Hermetically sealed structure for electronic machinery

Abstract

To provide a sealed structure for electronic devices that can ensure high airtightness. [Solution] When the cover 3 is pressed against the opening 20 side of the housing 2, the opening horizontal portion 21 of the opening edge 2A presses and bends the first deformable portion 44 of the electronic equipment packing 4. With the bolts tightened, the second mounting space S2 of the outer peripheral edge 3A of the cover 3 is closed by the opening horizontal portion 21, the first deformable portion 44 is pressed and deformed by the opening horizontal portion 21, and the second deformable portion 45 of the electronic equipment packing 4 is pressed and deformed by the opening vertical portion 22 of the opening edge 2A.

Description

Technical Field

[0001] This invention relates to a sealing structure for electronic devices for waterproofing water ingress between the housing and the cover of an electronic device.

Background Art

[0002] For example, a radar device (electronic device) for ships is mounted outdoors on a ship and exposed to wind and rain, and it is necessary to periodically replace the internal magnetron. For this reason, a structure is adopted in which a magnetron or the like is housed in a housing so that the magnetron can be taken in and out through an opening of the housing, and the opening of the housing is covered with a cover. At this time, in order to prevent rainwater and seawater from entering the housing, a packing is provided between the opening of the housing and the cover.

[0003] Conventionally, such packing has been structured to deform only in the pressing direction when, for example, the cover is attached so as to be pressed against the housing (see, for example, Patent Document 1). That is, a groove is formed in the end face of the opening of the housing or the end face of the cover, and the packing is inserted and mounted in this groove. Then, by attaching (bolting) the cover so as to press it against the housing, the packing deformed in the pressing direction.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, conventional packings deform only in the direction of pressure, resulting in poor sealing performance. To improve the sealing performance and contact pressure of the packing, it was necessary to increase the number of bolt fastening points, which required time and effort when opening and closing the cover (poor workability). Furthermore, because the packing deforms only in the direction of pressure, in order to ensure the desired sealing performance (amount of deformation), it was necessary to strictly control the dimensions by machining grooves and end faces, which increased costs.

[0006] Therefore, the present invention aims to provide a sealed structure for electronic equipment that can ensure high airtightness. [Means for solving the problem]

[0007] To achieve the above objective, the invention described in claim 1 is a sealing structure for electronic equipment in which an electronic equipment packing is interposed between the opening edge of an opening provided in the housing of the electronic equipment and the outer peripheral edge of a cover that closes the opening, and the cover is bolted so as to be pressed against the opening side, wherein, in a plane perpendicular to the direction in which the opening edge extends, the opening edge comprises an opening horizontal portion extending toward the cover side and an opening vertical portion extending substantially perpendicularly from the opening horizontal portion toward the outside of the opening, and, in a plane perpendicular to the direction in which the outer peripheral edge of the cover extends, the outer peripheral edge of the cover comprises a first cover horizontal portion extending toward the opening side, a second cover horizontal portion located further out of the cover than the first cover horizontal portion and extending substantially parallel to the first cover horizontal portion, and a third cover horizontal portion located further out of the cover than the second cover horizontal portion and extending toward the opening side, and the space between the first cover horizontal portion and the second cover horizontal portion is a first The packing for electronic equipment is characterized in that, when the cover is pressed against the opening, the first deformable portion is bent by the opening horizontal portion of the opening edge, the second mounting space is closed by the opening horizontal portion when the bolts are tightened, the first deformable portion is pressed against the opening horizontal portion and the second deformable portion is pressed against the opening vertical portion and the second deformable portion is pressed against the opening vertical portion when the bolts are tightened, the second mounting space is closed by the opening horizontal portion, the first deformable portion is pressed against the opening horizontal portion and deformed, and the second deformable portion is pressed against the opening vertical portion of the opening edge and deformed.

[0008] The invention described in claim 2 is a sealed structure for electronic equipment described in claim 1, wherein a fourth horizontal cover portion extending toward the opening side is provided between the second horizontal cover portion and the third horizontal cover portion on a plane perpendicular to the direction in which the outer peripheral edge of the cover extends, the space between the second horizontal cover portion and the fourth horizontal cover portion is defined as a third mounting space, the packing for electronic equipment comprises a second horizontal portion extending substantially parallel to the horizontal portion from the vertical portion and mounted in the third mounting space, a third deformable portion protruding outward is provided on at least one of the upper and lower surfaces of the second horizontal portion, and the third deformable portion is pressed and deformed by at least one of the second horizontal cover portion and the fourth horizontal cover portion when the second horizontal portion is mounted in the third mounting space.

[0009] The invention described in claim 3 is characterized in that, in the sealed structure for electronic equipment described in claim 1 or 2, it comprises a plurality of the first deformation portion and the second deformation portion.

[0010] The invention described in claim 4 is a sealed structure for electronic equipment as described in claim 1, wherein a fourth horizontal cover portion extending toward the opening side is provided between the second horizontal cover portion and the third horizontal cover portion on a plane perpendicular to the direction in which the outer peripheral edge of the cover extends, the space between the second horizontal cover portion and the fourth horizontal cover portion is defined as a third mounting space, the packing for electronic equipment comprises a second horizontal portion extending substantially parallel to the horizontal portion from the vertical portion and mounted in the third mounting space, the second horizontal portion is formed such that its thickness decreases from the vertical portion side toward the free end side, and the second horizontal portion is compressed by the second horizontal cover portion and the fourth horizontal cover portion when mounted in the third mounting space. [Effects of the Invention]

[0011] According to the invention described in claim 1, when the cover is bolted to the housing so as to be pressed against the opening side, the first deformable portion of the electronic equipment packing, which extends in a direction substantially perpendicular to the direction of pressing (bolt tightening direction), is pressed and deformed by being bent at the horizontal portion of the opening. At the same time, the second deformable portion, which protrudes towards the opening side, i.e., in the direction of pressing, is pressed and deformed by being pressed at the vertical portion of the opening. In this way, the electronic equipment packing deforms not only in the direction of bolt tightening, but also in a direction substantially perpendicular to the direction of bolt tightening, so that the contact pressure of the electronic equipment packing increases and high sealing performance can be ensured.

[0012] As a result, the number of bolt fastening points can be reduced, improving the ease of opening and closing the cover. Moreover, since the gasket for electronic equipment can deform not only in the direction of bolt tightening but also in a nearly perpendicular direction, ensuring a high level of airtightness, it becomes possible to reduce the need for machining the opening edges of the housing or the outer edges of the cover.

[0013] According to the invention described in claim 2, when the second lateral portion of the electronic device packing is fitted into the third mounting space, the third deformable portion provided on the second lateral portion is pressed and deformed. As a result, the second lateral portion is firmly fitted into the third mounting space, and even if the first deformable portion is pulled towards the opening horizontal portion when the cover is removed from the housing, it is possible to prevent the electronic device packing from coming off the cover. As a result, it is no longer necessary to reattach the electronic device packing to the cover, improving work efficiency.

[0014] According to the invention described in claim 3, since there are multiple first deformable parts and second deformable parts, the contact pressure (amount of deformation) of the packing for electronic equipment becomes even higher, and it becomes possible to ensure even higher sealing performance.

[0015] According to the invention described in claim 4, when the second lateral portion of the electronic device packing is installed in the third mounting space, the second lateral portion is compressed by the second cover horizontal portion and the fourth cover horizontal portion. As a result, the second lateral portion is firmly installed in the third mounting space, and even if the first deformed portion is pulled towards the opening horizontal portion when the cover is removed from the housing, it is possible to prevent the electronic device packing from coming off the cover. As a result, it is no longer necessary to reattach the electronic device packing to the cover, improving work efficiency.

[0016] Furthermore, since there is no need to provide a third deformable portion on the second lateral portion, it is possible to simplify the packing for electronic equipment and reduce manufacturing costs. Moreover, since the thickness of the second lateral portion is formed to decrease from the vertical portion side toward the free end side, the second lateral portion can be easily fitted into the third mounting space. [Brief explanation of the drawing]

[0017] [Figure 1] This figure shows a sealed structure for electronic equipment according to Embodiment 1 of the present invention. [Figure 2] Figure 1 is a perspective view showing a marine radar system to which the sealed electronic equipment structure is applied. [Figure 3] Figure 2 is a perspective view showing the relationship between the cover of the ship's radar system and the packing for the electronic equipment. [Figure 4] Figure 1 shows the electronic device gasket attached to the outer edge of the cover in the sealed structure for electronic devices. [Figure 5] Following Figure 4, this figure shows the cover being pressed against the opening side of the housing. [Figure 6] Following Figure 5, this figure shows the state after the cover has been further pressed against the opening side of the housing to close the opening. [Figure 7] This figure shows a sealed structure for electronic equipment according to Embodiment 2 of the present invention. [Modes for carrying out the invention]

[0018] Hereinafter, the present invention will be described based on the illustrated embodiments.

[0019] (Embodiment 1) Figs. 1 to 6 show this embodiment, and Fig. 1 is a view showing a sealed structure 1 for an electronic device according to this embodiment. As shown in Figs. 2 and 3, this sealed structure 1 for an electronic device is a structure in which an electronic device packing 4 is interposed between an opening edge 2A of an opening 20 provided in a housing 2 of a marine radar device (electronic device) 100 installed outdoors on a ship and an outer peripheral edge 3A of a cover 3 closing the opening 20, and the cover 3 is bolted (fastened with a bolt 5) so as to be pressed against the opening 20 side.

[0020] Here, in this embodiment, openings 20 are provided on both side surfaces of the housing 2, covers 3 are attached to each opening 20 so as to be openable and closable (detachable), and the sealed structures 1 for electronic devices in both openings 20 have the same structure. Further, both side surfaces of the housing 2 are opened over substantially the entire surface and the openings 20 are provided, the cover 3 is in a substantially rectangular parallelepiped box shape with one surface open, and the entire peripheral edge of the open surface is the outer peripheral edge 3A. And in this sealed structure 1 for an electronic device, the space between the opening edge 2A of the housing 2 and the outer peripheral edge 3A of the cover 3 is sealed, and around the bolt 5, it is sealed with a ring-shaped bolt packing 6.

[0021] Hereinafter, the sealed structure 1 for an electronic device will be described. Mainly, the shape and structure in a plane perpendicular to the direction in which the opening edge 2A of the opening 20 and the outer peripheral edge 3A of the cover 3 extend in a state where the opening 20 is closed by the cover 3 via the electronic device packing 4 will be described. That is, as shown in Fig. 1, the shape and structure of the opening edge 2A of the opening 20 in a cross section perpendicular to the direction in which the opening edge 2A extends will be described, and the shape and structure of the outer peripheral edge 3A of the cover 3 in a cross section perpendicular to the direction in which the outer peripheral edge 3A of the cover 3 extends will be described. Further, the electronic device packing 4 is in a long shape, and the shape and structure in a cross section perpendicular to the longitudinal direction will be described. Also, in order to make the structure easier to understand, hatching is omitted in each figure.

[0022] As shown in Figure 1, the opening edge 2A of the housing 2 comprises a horizontal opening portion 21 extending toward the cover 3, and a vertical opening portion 22 extending substantially vertically from the base of the horizontal opening portion 21 toward the outside of the opening 20. That is, the cross-section of the opening edge 2A is substantially L-shaped and comprises a horizontal opening portion 21 extending substantially horizontally and a vertical opening portion 22 extending substantially vertically.

[0023] The outer peripheral edge 3A of the cover 3 includes a first horizontal cover portion 31 extending toward the opening 20, a second horizontal cover portion 32 located further out (on the outer peripheral side) of the cover 3 than the first horizontal cover portion 31 and extending substantially parallel to the first horizontal cover portion 31, a third horizontal cover portion 33 located further out of the cover 3 than the second horizontal cover portion 32 and extending toward the opening 20, and a fourth horizontal cover portion 34 located between the second horizontal cover portion 32 and the third horizontal cover portion 33 and extending toward the opening 20. Furthermore, the free ends (ends on the opening 20 side) of the second horizontal cover portion 32 and the fourth horizontal cover portion 34 extend toward the opening 20 at substantially the same position than the free end of the first horizontal cover portion 31, and the free end of the third horizontal cover portion 33 extends toward the opening 20 than the free ends of the second horizontal cover portion 32 and the fourth horizontal cover portion 34.

[0024] The space between the first horizontal cover portion 31 and the second horizontal cover portion 32 is defined as the first mounting space S1, the space inside the cover 3 from the third horizontal cover portion 33 (the space up to approximately opposite the free end of the first horizontal cover portion 31) is defined as the second mounting space S2, and the space between the second horizontal cover portion 32 and the fourth horizontal cover portion 34 is defined as the third mounting space S3.

[0025] The electronic device packing 4 is a long, string-like body made of a material that is deformable and watertight. In this embodiment, both ends are bonded together to form a ring. The cross-sectional shape of this electronic device packing 4 is roughly L-shaped, with a horizontal portion 41 extending laterally and a vertical portion 42 extending vertically, and a second horizontal portion 43 extending from the center of the vertical portion 42 substantially parallel to the horizontal portion 41, making the overall shape roughly an inverted F. The free end of the horizontal portion 41 is inserted and fitted into the first mounting space S1 on the outer peripheral edge 3A of the cover 3, and the second horizontal portion 43 is inserted and fitted into the third mounting space S3. In this state, the vertical portion 42 is positioned in the second mounting space S2.

[0026] Furthermore, a first deformable portion 44 is provided on the surface (bottom surface) of the horizontal portion 41 opposite the vertical portion 42, which is located outside the first mounting space S1 when the free end of the horizontal portion 41 is mounted in the first mounting space S1. This first deformable portion 44 extends in a direction substantially perpendicular to the direction F that presses the cover 3 toward the opening 20 (the tightening direction of the bolt 5), and when the cover 3 is pressed toward the opening 20 as described later, it is bent (pushed down) toward the free end of the horizontal portion 41 by the opening horizontal portion 21 of the opening edge 2A. Moreover, when the bolt is tightened, it is pressed and deformed (crushed) by the opening horizontal portion 21 while bent.

[0027] Furthermore, a second deformable portion 45 is provided on the surface of the vertical portion 42 opposite the horizontal portion 41, projecting toward the opening 20. This second deformable portion 45 is a roughly semicircular convex portion, which, when bolted together as described later, is pressed against and deformed (crushed) by the vertical portion 22 of the opening edge 2A.

[0028] Multiple such first deformation portions 44 and second deformation portions 45 are provided (two of each in this embodiment). Furthermore, when bolted together as described later, the second mounting space S2 is closed by the opening horizontal portion 21 of the opening edge 2A, and the free end of the opening horizontal portion 21 and the free end of the first cover horizontal portion 31 come into contact.

[0029] Furthermore, the upper surface (the surface on the fourth horizontal cover portion 34 side) and lower surface (the surface on the second horizontal cover portion 32 side) of the second horizontal portion 43 are provided with multiple convex third deformable portions 46 that protrude outward (two on each side in this embodiment). When the second horizontal portion 43 is mounted in the third mounting space S3, the third deformable portions 46 are pressed and deformed (crushed) by the second horizontal cover portion 32 and the fourth horizontal cover portion 34, so that the second horizontal portion 43 is firmly mounted in the third mounting space S3.

[0030] Furthermore, a fourth deformable portion 47 is provided at the upper part of the vertical portion 42, protruding toward the horizontal portion 41. This fourth deformable portion 47 is a roughly semicircular convex portion, and as will be described later, when bolted together, it is pressed and deformed (crushed) by the vertical wall 35 of the cover that connects the third horizontal portion 33 of the cover and the fourth horizontal portion 34 of the cover.

[0031] Next, we will explain the sealing method using the sealed structure 1 for electronic equipment with this configuration.

[0032] First, as shown in Figure 4, the electronic equipment packing 4 is attached to the outer peripheral edge 3A of the cover 3. That is, the free end of the horizontal portion 41 of the electronic equipment packing 4 is inserted and fitted into the first mounting space S1 of the outer peripheral edge 3A, and the second horizontal portion 43 is inserted and fitted into the third mounting space S3. As a result, the third deformable portion 46 is crushed by the second cover horizontal portion 32 and the fourth cover horizontal portion 34, the second horizontal portion 43 is firmly fitted into the third mounting space S3, and the vertical portion 42 is positioned in the second mounting space S2.

[0033] Next, as shown in Figure 5, when the cover 3 is pressed towards the opening 20, the opening horizontal portion 21 of the opening edge 2A pushes and bends the first deformed portion 44 of the electronic equipment packing 4 toward the free end of the lateral portion 41.

[0034] Next, the cover 3 is pressed further towards the opening 20, and once the bolts 5 are tightened, the opening horizontal portion 21 and the first cover horizontal portion 31 come into contact, as shown in Figure 6, and the second mounting space S2 is closed by the opening horizontal portion 21. In this state, the first deformed portion 44 of the electronic equipment packing 4 is pressed and crushed by the opening horizontal portion 21, the second deformed portion 45 is crushed by the opening vertical portion 22, and the fourth deformed portion 47 is crushed by the cover vertical wall 35.

[0035] In this way, the entire packing 4 for electronic equipment is compressed in the tightening direction F of the bolt 5 and in a direction substantially perpendicular thereto, and adheres tightly to the opening edge 2A of the housing 2 and the outer peripheral edge 3A of the cover 3 with high contact pressure and a wide contact area. In other words, the opening edge 2A of the housing 2, the outer peripheral edge 3A of the cover 3, and the packing 4 for electronic equipment are formed as described above so that such deformation and tight adhesion occur.

[0036] Thus, with this electronic device sealing structure 1, when the cover 3 is bolted to the housing 2 so as to press it against the opening 20, the first deformable portion 44 of the electronic device packing 4, which extends in a direction substantially perpendicular to the pressing direction (bolt tightening direction) F, is pressed and crushed by the horizontal portion of the opening 21. At the same time, the second deformable portion 45 and the fourth deformable portion 47, which protrude in the pressing direction F, are crushed by the vertical portion of the opening 22 and the vertical wall 35 of the cover, respectively. In this way, the electronic device packing 4 deforms not only in the bolt tightening direction F but also in a direction substantially perpendicular to the bolt tightening direction F, which increases the contact pressure of the electronic device packing 4 and makes it possible to ensure high sealing performance.

[0037] Furthermore, since the first deformation portion 44 and the second deformation portion 45 are each provided in multiple quantities, the contact pressure and deformation amount of the electronic equipment packing 4 are further increased, making it possible to ensure even higher sealing performance.

[0038] As a result, the number of fastening points using bolts 5 can be reduced, improving the ease of opening and closing the cover. Moreover, since the packing 4 for electronic equipment can deform not only in the bolt tightening direction F but also in a nearly perpendicular direction, ensuring high airtightness, it becomes possible to reduce the need for machining the opening edge 2A of the housing 2 or the outer edge 3A of the cover 3.

[0039] Furthermore, when the second lateral portion 43 of the electronic device packing 4 is installed in the third mounting space S3, the third deformable portion 46 provided on the second lateral portion 43 is compressed. As a result, the second lateral portion 43 is firmly installed in the third mounting space S3, and even if the first deformable portion 44 is pulled towards the opening horizontal portion 21 when removing the cover 3 from the housing 2, it is possible to prevent the electronic device packing 4 from coming off the cover 3. As a result, there is no need to reattach the electronic device packing 4 to the cover 3, improving work efficiency.

[0040] (Embodiment 2) Figure 7 shows a sealed structure 10 for electronic equipment according to this embodiment. This embodiment differs in configuration from Embodiment 1, for example, in that it does not have a third deformation part 46. Components equivalent to those in Embodiment 1 are denoted by the same reference numerals and their descriptions are omitted.

[0041] The second lateral portion 43 of the electronic device packing 4 does not have a third deformable portion 46. Instead, it is formed so that its thickness decreases from the vertical portion 42 side towards the free end side. That is, to facilitate installation in the third mounting space S3, the second lateral portion 43 is formed so that its thickness is thin at the free end / tip side and gradually increases towards the vertical portion 42 side. When the second lateral portion 43 is installed in the third mounting space S3, it is compressed by the second cover horizontal portion 32 and the fourth cover horizontal portion 34. In other words, the thickness of the second lateral portion 43 is formed so that it is easy to install in the third mounting space S3, and when installed in the third mounting space S3, it is compressed by the second cover horizontal portion 32 and the fourth cover horizontal portion 34, making it difficult to come off the third mounting space S3.

[0042] Furthermore, a concave recess 48 is formed on the surface of the vertical portion 42 of the electronic device packing 4 that is opposite the second horizontal portion 43, facing the second horizontal portion 43. This recess 48 is intended to release excess material from the second horizontal portion 43 when the second horizontal portion 43 is compressed by the second cover horizontal portion 32 and the fourth cover horizontal portion 34, and is formed to a size corresponding to the amount of compression of the second horizontal portion 43. In this embodiment, only one first deformation portion 44 is provided on the surface (bottom surface) of the horizontal portion 41 that is opposite the vertical portion 42.

[0043] According to this embodiment, when the second lateral portion 43 of the electronic device packing 4 is installed in the third mounting space S3, the second lateral portion 43 is compressed by the second cover horizontal portion 32 and the fourth cover horizontal portion 34. As a result, the second lateral portion 43 is firmly installed in the third mounting space S3, and even if the first deformable portion 44 is pulled towards the opening horizontal portion 21 when removing the cover 3 from the housing 2, it is possible to prevent the electronic device packing 4 from coming off the cover 3. As a result, it is no longer necessary to reattach the electronic device packing 4 to the cover 3, improving work efficiency.

[0044] Furthermore, since there is no need to provide a third deformable portion 46 on the second lateral portion 43, the packing 4 for electronic equipment can be simplified and manufacturing costs can be reduced. Moreover, since the thickness of the second lateral portion 43 is formed to decrease from the vertical portion 42 side toward the free end side, the second lateral portion 43 can be easily installed in the third mounting space S3.

[0045] Although embodiments of this invention have been described above, the specific configuration is not limited to the embodiments described above, and any design changes, etc., that do not depart from the gist of this invention are also included. For example, in the above embodiment, the packing 4 for the electronic equipment is formed in an annular shape, but it may be formed in a string-like or rod-like shape depending on the shape of the opening edge 2A of the housing 2 or the outer peripheral edge 3A of the cover 3. Also, in the state where the tightening with the bolts 5 is completed, the horizontal opening portion 21 and the first horizontal cover portion 31 are in contact, but the vertical opening portion 22 and the third horizontal cover portion 33 may be in contact. Although the case in which the electronic equipment is a marine radar device 100 has been described, it goes without saying that it can also be applied to other electronic equipment installed outdoors. Furthermore, although a recess 48 like that in Embodiment 2 is not shown in Figure 1 of Embodiment 1, it may be provided depending on the amount of deformation of the third deformed portion 46. [Explanation of Symbols]

[0046] 1, 10 Sealed structure for electronic equipment 2 cabinets 20 aperture 2A Opening edge 21 Opening horizontal part 22 Vertical opening 3 Cover 3A Outer edge 31. First horizontal cover section 32 Second cover horizontal section 33 Third cover horizontal section 34. Fourth cover horizontal section S1 First mounting space S2 Second mounting space S3 Third mounting space 4. Packing for electronic equipment 41 Side view 42 Vertical section 43 Second side 44 First deformation section 45 Second deformation section 46 Third deformation part 5 volts 100 Marine radar equipment (electronic equipment)

Claims

1. A sealing structure for electronic equipment, wherein an electronic equipment packing is interposed between the opening edge of an opening provided in the housing of the electronic equipment and the outer peripheral edge of a cover that closes the opening, and the cover is bolted in such a way that it is pressed against the opening side, In a plane perpendicular to the direction in which the opening edge extends, the opening edge comprises a horizontal opening portion extending toward the cover side and a vertical opening portion extending substantially perpendicularly from the horizontal opening portion toward the outside of the opening. On a plane perpendicular to the direction in which the outer edge of the cover extends, the outer edge of the cover comprises a first horizontal cover portion extending toward the opening, a second horizontal cover portion located further out of the cover than the first horizontal cover portion and extending substantially parallel to the first horizontal cover portion, and a third horizontal cover portion located further out of the cover than the second horizontal cover portion and extending toward the opening, wherein the space between the first horizontal cover portion and the second horizontal cover portion is defined as the first mounting space, and the space from the third horizontal cover portion toward the inside of the cover is defined as the second mounting space. The packing for the electronic device is elongated, has a substantially L-shaped cross-section perpendicular to its longitudinal direction, and comprises a horizontal portion extending laterally and a vertical portion extending vertically, the free end of the horizontal portion being fitted into a first mounting space on the outer periphery of the cover, the vertical portion being located in a second mounting space on the outer periphery of the cover, a first deformable portion being provided on the side of the horizontal portion opposite to the vertical portion, located outside the first mounting space and extending in a direction substantially perpendicular to the pressing direction, and a second deformable portion being provided on the vertical portion protruding toward the opening side. When the cover is pressed against the opening, the first deformable portion is bent by the horizontal portion of the opening edge, and when the bolt is tightened, the second mounting space is closed by the horizontal portion of the opening, the first deformable portion is pressed and deformed by the horizontal portion of the opening, and the second deformable portion is pressed and deformed by the vertical portion of the opening edge. A sealed structure for electronic equipment characterized by the following features.

2. On a plane perpendicular to the direction in which the outer peripheral edge of the cover extends, a fourth horizontal cover portion extending toward the opening is provided between the second horizontal cover portion and the third horizontal cover portion, and the space between the second horizontal cover portion and the fourth horizontal cover portion is defined as the third mounting space. The packing for the electronic device comprises a second horizontal portion extending substantially parallel to the horizontal portion from the vertical portion and fitted into the third mounting space, and a third deformable portion projecting outward is provided on at least one of the upper and lower surfaces of the second horizontal portion. With the second horizontal portion mounted in the third mounting space, the third deformable portion is pressed and deformed by at least one of the second horizontal cover portion and the fourth horizontal cover portion. The sealed structure for electronic equipment according to feature 1.

3. The invention comprises a plurality of the first deformation portion and the second deformation portion. A sealed structure for electronic equipment according to either claim 1 or 2.

4. On a plane perpendicular to the direction in which the outer peripheral edge of the cover extends, a fourth horizontal cover portion extending toward the opening is provided between the second horizontal cover portion and the third horizontal cover portion, and the space between the second horizontal cover portion and the fourth horizontal cover portion is defined as the third mounting space. The packing for the electronic device comprises a second horizontal portion extending substantially parallel to the horizontal portion from the vertical portion and fitted into the third mounting space, wherein the second horizontal portion is formed such that its thickness decreases from the vertical portion side toward the free end side. With the second lateral portion mounted in the third mounting space, the second lateral portion is compressed by the second horizontal cover portion and the fourth horizontal cover portion. The sealed structure for electronic equipment according to feature 1.

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