JP6572445B2 - Electrical equipment - Google Patents

Description

  The present invention relates to an electrical device such as a dimming terminal of a remote monitoring control system.

  2. Description of the Related Art Conventionally, an electric device that is housed in a distribution board such as a dimming terminal of a remote monitoring control system is known, and is disclosed in Patent Document 1, for example.

  The electrical equipment is provided with a plurality of sets of terminal portions each consisting of two screw terminals along the short direction at both ends in the longitudinal direction of the housing. A power supply terminal portion to which the electric wire is connected and a load terminal portion to which the electric wire from the illumination load is connected are provided. Here, since power is supplied from an external power source such as a commercial power source to the power source terminal portion, a higher voltage is applied as compared with other terminal portions. For this reason, a terminal cover is provided on the power supply terminal portion in order to prevent an electric shock from being touched by a finger of a hand. The terminal cover described in FIG. 4 of Patent Document 1 is formed in a substantially rectangular plate shape from an insulating material. The terminal cover includes a main piece covering the upper surface opening of each terminal recess, an extending piece projecting downward from a side end of the main piece and covering a part of the side opening of each terminal recess, and an extending piece And a separating piece projecting downward from the lower end edge of the main piece and projecting at a predetermined interval along the longitudinal direction of the main piece. The isolation piece projects a fitting projection that protrudes toward the housing, and the housing is fitted to each fitting projection at a position corresponding to each fitting projection on the lower end portion of the front surface. A recess is provided. In other words, by fitting the fitting protrusion into the fitting recess, it is difficult to create a gap between the terminal cover and the housing, thereby preventing the finger of the hand from entering the power terminal portion.

JP 2009-266487 A

  However, in the above conventional example, after positioning the terminal cover with the upper surface opening of each terminal recess from above, the terminal cover is connected to each terminal by an operation of fitting the fitting protrusion into the fitting recess from the front. It is necessary to arrange in the recess for use, which leads to deterioration of workability. In addition, when the fitting protrusion is fitted into the fitting recess, the separation piece is fixed to the housing at one point. Therefore, when a lateral pressing force is applied to the separation piece, the separation piece is pushed. There is a possibility that it may bend in the direction of the pressure and allow the finger of the hand to enter.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an electrical device that can improve the prevention of fingers from entering a power terminal portion.

The control device of the present invention has a rectangular box shape surrounded by a top surface, a bottom surface, and four side surfaces, and a housing in which a control circuit is housed, and the top surface and the side surface of the housing. A terminal recess that is opened upward and laterally across and is divided into a plurality of partitions by a partition wall in a direction along a boundary angle portion between the top surface and the side surface, and is electrically connected to the control circuit, A plurality of terminal portions exposed from the housing on the inner bottom surface of each of the terminal recesses, a main piece attached to the housing so as to cover an upper opening of the terminal recess, and a side of the main piece It is an electrical apparatus provided with a terminal cover having a separating piece extending from an edge and projecting at a predetermined interval along the longitudinal direction of the main piece. The separating piece extends downwardly from a side opening of the terminal recess along a part of the casing positioned in parallel with the partition wall and the isolation, and the casing is formed of the separating piece. A pair of projecting portions that sandwich the lower end from both sides thereof project from the side surface of the housing.

  Preferably, each of the pair of protrusions protrudes as a long ridge in the vertical direction.

  Preferably, the isolation piece has a substantially H-shaped cross section, and both side openings of the H shape are formed so as to face inward and outward of the casing.

  Preferably, among the plurality of projections, the projections located on the outermost side are provided with guide projections each extending upward at an upper end portion, and having a lower end of the isolation piece slidably contacted in the vertical direction. Prepare.

  ADVANTAGE OF THE INVENTION According to this invention, the penetration | invasion prevention of the finger of the hand to the terminal part for power supplies can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The whole block diagram which shows the electric equipment which concerns on 1st embodiment of this invention. The disassembled block diagram which shows the electric equipment which concerns on 1st embodiment of this invention. The whole block diagram which shows the terminal cover of the electric equipment which concerns on 1st embodiment of this invention.

  Hereinafter, an embodiment of an electrical apparatus according to the present invention will be described with reference to the drawings. In the following description, the vertical direction in FIG. 1 is defined as the vertical direction, the front side of the paper surface in the short direction of the main piece 40 of the terminal cover 4 is defined as the front direction, and the back side of the paper surface is defined as the rear direction.

  As shown in FIG. 2, the electrical device has a rectangular box shape surrounded by a top surface, a bottom surface, and four side surfaces, and includes a housing 2 in which a control circuit is accommodated and a terminal cover 4. . The housing 2 is provided with terminal recesses 20 that are opened upward and laterally across the top surface and the side surface, and are partitioned into a plurality by partition walls 21 in a direction along a boundary angle portion between the top surface and the side surface. . The terminal recess 20 includes a plurality of terminal portions 24 that are electrically connected to the control circuit and are exposed from the housing 2 at the bottoms thereof.

  The terminal cover 4 is integrally extended downwardly from a substantially rectangular main piece 40 attached to the housing 2 so as to cover the upper opening of the terminal recess 20 and a side edge in the longitudinal direction of the main piece 40. The separating piece 42 protrudes at a predetermined interval along the longitudinal direction of the main piece 40.

  The main piece 40 is provided with four substantially circular jig insertion holes 40b extending in the longitudinal direction that are inserted in the thickness direction and into which a jig such as a screwdriver for tightening the screw terminal is inserted. Further, a substantially circular screw insertion hole 40a communicating with a screw insertion hole 22a of the casing 2 described later is provided in a substantially central portion in the longitudinal direction of the main piece 40 in the thickness direction. Thus, the terminal cover 4 is attached and fixed to the housing 2 by inserting the fixing screws 5 into the screw insertion holes 40a and the screw insertion holes 22a of the housing 2 and screwing them together.

As shown in FIG. 3, the jig insertion hole 40 b of the terminal cover 4 includes a surrounding wall 45 on the back surface side of the main piece 40. By providing the surrounding wall 45 around the jig insertion hole 40b, it can be expected to increase the strength of the jig insertion hole 40b. For example, the surrounding wall 45 is configured such that the portion located in the short direction of the main piece 40 is separated from the jig insertion hole 40b in the longitudinal direction, and the portion located in the longitudinal direction of the main piece 40 includes the jig insertion hole 40b. Consists of a semi-circular bowl surrounding. In addition, by making the short direction of the main piece 40 a quadrangular shape and the longitudinal direction a semicircular shape, the degree of freedom to move in the front-rear direction compared to the left-right direction is increased by inserting a tool from the jig insertion hole 40b, Improvement in workability can also be expected. However, the shape of the surrounding wall 45 is not limited to this shape. For example, you may make it the same shape as the upper surface opening of the recess 20 for terminals. By making the surrounding wall 45 into the same shape, an effect of determining the position when the terminal cover 4 is arranged on the housing 2 can be expected.

  As shown in FIG. 1, the separating piece 42 is configured to face the front of the partition wall 21 of each terminal recess 20 in a state where the terminal cover 4 is attached to the housing 2. As shown in FIG. 2, the isolation piece 42 protrudes downward from the side edge of the main piece 40, and is provided with a plurality (five in the drawing) of predetermined gaps. This gap is arranged in front of the opening on the front side of each terminal recess 20, and the lower end portion of the separating piece 42 is in contact with the front surface of the housing 2. That is, the separation pieces 42 are provided so as to be spaced apart from each other so as to open the front opening of each terminal recess 20 when the terminal cover 4 is attached.

  As shown in FIG. 3, the cross-section of the separating piece 42 is substantially H-shaped, and is formed so that both H-side openings face inward and outward of the housing 2. By using this shape, the strength of the legs can be expected. Even when a force is applied in the lateral direction, there is no deflection in the direction of the force, and it is expected to more reliably prevent the hand from touching the terminal portion 24 from the outside after the terminal cover 4 is installed on the housing 2. it can.

  The terminal cover 4 may be provided with a hidden piece 41 that covers a part of the side surface of the terminal recess 20 between the main piece 40 and the separating piece 42. The hidden piece 41 is provided in a gap between the separating pieces 42 protruding from the side edge of the main piece 40. By providing the hidden piece 41, it can be expected that the separating piece 42 extending from the side edge of the main piece 40 is strengthened. In addition, since a part of the terminal recess 20 is covered, the side opening is narrowed when the terminal cover 4 is attached, and an effect of preventing a human finger from entering can be expected.

  As shown in FIG. 2, the housing 2 is provided with a pair of protrusions 23 that sandwich the lower end portions of the individual separating pieces 42 at positions corresponding to the lower end portions of the individual separating pieces 42 on the front surface of the housing 2. The protrusion 23 has a plurality of pairs of protrusions 23 as a set on the front surface portion of the housing 2 where the lower end of each isolation piece 42 is located. The pair of protrusions 23 are located below the partition wall 21 and have a gap in the lateral direction of each isolation piece 42. The protrusions 23 are composed of pairs of protrusions 23 corresponding to the number of isolation pieces 42 of the terminal cover 4. The protruding portion 23 protects the lower end portion of the separating piece 42 by holding the lower end portion of the separating piece 42 by the protruding portion 23 of the housing 2. The pair of protrusions 23 protrudes as long ridges in the vertical direction. About this shape, if it protrudes from the surface of the housing 2, it will not specifically limit. For example, a round shape may be sufficient. Of the plurality of protrusions 23, the outermost protrusion 23 includes a guide protrusion 23 a that extends upward at the upper end portion and in which the lower end of the isolation piece 42 is slidably contacted in the vertical direction. Accordingly, when the terminal cover 4 is positioned on the housing 2, it becomes difficult to apply a force from between the separating piece 42 and the housing 2, and it is also difficult to apply a force to the terminal cover 4 in the vertical direction. Therefore, it is not possible to make a space for forcibly inserting a person's finger, and it can be expected that the finger will be difficult to insert. Further, when the terminal cover 4 is disposed, it can be expected to prevent a lateral shift.

  As described above, a control device that prevents the finger of the hand from entering the power terminal portion is configured by making it difficult to create a gap between the terminal cover and the housing.

  The effects on the claims will be described below.

The present invention has a rectangular box shape surrounded by a top surface, a bottom surface, and four side surfaces, and a housing 2 in which a control circuit is accommodated, and a top surface and a side surface of the housing 2. A terminal recess 20 that opens to the side and is partitioned into a plurality of partitions 21 by a partition wall 21 in a direction along the boundary angle portion between the top surface and the side surface, and is electrically connected to the control circuit, and is connected to the terminal recess 20 From a plurality of terminal portions 24 exposed from the housing 2 on each inner bottom surface, a main piece 40 attached to the housing 2 so as to cover the upper opening of the terminal recess 20, and a side edge of the main piece 40 An electrical device provided with a terminal cover 4 that extends downwardly and has a separating piece 42 that protrudes at a predetermined interval along the longitudinal direction of the main piece 40, and the separating piece 42 is parallel to the partition wall 21 and the partition wall 21. Along the part of the housing 2 located at the bottom, the terminal recess 20 extends downward from the side opening of the terminal recess 20. , Housing 2 is characterized in that the protrusions 23 of the pair of sandwiching the lower end of the isolation strip 42 from both sides thereof is protruded to the side of the housing 2. With this configuration, when a force is applied to the separating piece 42 in the lateral direction, it is possible to prevent the separating piece 42 from being bent in the direction of the force, and more reliably prevent a human finger from entering between the separating pieces 42. I can expect that.

  In addition, each of the pair of protrusions 23 protrudes as a long protrusion in the vertical direction. Thereby, it can be expected that a force is applied between the lower end portion of the separating piece 42 and the housing 2 to prevent the intrusion of a human finger more reliably.

  Further, the separator 42 has a substantially H-shaped cross section, and is formed so that both side openings of the H shape face the inside and outside of the housing 2. This shape can be expected to strengthen the separators 42. When a force is applied to the separators 42 in the lateral direction, the separators 42 can be prevented from bending in the direction of the force. Can be expected to prevent the intrusion of human fingers from.

  Of the plurality of protrusions 23, the outermost protrusion 23 includes a guide protrusion 23 a that extends upward at the upper end portion and in which the lower end of the isolation piece 42 is slidably contacted in the vertical direction. Thereby, the terminal cover 4 can be positioned in the terminal recess 20 of the housing 2 from above, and further, the position of the terminal cover 4 can be specified and positioned.

2 Housing 20 Recess for terminal 21 Bulkhead 23 Projection 23a Guide projection 24 Terminal 4 Terminal cover 40 Main piece 42 Separating piece

Claims (4)

A rectangular box shape surrounded by a top surface, a bottom surface, and four side surfaces, and a housing in which a control circuit is accommodated,
A terminal recess that opens upward and laterally across the top surface and the side surface of the housing and is partitioned into a plurality of partitions by a partition in a direction along a boundary angle portion between the top surface and the side surface. When,
A plurality of terminal portions that are electrically connected to the control circuit and are exposed from the housing on the inner bottom surfaces of the terminal recesses;
A main piece attached to the housing so as to cover the upper opening of the terminal recess, and is extended from the side edge of the main piece, and protrudes at a predetermined interval along the longitudinal direction of the main piece. A terminal cover having a separating piece,
An electrical device comprising:
The isolation piece extends downward from a side opening of the terminal recess along a part of the casing located in parallel with the partition wall and the isolation,
The housing is an electric device characterized in that a pair of projecting portions that sandwich the lower end of the isolation piece from both sides thereof are projected from the side surface of the housing.   The electric device according to claim 1, wherein each of the pair of protrusions protrudes as a long ridge in the vertical direction. The separator has a substantially H-shaped cross section,
The electrical apparatus according to claim 1 or 2, wherein the H-shaped opening on both sides is formed so as to face inward and outward of the casing.   The projecting portion located on the outermost side among the plurality of projecting portions includes a guide projecting portion that extends upward at the upper end portion, and the lower end of the separating piece is slidably contacted in the vertical direction. The electric device according to claim 2 or 3, characterized in that

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