JP2006331891A - Relay drive unit and relay unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a relay drive unit and a relay unit improved in workability. <P>SOLUTION: A child machine 1 as a relay drive unit is provided with a signal wire terminal connected to a signal wire, a retaining protrusion 11c locking a retained protrusion 21a of a relay 2, and a relay terminal 53 in conductive contact with a control terminal of the relay 2, and drives the relay 2 based on control signals inputted into the signal wire terminal. Further, the child machine 1 is provided with a mounting part 11 directly fixed to a switchboard. Since there is no more need of the work of mounting a mounting plate conventionally used for mounting on the switchboard, workability is improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a relay drive unit that drives a relay, and a relay unit that includes a relay drive unit and a relay.

  2. Description of the Related Art Conventionally, a relay drive unit that drives a relay that turns on and off power supply to a load based on a control signal transmitted from an operation terminal such as a wall switch via a signal line has been used (for example, patents). Reference 1). For example, as shown in FIG. 7, the relay drive unit is supplied with power from a master unit 5a connected to a power source (not shown) via a power source line C and from the master unit 5a via a signal line L. There is a child unit 5b.

  More specifically, the relay 6 includes, for example, at least one pair (two pairs in the figure) of output terminals 61 that are formed of, for example, screw terminals and are inserted into a power feeding path to a load, and a plurality of control terminals 63 (see FIG. 10). And a contact portion (not shown) that is driven by a drive signal input from the control terminal 63 to turn on / off the electrical connection between the output terminals 61.

  Each of the master unit 5a and the slave unit 5b includes, for example, a signal line terminal 51 formed of a screw terminal and connected to the signal line L, a relay terminal 53 connected to the relay 6 (see FIG. 10), and a microcomputer, for example. A drive unit (not shown) that drives the relay 6 by generating a drive signal based on the control signal input from the signal line terminal 51 and outputting the drive signal from the relay terminal 53; More specifically, the drive unit has a memory in which a data table indicating a correspondence relationship between addresses and loads included in the control signal is stored, and when the control signal is input to the signal line terminal 51, the control signal Is for a load corresponding to the relay 6 connected to itself, the relay 6 is driven to turn on / off the power supply to the load. Furthermore, the master unit 5a has a total of three electric wire terminals 55, two of which are connected to the electric wires C constituting the two power supply lines and one of the electric wires connected to the ground wire G. The signal line terminal 51, the electric wire terminal 55, and the output terminal 61 of the relay 6 are provided in the recesses 51a, 55a, 61, respectively, so that an operator does not carelessly touch.

  The master unit 5a, the slave unit 5b, and the relay 6 are each attached to the distribution board DB by being attached to a mounting plate 7 that is previously attached to the distribution board DB.

  8 and 9, the vertical direction is based on the figure, the lower left-upper right direction in the figure is referred to as the front-rear direction, and the upper left-lower right direction in the figure is specifically described as the left-right direction. Each of the mounting plates 7 has a unit mounting portion 71 that corresponds to one relay 6 and is provided side by side. Each unit mounting portion 71 has a plurality of (three in the figure) screw insertion holes 43 that are inserted vertically into screw holes (not shown) provided in the distribution board DB. A main body 42 having a screw insertion notch 44 provided at the front end portion and a reverse L-shaped cross section projecting upward from the central portion of the main body portion 42 and bent in the front and rear directions. The base 5b and the relay 6 are respectively mounted, and a locking portion 71a protruding upward from the rear end of the main body and bent forward. The master unit 5a and the slave unit 5b are mechanically coupled to the mounting plate 7 by locking the locking part 71a in a locking hole (not shown) provided on the rear surface. Further, the pedestal portion 45 provides a gap between the lower surface of the parent device 5a, the child device 5b, and the relay 6, and the main body portion 42 and the distribution board DB of the mounting plate 7, and ensures heat dissipation.

  Further, the wire rod is bent at the front end portion of the mounting plate 7 so that it has a downward U-shape when viewed from the front and is bent so that the central portion in the vertical direction protrudes backward, and has a square shape when viewed from the left and right directions. The resulting locking spring 46 is held. A locking hole 64 into which the locking spring 46 is engaged is provided at the lower end of the front surface of the relay 6. Further, the protruding portion 54 of the master unit 5a has the size of two relays, and two locking holes 54a into which the locking springs 46 are respectively engaged are provided on the front surface of the protruding portion 54.

  The relay terminal 53 is provided in a connection recess 52 provided on the front surface of the parent device 5a and the child device 5b, and a cylinder formed on the rear surface of the relay 6 in a slightly smaller size and shape than the connection recess 52. A connecting portion 62 is protruded rearward.

In order to attach the relay 6 to the master units 5a and 5b and the slave unit, as shown in FIG. 10, the relay 6 is installed with the master unit 5a and the slave unit 5b attached to the mounting plate 7 fixed to the distribution board DB. The rear end (right end portion in FIG. 10) is inclined slightly downward to introduce the connection portion 62 into the connection recess 52 of the parent device 5a or the child device 5b, while the front end portion of the relay 6 (left end portion in FIG. 10). ) To the bottom. Then, the locking spring 46 is engaged with the locking hole 64. Here, when the connection portion 62 is housed in the connection recess 52, the relay 6 is prevented from dropping upward, and when the locking spring 46 is engaged with the locking hole 64, the relay 6 is prevented from dropping forward. Therefore, the relay 6 is held by the parent device 5a or the child device 6b and the mounting plate 7. In this state, the control terminal 63 of the relay 6 is brought into contact with the relay terminal 53 of the parent device 5a or the child device 6b. Here, the relay terminal 53 has a shape that elastically holds the control terminal 63, and the holding force for the relay 6 is also generated by the relay terminal 53.
JP 7-39021 A

  However, in the above-described conventional example, when attaching the parent device 5a and the child device 5b to the distribution board DB, the work of fixing the attachment plate 7 to the distribution board DB and the parent device 5a and the child device 5b to the attachment plate 7 are performed. Installation work was necessary separately.

  The present invention has been made in view of the above reasons, and an object thereof is to provide a relay drive unit and a relay unit with improved workability.

  The invention according to claim 1 is a relay drive for driving a relay having at least a pair of output terminals, a control terminal, and a contact portion for turning on / off electrical connection between the output terminals based on a drive signal input from the control terminal. The unit is a signal line terminal to which a signal line is electrically connected, a mounting part attached to a distribution board, and a holding part that mechanically couples to a held part provided in the relay and holds the relay And the relay terminal that is in contact with the control terminal of the relay held by the holding unit, and the drive signal is generated based on the control signal input to the signal line terminal and output from the relay terminal to be held by the holding unit. And a drive unit that drives the relay that has been used.

  According to the present invention, by providing a mounting portion that can be attached to the distribution board, it is not necessary to attach a mounting plate that has been conventionally used for mounting to the distribution board. It becomes.

  The invention according to claim 2 comprises the relay drive unit and the relay according to claim 1, and the held portion protrudes from the outer surface of the relay and is long in the contact direction of the control terminal with respect to the relay terminal, Holding protrusions protruding from both sides of the holding protrusion in the short direction of the holding protrusion, and the holding portion stores the holding protrusion long in the contact direction of the control terminal with respect to the relay terminal. The holding groove and a holding protrusion that protrudes in a direction intersecting the depth direction of the holding groove from the inner surface of the holding groove and locks the held protrusion. The held portion and the holding portion are controlled by the relay terminal. It is characterized by having one each of an engaging part and an engaged part for prohibiting movement of the relay in a direction in which the terminals engage with each other in a contact-conductive state and the relay terminal is away from the control terminal.

  According to the present invention, by providing a mounting portion that can be attached to the distribution board, the work of attaching a mounting plate that has been conventionally used for mounting to the distribution board is not required, so that construction can be saved. It becomes.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
In the present embodiment, a mounting portion 11 having a flat shape and a plurality of screw insertion holes 11a through which screws are inserted are respectively penetrated in the thickness direction and fixed to the distribution board by screws. 11 includes a slave unit 1 as a relay drive unit that has a main body 12 that is provided with a relay terminal 53 and is provided with a relay terminal 53, and a relay 2 that is attached to the slave unit 1. The attachment portion 11 is integrally provided on the main body portion 12 as a synthetic resin molded product. In the following, the vertical direction is based on FIG. 1, and the lower left-upper right direction in FIG. 1 is referred to as the front-rear direction, and the upper left-lower right direction in FIG. In addition, since the basic composition and operation | movement of the subunit | mobile_unit 1 and the relay 2 are respectively common with the subunit | mobile_unit 5b and the relay 6 of a prior art example, the same code | symbol is attached | subjected to a common structure and illustration and description are abbreviate | omitted.

  More specifically, a long supported protrusion 21 is provided on the lower surface of the relay 2 in the front-rear direction, that is, in the direction in which the control terminal contacts the relay terminal 53. In addition, two held projections 21 a are provided on the left and right sides of the held projection 21, respectively. Further, at the rear end portion of the upper surface of the relay 2, a spring portion 22 that protrudes rearward of the relay 2 and has spring properties up and down is provided. At the rear end of the spring portion 22, a locking claw 22 a protrudes downward.

  The subunit | mobile_unit 1 is made into the width dimension of four relays 2 in the left-right direction, and four sets of relay terminals 53 are arranged side by side. On the upper surface of the attachment portion 11, a hook-shaped holding groove 11 b that is long in the front-rear direction and opened to the front side is provided on the front side of each relay terminal 53. Two screw insertion holes 11a are provided through the bottom surface of each holding groove 11b. Moreover, the attachment part 11 has the site | part which protruded back of the main-body part 12, and the screw penetration hole 11a is provided also in this site | part. In addition, two holding projections 11c are provided on the left and right inner surfaces of each holding groove 11b so as to be opposed to each other with a clearance from the bottom surface of the holding groove 11b. The distance between the tips of the holding protrusions 11 c is larger than the width dimension of the held protrusions 21 of the relay 2. Further, the interval between the holding projections 11c arranged in the front-rear direction is larger than the front-rear width dimension of the held projections 21a of the relay 2, and the held projections 21a are put into and out of the holding grooves 11b through the gaps between the holding projections 11c. Can be done. In addition, on the upper surface of the main body 12, engagement recesses 12 a are provided at positions corresponding to the relay terminals 53, respectively.

  In order to attach the relay 2 to the slave unit 1, the held projection 21 is introduced into the holding groove 11 b, and then the relay 2 is slid rearward with respect to the slave unit 1 to bring the control terminal into contact with the relay terminal 53. Here, the held projection 21a of the relay 2 is locked to the holding projection 11c of the child device 1, so that the relay 2 is prevented from dropping upward. Furthermore, the engagement claw 22a engages with the engagement recess 12a, and the relay 2 is prevented from dropping forward. That is, the engaging claw 22a is an engaging portion, and the engaging recess 12a is an engaged portion.

  According to the said structure, since the operation | work which attaches the attachment board 7 like the prior art example to the subunit | mobile_unit 1 by providing the attachment part 11 attached to distribution board DB is improved, workability | operativity improves.

  In addition, since a gap is provided between the holding protrusions 11c so that the held protrusion 21a can be introduced from this gap, the slide is made to be slid when the relay 2 is attached, compared to a case where no gap is provided between the holding protrusions 11c. The width is reduced and the installation work is easy.

(Embodiment 2)
Since the basic configuration of this embodiment is the same as that of the conventional example, common portions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 2, the parent device 3a of the present embodiment includes an attachment portion 4 attached to the distribution board DB and a main body portion 5 having the same configuration as the conventional parent device 5a.

  More specifically, the mounting portion 4 includes a screw insertion hole 43, a screw insertion notch 44, a pedestal portion 45 (only for supporting the relay 6), and a locking spring 46, which are the same as the unit mounting portion 71 of the mounting plate 7, respectively. A plurality of (8 in the figure) unit mounting portions 41 having

  The main body 5 includes a signal line terminal 51, a connection recess 52, a relay terminal 53, a protrusion 54, a wire terminal 55, and recesses 51a and 55a. One unit mounting portion 41 is provided on the front side of the connection recess 52 with respect to each connection recess 52. That is, the locking spring 46 and the connection recess 52 are the holding portions in the claims, respectively, and the lower portion of the locking hole 64 and the connection portion 62 in the relay 6 are the held portions in the claims. Here, in addition to the eight unit mounting portions 41, the mounting portion 4 has a portion protruding to the front side of the protruding portion 54, and an insertion notch 44 is also provided in this portion.

  In order to attach the master unit 3a to the distribution board DB, a plurality of locations among the screw insertion holes 43 and the screw insertion cutouts 44 are appropriately used, and the attachment portion 4 is screwed to the distribution board DB.

  According to the present invention, by providing the attachment portion 4 attached to the distribution board DB, the work of attaching the attachment plate 7 to the master unit 3a as in the conventional example becomes unnecessary, so that the workability is improved.

  In addition, as shown in FIG. 3, with the main-body part 5 which has the structure similar to the conventional subunit | mobile_unit 5b, and the attachment part 4 which has the unit attachment part 41 corresponding to the connection recessed part 52 which the main-body part 5 has one to one. You may comprise the subunit | mobile_unit 3b.

  Further, as shown in FIGS. 4 and 5, the connection recess 52, the relay terminal 53, and the attachment portion 4 may be provided on both front and rear sides of the main body 5. In the example of FIG. 4, the main body 5 is formed in a T shape by projecting the projecting portion 54 on both the front and rear sides with respect to other portions. If this configuration is adopted, the main body 5 will not easily fall back and forth.

(Embodiment 3)
Since the basic configuration of the present embodiment is the same as the example shown in FIG. 3 in the second embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6 (a), the slave unit 3b of the present embodiment is provided with four connection grooves 56 having a rectangular cross section that is long in the vertical direction and opened upward, instead of the connection recess 52, and is provided with a relay. A terminal (not shown) is provided on the bottom surface of the connection groove 56. In addition, three locking projections 56 a are provided so as to protrude from the left and right portions of the inner surface of the connection groove 56. Further, as the relay 6, instead of the connecting portion 62, a vertically long protrusion 65 is provided on the rear surface, and two locked protrusions 65a are provided on the left and right side surfaces of the protrusion 65 so as to be aligned vertically. Is used. The interval between the locking projections 56a arranged vertically in the slave unit 3b is larger than the vertical width of the holding projection 65a of the relay 6, and the holding projection 65a is connected to the connection groove 56 through the gap between the locking projections 56a. Can be taken in and out. The control terminal is provided on the rear surface of the protrusion 65. Further, the control terminal of the relay 6 protrudes elastically rearward, and the rear surface is inclined so as to reduce the protruding dimension as it approaches the lower end. Furthermore, the relay terminal of the subunit | mobile_unit 3b is made into the flat shape which contacts the control terminal of the relay 6 simply from back, without pinching the control terminal of the relay 6. FIG.

  In order to attach the relay 6 to the slave unit 3b of the present embodiment, first, the locked protrusion 65a is introduced into the connection groove 56 as shown in FIG. Next, the relay 6 is slid downward with respect to the child device 3b. Then, the latching protrusion 65a is latched by the latching protrusion 56a, and the latching spring 46 is latched by the latching hole 64 of the relay 6, thereby preventing the relay 6 from dropping forward. Here, the control terminal of the relay 6 is brought into contact with the relay terminal of the slave unit 3b. That is, the locked protrusion 65a is included in the held portion, and the locking protrusion 56a is included in the holding portion.

  In the above description, the slave unit 3b has been described as an example. However, the structure of the present embodiment may be applied to the master unit 3a.

It is a disassembled perspective view which shows Embodiment 1 of this invention. It is a perspective view which shows Embodiment 2 of this invention. It is a perspective view which shows another form same as the above. It is a perspective view which shows another form same as the above. It is a perspective view which shows another form same as the above. It is a perspective view which shows Embodiment 3 of this invention. It is a figure which shows the state which attached the conventional main | base station, the subunit | mobile_unit, and the relay to the distribution board, (a) is a top view, (b) is a front view. It is a perspective view which shows the conventional main | base station, a relay, and a mounting plate. It is a perspective view which shows the conventional subunit | mobile_unit, a relay, and a mounting plate. It is explanatory drawing which shows how to attach the relay to the conventional subunit | mobile_unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,3b Slave unit 2,6 Relay 3a Master unit 4,11 Attachment part 5,12 Main-body part 11b Holding groove 11c Holding protrusion 12a Engaging recessed part 21 Held protrusion 21a Held protrusion 22a Engaging claw 46 Locking spring 51 Signal line terminal 52 Connection recess 53 Relay terminal 61 Output terminal 62 Connection part 63 Control terminal 64 Locking hole

Claims (2)

A relay drive unit that drives a relay having at least a pair of output terminals, a control terminal, and a contact portion that turns on and off the electrical connection between the output terminals based on a drive signal input from the control terminal,
A signal line terminal to which the signal line is electrically connected, a mounting part to be attached to the distribution board, a holding part that is mechanically coupled to a held part provided in the relay and holds the relay, and a holding part Drives the relay held by the holding unit by generating a drive signal based on the control signal input to the signal terminal and the relay terminal that conducts contact with the control terminal of the held relay. A relay drive unit characterized by comprising a drive unit. The relay drive unit according to claim 1 and a relay,
The held portions are projected on the outer surface of the relay and are elongated in the contact direction of the control terminal with respect to the relay terminal, and on the opposite sides of the held projection from both sides in the short direction of the held projection. Holding protrusions,
The holding portion is provided with a holding groove in which the protrusion to be held is housed long in the contact direction of the control terminal with respect to the relay terminal, and a holding protrusion protruding from the inner surface of the holding groove in a direction intersecting the depth direction of the holding groove. Holding protrusions to stop,
The held portion and the holding portion are an engaging portion and an engaged portion that are engaged with each other in a state where the control terminal is in contact with the relay terminal and prohibits movement of the relay in a direction in which the relay terminal moves away from the control terminal. A relay unit characterized by having one of each.

Images