fixed contact at the other end. Block,
A frame made of a non-magnetic material fixed on the high-frequency block, an electromagnetic block fixedly arranged in the frame, and a central portion that is rotated by the magnetic action of the electromagnetic block. A drive mechanism block having an armature that pushes one contact block facing the end on the side close to the block side, and releases the push of the other contact block facing the separated end;
A board block comprising a printed circuit board that is disposed above the drive mechanism block and that is electrically connected to the electromagnetic block with at least a circuit for passing an excitation current to the electromagnetic block;
The cover is formed on the high frequency block so as to accommodate the substrate block and the drive mechanism block inside, and
The electromagnetic block consists of a flat plate part that is caulked and fixed to the inner surface of the ceiling piece of the frame, and both side edges of the central position in the longitudinal direction of the flat plate part. One end of the iron core is fixed to the inner surface of each end portion of the flat plate portion of the yoke, and the yoke consisting of two hanging pieces formed by bending to each other, and an excitation coil is wound around the iron core. Two sets of exciting coil portions suspended from the flat plate portion, and a permanent magnet having a magnetic pole surface at the upper and lower end surfaces inserted between the tips of the both hanging piece portions, and the magnetic pole surface at the lower end of the permanent magnet as an armature A coaxial relay characterized in that the magnetic pole surface at the end on the high frequency block side of the iron core of each exciting coil part is opposed to the both end parts of the armature at the center of each . 2. The coaxial relay according to claim 1 , wherein the latching relay is configured such that the width in the direction perpendicular to the magnetization direction of the permanent magnet is the same as the width of the hanging piece . Monostable by making the width in the direction perpendicular to the magnetizing direction of the permanent magnet smaller than the width of the hanging piece and deviating from the center line in the width direction of the permanent magnet with respect to the center line in the width direction of the hanging piece The coaxial relay according to claim 1 , wherein the coaxial relay is configured. The high frequency blocks in the sub-base are either coaxial relay in accordance of claims 1 to 3 comprises a metal plate formed by punching. The frame includes a ceiling piece, and both side pieces bent downward from both ends of one direction of the ceiling piece, and a step portion having a downward surface at a lower portion of a leg piece formed to extend downward from both ends of each side piece. And forming a recessed notch where the surface of the base is exposed at the portion of the sub-base corresponding to each stepped portion, and fitting the stepped portion into the notched portion and placing the downward surface of the stepped portion on the upper surface of the subbase The coaxial relay according to any one of claims 1 to 4, wherein a side surface of the leg piece is welded to a side surface of the recessed portion in a state of being depressed . A central piece that is longer than the width of the armature in the short direction, the central portion of which is fixed to the lower surface of the central portion of the armature and both ends project on both sides of the armature, and the central armature of the central piece A contactor spring comprising a spring piece integrally extended along the armature from both ends on the longitudinal side is provided, and the frame is formed by bending the ceiling piece and the ceiling piece so as to be bent downward from one end on both sides of the ceiling piece. Both ends of the center piece of the contact spring projecting from both sides of the armature, with ribs projecting downward from each projecting piece integrally projecting inwardly from the lower end of the center part of the side piece on both sides of the frame Each of these holes is inserted into the holes provided in the part, and the upper surface of the central part of the armature is attracted by the downward magnetic pole face of the permanent magnet to support the armature so that it can rotate. The dowels are rotating with the dowels contacting the upper surfaces of both ends of the center piece of the child spring. And then either coaxial relay of claims 1 to 5, characterized in that the.

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