Electrical equipment
The electrical device addresses accidental switch operation by positioning the operating device closer to the front and using a cover with specific openings, enhancing safety and compactness while improving work efficiency.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KAWAMURA ELECTRIC INC
- Filing Date
- 2024-12-04
- Publication Date
- 2026-06-16
AI Technical Summary
There is a risk of accidental operation of a switch due to proximity of an operating device, leading to potential contact with the switch portion protruding from the front surface.
The electrical device includes a housing with a cover portion that positions the first device (operating device) closer to the front than the second device (switch) and has distinct openings exposing their front surfaces, preventing accidental contact and ensuring the operating device is operated from the front.
This configuration prevents accidental operation of the switch and reduces the risk of wire breakage by minimizing bends in the connecting wire, allowing for a more compact design and improved workability during cover attachment and detachment.
Smart Images

Figure 2026096994000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to an electrical device.
Background Art
[0002] Conventionally, an electrical device such as a distribution board that houses a switch and an operating device connected to the switch inside is known. For example, Patent Document 1 discloses a wiring cover for a distribution board that houses a main switch corresponding to the switch and a branch switch corresponding to the operating device, and can accommodate the difference in height between the main switch and the branch switch.
Prior Art Documents
Patent Documents
[0003]
Patent Document l
Summary of the Invention
Problems to be Solved by the Invention
[0004] By the way, when an operator operates an operating device arranged next to the switch, there is a possibility that the operator may accidentally touch a switch portion protruding from the front surface of the switch.
Means for Solving the Problems
[0005] An electrical device according to one aspect of the present disclosure includes a housing that houses a first device and a second device inside, a cover portion attached to the front surface of the housing to protect the first device and the second device, the first device and the second device are arranged such that the front surface of the first device is located closer to the front side than the front surface of the second device in the depth direction of the housing, the cover portion is The first device has a first surface with a first opening formed therein, exposing at least a portion of its front surface, and the second surface has a second opening formed therein, exposing at least a portion of its front surface. In the depth direction, the first surface is located closer to the viewer than the second surface. [Effects of the Invention]
[0006] According to this disclosure, it is possible to prevent accidental operation. [Brief explanation of the drawing]
[0007] [Figure 1] Figure 1 is a perspective view showing the configuration of a distribution board according to an embodiment of this disclosure. [Figure 2] Figure 2 is a perspective view showing the internal configuration of the distribution board shown in Figure 1. [Figure 3] Figure 3 is a schematic diagram showing the positional relationship between the operating equipment and the switch in a distribution board according to a comparative example. [Figure 4] Figure 4 is a schematic diagram showing the positional relationship between the operating equipment and the switch in the distribution board shown in Figure 2. [Figure 5] Figure 5 is a perspective view illustrating the detailed configuration of the cover shown in Figure 2. [Figure 6] Figure 6 is a perspective view showing a modified example (part 1) of the cover shown in Figure 5. [Figure 7] Figure 7 is a perspective view showing a modified version (part 2) of the cover shown in Figure 5. [Figure 8] Figure 8 is a perspective view showing a modified version (part 3) of the cover shown in Figure 5. [Figure 9] Figure 9 is a perspective view showing a modified version (number 4) of the cover shown in Figure 5. [Figure 10] Figure 10 is a schematic diagram illustrating a modified version (number 5) of the cover shown in Figure 5. [Modes for carrying out the invention]
[0008] A distribution board 100, which is an example of an electrical device of this disclosure, will be described below with reference to the drawings. However, the present invention is not limited to these examples and is intended to include all modifications within the meaning and scope of the claims, as shown in the claims.
[0009] In the following explanation, the terms "front," "rear," "left," "right," "up," and "down" may be used, but these directions are relative directions established for the sake of explanation. Also, "left" and "right" in each diagram refer to the direction when viewed from the front of the distribution board 100. In the following explanation, the front-to-back direction will also be referred to as the "depth direction." Furthermore, the front side in the front-to-back direction will be referred to as the "front side," and the rear side in the front-to-back direction will be referred to as the "back side."
[0010] [Overall Structure Overview] Figure 1 is a perspective view showing the configuration of a distribution board 100 according to an embodiment of the present disclosure. As shown in Figure 1, the distribution board 100 comprises a housing 10 and a cover portion 11 attached to the front surface of the housing 10.
[0011] Figure 2 is a perspective view showing the internal configuration of the distribution board 100 shown in Figure 1. Figure 2 shows the distribution board 100 shown in Figure 1 tilted so that the back of the housing 10 is at the bottom of the page, viewed from the right side. In addition, in Figure 2, some parts of the housing 10 and the cover part 11 shown in Figure 1 are omitted in order to show the internal configuration of the distribution board 100.
[0012] As shown in Figure 2, the housing 10 contains a base portion 12 located on the rear side, an operating device (first device) 13, and a switch (second device) 14. The cover portion 11 is installed to protect the operating device 13 and the switch 14. In particular, the cover portion 11 protects the parts of the operating device 13 other than the front and the parts of the switch 14 other than the front.
[0013] The operating device 13 and the switch 14 are connected via a connection line 37. Further, an operation surface 31 including operation buttons and the like is provided on the front surface of the operating device 13. A switch portion 32 is provided on the front surface of the switch 14.
[0014] The cover portion 11 is formed with a first opening 26 through which at least a part of the front surface of the operating device 13 is exposed. Further, the cover portion 11 is formed with a second opening 27 through which at least a part of the front surface of the switch 14 and the switch portion 32 provided on the front surface are exposed.
[0015] [Comparative Example] Next, as a comparative example of the distribution board 100, a distribution board 500 in which an operating device 513 and a switch 514 are housed will be described. FIG. 3 is a schematic diagram showing the positional relationship between the operating device 513 and the switch 514 in the distribution board 500 according to the comparative example.
[0016] As shown in FIG. 3, the distribution board 500 according to the comparative example includes a cover portion 511 that protects the operating device 513 and the switch 514. An operation surface 531 provided on the front surface of the operating device 513 and a switch portion 532 provided on the front surface of the switch 514 are exposed from the cover portion 511.
[0017] Further, the cover portion 511 has a substantially flat shape. That is, the operating device 513 and the switch 514 are arranged such that the front surfaces of the operating device 513 and the switch 514 are approximately at the same position in the depth direction (front-rear direction).
[0018] [Detailed Configuration of Distribution Board According to Embodiment of the Present Disclosure] (Positional Relationship between Operating Device and Distribution Board, and Configuration of Cover Portion) Next, the detailed configuration of the distribution board 100 according to the embodiment of this disclosure will be described. Figure 4 is a schematic diagram showing the positional relationship between the operating device 13 and the switch 14 in the distribution board 100 shown in Figure 2. In the distribution board 100, the operating device 13 and the switch 14 are arranged such that, in the depth direction (front-to-back direction), the front of the operating device 13 is located in front of the front of the switch 14 (towards the front in the front-to-back direction).
[0019] More specifically, a first support portion 33 for fixing the operating device 13 to the base portion 12 and a second support portion 34 for fixing the switch 14 to the base portion 12 are attached to the base portion 12. The first support portion 33 is longer in the depth direction than the second support portion 34. As a result, the front of the operating device 13 fixed to the first support portion 33 is positioned in front of the front of the switch 14 fixed to the second support portion 34.
[0020] The cover portion 11 has a recess in part. More specifically, the cover portion 11 has a first surface 21, a second surface 22, and a third surface 23. The second surface 22 is located between the first surface 21 and the third surface 23. The first surface 21 and the third surface 23 are located in front of the second surface 22 in the depth direction. That is, the second surface 22 corresponds to the bottom surface of the recess.
[0021] Furthermore, the cover portion 11 has a first connecting surface 24 that connects the first surface 21 and the second surface 22, and a second connecting surface 25 that connects the second surface 22 and the third surface 23. The angle between the first connecting surface 24 and the first surface 21 is, for example, a right angle or greater. Similarly, the angle between the second connecting surface 25 and the third surface 23 is, for example, a right angle or greater. In Figure 4, as an example, the angle between the first connecting surface 24 and the first surface 21, and the angle between the second connecting surface 25 and the third surface 23 are both right angles.
[0022] Referring again to Figure 2, the first surface 21 has the first opening 26 described above, and at least a portion of the front surface of the operating device 13 is exposed through the first opening 26. Also, the second surface 22 has the second opening 27 described above, and at least a portion of the front surface of the switch 14 is exposed through the second opening 27.
[0023] As described above, the front surface of the operating device 13 exposed through the first opening 26 is located closer to the front than the front surface of the switch 14 exposed through the second opening 27. Therefore, when an operator touches the operating surface 31 of the operating device 13, it is possible to prevent the operator's hand or other body part from unintentionally coming into contact with the switch portion 32 of the switch 14.
[0024] Furthermore, the operating device 13 has, for example, a first housing portion 15A and a second housing portion 15B that constitute the housing. The first opening 26 of the cover portion 11 is located in front of the dividing line 16, which is the boundary between the first housing portion 15A and the second housing portion 15B, in the depth direction. Therefore, when the cover portion 11 is attached to the housing 10, the dividing line 16 of the operating device 13 is located inside the cover portion 11, thus preventing the first housing portion 15A and the second housing portion 15B of the operating device 13 from being unintentionally separated.
[0025] (wiring) Referring again to Figure 4, a first wiring port 35 for attaching the connecting wire 37 is provided on the back of the operating device 13. Additionally, a second wiring port 36 for attaching the connecting wire 37 is provided on the side of the switch 14. In this example, the second wiring port 36 is provided on the top surface of the switch 14, which is the side closest to the operating device 13.
[0026] The operating device 13 and the switch 14 are positioned such that the second wiring port 36 of the switch 14 is located further back than the first wiring port 35 of the operating device 13. If the second wiring port 36 were located in front of the first wiring port 35, the connecting wire 37 would need to be bent multiple times. In contrast, in this example, wiring is possible with only one bend in the connecting wire 37. In other words, the number of times the connecting wire 37 needs to be bent can be reduced. Therefore, the wiring length of the connecting wire 37 can be shortened. In addition, the risk of breakage due to bending of the connecting wire 37 can be reduced, and the effort required when wiring the connecting wire 37 can be reduced.
[0027] Furthermore, since the number of times the connecting wire 37 needs to be bent can be reduced, the distance between the operating device 13 and the switch 14 can be made shorter than the distance between the operating device 513 and the switch 514 in the comparative example distribution board 500 shown in Figure 3. This makes it possible to miniaturize the distribution board 100.
[0028] (Structure designed to facilitate the attachment and removal of the cover) Figure 5 is a perspective view illustrating the detailed configuration of the cover portion 11 shown in Figures 1 and 2. In Figure 5, the housing 10 shown in Figures 1 and 2 is omitted. As described above, the first surface 21 of the cover portion 11 is located in front of the second surface 22. That is, there is a step between the first surface 21 and the second surface 22.
[0029] Therefore, when attaching or detaching the cover portion 11 to the housing 10 (see Figure 2), the worker can hold the cover portion 11 by placing their fingers on the first connecting surface 24, which is provided in the step between the first surface 21 and the second surface 22. Consequently, there is no need to provide a handle or the like for holding the cover portion 11, and the workability when attaching or detaching the cover portion 11 can be improved.
[0030] Furthermore, the cover portion 11 has notches 29 formed in at least part of its four corners. In Figure 5, as an example, notches 29 are formed in two places on both sides of the lower end of the third surface 23, among the four corners of the cover portion 11.
[0031] With this configuration, when attaching or detaching the cover portion 11 to the housing 10 (see Figure 2), for example, an operator can hold the cover portion 11 by placing their fingers on the second connecting surface 25 and the notch 29. Note that the notch 29 is not limited to the four corners of the cover portion 11, but can be formed at any point along the edge of the cover portion 11.
[0032] Furthermore, instead of forming a notch 29 in the cover portion 11, or in addition to the notch 29, a hole may be formed on the third surface 23, for example, into which a worker's finger can be inserted. In such a configuration, the configuration of the present disclosure in which the third surface 23 protrudes toward the front can be effectively utilized.
[0033] (Structure that supports the cover) (a) Support by the first support As shown in Figure 5, the upper end of the cover portion 11 is provided with a bent portion 28 that bends toward the rear (rear side in the front-rear direction). In addition, the upper end of the first support portion 33, which fixes the operating device 13 to the base portion 12, is provided with a projection portion 39 that protrudes upward. The upper end of the projection portion 39 bends toward the front (front side in the front-rear direction), and the tip of the front side further extends downward. In the example shown in Figure 5, two projection portions 39 are provided at the upper end of the first support portion 33.
[0034] When the cover portion 11 is attached to the housing 10 (see Figure 2), the bent portion 28 of the cover portion 11 abuts against the upper surface of each protrusion 39 of the first support portion 33, and further, the first surface 21 of the cover portion 11 abuts against the portion of each protrusion 39 that extends downward. Therefore, by fixing the positional relationship between the first surface 21 and the protrusion 39 with a fixing member 45 such as a screw, the cover portion 11 can be fixed to the first support portion 33.
[0035] In the cover portion 11 shown in Figure 5, the angle between the first surface 21 and the bent portion 28 is approximately a right angle, but the configuration is not limited to this. For example, the angle between the first surface 21 and the bent portion 28 may be an obtuse angle. In such a configuration, for example, if the fixing member 45 that fixes the positional relationship between the bent portion 28 and the protruding portion 39 is removed, the cover portion 11 will move towards the front due to its own weight. Therefore, the cover portion 11 can be easily removed.
[0036] (b) Support by post The distribution board 100 further includes a post portion 40 that connects the base portion 12 and the cover portion 11 and extends along the depth direction. The post portion 40 has, for example, a flat upper surface, and this upper surface of the post portion 40 abuts against the second connecting surface 25 of the cover portion 11. This allows the cover portion 11 to be supported more stably. In addition, the step difference between the second surface 22 and the third surface 23 of the cover portion 11 can be effectively utilized.
[0037] The third surface 23 may be provided in the same position as the second surface 22 in the depth direction. However, if the third surface 23 is located in front of the second surface 22, a retaining hole or the like can be formed in the third surface 23 as described above. Also, if the third surface 23 is located in front of the second surface 22, a space is formed inside the third surface 23, and clay (not shown) or the like for fixing the connecting wire 37 can be stored in this space.
[0038] [Differences in the cover section] Figures 6 to 9 are perspective views showing modified versions of the cover portion 11 shown in Figure 5. For example, as shown in Figure 6, a resin member (anti-slip portion) 41 with a recess that allows an operator to grip it may be attached to the first connecting surface 24 of the cover portion 11.
[0039] Furthermore, the first connecting surface 24 may be provided with a rubber sheet (anti-slip portion) 42 as shown in Figure 7. Also, the first connecting surface 24 may have elongated openings (anti-slip portions) 43 as shown in Figure 8. Additionally, the first connecting surface 24 may have a plurality of circular holes (anti-slip portions) 44 as shown in Figure 9.
[0040] Thus, when the first connecting surface 24 is provided with an anti-slip feature such as a resin member 41 (see Figure 6), a rubber sheet 42 (see Figure 7), an elongated opening 43 (see Figure 8), or a round hole 44 (see Figure 9), it becomes easier for the worker to secure their fingers to the first connecting surface 24 when attaching or detaching the cover portion 11 to the housing 10 (see Figure 2). This improves work efficiency.
[0041] Alternatively, the second connecting surface 25 may be provided with an anti-slip portion instead of the first connecting surface 24, or in addition to the first connecting surface 24.
[0042] Figure 10 is a schematic diagram illustrating another modification of the cover portion 11 shown in Figure 5. The distribution board 100 shown in Figure 10 includes a cover portion 11A instead of the cover portion 11 shown in Figure 4.
[0043] In the cover portion 11 shown in Figure 4, the angle between the first connecting surface 24 and the first surface 21, and the angle between the second connecting surface 25 and the third surface 23 are both approximately right angles. In contrast, in the cover portion 11A shown in Figure 10, the angle between the first connecting surface 24 and the first surface 21 is acute. With this configuration, when attaching or detaching the cover portion 11A to the housing 10 (see Figure 2), the worker can easily grip the first connecting surface 24 with their fingers, improving work efficiency. Note that the angle between the first connecting surface 24 and the first surface 21 only needs to be approximately right or acute, and a curved surface (R surface) may be formed between the first connecting surface 24 and the first surface 21.
[0044] Furthermore, in the cover portion 11A, instead of the angle between the first connecting surface 24 and the first surface 21 being acute, or in addition to the angle between the first connecting surface 24 and the first surface 21 being acute, the angle between the second connecting surface 25 and the third surface 23 may also be acute.
[0045] As described above, the distribution board 100 according to this embodiment is A housing 10 that houses the operating equipment 13 and the switch 14 inside, It includes a cover portion 11 that is mounted on the front of the housing 10 and protects the operating equipment 13 and the switch 14, In the depth direction of the housing 10, the operating device 13 and the switch 14 are arranged such that the front of the operating device 13 is located in front of the front of the switch 14. The cover portion 11 is It has a first surface 21 with a first opening 26 formed therein, which exposes at least a portion of the front surface of the operating device 13, and a second surface 22 with a second opening 27 formed therein, which exposes at least a portion of the front surface of the switch 14. In the depth direction, the first surface 21 is located closer to the viewer than the second surface 22.
[0046] This configuration allows both the front of the operating device 13 and the front of the switch 14 to be operated from the front, and prevents the operator's hand or other body parts from unintentionally coming into contact with the front of the switch 14 when operating the operating device 13. In other words, it prevents erroneous operation.
[0047] Furthermore, in the distribution board 100 according to this embodiment, The cover portion 11 has a first connecting surface 24 that connects the first surface 21 and the second surface 22. The angle between the first connecting surface 24 and the first surface 21 is acute.
[0048] This configuration makes it easier for the worker to grip the first connection surface with their fingers when attaching or detaching the cover from the housing, thus improving work efficiency.
[0049] Furthermore, in the distribution board 100 according to this embodiment, The cover portion 11 has a first connecting surface 24 that connects the first surface 21 and the second surface 22. The angle between the first connecting surface 24 and the first surface 21 is greater than or equal to a right angle. The first connecting surface 24 is provided with anti-slip portions 41, 42, 43, and 44.
[0050] This configuration makes it easier for the worker to grip the first connection surface 24 when attaching or detaching the cover portion 11 to the housing 10, thereby improving work efficiency.
[0051] Furthermore, in the distribution board 100 according to this embodiment, A first wiring port 35 is provided on the back of the operating device 13, to which a connecting wire 37 is attached. A second wiring port 36 is provided on the side of the switch 14, to which a connecting wire 37 is attached. In the depth direction, the operating equipment 13 and the switch 14 are arranged such that the second wiring port 36 is located further back than the first wiring port 35.
[0052] This configuration reduces the number of times the connecting wire 37 needs to be bent. As a result, the wiring length can be shortened. In addition, the risk of wire breakage due to bending of the connecting wire 37 can be reduced. Furthermore, since the distance between the operating device 13 and the switch 14 can be shortened, the size of the distribution board 100 can be reduced.
[0053] Furthermore, in the distribution board 100 according to this embodiment, a notch 29 is formed on the edge of the cover portion 11.
[0054] With this configuration, when attaching or detaching the cover portion 11 to the housing 10, the worker can easily hold the cover portion 11 by placing their fingers in the notch 29, thereby improving work efficiency.
[0055] Furthermore, in the distribution board 100 according to this embodiment, The cover portion 11 further has a third surface 23, The second face 22 is located between the first face 21 and the third face 23. In the depth direction, the third surface 23 is located closer to the viewer than the second surface 22.
[0056] With this configuration, a space is formed inside the third surface 23 of the housing 10, allowing clay or other materials for securing the connecting wires 37 to be stored in this space. Furthermore, it is possible to better prevent the operator's hands from unintentionally coming into contact with the front of the switch 14 when operating the operating device 13, and the operator can also attach or detach the cover 11 to the housing 10 by placing their fingers on the connecting surface between the third surface 23 and the second surface 22.
[0057] Furthermore, the distribution board 100 according to this embodiment further, A base portion 12 is provided on the back inside the housing 10, A first support portion 33 that fixes the operating device 13 to the base portion 12, A second support portion 34 that fixes the switch 14 to the base portion 12, It comprises a base portion 12 and a cover portion 11, and a post portion 40 that extends along the depth direction, The cover portion 11 further has a second connecting surface 25 that connects the second surface 22 and the third surface 23. The post portion 40 is in contact with the second connecting surface 25 of the cover portion 11.
[0058] This configuration allows for more stable support of the cover portion 11. Furthermore, the step difference between the second surface 22 and the third surface 23 of the cover portion 11 can be effectively utilized.
[0059] In the above embodiment, a distribution board 100 equipped with an operating device 13 as a first device and a switch 14 as a second device was described, but the electrical device of this disclosure is not limited to such a distribution board 100. For example, the electrical device of this disclosure may be an alarm panel equipped with an alarm device and a notification device, a control panel equipped with an operating device and a switch, and an instrument panel equipped with an energy meter and wiring equipment.
[0060] While embodiments of this disclosure have been described above, it goes without saying that the technical scope of this disclosure should not be interpreted restrictively by the description of these embodiments. These embodiments are merely examples, and it will be understood by those skilled in the art that various modifications to the embodiments are possible within the scope of the invention described in the claims. The technical scope of this disclosure should be determined based on the scope of the invention described in the claims and the scope of its equivalents. [Explanation of Symbols]
[0061] 10 Housing 11,11A Cover section 12 Base section 13 Operation device (first device) 14 Switch (secondary device) 15A First Enclosure Section 15B Second Enclosure Section 16 dividing lines 21 Page 1 22 Side 2 23 Page 3 24 First connection surface 25 Second connection surface 26. First opening 27. Second opening 28. Bending section 29 Notches 31,531 Operation surface 32,532 Switch section 33 1st support part 34 Second support part 35 1st wiring port 36 2nd wiring port 37,537 connecting lines 39 Protrusion 40 Post Section 41. Resin component (anti-slip part) 42. Rubber sheet (anti-slip part) 43. Elongated opening (anti-slip part) 44 Round holes (anti-slip area) 45 Fixing member 100 Electrical Distribution Panel (Electrical Equipment) 500 distribution board 511 Cover section 513 Operation equipment 514 Switch
Claims
1. A housing that contains the first and second devices, The housing includes a cover portion attached to the front surface of the housing to protect the first and second devices, In the depth direction of the housing, the first and second devices are arranged such that the front of the first device is located closer to the front than the front of the second device. The aforementioned cover portion is The first device has a first surface with a first opening formed therein, exposing at least a portion of its front surface, and the second device has a second surface with a second opening formed therein, exposing at least a portion of its front surface. An electrical device wherein, in the depth direction, the first surface is located in front of the second surface.
2. The cover portion has a first connecting surface that connects the first surface and the second surface, The electrical device according to claim 1, wherein the angle between the first connecting surface and the first surface is acute.
3. The cover portion has a first connecting surface that connects the first surface and the second surface, The angle between the first connecting surface and the first surface is a right angle or greater. The electrical device according to claim 1, wherein the first connecting surface is provided with an anti-slip portion.
4. A first wiring port for connecting wires is provided on the back of the first device, A second wiring port for connecting wires is provided on the side of the second device. The electrical device according to any one of claims 1 to 3, wherein the first device and the second device are arranged such that, in the depth direction, the second wiring port is located further back than the first wiring port.
5. The electrical device according to any one of claims 1 to 3, wherein a notch is formed on the edge of the cover portion.
6. The cover portion further has a third surface, The second surface is located between the first surface and the third surface, The electrical device according to any one of claims 1 to 3, wherein in the depth direction, the third surface is located in front of the second surface.
7. The aforementioned electrical device further, A base portion provided on the rear inside the housing, A first support portion for fixing the first device to the base portion, A second support portion for fixing the second device to the base portion, It comprises a post portion that connects the base portion and the cover portion and extends along the depth direction, The cover portion further has a second connecting surface that connects the second surface and the third surface, The electrical device according to claim 6, wherein the post portion is in contact with the second connecting surface of the cover portion.