JP2004031085A - Coaxial relay - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coaxial relay with enhanced reliability by preventing stress on a soldering portion of a terminal fitting and a printed circuit board even when force is applied from the outside to the terminal fitting exposed to the outside of a cover. <P>SOLUTION: In an insulator 250 of a terminal part 25 mounted on a top face of the printed circuit board 24 of a board block 26, a portion positioned between a ceiling face of the cover 9 and the printed circuit board 24 is used as a base part 250a with a substantially orthohexagonal planar cross sectional shape having an outside dimension that is larger than an inner diameter of a terminal lead-out hole 55 formed on the cover 9. A columnar protruding part 250b with a top face position that is higher than the ceiling face of the cover 9 to be attached and an outside dimension that can be inserted through the terminal lead-out hole 55 is formed on a top face center part of the base part 250a. A connection terminal 251a for external connection of the terminal fitting 251 is protruded upward from a top face of the protruding part 250b. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coaxial relay used for switching between a microwave and a line.
[0002]
[Prior art]
FIG. 10 shows a coaxial relay of this type invented by the present inventors. The coaxial relay shown in FIG. 10 is driven by a driving mechanism block 1 in which an electromagnetic block 22 and an armature block 23 are incorporated in a frame 27 and an armature 2 of the armature block 23 provided corresponding to the driving mechanism block 1. The SMA type coaxial connector 6... In which fixed contacts opened and closed by the metal sub-base 4 provided with the contact blocks 3 a and 3 b and the contacts 5 of the contact blocks 3 a and 3 b are respectively formed on the upper end surface of the center conductor 7. A high-frequency block composed of a screwed metal base 8, an excitation circuit and an indicator circuit for the drive mechanism block 1 are provided, and a substrate block 26 disposed above the drive mechanism block 1 and a lower surface opening made of, for example, metal. And a box-shaped cover 9. On the upper surface of the substrate block 26, there are provided a plurality of terminals for connecting an external excitation signal to the excitation circuit and a plurality of terminal portions 25 for extracting an operation state signal from the indicator circuit. The terminal portion 25 includes an insulator 250 for insulating the terminal lead-out hole 55 of the cover 9 and a terminal fitting 251 inserted into the insulator 250.
[0003]
[Problems to be solved by the invention]
By the way, in the above-described conventional example, the insulator 250 of the terminal portion 25 has a cylindrical shape, and is formed to have an outer diameter smaller than the inner diameter of the terminal lead-out hole 55 in order to insert the terminal lead-out hole 55. When a tensile force is applied upward to the terminal fitting 251 protruding out of the cover 9, stress is applied to a soldered portion of the terminal fitting 251 to the printed circuit board 24, and there is a problem that the soldered portion is peeled off. .
[0004]
The present invention has been made in view of the above-described problems, and has as its object the purpose of soldering a terminal fitting to a printed circuit board even when a force is applied to the terminal fitting exposed to the outside of the cover from the outside. It is an object of the present invention to provide a coaxial relay with improved reliability by preventing stress from being applied to a mounting portion.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a high-frequency block provided with a coaxial contact and a contact for opening and closing the contact, and an armature disposed above the high-frequency block and driving the contact of the high-frequency block for opening and closing, A drive mechanism block including an electromagnetic block, a printed circuit board on which a circuit for exciting the electromagnetic block is mounted, and a board block including a connector mounted on the printed board, the drive mechanism block is configured such that the drive block is directed upward. At least the coil terminals of the excitation coil section and the indicator terminals for extracting the operation state signals are projected, and the ends of these coil terminals are inserted through the printed circuit board of the board block and soldered and fixed to electrically connect the circuit of the printed circuit board. And a printed circuit board on the high-frequency block. In a coaxial relay in which a metal cover is attached on a high-frequency block so as to house a board block, a coil terminal is provided on a top surface of the printed board through a circuit portion which is fixed by being soldered to the printed board and formed on the printed board. A plurality of terminal portions having terminal fittings to be connected to the indicator terminals are provided. The terminal portions are placed on the upper surface of the printed circuit board, and the insulator is inserted into the insulator and protruded downward from the lower surface of the insulator. A terminal fitting having a terminal soldered to the printed circuit board and a connection terminal protruding above the upper surface of the insulator,
The insulator has an external dimension that cannot be inserted into a terminal lead-out hole formed in the cover from the lower surface placed on the printed circuit board to a position slightly lower than the ceiling surface of the cover to be attached. A protrusion is formed at the center of the upper surface of the base at a position higher than the ceiling surface of the cover to be attached, and has an external dimension that can be inserted into the terminal lead-out hole. The connection terminal of the terminal fitting protrudes above the upper surface of the portion.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to an embodiment.
[0007]
This embodiment drives a contact using a drive mechanism including a polarized electromagnetic mechanism as in the above-described conventional example. As shown in FIG. 1, the electromagnetic block 22 and the armature block 23 are incorporated in a frame 27. A metal sub-base 4 provided with two sets of drive mechanism blocks 1 and contact blocks 3a and 3b provided corresponding to each drive mechanism block 1 and driven by armatures 2 of respective armature blocks 23; A high frequency block composed of a metal base 8 screwed with an SMA type coaxial connector 6 which comprises fixed contacts opened and closed by the respective contacts 5 of the contact blocks 3a and 3b on the upper end surface of the center conductor 7, respectively; And a substrate block 26 disposed above the drive mechanism block 1 and a lower surface opening such as gold. It consists of manufacturing of box-shaped cover 9.
[0008]
Here, the insulator 250 of the terminal portion 25 mounted on the upper surface of the printed board 24 of the board block 26 is a portion located between the ceiling surface of the cover 9 and the printed board 24 as shown in FIGS. A base 250a having a substantially regular hexagonal (or cylindrical) cross-sectional shape having an outer shape (outer diameter) larger than the inner diameter of the terminal lead-out hole 55 formed in the cover 9 is provided at the center of the upper surface of the base 250a. A column-shaped protrusion 250b having an upper surface position higher than the ceiling surface of the cover 9 to be attached and having an outer diameter dimension capable of being inserted into the terminal lead-out hole 55 is formed, and is formed above the upper surface of the protrusion 250b. The connection terminal 251a for external connection of the terminal fitting 251 is projected.
[0009]
Therefore, even if a force is applied to pull the terminal fitting 251 upward from the outside, and the printed circuit board 24 attempts to bend upward, the upper surface of the base 250 a of the insulator 250 hits the ceiling surface of the cover 9 to restrict the bending of the printed circuit board 24. Therefore, the stress applied to the soldering portion between the printed circuit board 24 and the soldering terminal 251b below the terminal fitting 251 is dispersed, and as a result, peeling of the soldering portion is prevented.
[0010]
Now, the configuration of the present embodiment will be described in further detail. The metal base 8 is formed by cutting into a substantially square planar shape, and as shown in FIG. Four sets of concave grooves 80 are formed in parallel with the sides, and the longitudinal directions of adjacent concave grooves 80, 80 are mutually 90 ° directions, and their respective ends are connected to form a square annular groove as a whole. are doing. Then, four mounting holes 10 are shown in FIG. 3B from the rear surface (lower surface) to the surface (upper surface) of the metal base 8 so as to correspond to the corners of the annular groove, which is the connecting portion of the concave grooves 80. Through. These mounting holes 10 have female screw portions 10a formed in the lower part.
[0011]
The SMA type coaxial connectors 6 are screwed into the female screw portions 10a of the mounting holes 10 from the back side of the metal base 8, respectively, and the center conductors 7 of the coaxial connectors 6 are recessed from the upper end openings 10b of the holes 10 by the grooves 80. It is projected inside. The upper end surfaces of these center conductors 7 are at the same height and constitute fixed contacts.
[0012]
As shown in FIG. 3 (b), the coaxial connector 6 has a metal cylindrical outer shell conductor 11 having an external thread formed on the outer periphery, and a fluororesin insulator 12 inserted inside the outer shell conductor 11. And a central conductor 7 inserted into the central through-hole of the insulator 12 and having a tip protruding to the outside, and a constricted portion formed near the base of the projecting portion of the central conductor 7 being pressed into the central hole, An annular sub-bushing 13 made of annular PCTFE (ethylene trifluoride) is press-fitted into an upper end opening of the outer shell conductor 11. The diameter of the upper end opening 10 b is substantially the same as the outer diameter of the sub-bushing 13. Inside diameter.
[0013]
The sub-base 4 is formed by stamping a metal plate. When the sub-base 4 is mounted at a fixed position on the base 8 as shown in FIG. A through-hole 14 that penetrates up and down is formed at a position corresponding to an intermediate position between the center conductors 7 of the coaxial connectors 6. An upper end of a through-hole 14 is provided with a drive member 16 made of a wholly aromatic liquid crystal polymer (LPC) resin, which is thermally bonded to a contact spring 15 whose upper end is disposed on the upper surface side of the sub-base 4 and is constantly urged upward. It is inserted freely when moving in the direction.
[0014]
As shown in FIG. 4, the driving body 16 is fixed at the lower end of the sub-base 4 projecting to the lower surface side by insert (simultaneous) molding to fix the center of the contact 5 made of a flat conductor as shown in FIG. Together, they constitute the contact block 3a or 3b, respectively.
[0015]
Here, the contact blocks 3a, 3b corresponding to the concave grooves 80, 80 located on both sides of a pair of diagonal lines (the vertical center line in FIG. 3C) of the base 8 are driven by one drive mechanism block 1. Each of the contacts 5 of the pair of contact blocks 3a and 3b is adapted to move up and down in the concave groove 80 of the base 8 when the driver 16 moves up and down. As shown in FIG. 3B, the contact 5 opposes the upper end surfaces of the center conductors 7, 7 of the coaxial connectors 6, 6 whose lower surfaces at both ends protrude into both ends of the corresponding concave groove 80, as shown in FIG. During the movement, the upper ends of the central conductors 7, 7 of the coaxial connectors 6, 6 are brought into contact with each other to turn on the coaxial connectors 6, 6. The contact of the contact blocks 3a and 3b by the contact 5 is alternately switched by the armature 2 of the corresponding drive mechanism block 1.
[0016]
The contact spring 15 for urging the driving body 16 of the contact block 3a or 3b is formed in a Japanese character shape as shown in FIG. 3C by punching and bending with a die. The central piece 15a is bent so that the portion is positioned higher than both ends thereof as shown in FIG. 3B, and both end pieces 15b, 15b parallel to the central piece 15a are positioned such that the central portion is lower than both ends. The upper end 16a of the driving body 16 is inserted from below into an insertion hole 18 provided at the center of the center piece 15a, and is heat-fixed and provided at the center of the both end pieces 15b. The fixing screw 17 is inserted from above into an insertion hole (not shown).
[0017]
The contact spring 15 is screwed into a screw hole 21 on the base 8 side through a through hole (not shown) for forming a fixing screw 17 penetrating the center of both end pieces 15b, 15b in the sub-base 4. Thus, the sub-base 4 is fixed to the base 8 together with the sub-base 4, and the fixing screw 17 is also used as a fixing screw of the sub-base 4 to improve workability.
[0018]
As described above, since the contact spring 15 can be stably pushed upward, it is not necessary to regulate the directions of the driving bodies 16, 16 of the contact blocks 3a, 3b by the through holes 14 of the sub-base 4, so that the driving body 16 and the driving body 16 can be penetrated. By increasing the gap between the hole 14 and the inner surface, friction at this portion can be eliminated, resulting in more stable operation.
[0019]
Here, as shown in FIG. 3 (c), the contact springs 15 corresponding to the respective contact blocks 3a and 3b are attached at an angle of approximately 45 ° with respect to the longitudinal direction of the concave groove 80, and the fixing screws for the adjacent contact springs 15 are fixed. 17 are fixed so that the directions of the both end pieces 15b and 15b are 90 ° with each other so that the insertion positions of 17 are not adjacent to each other and the tightening workability is not deteriorated.
[0020]
As shown in FIG. 5, 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 holding the electromagnetic block 22 and the armature block 23. Is done.
[0021]
The electromagnetic block 22, which is a main component of the drive mechanism block 1, includes a yoke 29, two sets of exciting coil units 30, a permanent magnet 32, and the like, as shown in FIG. The yoke 29 is formed by punching and bending a magnetic material such as magnetic soft iron. The yoke 29 includes a flat plate portion 29a and a drooping piece portion 29b which is bent downward from a central portion in the longitudinal direction of the flat plate portion 29a and hung down. The upper ends of the iron cores 31 of the exciting coil portions 30 are inserted into holes provided at both end positions symmetrical with respect to the center in the longitudinal direction of the flat plate portion 29a and fixed by caulking. A permanent magnet 32 is bridged between the lower ends of the hanging pieces 29b, 29b to form a bistable polarized electromagnet structure.
[0022]
In this arrangement, the permanent magnet 32 is positioned at the lower end of the hanging piece portion 29b together with the plate width of the hanging piece portion 29b and the upper end edges of both sides of the plate-shaped permanent magnet 32 are engaged with the step portion 34. It is done by doing.
[0023]
Here, the center of the hanging piece portion 29b coincides with the center of the flat plate portion 29a, and the respective distances from the center to both side edges are formed to be equal. In this embodiment constituting the latching relay, the hanging piece as the permanent magnet 32 is used. A portion having a width extending over both side edges of the portion 29b and having magnetic poles on upper and lower surfaces is used.
[0024]
The excitation coil section 30 is configured by winding an excitation coil 35 around a coil bobbin 33 through which an iron core 31 is inserted, and a pair of flange sections 33 a on the upper side of the coil bobbin 33 of each excitation coil section 30 connected to both ends of the excitation coil 35. The coil terminals 36, 36 are protruded. These 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.
[0025]
A fixing base 33c for fixing the lower part of the indicator terminal 37 is provided at the outer end of the lower flange portion 33b, and supports the indicator terminal 37.
[0026]
These indicator terminals 37, 37 are extended in a parallel form using the empty space of the electromagnetic block 22, and the upper portion is located between the projecting portions of the coil terminals 36, 36 of the upper flange portion 36a. The upper end protrudes upward from the flat plate portion 39a of the yoke 39 while being held.
[0027]
The pair of indicator terminals 37, 37 are formed by bending the lower ends thereof in both sides to form fixed contact pieces 38, 38, and an indicator spring 39 attached to the pair of fixed contact pieces 38, 38 and the upper surface of the armature 2. When the armature 2 rotates counterclockwise in one direction (for example, FIG. 5A), the movable contact pieces 40, 40 on both sides contact the fixed contact pieces 38, 38, respectively. The contact between the fixed contact pieces 38, 38 on both sides is turned on and off through an indicator spring 39, and the on and off states between the pair of coaxial connectors 6, 6 by the contacts 5 of the contact block 3a or 3b are shown. The signal can be extracted.
[0028]
The indicator spring 39 is fixed by welding the plate surface to the upper surface of the end portion of the armature 2 which is attracted and opposed to the lower pole surface of the iron core 31 of the exciting coil portion 30, and also serves as a rescheduling plate. I have. The portion of the movable contact piece 40 is gold-plated or inlaid in a tape shape.
[0029]
The armature block 23 includes the armature 2 made of a magnetic material, the above-described indicator spring 39 fixed to the upper surfaces of both ends of the armature 2 by welding, and the armature spring 19 attached to the lower surface. Numeral 19 denotes a central piece 19b formed in a direction orthogonal to the longitudinal direction of the armature 2 as shown in FIG. 5, and both sides of the center of the central piece 19b are integrally formed so as to be parallel to the longitudinal direction of the armature 2. The center piece 19b is formed of a pair of spring pieces 19a and the like. The center piece 19b has a substantially U-shaped cross section so as to protrude upward, and a dowel 90 protruding from the lower surface side of the armature 2 is formed at the center. By inserting and caulking into the hole 91 from above, it is fixed to the center of the lower surface of the armature 2, and both ends are projected to both sides of the armature 2. In this state, a gap is formed between the spring piece 19a on both sides of the central piece 19b and the lower surface of the armature 2 so that the spring piece 19a can bend. The spring can be adjusted by projecting in the direction.
[0030]
Square holes 42 into which projections 43 projecting from the frame 27 are loosely fitted are provided at both ends of the center piece 19b projecting from both sides of the armature 2.
[0031]
The frame 27 is formed by punching and bending a non-magnetic metal plate. As shown in FIG. 5, the ceiling piece 27 a and the lower part of the ceiling piece 27 a are oriented downward from the center of one short side end of the ceiling piece 27 a. And a side piece 27c bent downward from a side end opposite to the side piece 27b formed by bending, and the electromagnetic block 22 configured as described above in the space between the ceiling piece 27a and the side pieces 27b, 27c. And the armature block 23 configured as described above is assembled below the electromagnetic block 22.
[0032]
The electromagnetic block 22 is attached to the frame 27 by lowering four dowels 44 pressed from the lower surface onto the upper surface of the yoke 39 and projecting upward into insertion holes (not shown) formed corresponding to the ceiling piece 27a side. In this state, the upper surface of the yoke 39 abuts against the lower surface of the ceiling piece 27a, and in this state, the dowel 44 protruding from the insertion hole is caulked and fixed. At this time, the coil terminal 36 and the indicator terminal 37 that protrude upward from both ends of the electromagnetic block 22 respectively protrude upward from outside both ends of the ceiling piece 27a. In addition, the upper end of the iron core 31 of each excitation coil unit 30 fits into the escape hole 47 provided to face the ceiling piece 27a.
[0033]
Further, at the center lower end of both side pieces 27b located slightly below the lower surface of the permanent magnet 32 of the electromagnetic block 22, projections 48, 48 are formed by bending inwardly, and the armature 2 is provided between the projections 48, 48. And a projection 43 bent downward from the tip of each of the projecting pieces 48, 48 is inserted from above into a square hole 42 at both ends of the central piece 19b of the armature spring 19 projecting from both sides of the center of the armature 2. Since the armature block 23 is fitted and pulled upward by the magnetic force of the permanent magnet 32, the projection 43 does not fall out of the square hole 42, the armature block 23 is held by the frame 27, and the quality is stable. .
[0034]
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.
[0035]
Thus, two sets of drive mechanism blocks 1 and 1 are symmetrically arranged above the corresponding pair of contact blocks 3a and 3b of the high frequency block. In this arrangement, the protrusions 33d integrally projecting from the lower surfaces of the fixed bases 33c on both sides of the excitation coil unit 30 are fitted into the recesses 4c formed on the sub base 4.
[0036]
Then, the foot pieces 27d, 27d bent outward at the lower ends on both sides of the side piece 27b of the frame 27 to which the drive mechanism block 1 is assembled correspond to a pair of corners of the sub base 4 as shown in FIG. The lower end steps 27e, 27e are placed on the serve base 4 with the projections 4a formed therebetween. Then, a foot piece 27d is fixed to the side surface of the protruding portion 4a by welding. Further, the downward face of the step 27g formed at the base lower end of the protruding piece 27f bent inward at the lower end on both sides of the one side piece 27c is placed on the upper surface of another pair of cut-off corners 4b of the serve base 4, and The piece 27f is cut off and arranged along the outer surface of the corner 4b. Then, the protruding piece 27f is cut off and fixed to the side surface of the corner 4b by welding.
[0037]
By this arrangement and fixation, the upper end of the driving body 16 of each contact block 3a, 3b faces the lower surface of the opposing armature spring 19 of the armature spring 19, for example, in the state shown in FIG. The permanent magnet 32, the yoke 29, and the iron core 31 of the exciting coil unit 30 form a closed magnetic path, and the spring piece 19 a of the armature spring 19 at one end of the armature 2 that is attracted to the iron core 31. The upper end of the driver 16 of the opposing contact block 3a moves upward, while the driver of the contact block 3b opposes the spring piece 19a of the armature spring 19 on the other end of the right armature 2 that is not attracted. The upper end of 16 resists the upward bias of the contact spring 15 and is pushed downward by the armature 2 via the spring piece 19a.
[0038]
That is, the contact block 3a is urged upward by the contact spring 15, and the driving body 16 moves upward, and both ends of the contact 5 are separated from the upper end surfaces of the center conductors 7, 7 of the pair of coaxial connectors 6, 6. The other contact block 3b corresponds to the contact block 3a in which the driving body 16 moves downward and both ends of the contact 5 are in contact with the upper end surface of the center conductor 7 of the coaxial connector 6. The space between the pair of coaxial connectors 6 and 6 is off, and the space between the coaxial connectors 6 and 6 corresponding to the contact block 3b is on.
[0039]
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.
[0040]
In this case, the tip of the coil terminal 36 and the tip of the indicator terminal 37 protruding above the ceiling piece 27a of the frame 27 are inserted into holes (not shown) provided to correspond to the printed board 24 of the board block 26, respectively. Then, the printed circuit board 24 is soldered to the printed circuit board 24, and the printed circuit board 24 is disposed and fixed above the ceiling piece 27a, and is electrically connected to a circuit mounted on the printed circuit board 24.
[0041]
The board block 26 is composed of the printed board 24 and the plurality of terminal portions 25 on which the printed board 24 is mounted as described above. The terminal portion 25 is a cylindrical insulating base 250 and terminal fittings inserted into the insulating base 250. 251 and a drive signal (including an excitation current) for the excitation coil unit 30 input from an external circuit, and a drive signal for outputting an operation state signal from the indicator terminals 37 and 37 to the outside.
[0042]
Here, one indicator terminal 37 in one drive mechanism block 1 and one indicator terminal 37 at the back-to-back position of the other drive mechanism block 1 are set as a common output, and the other indicator in one drive mechanism block 1 is used. The terminal 37 is a normally closed terminal, the other indicator terminal 37 in the other drive mechanism block 1 is a normally open terminal, and the fixed contact pieces 38, 38 of these indicator terminals 37, 37 and the movable contact piece 40 of the indicator spring 39. , 40 by the contact 5 of the contact blocks 3a, 3b by the armatures 2, 2 corresponding to the drive mechanism blocks 1, 1 for the on / off operation between the pair of coaxial connectors 6, 6. The signal is taken out to the outside.
[0043]
After the arrangement and fixing of the frame 27 are completed, the coaxial relay of the present embodiment is completed by attaching the metal cover 9 on the base 8 as shown in FIG. In FIG. 9, reference numeral 9a denotes a mounting piece for mounting the present embodiment on a predetermined mounting surface, and 9b denotes a mounting hole for inserting a screw or the like.
[0044]
In attaching the cover 9, the insulating base 250 of each terminal portion 25 is inserted from the inside into the terminal lead-out hole 55 provided on the ceiling surface of the cover 9 to connect the terminal fitting 251 of the connector 25 for external connection. The terminal 251a is projected outside the cover 9.
[0045]
The cover 9 is attached so that its lower inner peripheral surface is along the outer peripheral surface of the base 8, and is finally fixed to the base 8 by screws 60 from the outside.
[0046]
Next, the operation of the present embodiment assembled and completed as described above will be briefly described.
[0047]
The end of the armature 2 of each drive mechanism block 1 is away from the opposing magnetic pole surface of the iron core 31, that is, in FIG. 1A, the excitation on the right side when each drive machine block 1 is viewed from the front. In a state where the left end of the armature 2 is separated from the magnetic pole surface of the iron core 31 in the exciting coil 35 of the coil unit 30, when an exciting current in a direction to generate a magnetic flux in a direction to attract the upper surface of the left end is applied, The right end of the armature 2 of the drive mechanism block 1 is attracted to the opposing magnetic pole faces of the iron core 31, and the armature 2 is rotated by the pushing-up force of the driving body 16 by the contact spring 15 on the contact block 3b side.
[0048]
Due to this rotation, in each drive mechanism block 1, 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 excitation coil unit 30 via the indicator spring 39, and the iron core 31, A closed magnetic path of the yoke 29, the permanent magnet 32, the armature 2, and the iron core 31 is formed, and the right end of the armature 2 is attracted to the magnetic pole surface of the iron core 31 of the excitation coil unit 30 on the right side.
[0049]
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.
[0050]
By the above operation, the contact 5 on the contact block 3b side corresponding to the armature 2 of each drive mechanism block 1 is separated from the upper end surfaces of the center conductors 7, 7 of the corresponding pair of coaxial connectors 6, 6, and the corresponding pair of coaxial connectors 6, 6 is opened. The coaxial connectors 6, 6 are turned off.
[0051]
On the side of the contact block 3a corresponding to the armature 2 of each drive mechanism block 1, due to the above rotation of the armature 2, the right end of the armature 2 is pushed up by the contact spring 15 via the spring piece 19a of the armature spring 19. The driving body 16 is pushed downward against the contact, and the contact 5 at the lower end of the driving body 16 contacts the upper end surfaces of the central conductors 7 and 7 of the corresponding pair of coaxial connectors 6 and 6 to form the coaxial connectors 6 and 6. Turn on the interval.
[0052]
Meanwhile, as shown in FIG. 1A, the movable contact piece 40 of the individual spring 39 on the contact block 3a side which has been separated from the fixed contact piece 38 of the one indicator terminal 37 of one drive mechanism block 1 has a fixed contact. The movable contact piece 40 of the indeed spring 39 on the contact block 3b side that has come into contact with the piece 38 and that has been separated from the fixed contact piece 38 comes into contact with the fixed contact piece 38.
[0053]
At the same time, the excitation is performed so as to operate in the opposite direction to the drive mechanism block 1 on the opposite side, so that the independent spring of the contact block 3b which has contacted the fixed contact piece 38 of the indicator terminal 37 of the drive mechanism block 1 When the movable contact piece 39 of the indent spring 39 of the contact block 3a on the side of the contact block 3a, which has been in contact with the fixed contact piece 38, is separated from the fixed contact piece 38. Become.
[0054]
Therefore, an operation state signal corresponding to the operation of the drive mechanism blocks 1 and 1 is externally output. The operation state can be monitored by the operation state signal.
[0055]
If an exciting current in a direction to attract the right end of the armature 2 is applied to the contact block 3a side, that is, the exciting coil 35 of the exciting coil unit 30 on the left side in FIG. Then, the state returns to the state shown in FIG.
[0056]
Although the above configuration is a bistable latching relay, a fail-safe monostable relay can be configured only by changing the width of the permanent magnet 32.
[0057]
In other words, the width of the permanent magnet 32 corresponding to the longitudinal direction of the yoke 29 may be smaller than the width of the hanging piece 29b, and may be disposed so as to approach one side. In this case, two excitations, left and right, are shown. FIG. 7 (b) shows the positional relationship between the printed circuit board 24 and the base 8 of the high frequency block, and FIG. 8 (a) shows the driving mechanism blocks 1, 1 and the bases 4 and 4 of the high frequency block. FIG. 8B shows the positional relationship with the sub-base 8, and FIG. 8B shows the positional relationship between the electromagnetic block 22 and the base 4 and the sub-base 8 of the high-frequency block. FIGS. 7 and 6 show the positional relationship. It is a diagram and is different from an actual top view seen from the top in a state where these blocks are assembled.
[0058]
【The invention's effect】
According to a first aspect of the present invention, in the coaxial relay configured as described above, the upper surface of the printed circuit board is connected to the coil terminal and the indicator terminal through a circuit portion fixed to the printed circuit board by soldering and formed on the printed circuit board. A plurality of terminal portions provided with terminal fittings are provided, and the terminal portions are inserted into the insulator, the lower surface of which is mounted on the upper surface of the printed circuit board, and the terminal portions are projected downward from the lower surface of the insulator and soldered to the printed circuit board. Terminal and a terminal fitting having a connection terminal protruding above the upper surface of the insulator, and the insulator extends from the lower surface placed on the printed circuit board to a position slightly lower than the ceiling surface of the cover to be attached. A base having an external dimension that cannot be inserted into a terminal lead-out hole formed in the cover is formed at the center of the upper surface of the base. The upper surface of the protruding portion has an outer dimension that is higher than the upper surface of the protruding portion and has an outer dimension that can be inserted into the terminal lead-out hole, and the connection terminal of the terminal metal protrudes above the upper surface of the protruding portion. When a force is applied to pull the printed circuit board upward from the outside, and the printed circuit board attempts to bend upward, the upper surface of the base of the insulator hits the ceiling surface of the cover to restrict the bending of the printed circuit board 24. The stress applied to the soldering portion with the soldering terminal at the lower portion of the metal fitting is dispersed, and as a result, peeling of the soldering portion is prevented.
[Brief description of the drawings]
FIG. 1A is a front sectional view of one embodiment of the present invention.
(B) is a side sectional view of the same.
FIG. 2 is a front view of a terminal unit used in the embodiment.
FIG. 3A is a top view showing a positional relationship between a base and a contact of a high-frequency block used in the power supply system.
(B) is a sectional view of the high-frequency block used in the above.
(C) is a top view of the high frequency block used for the same as the above.
FIG. 4 is a side view of a member including a contact and a driving body used in the embodiment.
FIG. 5 (a) is a front view of a drive mechanism block used in the embodiment.
(B) is a side view of the drive mechanism block used for the same as the above.
(C) is a bottom view of the drive mechanism block used in the above.
FIG. 6 is an exploded perspective view of the electromagnetic block and the armature block according to the first embodiment.
FIG. 7A is an explanatory diagram of a positional relationship between a high-frequency block and a frame according to the first embodiment.
(B) is an explanatory view of a positional relationship between the high-frequency block and the printed circuit board according to the first embodiment.
FIG. 8A is an explanatory diagram of a positional relationship between the high-frequency block and the drive mechanism block according to the first embodiment.
(B) is an explanatory view of a positional relationship between the high-frequency block and the electromagnetic block in the above.
FIG. 9 is an external front view of the same.
FIG. 10 is a front sectional view of a conventional example.
[Explanation of symbols]
9 Cover
24 Printed circuit board
25 Terminal
250 insulation
250a base
250b protrusion
251 terminal fitting
251a connection terminal
251b terminal
55 Terminal outlet hole
26 Board Block

Claims (1)

A high-frequency block provided with coaxial contacts and contacts for opening and closing the contacts; an armature disposed above the high-frequency block for driving the contacts of the high-frequency block to open and close; a drive mechanism block having an electromagnetic block; And a board block composed of a connector mounted on the printed circuit board, and the drive mechanism block has an indicator for taking out the coil terminals and operating state signals of the exciting coil section of the electromagnetic block upward. At least the terminal is projected, and the tip of this coil terminal is inserted through the printed circuit board of the board block and soldered and fixed to electrically connect with the circuit of the printed circuit board and support the printed circuit board. High frequency block so that drive mechanism block and substrate block In a coaxial relay in which a metal cover is attached on the upper surface of the printed circuit board, the upper surface of the printed circuit board is provided with terminal fittings that are connected to the coil terminal and the indicator terminal through a circuit portion fixed to the printed circuit board and fixed to the printed circuit board. A plurality of terminal portions are provided. The terminal portion includes an insulator whose lower surface is mounted on the upper surface of the printed circuit board, a terminal inserted into the insulator, protruding downward from the lower surface of the insulator, and soldered to the printed circuit board. A terminal fitting having connection terminals protruding above the upper surface of the body,
The insulator has an external dimension that cannot be inserted into a terminal lead-out hole formed in the cover from the lower surface placed on the printed circuit board to a position slightly lower than the ceiling surface of the cover to be attached. A protrusion is formed at the center of the upper surface of the base at a position higher than the ceiling surface of the cover to be attached, and has an external dimension that can be inserted into the terminal lead-out hole. A connection terminal of the terminal fitting protrudes above an upper surface of the portion.

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