Portable device

Abstract

To provide a portable device that prevents liquid from entering the inside of a connector.SOLUTION: A portable device 10 includes a housing 14 in which electrical equipment is stored, a connector portion 18 provided on an outer wall 24 of the housing 14 and exposed to the outside of the housing 14, and a ventilation portion 20 provided in the housing 14. The portable device 10 includes a receiving groove 68 provided below the ventilation portion 20 that connects the outside of the housing 14 with a storage portion 22, and that is capable of receiving liquid L adhering to the surface of the housing 14 including the outer wall 24.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to portable devices. [Background technology]

[0002] Patent Document 1 discloses a medical device for extracorporeal blood circulation. The medical device includes a controller, which is connected to medical devices via wiring. When power is supplied to the controller, the controller controls the operation of the medical devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5851616 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, when the medical device of Patent Document 1 is transported and used, or when the medical device is used in a usage environment such as a medical site, liquid may adhere to the outer surface of the controller. In this case, if the connector for connecting the wiring is exposed to the outside of the controller, it is desirable to prevent liquid from entering the connector.

[0005] The present invention aims to solve the above-mentioned problems. [Means for solving the problem]

[0006] (1) An aspect of the present invention is a portable device comprising: a housing having a storage section capable of storing electrical equipment and an outer wall surrounding the storage section; a connector section provided on the outer wall of the housing and exposed to the outside of the housing, to which wiring connected to the electrical equipment can be connected; a ventilation section provided on the outer wall of the housing and having a vent hole that connects the outside of the housing to the storage section; and a liquid guide structure, wherein the liquid guide structure has a receiving groove at a lower part of the ventilation section that can receive liquid that has passed through the ventilation section.

[0007] According to this portable device, the liquid that has passed through the ventilation section is received by the receiving groove of the liquid guide structure, thereby preventing the liquid from seeping into the connector section that is provided on the outer wall of the housing and exposed to the outside.

[0008] (2) In the portable device described in (1) above, the outer wall of the housing has a first wall portion in which the ventilation hole of the ventilation section is provided, and a second wall portion in which the connector section is provided and is positioned horizontally offset from the first wall portion toward the inside of the housing, and the liquid guide structure may guide the liquid to the surface of the second wall portion and circulate it along the surface of the second wall portion.

[0009] With this configuration, the liquid is allowed to flow along the second wall portion on which the connector portion is provided, thereby preventing the liquid from entering the inside of the connector portion.

[0010] (3) In the portable device described in (2) above, the liquid guide structure may include a first guide portion facing the air vent and arranged along the first wall portion, and a second guide portion extending in a direction intersecting the first wall portion and extending from the first wall portion toward the second wall portion, and the second guide portion may be arranged below the first guide portion.

[0011] With this configuration, when liquid enters the housing through the ventilation hole, the liquid is guided downward by the first guide portion, and then the second guide portion can effectively guide the liquid toward the second wall portion.

[0012] (4) In the portable device described in (3) above, the first guide portion may include an inclined portion that is inclined downward toward the first wall portion.

[0013] With this configuration, liquid that has entered the housing through the ventilation hole can be effectively guided downward and away from the electrical equipment by the inclined portion of the first guide portion.

[0014] (5) In the portable device described in any one of (1) to (4) above, the outer wall of the housing may include a first wall portion in which the ventilation hole of the ventilation section is provided, and a second wall portion in which the connector section is provided and is positioned horizontally offset from the first wall portion toward the inside of the housing, and may have a lower wall portion extending from the lower part of the ventilation section toward the second wall portion, and the liquid guide structure may include a protrusion protruding downward from the lower part of the ventilation section.

[0015] With this configuration, the liquid that moves downward along the surface of the first wall is collected at the downward protrusion, which effectively controls the position where the liquid falls downward from the liquid guide structure, effectively preventing the liquid from adhering to the underside of the lower wall and falling onto the second wall.

[0016] (6) In the portable device described in any one of (2) to (4) above, the first wall portion and the second wall portion may be arranged on one horizontal side of the housing, and the ventilation portion may be arranged above the connector portion.

[0017] With this configuration, when liquid adhering to the surface of the housing seeps into the interior through the ventilation section, the liquid guide structure can effectively guide the liquid to the surface of the second wall section located below the ventilation section.

[0018] (7) In the portable device described in any one of (2) to (4) above, at least a part of the connector portion may protrude outward from the second wall portion of the housing.

[0019] With this configuration, when liquid is introduced onto the surface of the second wall portion, the liquid is less likely to seep into the inside of the connector portion because part of the connector portion protrudes from the surface. [Effects of the Invention]

[0020] According to the present invention, when liquid adheres to the outer wall of the housing of a portable device, the liquid that passes through the ventilation section is received by the receiving groove of the liquid guide structure, thereby preventing the liquid from entering the connector section that is provided on the outer wall of the housing and exposed to the outside. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is an overall cross-sectional view showing a portable device according to an embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory diagram showing a liquid guide structure of the portable device shown in FIG. [Figure 3] FIG. 3 is a rear view of the portable device shown in FIG. [Figure 4] FIG. 4 is a perspective cross-sectional view showing the rear surface of the portable device. [Figure 5] FIG. 5 is an explanatory diagram showing a state in which the portable device is tilted. DETAILED DESCRIPTION OF THE INVENTION

[0022] As shown in FIG. 1, a portable device 10 according to this embodiment can be moved by a user. The portable device 10 is, for example, a medical device used for medical purposes. Specifically, the portable device 10 is a control unit for an extracorporeal membrane oxygenation (ECMO) system having an oxygenator and a pump. However, the portable device 10 is not limited to an extracorporeal membrane oxygenation (ECMO) control unit. The portable device 10 may also be, for example, a syringe pump, a vital sign measuring device such as an electrocardiograph or a blood pressure monitor, a monitor, or the like.

[0023] The portable device 10 includes a housing 14, an electrical device 16 housed inside the housing 14, a connector 18 to which wiring C connected to the electrical device 16 can be connected, and a ventilation section 20 that connects the outside and inside of the housing 14. The portable device 10 is used while placed on a floor or other surface (not shown). Hereinafter, the direction of the front surface 14F of the portable device 10 shown in FIG. 1 will be referred to as the front (the direction of arrow A), and the direction of the rear surface 14R of the portable device 10 will be referred to as the rear (the direction of arrow B). A liquid guide structure 60 that can guide liquid L (see FIG. 2) adhering to the surface of the housing 14 is disposed on the rear surface 14R of the housing 14. The liquid L may be, for example, moisture such as rain that adheres to the portable device 10 when it is moved, or a patient's body fluids that adhere to the portable device 10 when it is used in a medical setting.

[0024] The housing 14 has a storage section 22 capable of storing the electrical equipment 16 and an outer wall 24 surrounding the storage section 22. The housing 14 is a box-shaped body having the storage section 22 surrounded by the outer wall 24. The outer wall 24 of the housing 14 has a pair of side walls 24S (see FIG. 1 ), a top wall 24U provided at the upper part of the side walls 24S, a bottom wall 24B provided at the lower part of the side walls 24S, and a rear wall 24R provided behind the side walls 24S (in the direction of arrow B). The pair of side walls 24S connects the front surface 14F of the housing 14, on which the display 26 is disposed, to the rear surface 14R, on which the connector unit 18 is disposed. The top wall 24U is provided with a handle 28 that can be held by a user. The handle 28 protrudes upward from the top wall 24U. The user can move the portable device 10 while holding the handle 28. The bottom wall 24B is provided with a plurality of legs 30. The legs 30 protrude downward from the bottom wall 24B of the housing 14, and their lower ends are placed in contact with a floor surface or the like (not shown).

[0025] 2, the rear wall 24R of the outer wall 24 forms the back surface 14R of the housing 14. When the portable device 10 is placed on a floor or the like and in use, the rear wall 24R extends in the vertical direction (the direction of arrow V). The rear wall 24R includes a first wall portion 321 in which the ventilation section 20 is provided, and a second wall portion 322 in which the connector section 18 is provided. The first wall portion 321 and the second wall portion 322 are respectively arranged on the rear side (the direction of arrow B) which is the same direction in the housing 14. That is, the first wall portion 321 and the second wall portion 322 are arranged on one side in the horizontal direction (the direction of arrow B) in the housing 14.

[0026] The first wall portion 321 is disposed rearward in the housing 14. The second wall portion 322 is disposed below the first wall portion 321. The second wall portion 322 is disposed parallel to the first wall portion 321 and is disposed at a position shifted horizontally (in the direction of arrow A) toward the inside of the housing 14 relative to the first wall portion 321. In other words, the second wall portion 322 is disposed offset a predetermined distance forward relative to the first wall portion 321. The lower end of the first wall portion 321 and the upper end of the second wall portion 322 are connected by a mounting wall 34. The mounting wall 34 extends horizontally from the first wall portion 321 toward the second wall portion 322.

[0027] 1, the electrical device 16 is stored and fixed in the storage section 22 of the housing 14. The electrical device 16 is, for example, a controller. The electrical device 16 is electrically connected to a display 26 and a connector section 18. The display 26 can display, for example, the operating status of the electrical device 16 and the operating status of other devices connected to the electrical device 16 via the connector section 18.

[0028] The connector unit 18 is provided on the second wall portion 322 of the rear wall 24R of the housing 14. A wiring C can be connected to the connector unit 18. As shown in FIG. 3, the ventilation portion 20 is disposed above the connector unit 18. A portion of the connector unit 18 is exposed to the outside of the housing 14. The connector unit 18 has a plurality of first connectors 36 to which a first cable C1 (see FIG. 1) which is the wiring C is connected, and a second connector 38 to which a second cable C2 (see FIG. 1) which is the wiring C is connected. The second cable C2 is a power cable. As shown in FIG. 1, the first and second connectors 36, 38 are fixed in a state in which they penetrate the second wall portion 322. When the second wall portion 322 is viewed from the rear, the plurality of first connectors 36 are arranged parallel to each other and spaced apart (see FIG. 3). Note that the number of first connectors 36 is not limited to a plurality. As shown in FIG. 2, the first connector 36 has a first connection end portion 361 to which the first cable C1 is connected. The first connection end 361 protrudes rearward (in the direction of arrow B) from the outer surface 322A of the second wall portion 322. The outer surface 322A of the second wall portion 322 is the surface of the second wall portion 322 that is exposed to the outside of the housing 14. The first connection end 361 is exposed to the outside of the housing 14.

[0029] As shown in FIG. 3, the second connector 38 is disposed below the first connector 36. As shown in FIG. 1, the second connector 38 has a second connection end 381 to which the second cable C2 is connected. The second connection end 381 protrudes rearward (in the direction of arrow B) from the outer surface 322A of the second wall portion 322. The second connection end 381 is exposed to the outside of the housing 14. Note that the first and second connectors 36, 38 are not limited to a configuration in which only parts thereof, the first and second connection ends 361, 381, protrude outward from the second wall portion 322 of the housing 14. For example, the entire first and second connectors 36, 38 may protrude outward (rearward) from the second wall portion 322 of the housing 14.

[0030] The first and second connectors 36, 38 are each electrically connected to the electrical equipment 16 and the display 26 via lead wires 40 inside the housing 14. Power supplied through the second cable C2 is supplied to the electrical equipment 16 and the display 26 via the second connector 38 and the lead wires 40.

[0031] As shown in FIG. 2, the ventilation section 20 is disposed above the connector section 18. The ventilation section 20 has a ventilation member 42 attached to the first wall section 321. The ventilation member 42 is attached to an opening 44 of the first wall section 321. The ventilation section 20 faces the electrical equipment 16 in the horizontal direction (the direction of arrows A and B) inside the housing 14 (see FIG. 1). A fan device 46 for cooling the electrical equipment 16 is provided between the ventilation section 20 and the electrical equipment 16. The fan device 46 includes a housing 461 and a fan 462 rotatably provided inside the housing 461, and is fixed to the mounting wall 34 of the housing 14. The fan 462 of the fan device 46 is driven to rotate by power supply. The rotation of the fan 462 allows air inside the storage section 22 to be exhausted to the outside of the housing 14 through a vent 48 in the ventilation section 20. It should be noted that the fan device 46 is not limited to a configuration that can exhaust air from inside the storage section 22. For example, the fan device 46 may be configured to be able to draw air from outside the housing 14 into the storage section 22 through the ventilation section 20 by rotating the fan 462.

[0032] The ventilation member 42 is formed from a plate material. A portion of the ventilation member 42 is provided in the storage section 22 of the housing 14. The ventilation member 42 includes a main body section 421 having a ventilation hole 48, and a lower wall section 422 extending horizontally (in the direction of arrows A and B) from the bottom of the main body section 421. Note that the ventilation member 42 is not limited to being formed from a plate material.

[0033] The main body 421 is formed in a flat plate shape. The main body 421 is provided along the first wall 321 of the housing 14. As shown in FIG. 3, the main body 421 covers the opening 44 of the first wall 321. A plurality of ventilation holes 48 are provided along the vertical direction (direction of arrow V) of the main body 421. The plurality of ventilation holes 48 are arranged in parallel in the vertical direction of the main body 421. The ventilation holes 48 extend along the width direction of the main body 421, which is perpendicular to the vertical direction. Each ventilation hole 48 has a rectangular shape that is larger in the width direction than in the vertical direction of the main body 421. As shown in FIG. 2, each ventilation hole 48 penetrates the main body 421 in the thickness direction. The ventilation holes 48 connect the outside of the housing 14 to the storage section 22 of the housing 14. Note that the number of ventilation holes 48 is not limited to a plurality. For example, the main body 421 may be configured to have a single ventilation hole 48.

[0034] As shown in FIG. 2, the main body 421 has a protruding portion 50 that protrudes rearward (in the direction of arrow B). The protruding portion 50 is provided at the bottom of the main body 421. The protruding portion 50 is located lower than the lowest-located ventilation opening 48 (see FIG. 3). The protruding portion 50 is provided parallel to the main body 421. The protruding portion 50 is formed at a position shifted rearward (in the direction of arrow B) from the main body 421. When the ventilation member 42 is attached to the opening 44 of the first wall 321, the protruding portion 50 is located rearward from the surface of the first wall 321.

[0035] As shown in Fig. 3, a slit 52 is provided between the protruding portion 50 and the main body portion 421. The slit 52 is formed parallel to the ventilation holes 48 and penetrates the main body portion 421 in the thickness direction (see Fig. 2). The width direction length of the slit 52 is longer than the width direction length of each ventilation hole 48. The slit 52 is positioned lower than the ventilation hole 48 positioned lowest.

[0036] The overhanging portion 50 has a pair of protrusions 501. The pair of protrusions 501 protrude outward in the width direction from the widthwise edges of the main body 421 (protrusion 66). When the ventilation member 42 is attached to the opening 44 of the first wall 321, the pair of protrusions 501 abut against the surface of the first wall 321. As shown in FIG. 3, the pair of protrusions 501 abut against the surface of the first wall 321, preventing the main body 421 from moving forward (toward the storage section 22, in the direction of arrow A). The main body 421 is held in a state in which it blocks the opening 44. At this time, the surface of the first wall 321 and the main body 421 of the ventilation member 42 are substantially flush with each other (see FIG. 2).

[0037] As shown in FIG. 2 , the lower wall portion 422 is connected to the lower portion of the main body portion 421 and extends horizontally (in the direction of arrows A and B) toward the inside of the housing 14. The lower wall portion 422 extends from the lower portion of the ventilation portion 20 toward the second wall portion 322. That is, the lower wall portion 422 extends horizontally from the first wall portion 321 toward the second wall portion 322. The lower wall portion 422 is disposed below the mounting wall 34 of the housing 14. The lower wall portion 422 is fastened to the mounting wall 34, which is provided inside the housing 14 and extends horizontally, by fastening members 54. The lower wall portion 422 and the mounting wall 34 are disposed approximately parallel to each other and spaced apart in the up-down direction of the housing 14. A first flow path 561 is provided between the lower wall portion 422 and the mounting wall 34. A first end portion 422a of the lower wall portion 422 is connected to the protruding portion 50 of the main body portion 421. The second end 422b of the lower wall 422 is the end opposite to the first end 422a in the horizontal direction. The second end 422b faces the second wall 322. The second end 422b and the second wall 322 are spaced apart in the horizontal direction (the direction of arrows A and B). A second flow path 562 is provided between the second end 422b and the surface of the second wall 322. The first flow path 561 and the second flow path 562 communicate with each other.

[0038] As shown in FIG. 4, the portable device 10 has a liquid guide structure 60 that guides the liquid L adhering to the surface of the housing 14. The liquid guide structure 60 guides the liquid L adhering to the outer wall 24 of the housing 14 to the surface of the second wall portion 322, and causes the liquid L to flow along the surface of the second wall portion 322. The liquid guide structure 60 guides the liquid L adhering to the ventilation portion 20 and above the ventilation portion 20 to the outer surface 322A of the second wall portion 322. The liquid guide structure 60 includes a first guide portion 601 and a second guide portion 602.

[0039] The first guide portions 601 are provided in the ventilation section 20 and face the respective ventilation holes 48. The first guide portions 601 are provided between the ventilation holes 48 of the main body portion 421 and the electrical equipment 16. The first guide portions 601 are provided between the main body portion 421 and the fan device 46. The first guide portions 601 are arranged along the first wall portion 321 and the main body portion 421. The first guide portions 601 are arranged spaced apart forward (in the direction of arrow A) from the main body portion 421 of the ventilation member 42. The first guide portions 601 include an inclined portion 62 that is inclined downward toward the first wall portion 321. The inclined portion 62 is inclined downward toward the first wall portion 321.

[0040] Below the first guide portion 601 is a housing side guide portion 64. The housing side guide portion 64 is provided on the mounting wall 34 of the housing 14. The housing side guide portion 64 is positioned lower than the first guide portion 601, which is positioned at the lowest. The housing side guide portion 64 is connected to the rear end of the mounting wall 34 and is inclined upward so as to face in a direction away from the first wall portion 321. The rear end of the housing side guide portion 64 is positioned rearward of the first guide portion 601. The rear end of the housing side guide portion 64 faces the protrusion portion 50.

[0041] The second guide portion 602 is provided at the lower part of the ventilation member 42. The second guide portion 602 is disposed below the first guide portion 601. The second guide portion 602 is the lower wall portion 422 of the ventilation member 42. The second guide portion 602 extends in a direction perpendicular to (intersecting with) the first wall portion 321.

[0042] The liquid guide structure 60 further includes a protrusion 66 and a receiving groove 68. The protrusion 66 is provided at the bottom of the ventilation section 20 and protrudes downward from the second guide section 602 (lower wall section 422). The protrusion 66 is part of the overhanging section 50 of the main body section 421. The protrusion 66 is located at the rearmost end of the ventilation section 20. When the ventilation member 42 is formed from a plate material, the protrusion 66 is the bent portion when the overhanging section 50 of the main body section 421 and the lower wall section 422 are bent at a substantially right angle.

[0043] The receiving groove 68 is formed to be able to receive the liquid L that has passed through the ventilation portion 20. The receiving groove 68 is provided in the lower part of the ventilation portion 20. The receiving groove 68 is provided between the overhanging portion 50 and the rear end of the housing-side guide portion 64. The receiving groove 68 is a groove that opens upward and is closed downward. The receiving groove 68 is disposed below the slit 52 and below the surface of the main body portion 421. The receiving groove 68 and the outside (surface) of the ventilation member 42 communicate with each other through the slit 52. The receiving groove 68 has a space in the horizontal direction of the housing 14. The receiving groove 68 extends along the width direction of the ventilation member 42. The receiving groove 68 communicates with the first flow path 561.

[0044] The portable device 10 of this embodiment has the above-described configuration. Next, a case where liquid L adheres to the portable device 10 will be described. As shown in FIG. 1, when the portable device 10 is used, the portable device 10 is used with the legs 30 placed on the floor or the like. In this case, the rear wall 24R of the housing 14 is disposed so as to extend in the vertical direction. The top wall 24U and bottom wall 24B of the housing 14 are disposed substantially horizontally. Below, a case where moisture L as liquid L adheres to the outer wall 24 of the portable device 10 will be described. For example, moisture may adhere to the outer wall 24 of the portable device 10 when it rains when the portable device 10 is moved outdoors.

[0045] 4, when moisture L adheres to the outer wall 24 of the housing 14, the moisture L moves downward by gravity along the surface of the outer wall 24. The first wall portion 321 of the rear wall 24R (outer wall 24) contains moisture L that is directly adhered to the surface of the first wall portion 321 and moisture L that has moved from the upper wall 24U to the surface of the first wall portion 321.

[0046] Moisture L on the surface of the first wall portion 321 moves downward from the upper part of the first wall portion 321 toward the ventilation portion 20 due to gravity. After the moisture L reaches the surface of the ventilation member 42 of the ventilation portion 20, the moisture L is separated into first moisture L1 that flows along the surface (outer surface) of the main body 421 of the ventilation member 42, and second moisture L2 that flows from the surface of the ventilation member 42 into the inside of the housing 14 through each ventilation hole 48. In other words, the moisture L that flows along the outside without penetrating into the inside of the housing 14 is the first moisture L1.

[0047] The first moisture L1 moves downward on the surface of the main body 421, outward in the width direction of each vent hole 48. After moving downward along the surface of the main body 421, the first moisture L1 falls from the lower end of the main body 421 through the slits 52 and into the receiving groove 68. As shown in FIG. 2 , the surface of the main body 421 and the receiving groove 68 are in communication with each other via the slits 52, and therefore the first moisture L1 falls from the lower end of the main body 421 in the direction of gravity and is received within the space of the receiving groove 68. The receiving groove 68 and the slits 52 extend in the width direction of the ventilation member 42, and therefore the first moisture L1 flowing in the main body 421 outward in the width direction of the vent holes 48 flows into the receiving groove 68 through the slits 52.

[0048] As shown in FIG. 4 , the second moisture L2 moves from above to below each ventilation hole 48 on the surface of the main body 421, and then flows into the open ventilation hole 48 into the housing 14. The second moisture L2 is guided downward along the inclined portion 62 of each first guide portion 601 of the ventilation member 42. The second moisture L2 moves toward the rear end of each first guide portion 601, and then falls downward from the rear end due to gravity. The second moisture L2 falls downward through the gap between each first guide portion 601 and the main body 421. The second moisture L2 is received by the housing-side guide portion 64. After flowing rearward along the housing-side guide portion 64, the second moisture L2 flows downward from the rear end of the housing-side guide portion 64 and flows into the receiving groove 68.

[0049] The first moisture L1 flowing along the surface of the main body 421 of the ventilation member 42 and the second moisture L2 penetrating the interior of the ventilation member 42 and flowing downward by the first guide portion 601 are collected in the receiving groove 68 of the liquid guide structure 60. The first moisture L1 and the second moisture L2 that flow into the receiving groove 68 move from the receiving groove 68 to the first flow path 561 between the second guide portion 602 and the mounting wall 34, and flow horizontally along the first flow path 561 toward the front of the housing 14 (in the direction of arrow A). The first and second moisture L1, L2 are discharged downward from the front end of the first flow path 561 through the second flow path 562. The first and second moisture L1, L2 (moisture L) flow downward from the second flow path 562 along the second wall portion 322. The moisture L flows downward along the surface of the outer surface 322A of the second wall portion 322. At this time, the moisture L flows downward between the first connector 36 (first connection end 361) and the second connector 38 (second connection end 381) that protrude relative to the second wall portion 322. After flowing to the lower end of the second wall portion 322, the moisture L falls below the housing 14, for example, and is discharged to the outside of the housing 14.

[0050] Some of the first moisture L1 may move downward along the protruding portion 50 without flowing into the receiving groove 68 through the slit 52. Furthermore, moisture may adhere directly to the surface of the protruding portion 50 of the ventilation member 42 without adhering to the first wall portion 321 (hereinafter, part of the first moisture L1, the moisture directly adhering to the surface of the protruding portion 50, will be referred to as third moisture L3). After moving downward along the surface of the protruding portion 50, the third moisture L3 collects at the lower end of the protruding portion 66, as shown in FIG. 2 . The third moisture L3 gradually collects at the lower end of the protruding portion 66, forming droplets, which then fall downward from the lower end of the protruding portion 66 due to their own weight. The protruding portion 66, which protrudes downward from the second guide portion 602, prevents the third moisture L3 from adhering to the lower surface of the second guide portion 602.

[0051] Next, when a user grips the handle 28 to move the portable device 10, moisture may adhere to the outer wall 24 of the housing 14, causing the portable device 10 to tilt relative to the intended use state of the portable device 10 placed on the floor, as shown in Fig. 5. For example, this may occur when the user moves the portable device 10 outdoors in the rain.

[0052] For example, when the portable device 10 is tilted so that the rear wall 24R of the housing 14 faces upward, the rear wall 24R faces upward in the direction of gravity, making it easier for moisture (liquid L) falling from above to adhere to the rear wall 24R and the ventilation section 20. Below, we will explain the case where the rear wall 24R of the housing 14 is tilted at an angle θ with respect to an imaginary line VL extending vertically. The angle θ is, for example, 15°. 15° is the angle θ based on the waterproof rating (IPX2) standard (JIS C0920-1993).

[0053] The first moisture L1 adhering to the first wall portion 321 of the rear wall 24R and the surface of the ventilation member 42 moves downward along the surface of the ventilation member 42, from the overhanging portion 50 to the protrusion 66. The moisture collected at the lower end of the protrusion 66 falls vertically downward from the protrusion 66 due to gravity. When the housing 14 is tilted so that the rear wall 24R has an inclination angle θ, the vertically downward portion of the lower end of the protrusion 66 does not face the second wall portion 322 (the first connection end 361 of the first connector 36 and the second connection end 381 of the second connector 38). The vertical line extending vertically downward from the lower end of the protrusion 66 is positioned rearward (in the direction of arrow B) of the lower end of the second wall portion 322.

[0054] Therefore, even when the portable device 10 is tilted at an inclination angle θ so that the rear wall 24R faces upward, the moisture (third moisture L3) dropping from the lower end of the protruding portion 66 does not adhere to the second wall portion 322, but falls behind the lower end of the second wall portion 322 (in the direction of arrow B). The moisture L (liquid L) dropping from the lower end of the protruding portion 66 does not adhere to the second wall portion 322.

[0055] The liquid guide structure 60 is not limited to a configuration in which the second guide portion 602 is disposed to face the second wall portion 322 on which the connector portion 18 is provided, and the second guide portion 602 discharges the liquid L to the second wall portion 322. For example, the second guide portion 602 may guide the liquid L adhering to the outer wall 24 of the housing 14 so as to be discharged to a location different from the second wall portion 322 (the side wall 24S side of the housing 14).

[0056] This embodiment has the following advantages.

[0057] 2, the portable device 10 includes a housing 14 having a storage section 22 capable of storing electrical equipment 16, a connector section 18 provided on an outer wall 24 of the housing 14 and exposed to the outside of the housing 14, and a ventilation section 20 having a ventilation hole 48 provided on the outer wall 24 to connect the outside of the housing 14 with the storage section 22. A liquid guide structure 60 of the portable device 10 includes a receiving groove 68 capable of receiving liquid L adhering to the surface of the housing 14.

[0058] As a result, when liquid L adheres to the outer wall 24 of the housing 14 of the portable device 10, the liquid L is received in the receiving groove 68, thereby preventing the liquid L from penetrating into the connector portion 18 provided on the outer wall 24 of the housing 14.

[0059] The outer wall 24 (rear wall 24R) of the housing 14 has a first wall portion 321 in which the ventilation hole 48 of the ventilation unit 20 is provided, and a second wall portion 322 provided at a position horizontally shifted toward the inside of the housing 14 relative to the first wall portion 321. The connector portion 18 is provided on the second wall portion 322. The liquid guide structure 60 guides the liquid L to the surface of the second wall portion 322 and causes the liquid L to flow along the surface of the second wall portion 322. In this way, by causing the liquid L to flow along the second wall portion 322 in which the connector portion 18 is provided, infiltration of the liquid L into the inside of the connector portion 18 is suppressed.

[0060] 4, the liquid guide structure 60 includes a first guide portion 601 that faces the vent hole 48 and is disposed along the first wall portion 321, and a second guide portion 602 that extends from the first wall portion 321 toward the second wall portion 322. The second guide portion 602 is disposed below the first guide portion 601.

[0061] As a result, when liquid L enters the housing 14 through the ventilation hole 48, the liquid L is guided downward by the first guide portion 601, and then the liquid L can be effectively guided toward the second wall portion 322 by the second guide portion 602.

[0062] 4, the first guide portion 601 has an inclined portion 62 that is inclined downward toward the first wall portion 321. This allows the inclined portion 62 of the first guide portion 601 to effectively guide the liquid L that has entered the housing 14 through the ventilation opening 48 downward and in a direction away from the electrical device 16.

[0063] The liquid guide structure 60 includes a protrusion 66 that protrudes downward from a lower wall portion 422 that is provided at the bottom of the ventilation portion 20 and extends horizontally from the bottom. As a result, the liquid L that moves downward along the surface of the first wall portion 321 is collected by the protrusion 66, making it possible to effectively control the position from which the liquid L falls downward from the liquid guide structure 60. This makes it possible to prevent the liquid L from adhering to the underside of the lower wall portion 422 and falling.

[0064] The first wall 321 and the second wall 322 are disposed on one side (rear) of the housing 14 in the horizontal direction, and the ventilation section 20 is disposed above the connector section 18. As a result, when the liquid L adhering to the outer wall 24 of the housing 14 enters the inside of the housing 14 through the ventilation opening 48 of the ventilation section 20, the liquid L can be effectively guided to the surface of the second wall 322 disposed below the ventilation section 20 by the liquid guide structure 60.

[0065] 1, a portion of the connector portion 18 protrudes rearward (outward) from the second wall portion 322 of the housing 14. As a result, when the liquid L is guided to the surface of the second wall portion 322 by the liquid guide structure 60, the liquid L is less likely to penetrate into the connector portion 18 because a portion of the connector portion 18 protrudes from the surface.

[0066] The present invention is not limited to the above disclosure, and various configurations can be adopted without departing from the gist of the present invention. [Explanation of symbols]

[0067] 10. Portable equipment 14...Housing 16...Electrical equipment 18...Connector part 20...Ventilation section 22...Storage area 24...Exterior wall 48...Ventilation hole 68...receiving groove C…Wiring L…Liquid (moisture)

Claims

1. a housing having a storage section capable of storing electrical equipment and an outer wall surrounding the storage section; a connector portion provided on the outer wall of the housing and exposed to the outside of the housing, to which wiring connected to the electrical device can be connected; a ventilation section provided on the outer wall of the housing and having a ventilation port that connects the outside of the housing with the storage section; A liquid guide structure; Equipped with The portable device, wherein the liquid guide structure has a receiving groove at a lower part of the ventilation part that can receive liquid that has passed through the ventilation part.

2. 2. The portable device according to claim 1, the outer wall of the housing includes a first wall portion in which the vent hole of the ventilation unit is provided; a second wall portion provided at a position horizontally shifted toward the inside of the housing relative to the first wall portion, and on which the connector portion is provided; and The portable device, wherein the liquid guide structure guides the liquid to the surface of the second wall portion and causes the liquid to flow along the surface of the second wall portion.

3. 3. The portable device according to claim 2, The liquid guide structure includes a first guide portion disposed along the first wall portion and facing the vent hole; a second guide portion extending in a direction intersecting the first wall portion and extending from the first wall portion toward the second wall portion; Equipped with The portable device, wherein the second guide portion is disposed below the first guide portion.

4. 4. The portable device according to claim 3, The portable device, wherein the first guide portion has an inclined portion that is inclined downward toward the first wall portion.

5. 2. The portable device according to claim 1, the outer wall of the housing includes a first wall portion in which the vent hole of the ventilation unit is provided; a second wall portion provided at a position horizontally shifted toward the inside of the housing relative to the first wall portion, and on which the connector portion is provided; Equipped with a lower wall portion extending from the lower portion of the ventilation portion toward the second wall portion; The portable device, wherein the liquid guide structure includes a protrusion that protrudes downward from the lower part of the ventilation part.

6. 3. The portable device according to claim 2, The portable device, wherein the first wall portion and the second wall portion are arranged on one side in the horizontal direction of the housing, and the ventilation portion is arranged above the connector portion.

7. 3. The portable device according to claim 2, At least a portion of the connector portion protrudes outward from the second wall portion of the housing.

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