JP2015021839A - Energy measurement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy measurement device capable of installing a body horizontally in every direction without requiring much labor and time for implantation of a screw onto an installation surface.SOLUTION: An energy measurement device has a rectangular parallelepiped shape, and includes screw receivers 9a, 9b, 9c to be hooked on a screw, on the side of a short side and on the side of a long side of the back face, to put it in detail, includes the screw receivers 9a, 9b, 9c on a vertical line of the gravity center when being installed on an installation surface horizontally and longitudinally, and on a vertical line of the gravity center when being installed on the installation surface horizontally and laterally.

Description

  The present invention relates to an energy measuring device having an improved screw receiver on the back surface.

  2. Description of the Related Art Conventionally, there is a device casing that can be installed on a mounting surface such as a wall surface by using a screw that can be installed vertically and horizontally (see, for example, Patent Document 1).

  The device housing described in Patent Document 1 has screw holders at the four corners, and is vertically oriented by hooking two upper and left screw holders onto two screws driven into the installation surface so as to be horizontal to each other. Install sideways.

Japanese Patent Laid-Open No. 9-42236

  However, since this type of conventional device casing needs to be driven in a position where the two screws are horizontal to install on the installation surface, it takes time and effort to drive the screws, If the driving position is shifted and the positions of the two screws are not horizontal, there is a problem that the housing cannot be installed horizontally.

  The present invention has been made to solve the above-described problems, and does not require time and effort to drive a screw into the installation surface, and can be installed horizontally and vertically and horizontally. The purpose is to provide.

  The energy measuring device according to the present invention has a rectangular parallelepiped shape, and includes a screw receiver for hanging on a screw on the short side and long side of the back, and the vertical center of gravity when installed on the installation surface horizontally and vertically. The screw receiver is provided on the line and on the vertical line of the center of gravity when installed on the installation surface horizontally and horizontally.

  According to the energy measuring device of the present invention, since the screw support (fulcrum) is formed on the vertical line of the center of gravity when installed on the installation surface horizontally and vertically or sideways, the screw is applied to the installation surface. It takes less time and effort, and can be installed horizontally and vertically on the installation surface.

It is a disassembled perspective view of the energy measuring device which concerns on embodiment of this invention. It is a rear view of the energy measuring device which concerns on embodiment of this invention. It is a front view at the time of installing the energy measuring device which concerns on embodiment of this invention on an installation surface vertically. It is a front view at the time of installing the energy measuring device which concerns on embodiment of this invention on an installation surface sideways. It is a front view which shows the 1st wiring pattern at the time of installing the energy measuring device which concerns on embodiment of this invention on an installation surface vertically. It is a front view which shows the 2nd wiring pattern at the time of installing the energy measuring device which concerns on embodiment of this invention on an installation surface vertically. It is a front view which shows the wiring pattern at the time of installing the energy measuring device which concerns on embodiment of this invention on an installation surface sideways.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one.
An energy measuring device (hereinafter sometimes referred to simply as “device”) is connected to a distribution board, gas meter, water meter, etc., measures various usages based on information obtained from them, and the results are wired or wireless. Is output to a monitor such as a PC.

Embodiment.
FIG. 1 is an exploded perspective view of an energy measuring device according to an embodiment of the present invention.
The energy measuring device according to the present embodiment has a rectangular parallelepiped shape (strictly not a rectangular parallelepiped), an electrical component box including a substrate 3, an electrical component lower cover 5, and an electrical component upper cover 2, and a bushing. 4, a front design panel 1, and a housing 6.

The substrate 3 is mounted with electronic components and has a function of measuring energy such as electricity and gas. The board 3 has a connector (not shown) and transmits information to be output to a monitor such as a power source for supplying power for driving, information for measuring power consumption from a distribution board, and a PC. A wired LAN or the like (hereinafter collectively referred to as a cable) is connected.
The electrical component box accommodates and protects the substrate 3 and includes an electrical component lower cover 5 and an electrical component upper cover 2. The electrical product lower cover 5 includes a resin lower cover 5a that holds the substrate 3 from the back surface and a sheet metal lower cover 5b that covers the resin lower cover 5a. The electrical product upper cover 2 covers the substrate 3 from the surface and covers the lid. Resin upper cover 2a and sheet metal upper cover 2b covering resin upper cover 2a.

The sheet metal upper cover 2b and the sheet metal lower cover 5b are made of metal, and they cover the resin upper resin cover 2a and the resin lower cover 5a so that the internal ignition does not leak to the outside or the external ignition does not enter the inside. I am doing so.
The bushing 4 is made of rubber, and covers the edges to protect the cables so that the cables connected to the connectors on the board 3 do not touch and damage the edges of the sheet metal lower cover 5b (or the sheet metal upper cover 2b). A hole (drawing port) through which a cable passes is formed, and is attached to a U-shaped U-shaped groove 5ba formed on one side surface (on the short side) of the sheet metal lower cover 5b to cover the edge. The bushing 4 also serves to protect the finger so that the operator's finger does not get injured by touching the edge of the sheet metal lower cover 5b (or the sheet metal upper cover 2b).

The front design panel 1 is made of resin, and is a detachable panel that is attached to the upper side of the electrical component box (sheet metal upper cover 2b) and constitutes the design of the front surface and the front side surface of the energy measuring device.
The housing 6 is made of resin, is attached to the lower side of the electrical component box (sheet metal lower cover 5b), constitutes the design of the back side and the back side surface of the energy measuring device, and has a screw receiver 9, The screw holder 9 is hung on a screw driven into an installation surface such as a wall surface, and the energy measuring device is installed on the installation surface.
The “cover whose design surface is made of resin” described in the claims corresponds to the front design panel 1 and the housing 6.

FIG. 2 is a rear view of the energy measuring device according to the embodiment of the present invention. (A) is the figure which showed the back space part 11 without the color, (b) is the figure which showed the back space part 11 with the color. 5B and 6B which will be described later, the back space portion 11 is also colored in the same manner as in FIG. 2B.
The housing 6 has a plurality of screw receptacles 9 (three in the present embodiment), and is opposite to the opening 13 formed for passing a cable connected to the connector on the short side of the housing 6 and the board 3. A screw receiver 9 a is formed on the side, and screw receivers 9 b and 9 c are formed on the two long sides of the housing 6. The screw receiver 9a is for vertical hanging, the screw receivers 9b and 9c are for horizontal mounting, the screw receiver 9 has a triangular shape (not necessarily strictly triangular) with a large opening at the bottom, and a screw diameter at the center. And a support portion 10 that is in contact with the screw when it is hung on the screw.

FIG. 3 is a front view when the energy measuring device according to the embodiment of the present invention is vertically installed on the installation surface. (A) is a figure before installing an energy measuring device on the installation surface vertically, and (b) is a diagram after installing the energy measuring device on the installation surface in the vertical direction.
When installing the energy measuring device vertically on the installation surface, as shown in FIG. 3A, first, one screw 8 is driven into the installation surface. Then, the screw 8 is aligned with the widely opened bottom of the screw receiver 9 a, shifted from there and aligned with the support portion 10 a, and hung on the screw 8. By doing so, as shown in FIG.3 (b), an energy measuring device can be installed in an installation surface vertically.

FIG. 4 is a front view when the energy measuring device according to the embodiment of the present invention is installed sideways on the installation surface. (A) is a figure before installing an energy measuring device on the installation surface sideways, (b) is a figure after installing an energy measuring device on the installation surface sideways.
When installing the energy measuring device sideways on the installation surface, as shown in FIG. 4A, first, one screw 8 is driven into the installation surface. Then, it is shifted from the opened bottom of the screw receiver 9 b and is fitted to the support portion 10 a and is hung on the screw 8. By doing so, as shown in FIG.4 (b), an energy measuring device can be installed in an installation surface sideways.
In the present embodiment, the screw receiver 9b is hung on the screw 8. However, even if the screw receiver 9c is hung on the screw 8, the energy measuring device can be installed sideways on the installation surface, depending on the position of the cable and the like. You can choose.

Thus, by forming both the screw receivers 9 for vertical and horizontal use, the energy measuring device can be installed on the installation surface in a vertical and horizontal manner. For this reason, it is possible to cope with a case where it can be installed only vertically or horizontally due to the installation space of the energy measuring device. In addition, when the installation space can be installed in both the vertical and horizontal directions, the opening 13 of the housing 6 is close to the connection source (such as a distribution board) of the cable connected to the connector of the board 3. Therefore, the cable routing can be reduced.
Further, the screw receiver 9 has a triangular shape with a large opening at the bottom, and a support portion 10 is formed at the center. Therefore, the screw 8 is first aligned with the bottom having a large opening, and the screw 8 is supported by shifting from there. Since it can be fitted to the portion 10, the screw receiver 9 is easily hung on the screw 8.

  In the present embodiment, the number of the screw receivers 9 is three, but is not limited thereto. Note that only the screw holder 9a is used for vertical hanging when the screw receiver is formed on the short side of the housing 6 and the opening 13 formed to pass the cable connected to the connector of the board 3. The cable is passed from the upper side (the opening portion 13) to the energy measuring device installed with the screw receiver hung on the screw 8. Then, for example, when frost or the like adheres to the cable or its surroundings, there is a possibility that water may hang down on the energy measuring device (inside) through the cable, so that such a situation is prevented.

  Further, the support portion 10a of the screw receiver 9a is formed so as to be on the vertical line of the center of gravity of the device when the energy measuring device is installed horizontally and vertically on the installation surface, and the support portions 10b of the screw receivers 9b and 9c, 10c is formed so as to be on the vertical line of the center of gravity of the apparatus when the energy measuring apparatus is installed horizontally and horizontally on the installation surface.

  By doing so, when the screw receiver 9 is hung on the screw 8 driven into the installation surface, the moment of force around the support portion 10 of the screw receiver 9 (in a state where the energy measuring device is horizontal and vertical or horizontal) ( In other words, since the sum of the moments of the left and right forces becomes zero, it can be kept stationary in that state. Therefore, as shown in FIG. 3 and FIG. 4, the energy measuring device can be installed horizontally and vertically and horizontally on the installation surface simply by driving a screw 8 into one place on the installation surface and hooking one screw receiver 9 on the screw 8. be able to.

  As shown in FIG. 2, the housing 6 has a back space portion 11 that is recessed toward the front surface side. The rear space portion 11 forms a space between the rear surface of the apparatus and the installation surface when the energy measuring device is installed on the installation surface, and the cable connected to the connector of the board 3 can be routed in the space. It was formed to do. Further, the side wall 12 is provided on the side surface of the housing 6, and a plurality of grooves 14 are formed inside the side wall 12.

Next, a method for connecting the cable to the connector of the board 3 will be described.
In addition, until the operation | work which connects a cable to the connector of the board | substrate 3 is performed by removing the electrical component upper cover 2 and the front design panel 1, and attaching them after completion | finish of operation | work, this description is abbreviate | omitted below.
When a hole can be drilled on the installation surface, when the energy measuring device is installed on the installation surface, a hole is formed at a position facing the opening 13, and a cable is drawn from there to open the opening 13 of the housing 6. Then, the sheet metal lower cover 5 b is connected to the connector of the substrate 3 through the hole of the bushing 4 attached to one side surface.

On the other hand, when it is impossible to make a hole in the installation surface, the cable cannot be directly passed through the opening 13 from the installation surface. Therefore, it is necessary to pass the cable from the connection source (distribution panel or the like) of the cable to the inside of the energy measuring device and then pass it through the opening 13. At that time, depending on the relationship between the cable connection source (distribution panel, etc.) and the energy measuring device, it may be necessary to route the cable on the installation surface, but there is not enough space to route the cable on the installation surface. There is. Further, when the cable is routed on the installation surface, a portion that is exposed to the outside becomes long, and therefore, the possibility of disconnection increases.
Therefore, in such a case, it is necessary to draw the cable into the device from either the top, bottom, left, or right of the energy measuring device, and then route the cable around the back of the device using the back space 11 and pass it through the opening 13. .

FIG. 5 is a front view showing a first wiring pattern when the energy measuring device according to the embodiment of the present invention is installed vertically on the installation surface. (A) is a front view of an energy measuring device, (b) is a rear view of an energy measuring device.
Due to the installation space, when the energy measuring device is installed vertically and the connection source (distribution panel, etc.) of the cable 7 is located below the energy measuring device, as shown in FIG. It is necessary to draw the cable 7 into the apparatus from the side. For this purpose, a space for drawing the cable 7 must be formed in a part of the housing 6.

  Therefore, a part of the lower side wall 12 of the housing 6 is cut off with a nipper or the like to form a notch 15. Since the side wall 12 of the housing 6 is made of resin, it can be cut off with a nipper or the like. Moreover, since the groove 14 is formed inside the side wall 12, it can be easily cut by cutting along the groove 14, and can be cut more beautifully, so that the design is not impaired. Since a plurality of grooves 14 are formed inside the side wall 12, any portion can be cut out along the grooves 14.

  Then, as shown in FIG. 5, the cable 7 is drawn into the back surface of the energy measuring device from the notch 15 formed in the lower side wall 12 of the casing 6, and the opening 13 of the casing 6 and the sheet metal lower cover 5b are drawn. Is connected to the connector of the substrate 3 through a hole of the bushing 4 attached to one side surface of the substrate 3.

FIG. 6 is a front view showing a second wiring pattern when the energy measuring device according to the embodiment of the present invention is installed vertically on the installation surface. (A) is a front view of an energy measuring device, (b) is a rear view of an energy measuring device.
For the convenience of installation space, when the energy measuring device is installed vertically and the connection source (distribution panel, etc.) of the cable 7 is located on the left side, as shown in FIG. It is necessary to draw the cable 7 into the apparatus.
Therefore, a part of the left side wall 12 of the housing 6 is cut off with a nipper or the like to form a cutout portion 15.
Then, as shown in FIG. 6, the cable 7 is drawn into the back surface of the energy measuring device from the cutout portion 15 formed in the left side wall 12 of the housing 6, and is routed by the back space portion 11. Then, the sheet metal lower cover 5b is connected to the connector of the substrate 3 through the hole of the bushing 4 attached to one side surface.

FIG. 7 is a front view showing a wiring pattern when the energy measuring device according to the embodiment of the present invention is installed sideways on the installation surface. (A) is a front view when the cable 7 is drawn into the apparatus from the left side of the energy measuring apparatus, and (b) is a front view when the cable 7 is drawn into the apparatus from the upper side of the energy measuring apparatus.
When the energy measuring device is installed on the installation surface in the horizontal direction, the cable 7 can be connected to the connector of the board 3 in the same manner as when the energy measurement device is installed on the installation surface in the vertical direction described above.

As described above, even when it is impossible to make a hole in the installation surface, by cutting a part of the side wall 12 of the housing 6 and forming the notch 15, the cable 7 can be energized from the notch 15. It can be pulled into the back of the measuring device, routed around the back space 11, and connected to the connector of the substrate 3 through the opening 13 of the housing 6 and the hole of the bushing 4 attached to one side of the sheet metal lower cover 5 b. it can.
In addition, since a plurality of grooves 14 are formed inside the side wall 12 of the housing 6, it is easy to cut any portion along the grooves 14, and can be cut out neatly. Without damaging it.

  If it is impossible to make a hole in the installation surface, a part of the cable 7 is formed by placing the cable 7 on the installation surface from the connection source (distribution panel, etc.) of the cable 7 to the energy measuring device Although it is exposed to the outside, it is preferable to cover the exposed portion of the cable 7 with a molding or the like in order to avoid disconnection.

  1 front design panel, 2 electrical product upper cover, 2a resin upper cover, 2b sheet metal upper cover, 3 substrate, 4 bushing, 5 electrical product lower cover, 5a resin lower cover, 5b sheet metal lower cover, 5ba (for sheet metal lower cover) U-shaped groove, 6 housing, 7 cable, 8 screw, 9 screw holder, 9a (for vertical hanging) screw receiver, 9b (for horizontal hanging) screw receiver, 9c (for horizontal hanging) screw receiver, 10 (for screw holder) ) Supporting part, 10a Supporting part (for the vertical hanging screw receiver), 10b Supporting part (for the horizontal hanging screw receiver), 10c Supporting part (for the horizontal hanging screw receiver), 11 Back space part, 12 Side wall, 13 Opening, 14 grooves, 15 notches.

Claims (4)

It has a rectangular parallelepiped shape, and is equipped with screw receptacles for hanging on screws on the short side and long side of the back,
An energy measuring device comprising the screw support on a vertical line of the center of gravity when installed on the installation surface horizontally and vertically and on a vertical line of the center of gravity when installed on the installation surface horizontally and horizontally. The screw receiver has a triangular shape;
The energy measuring device according to claim 1, wherein the bottom portion has a large opening, and a support portion that comes into contact with the screw when formed on the screw is formed at the center. The design surface is formed with a resin cover,
The energy measuring device according to claim 1, wherein a plurality of grooves are formed inside a side surface of the cover. The cover is
The energy measuring device according to claim 3, wherein at least a part of the side surface can be cut off.

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