JP2006260829A - Terminal cover device of terminal board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to efficiently carry out a wiring work of a terminal board, of which connection of a counterpart terminal to a lower-step terminal board part can be carried out without removing a lower-step terminal cover, and a counterpart terminal in point has only to be removed. <P>SOLUTION: The lower-step terminal cover 30, provided with a pair of leg parts 33 extended from its either side in its movement direction, is retained by the terminal board A in free sliding movement by being inserted into a terminal insertion hole 14, and is free to move in the same plane with a terminal releasing face 3A. As the lower-step terminal cover 30 is moved, the terminal releasing face 3A of the lower-step terminal board part 3 is put out in a space between both leg parts 33 to connect a connecting terminal 8-1 with the counterpart terminal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a terminal cover device for a terminal block for wiring input and output lines of electronic equipment such as power supply equipment.

  In general, a power supply device is equipped with a two-stage terminal block for distributing a load to each system or increasing the number of terminals. 6 and 7, the terminal block 40 includes a terminal block main body 41. The terminal block main body 41 has an upper terminal block 42 on the upper stage and a lower terminal block 43 on the lower level. Each is formed. The terminal block 40 is provided with a terminal cover 60 for opening and closing the upper terminal block 42.

  As shown in FIG. 7, the upper terminal block portion 42 is provided with a plurality of partition wall portions 46 between the upper side portions of the left and right side wall portions 44 and 45, and the upper portions of the terminal block body 41 are connected to the plurality of terminals by these partition wall portions 46. The mounting portions 47 are partitioned, and the connection terminals 48 are provided on the base portions 47 a of these terminal mounting portions 47. And the protrusion part 49 for hinges which has 49 A of support holes protrudes in the rear part of the top surface of the left-right side wall parts 44 and 45. As shown in FIG.

  The lower terminal block 43 is provided with a plurality of partition walls 50 between lower portions of the left and right side wall sections 44 and 45, and the lower portions of the terminal block body 41 are connected to the plurality of terminal mounting portions 51 by these partition walls 50. The connection terminal 48-1 is provided on the base portion 51a of the terminal mounting portion 51.

  The terminal cover 60 has a rectangular cover body 60A that is substantially the same size as the upper terminal block 42 and the upper surface, and hinge pins 61 project from the rear ends of both edges of the cover body 60A. is there.

  The terminal cover 60 is attached to the terminal base body 41 by inserting the hinge pin 61 into the support hole 49A of the hinge projection 49, and by rotating the terminal cover 60 with the hinge pin 61 as a fulcrum, The terminal release surface of the upper terminal block 42 is released by the terminal cover 60.

  In addition, the conventional terminal block cover structure reduces dead space when the terminal block is mounted upward on the board, making effective use of board space, improving the efficiency of mold investment, and wiring work. A terminal block structure of an electronic device that facilitates the above is disclosed.

This terminal block cover structure reduces the left and right side wall portions of the terminal block main body and the rear barrier portion of the partition wall portion between these side wall portions, and forms engagement recesses in front and rear of the upper edge portions of these side wall portions. And a support shaft portion detachably engaged with the engaging recess at the left and right side edge portions of the cover body, and the right and left side wall portions of the terminal block body and the rear barrier of the partition wall portion on the cover body. And a terminal cover in which a barrier part serving as a part is formed (see Patent Document 1).
Japanese Utility Model Publication No. 6-2565

  In the conventional terminal cover structure shown in FIGS. 6 and 7, the upper terminal block 42 is covered with the terminal cover 60 and can be finger-protected, but the lower terminal block 41 is covered with the terminal cover. There is no finger protection.

  Therefore, if a terminal cover is attached to the lower terminal block 43 side so as to cover the lower terminal block 43, finger protection can be achieved together with the upper and lower terminal blocks 42 and 43. When connecting a mating terminal (load side terminal) (not shown) to the connection terminals 48 and 48-1 of the lower terminal block portions 42 and 43, the connection terminals 48-1 of the lower terminal block portion 43 are initially connected to the connection terminals 48-1 of the lower terminal block portion 43. After the connection, the connection to the connection terminal 48 of the upper terminal block 42 can be performed next. In such a state, the counterpart terminal and the wiring connected to the connection terminal 48 of the upper terminal block 42 are overhanging and covering the lower terminal block 43.

  For example, when the connection terminal is changed after wiring, it is desired to remove only the necessary counterpart terminal, but the terminal cover of the lower terminal block 43 cannot be opened. The counterpart terminal connected to the connection terminal 48-1 cannot be removed, and the connection terminal 48 of the upper terminal block 42 needs to be removed.

  In order to improve this, the lower terminal cover may be detachable from the lower terminal base 43, but the upper terminal terminal 48 or the lower terminal terminal 48-1 is connected to the other terminal. It is very difficult to attach the lower terminal cover to the lower terminal block 43 while the terminals are connected, and there is a problem that wiring workability is poor.

  The present invention solves the above-mentioned problems, and the object of the present invention is not only to be able to connect the counterpart terminal to the lower terminal block without removing the lower terminal cover, but also to lower terminal. A terminal block terminal cover device that enables efficient wiring work and enables finger protection without removing the lower terminal cover at the base, so that only necessary mating terminals can be removed. Is to provide.

  In order to achieve the above object, a terminal block terminal cover device according to the present invention is a terminal block terminal cover device having a plurality of stages of terminal blocks, and is an upper stage side of the plurality of stages of terminal blocks. The upper terminal cover that covers the terminal block and the lower terminal cover that covers the lower terminal block are configured separately, and at least the lower terminal cover can be moved in the same plane as the terminal release surface of the lower terminal block. In this configuration, the terminal release surface is released by moving the lower terminal cover, so that the connection terminal of the lower terminal block is exposed.

  With this configuration, in the upper terminal block, the upper terminal cover is opened, the terminal release surface of the upper terminal block is released, and the connection terminal of the upper terminal block is exposed, and this connection terminal Connect the other terminal. Also, by moving the lower terminal cover, the terminal release surface of the lower terminal block can be released to expose the connection terminal of the lower terminal block, and the mating terminal can be connected to this connection terminal. it can.

  Therefore, when connecting the mating terminal to the connection terminal of the upper and lower terminal blocks, first connect to the upper terminal block, and then remove the lower terminal cover to connect to the lower terminal block. Can be done without.

  After wiring in this way, for example, when changing the connection terminal, if you want to remove only the mating terminal where the connection terminal of the lower terminal block is necessary, move the lower terminal cover. By releasing the terminal release surface of the lower terminal block, only the required counterpart terminal can be removed, and the wiring workability can be efficiently performed.

  Further, the terminal cover device of the terminal block according to the present invention is the terminal cover device of the terminal block according to the present invention described above, wherein the lower terminal cover is provided with an insertion portion for a tool such as a screwdriver for mounting the mating terminal on the connection terminal. It is provided.

  With this configuration, even when the lower terminal block is covered with the lower terminal cover, the tool insertion portion can be attached to and detached from the mating terminal.

  Here, the tool insertion portion corresponds to, for example, a circular hole formed in the lower terminal cover.

  Moreover, the terminal cover device of the terminal block according to the present invention is the terminal cover device of the terminal block according to the present invention described above, wherein the lower terminal cover extends in the moving direction of the lower terminal cover from both sides thereof. It has a pair of legs, these legs are slidably held on the terminal block, and the lower terminal cover is movable in the same plane as the terminal release surface.

  With such a configuration, the lower terminal cover can be moved in the same plane as the terminal release surface in a state where the pair of legs are slidably held on the terminal block, and in the space sandwiched between both legs, The other terminal can be connected to the connection terminal of the lower terminal block by exposing the terminal release surface of the lower terminal block.

  Moreover, the terminal cover device of the terminal block according to the present invention is the above-described terminal cover device of the terminal block according to the present invention, wherein the holding of the leg portion by the terminal block is provided with a pair of leg insertion holes in the terminal block, The leg portion is inserted into the leg portion insertion hole.

  With this configuration, the lower terminal cover can be moved in the same plane as the terminal release surface in a state where the pair of legs are slidably inserted and held in the leg insertion holes of the terminal block. The terminal release surface of the lower terminal block can be exposed in the sandwiched space, and the mating terminal can be connected to the connection terminal of the lower terminal block.

  In addition, the terminal cover device for a terminal block according to the present invention is the terminal cover device for a terminal block according to the present invention described above, wherein a lock portion is provided at the tip of the leg portion, and the lower terminal cover is provided in the leg insertion hole. In a state where a first lock engagement portion and a second lock engagement portion are provided at a predetermined interval in the moving direction, and the lock portion is detachably engaged with the first lock engagement portion, the lower stage side The terminal cover is in a position that covers the terminal release surface of the lower terminal block, and the lower terminal cover releases the terminal release surface when the lock portion is detachably engaged with the second lock engagement portion. It is characterized by that.

  With this configuration, when the lock portion is detachably engaged with the first lock engagement portion, the lower terminal cover is in a position that covers the terminal release surface of the lower terminal base, and from this state, the lower terminal By moving the cover in the same plane as the terminal release surface, the pair of legs slides in the leg insertion hole, and the lock part is detachably engaged with the second lock engagement part. The lower terminal cover reaches the position where the terminal release surface is released, and the terminal release surface of the lower terminal block is exposed in the space between the legs. Side terminals can be connected.

  A terminal cover device for a terminal block according to the present invention is the terminal cover device for a terminal block according to the present invention described above, wherein notches are formed on both sides of the lower terminal cover so as to be parallel to the legs. The portion is made elastically deformable.

  With this configuration, the lower stage terminal cover can be removed from the terminal block because the lock part is released from the second lock engaging part if both legs are picked and elastically deformed inward. Can do.

  Further, the terminal cover device for a terminal block according to the present invention is characterized in that the lower terminal cover can be seen through in the terminal cover device for a terminal block according to the present invention described above.

  With this configuration, even when the lower terminal cover covers the lower terminal block, or even when the lower terminal cover is moved and the terminal release surface of the lower terminal block is released, the mating terminal is While seeing, the mating terminal can be attached to and detached from the connection terminal.

  According to the terminal cover device of the terminal block according to the present invention, the connection of the counterpart terminal to the lower terminal block can be performed without removing the lower terminal cover, and, for example, the connection terminal is changed after wiring. In such a case, if you want to remove only the required mating terminal of the connection terminal of the lower terminal block, move the lower terminal cover to release the terminal release surface of the lower terminal block. However, only the counterpart terminal can be removed, and the wiring work can be performed efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a terminal cover device for a terminal block according to the present invention, with the lower terminal cover covering the terminal release surface of the lower terminal block, and FIG. 2 is a lower terminal in the terminal cover device of the terminal block. FIG. 3 is a perspective view of a lower terminal cover in a terminal cover device of the terminal block, and FIG. 4 is a terminal cover device of the terminal block. FIG. 5 is a cross-sectional view of the lower terminal block covering the terminal release surface of the lower terminal block, FIG. 5 is a terminal cover device of the same terminal block, in which the lower terminal cover is moved and the terminals of the lower terminal block are moved. It is a cross-sectional view of a state in which the release surface is released.

  As shown in FIGS. 1 and 2, the terminal cover device according to the present invention has an upper terminal cover 20 and a lower terminal cover 30, and is attached to a terminal block A having a two-stage structure. is there. The terminal block A includes a terminal block main body 1, and an upper terminal block 2 is formed on the upper stage and a lower terminal block 3 is formed on the lower level.

  The upper terminal block 2 is provided with a plurality of partition walls 6 between the upper side portions of the left and right side walls 4 and 5, and the partition walls 6 partition the upper part of the terminal block body 1 into a plurality of terminal mounting portions 7. The connection terminal 8 is provided on the base portion 7 a of the terminal mounting portion 7. And the upper surface of each terminal mounting part 7 becomes the terminal release surface 2A.

  And the locking groove part 9 is formed in the upper side part of the right-and-left side wall parts 4 and 5. FIG. Further, a hinge projection 10 having a support hole 10A protrudes from the rear part of the top surface of the left and right side walls 4, 5, and a locking groove 11 is formed at the front edge of the left and right partition walls 6. It is formed.

  The lower terminal block 3 is provided with a plurality of partition walls 12 between lower portions of the left and right side walls 4 and 5, and the lower portions of the terminal block body 1 are partitioned into a plurality of terminal mounting portions 13 by these partition walls 12. The connection terminal 8-1 is provided on the base portion 13a of the terminal mounting portion 13. And the upper surface of each terminal mounting part 13 becomes the terminal release surface 3A.

  As shown in FIGS. 4 and 5, leg insertion holes 14 extending from the front surface portion 2a to the rear surface portion 2b are formed on the left and right sides of the front surface portion 2a of the upper terminal block 2. The left and right side wall portions 4 and 5 are formed with first lock engaging portions 17 formed of notches opened at the rear end portions of the leg insertion holes 14. These leg portion insertion holes 14 intersect with lock groove portions 9 (see FIG. 1 and FIG. 2) located in the left and right side wall portions 4 and 5, and the lock groove portions 9 at the intersection portions are the leg portion insertion holes 14. The opening 16 and the lock groove 9 constitute a second lock engaging portion 18.

  As shown in FIG. 1, the upper terminal cover 20 is made of a transparent or translucent synthetic resin, and has a rectangular cover body 20 </ b> A having substantially the same size as the upper terminal block 2 and the upper surface. Four circular holes 21 are formed on the surface of the cover body 20A at predetermined intervals in the longitudinal direction, and the hinge pins 22 protrude from the rear ends of both edges of the cover body 20A. Furthermore, a pair of left and right engaging portions 23 project from the front edge portion of the cover main body 20A.

  The upper terminal cover 20 is attached to the terminal block body 1 by inserting the hinge pin 22 into the support hole 10A of the hinge projection 10, and the upper terminal cover 20 is pivoted about the hinge pin 22 as a fulcrum. Then, the locking portion 23 is detachably locked to the locking groove portion 11 so that the upper terminal cover 20 covers the terminal release surface 2A of the upper terminal block 2. In this case, the circular hole 21 of the upper terminal cover 20 is positioned on the top of the connection terminal 8 of each terminal mounting portion 7 of the upper terminal block 2.

  The lower terminal cover 30 is made of a transparent or semi-transparent synthetic resin, and has a rectangular cover body 30A having the same size as the upper surface of the lower terminal block 3 as shown in FIG. The cover body 30A has four circular holes (insertion parts for a tool such as a screwdriver) 31 at predetermined intervals in the longitudinal direction, and a rear edge 30d of the cover body 30A. A semicircular cutout 31 </ b> A is formed so as to face the circular hole 31.

  Legs 33 are provided on both edge portions 30b and 30c of the cover main body 30A so as to extend rearward (rear surface portion 2b side) in FIG. That is, the base portion 33A of the leg portion 33 connected to the cover main body 30A is formed by forming the notches 32 on both sides of the rear edge portions of both the edge portions 30b and 30c of the cover main body 30A. 33 main parts 33B are provided so as to extend rearward. And the lock | rock part 34 which protrudes toward the outward is provided in the front part (rear end part) of the main part 33B of the leg part 33. As shown in FIG. In this case, the above-described cut portion 32 imparts spring properties to the leg portion 33.

  The lower-side terminal cover 30 has its leg portion 33 inserted into the leg insertion hole 14. When the lower-side terminal cover 30 covers the terminal release surface 3 </ b> A of the lower-stage terminal base portion 3, the leg portion 33 is The lock portion 34 is removably engaged with the first lock engagement portion 17 and is inserted deepest into the leg insertion hole 14. In this case, the circular hole 31 of the lower terminal cover 30 is positioned on the top of the connection terminal 8-1 of each terminal mounting portion 13 of the lower terminal block 2.

  Next, the operation of the terminal block cover device according to the present invention will be described.

  When releasing the terminal release surface 3A from the state in which the lower terminal cover 30 covers the terminal release surface 3A of the lower terminal base 3, push both legs 33 inward in FIG. Then, when these leg portions 33 are elastically deformed inward to remove the lock portion 34 from the first lock engagement portion 17, the lower terminal cover 30 is pulled out a little to release the push of both leg portions 33, The lock portion 34 comes into elastic contact with the outer wall portion 14 a of the leg insertion hole 14.

  Then, by pulling out the lower terminal cover 30, the lock portion 34 slides on the outer wall portion 14 a of the leg insertion hole 14, and as shown in FIG. When the position is reached, the lock portion 34 is detachably engaged with the second lock engagement portion 18. This locked state is a state where the lower terminal cover 30 is opened, that is, a state where the terminal release surface 3A is released. In this case, the semicircular cutout 31 </ b> A of the lower terminal cover 30 is positioned above each terminal mounting portion 13 of the lower terminal base 3.

  In this state, the connection terminal 8-1 of each terminal mounting portion 13 of the lower terminal base 3 is exposed in a top view, and the connection terminal 8-1 is removed from the top or floated, A side terminal (not shown) can be attached.

  Further, the semicircular cutout 31A of the lower terminal cover 30 is a relief, and a space for facilitating attachment / detachment of the mating terminal to the connection terminal 8-1 when the lower terminal cover 30 is pulled out. Will be secured.

  Further, since the lower terminal cover 30 can be seen through, even when the lower terminal cover 30 covers the terminal release surface 3A of the lower terminal block 3, or the lower terminal cover 30 is pulled out and connected to the terminal. Even when the release surface 3A is released, it can be attached to and detached from the connection terminal 8-1 while looking at the counterpart terminal.

  When connecting and wiring the counterpart terminal to the connection terminal 8 of the upper terminal block 2, the upper terminal cover 20 is pushed upward to release the locking portion 23 from the locking groove 11, and the upper terminal cover 20 is removed. The hinge pin 22 is pivoted backward with the hinge pin 22 as a fulcrum to release the terminal release surface 2A of the upper terminal block 2.

  Since the lower terminal block 3 can be released by pulling out the lower terminal cover 30, the lower terminal is connected to the connection terminal 8 of the upper terminal block 2 by connecting and wiring the counterpart terminal without removing the lower terminal cover 30. It is possible to connect and wire the counterpart terminal to the connection terminal 8-1 of the base part 3. Conversely, after connecting and wiring the mating terminal to the connection terminal 8-1 of the lower terminal block 3, it is possible to connect and wire the mating terminal to the connection terminal 8 of the upper terminal block 2.

  After wiring in this way, for example, when changing the connection terminal, it is desired to remove only the required counterpart terminal of the connection terminal 8-1 of the lower terminal block 3. In this case, by pulling out the lower terminal cover 30 and releasing the lower terminal block 3, only the necessary counterpart terminal can be removed.

  In addition, the lower terminal cover 30 is provided with the terminal block A because the lock part 34 is disengaged from the second lock engaging part 18 when both the leg parts 33 are picked and elastically deformed inward. Can be removed from.

  As described above, according to the embodiment of the present invention, the connection of the counterpart terminal to the lower terminal block 3 can be performed without removing the lower terminal cover 30, and after wiring, for example, the connection terminal In the case where it is desired to remove only the necessary counterpart terminal of the connection terminal 8-1 of the lower terminal block 3, the lower terminal cover 3 is moved by moving the lower terminal cover 30. It is possible to release the terminal release surface 3A and remove only the required counterpart terminal.

  In addition, it is possible to be configured such that only the cover main body 30A can be rotated by being hinged so that the boundary between the leg 33 of the lower terminal cover 30 and the cover main body 30A can be bent. The step of the lower terminal block 3 may be increased with respect to the terminal block 2 so that the connection work of the mating terminal to the lower terminal 3 is less affected by the upper terminal 2. . In this case, an integrated terminal cover that covers the upper terminal block 2 and the lower terminal block 3 at a time can also be used.

  According to the terminal cover device of the terminal block according to the present invention, the connection of the counterpart terminal to the lower terminal block can be performed without removing the lower terminal cover, and, for example, the connection terminal is changed after wiring. In such a case, if you want to remove only the required mating terminal of the connection terminal of the lower terminal block, move the lower terminal cover to release the terminal release surface of the lower terminal block. However, only the mating terminal can be removed, and wiring work can be performed efficiently. The terminal block cover device for wiring the input and output lines of electronic equipment such as power supply equipment, etc. Useful as.

In the terminal cover terminal cover device according to the present invention, the lower terminal cover covers the terminal release surface of the lower terminal block part in a perspective view. In the terminal cover device of the same terminal block, the lower terminal cover is moved to release the terminal release surface of the lower terminal block part. It is a perspective view of the lower terminal cover in the terminal cover apparatus of the terminal block. In the terminal cover device of the same terminal block, it is a cross-sectional view of a state where the lower terminal cover covers the terminal release surface of the lower terminal block. In the terminal cover device of the same terminal block, it is a cross-sectional view of a state in which the lower terminal cover is moved to release the terminal release surface of the lower terminal block. In the terminal cover apparatus of the conventional terminal block, it is a perspective view of the state which covered the terminal release surface of the upper terminal block part with the terminal cover. In the terminal cover device of the same terminal block, it is a perspective view of a state in which the terminal cover is rotated to release the terminal release surface of the upper terminal block.

Explanation of symbols

A terminal block 1 terminal block body 2 upper terminal block 2A terminal release surface 3 lower terminal block 3A terminal release surface 8 connection terminal 8-1 connection terminal 14 leg insertion hole 17 first lock engaging portion 18 second Lock engaging part 20 Upper stage terminal cover 30 Lower stage terminal cover 31 Circular hole (tool insertion part)
32 Cut section 33 Leg section 34 Lock section

Claims (7)

A terminal cover device for a terminal block having a plurality of terminal block portions, an upper terminal cover covering an upper terminal block portion of the plurality of terminal block portions, and a lower terminal cover covering a lower terminal block portion And at least the lower terminal cover is configured to be movable in the same plane as the terminal release surface of the lower terminal block, and the terminal release surface is released by the movement of the lower terminal cover. Thus, the terminal cover device of the terminal block is characterized in that the connection terminal of the lower terminal block part is exposed. The terminal cover device for a terminal block according to claim 1, wherein an insertion portion for a tool such as a screwdriver for attaching a mating terminal to the connection terminal is provided on the lower terminal cover. The lower terminal cover has a pair of legs extending in the moving direction of the lower terminal cover from both sides thereof, and these legs are slidably held on the terminal block, The terminal cover device for a terminal block according to claim 1 or 2, wherein the lower terminal cover is movable in the same plane as the terminal release surface. 4. The holding of the legs by the terminal block is performed by providing a pair of leg insertion holes in the terminal block and inserting the legs into the leg insertion holes. A terminal cover device for the terminal block as described in 1. A lock portion is provided at a tip portion of the leg portion, and a first lock engagement portion and a second lock engagement portion are provided in the leg insertion hole with a predetermined interval in the moving direction of the lower stage side terminal cover. When the lock portion is detachably engaged with the first lock engagement portion, the lower terminal cover is in a position covering the terminal release surface, and the lock portion is the second lock engagement. 5. The terminal cover device for a terminal block according to claim 4, wherein the lower terminal cover is in a position for releasing the terminal release surface in a state in which the joint is detachably engaged with the joint portion. 6. The terminal cover device for a terminal block according to claim 5, wherein a cut portion parallel to the leg portion is formed on both side portions of the lower terminal cover so that the leg portion can be elastically deformed. The terminal cover device for a terminal block according to claim 1, wherein the lower terminal cover can be seen through.

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