JP2021125285A - Terminal block system, terminal block, and lighting device - Google Patents

Abstract

To provide a terminal block system, a terminal block, and a lighting device that can improve workability related to work such as inserting a wire rod.SOLUTION: A terminal block system includes a terminal block 1 having an insertion port 100 into which a wire rod can be inserted and a lighting device 2 that can be attached to the terminal block 1. Light emitted from a light emitting unit 202 included in the lighting device 2 enters a housing 10 from an incident port 103 provided in the housing 10 of the terminal block 1 and is emitted from the insertion portion 100 through an optical path in the housing 10. An operator can visually recognize the insertion port 100 that is illuminated by the emitted light.SELECTED DRAWING: Figure 8

Description

The present invention relates to a terminal block system using a terminal block having an insertion port into which a wire rod such as a cable can be inserted, a terminal block used in such a terminal block system, and an illumination device.

Terminal blocks are used to connect various wire rods such as power lines and signal lines in electrical equipment such as switchboards, machine tools, and PV (photovoltaics) equipment. For example, as shown in Patent Document 1, the applicant of the present application has invented a push-in type terminal block in which a cable can be attached by simply inserting the cable into the insertion slot.

Japanese Patent No. 6418183

However, for example, when the terminal block is attached to a place where the working environment is bad, such as a dark place, the workability related to the work such as inserting the wire rod may be deteriorated.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a terminal block system capable of suppressing deterioration of workability with respect to the terminal block.

Another object of the present invention is to provide a terminal block and an illumination device used in such a terminal block system.

In order to solve the above problems, the terminal block system described in the present application is a terminal block system having a housing having an insertion port into which a wire rod can be inserted, and irradiates the terminal block with light. The housing provided with the illumination device and having the terminal block is provided with an incident port into which the light emitted by the illumination device is incident, and the insertion port is inside the housing through which the light incident from the incident port passes. It is characterized by being the exit of the optical path of.

Further, in the terminal block system described in the present application, the terminal block includes a holding member for holding a terminal inserted into the insertion port, and the holding member directs light incident from the incident port toward the insertion port. It is characterized by having a reflecting surface that reflects light.

Further, in the terminal block system described in the present application, the housing of the terminal block is provided with an auxiliary port into which a jig for releasing the holding by the holding member can be inserted, and the holding member is the incident port. It is characterized by having a reflecting surface that reflects light incident from the above toward the auxiliary port.

Further, in the terminal block system described in the present application, the holding member included in the terminal block includes an urging portion for pressing a wire rod inserted from the insertion port, and a reflective surface for reflecting light toward the insertion port and a reflective surface. The reflecting surfaces that reflect light toward the auxiliary port are formed at different positions on the urging portion.

Further, in the terminal block system described in the present application, the urging portion of the holding member provided in the terminal block reflects light toward the insertion port when a wire rod is not inserted into the insertion port, and the above-mentioned. By pressing the wire rod inserted into the insertion port, light is reflected toward the auxiliary port when the angle changes.

Further, in the terminal block system described in the present application, the illumination device is formed so as to be mountable on the terminal block.

Further, in the terminal block system described in the present application, the housing included in the terminal block has a plurality of the insertion ports, and the same number of the incident ports are provided so as to correspond to the plurality of insertion ports. The illuminating device includes the same number of light emitting units that emit light so as to correspond to the plurality of incident ports, and when the illuminating device is attached to the terminal block, the light emitting units are attached to the corresponding incident ports. It is characterized in that it is arranged at a position where light can be incident.

Further, in the terminal block system described in the present application, the illumination device is characterized in that the light emitting unit that emits light can be switched.

Further, in the terminal block system described in the present application, the plurality of insertion ports provided in the housing of the terminal block are alternately arranged along two parallel virtual straight lines on the same surface of the housing. It is characterized by being staggered in.

Further, the terminal block system described in the present application is characterized by comprising an attachment / maintenance mechanism for maintaining a state in which the illumination device is attached so as to be able to irradiate light toward the incident port of the terminal block.

Further, in the terminal block system described in the present application, the terminal block or the illumination device is provided with a regulation mechanism for regulating the mounting position and direction so as to be a predetermined position and direction.

Further, in the terminal block system described in the present application, at least one of the inside and the edge of the insertion slot provided in the terminal block is characterized in that the color is different from the surface of the housing around the insertion slot. And.

Further, in the terminal block system described in the present application, the edge portion of the insertion port provided in the terminal block is characterized in that it protrudes or is depressed from the surface of the housing around the insertion port.

Further, the terminal block described in the present application is a terminal block including a housing provided with an insertion port into which a wire rod can be inserted, and the insertion port is an outlet of an optical path in the housing through which light emitted from a light source passes. It is characterized by being.

Further, the illumination device described in the present application is configured to be mountable on a terminal block having a housing provided with an insertion port into which a wire rod can be inserted, and when mounted on the terminal block, the inside of the housing provided in the terminal block. It is characterized by being provided with a light emitting unit that irradiates light.

The terminal block system or the like according to the present invention irradiates light into the housing of the terminal block having an insertion port into which a wire rod can be inserted. As a result, in the terminal block system or the like according to the present invention, since the insertion port provided in the terminal block shines, work such as specifying the position of the insertion port becomes easy, and workability can be improved. , Has an excellent effect.

It is a schematic perspective view which shows an example of the appearance of the terminal block described in this application. It is a schematic plan view which shows an example of the appearance of the terminal block described in this application. It is the schematic sectional drawing which shows an example of the internal structure of the terminal block described in this application. It is a schematic perspective view which shows an example of the appearance of the holding member provided in the terminal block described in this application. It is schematic cross-sectional view which shows an example of the holding member provided in the terminal block described in this application. It is the schematic perspective view which shows an example of the appearance of the illumination apparatus described in this application. It is a schematic perspective view which shows an example of the terminal block system described in this application. It is a schematic perspective view which conceptually shows an example of the internal structure of the terminal block system described in this application. It is a circuit diagram which shows an example of the internal circuit of the illumination device described in this application. It is the schematic plan view which shows the part of the terminal block described in this application enlarged and schematically. It is the schematic cross-sectional view which shows typically an example of the internal structure of the terminal block described in this application. It is the schematic plan view which shows the part of the terminal block described in this application enlarged and schematically. It is the schematic cross-sectional view which shows typically an example of the internal structure of the terminal block described in this application. It is the schematic plan view which shows the part of the terminal block described in this application enlarged and schematically. It is the schematic cross-sectional view which shows typically an example of the internal structure of the terminal block described in this application. It is a schematic perspective view which shows an example of the appearance of the terminal block described in this application. It is the schematic perspective view which shows an example of the appearance of the illumination apparatus described in this application. It is a schematic perspective view which shows an example of the terminal block system described in this application. It is a schematic plan view which shows an example of the terminal block system described in this application. It is a schematic perspective view which conceptually shows an example of the internal structure of the terminal block system described in this application. It is a schematic perspective view which shows an example of the appearance of the terminal block described in this application. It is a schematic plan view which shows an example of the appearance of the terminal block described in this application. It is a schematic perspective view which shows an example of the appearance of the terminal block system described in this application. It is a schematic plan view which shows an example of the appearance of the terminal block system described in this application.

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

<Application example>
The terminal block system described in the present application is a system in which, for example, in electrical equipment such as switchboards, machine tools, and PV equipment, a terminal block to which various wires such as power lines and signal lines can be attached and detached is combined with an illumination device that emits light. .. As a specific configuration of the wire rod, various wire rods such as a ferrule terminal and a cable with a peeled outer skin can be exemplified. In the following, the terminal block 1 and the illumination device 2 exemplified in the drawings, and the terminal block system including them will be described with reference to the drawings.

<Configuration example>
<First Embodiment>
<Terminal block 1>
FIG. 1 is a schematic perspective view showing an example of the appearance of the terminal block 1 described in the present application, and FIG. 2 is a schematic plan view showing an example of the appearance of the terminal block 1 described in the present application. In the following description, the direction of the terminal block 1 is expressed with the upper side as the upper side, the lower side as the lower side, the front left side as the front side (front side), and the back side as the rear side toward the terminal block 1 illustrated in FIG. However, this is a direction for convenience of explanation, and does not limit the direction when the terminal block 1 is used.

The terminal block 1 described in the present application includes a housing 10 having a substantially rectangular parallelepiped shape. The housing 10 is made of a material having a color such as black. Six circular insertion ports 100 into which wire rods can be inserted are provided on the upper surface of the housing 10. The centers of the six insertion openings 100 are alternately staggered along two parallel virtual straight lines extending to the left and right on the upper surface of the housing 10. In FIG. 2, two virtual straight lines are shown by alternate long and short dash lines. As illustrated in FIG. 2, the plurality of insertion openings 100 are alternately arranged in a staggered manner along two parallel virtual straight lines on the same surface of the housing 10. The edge portion of the insertion port 100 is formed as a protruding portion 101 protruding from the surface of the housing 10 around the insertion port 100, and the inside of the protruding portion 101 and the insertion port 100 is different from the surface of the housing 10. It is a color. For example, when the surface of the housing 10 is black, the inside of the protrusion 101 and the insertion port 100 is a color such as yellow or white that is easily distinguishable from black. Coloring of various members such as black and yellow is carried out by forming using a resin material of a required color, but it is carried out by various methods such as coloring the surface after molding the resin material. Can be done. In the drawings of the present application, the colored portion is shown by cross-hatching. Further, since the inside of the insertion port 100 becomes an optical path as described later, it may be colored in silver, which easily reflects light, or may be mirror-finished.

On the upper surface of the housing 10, an auxiliary port 102 into which a jig such as a flat-blade screwdriver for releasing the holding by the holding member 11 can be inserted is provided for each insertion port 100. The auxiliary ports 102 are alternately arranged in a staggered manner so that the corresponding insertion ports 100 are located on the virtual straight line side opposite to the virtual straight line along the line. In the terminal block 1 illustrated in FIGS. 1 and 2, the auxiliary ports 102 are alternately arranged in a staggered manner so as to be located on the rear side or the front side of the corresponding insertion port 100. As illustrated in FIGS. 1 and 2, in the terminal block 1 described in the present application, units in which the insertion port 100 and the auxiliary port 102 are opened are arranged so as to be connected to the left and right while exchanging the front and back. It should be noted that the terminal block 1 is not configured as a form in which the units in which the insertion port 100 and the auxiliary port 102 are opened are connected to each other, but the housing 10 illustrated in FIGS. 1 and 2 may be integrally molded. It is possible. For example, by connecting a plurality of units, the expandability of the terminal block 1 becomes high, and by integrally molding the housing 10, it is possible to aim at cost reduction.

On the front surface and the back surface of the housing 10, an incident port 103 serving as an inlet of light emitted from an external light source such as an illumination device 2 (see FIG. 4 or the like) described later is provided for each insertion port 100. The incident port 103 is arranged on the side surface on the side where the corresponding insertion port 100 is arranged. Specifically, the incident port 103 corresponding to the insertion port 100 opened along the virtual straight line on the front side is opened on the front side of the housing 10, and is inserted along the virtual straight line on the rear side. The incident port 103 corresponding to the port 100 is provided on the back side of the housing 10. The incident port 103 is connected to the insertion port 100 and the auxiliary port 102 inside the housing 10, and the light incident from the incident port 103 passes through the optical path inside the housing 10 and passes through the insertion port 100 or the auxiliary port 102. Emit from. That is, the insertion port 100 serves as an outlet for an optical path inside the housing 10 through which the light emitted from the light source passes.

From the lower surface of the housing 10, connection terminals 110 for electrically connecting the wire rod fixed and held to the substrate to the circuit on the substrate are arranged in the front-rear direction. The connection terminals 110 are arranged on the left and right of each unit in which the insertion port 100 and the auxiliary port 102 are opened. The connection terminal 110 is integrated with the holding member 11 (see FIG. 3 and the like) housed in the housing 10 by a processing method such as caulking.

As described above, since the insertion ports 100 are staggered in the terminal block 1, interference between the wirings inserted in the adjacent insertion ports 100 can be suppressed, so that the distance between the insertion ports 100 is narrowed. It is possible to realize miniaturization as a whole. For example, when the units in which the insertion ports 100 and the auxiliary ports 102 are opened are arranged alternately so that the insertion ports 100 and the auxiliary ports 102 are arranged in a staggered arrangement, and when they are arranged so as to be in the same direction. In comparison with the above, in the staggered arrangement, even if the size of the unit itself is the same, the distance between the adjacent insertion openings 100 is longer. For example, in the case of a unit in which the distance between the center lines of adjacent units is 2.54 mm and the distance between the insertion port 100 and the auxiliary port 102 is 2.54 mm, the distance between the adjacent insertion ports 100 is the same. Is 2.54 mm, whereas in the staggered arrangement, the distance between the adjacent insertion openings 100 can be expanded to 3.5 mm. By increasing the distance between the adjacent insertion ports 100 in this way, it is possible to expect effects such as facilitation of the wire rod insertion work and suppression of interference between the wire rods.

FIG. 3 is a schematic cross-sectional view showing an example of the internal structure of the terminal block 1 described in the present application. FIG. 3 shows a cross section cut along a vertical plane including the AB line segment shown in the terminal block 1 illustrated in FIG. The inside of the housing 10 of the terminal block 1 is a cavity used as an optical path. A partition portion 104 is formed in the vicinity of the opening between the insertion port 100 and the auxiliary port 102 provided on the upper surface of the housing 10, but is connected inside the housing 10. The incident port 103 provided on the front surface or the back surface of the housing 10 is also connected to the insertion port 100 and the auxiliary port 102 inside the housing 10. Inside the housing 10, a holding member 11 for holding the wire rod inserted from the insertion port 100 is housed. The lower portion of the holding member 11 projects outward from the lower surface of the housing 10 as a connection terminal 110. The holding member 11 has an urging portion 111 that urges the wire rod inserted from the insertion port 100 to be held. The urging portion 111 is formed with a first reflecting surface 111a that reflects the light incident from the incident port 103 toward the insertion port 100 side and a second reflecting surface 111b that reflects the light incident toward the auxiliary port 102 side. ..

FIG. 4 is a schematic perspective view showing an example of the appearance of the holding member 11 included in the terminal block 1 described in the present application, and FIG. 5 is a schematic cross-sectional view showing an example of the holding member 11 included in the terminal block 1 described in the present application. be. FIG. 5 is shown as a cross-sectional view in which a part is cut in a vertical plane in order to show the shape of the urging portion 111 of the holding member 11. The holding member 11 housed in the housing 10 of the terminal block 1 will be further described. The holding member 11 is formed into a predetermined shape by performing processing such as punching and bending on a conductive metal plate. The lower portion of the holding member 11 has a connection terminal 110 extending in the front-rear direction fixed to the upper portion of the holding member 11 by a processing method such as caulking. In the holding member 11, above the connection terminal 110, the upper surface and a part of the side surface are formed in a substantially tubular shape so as to cover the optical path inside the housing 10. In the holding member 11, the side surface of the holding member 11 on the side facing the incident port 103 is formed together with the urging portion 111 as a holding portion 112 for sandwiching the inserted wire rod. The sandwiching portion 112 is provided with a circular passing port 112a for passing light emitted through the incident port 103. The urging portion 111 is a metal piece that is bent diagonally downward from the upper part of the side surface opposite to the incident port 103 toward the holding portion 112 side, and the metal piece that extends diagonally downward from the bent portion is incident by elasticity. It functions as a spring such as a leaf spring or a bow spring that urges the mouth 103 side. The urging portion 111 is a portion located below the partition portion 104 of the housing 10, and is molded so that the angle changes. The tip side below the position where the angle changes becomes the first reflecting surface 111a, and the angle changes. The root side above the position is the second reflecting surface 111b.

<Illumination device 2>
FIG. 6 is a schematic perspective view showing an example of the appearance of the illumination device 2 described in the present application. The illumination device 2 is a device that can be attached to the terminal block 1 as an external light source, and by attaching to the terminal block 1, it irradiates light toward the incident port 103 provided in the housing 10 of the terminal block 1. .. The illumination device 2 includes an illumination unit 20 including a light emitting unit 202 such as an LED (Light Emitting Diode), and a switching unit 21 wiredly connected to the illumination unit 20. In the drawings of the present application, some wiring for electrically connecting the illumination unit 20 and the switching unit 21 is omitted.

The illumination unit 20 includes two arm portions 200 forming a square columnar shape in which a plurality of light emitting portions 202 are incorporated on the side surfaces, and a connecting portion 201 for connecting one ends of the two arm portions 200 to each other, as a whole. , It is formed in a substantially U-shape (approximately U-shape). The illumination unit 20 can be attached to the terminal block 1 by sandwiching the terminal block 1 between the arm portions 200. In order to improve workability when sandwiched by the arm portion 200, the illumination unit 20 can separate the connecting portion 201 back and forth and divide it into two halves. The light emitting portion 202 of the illumination unit 20 is arranged at a position facing the other arm portion 200 side so as to irradiate the incident port 103 of the terminal block 1 when sandwiched between the two arm portions 200. The thickness (length in the front-rear direction) of the arm portion 200 of the illumination unit 20 is preferably configured to be as thin as possible in order to avoid interference with surrounding parts after mounting the terminal block 1 on the substrate.

The changeover unit 21 includes a power supply switch 210 and a changeover switch 211. The power switch 210 is a switch that opens and closes an energization circuit that energizes the light emitting unit 202. The changeover switch 211 is a switch for selecting a light emitting unit 202 to be energized, and FIG. 6 illustrates a mode in which a rotary switch is used.

<Terminal block system>
FIG. 7 is a schematic perspective view showing an example of the terminal block system described in the present application, and FIG. 8 is a schematic perspective view conceptually showing an example of the internal structure of the terminal block system described in the present application. 7 and 8 show a state in which the illumination device 2 is attached to the terminal block 1 as a terminal block system. FIG. 8 shows a part of the internal structure disassembled and transmitted through from the state shown in FIG. 7 so that the internal structure can be visually recognized. As illustrated in FIGS. 7 and 8, the illuminating device 2 is attached to the terminal block 1 by abutting the arm portion 200 of the illuminating unit 20 with the front and back surfaces of the terminal block 1 and sandwiching it from the front and back. .. The arm portion 200 incorporates a fixing plate 203 for fixing the light emitting portion 202. The wiring that is electrically connected to the switching unit 21 and the light emitting unit 202 that is connected to the wiring are fixed to the fixing plate 203. When the illuminating device 2 is attached to the terminal block 1, the light emitting unit 202 incorporated in the arm portion 200 of the illuminating device 2 is arranged at a position capable of irradiating light toward the incident port 103 of the terminal block 1.

A fixed shaft 204 is attached to one half of the connecting portion 201 of the illuminating unit 20 included in the illuminating device 2 for positioning when connecting the separated halves, and the fixed shaft 204 is attached to the other half. A first recess 205 that can be inserted is formed. Further, in order to fix the illumination device 2 to the terminal block 1, a permanent magnet 206 such as a neodymium magnet is incorporated in one half of the connecting portion 201 of the illumination device 2, and a permanent magnet 206 is inserted in the other half. A possible second recess 207 is formed.

When the illumination device 2 is attached to the terminal block 1, first, the illumination unit 20 of the illumination device 2 is separated by the connecting portion 201. The light emitting unit 202 incorporated in the separated front half body arm 200 faces the incident port 103 provided on the front surface of the terminal block 1, and the light emitting unit incorporated in the rear half body arm 200 faces the incident port 103. The half body of the illumination device 2 is brought into contact with the terminal block 1 from the front and back so that 202 faces the incident port 103 provided on the back surface of the terminal block 1. Then, the fixed shaft 204 and the permanent magnet 206 of the rear half of the illumination device 2 are inserted into the first recess 205 and the second recess 207 of the front half, respectively. Further, the illumination unit 20 of the illumination device 2 can be attached to the terminal block 1 by fixing it to the iron plate 105 or the like incorporated in the side surface of the terminal block 1 by the magnetic force of the permanent magnet 206 incorporated in the illumination device 2. .. With the illumination unit 20 of the illumination device 2 attached to the terminal block 1, the user operates the power switch 210 and the changeover switch 211 of the changeover unit 21 to light an arbitrary light emitting unit 202 of the illumination unit 20. Then, the light is irradiated toward the incident port 103 of the terminal block 1. The iron plate 105 incorporated in the terminal block 1 and the permanent magnet 206 incorporated in the illuminating device 2 are attached to maintain a state in which the illuminating device 2 is attached so as to be able to irradiate light toward the incident port 103 of the terminal block 1. Functions as a maintenance mechanism. The mounting / maintaining mechanism for maintaining the positioning and fixing state of the terminal block 1 and the illuminating device 2 is not limited to the iron plate 105 and the permanent magnet 206, but also various fitting holes for fitting the ball plunger and the ball plunger. It is possible to use a mechanism.

FIG. 9 is a circuit diagram showing an example of the internal circuit of the illumination device 2 described in the present application. In FIG. 9, the internal circuit of the illumination device 2 is simplified and shown as an equivalent circuit. The illumination device 2 includes a plurality of light emitting units 202 using light emitting elements such as LEDs, a power switch 210, a changeover switch 211, a power supply, and the like. The circuit opens and closes by accepting an operation on the power switch 210. By accepting the switching operation for the changeover switch 211 in the on state with the circuit closed, one selected light emitting unit 202 emits light.

Next, in the terminal block system described in the present application, a state when the illumination device 2 is attached to the terminal block 1 and a wire rod is inserted will be described. FIG. 10 is a schematic plan view schematically showing an enlarged part of the terminal block 1 described in the present application, and FIG. 11 is a schematic cross-sectional view schematically showing an example of the internal structure of the terminal block 1 described in the present application. Is. 10 and 11 schematically show a state in which a wire rod is inserted into the insertion port 100 of the terminal block 1. FIG. 10 shows a part of the terminal block 1 from above. In FIG. 10, the illumination device 2 and the wire rod are omitted so that the state of the terminal block 1 can be easily grasped. Further, in FIGS. 10 and 11, the irradiation direction of the light and the state of being irradiated are shown by pointillism. FIG. 11 shows a state in which the illumination device 2 is attached to the terminal block 1 and light is irradiated from the illumination device 2. In addition, it is shown as a state in which the tip of the wire rod has entered the insertion port 100 so that the insertion portion of the wire rod can be easily grasped. As shown by the pointillized arrows in FIG. 11, the light emitted from the light emitting portion 202 of the illuminating device 2 is incident from the incident port 103 of the terminal block 1 and passes through the passing port 112a of the holding member 11 to the urging portion 111. It is reflected by the first reflecting surface 111a of the above and is emitted from the insertion port 100. By adjusting the angle θ1 formed by the incident light and the first reflecting surface 111a to an angle such as 45 degrees in a state where the wire is not sandwiched, the reflection angle is such that the light is emitted from the insertion port 100. Can be adjusted. The operator recognizes the terminal block 1 in the state illustrated in FIG. 10 when inserting the wire rod. The insertion port 100 of the terminal block 1 when inserting the wire rod has a protruding portion 101 which is an edge portion, and the color is different from the surroundings, and the inside of the insertion port 100 into which the wire rod is to be inserted is shining. Therefore, it is easy for the operator to visually and tactilely identify the position of the insertion port 100 into which the wire rod is to be inserted, and the operator can perform accurate work even in a narrow place, a dark place, or other places where the work environment is poor. It will be possible.

FIG. 12 is a schematic plan view schematically showing an enlarged part of the terminal block 1 described in the present application, and FIG. 13 is a schematic cross-sectional view schematically showing an example of the internal structure of the terminal block 1 described in the present application. Is. Note that FIG. 12 corresponds to FIG. 10, and FIG. 13 corresponds to FIG. 12 and 13 schematically show a state in which a wire rod is inserted into the insertion port 100 of the terminal block 1 and the tip of the wire rod begins to press the urging portion 111 of the holding member 11. As shown in FIGS. 12 and 13, when the tip of the wire rod starts pressing the urging portion 111 of the holding member 11, the angle of the urging portion 111 changes, so that the illuminance of the light visually recognized from the insertion port 100 is It is suppressed.

FIG. 14 is a schematic plan view schematically showing an enlarged part of the terminal block 1 described in the present application, and FIG. 15 is a schematic cross-sectional view schematically showing an example of the internal structure of the terminal block 1 described in the present application. Is. Note that FIG. 14 corresponds to FIGS. 10 and 12, and FIG. 15 corresponds to FIGS. 11 and 13. 14 and 15 schematically show a state in which the wire rod is substantially completely inserted into the insertion port 100 of the terminal block 1 and the wire rod presses the urging portion 111 of the holding member 11. As shown in FIGS. 14 and 15, when the wire rod is inserted, the wire rod presses the urging portion 111 and the urging portion 111 bends. The repulsive force of the bent urging portion 111 pushes the wire rod toward the holding portion 112 side of the holding member 11. In this state, the wire rod is sandwiched between the urging portion 111 and the sandwiching portion 112, and is held in the terminal block 1. In a state where the wire rod is held by the holding member 11 in the terminal block 1, the wire rod is electrically connected to the connection terminal 110. Further, as shown by the pointillistic arrows in FIG. 15, the light emitted from the light emitting unit 202 of the illumination device 2 is incident from the incident port 103 of the terminal block 1 and passes through the passing port 112a of the holding member 11. It is reflected by the urging unit 111. The reflection angle is adjusted by adjusting the angle θ2 formed by the incident light and the second reflecting surface 111b of the urging portion 111 to an angle such as 45 degrees while the wire is bent and sandwiched. Then, the incident light can be adjusted so as to be reflected by the second reflecting surface 111b and emitted from the auxiliary port 102. When the inserted wire is pulled out from the insertion port 100, the operator inserts a jig such as a flat-blade screwdriver into the auxiliary port 102, further presses the urging portion 111, and releases the holding by the holding member 11. I do. An operator who wants to pull out the inserted wire rod will recognize the terminal block 1 in the state illustrated in FIG. 14 when inserting the jig. The inside of the auxiliary port 102 of the terminal block 1 when the jig is inserted is in a state of being illuminated by the light reflected by the second reflecting surface 111b of the urging portion 111. Therefore, the operator can easily visually identify the position of the auxiliary port 102 into which the jig should be inserted, and can perform accurate work even in a narrow place, a dark place, or other places where the work environment is poor. It becomes.

As described above, in the terminal block system described in the present application, the illumination device 2 can be attached to the terminal block 1. In the terminal block system described in the present application, the light emitted from the illumination device 2 attached to the terminal block 1 is reflected by the urging portion 111 of the holding member 11 included in the terminal block 1, and the insertion port 100 or the insertion port 100 for inserting the wire rod is inserted. It is possible to illuminate the auxiliary port 102 into which the jig is inserted. As a result, the terminal block 1 provided in the terminal block system described in the present application can make the insertion port 100 or the auxiliary port 102 stand out. Therefore, since the operator can visually identify the position of the insertion port 100 or the auxiliary port 102, it is possible to suppress the occurrence of work mistakes and perform accurate work even in a dark place. That is, the terminal block system described in the present application has excellent effects such as being able to improve workability.

Further, in the terminal block 1 described in the present application, the edge portion of the insertion port 100 is formed as a protruding portion 101 protruding from the surface of the housing 10 around the insertion port 100, and the inside of the protruding portion 101 and the insertion port 100 is formed. It is colored in a color different from the surface of the housing 10. As a result, the terminal block 1 described in the present application can make the insertion port 100 stand out. Therefore, the operator who inserts the wire rod into the insertion port 100 of the terminal block 1 can specify the position of the insertion port 100 by touch and sight. That is, the terminal block system described in the present application has excellent effects such as being able to improve workability. Such an effect becomes more remarkable as the number of terminal blocks 1 has a large number of poles.

Further, the terminal block 1 described in the present application has an insertion port for inserting a wire rod by reflecting the light emitted from the illuminating device 2 by the urging portion 111 of the holding member 11 by attaching the illuminating device 2 described in the present application. It is possible to illuminate the 100 or the auxiliary port 102 into which the jig is inserted. As a result, the terminal block 1 described in the present application can make the insertion port 100 or the auxiliary port 102 stand out. Therefore, the operator can visually identify the position of the insertion port 100 or the auxiliary port 102. That is, the terminal block system described in the present application has excellent effects such as being able to improve workability even in a dark place.

Moreover, in the terminal block 1 described in the present application, since the angle of the urging portion 111 is different between the first reflecting surface 111a and the second reflecting surface 111b, the reflection direction can be changed according to the bending angle of the urging portion 111. It is possible. As a result, in the terminal block 1 described in the present application, the insertion port 100 into which the wire rod is inserted shines when the wire rod is not inserted, and the auxiliary port 102 into which the jig is inserted shines when the wire rod is inserted. Since it shines, the insertion port 100 or the auxiliary port 102 to be worked on can be made to stand out. Therefore, the operator can visually identify the position of the insertion port 100 or the auxiliary port 102 to be worked on even in a dark place. That is, the terminal block system described in the present application has excellent effects such as being able to improve workability.

Further, in the illumination device 2 described in the present application, the light emitting unit 202 can be switched by the switching unit 21. As a result, the terminal block 1 described in the present application illuminates only the insertion port 100 or the auxiliary port 102 to be worked on among the plurality of inserted insertion ports 100 and auxiliary ports 102, and the insertion port 100 to be worked on. Alternatively, only the auxiliary port 102 can be made to stand out. Therefore, the operator can visually identify the position of the insertion port 100 or the auxiliary port 102 to be worked on. Therefore, the terminal block system described in the present application has excellent effects such as suppressing the occurrence of work mistakes and enabling accurate work even in a dark place.

Further, in the terminal block 1 described in the present application, insertion ports 100 are alternately arranged in a staggered manner along two parallel virtual straight lines on the upper surface of the housing 10. As a result, the terminal block 1 described in the present application has excellent effects such as being able to facilitate the insertion work into the insertion port 100. Further, the terminal block 1 described in the present application has excellent effects such as being able to suppress interference between wirings inserted into adjacent insertion ports 100. Therefore, since the size of the terminal block 1 as a whole can be reduced while maintaining a substantial distance between the insertion ports 100, it is possible to aim at the miniaturization of the terminal block 1 and obtain excellent effects. ..

<Second Embodiment>
The second embodiment is a mode in which the insertion ports 100 provided in the housing 10 of the terminal block 1 are arranged in a row in the first embodiment. The same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description of the first embodiment will be referred to, and detailed description thereof will be omitted.

FIG. 16 is a schematic perspective view showing an example of the appearance of the terminal block 1 described in the present application. FIG. 17 is a schematic perspective view showing an example of the appearance of the illumination device 2 described in the present application. FIG. 18 is a schematic perspective view showing an example of the terminal block system described in the present application. FIG. 19 is a schematic plan view showing an example of the terminal block system described in the present application. FIG. 20 is a schematic perspective view conceptually showing an example of the internal structure of the terminal block system described in the present application. FIG. 20 shows a part of the illumination device 2 decomposed and transmitted so that the internal structure can be visually recognized.

As illustrated in FIGS. 16 to 20, in the terminal block system according to the second embodiment, the insertion ports 100 provided in the housing 10 of the terminal block 1 are arranged in one row instead of two rows. The incident port 103 corresponding to the insertion port 100 is provided only on one side of the front surface and the back surface of the housing 10 of the terminal block 1. Further, the light emitting unit 202 that irradiates the incident port 103 with light is also attached only to one arm portion 200 that is attached to the incident port 103 side of the illuminating device 2.

The terminal block system according to the second embodiment configured as described above can illuminate the insertion port 100 or the auxiliary port 102 of the terminal block 1 by the light emitted from the illumination device 2. As a result, the terminal block system described in the present application has excellent effects such as being able to improve workability.

<Third Embodiment>
The third embodiment is a mode in which the two rows of insertion ports 100 opened in the housing 10 of the terminal block 1 are not staggered in the first embodiment. The same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description of the first embodiment will be referred to, and detailed description thereof will be omitted.

FIG. 21 is a schematic perspective view showing an example of the appearance of the terminal block 1 described in the present application. FIG. 22 is a schematic plan view showing an example of the appearance of the terminal block 1 described in the present application. FIG. 23 is a schematic perspective view showing an example of the appearance of the terminal block system described in the present application. FIG. 23 shows a part of the illumination device 2 transmitted through so that the internal structure can be visually recognized.

As illustrated in FIGS. 21 to 23, in the terminal block system according to the third embodiment, the two rows of insertion ports 100 opened in the housing 10 of the terminal block 1 are not staggered, but are back-to-back in the front-rear direction. It is arranged so as to be. More specifically, in the terminal block 1 according to the third embodiment, the units in which the insertion port 100 and the auxiliary port 102 are opened are arranged in the front-rear direction so as to be in opposite directions, and are continuously provided on the left and right sides. Is arranged. Therefore, in the housing 10 of the terminal block 1, the incident ports 103 are continuously provided on both the front surface and the back surface. Further, the light emitting unit 202 that irradiates the incident port 103 with light is also continuously attached to the arm portions 200 on both the front and rear sides of the illuminating device 2.

The terminal block system according to the third embodiment configured as described above can illuminate the insertion port 100 or the auxiliary port 102 of the terminal block 1 by the light emitted from the illumination device 2. As a result, the terminal block system described in the present application has excellent effects such as being able to improve workability.

Further, the terminal block system according to the third embodiment has excellent effects such as being able to increase the arrangement density of the insertion ports 100 because the insertion ports 100 are continuously provided in two rows. ..

<Fourth Embodiment>
FIG. 24 is a schematic plan view showing an example of the appearance of the terminal block 1 described in the present application. The terminal block 1 according to the fourth embodiment is a form in which the side portions of the housing 10 of the terminal block 1 have different lengths on the left and right in the first embodiment. In the terminal block 1 according to the third embodiment, the length of the right end portion 10a of the housing 10 in the left-right direction is half the length of the left end portion 10b. The difference between the length of the left end portion 10b and the length of the right end portion 10a is about ½ of the pitch (arrangement interval) of the insertion port 100. By configuring as illustrated in the fourth embodiment, when the direction in which the illuminating device 2 is attached to the terminal block 1 is wrong in the left-right direction, the incident port 103 of the terminal block 1 and the light emitting unit 202 of the illuminating device 2 are used. Since the position of and is shifted by 1/2 pitch, the illumination function does not work, and the operator can notice the erroneous operation. That is, the right end portion 10a and the left end portion 10b of the housing 10 function as a regulation mechanism that regulates the mounting positions and directions of the terminal block 1 and the illumination device 2 so as to be predetermined positions and directions. As illustrated in FIG. 24, the regulation mechanism can be provided as various shapes and mechanisms regardless of the asymmetrical shape such as the length of the terminal block 1 in the mounting direction. It is also possible to provide a regulation mechanism on the illumination device 2 side.

The present invention is not limited to the respective embodiments described above, and can be implemented in various other embodiments. Therefore, the above embodiments are merely exemplary in all respects and should not be construed in a limited way. The technical scope of the present invention is described by claims and is not bound by the text of the specification. Furthermore, all modifications and modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

Further, for example, in the above-described embodiment, the urging portion 111 is changed in angle on the way to form the first reflecting surface 111a and the second reflecting surface 111b, but the present invention is not limited to this. For example, only the portion to be reflected on the insertion port 100 side corresponding to the first reflecting surface 111a may be mirror-finished, and the portion corresponding to the second reflecting surface 111b may be subjected to antiglare processing to suppress reflection. In this case, only the insertion port 100 side is illuminated, but the degree of freedom in designing the shape of the urging portion 111 can be increased.

Further, for example, in the above-described embodiment, the edge portion of the insertion port 100 of the housing 10 is set as the projecting portion 101, but the present invention is not limited to this, and various irregularities such as denting the edge portion are formed. It can be attached to make it stand out. That is, the edge portion of the insertion port 100 may be projected or depressed as compared with the periphery outside the edge portion of the insertion port 100. Further, the shape of the protrusion or depression may be formed as a stepped step as illustrated in FIG. 12, but is a stepless straight line such as a conical protrusion or a mortar-shaped depression. It may be formed as a convex or curved protrusion or depression.

1 Terminal block 10 Housing 10a Right end (regulatory mechanism)
10b Left end (regulatory mechanism)
100 Insertion port 101 Protruding part 102 Auxiliary port 103 Incident port 104 Partition part 105 Iron plate (mounting maintenance mechanism)
11 Holding member 110 Connection terminal 111 Biasing part 111a First reflecting surface 111b Second reflecting surface 112 Holding part 112a Passing port 2 Illuminating device 20 Illuminating unit 202 Light emitting part 206 Permanent magnet (connection maintenance mechanism)
21 Changeover unit 211 Changeover switch

Claims (15)

A terminal block system having a terminal block having a housing having an insertion port into which a wire rod can be inserted.
The terminal block is provided with an illuminating device that irradiates light.
The housing included in the terminal block is
An incident port is opened to which the light emitted by the illuminating device is incident.
A terminal block system characterized in that the insertion port serves as an outlet of an optical path in the housing through which light incident from the entrance port passes. The terminal block system according to claim 1.
The terminal block
A holding member for holding the terminal inserted into the insertion slot is provided.
The holding member is
A terminal block system having a reflecting surface that reflects light incident from the incident port toward the insertion port. The terminal block system according to claim 2.
The housing included in the terminal block is
An auxiliary port into which a jig for releasing the holding by the holding member can be inserted is provided.
The holding member is
A terminal block system having a reflecting surface that reflects light incident from the incident port toward the auxiliary port. The terminal block system according to claim 3.
The holding member included in the terminal block is
It is provided with an urging portion that presses the wire rod inserted from the insertion port.
A terminal block system characterized in that a reflecting surface that reflects light toward the insertion port and a reflecting surface that reflects light toward the auxiliary port are formed at different positions on the urging portion. The terminal block system according to claim 4.
The urging portion of the holding member included in the terminal block is
When no wire is inserted into the insertion slot, light is reflected toward the insertion slot to reflect light.
A terminal block system characterized in that when a wire rod inserted into the insertion port is pressed, light is reflected toward the auxiliary port when the angle changes. The terminal block system according to any one of claims 1 to 5.
The illumination device is
A terminal block system characterized in that it is formed so as to be mountable on the terminal block. The terminal block system according to claim 6.
The housing included in the terminal block is
Multiple insertion ports have been opened
The same number of incident ports are provided so as to correspond to the plurality of insertion ports.
The illumination device is
The same number of light emitting parts that emit light are provided so as to correspond to the plurality of incident ports.
A terminal block system characterized in that when the illumination device is attached to the terminal block, the light emitting unit is arranged at a position where light can be incident on the corresponding incident port. The terminal block system according to claim 7.
The illumination device is a terminal block system characterized in that the light emitting unit that emits light can be switched. The terminal block system according to claim 7 or 8.
The plurality of insertion ports provided in the housing of the terminal block are alternately arranged in a staggered manner along two parallel virtual straight lines on the same surface of the housing. Terminal block system. The terminal block system according to any one of claims 6 to 9.
A terminal block system comprising a mounting and maintenance mechanism for maintaining a state in which the illuminating device is mounted so as to be able to irradiate light toward the incident port of the terminal block. The terminal block system according to any one of claims 6 to 10.
The terminal block or the illumination device
A terminal block system characterized in that it is provided with a regulation mechanism that regulates the mounting position and direction so as to be a predetermined position and direction. The terminal block system according to any one of claims 1 to 11.
A terminal block system characterized in that at least one of the inside and the edge of the insertion slot provided in the terminal block has a color different from that of the housing surface around the insertion slot. The terminal block system according to any one of claims 1 to 12.
A terminal block system in which an edge portion of the insertion port provided in the terminal block protrudes or is depressed from the surface of the housing around the insertion port. A terminal block having a housing with an insertion port into which a wire can be inserted.
The insertion port is a terminal block characterized by serving as an outlet of an optical path in the housing through which light emitted from a light source passes. It is configured so that it can be attached to a terminal block equipped with a housing with an insertion port into which a wire can be inserted.
An illumination device including a light emitting unit that irradiates light into the housing included in the terminal block when attached to the terminal block.

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