JP5065096B2 - Case / terminal block attachment / detachment structure - Google Patents

Description

  The present invention relates to a case for housing a substrate and a detachable structure of a terminal block connected to a terminal of the substrate.

  As a structure for detachably fixing a terminal block having a slot portion (edge connector socket) to be connected to a terminal (edge connector) of the board to a case that accommodates the board of the electronic device, a screwed type, Alternatively, a lever type structure is used.

  The screw-type attachment / detachment structure allows the slot portion of the terminal block to be inserted into the attachment hole formed in the attachment surface of the terminal block of the case that accommodates the board, and both ends of the terminal block body can be attached to and detached from the case with screws. It is to be fixed to.

  In addition, there is a lever-type attachment / detachment structure in which a snap-fit type locking lever is integrally formed at both ends of a terminal block, and an engagement recess is formed at both ends of a mounting hole of the case. The lever is formed along the end surface of the terminal block, the base end portion is connected to the end portion of the terminal block, the locking claw is formed at the tip, and the engagement release portion (pressing projection) is formed at the substantially center. Part) is formed.

  When attaching the terminal block to the case, press the disengagement parts at both ends with your fingertips to push the locking claws inward, release the pressing force after mounting on the case, and engage the locking claws with the engagement recesses in the case. Fix together. When removing the terminal block from the case, the engagement release portions at both ends are pushed to push the locking claws inward, the engagement with the engagement recesses of the case is released, and the front is pulled out.

In addition, in a card edge type terminal block connector consisting of a terminal block connector body that is inserted into and connected to the card edge terminal of the board, a slidable slider is provided on the back of the terminal block connector body, and the case is moved by sliding the slider. There has also been proposed a structure in which the fixed lock between the terminal block connector body and the fixed lock is released (for example, see Patent Document 1).
JP 2002-203616 A (page 4, FIG. 1)

  However, the screw-type attachment / detachment structure requires a tool such as a screwdriver for installation and removal, and takes time and effort. There is also a problem that the space of the terminal block becomes large. Further, the lever-type attachment / detachment structure has a problem that the space for the terminal block is increased because the lever is formed on the terminal block side.

  In addition, the structure described in Patent Document 1 has two operations (2 actions) in which when removing the terminal connector body, the slider is moved to release the fixing lock with the case, and then the terminal connector body is pulled out of the case. ) Is required and operability is poor. Moreover, since it cannot mount | wear with the slider pressed, it is difficult to operate if it is not used. Furthermore, the space of the terminal connector body is increased.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a case and terminal block attachment / detachment structure that has good operability and space saving when attaching / detaching a case for housing a substrate and a terminal block attached to the case and connected to a terminal of the substrate. Is to provide.

In order to solve the above-described problem, the attachment / detachment structure of the case and the terminal block according to claim 1 of the present invention includes:
In a case and terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, wherein both ends of the terminal block are detachably attached to both ends of the case ,
Forming a Kakarigo凹portion at one end of the case,
The Kakarigo凹portion engageable with the engaging projection of the casing is formed at one end of the terminal block,
An engagement hole is formed at the other end of the case,
A detachable structure of the engaging hole and the engaging or to case the terminal block provided with a disengagable engagement lever the other end of the terminal block,
The engaging lever has a locking claw that engages with the engaging hole of the case at one end, and a substantially central portion has a spring force that engages the engaging claw with the engaging hole of the case. An engagement release portion for releasing the engagement between the locking claw and the engagement hole against the spring force is formed at the other side end portion. The convex portion is characterized in that a cut portion is provided from the distal end side to the proximal end side to form a cantilever shape and bendable .

  When the terminal block is attached to the case, the engagement protrusion or engagement recess formed at the one end of the terminal block is engaged with the engagement recess or engagement protrusion formed at the one end of the case. Next, the terminal block is rotated to the case side with this engaging portion as a rotation fulcrum, the other end portion of the terminal block is brought into contact with the other end portion of the case, and the other end portion of the terminal block is formed. The engaged lever is engaged with the engagement hole of the case. Thereby, a terminal block can be attached to a case.

  When removing the terminal block from the case, the engagement between the engagement lever at the other end of the terminal block and the engagement hole of the case is released, and the engagement between the one end of the case and the terminal block is used as a fulcrum. The terminal block is rotated forward and the other side of the case and the other side of the terminal block are disengaged while being pulled out by hand. Thereby, a terminal block can be removed from a case by one operation (1 action).

Further, the locking claw of the terminal block is engaged with the engagement hole of the case by a spring force when the terminal block is attached to the case. Thereby, engagement with the latching claw of an engagement lever and an engagement hole is hold | maintained. When releasing the engagement between the engaging claw and the engaging hole, if the engaging release portion of the engaging lever is pushed against the spring force, the engaging claw at the distal end is disengaged from the engaging hole in the case. The engagement is released. Thereby, the engagement between the case and the terminal block is released.

Moreover, the attaching / detaching structure of the case and the terminal block according to claim 2 of the present invention is as follows.
In a case and terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, wherein both ends of the terminal block are detachably attached to both ends of the case ,
An engagement recess is formed at one end of the case,
Forming an engaging convex portion that can be engaged with an engaging concave portion of the case at one end of the terminal block;
An engagement hole is formed at the other end of the case,
A terminal block detachable structure provided with an engagement lever that can be engaged with or released from the engagement hole at the other end of the terminal block,
The engaging lever has a locking claw that engages with the engaging hole of the case at one end, and a substantially central portion has a spring force that engages the engaging claw with the engaging hole of the case. An engagement release portion for releasing the engagement between the engagement claw and the engagement hole against the spring force is formed on the other end portion. A notch is provided from the opening for engaging the terminal block to the vicinity of the front of the engaging recess, so that it can be bent from the opening to the vicinity of the front of the engaging recess .

Moreover, the attachment / detachment structure of the case and the terminal block according to claim 3 of the present invention is as follows.
In a case and a terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, both ends of the terminal block are detachably attached to both ends of the case,
A locking lever that is detachably locked to both end surfaces of the terminal block is provided at both ends of the case, respectively.
A detachable structure of a terminal block and a case in which engaging portions that engage with the locking lever are formed on both end faces of the terminal block,
The locking lever provided on one end surface of the case is
A locking claw that engages with an engaging recess formed on one end surface of the terminal block is formed at the distal end,
The base end is supported so that the locking claw can be rotated along one side end surface of the terminal block,
The locking lever provided on the other end surface of the case is
A locking claw that engages with an engaging recess formed on the other end surface of the terminal block is formed at the distal end,
The substantially central portion is supported so that the locking claw can be rotated along the end surface of the terminal block,
The base end portion can be locked to a stopper formed in the case, and the locking claw is held in a state of being engaged with the engagement recess .

  When attaching the terminal block to the case, the terminal block is attached to the case by engaging the locking levers at both ends of the case with the engaging portions provided at the both end faces of the terminal block. When removing the terminal block from the case, the engagement between the locking levers at both ends of the case and the engaging portions at both ends of the terminal block is released. Thereby, a terminal block can be removed from a case.

Also, when attaching the terminal block to the case, the locking lever provided on the one side end surface of the case rotates the locking claw at the distal end along the one side end surface of the terminal block with the base end as the rotation fulcrum It is made to engage with the engagement recessed part currently formed in the one side end surface of a terminal block. The locking lever provided on the other side end surface of the case is formed on the other side end surface of the terminal block by rotating the locking claw at the front end along the other side end surface of the terminal block with the substantially central portion as a rotation fulcrum. The engaging recess is engaged. In this state, the base end portion of the locking lever is held at the engagement position by the stopper of the case, and the locking claw is prevented from being detached from the engagement recess.

In addition, when removing the terminal block from the case, the locking lever provided at one end of the case is rotated in the opposite direction to that at the time of attachment to engage the locking claw at the tip and the one end surface of the terminal block. The engagement with the recess is released. Similarly, the locking lever provided on the other side end surface of the case is rotated in the opposite direction to that at the time of attachment, and the engagement between the locking claw and the engaging recess on the other side end surface of the terminal block is released. In this state, the base end portion of the locking lever is separated from the stopper of the case, and the restriction is released.

  According to the present invention, either one of the engagement concave portion or the engagement convex portion is formed at one side end portion of the case, and the engagement concave portion or the engagement convex portion of the case can be engaged with one side end portion of the terminal block. Either an engagement protrusion or an engagement recess is formed, an engagement hole is formed at the other end of the case, and the engagement hole can be engaged with or released from the other end of the terminal block. By providing a simple engagement lever, there is no need to use a tool when attaching and detaching the case and the terminal block, and it is possible to carry out with a single operation (one action), improving workability. Figured. In addition, since the space required for fixing the terminal block is only the locking lever portion on the case side, the dead space is reduced, and a display space or the like can be increased.

Hereinafter, a case and terminal block attachment / detachment structure according to an embodiment related to the present invention will be described with reference to the drawings. FIG. 1 shows a side view of a case of a modular controller, for example, and a mounting portion of a terminal block to which the case / terminal block attachment / detachment structure according to the present invention is applied.

Case 1 is configured to Suyo such a box body of a rectangular parallelepiped shape elongated thin edge portion on the left side (not shown) is possible and out of the open board (see FIG. 7), the right end portion It is set as the end surface 1a. Further, as shown in FIG. 4, an attachment hole 1b for attaching the terminal block 2 is formed in the end face 1a along the longitudinal direction (vertical direction in the figure). A substrate (not shown) is accommodated in the case 1. The board is, for example, a double-sided board, and electric circuits are provided on both sides, and a plurality of terminals (edge connectors) are arranged in parallel on both sides of one side (the end plate 1a side of the case 1). The electrical circuit is connected to a corresponding terminal. In this substrate, a plurality of terminals arranged in parallel on both sides of the one side are accommodated facing the mounting hole 1b. In the present embodiment, the upper and lower ends in the drawing of the mounting hole 1b are referred to as both ends of the case.

  As shown in FIGS. 1 and 2, the terminal block 2 has a vertically long rectangular parallelepiped shape and is formed to be narrower and shorter than the end surface 1a of the case 1 and is attached to the mounting hole 1b of the case 1 (hereinafter referred to as the terminal block 2). As shown in FIG. 4, a slot portion (edge connector socket) 2A is formed along the longitudinal direction on the “inner side”, and screw terminal portions 2B and 2C are integrally formed on the outer side. The slot portion 2A is formed to be slightly narrower and shorter than the screw terminal portions 2B and 2C.

  The slot portion 2A is formed with slits into which the terminals are inserted on an end face facing one side of the substrate, and each terminal formed on both sides of the substrate on both sides inside the slit, A terminal to be connected is formed.

  In the screw terminal portions 2B and 2C, a plurality of screw terminals 2b and 2c are formed at predetermined intervals (pitch) along the longitudinal direction, respectively. The screw terminal 2b and the screw terminal 2c are arranged with a half pitch shift along the longitudinal direction (up and down direction in the figure), and both end parts (upper and lower end parts in the figure) of the screw terminal part 2B are both end parts of the screw terminal 2C. A step is formed on the upper side (one side) by a half pitch from the upper and lower ends. Accordingly, the upper and lower end surfaces of the slot portion 2A are stepped accordingly. The lower surfaces (other side surfaces) 2D of the screw terminal portions 2B and 2C are flush with each other as shown in FIG. As shown in FIG. 4, the step between the lower surface 2d of the slot portion 2A and the lower surface 2D of the screw terminal portions 2B and 2C has the same height as the plate thickness of the lower plate of the case 1 (lower opening end of the mounting hole 1b). Has been.

  Each screw terminal 2b of the screw terminal portion 2B is connected to a corresponding terminal formed on one inner surface of the slot portion 2A, and each screw terminal 2c of the screw terminal portion 2C is formed on the other inner surface of the slot portion 2A. Connected to the corresponding connection terminal.

  In the mounting hole 1b of the end surface 1a of the case 1 described above, the slot portion 2A of the terminal block 2 can be inserted with a slight gap, and the lower end surface 2D of the terminal block 2 is formed on the case 1 as shown in FIG. The lower end surface 1d is flush with the lower end surface 1d, and one side of the screw terminal portion, for example, the side surface of the screw terminal portion 2B is formed to be flush with the one side surface of the case 1 as shown in FIG. In the present embodiment, the upper and lower ends of the screw terminal portions 2B and 2C in the drawing are referred to as both ends of the terminal block.

  Further, the upper and lower end faces of the mounting hole 1b are stepped in accordance with the step difference between the upper and lower end faces of the corresponding slot portion 2A. Then, in a state where the slot portion 2A is inserted into the mounting hole 1b, the surface (lower surface) on the slot portion 2A side of the peripheral portion of the screw terminal portion 2B and screw terminal portion 2C comes into contact with the peripheral portion of the mounting hole 1b. As a result, the attachment hole 1 b is closed by the terminal block 2.

  As shown in FIG. 4, the terminal block 2 is formed with an engaging projection 2f protruding upward from the top of the upper end surface (one side end surface) 2e of the slot 2A. This engagement convex part 2f may be provided in the full width of the upper surface of the slot part 2A, or may be provided on one side of the screw terminal part 2B or 2C side. Further, as shown in FIG. 1, the engaging lever 3 is provided at the connecting portion between the lower surface 2D of the screw terminal portions 2B and 2C and the lower surface 2d of the slot portion 2A.

  As shown in FIG. 3, the engaging lever 3 is formed so that a locking claw 3a protrudes inward toward the lower surface 2d of the slot 2A at the tip, and an engagement releasing portion 3b (convex) at the rear end. Part) is formed so as to protrude outward (downward) with respect to the lower end surface 2D of the screw terminal parts 2B and 2C. The upper surface 3c of the locking claw 3a is formed so as to be inclined in a tapered shape from the rear end surface to the front end portion. Further, the height of the rear end surface 3d as the locking portion is formed to be substantially the same as or slightly lower than the plate thickness of the lower opening end of the attachment hole 1b of the case 1. The engaging lever 3 is pivotally supported by a shaft 4 so that the vicinity of the center is rotatable. The shaft 4 is pivotally supported by bearing portions 2E and 2F formed by projecting downward at the outer lower ends of the screw terminal portions 2B and 2C. The engaging lever 5 has the same width as the slot 2A.

  The shaft 4 is provided with a spring (not shown), one end of which is engaged with the inner surface of the engagement lever 3 on the engagement release portion 3b side, and the other end is engaged with the lower surface 2D of the screw terminal portions 2B and 2C. It has been stopped. In the normal state, the engagement lever 3 has its front end abutting against the lower surface 2d of the slot portion 2A as shown by a solid line in FIG. 3 due to the spring force of the spring, and the engagement release portion 3b is a screw terminal. It is separated from the lower surface 2D of the parts 2B and 2C. Then, the engagement release portion 3b is rotated in the direction of the arrow (counterclockwise) against the spring force, and the engagement release portion 3b of the engagement lever 3 is in contact with the lower surface 2D as indicated by a dotted line. , The locking claw 3a at the tip is slightly separated from the lower surface 2d of the slot 2A from the lower surface of the mounting hole 1b of the case 1.

  As shown in FIG. 4, the case 1 is formed with an engagement recess 1f for engaging with the engagement protrusion 2f of the slot 2A of the terminal block 2 at the back of the upper surface 1e of the mounting hole 1b. Further, an engagement hole 1g is provided on the lower surface of the attachment hole 1b at a position corresponding to the locking claw 3a of the engagement lever 3.

  Then, one end of the terminal block 2 and the mounting hole 1b of the case 1 corresponding to each other, that is, an engaging concave portion 1f formed in the engaging hole 1b of the case 1 and an engaging convex portion formed in the slot portion 2A of the terminal block 2 2f forms a first engaging portion. The first engaging portion engages when the shape portion fixedly formed in each of the terminal block 2 and the mounting hole 1b, that is, the engaging convex portion 2f and the engaging concave portion 1f mechanically interfere with each other. . Further, a second engagement portion is formed by the engagement lever 3 provided at the other end of the terminal block 2 and the engagement hole 1 g formed at the other end of the case 1. The second engaging portion is a shape portion movably formed in one of the terminal block 2 and the mounting hole 1b (terminal block 2), that is, the engaging lever 3 is fixed to the other (case 1). The formed shape part, that is, the engagement hole 1g is engaged by mechanical interference.

  Next, a procedure for attaching / detaching the terminal block 2 to / from the case 1 will be described. When the terminal block 2 is attached to the case 1, the operator holds the upper and lower ends of the terminal block 2 with the fingertips of one hand (not shown), for example, the thumb and middle finger, and the mounting holes of the case 1 as shown in FIG. The upper portion of the slot portion 2A of the terminal block 2 is inserted into the upper portion of 1b obliquely from below in the drawing, and the engaging convex portion 2f of the slot portion 2A is engaged with the engaging concave portion 1f. Next, the terminal block 2 is rotated toward the case 1 as indicated by an arrow with the engaging portion between the engaging convex portion 2f and the engaging concave portion 1f as a fulcrum, and the slot portion 2A is pushed into the mounting hole 1b.

  The upper surface 3c of the engaging claw 3a of the engaging lever 3 is tapered as shown in FIG. 3, so that the upper surface 3c is indicated by a dotted line in FIG. 3 by the opening end surface below the mounting hole 1b. Is moved outward while sliding on the lower surface 1d of the case 1 and engaged with the engagement hole 1g. In this case, for example, the operator applies a thumb to the disengagement portion 3b of the engagement lever 3, holds the middle finger against the upper end portion, and presses the disengagement portion 3b of the engagement lever 3 with the thumb. As shown, it may be rotated to engage with the engagement hole 1g. In this way, the terminal block 2 is attached to the case 1 as indicated by the dotted line in FIG. And in the state which attached the terminal block 2 to the case 1, the terminal of the terminal block 2 is electrically connected to the terminal of the said board | substrate accommodated in the case 1. FIG.

  When removing the terminal block 2 from the case 1, the operator places the upper and lower ends of the terminal block 2 with the fingertip of one hand (not shown), for example, the thumb against the disengagement portion 3 b of the engagement lever 3 and the middle finger up The engagement release portion 3b is pushed against the end face, and the engagement lever 3 is rotated as indicated by an arrow in FIG. 1 to release the engagement between the locking claw 3a and the engagement hole 1g. Then, the lower end portion of the terminal block 2 is pulled out from the mounting hole 1b as shown by the solid line in FIG. 4 with the fingertip hooked on the disengagement portion 3b.

  Next, while pulling the terminal block 2 obliquely downward from the state indicated by the solid line in FIG. 4, the engaging convex portion 2f at the upper end is pulled out from the engaging concave portion 1f of the mounting hole 1b to release the engagement. Next, the slot portion 2A is pulled out from the mounting hole 1b. Thereby, the terminal block 2 can be removed from the case 1. When the terminal block 2 is removed from the case 1, the electrical connection between the terminals of the terminal block 2 and the terminals of the substrate housed in the case 1 is released.

  In the above embodiment, the case where the engaging protrusion 2f is formed on the slot 2A side of the terminal block 2 and the engaging recess 1f is formed on the mounting hole 1b side of the case 1 is described. Alternatively, an engaging recess may be formed on the slot 2 </ b> A side of the terminal block 2, and an engaging protrusion may be formed on the mounting hole 1 b side of the case 1.

FIG. 5 shows, as a first embodiment of the present invention, a modification of the engaging projection formed on the slot 2A of the terminal block 2 shown in FIG. A cut portion (slit) 2h is provided to the end side to form a cantilever shape (tongue piece shape) and bendable. Thereby, it becomes easy to engage the engagement convex portion 2f and the engagement concave portion 1f of the case 1 with each other.

FIG. 6 shows a modified example of the mounting hole 1b of the case 1 shown in FIG. 4 as a modified example of the first embodiment of the present invention , and is engaged from the opening end surface above the opening end of the mounting hole 1b. A notch (slit) 1h is provided up to the vicinity of the recess 1f so that the upper end 1b 'of the opening end can be bent. This makes it easier to the engagement between the engaging convex portion 2 f and the engaging recess 1f.

  7 to 9 show a case / terminal block attachment / detachment structure according to the second embodiment of the present invention. The same members as those shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 7, locking claws 5 and 6 are provided at both upper and lower ends of the opening of the mounting hole 1b of the case 1 for inserting the slot 2A of the terminal block 2 shown in FIG. The upper and lower end faces of the block 2 are locked and fixed. In the present embodiment, the upper and lower ends in the drawing of the mounting hole 1b are referred to as both ends of the case.

  The locking claw 6 at the lower end (the other end) is provided on the screw terminal portion 2B side of the terminal block 2 of the mounting hole of the case 1 as shown in FIG. The locking claw 6 has a base end portion 6a rotatably supported by a support portion 1E formed on the lower surface of the case 1, and is inside the tip end, that is, the tip of the lower end surface 2B ′ of the screw terminal portion 2B. A locking claw portion 6b is formed so as to protrude to the 2B ″ side. The locking claw portion 6b is formed on the lower end surface 2B ′ of the screw terminal portion 2B as shown in FIG. 7 and FIG. In addition, the front end 2B ″ is engaged with moderate friction from the outside.

  The locking claw 5 at the upper end portion (one side end portion) is provided on the screw terminal portion 2C side of the terminal block 2 of the mounting hole. Other configurations are the same as those of the locking claw 6. As shown in FIGS. 7 and 9, the locking claw portion 5b of the locking claw 5 is engaged with the tip 2C ″ with appropriate friction from the outside of the upper end surface 2C ′ of the screw terminal portion 2C. Accordingly, these locking claws 5 and 6 do not require a spring member or the like.

  When the terminal block 2 is attached to the case 1, as shown in FIG. 8, the locking claws 5 and 6 are separated from the upper end surface 2C and the lower end surface 2B '(opened outward). Next, the slot portion of the terminal block 2 is inserted into the mounting hole of the case 1, and the end surfaces of the screw terminal portion 2B and the screw terminal portion 2C on the slot portion side are brought into contact with the peripheral portion of the mounting hole. Next, the latching claw 6 is rotated so as to be close to the lower end surface 2B ′ side (inward), and the latching claw portion 6b is turned to the lower end surface 2B of the screw terminal portion 2B as shown in FIGS. Similarly, the engaging claw 5 is turned inward to engage the engaging claw portion 5b with the distal end 2C ″ of the upper end surface 2C ′ of the screw terminal portion 2C. Thereby, the terminal block 2 can be easily fixed to the case 1.

  When removing the terminal block 2 from the case 1, the locking claw portion 6b is moved to the tip of the lower end surface 2B 'of the screw terminal portion 2B so that the lower locking claw 6 is separated from the lower end surface 2B' (opened outward). 2B ″, the upper locking claw 5 is opened outward, and the locking claw portion 5b is removed from the tip 2C ″ of the upper end surface 2C ′ of the screw terminal portion 2C. Thereby, the terminal block 2 can be easily removed from the case 1.

10 to 13 show a case / terminal block attachment / detachment structure according to an embodiment related to the present invention. The same members as those shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted. Locking levers 7 and 8 are provided at both upper and lower ends of the opening of the mounting hole 1b of the case 1 for inserting the slot 2A of the terminal block 2 shown in FIG. 4, as shown in FIGS. The upper and lower end surfaces of the terminal block 2 are locked and fixed. In the present embodiment, the upper and lower ends in the drawing of the mounting hole 1b are referred to as both ends of the case.

  The locking lever 8 at the lower end (the other end) is provided on the screw terminal portion 2B side of the terminal block 2 of the mounting hole as shown in FIG. The locking lever 8 is substantially L-shaped when viewed from below, the lever 8a on one side is positioned on the lower surface 1d side of the case 1, and the lever 8b on the other side is a screw terminal portion from the opening end of the mounting hole. It is located on the lower end surface 2B ′ side of 2B, and the bearing portion 8c is formed closer to the lever 8b side of the bent portion. The locking lever 8 is supported so as to be rotatable in parallel with the lower surface 1 d of the case 1. An engaging claw 8d is formed at the tip of the lever 8b of the locking lever 8 on the side facing the lower end surface 2B 'of the screw terminal portion 2B.

  On the other hand, an engagement recess 2i that can be engaged with the engagement claw 8d is formed at the corner of the lower end surface 2B 'of the screw terminal 2B (stepped portion with the corner of the screw terminal 2C). Further, a stopper 1i having a substantially right-angled shape that can be engaged with the lever 8a of the locking lever 8 is integrally formed at a corner of the lower surface 1d of the case 1 on the screw terminal portion 2B side.

  The locking lever 7 at the upper end portion (one side end portion) has a rod shape as shown in FIG. 13, and is provided on the screw terminal portion 2C side of the terminal block 2 of the mounting hole. And the base end part 7a is supported by the opening end part of the said attachment hole so that rotation along the upper end surface 2C 'of the screw terminal part 2C is possible, and as shown in FIG. It is formed facing the upper end surface 2C ′ of the screw terminal portion 2C. On the other hand, an engagement recess 2j that can be engaged with the engagement claw 7b is formed in the approximate center of the upper end surface 2C 'of the screw terminal portion 2C.

  When attaching the terminal block 2 to the case 1, the locking levers 7 and 8 shown in FIG. 11 are rotated along the upper and lower opening end faces of the mounting hole. Next, the slot portion of the terminal block 2 is inserted into the mounting hole of the case 1, and the end surfaces of the screw terminal portion 2B and the screw terminal portion 2C on the slot portion side are brought into contact with the peripheral portion of the mounting hole.

  Next, the locking lever 8 is rotated to engage the engagement claw 8d of the lever 8b with the engagement recess 2i of the lower end surface 2B ′ of the screw terminal portion 2B as shown in FIGS. At this time, the lever 8b is slightly bent by the elastic force, and the engaging claw 8d rotates while sliding on the lower end surface 2B '. In this engaged state, the lever 8a of the locking lever 8 is locked to the stopper 1i of the case 1 as shown in FIG. This prevents the locking claw 8d from coming off from the engaging recess 2i.

  Next, the locking lever 7 is rotated, and the locking claw 7b is engaged with the engagement recess 2j formed at the approximate center of the upper end surface 2C 'of the screw terminal portion 2C. At this time, the lever 7 is slightly bent by the elastic force, and the locking claw 7b rotates while sliding on the upper end surface 2C '. Thereby, the terminal block 2 can be easily fixed to the case 1 as shown in FIG.

  When removing the terminal block 2 from the case 1, the engagement levers 7 and 8 are rotated in the opposite direction to the above to release the engagement with the terminal block 2. Thereby, the terminal block 2 can be easily removed from the case 1.

  As described above, according to the present invention, it is not necessary to use a tool when attaching and detaching the case and the terminal block, and it is possible to perform the operation by one operation (one action), thereby improving workability. Is planned. In addition, since the space required for fixing the terminal block is only the locking lever portion on the case side, the dead space is reduced, and a display space or the like can be increased.

  Also, a locking claw that engages with the engagement hole of the case is formed at one end of the engagement lever, and a spring force for engaging the locking claw with the engagement hole at the substantially central portion is provided. An engagement release portion that releases the engagement between the locking claw and the engagement hole against the spring force is formed at the other side end portion. Thereby, in a state where the terminal block is attached to the case, the engaging claw of the engaging lever is engaged with the engaging hole of the case by the spring force. When releasing the engagement between the engagement claw and the engagement hole, the engagement claw is released from the engagement hole and engaged by pushing the engagement release portion of the engagement lever against the spring force. Is released. Thereby, the engagement between the case and the terminal block is easily released.

  In addition, a locking claw that is detachably locked to the tip of the end face of each end of the terminal block is provided on each end of the case, and the locking claw is connected to the both ends of the terminal block. The end portion of the case is pivotally supported by the end portion of the case so as to be in contact with or separated from the end surface of the terminal block, and the tip end portion can be locked to the tip end of the end surface of the terminal block. When attaching the terminal block to the case, the locking claws at both ends of the case are rotated so as to be close to the end surfaces of the both ends of the terminal block, and the leading end is locked to the leading end of the end surface of the terminal block. Thereby, a terminal block can be attached to a case.

  Further, when the terminal block is removed from the case, the engaging claws at both ends of the case are rotated away from the both end surfaces of the terminal block so as to be separated from the tip of the end surface of the terminal block to release the engagement. Thereby, a terminal block can be removed from a case.

  In addition, locking levers that are detachably locked to both end surfaces of the terminal block are provided at both end portions of the case, and engaging portions that engage with the locking levers are formed on both end surfaces of the terminal block. When attaching the terminal block to the case, the terminal block is attached to the case by engaging the locking levers at both ends of the case with the engaging portions provided at the both end faces of the terminal block. When removing the terminal block from the case, the engagement between the locking levers at both ends of the case and the engaging portions at both ends of the terminal block is released. Thereby, a terminal block can be removed from a case.

  In addition, a locking claw that engages with an engagement recess formed on one side end surface of the terminal block is formed at a distal end portion of a locking lever provided at one side end portion of the case, and a base end portion is a locking claw. Engaging recess formed on the other end surface of the terminal block at the tip of the locking lever provided on the other end portion of the case. A latching claw that engages with the terminal block is supported, the latching claw supports the substantially central portion so as to be rotatable along the end face of the terminal block, and the proximal end is engaged by a stopper formed on the case. Hold in a state engaged with the recess.

  And when attaching a terminal block to a case, the latching lever provided in the one side edge part of the case is rotated, and it engages with the engagement recessed part formed in the one side edge surface of the terminal block. Further, the locking lever provided at the other end of the case is rotated to engage with the engaging recess formed on the other end surface of the terminal block. In this state, the base end portion of the locking lever is restricted to the locking position by the stopper of the case, and the locking claw is prevented from coming off from the engaging recess.

  When removing the terminal block from the case, the locking lever provided at one end of the case is rotated in the opposite direction to that at the time of attachment, and the locking claw at the tip and the engaging recess at the one end of the terminal block Release the engagement. Similarly, the locking lever provided at the other side end of the case is rotated in the opposite direction to that at the time of attachment, and the engagement between the locking claw and the engaging recess on the other side end surface of the terminal block is released.

  In addition, a case containing a circuit board provided with an electric circuit, a terminal block having a plurality of terminals mounted and detachable, and a plurality of terminals of the terminal block and the circuit board in the case when the terminal block is mounted on the case. A mounting hole provided in the case for enabling electrical connection with the circuit, a terminal block and a mounting hole having a first engaging portion at one end corresponding to each other and a second engaging portion at the other end, respectively. The first engaging portion is engaged by mechanically interfering with the shape portions fixedly formed in each of the terminal block and the mounting hole, and the second engaging portion. Are engaged with each other by mechanically interfering with a shape portion movably formed in one of the terminal block and the mounting hole.

  When the terminal block is attached to the case, the shape portions fixedly formed in the terminal block and the attachment hole of the first engaging portion are mechanically interfered with each other so that one end of the terminal block is attached to one end of the case. Engage. Next, the shape portion movably formed in one of the terminal block and the mounting hole of the second engagement portion is engaged with the shape portion fixedly formed on the other by causing mechanical interference. Thereby, the terminal block can be mounted on the case, and the terminals of the terminal block can be electrically connected to the terminals of the substrate housed in the case.

  When removing the terminal block from the case, after disengaging the second engaging portion by moving the movably formed shape portion of the second engaging portion, The engagement can be released. Thereby, a terminal block can be removed from a case and the electrical connection of the terminal of the board | substrate accommodated in the case and the terminal of a terminal block can be cancelled | released.

It is a side view of the attachment part of the case and terminal block to which the embodiment related to the present invention of the case and terminal block attachment / detachment structure according to the present invention is applied. FIG. 2 is a right side view of the case and the terminal block shown in FIG. 1. It is an enlarged view of the latching lever of the terminal block shown in FIG. It is explanatory drawing in the case of attaching a terminal block to the case shown in FIG. FIG. 5 is a modified example of the engaging portion convex portion of the terminal block shown in FIG. 4, and is an explanatory view showing the first embodiment of the present invention . FIG. 6 is a modified example of the engaging recess of the case shown in FIG. 4, and is an explanatory view showing a modified example of the first embodiment of the present invention . It is a side view of the attachment part of the case and terminal block to which the second embodiment of the case / terminal block attachment / detachment structure according to the present invention is applied. It is the perspective view which looked at the attaching part of the case and terminal block shown in FIG. 7 from diagonally downward. It is explanatory drawing of the state which attached the terminal block to the case by the attaching part shown in FIG. It is a side view of the attachment part of the case and terminal block to which the embodiment related to the attachment / detachment structure of the case and terminal block according to the present invention is applied. It is the perspective view which looked at the attachment part of the case and terminal block shown in FIG. 10 from diagonally downward. It is explanatory drawing of the state which attached the terminal block to the case by the attaching part shown in FIG. It is the figure which looked at the attaching part of the case and terminal block shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 1a End surface 1b Mounting hole 1b 'Upper part of mounting hole 1d Lower surface 1e Upper surface of mounting hole 1f Engagement recessed part 1g Engagement hole 1h Cut part (slit)
1i stopper 1E support portion 2 terminal block 2A slot portion 2B screw terminal portion 2B 'lower end surface 2B "tip 2C screw terminal portion 2C' upper end surface 2C" tip 2b, 2c screw terminal 2d lower surface of slot portion 2D lower surface 2E, 2F bearing portion 2e Upper end surface of slot part 2f Engaging convex part 2h Cut part (slit)
2i Engaging recess 2j Engaging recess 3 Engaging lever 3a Locking claw 3b Disengagement part 3c Upper surface of the locking claw 3d Rear end surface of the locking claw 4 Axis 5 Locking claw 5b Locking claw 6 Locking claw 6a Base end portion 6b Locking claw portion 7 Locking lever 7a Base end portion 7b Locking claw 8 Locking lever 8a Lever 8b Lever 8c Bearing portion 8d Engaging claw

Claims (3)

In a case and terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, wherein both ends of the terminal block are detachably attached to both ends of the case ,
Forming a Kakarigo凹portion at one end of the case,
The Kakarigo凹portion engageable with the engaging projection of the casing is formed at one end of the terminal block,
An engagement hole is formed at the other end of the case,
A detachable structure of the engaging hole and the engaging or to case the terminal block provided with a disengagable engagement lever the other end of the terminal block,
The engaging lever has a locking claw that engages with the engaging hole of the case at one end, and a substantially central portion has a spring force that engages the engaging claw with the engaging hole of the case. An engagement release portion for releasing the engagement between the locking claw and the engagement hole against the spring force is formed at the other side end portion. A detachable structure of a case and a terminal block, wherein the convex portion is provided with a cut portion from the distal end side to the proximal end side, is formed in a cantilever shape, and can be bent . In a case and terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, wherein both ends of the terminal block are detachably attached to both ends of the case ,
An engagement recess is formed at one end of the case,
Forming an engaging convex portion that can be engaged with an engaging concave portion of the case at one end of the terminal block;
An engagement hole is formed at the other end of the case,
A terminal block detachable structure provided with an engagement lever that can be engaged with or released from the engagement hole at the other end of the terminal block,
The engaging lever has a locking claw that engages with the engaging hole of the case at one end, and a substantially central portion has a spring force that engages the engaging claw with the engaging hole of the case. It has been rotatably supported, and the engagement releasing portion to release the engagement between the locking pawl and the engaging hole against the spring force is formed at the other end, in the case features and to Luque over scan that front cut to the vicinity portions disposed was bendable from said open mouth to short of the vicinity of the engaging recess of the said engagement recess from the opening to engage the terminal block And terminal block attachment / detachment structure. In a case and a terminal block attachment / detachment structure comprising a case containing a substrate and a terminal block attached to the case and connected to the substrate, both ends of the terminal block are detachably attached to both ends of the case,
A locking lever that is detachably locked to both end surfaces of the terminal block is provided at both ends of the case, respectively.
A detachable structure of a terminal block and a case in which engaging portions that engage with the locking lever are formed on both end faces of the terminal block ,
The locking lever provided on one end surface of the case is
A locking claw that engages with an engaging recess formed on one end surface of the terminal block is formed at the distal end,
The base end is supported so that the locking claw can be rotated along one side end surface of the terminal block,
The locking lever provided on the other end surface of the case is
A locking claw that engages with an engaging recess formed on the other end surface of the terminal block is formed at the distal end,
The substantially central portion is supported so that the locking claw can be rotated along the end surface of the terminal block,
A detachable structure of a case and a terminal block, wherein a base end portion can be locked to a stopper formed on the case, and the locking claw is held in a state of being engaged with the engagement recess .

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