Attachment device of electric apparatus

Abstract

To provide an attachment device of an electric apparatus, capable of more smoothing an attachment operation to an attached surface.SOLUTION: An attachment device of an electric apparatus for attaching an electric apparatus to an attached surface, comprises: an attachment member that is fixed to the attached surface; a hooking part that swingably and detachably hooks the electric apparatus to the attached surface so as to be swingable; a first engagement part that is provided to a position that is lower from the hooking part in the attachment member, and can be advanced to between a projection state and a housing state to the electric apparatus to be hooked; a second engagement part that is provided to the electric apparatus, and can be contacted to a direction of a swinging to the first engagement part to be advanced to a direction of the electric apparatus; and a wiring leading-in part that is provided to the attachment member, and is for leading a wire to be connected to the electric apparatus. In a state where the first and second engagement parts in the projection state are contacted, a gap for the wiring leading-in operation can be formed to between the attachment member and the electric apparatus.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an attachment device for an electrical device for attaching an electrical device to a wall surface.

Background Art

[0002] Conventionally, as an attachment device for an electrical device such as a power conditioner, which is a device for converting direct current generated by, for example, a solar power generation system into alternating current that can be used in a household, there is, for example, the one shown in FIG. 15. In this attachment device, as a wall-mounted structure for attaching the power conditioner 10 to the wall-mounted bracket 2 fixed to the outer wall of the house with screws or the like, upper and lower two-stage hooks provided on the back surface of the power conditioner are simultaneously fitted into upper and lower two-stage hook receivers 3 and 4 provided on the wall-mounted bracket 2 (see Patent Document 1).

[0003] However, in the configuration of Patent Document 1, when attaching the upper and lower two-stage hooks of the power conditioner 10 to the upper and lower two-stage hook receivers 3 and 4 of the wall-mounted bracket 2, it is necessary to simultaneously draw the wiring 5 coming out of the wiring lead-in portion of the wall-mounted bracket 2 into the wiring lead-in portion on the back surface of the power conditioner. That is, at least two workers are required. One worker holds the power conditioner, and the other worker performs the wiring lead-in work, so there is a difficulty in workability.

[0004] In particular, since the power conditioner 10 is a heavy object weighing several tens of kg, it is necessary for the worker to continuously hold the heavy object during the wiring lead-in work, and measures such as preparing a separate temporary placement stand are required.

[0005] As a method for solving such problems, as shown in FIGS. 16 and 17, the upper hook 180 of the power conditioner 100 is hooked on the upper hook receiver 31 of the wall - mounting fitting 22 to swingably support the power conditioner 100. In this state, by sandwiching the jig 60 between the wall - mounting fitting 22 and the power conditioner 100, it is possible to prevent the wall - mounting fitting 22 and the power conditioner 100 from being in a fitted state, and to form and maintain a gap for wiring drawing work between the wall - mounting fitting 22 and the power conditioner 100 (see Patent Document 2).

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, when using the detachable jig 60, it is necessary to store and keep the jig 60, for example, at a predetermined position inside the power conditioner 10. If there is a case of forgetting to store it, there is a problem that the work will be delayed when wiring work is required, such as during maintenance of the power conditioner 100.

[0008] Regarding this point, in electrical equipment such as a power conditioner, even after it is once installed, it may be temporarily removed due to maintenance or the like, or other wiring work may be required. Each time, it is necessary to use the jig 60. If the jig 60 is lost, it has been difficult to perform the work smoothly.

[0009] In addition, when using the detachable jig 60, there is also a problem that the number of work steps for attaching and detaching it increases.

[0010] The present invention has been made in consideration of the above points, and an object thereof is to provide a mounting device for an electric device that can further smoothly perform the mounting operation on the mounting surface.

Means for Solving the Problems

[0011] The mounting device for an electric device of the present invention is a mounting device for an electric device for mounting an electric device on a mounting surface, including a mounting member fixed to the mounting surface, an engaging portion that swingably and detachably engages the electric device with respect to the mounting member, a first engaging portion provided at a position below the engaging portion in the mounting member and capable of advancing and retracting between a protruding state and a retracted state with respect to the engaged electric device, a second engaging portion provided on the electric device and capable of abutting against the first engaging portion protruding in the direction of the electric device in the swinging direction, and a wiring drawing-in portion provided on the mounting member for drawing in wiring connected to the electric device. In a state where the first engaging portion in the protruding state abuts against the second engaging portion, a gap for wiring drawing-in work can be formed between the mounting member and the electric device.

[0012] According to this configuration, by using the first engaging portion provided on the mounting member and the second engaging portion provided on the electric device to form a gap for wiring drawing-in work between the mounting member and the electric device, the wiring drawing-in work can be smoothly performed. Moreover, since the first engaging portion can advance and retract between the protruding state and the retracted state and abuts against the second engaging portion in the protruding state to form a gap for work, there is no need for a separate jig and the attachment / detachment work of the jig. Therefore, the mounting work on the mounting wall surface can be further smoothed.

[0013] In addition, the mounting device for an electric device of the present invention, in the above configuration, the first engaging portion includes a support portion pivotally supported on the mounting member so as to be rotatable, and is characterized in that it can advance and retract between the protruding state and the retracted state in accordance with the rotation.

[0014] According to this configuration, the first engaging portion can be advanced and retracted between the protruding state and the retracted state by a rotational operation.

[0015] Moreover, in the mounting device for an electric device of the present invention, in the above configuration, the support portion supports the first engaging portion so as to be rotatable in the horizontal direction, and the first engaging portion includes a positioning portion that is positioned and fixed to the mounting member in the protruding state.

[0016] According to this configuration, it is possible to maintain a gap for wiring drawing work.

[0017] Moreover, in the mounting device for an electric device of the present invention, in the above configuration, the support portion supports the first engaging portion so as to be rotatable in the vertical direction, and the first engaging portion is positioned by its own weight in the protruding state.

[0018] According to this configuration, it is possible to maintain a gap for wiring drawing work without requiring a special mechanism or operation.

Effect of the Invention

[0019] According to the present invention, the mounting work of the electric device on the mounting surface can be made smoother.

Brief Description of the Drawings

[0020]

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Mode for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings. As shown in FIG. 1, the mounting device of the power conditioner (electrical equipment) 300 according to the present embodiment fixes the power conditioner 300 to the wall surface 50 by mounting the power conditioner 300 on the wall mounting bracket (mounting member) 200 fixed to the wall surface (mounting surface) 50 in advance.

[0022] As shown in FIGS. 2 and 3, the wall-mounted fitting 200 has a plate-shaped mounting plate 201a having a rectangular shape that is fixed to the wall surface 50 with screws or the like, and a frame portion (right frame portion 201b, left frame portion 201c, and lower frame portion 201d) that protrudes from the front side of the mounting plate 201. Pins 202 and 203 for engaging with slit members 310 and 311 (FIG. 4) provided on the left and right sides of the back surface of the power conditioner 300 are provided on the right frame portion 201b and the left frame portion 201c. A fitting portion is constituted by the slit members 310 and 311 and the pins 202 and 203.

[0023] Specifically, as shown in FIG. 5, the slit member 310 has a recess 315 that engages with the pin 202. Inclined portions 313 and 314 are formed in the path for guiding the pin 202 to the recess 315, and the pin 202 can be guided to the recess 315 while being guided by the inclined portions 313 and 314. When the pin 202 is guided to the recess 315, the recess 315 and the pin 202 are engaged with each other due to the weight of the power conditioner 300, and thereby the slit member 310 is hooked on the pin 202.

[0024] Similarly, the slit member 311 (FIG. 4) has a recess 316 that engages with the pin 203. Inclined portions 313 and 314 are formed in the path for inserting the pin 203 into the recess 316, and the pin 203 can be guided to the recess 316 while being guided by the inclined portions 313 and 314.

[0025] By hooking the slit members 310 and 311 on the pins 202 and 203, the power conditioner 300 is suspended in a swingable state.

[0026] The slit members 310 and 311 have the same shape and can be attached to either the left or right side of the power conditioner 300 main body by being turned upside down. That is, the concave portions 315 and 316 of the slit members 310 and 311 have cutout holes vertically, but only the upper cutout holes engage with the pins 202 and 203. When the slit members 310 and 311 are attached to the opposite left and right sides of the power conditioner 300 main body, the lower cutout holes will be located on the upper side, and the members can be shared. In this way, the pins 202 and 203, together with the slit members 310 and 311, constitute a means for detachably and swingably engaging the power conditioner 300.

[0027] By providing slit members 310 and 311 (Fig. 4) on the left and right sides of the power conditioner 300 and configuring them to engage with the pin 202 and the pin 203 provided on the right frame portion 201b and the left frame portion 201c of the wall mounting bracket 200, in the operation of hooking the power conditioner 300 onto the wall mounting bracket 200, the engagement state between the pins 202, 203 and the slit members 310, 311 can be easily visually confirmed from the left and right, and the operation can be made easier.

[0028] The lower frame portion 201d of the wall mounting bracket 200 is provided with screw holes 232 (Figs. 2 and 3) for fixing the lower surface 351 of the power conditioner 100 to the wall mounting bracket 200 when the power conditioner 100 is attached.

[0029] A wiring inlet hole (wiring inlet portion) 204 for drawing in wiring from the outside is provided at the lower part of the mounting plate 201a. Through this wiring inlet hole 204, wiring can be drawn from the back side to the front side (the mounting surface on the side where the power conditioner 300 is attached) of the mounting plate 201a. The wiring drawn to the front side is connected to a wiring connection portion (not shown) provided inside the power conditioner 300.

[0030] In this way, by providing the wiring inlet hole 204 in the mounting plate 201a, for example, the wiring directly drawn from the wall surface 50 can be connected to the power conditioner 300 via the mounting plate 201a provided at the wiring outlet portion of the wall surface 50.

[0031] A stopper (first engaging portion) 220 is provided on the lower frame portion 201d of the wall - hanging fitting 200. The stopper 220 has a rod - like shape as a whole, and one end portion 221 in the longitudinal direction is rotatably supported by a rotation shaft 227 (FIG. 6). Thus, as shown in FIGS. 6, 7, and 8, the tip portion 222 is horizontally rotatable (retractable) between a stored state (FIG. 6(a)) in which it is drawn into the inside of the lower frame portion 201d of the wall - hanging fitting 200 and a protruding state (FIG. 8(b)) in which it protrudes from the lower frame portion 201d. In this embodiment, it is horizontally rotatable, but it may be substantially horizontal.

[0032] The stopper 220 is made of, for example, polycarbonate (PC) or a mixture of polycarbonate and polybutylene terephthalate (PC + PBT). As shown in FIGS. 9 and 10, it has a box - shaped configuration with a U - shaped cross - section, and has rigidity by increasing the second moment of cross - section. Further, the stopper 220 has a configuration that is inclined upward from one end portion 221 to the tip portion 222, and the tip surface 222a of the tip portion 222 is configured (inclined) at an angle with respect to the vertical direction.

[0033] The stopper 220 rotatably supported by the rotation shaft 227 is displaceable in the vertical direction along the rotation shaft 227. In the stored state shown in FIG. 6(a), the stopper 220 has fallen downward due to its own weight. In this state, the rotation of the stopper 220 in the horizontal direction is restricted by the bent portion 205 of the lower frame portion 201d. That is, the stopper 220 maintains the stored state (FIG. 6(a)).

[0034] From this state, as shown in FIG. 6(b), by lifting the stopper 220 upward (in the direction of arrow A), the stopper 220 is released from the restriction by the bending portion 205, and from the storage state shown by the two-dot chain line in FIG. 7, as shown by the solid line, with the rotation axis 227 as the rotation center, the tip portion 222 can be rotated to a protruding state in which it protrudes from the lower frame portion 201d.

[0035] Slits 225a and 225b are formed on the side surfaces 220a and 220b of the stopper 220 (FIGS. 9 and 10). When the stopper 220 is in the protruding state where it protrudes from the lower frame portion 201d of the wall mounting fitting 200 (FIG. 8(a)), the bending portion 205 of the lower frame portion 201d can be inserted into the slits 225a and 225b. Thus, by lowering the stopper 220 downward (in the direction of arrow B), the bending portion 205 of the lower frame portion 201d is inserted into the slits 225a and 225b, and the rotation position of the stopper 220 can be held. That is, the stopper 220 can be held at the use position shown in FIG. 8(b) (a position where wiring drawing-in work is possible).

[0036] In this protruding state, the front end surface 222a of the stopper 220 can come into contact with a contact portion (second engaging portion) 320 provided at the lower part of the power conditioner 300 (FIG. 9). As a result, as shown in FIG. 11, the power conditioner 300, in which the slit members 310 and 311 are engaged with the pins 202 and 203 of the wall mounting fitting 200 and is swingably suspended, is maintained in a temporarily held state in which a working space is secured in its lower part by the stopper 220 and the contact portion 320 in contact therewith.

[0037] Next, a specific method of attaching the power conditioner 300 to the wall mounting fitting 200 will be described.

[0038] As a process of attaching the power conditioner 300 to the wall mounting fitting 200, the stopper 220 of the wall mounting fitting 200 is pulled out from the storage state (FIG. 6(a)) to the protruding state (FIG. 8(b)).

[0039] As shown in Fig. 4, the slit members 310 and 311 of the power conditioner 300 are hooked on the pins 202 and 203 of the wall-mounted fitting 200, enabling the power conditioner 300 to swing.

[0040] Thereby, the power conditioner 300 is supported by the wall-mounted fitting 200 via the pins 202 and 203.

[0041] In this state, by bringing the contact portion 320 of the power conditioner 300 into contact with the tip surface 222a of the stopper 220, the power conditioner 300 is supported in an inclined state (temporary holding state) with a gap left between it and the wall-mounted fitting 200 by the length of the stopper 220.

[0042] When the power conditioner 300 is held in an inclined state with respect to the wall-mounted fitting 200, a gap large enough for an operator's hand to fit is maintained between the wiring insertion hole 204 of the wall-mounted fitting 200 and the power conditioner 300. At this time, the wiring drawn in from the wiring insertion hole 204 of the wall-mounted fitting 200 is drawn into and connected to a wiring connection portion (not shown) inside the power conditioner 300.

[0043] After the work of drawing in and connecting the wiring inside the power conditioner is completed, the operator slightly lifts the power conditioner 300 supported by the wall-mounted fitting 200 (swings it around the swing axis) and rotates the stopper 220 to the storage position (Fig. 6). Thereby, the stopper 220 is not interposed between the power conditioner 300 and the wall-mounted fitting 200. In this state, the power conditioner 300 is swung in the direction of the wall-mounted fitting 200 by its own weight, and the power conditioner 300 is screwed to the wall-mounted fitting 200 through the screw hole 232 formed in the bent portion 205 of the wall-mounted fitting 200.

[0044] Thus, in the mounting device of the power conditioner 300 according to the present embodiment, by hooking the slit members 310 and 311 of the power conditioner 300 on the pins 202 and 203 of the wall - mounting bracket 200, the power conditioner 300 is supported in a swing - able state. In this state, in the process of attaching the power conditioner 300 to the wall - mounting bracket 200 while swinging the power conditioner 300, by interposing the stopper 220 during this process, a state in which a gap for wiring drawing work is formed between the wall - mounting bracket 200 and the power conditioner 300 can be formed.

[0045] Thereby, the operator can easily perform the wiring drawing work without supporting the power conditioner 300. Then, when the wiring drawing work is completed, the stopper 220 is rotated to the retracted position (storage position), and the power conditioner 300 is allowed to swing in the direction of the wall - mounting bracket 200 by leaving it to its own weight, so that the power conditioner 300 can be attached to the wall - mounting bracket 200.

[0046] Thus, in the series of steps of swinging the power conditioner 300 in a state where it is suspended swing - ably by the slit members 310 and 311 and then attaching it to the wall - mounting bracket 200, the stopper 220 is used to hold the power conditioner 300 in a state of being obliquely suspended during the process, and wiring drawing work is performed in this state. As a result, the operator does not need to hold the power conditioner 300 during the wiring drawing work or perform complicated work such as preparing a separate temporary mounting base, and the wiring drawing work can be easily performed.

[0047] Further, the stopper 220 can be displaced between a retracted state in which it is retracted into the wall-mounted fitting 200 by being rotated by the rotation shaft 227 and a protruding state in which it protrudes from the wall-mounted fitting 200 toward the power conditioner 300. In the retracted state, it can be held within the wall-mounted fitting 200. Thereby, compared with the case of using a jig separate from the wall-mounted fitting 200, it is possible to prevent the problem of the stopper 220 being lost.

[0048] Thereby, during maintenance after the power conditioner 300 is attached to the wall-mounted fitting 200, when detaching and attaching the power conditioner 300, it is possible to prevent the stopper 220 from being lost and to perform a smooth detachment and attachment operation.

[0049] In the above-described embodiment, the case of using the stopper 220 rotatably supported in the horizontal direction with respect to the lower frame portion 201d of the wall-mounted fitting 200 has been described. However, the present invention is not limited thereto. For example, as shown in FIGS. 12 and 13, a stopper 420 rotatably supported in the vertical direction with respect to the lower frame portion 201d may be used.

[0050] Specifically, the stopper 420 is rotatably supported in the vertical direction via a rotation shaft 427 by a support portion 410 provided on the lower frame portion 201d. The stopper 420 is formed of a metal material having higher rigidity than resin. The support portion 410 is provided with a locking portion 412 for holding the stopper 420 in the retracted state. In the retracted state shown in FIG. 14(a), the side surface portion 420a of the stopper 420 is supported in a state of being in contact with the locking portion 412 by the weight of the stopper 420.

[0051] On the other hand, as shown in FIG. 14(b), in the protruding state in which the stopper 420 protrudes from the wall-mounted fitting 200, the side surface portion 420b of the stopper 420 contacts the receiving portion 428 of the lower frame portion 201d of the wall-mounted fitting 200 by the weight of the stopper 420, whereby the tip portion 422 of the stopper 420 holds the protruding state of protruding in the direction of the power conditioner 300.

[0052] Thus, in the configuration that rotates in the vertical direction, since the self-weight of the stopper 420 can be utilized to maintain the stopper 420 in the protruding state, compared with the stopper 220 that rotates in the horizontal direction shown in FIG. 7, there is no need to provide a locking mechanism (the slit 225a of the stopper 222) for maintaining the protruding state. Note that the rotation direction of the stopper 420 may be substantially the vertical direction.

[0053] In addition, in the above-described embodiment, the case where the present invention is applied to the mounting device for mounting the power conditioner 300 to the wall surface 50 has been described. However, the present invention is not limited thereto, and can be widely applied to mounting devices for mounting various other electric devices to the mounting surface.

Explanation of Reference Numerals

[0054] 200 Wall mounting bracket 201 Mounting plate 202, 203 Pins 204 Wiring inlet hole 205 Bent portion 220, 420 Stoppers 222, 422 Tip portions 225a, 225b Slits 300 Power conditioner 310, 311 Slit members 315, 316 Recesses 412 Locking portion 428 Receiving portion

Claims

1. An attachment device for an electrical device for attaching the electrical device to a mounting surface, comprising: a mounting member fixed to the mounting surface; an engaging portion that swingably and detachably engages the electrical device with respect to the mounting member; a first engaging portion provided at a position below the engaging portion in the mounting member and capable of advancing and retracting between a protruding state and a retracted state with respect to the engaged electrical device; a second engaging portion provided on the electrical device and capable of abutting in the swinging direction against the first engaging portion protruding in the direction of the electrical device; a wiring inlet portion provided on the mounting member for drawing in wiring connected to the electrical device; and in a state where the first engaging portion in the protruding state abuts against the second engaging portion, a gap for wiring inlet work can be formed between the mounting member and the electrical device characterizing the attachment device for an electrical device.

2. The first engaging portion comprises a support portion pivotally supported on the mounting member so as to be rotatable, and is characterized in that it can advance and retract between the protruding state and the retracted state in accordance with the rotation, according to the attachment device for an electrical device described in Claim 1.

3. The support portion horizontally rotatably supports the first engaging portion, and the first engaging portion comprises a positioning portion positioned and fixed to the mounting member in the protruding state characterizing the attachment device for an electrical device described in Claim 2.

4. The support portion vertically rotatably supports the first engaging portion, and the first engaging portion is positioned by its own weight in the protruding state characterizing the attachment device for an electrical device described in Claim 2.

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