JP2015035479A - Electric device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric device having a power cord that is not easily damaged in a housing.SOLUTION: An electric device includes: a housing 10; and a terminal base 20 in which a housing groove for housing a part of a power source terminal erected from a rear surface of the housing 10 is formed, the terminal base 20 assembled to an opening part formed in the housing 10; and a circuit board on which electronic components are mounted. The power source terminal is inserted into an insertion port of an electrical outlet on a wall surface thereby arranging the electric device on the wall surface. A rib 40, which allows a power cord 23 connected with the terminal base 20 to be inserted into a space S between the rear surface side of the housing 10 and the circuit board and is erected from the rear surface side of the housing 10 toward the circuit board to guide the power cord 23.

Description

  The present invention relates to an electric device in which power supply terminals are integrally formed.

  Conventionally, in electrical equipment, a power supply terminal erected from the back of the housing, a terminal base formed in an opening formed in the housing, in which a housing groove for housing a part of the power supply terminal is formed, And a circuit board provided with electronic components are known. The electric device is arranged on the wall surface by inserting the power supply terminal into an outlet of a wall socket.

  Such an electrical device has an excellent aesthetic appearance because the power cord drawn out from the casing is not exposed on the wall surface.

  In addition, since the above-mentioned electrical equipment which is a prior art in the present invention is a general technique, prior art documents such as patent documents are not shown.

  In the electrical equipment described above, the power cord connected to the terminal base is disposed on the periphery of the circuit board inside the housing. At this time, the power cord may come into contact with the electronic component disposed on the circuit board, and the power cord may be damaged.

  Accordingly, an object of the present invention is to provide an electrical device in which a power cord is not easily damaged inside a casing.

  In order to achieve the above object, an electrical device according to the present invention includes a housing and a housing groove that houses a part of a power supply terminal erected from the back surface of the housing, and an opening formed in the housing. An electric device provided on the wall surface by inserting the power supply terminal into an outlet of a wall outlet. The first characteristic configuration is that a power cord connected to the terminal base is inserted into a space between the back side of the casing and the circuit board, and the circuit board is connected to the circuit board from the back side of the casing. It is in the point which provided the rib which stood and faced the said power cord.

  According to this configuration, the rib is provided so as to guide the power cord that passes through the space between the back side of the housing and the circuit board. The space is formed on the back side of the circuit board, and a part of the electronic device disposed on the circuit board protrudes from the back side of the circuit board. At this time, if the rib is disposed so as to avoid the electronic component disposed on the circuit board, the power cord and the electronic component come into contact with each other when the power cord is inserted through the space along the rib. It becomes difficult. Therefore, if the insertion portion of the power cord and the standing manner of the rib are made as in the present configuration, the power cord is less likely to come into contact with the electronic component and be damaged.

  A second characteristic configuration of the electric device according to the present invention is that the rib supports the circuit board.

  According to this configuration, the rib can support the circuit board by being erected so as to come into contact with the circuit board from the back side of the housing. Thereby, in the state which positioned the circuit board with the rib, the space which a power cord penetrates can be ensured reliably.

  According to a third characteristic configuration of the electric device according to the present invention, the rib includes a first rib formed so as to guide the power cord downward in an installation posture of the electric device, and a corner portion of the electric device. And a second rib formed to guide the power cord.

  According to this configuration, the power cord is guided to the vicinity of the side surface along the first rib, bent toward the corner near the side surface, and guided to the vicinity of the corner along the second rib. As described above, in this configuration, when assembling an electric device, the power cord can be disposed inside the housing simply by placing the power cord along the first rib and the second rib, thereby reducing labor during assembly. Can be made.

  A fourth characteristic configuration of the electrical apparatus according to the present invention is that a storage portion for storing the power cord is provided on the opposite side of the direction in which the second rib extends to the corner portion.

  According to this configuration, for example, when the power cord is disposed inside the housing, if a part of the power cord is housed in the housing portion, the power cord housing in the housing portion can be used as a play portion. The arrangement | positioning state in the inside of a body can be adjusted.

It is a perspective view which shows the outline | summary of the electric equipment of this invention. It is a disassembled perspective view of an electric equipment. It is the schematic of the top view of the electric equipment which removed the substrate circuit. It is the schematic of the top view of the electric equipment with which the board | substrate circuit was mounted | worn. It is principal part sectional drawing of the electric equipment arrange | positioned on the wall surface. It is principal part sectional drawing which showed a mode that a power supply cord penetrated space.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The electric device of the present invention is an electric device in which power supply terminals are integrally formed.
As shown in FIGS. 1 to 6, the electric device X of the present invention is formed with a housing 10 and a housing groove 22 for housing a part of a power terminal 21 erected from the back surface of the housing 10. 10 is provided with a terminal base 20 incorporated in an opening 11 formed in 10 and a circuit board 12 on which electronic components are arranged, and a power terminal 21 is inserted into an insertion port 31 of an outlet 30 on a wall surface Y. Is disposed on the wall surface Y.
In the electric device X, the power cord 23 connected to the terminal base 20 is inserted into the space S between the back side of the housing 10 and the circuit board 12, and the circuit board 12 is directed from the back side of the housing 10 to the circuit board 12. And a rib 40 for guiding the power cord 23 is provided.

  The electric device X may be any device as long as the power terminal is integrally formed and installed on the wall surface. As an electric equipment installed in the said wall surface, the alarm device for disaster prevention or crime prevention is mentioned, for example. This embodiment demonstrates the aspect which installs the gas alarm which detects the leak of combustible gas (LP gas) as the electric equipment X on the indoor wall surface. The shape of the electric device X is not particularly limited, but in the present embodiment, a rectangular shape in a top view and a thick plate shape (for example, 80 × 62 × 35 mm) is exemplified.

The housing 10 is formed of a device main body 10a and a sealing body 10b that covers the device main body 10a. A circuit board 12 is accommodated in the device body 10.
Electronic components such as a gas detection unit 13 and a notification unit 14 are disposed on the circuit board 12. Further, one end of the power cord 23 is connected to the connection portion 12 a of the circuit board 12. The other end of the power cord 23 is connected to the terminal base 20. The circuit board 12 of the present embodiment has a notch 12b in order to dispose the power cord 23 across the front and back of the circuit board 12. The power cord 23 guided along the side surface 18 of the housing 10 is bent along a corner rib 45 formed in the vicinity of the corner portion 19 of the housing 10 from the back side of the circuit substrate 12, so that the front side of the circuit board 12. Be guided to.

  The gas detector 13 may be of any form as long as it detects a combustible gas (LP gas) that is a gas to be detected. For example, a known semiconductor sensor element or a contact combustion sensor element may be used. The provided one can be used.

  The notification unit 14 may be in any form as long as it receives a signal from the gas detection unit and issues an alarm. For example, the notification unit 14 emits sound such as a piezoelectric speaker, or emits light such as an LED. Etc. can be used.

  The sealing body 10b is formed with a switch portion 15 for turning on the electric device X, a sound emitting portion 16 for emitting an alarm sound from the notification portion 14, and the like.

  In the present embodiment, a case where a pair of power supply terminals 21 facing each other is erected on the terminal base 20 will be described, but the present invention is not limited to such a mode. One end of the power supply terminal 21 is engaged with the receiving groove 22 formed in the terminal base 20 by, for example, integral molding, and the other end is exposed. The exposed other end of the power terminal 21 is inserted into the insertion port 31 of the wall socket Y on the wall surface Y.

  The terminal base 20 is incorporated in the opening 11 formed in the housing 10. In the present embodiment, the case where the opening 11 is provided so as to be positioned at the center in the width direction and at the upper side in the vertical direction in the apparatus main body 10a will be described. However, the present invention is not limited to such an embodiment. Absent.

  In the electric device X of the present invention, the power cord 23 connected to the terminal base 20 is inserted into the space S between the back side of the housing 10 and the circuit board 12, and the circuit board 12 is connected from the back side of the housing 10. Ribs 40 are provided so as to stand toward the power source and guide the power cord 23.

  In this configuration, the rib 40 is provided so as to guide the power cord 23 that passes through the space S between the back side of the housing 10 and the circuit board 12. The space S is formed on the back side of the circuit board 12, and a part of the electronic component 50 disposed on the circuit board 12 protrudes from the back side of the circuit board 12. At this time, if the rib 40 is disposed so as to avoid the electronic component 50 disposed on the circuit board 12, the power cord 23 is inserted when the power cord 23 is inserted through the space S along the rib 40. And the electronic component 50 are difficult to contact. Therefore, if the insertion part of the power cord 23 and the standing manner of the rib 40 are as in this configuration, the power cord is less likely to come into contact with the electronic component 50 and be damaged.

  The rib 40 may be configured to support the circuit board 12. That is, the rib 40 can support the circuit board 12 by standing from the back side of the housing 10 so that at least a part thereof is in contact with the circuit board 12. As a result, the space S into which the power cord 23 is inserted can be reliably ensured with the rib 40 positioning the circuit board 12.

  The rib 40 has a first rib 41 formed so as to guide the power cord 23 downward in the installation posture of the electric device X, and a first rib 41 formed so as to guide the power cord to the corner portion 18 of the electric device X. 2 ribs 42.

  In the present embodiment, the first rib 41 is formed so as to extend in the vertical direction in the installation posture of the electric device X and to the vicinity of the lower side surface 18 in the installation posture of the electric device X. Although the case where the rib 42 is formed so as to extend to the vicinity of the corner 19 of the electric device X in a state where it is connected to the end of the first rib 41 will be described, it is not limited to such a mode. The second rib 42 is connected to a substantially L-shaped third rib 43 formed in the vicinity of the corner 19 so as to correspond to the shape of the notch 12 b of the circuit board 12.

  The power cord 23 has one end connected to the connection portion 12 a of the circuit board 12 and the other end connected to the terminal base 20. Since the terminal base 20 in the present embodiment is located at the center in the width direction of the device body 10a, the power cord 23 is guided from the vicinity of the center in the width direction to the vicinity of the side surface 18 along the first rib 41 in the device body 10a. Is done. Further, the power cord 23 is bent toward the corner 19 in the vicinity of the side surface 18 and guided to the vicinity of the corner 19 along the second rib 42.

  As described above, in this configuration, when assembling the electric device X, the power cord 23 can be disposed inside the housing 10 only by placing the power cord 23 along the first rib 41 and the second rib 42. Labor during assembly can be reduced. Further, if the power cord 23 is placed along the first rib 41 and the second rib 42, the power cord 23 is inserted into the space S between the back side of the housing 10 and the circuit board 12 so as not to bend as much as possible. Can do. Therefore, damage due to bending of the power cord 23 can be suppressed.

  In addition, a storage portion 44 that stores the power cord 23 may be provided on the opposite side of the direction in which the second rib 42 extends to the corner portion 19.

  With this configuration, for example, when the power cord 23 is disposed inside the housing 10, if a part of the power cord 23 is accommodated in the accommodating portion 44, the arrangement state of the power cord 23 can be changed. Can be adjusted.

  The present invention includes a housing and a terminal base that is formed with a housing groove for housing a part of a power supply terminal erected from the back surface of the housing and is incorporated in an opening formed in the housing. The power terminal can be used for an electric device disposed on the wall surface by inserting the power terminal into a wall outlet.

X Electrical equipment Y Wall surface S Space 10 Housing 11 Opening 12 Circuit board 20 Terminal base 21 Power supply terminal 22 Housing groove 23 Power cord 30 Outlet 31 Insertion port 40 Rib 41 First rib 42 Second rib 44 Housing

Claims (4)

A housing, a housing groove for housing a part of a power supply terminal erected from the back surface of the housing, and a terminal base incorporated in an opening formed in the housing and an electronic component are disposed. And an electric device disposed on the wall surface by inserting the power supply terminal into an outlet of the wall socket,
In the space between the back side of the housing and the circuit board, a power cord connected to the terminal base is inserted,
An electrical device provided with a rib standing from the back side of the housing toward the circuit board and guiding the power cord.   The electrical device according to claim 1, wherein the rib supports the circuit board.   The rib is a first rib formed to guide the power cord downward in the installation posture of the electric device, and a second rib formed to guide the power cord to the corner of the electric device. The electric device according to claim 1, comprising:   The electric device according to claim 3, wherein a storage portion that stores the power cord is provided on a side opposite to a direction in which the second rib extends to the corner portion.

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