Electrical and electronic equipment storage boxes
The use of a string-like packing with a ring arrangement and abutting portions in the box body and cover member simplifies the assembly of electrical and electronic equipment storage boxes, improving waterproof performance by eliminating the need for precise shaping and enhancing work efficiency.
Patent Information
- Application Number
- JP2021071727
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-04-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2041-04-21
AI Technical Summary
Existing methods for improving the waterproof performance of electrical and electronic equipment storage boxes require time and effort to mold and cut packing materials into specific shapes, necessitating high precision and complicating the assembly process.
A string-like packing is used that is cut to length and arranged in a ring, with a box body and cover member that include abutting portions to press the packing ends, and a groove with a wider portion for attachment, along with a drainage hole to enhance waterproofing without the need for precise shaping.
This approach improves waterproof performance by simplifying the packing assembly process and maintaining effective sealing without the need for precise shaping, enhancing work efficiency and reliability.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a storage box for electric and electronic equipment. [Background technology]
[0002] As described in Patent Document 1, a box for storing electrical and electronic equipment with a packing is known. In the technology described in Patent Document 1, a ring-shaped packing with a substantially triangular cross-sectional shape is used to uniformly press the cover. More specifically, a packing with a height slightly greater near the middle than near the screw fixing of the housing is used. In addition, in the technology described in Patent Document 2, in order to ensure that the joints of the packing are connected reliably and provided without gaps, the packing is cut to form a special shape that matches when the ends of the packing are butted together. In addition, in the technology described in Patent Document 3, in order to avoid distortion of the housing, a material such as silicon having low hardness and compressibility is applied, and a material such as silicon having high hardness and elasticity is directly applied on top of that. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 58-184880 [Patent Document 2] JP 2010-270876 A [Patent Document 3] Japanese Patent Application Publication No. 10-324360
[0004] However, when trying to use these technologies, it takes a lot of time and effort to shape the packing, such as forming it into a ring shape to match the shape of the case, making slight height adjustments, creating a special cut shape to ensure that the packing joints are spaced without gaps, paying careful attention to the positioning so that the special cut shapes fit together properly, applying the paint twice, etc. Furthermore, when trying to give the end of the packing a special shape, a high level of precision is required to give it the appropriate length and shape, and it is not easy to achieve this level of precision. Summary of the Invention [Problem to be solved by the invention]
[0005] The inventor of the present invention has made extensive research into this issue and attempted to solve it. The problem that the present invention aims to solve is to improve the waterproof performance of a storage box for electrical and electronic equipment without taking the time and effort into molding the packing. [Means for solving the problem]
[0006] In order to solve the above problems, a box for storing electrical and electronic equipment is provided which comprises a box body having a storage section capable of storing electrical and electronic equipment, a cover member which covers the box body, and a gasket which is positioned between the box body and the cover member to surround the periphery of the storage section when the box body is covered with the cover member, wherein the gasket is string-like and the length is adjusted by cutting the gasket member, and the box for storing electrical and electronic equipment is configured by overlapping the string-like gasket so that the uncut surfaces are in contact and arranged in a ring shape.
[0007] It is also preferable that the rear surface of the cover member is provided with an abutment portion that abuts against the gasket, and that the abutment portion is provided with a first pressing portion capable of pressing one side of the portion where the gasket is overlapped and a second pressing portion capable of pressing the other side.
[0008] It is also preferable that the first pressing portion and the second pressing portion are configured to be continuously connected.
[0009] It is also preferable that the box body be provided with a groove for attaching the packing, with one portion of the groove being wider than the other portion of the groove.
[0010] It is also preferable that the drainage hole is provided so as to be connected to the wide portion of the groove.
[0011] It is also preferable that a space portion to be used when fixing the electrical and electronic equipment storage box is provided inside the electrical and electronic equipment storage box and outside the groove portion, and that the drainage hole is configured to connect the wide portion of the groove portion to the space portion.
[0012] It is also preferable to provide a cable insertion portion through which a cable can be inserted and a space portion which can serve as a drainage path for water that has entered the electrical and electronic equipment storage box at the bottom, and to position the gasket so that a portion of the gasket is recessed toward the inside of the box body at a position adjacent to the space portion. Effect of the Invention
[0013] According to the present invention, it is possible to improve the waterproof performance of a box for storing electric and electronic equipment without taking the time and effort of molding a packing. [Brief description of the drawings]
[0014] [Figure 1] 1 is a perspective view of an electric / electronic device storage box according to an embodiment; [Diagram 2] 2 is an exploded perspective view of the electronic device storage box shown in FIG 1, with the packing omitted. [Diagram 3] FIG. 3 is a perspective view of the box body shown in FIG. 2. [Figure 4] 3 is a front view of the box body shown in Fig. 2, with the packing not yet attached. [Diagram 5] 3 is a front view of the box body shown in Fig. 2 with the packing attached. [Figure 6] 3 is a rear view of the cover member shown in FIG. 2. FIG. [Figure 7]7 is a perspective view of a portion of the cover member shown in FIG. 6. [Figure 8] 6 is a cross-sectional view of the electric / electronic device storage box shown in FIG. 1 taken along line IIX-IIX shown in FIG. 5. [Figure 9] 9 is a cross-sectional view of the electric / electronic device storage box shown in FIG. 1 taken along line IX-IX shown in FIG. 5. [Figure 10] 6 is a cross-sectional view of the electric / electronic device storage box shown in FIG. 1 taken along the line XX shown in FIG. 5. [Figure 11] 2 is a perspective view of a box body and a cover member shown in FIG. 1. [Figure 12] 12 is a perspective view of the box body shown in FIG. 11 as viewed obliquely from below. [Figure 13] FIG. 13 is a partially enlarged view of the box body shown in FIG. [Figure 14] FIG. 13 is a perspective view of a portion of a modified example of the cover member. [Figure 15] 15 is a perspective view of the pressing portion and its periphery shown in FIG. 14, seen from a slightly different angle. [Figure 16] 13 is a front view of a box body in a modified example, with no packing attached. [Figure 17] 13 is a perspective view of a box body in a modified example, with the packing not yet attached. [Figure 18] 13 is a front view of a box body in a modified example, with a packing attached. [Figure 19] 13 is a perspective view of a box body in a modified example, with a packing attached. [Figure 20] 19A and 19B are diagrams showing examples of a cover member that corresponds to the box main body shown in FIG. 18. [Figure 21] 21 is a perspective view of a portion of the cover member shown in FIG. 20. [Figure 22] 13A and 13B are diagrams illustrating modified examples of how the packing is connected. [Figure 23] 13A and 13B are diagrams illustrating modified examples of how the packing is connected. [Figure 24] FIG. 2 is a perspective view of the electrical / electronic device storage box as seen from the rear side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] The embodiment of the invention is described below. As can be understood from FIG. 1 to FIG. 5, the box 1 for storing electrical and electronic equipment of this embodiment includes a box body 10 having a storage section 11 capable of storing electrical and electronic equipment 91, a cover member 30 for covering the box body 10, and a packing 50 that is positioned so as to surround the periphery of the storage section 11 between the box body 10 and the cover member 30 when the box body 10 is covered with the cover member 30. The packing 50 of this box 1 for storing electrical and electronic equipment is a string-like one formed by adjusting the length by cutting a packing member, and the string-like packing 50 is layered so that the uncut surfaces are in contact with each other and arranged in a ring shape. For this reason, it is not necessary to make a ring-shaped packing 50 exclusively for the equipment, and it is not necessary to cut it to a length or shape such that the cut surfaces are in proper contact with each other, so that the waterproof performance of the box 1 for storing electrical and electronic equipment can be improved without taking time and effort in forming the packing 50. In addition, it is not necessary to be nervous when arranging the packing 50, so the workability is improved.
[0016] Here, an explanation will be given taking as an example the electrical / electronic device storage box 1 shown in Figures 1 and 2. The electrical / electronic device storage box 1 includes a box body 10 having a storage section 11 capable of storing electrical / electronic devices 91, a cover member 30 that covers the box body 10, and a packing 50 that is positioned between the box body 10 and the cover member 30 so as to surround the periphery of the storage section 11 when the box body 10 is covered with the cover member 30.
[0017] The box body 10 shown in Figs. 2 and 3 is formed in a rectangular tubular shape having a bottom surface. A partition wall 17 is erected from the bottom surface of the box body 10 toward the front surface. This partition wall 17 defines a storage section 11 in which an electric / electronic device 91 is stored near the center of the box body 10. As can be understood from Figs. 3 to 5, the partition wall 17 of the embodiment is provided with a groove portion 12 capable of storing a packing 50 so as to surround the periphery of the storage section 11 in a front view. In the embodiment, a part of the groove portion 12 is made wider than the other part of the groove portion 12 so that the overlapped portion of both ends of the string-like packing 50 is fitted into the groove portion 12 so that the uncut surfaces of the string-like packing 50 are in contact with each other.
[0018] The bottom surface of the box body 10 is formed with screw fixing holes 21 used for fixing the electrical / electronic device storage box 1 to a desired location. At the top and bottom of the box body 10, the screw fixing holes 21 are located between the side surface of the box body 10 and the partition wall 17, and a space 14 is provided between the side surface of the box body 10 and the partition wall 17 to allow access to the screw fixing holes 21.
[0019] Meanwhile, a string-like packing 50 is attached to the groove 12 provided in the box body 10. The packing 50 may have any shape as long as it extends so that it can be recognized as a single piece, and the cross-sectional shape is not important. In the embodiment, the groove 12 is formed to match the width (thickness) of the packing 50, and the packing 50 can be attached so as not to come off easily by fitting it into the groove. It is preferable to form a plurality of protrusions 18 in the groove 12 so that the packing 50 does not come off easily. Other methods may be used to make the packing 50 difficult to come off, for example, an adhesive may be used.
[0020] In the example shown in Fig. 5, when the packing 50 is attached, both ends of the packing 50 are overlapped in the width direction of the packing 50. Therefore, when viewed from the front, only this portion where the packing 50 is located is thicker in the width direction (see Fig. 5). In the example shown in Fig. 5, both ends of the packing 50 are located on the lower side of the annularly arranged packing 50, and the ends of the packing 50, which has a substantially rectangular cross section, are overlapped vertically. In the following, the portion where both ends of the string-shaped packing 50 overlap is called a joint 52.
[0021] The box body 10 can be covered with a cover member 30, and the cover member 30 in the example shown in Figures 6 and 7 has a box shape with one open side. This cover member 30 has a rib 31 that is provided from the front side toward the inside (rear) of the box body 10 for abutting against the packing 50 when the cover member 30 is attached to cover the open side of the box body 10.
[0022] In the embodiment, when the cover member 30 is attached to the box body 10, the tip of the rib 31 abuts against the packing 50. In the abutting portion 32, at a position corresponding to the joint portion 52 of the packing 50, the rib 31 can press both ends of the packing 50 that are positioned in parallel. In this way, a force can be applied evenly to the ends of the packing 50, and waterproofing can be maintained. The part of the abutting portion 32 that can press at least one of the overlapping portions of the packing 50 is referred to as the pressing portion 33, the part that can press one side of the overlapping portions is referred to as the first pressing portion 33a, and the part that can press the other side is referred to as the second pressing portion 33b.
[0023] In order to make this possible, the pressing portion 33 of the rib 31 shown in Fig. 6 and Fig. 7 is formed to extend in the width direction of the packing 50 so that the first pressing portion 33a and the second pressing portion 33b are continuously connected. By doing so, as can be understood from Fig. 8, both ends of the packing 50 can be pressed by the pressing portion 33. In the embodiment, the portion of the rib 31 extending in the vertical direction is made to abut across the ends of the two packings 50, which are the joint portion 52, but the pressing portion 33 does not need to be limited to the portion extending in the vertical direction. For example, the pressing portion 33 may be formed on a portion inclined in the vertical direction or on a surface formed to be thick.
[0024] In addition, in order to provide a waterproof function, the rib 31 in the embodiment is formed into a ring shape roughly similar to the groove portion 12, and as can be seen from Figures 8 to 10, the rib 31 prevents water from entering the storage portion 11 from between the gasket 50 and the rib 31.
[0025] In the embodiment, the drain hole 13 is configured to be connected to the groove portion 12 so that even if water seeps into the gap of the groove portion 12 to which the packing 50 can be attached, the water can be drained from the groove portion 12. In the example shown in Fig. 4 and Fig. 5, the drain hole 13 is located below the joint portion 52, and is provided so as to extend in the vertical direction so as to connect to the lower part of a part of the groove portion 12 that is wider than the other parts. More specifically, the drain hole 13 in the embodiment is provided so as to connect to a part of the groove portion 12 that is wide enough to accommodate two packings 50 side by side.
[0026] Here, a method of attaching the cover member 30 to the box body 10 of the electrical / electronic device storage box 1 shown in Fig. 1 etc. will be described. As can be seen from Figs. 11 and 12, the box body 10 has a body-side fitting portion 28 at its upper part and a locking projection 29 at its lower part. The cover member 30 has a cover-side fitting portion 38 at its upper part and a locking claw 39 at its lower part.
[0027] First, the box body 10 and the cover member 30 are connected using the body side fitting portion 28 and the cover side fitting portion 38 provided on the upper side of the box body 10, and the cover member 30 is rotated around the connection point between the body side fitting portion 28 and the cover side fitting portion 38 as the rotation center, so that the locking protrusion 29 provided on the lower side of the box body 10 is hooked onto the locking claw 39 provided on the lower side of the cover member 30, thereby attaching the cover member 30 to the box body 10.
[0028] A cover mating portion 27 extending in the vertical direction is formed on the outside of the partition wall 17 of the box body 10 in the left-right direction so that its front end is located slightly rearward of the front end of the partition wall 17. When the cover member 30 is attached so that its rear end abuts against the cover mating portion 27 of the box body 10, a gap exists between the cover member 30 and the box body 10.
[0029] 13, in the embodiment, the partition wall 17 and the cover mating portion 27 are partly discontinuous in the lower portion of the box body 10 to form the drainage channel 26. Although there is a risk of water entering the space portion 14 located outside the annularly arranged packing 50, the entering water can be drained to the outside of the electrical and electronic device storage box 1 via the drainage channel 26.
[0030] Since the drainage hole 13 communicating with the groove portion 12 is a through hole connecting the groove portion 12 and the space portion 14, water that has entered the groove portion 12 can be guided to the space portion 14 through the drainage hole 13, and the water can be drained from the groove portion 12. In addition, the water that has entered the space portion 14 can be discharged to the outside via the drainage channel 26. Inclining the lower portion of the space portion 14 toward the drainage channel 26 makes it easier for the water to flow into the drainage channel 26. For this reason, in the embodiment, the lower portion of the space portion 14 is inclined to create a slope toward the front side. Furthermore, the lower portion of the space portion 14 may be inclined in the left-right direction toward the drainage channel 26.
[0031] In the electric / electronic device storage box 1 of the embodiment, when the cover member 30 is attached, the drainage hole 13 is covered by the cover member 30. In this way, the drainage hole 13 is not exposed to the outside of the electric / electronic device storage box 1, so that even if wind and rain occur, water can be prevented from entering (backflowing) through the drainage hole 13. In addition, the packing 50 located at the back side of the drainage hole 13 can be prevented from deteriorating due to external factors such as ultraviolet rays.
[0032] 13, in this embodiment, the bottom surface of the box body 10 is provided with a cable insertion portion 15 for passing a cable for connecting to the outside. This allows input and output of information between the box body 10 and the outside. Note that it is preferable to use a waterproof connector (not shown) to prevent water from entering through the cable insertion portion 15.
[0033] In this manner, the lower part of the box body 10 of the embodiment is provided with the cable insertion portion 15 through which the cable can be inserted, and the space portion 14 is also provided in the lower part of the box body 10. This makes it possible to prevent water from entering the box body 10 along the cable, and also makes it possible to dispose the space portion 14 at an appropriate position, which can serve as a drainage path for water that has entered the electrical and electronic device storage box 1.
[0034] Furthermore, in order to avoid the need to extend the box body 10 downward even with such an arrangement, in the embodiment, the space portion 14 and the cable insertion portion 15 are provided side by side at the bottom of the box body 10, and the gasket 50 is arranged so that a portion of the gasket 50 is recessed toward the inside of the box body 10 at a position adjacent to the space portion 14.
[0035] However, the electric / electronic device storage box 1 does not necessarily have to have the above-mentioned configuration. For example, as can be seen from Fig. 14 and Fig. 15, a gap 34 through which water can be drained may be provided between the first pressing portion 33a and the second pressing portion 33b so that the first pressing portion 33a and the second pressing portion 33b are discontinuous.
[0036] 4 and 5, the drain hole 13 connected to the groove 12 is provided above the space 14, but as can be seen from Figures 16 to 19, the drain hole 13 connected to the groove 12 may be provided on the side of the space 14. In this way, water can be discharged from the height of the lower end of the groove 12 toward the space 14, making it easier to drain the water.
[0037] Incidentally, even when the box body 10 is configured as shown in Figures 16 to 19, it is preferable to provide the cover member 30 with the pressing portion 33. In this case, for example, as can be understood from Figures 20 and 21, the first pressing portion 33a and the second pressing portion 33b may be discontinuous.
[0038] 5, both ends of the packing 50 overlap slightly, but as can be seen from FIG 22, both ends of the packing 50 may overlap for a relatively long distance. If the overlapping portion is longer, the packing will have more doubled portions, improving waterproofing, but the manufacturing costs will be higher, so it is preferable to make the overlapping portion an appropriate length and have only a certain length of both ends overlap.
[0039] In the example shown in Fig. 5, both cut surfaces at both ends of the packing 50 face in opposite directions, but the present invention is not limited to this configuration. For example, as can be seen from Fig. 23, both cut surfaces at both ends of the packing 50 may face in the same direction. In the example shown in this figure, the uncut surfaces of the string-like packing 50 are stacked side by side in the left-right direction, but they may be stacked side by side in other directions, such as the up-down direction.
[0040] 11, the electric / electronic device storage box 1 of the embodiment has a body side lock mounting part 25 on the box body 10 and a cover side lock mounting part 37 on the cover member 30. When the cover member 30 is attached to the box body 10, the hole provided in the body side lock mounting part 25 and the hole provided in the cover side lock mounting part 37 face each other, so if a padlock or the like is attached so as to pass through these holes, it becomes difficult to remove the cover member 30 from the box body 10.
[0041] 11, the box body 10 of the embodiment is provided with a knockout portion 24. This knockout portion 24 is a portion that can be removed as necessary, and can be made to be in a penetrated state by removing this knockout portion 24 with a tool or the like. When it is desired to attach a device such as an external antenna or a sensor that measures the external environment to the outside of the box, this knockout portion 24 can be removed so that the device can be attached.
[0042] 12, the bottom surface of the box body 10 of the embodiment is provided with a cable support portion 23 that can be used to support a cable. For example, if a binder or the like is passed through this cable support portion 23 to support the cable inserted into the cable insertion portion 15, it is possible to prevent the force from being directly applied to the connection portion between the electrical and electronic equipment storage box 1 and the cable even if an unexpected force is applied to the cable.
[0043] As can be seen from Fig. 24, a magnet 81 is attached to the back surface of the box body 10 of the embodiment in addition to the screw fixing holes 21. The magnet 81 may be used to fix the electrical and electronic equipment storage box 1 to a desired location. The back surface of the box body 10 of the embodiment is also provided with a belt fixing section 82 for passing a band such as a belt through which to fix the box body 10. In this way, by providing the box body 10 with multiple types of fixing means, the fixing method of the box body 10 can be selected depending on the installation location.
[0044] Although the present invention has been described above by taking the embodiment as an example, the present invention is not limited to the above embodiment and can be embodied in various forms. For example, the cover member 30 may be in the form of a door that is pivotally supported on the box body 10 and rotates. [Explanation of symbols]
[0045] 1. Electrical and electronic equipment storage boxes 10 Box body 11 Storage area 12 Groove 13 Drainage hole 14 Space section 15 Cable insertion part 30 Cover member 32 Contact part 33a First pressing part 33b Second pressing part 50 Gasket 91 Electrical and Electronic Equipment
Claims
1. A box for storing electrical and electronic equipment, comprising: a box body having a storage section capable of storing electrical and electronic equipment; a cover member for covering the box body; and a packing that is positioned between the box body and the cover member so as to surround a periphery of the storage section when the box body is covered with the cover member, The packing is a string-like packing formed by adjusting the length by cutting a packing member, and the string-like packing is layered so that the uncut surfaces are in contact with each other to form a ring. The box body is provided with a groove for attaching a packing, and a part of the groove is wider than the other part of the groove, This electric / electronic device storage box has a drainage hole connected to the wide portion of the groove.
2. The electrical and electronic equipment storage box according to claim 1, further comprising a space portion used for fixing the electrical and electronic equipment storage box, the space portion being disposed inside the electrical and electronic equipment storage box and outside the groove portion, and the drainage hole being configured to connect the wide portion of the groove portion to the space portion.
3. A box for storing electrical and electronic equipment, comprising: a box body having a storage section capable of storing electrical and electronic equipment; a cover member for covering the box body; and a gasket that is positioned between the box body and the cover member so as to surround the periphery of the storage section when the box body is covered with the cover member, The packing is a string-like packing formed by adjusting the length by cutting a packing member, and the string-like packing is layered so that the uncut surfaces are in contact with each other to form a ring. This electrical and electronic equipment storage box is provided at the bottom with a cable insertion section through which a cable can be inserted, and a space section which can be used as a drainage path for water that has entered the electrical and electronic equipment storage box, and the packing is arranged so that a part of the packing is recessed toward the inside of the box body at a position adjacent to the space section.
Citation Information
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