Machine unit

Abstract

Provided is a machine unit capable of actively discharging water guided from the inside of a machine to a water outlet without increasing the possibility of foreign matter entering the inside of the machine. A machine unit (100) is provided with: a housing (70), the interior of which is divided into a waterproof region and a non-waterproof region; and a metal member (40) attached to the non-waterproof region of the housing (70), the housing (70) having: a drain port (761) provided on the non-waterproof region side and having a hole shape (76a) penetrating from the inner side (surface 72A) of the housing to the outer side (72B) in order to drain water immersed in the metal member (40); and a cutout part (761) in which a predetermined range on the outer periphery of the hole shape (76a) is cut off from the water outlet (761) in the passage direction to the outside (72B) of the housing (70).

Description

Technical Field

[0001] The present invention relates to a drainage structure for a machine unit. Background Art

[0002] As an existing technology of a machine unit having a drainage structure, there is a machine unit that can discharge the water that has entered the inside of the machine to the outside even if water has entered the inside of the machine (see, for example, Patent Document 1). Figure 1 、 2 FIG. is a diagram showing the drainage structure of the prior art. The vehicle-side connector 10 disclosed in this prior art includes a front housing (entrance housing 20) and a rear housing (holder 90). The front housing (entrance housing 20) has a connector fitting portion 22 in the shape of a front hood that opens forward, and a drain hole 25 is provided through the lower end portion of the inner wall 23 of the connector fitting portion 22; the rear housing (holder 90) is installed on the rear side of the front housing and has a drain pipe portion 97 that can discharge the water that has entered the connector fitting portion 22 to the outside of the vehicle. The rear housing has an inclined wall 95 that is located between the drain hole 25 and the drain pipe portion 97 and slopes downward as it faces the inside of the vehicle. The lower surface 95A of the inclined wall 95 is located at a position facing the drain hole 25.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: JP-A-2017-208227 Summary of the Invention

[0006] Technical Problem to be Solved by the Invention

[0007] However, depending on the size and arrangement position of the drain hole (hereinafter, also referred to as a drain outlet), water that should be discharged may adhere (accumulate) near the drain outlet of the drain hole. The phenomenon of accumulated drainage (hereinafter, also referred to as the accumulation phenomenon) refers to the suppression of water discharge from the drain hole, resulting in water remaining inside the housing. As a result, there is a possibility that metal components such as connectors (hereinafter, also referred to as metal parts) may rust.

[0008] Here, in order not to cause the accumulation phenomenon, there is also a case where if the drain outlet is made larger, the adhesion of water droplets is suppressed. However, there is also the following problem: If a larger drain outlet is formed, there is a possibility that foreign matter may easily enter the inside of the machine.

[0009] An object of the present invention is to provide a machine unit that can prevent foreign matter from easily entering the inside of the machine and actively discharge the water guided from the inside of the machine to the drain outlet in view of the above problems.

[0010] Technical Solution for Solving the Technical Problem

[0011] In order to solve the above problems, the machine unit of the present embodiment includes:

[0012] A housing, the interior of which is divided into a waterproof area and a non-waterproof area;

[0013] A metal component, which is installed in the non-waterproof area of the housing,

[0014] The housing has:

[0015] A drain port, which is provided on the non-waterproof area side and has a first hole shape that penetrates from the inside to the outside of the housing in order to drain the waterlogging of the metal component;

[0016] A notch portion, which is on the drain port and cuts off a predetermined range on the outer periphery of the first hole shape from the middle of the penetration direction to the outside of the housing.

[0017] Advantages of the Invention

[0018] According to the machine unit of the present embodiment, there is a notch portion on the drain port that cuts off a predetermined range on the outer periphery of the first hole shape from the middle of the penetration direction to the outside of the housing. By providing this notch portion, compared with the case where the notch portion is not provided, the diameter of the liquid generated by the retained waterlogging can be enlarged and it can be easily dripped. Therefore, the possibility of foreign matter mixing into the machine can be prevented from increasing, and the water entering the machine can be actively discharged to the drain port. Description of the Drawings

[0019] Figure 1 is a diagram for explaining the prior art of a machine unit having a drainage structure.

[0020] Figure 2 is a diagram for explaining the prior art of a machine unit having a drainage structure.

[0021] Figure 3 (a) is a perspective view showing an embodiment of a connector unit as an example of the machine unit of the present embodiment, Figure 3 (b) is a side view thereof, Figure 3 (c) is a front view thereof.

[0022] Figure 4 (a) is Figure 3 a rear view of the connector unit shown in (a), Figure 4 (b) is a cross-sectional view taken along the C-C line in (a). Figure 4 (a).

[0023] Figure 5 is Figure 3 an exploded perspective view of the connector unit shown in (a).

[0024] Figure 6 (a) is Figure 3 In the connector unit shown in (a), a perspective view showing a printed circuit board 35, Figure 6 (b) is Figure 6 a side view of the printed wiring board 30 shown in (a).

[0025] Figure 7 (a) is a perspective view of a printed circuit board 35 integrally formed with a waterproof sealing member 60. Figure 7 (b) is a cross-sectional view observed from the side of the interface connector 40 in the case where the connector unit 100 is cut along the plane including the boundary 30c.

[0026] Figure 8 (a) is a rear view showing an embodiment of the connector unit in the case where there is a rear case 80, Figure 8 (b) is along Figure 8 a cross-sectional view taken along line C-C in (a).

[0027] Fig. 9 a diagram for explaining the water guide member 28, Fig. 9 (a) shows Figure 3 in the A-A cross-sectional view in (c), from Figure 3 the region from the front panel portion 74 to the section line B-B in (b), Fig. 9 (b) is Figure 3 a B-B cross-sectional view in (b), Fig. 9 (c) is a perspective view of (b) observed from the upper left direction, Fig. 9 (b) is a perspective view of (b) observed from the lower left direction, Fig. 9 (d) is a perspective view of (b) observed from the lower left direction, Fig. 9 (b).

[0028] Fig.10 is Fig. 9 an enlarged view of the region indicated by the single-dot chain line in (a).

[0029] Fig.11 a diagram for explaining the drain ports 761, 762 and the notch portion 761 of the first embodiment. Fig.11 (a) is a side view of the connector unit 100, Fig.11 (b) is Fig.11 a Y-Y cross-sectional view of (a), Fig.11 (c) is Fig.11 in the X-X cross-sectional view of (a), corresponding to Fig.11 an enlarged view of the region surrounded by the single-dot chain line in (b), Fig.11 (d) is Fig.11 in the Z-Z cross-sectional view of (a), corresponding to Fig.11 an enlarged view of the region surrounded by the single-dot chain line in (b), Fig.11 (e) is Fig.11W - W cross-sectional view of (a) Fig.11 (f) is Fig.11 An enlarged view of the area indicated by the single-dot chain line in (e).

[0030] Fig.12 Is a schematic diagram corresponding to an example showing the influence of the notch portion 761 on drainage Fig.11 (f) Fig.12 In (a), the notch portion 761 is not provided Fig.12 In (b), the notch portion 761 is provided

[0031] Fig.13 Is a diagram for explaining the drain outlet and the notch portion of the modification of the first embodiment Fig.13 In (a), it schematically shows Fig.11 A schematic diagram of the vicinity of the drain outlets 761 and 762 in (a) Fig.13 (b) to Fig.13 (f) is Fig.13 A schematic diagram that similarly schematically shows the drain outlet and the notch portion of the modification as in (a)

[0032] Fig.14 Is a diagram for explaining the drain outlet and the notch portion of the second embodiment Fig.14 In (a), it is Fig.13 A schematic diagram that is similarly schematically shown as in (a) Fig.14 In (b), Fig.14 The drain outlets 761 and 762 in (a) are extracted Fig.14 In (c), it is a U - U cross-sectional view Fig.14 In (d), it is a V - V cross-sectional view Detailed implementation mode

[0033] <First Embodiment>

[0034] Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. In this description, the case where a connector unit is used as an example of a machine unit will be described. However, in the present invention, for a machine unit having a metal component on the non-waterproof area side as described later, its type is not particularly limited to a connector unit, and it may also be other machine units. It should be noted that in the following description, structural parts having the same function are denoted by the same reference numerals, and repeated descriptions are omitted

[0035] Figure 3 In (a), it is a perspective view showing an embodiment of a connector unit as an example of a machine unit of the present embodiment Figure 3 In (b), it is a side view thereof Figure 3 In (c), it is a front view thereof Figure 4 In (a), it is Figure 3Rear view of the connector unit shown in (a). Figure 4 (b) is a cross-sectional view taken along the Figure 4 C-C line in (a). In Figure 4 (a), the encapsulating resin 130 described later is not shown. In Figure 4 (b), the electronic component 50 is not shown. Figure 5 Is Figure 3 Exploded perspective view of the connector unit shown in (a).

[0036] As Figure 5 shown, the connector unit 100 of the present embodiment includes a printed wiring board 30, an interface connector 40, an electronic component 50, a waterproof sealing member 60, a housing 70, and a back connector 91, and is mainly composed of these elements.

[0037] (Printed Wiring Board 30)

[0038] The printed wiring board 30 is a wiring board formed of a single-layer or multi-layer board mainly made of, for example, glass epoxy resin. Figure 6 (a) is Figure 3 A perspective view showing the printed circuit board 35 in the connector unit shown in (a). Figure 6 (b) is Figure 6 A side view of the printed wiring board 30 shown in (a).

[0039] As Figure 6 shown, the printed wiring board 30 of the present embodiment has a flat plate shape formed by a substantially rectangular upper surface 30A and a lower surface 30B opposed to the upper surface 30A, and includes an end portion 32 having an end surface corresponding to one end in the length direction and an end portion 33 having an end surface on the opposite side of the end portion 32. The printed wiring board 30 has a first region 30a extending from the end portion 32 toward the end portion 33 and a second region 30b adjacent to the first region 30a and extending to the end portion 33. When the interface between the first region 30a and the second region 30b is defined as a boundary 30c, the first region 30a is the region on the printed wiring board 30 from the end portion 32 to the boundary 30c, and the second region 30b is the region on the printed wiring board 30 from the boundary 30c to the end portion 33.

[0040] The interface connector 40, the electronic component 50, and the back connector 91 are mounted on the upper surface 30A of the printed wiring board 30. In the present embodiment, the printed wiring board 30 on which the interface connector 40, the electronic component 50, and the back connector 91 are mounted is referred to as a printed circuit board 35. As Figure 4 shown, the printed circuit board 35 is housed in the housing 70. It should be noted that the printed wiring board 30 has two through holes 31b (refer to Fig. 9). The through hole 31b has a circular hole, and has an end 31b1 on the upper surface 30A side and an end 31b2 on the lower surface 30B side as two ends (see Fig.10 ).

[0041] (Interface connector 40)

[0042] On the upper surface 30A of the printed wiring board 30, an interface connector 40 connected to a connector such as a smartphone is mounted on the end 32 side of the first region 30a. The interface connector 40 is a type of electronic component. As Figures 4 to 6 shown, the terminals 42 of the interface connector 40 are covered by a case 41 made of a non - watertight structure of metal, and are positioned so as to face the outside of the case 70 through an opening 73 provided in the front panel portion 74 of the case 70. The case 41 has a first end 41a and a second end 41b. The interface connector 40 has two convex portions 43b (see Fig.10 one convex portion 43b shown) on the end 41b side of the bottom surface, and sequentially has convex portions 43c, 43d ( Figure 6 (a)) on both side surfaces of the case 41 from the end 41a side. The convex portion 43b is inserted into the through hole 31b provided in the printed wiring board 30 ( Fig.10 ). Similarly, the convex portions 43c, 43d are respectively inserted into the through holes 31c, 31d. By inserting the convex portions 43b, 43c, 43d into the through holes 31b, 31c, 31d, the interface connector 40 is positioned on the printed wiring board 30. The through holes 31b, 31c, 31d are holes that penetrate the upper surface 30A and the lower surface 30B of the printed wiring board 30, and here, they are formed as blind holes. The interface connector 40 of the present embodiment may be a USB Type - C connector. However, if it is an interface connector having a non - watertight structure, the type of the interface connector 40 is not particularly limited. For example, other interface connectors such as a USB Type - A connector, an HDMI (registered trademark) connector, etc. may also be used. Since the interface connector 40 has a non - watertight structure, even if the interface connector 40 is immersed in water through the opening 73, as long as the amount of immersion is small, the water will not stay inside the interface connector 40, but will be discharged to the outside of the interface connector 40.

[0043] (Electronic component 50)

[0044] On the upper surface 30A of the printed wiring board 30, on the second region 30b side, electronic components 50 such as IC chips and capacitors are mounted as surface - mounted components. The electronic component 50 of the present embodiment is as Figure 6As shown, a plurality of electronic components 50 are installed. The electronic components 50 of this embodiment are electronic components of a different type from the interface connector 40 and the back connector 91 described later. However, the number of electronic components 50 on the printed wiring board 30 is not limited to a plurality. Moreover, as described later, in this embodiment, the first area 30a side in the housing 70 is set as a non-waterproof area, and the second area 30b side is set as a waterproof area. Therefore, the electronic components 50 of this embodiment may also include electronic components that require a higher waterproofing measure than the interface connector 40. It should be noted that if the connector unit 100 of this embodiment can be realized without the electronic components 50, it is not necessary to install the electronic components 50.

[0045] (Waterproof sealing member 60)

[0046] In the printed wiring board 30 , a waterproof seal member 60 made of a hot-melt material is formed on the outer periphery 30 c 1 of the boundary 30 c . Figure 7 (a) is a perspective view of a printed circuit board 35 with which a waterproof seal member 60 is integrally formed. Figure 7 (b) is a cross-sectional view when the connector unit 100 is cut along a plane including the boundary 30 c as viewed from the interface connector 40 side.

[0047] like Figure 7 As shown, the waterproof seal member 60 covers along the outer periphery 30c1 of the boundary 30c on the printed wiring board 30, and is closely attached to the printed wiring board 30 and formed integrally with the printed wiring board 30. Figure 7 As shown in (b), the waterproof sealing member 60 formed on the printed wiring board 30 has extrusion surfaces 60A, 60B, 60C, and 60D that press against the inner surface of the cylindrical portion 72 when inserted into the housing 70. Extrusion surface 60A is continuous with extrusion surface 60B, extrusion surface 60B is continuous with extrusion surface 60C, extrusion surface 60C is continuous with extrusion surface 60D, and extrusion surface 60D is continuous with extrusion surface 60A, forming a single, continuous surface. Extrusion surfaces 60A, 60B, 60C, and 60D form the inner periphery of the cylindrical portion 72 of the housing 70 and are arranged to be in close contact with the inner surface of the cylindrical portion 72 by pressing against the inner periphery 72c that faces the outer periphery 30c1. By configuring the waterproof sealing member 60 as described above, the waterproof sealing member 60 divides the interior of the housing 70 into a first region 30a and a second region 30b.

[0048] Furthermore, the second region 30b side in the housing 70 of this embodiment is a waterproof region. Specific examples of realizing the waterproof region include injecting a sealing resin 130 and providing a rear connector 91, as will be described later.

[0049] By providing the waterproof seal member 60 and making the second region 30b side within the housing 70 a waterproof region, not only is the ingress of water from the opening 73 of the housing 70 prevented, but even if water enters from the rear end side of the housing 70 (the side opposite to the front panel portion 74 on the housing 70), the second region 30b side will exhibit a waterproof function. Therefore, regardless of the orientation in which the connector unit 100 is installed with respect to other machines such as the vehicle on which it is mounted, the printed wiring board 30 and the electronic components 50 on the second region 30b side within the housing 70 will not be affected by water ingress.

[0050] The waterproof seal member 60 is formed in a manner integrally with the printed wiring board 30 by, for example, insert molding. However, the waterproof seal member 60 is not necessarily limited to being formed as a single component, and may also be configured as, for example, a plurality of non-circular components separated from the printed wiring board 30.

[0051] (housing 70)

[0052] The printed circuit board 35 integrally formed with the waterproof seal member 60 is housed within the housing 70. The housing 70 is a molded product formed of a thermoplastic resin such as ABS. As described above, the waterproof seal member 60 divides the interior of the housing 70 into the first region 30a side and the second region 30b side. That is, by implementing the means for realizing the waterproof region described later, the housing 70 is divided into a non-waterproof region and a waterproof region with the waterproof seal member 60 as the boundary.

[0053] As Figures 3 to 5 shown, the housing 70 has cylindrical portions 71, 72 in a cylindrical shape and a front panel portion 74 located at the front end of the cylindrical portion 72. The cylindrical portion 71 has a cylindrical shape that is one size larger than the cylindrical portion 72. An opening 73 for the mating connector of the pluggable interface connector 40 is formed in the front panel portion 74 of the cylindrical portion 72. In the cylindrical portion 72, that is, on the first region 30a side of the housing 70, two drain ports 76 are formed on each of the two side faces and the bottom face, for a total of six drain ports 76. In Figure 3 、 2 order to identify each drain port, subscript numbers are attached to each reference numeral. These openings 73 and drain ports 76 all communicate through the internal space of the cylindrical portion 72. The detailed structure of the drain ports 761 to 764 will be described later.

[0054] The printed circuit board 35 integrally formed with the waterproof seal member 60 is pushed in (pressed in) from the rear end side of the cylindrical portion 71 (the side opposite to the front panel portion 74 on the housing 70) and housed within the housing 70. As Figure 4As shown, on the inner surface of the cylindrical portion 71, sliders 71a, 71b, 71c, and 71d are formed in the side regions on the left and right sides. When the printed circuit board 35 integrally formed with the waterproof sealing member 60 is pushed into the insertion housing 70, one end portion in the width direction of the printed wiring board 30 is inserted between the slider 71a and the slider 71b, and the other end portion is inserted between the slider 71c and the slider 71d and pushed in. Thus, as Figure 4 shown in (b), the back connector 91 on the printed wiring board 30 other than the interface connector 40, the electronic component 50, the waterproof sealing member 60, and the fitting portion 91a and the printed wiring board 30 are jointly accommodated at a predetermined position and a predetermined height within the housing 70.

[0055] The housing 70 is partitioned into a first region 30a side and a second region 30b side within the housing 70 by the waterproof sealing member 60. That is, when the waterproof sealing member 60 is used as the waterproof sealing member, as Figure 7 shown in (b), the pressing surfaces 60A, 60B, 60C, and 60D of the waterproof sealing member 60 press the inner surface of the cylindrical portion 72. Thus, the waterproof sealing member 60 partitions the inside of the housing 70 into a first region 30a side and a second region 30b side.

[0056] (Back connector 91)

[0057] On the upper surface 30A of the printed wiring board 30, a back connector 91 connected to a wire harness connector (not shown) is mounted on the end 33 side of the second region 30b. The back connector 91 is a type of electronic component. As Figure 5 shown, the back connector 91 is composed of a housing 91A and terminals 92. The housing 91A is cylindrical and is composed of a fitting portion 91a that fits with the above-mentioned wire harness connector and a base portion 91b that covers the base end of the fitting portion 91a. As Figure 4 shown in (a), two terminal press-fitting holes 91c are formed in the base portion 91b. The back connector 91 of the present embodiment has two terminals 92. The terminal 92 has a shape bent in an L shape, and a pair of protrusions 92a protruding to both sides in the width direction are formed on one side of the L. As Figure 4 And Figure 5 shown, one side of the L-shaped portion of the terminal 92 is press-fitted into the terminal press-fitting hole 91c and mounted on the housing 91A. One side of the press-fitted terminal 92 is in an exposed state within the fitting portion 91a in order to be able to connect to the above-mentioned wire harness connector. On the other hand, the other side of the L-shaped portion of the terminal 92 is inserted into a through hole 31a provided on the end 33 side of the printed wiring board 30 and is soldered.

[0058] (Specific example 1 for realizing the waterproof region: Encapsulation resin 130)

[0059] After the waterproof seal member 60 and the printed circuit board 35 are housed in the housing 70, potting resin 130 is injected into the second region 30b side within the housing 70. As the material of the potting resin 130, for example, polyurethane resin, epoxy resin, silicone resin, etc. can be cited, but it is not limited thereto. Although the injected potting resin 130 is indicated by reference numerals in Figure 4 (b), in order to be able to distinguish it from the cylindrical portion 71 and the printed wiring board 30, it is indicated without adding patterns such as oblique lines. As shown in Figure 4 (b), the injection of the potting resin 130 is carried out until the second region 30b side within the housing 70 is filled with the potting resin 130. By filling with this potting resin 130, the first region 30a side within the housing 70 can be made into a non-waterproof region, and the second region 30b side can be made into a waterproof region.

[0060] (Specific example 2 for realizing the waterproof region: Rear case 80)

[0061] The second region 30b side within the housing 70 can be made into a hollow state without injecting potting resin 130, or as an alternative configuration, a rear case 80 can be provided on the cylindrical portion 71 to achieve waterproofing.

[0062] Figure 8 (a) is a rear view showing an embodiment of the connector unit in the case where the rear case 80 is provided, Figure 8 (b) is Figure 8 a cross-sectional view taken along the line C - C in (a). In Figure 8 (b), the electronic component 50 is not shown. In the connector unit 100 shown in Figure 8 , different from Figure 4 , the second region 30b side within the housing 70 is not filled with potting resin 130. As an alternative, the rear end of the cylindrical portion 71 of the housing 70, that is, the end portion of the second region 30b side within the housing 70, is covered by the rear case 80. The rear case 80 has a circular flat plate having the same shape as the inner diameter of the cylindrical portion 71. The gap between the contact portion of the rear case 80 and the housing 70, that is, the inner peripheral surface of the rear end of the cylindrical portion 71 and the outer peripheral surface of the rear case 80, is firmly joined by an adhesive or the like. By covering the rear end of the cylindrical portion 71 with the rear case 80, the second region 30b side within the housing 70 can exert a waterproof function.

[0063] In the case where the rear case 80 is provided, it can also be formed such that in the fitting portion 91a and the base portion 91b ( Figure 5), the rear case 80 is integrally formed therebetween. Thus, the base portion 91b forms a part of the rear case 80, and the fitting portion 91a protrudes rearward compared to the rear case 80. On the other hand, the rear case 80 may also be formed separately from the back connector 91. For example, the rear case 80 may also be a structure for holding the back connector 91. It is conceivable that the rear case 80 is formed of a component of the same quality as the waterproof seal member 60, but it is not limited thereto.

[0064] Even when the second region 30b side in the housing 70 is set as a waterproof region by providing the rear case 80, in order to further improve this waterproof function, it may be configured to fill the potting resin 130 on the second region 30b side in the housing 70. Note that, when the potting resin 130 is not injected, in the case where the rear case 80 is provided, from the viewpoint of water resistance, a moisture-proof layer may be applied to the printed wiring board 30. As a coating agent, for example, a room-temperature type fluorine coating agent may be used, and a coating agent containing a resin such as a polyurethane-based, acrylic-based, or silicone-based resin as a film component may also be used.

[0065] Similar to the potting resin 130, the rear case 80 can not only function as a waterproof structure for the second region 30b side in the housing 70, but also achieve the waterproof function at a lower cost compared to the potting resin 130.

[0066] (Water guide member 28)

[0067] A water guide member 28 is formed in the cylindrical portion 72. Fig. 9 It is a diagram for explaining the water guide member 28. Fig. 9 (a) shows Figure 3 In the A - A cross-sectional view in (c), from Figure 3 The region from the front panel portion 74 in (b) to the section line B - B. Fig. 9 (b) is Figure 3 The B - B cross-sectional view in (b). Fig. 9 (c) is viewed from the upper left direction Fig. 9 The perspective view of (b). Fig. 9 (d) is viewed from the lower left direction Fig. 9 The perspective view of (b). Fig.10 Is Fig. 9 An enlarged view of the region indicated by the dashed line in (a).

[0068] The water guide member 28 is formed below the interface connector 40 and on the lower surface 30B side of the printed wiring board 30, protruding from the inner surface of the front panel portion 74 toward the waterproof seal member 60 side. The water guide member 28 is composed of a base portion 281, two leg portions 282, and a reinforcing portion 283. The base portion 281 has a flat plate shape protruding as a quadrangular prism having a rectangular bottom surface from the inner surface of the front panel portion 74 toward the waterproof seal member 60 side.

[0069] As shown Fig.10 in the figure, the wall thickness of the base portion 281 is constant from the inner surface of the front panel portion 74 to the region having the surface 281a, and the region having the surface 281b is formed to be thinner toward the waterproof seal member 60 side. That is, the surface 281b is inclined away from the lower surface 30B at an angle θ with respect to the surface 281a. The two leg portions 282 are respectively provided to extend in a curved shape from both ends in the longitudinal direction of the base portion 281. The two leg portions 282 are connected to the base portion 281 and are integrally formed in a C shape. At least a part of the base portion 281 is disposed at a position opposed to each through hole 31b. The leg portion 282 has a shape that protrudes toward the waterproof seal member 60 side from the inner surface of the front panel portion 74 by the same length as the base portion 281. The plate thickness of the leg portion 282 is formed to be constant in a predetermined region corresponding to the surface 281a, and, similarly to the base portion 281, it becomes thinner toward the waterproof seal member 60 side in the region corresponding to the surface 281b. The reinforcing portion 283 extends from the inner surface of the front panel portion 74 toward the waterproof seal member 60 side to reinforce the base portion 281 from the central position in the longitudinal direction of the base portion 281. The extended length is formed to be slightly shorter than that of the base portion 281.

[0070] As shown Fig.10 in the figure, the water guide member 28 has an inclined surface (surface 281b) having a predetermined angle (90 degrees - θ) with respect to the through direction of the through hole 31b, and the shortest distance ( Fig.10 distance X in the figure) from the shape center of gravity of the end portion 31b2 is arranged to be shorter than the radius of the maximum circle that can insert the shape of the end portion 31b2. That is, taking the example of Fig.10 , it is arranged at a position where the relationship of X < (D / 2) is maintained. Therefore, when the water intrusion protrudes downward from the end portion 31b2, the water intrusion contacts the water guide member 28. In this case, the base portion 281 and the leg portion 282 having the inclined surface become flow paths, and the water intrusion that should have stayed in the through hole 31b flows downward. Therefore, the water guide member 28 discharges the water that has entered the through hole 31b of the printed wiring board 30 to the outside of the printed wiring board 30. Further, the thin wall portion of the base portion 281, the bent portion of the leg portion 282, and the thin wall portion of the leg portion 282 guide the water intrusion in the direction of each portion.

[0071] The water guide member 28 is formed in a C shape by the base portion 281 and the leg portion 282, and has a reinforcing portion 283 that reinforces the base portion 281. The water guide member 28 is provided in contact with the inner surface of the front panel portion 74. Therefore, even when a force is applied to the front panel portion 74 during the insertion and removal operation of the object-side connector of the interface connector 40 through the opening portion 73, the deformation and breakage of the front panel portion 74 can be reduced.

[0072] (Drainage port 76, notch portion 761)

[0073] Six drainage ports 76 are formed in the cylindrical portion 72. When viewed from the front panel portion 74 side ( Figure 3 (c)), on the right side surface of the cylindrical portion 72 (hereinafter, also referred to as the right side surface of the cylindrical portion 72), a set of drainage ports in which a drainage port 761 and a drainage port 762 are formed at a predetermined distance from each other in sequence from the front panel portion 74 side. When viewed from the front panel portion 74 side, on the left side surface of the cylindrical portion 72 (hereinafter also referred to as the left side surface of the cylindrical portion 72), a set of drainage ports in which a drainage port 763 and a drainage port 764 are formed at a predetermined distance from each other in sequence from the front panel portion 74 side. When viewed from the front panel portion 74 side, on the bottom surface of the cylindrical portion 72, a set of drainage ports in which a drainage port 765 and a drainage port 766 are formed at a predetermined distance from each other in sequence from the front panel portion 74 side. Each of the drainage ports 761 to 766 is formed by penetrating from the surface 72A, which is the inner surface of the cylindrical portion 72, to the surface 72B, which is the outer surface. The hole shape of the drainage port 76, which is a through hole, has a substantially rounded quadrilateral hole shape 76a, 76b, 76c, 76d, 76e, 76f in the order of the drainage ports 761 to 766.

[0074] As described later, notch portions 761 are respectively provided between the drainage port 761 and the drainage port 762, and between the drainage port 763 and the drainage port 764. In the present embodiment, the drainage ports 761 to 764 and the two notch portions 761 are Figure 4 formed in a bilaterally symmetric structure with the C-C cross section shown in (a) as the reference plane. Hereinafter, the drainage port 761, 762, and the notch portion 761 provided between the drainage ports 761 and 762 will be described. The description of the drainage ports 763, 764, the notch portion 761 provided between the drainage ports 763 and 764, and the drainage ports 765, 766 that do not have the notch portion 761 will be omitted.

[0075] Fig.11 FIG. is a diagram for explaining the drainage port 761, 762, and the notch portion 761 of the first embodiment. Fig.11 (a) is a side view of the connector unit 100, Fig.11 (b) is Fig.11 a Y-Y cross-sectional view of (a), Fig.11 (c) is Fig.11 an enlarged view corresponding to the region surrounded by a single-dot chain line in the X-X cross-sectional view of (a) and Fig.11 (b), Fig.11 (d) is Fig.11 an enlarged view corresponding to the region surrounded by a single-dot chain line in the Z-Z cross-sectional view of (a) and Fig.11 (b), Fig.11 (e) is Fig.11W - W cross-sectional view of (a) Fig.11 (f) is Fig.11 An enlarged view of the region indicated by the single-dashed line in (e). For the sake of convenience in explanation, for Fig.11 (a), the water guiding member 28 and the printed wiring board 30 that can be visually confirmed from the drain ports 761 and 762 are not shown

[0076] As Fig.11 shown, a notch portion 761 with a length L2 ( Fig.11 (f)) is provided between the drain ports 761 and 762 which are a set of drain ports. The notch portion 761 is on the drain port and has a hole shape that starts from the middle of the through direction to the outer surface of the housing, is in contact with a part of the outer periphery of the hole shape, and enlarges the hole shape of the drain port. That is, the notch portion 761 is opposite to the middle of the through direction from the inner surface (surface 72A) to the outer surface (surface 72B) of the cylindrical portion 72 among the drain ports 761 and 762, and is formed by cutting the cylindrical portion 72 with a length (length L2) from the position away from the surface 72A by a length L1 as the starting point to the surface 72B

[0077] Moreover, the notch portion 761 is a part of the outer periphery of the hole at the position away from the surface 72A by a length L1 as the starting point among the drain ports (761, 762), and has a substantially rectangular hole shape 761a that is in contact with the end portions 761a, 762a (refer to Fig.13 (a)) and enlarges the hole shapes 76a, 76b. That is, the notch portion 761 starts from the end portions 761a, 762a, has the hole shape 761a, and is formed by cutting the cylindrical portion 72 with a length L2 in the through direction (the direction passing through from the surface 72A to the surface 72B). Thus, the notch portion 761 forms a substantially rectangular parallelepiped space (opening portion) with the hole shape 761a

[0078] By providing the notch portion 761, the sizes and shapes of the holes of the drain ports 761 and 762 change at the position of the length L1 (i.e., starting from the end portions 761a, 762a). The drain ports 761 and 762 have the shapes and sizes of the hole shapes 76a and 76b respectively from the surface 72A to the end portions 761a, 762a at a distance of length L1. In the hole shapes of the drain ports 761 and 762, the portion of length L2 from the end portions 761a, 762a to the surface 72B is a shape in which the three hole shapes of the hole shape 76a, the hole shape 761a, and the hole shape 76b are connected. That is, the hole shapes of the drain ports 761 and 762 become discontinuous at the position of the length L1 (end portions 761a, 762a) in the middle of the through direction, and the shape and size change from two hole shapes having the hole shapes 76a and 76b to one hole shape having the size of the hole shape 76a + the hole shape 761a + the hole shape 76b.

[0079] Fig.12 is an example showing the influence of providing the notch portion 761 on drainage Fig.11 and is a schematic diagram corresponding to Fig.12 (f). Fig.12 (a) shows the case where the notch portion 761 is not provided. Figure 3 (b) shows the case where the notch portion 761 is provided. For example, it is conceivable that the connector unit 100 is installed on a motorcycle, other vehicles, etc. and used, and the form of the use state is not limited to being maintained in Fig.12 the state shown. That is, the connector unit 100 can be used in various forms according to the user's usage form. Therefore, in the following description, the form in which the through direction of the drain port 76 is consistent with the gravity direction, which is considered to most promote drainage, is described. Fig.12 The gravity direction (G) of 1－IN is vertically upward when viewed from the front. 2－IN And, the openings on the surface 72A side of the drain ports 761 and 762 are defined as the drain ports 76 1－OUT and 76 2－OUT , and the openings on the surface 72B side are defined as the drain ports 76 1－IN and 76 2－IN . The water intrusion received by the opening portion 73 is transmitted along the printed wiring board 30 via the interface connector 40 and reaches the surface 72A inside the cylindrical portion 72. Or, it directly reaches the surface 72A from the interface connector 40. A part of the water intrusion reaching the surface 72A enters the drain ports 76 1－OUT and 76 2－OUT and flows toward the drain ports 76

[0080] In the case where the notch portion 761 is not provided ( Fig.12 (a)), sometimes water may enter the drain port 761－OUT , 76 2－OUT The flowing immersion water accumulates near the drain outlet 76 which is the outlet within the drain port. 1－OUT , 76 2－OUT Nearby, a pooling phenomenon occurs. The connector unit 100 is formed in a cylindrical shape to prevent foreign matter from entering, and the shape and size of the drain outlet 76 are restricted to a certain extent. As one of the factors causing the pooling phenomenon, it is likely to occur when the size of the hole shape of the drain outlet 76 cannot be sufficiently ensured and droplets of a size that can drip cannot be generated.

[0081] In the case where the notch portion 761 is provided ( Fig.12 (b)), at the position of the length L1, that is, with the end portions 761a, 762a (refer to Fig.13 (a)) as the boundary, the size of the hole shape rapidly expands from the hole shape 76a or the hole shape 76b to the hole shape 76a + the hole shape 761a + the hole shape 76b. This rapid change does not occur in all directions on the outer periphery of the drain outlet, but is limited to a part of the directions such as the end portions 761a, 762a (refer to Fig.13 (a)). In other words, a predetermined range of the outer periphery of the hole shapes 76a, 76b of the drain outlets 761, 762 is cut off. The immersion water entering the drain outlet 76 1－IN , 76 2－IN maintains the flow direction from the surface 72A to the surface 72B, and a pooling phenomenon occurs at the end portions 761a, 762a (that is, the area where the outer periphery is cut off). On the other hand, in the area of the outer periphery on the non-cut side, the drain outlets 761, 762 continue to the surface 72B as drain outlets, so the flow in the through direction is maintained in this way. In addition, there is also other immersion water flowing from behind, and the above situation will be accelerated. As a result, the orientation of the front surface of the immersion water near the end portions 761a, 762a is inclined from the through direction at a certain angle toward the cut-off area side. In other words, the immersion water adhering to the outer periphery on the non-cut side is in a state closer to the surface 72B compared to the immersion water adhering to the outer periphery on the cut side. As a result, it is easy to produce a state where the direction of the front surface of the immersion water near the end portions 761a, 762a is inclined obliquely with respect to the through direction.

[0082] Therefore, for the drain outlets 761, 762 provided with the notch portion 761, the diameter of the droplets remaining near the end portions 761a, 762a is more likely to form droplets with a larger diameter compared to the case without the notch portion 761. Compared to the case without the notch portion 761, if droplets with a larger diameter are generated, the weight ratio of the droplets Fig.12The liquid in (a) is heavier, and its surface tension becomes weaker, making it easier to drip. Therefore, by providing the notch portion 761, the accumulation phenomenon can be avoided. Also, depending on conditions such as the amount and flow rate of the water entering the drain ports 761 and 762, the water droplets from the drain port 761 and the water droplets from the drain port 762 abut against each other in the notch portion 761, forming larger water droplets. Due to the provision of the notch portion 761, the hole shapes of the drain ports 761 and 762 on the surface 72B side become larger, but the hole shapes on the surface 72A side still maintain the sizes of the original hole shapes 76a and 76b, and the possibility of foreign matter intrusion is not increased.

[0083] Thus, by providing the notch portion 761 in the drain port 76, compared with the case where the notch portion is not provided, the diameter of the water droplets generated from the stagnant water increases and it is easier to drip. Therefore, the possibility of foreign matter entering the interior of the machine is not increased, and the water entering the drain hole from inside the machine can be actively discharged.

[0084] <First Modification of the First Embodiment>

[0085] Fig.13 It is a diagram for explaining the drain port and the notch portion of the first modification of the first embodiment. Fig.13 (a) schematically shows Fig.11 a schematic view of the vicinity of the drain port 761 and the drain port 762 in (a). Fig.13 (b) to Fig.13 (f) are schematic views that schematically show the drain port and the notch portion of the modification in the same manner as (a). In Fig.13 , in order to identify the drain port and the notch portion, the area of the notch portion is represented by a line pattern. Fig.13 The direction of gravity (G) in Fig.13 is the vertical front direction when viewed from the front. Fig.13

[0086] The arrangement direction of the drain ports in the cylindrical portion 72 described above can be vertical. For example, as Fig.13 (b) shows, on the right side surface of the cylindrical portion 72, the drain port 761 is provided horizontally, and below it (i.e., vertically), the drain port 762, which is separated from the drain port 761 by a predetermined distance, is also provided horizontally, and the notch portion 761 can also be formed therebetween. Needless to say, the arrangement direction of the drain ports has an advantage in terms of expanding the degree of freedom in design.

[0087] The number of sets of drain ports provided in the cylindrical portion 72 can be multiple. For example, as Fig.13 (c) shows, two sets are provided (the drain ports 76 1－1 , 76 2－1 and the drain ports 76 1－2 , 76 2－2 ​)Drainage ports are provided at a predetermined distance from each other, and the groups of drainage ports can be further separated from each other by a predetermined distance. In this case, a notch portion 7612 having a substantially cross-shaped hole shape 7612a is formed between the respective drainage ports. For example, in order to strengthen the countermeasure against foreign matter intrusion, there may be a case where only drainage ports having a hole shape smaller than the above-mentioned drainage ports 761 and 762 are provided. In this case, as Fig.13 shown in (c), the number of groups of drainage ports is set to a plurality, and by appropriately adjusting the number of drainage ports 76 and the size of the notch portion 761, a drainage effect equivalent to that of Fig.13 (a) can be achieved, and the countermeasure against foreign matter intrusion can be more reliably implemented.

[0088] The notch portion can also be provided for each drainage port. Specifically, it can be formed such that on one drainage port, from the middle of the through direction to the outside of the housing, there is a hole shape that is at least half in contact with the outer periphery of the hole shape of the drainage port and has an enlarged hole shape. For example, as Fig.13 shown in (d), in the case where a drainage port 76 having a circular hole shape 76g is provided 1－3 , a notch portion 7613 is formed to be in contact with an end portion 763a corresponding to at least half of the outer periphery of the drainage port 76 1－3 , and the hole shape 7613a having an enlarged hole shape 76g is formed. The notch portion 7613 is a dedicated notch portion for the drainage port 76 1－3 , and is not shared with other drainage ports. Therefore, Fig.13 (d) has a higher degree of freedom in the direction and shape of cutting the cylindrical portion 72 compared to Fig.13 (a), and also has a higher degree of freedom in design.

[0089] When ensuring that the size of the notch portion can be enlarged compared to Fig.13 (d), it can also be as shown in Fig.13 (e). Fig.13 (e) is another example in the case where the length of the end portion 763a is ensured to be more than half of the outer periphery of the drainage port 76 1－3 . As shown in Fig.13 (e), the notch portion 7614 is in contact with an end portion 764a (three sides and four corner portions of a rounded quadrilateral) that is the majority of the outer periphery of the drainage port 76 having a rounded quadrilateral hole shape 76h 1－4 , and is not in contact with the end portion 764b. The notch portion 7614 has a hole shape 7614a that enlarges the rounded quadrilateral hole shape 76h. In the case of Fig.13 (e), most of the drainage port 76 1－4 is included in the notch portion 7614, and in the drainage port 76 1－4Among them, the surface in the penetration direction including the end portion 764b constitutes a continuous surface from the surface 72A to the surface 72B. Therefore, the waterlogging not only stays in the notch portion 7614, but also maintains the flow in the drainage direction, exerting a dripping effect.

[0090] In the case where the notch portion has a hole shape of a rounded quadrilateral, it can also be formed to be in angular contact with at least one side of the outer periphery of the drainage port 76 including the corners at both ends thereof. For example, as Fig.13 shown in (f), the notch portion 7615 is in angular contact with the end portion 765a of one side in the long side direction of the drainage port 76 having a hole shape 76i of a rounded quadrilateral and the corners including both ends thereof. The notch portion 7615 has a hole shape 7615a. In the case where the notch portion 7615 can be ensured to have a hole shape equal to or larger than the hole shape 7615a, the notch portion 7615 is formed to be in angular contact with one side in the short side direction of the drainage port 76 and the end portions including the corners at both ends thereof. Although the hole shape satisfies the condition of a rounded quadrilateral, in terms of not being restricted by the condition that the notch portion is in contact with at least half of the outer periphery of the drainage port, it has the advantage of higher design freedom than 1－5 that in (d). 1－5 As described above, the notch portion of the first embodiment and its modified example is on the drainage port, from the middle of the penetration direction (the direction from the surface 72A to the surface 72B) to the outside of the cylindrical portion 72 constituting the housing 70, in contact with a predetermined range on the outer periphery of the hole shape of the drainage port, and has a hole shape that enlarges its hole shape. In other words, the notch portion cuts off a predetermined range on the outer periphery of the hole shape of the drainage port from the middle of the penetration direction to the outside of the housing 70. Thus, compared with the case where no notch portion is provided, it is possible to increase the diameter of the droplets generated by the waterlogging and make them easy to drip. Therefore, any one of the first embodiment and its modified example can actively discharge the water that enters the drainage port from the inside of the machine without increasing the possibility of foreign objects entering the machine. Fig.13

[0091] As described above, the notch portion of the first embodiment and its modified example is on the drainage port, from the middle of the penetration direction (the direction from the surface 72A to the surface 72B) to the outside of the cylindrical portion 72 constituting the housing 70, in contact with a predetermined range on the outer periphery of the hole shape of the drainage port, and has a hole shape that enlarges its hole shape. In other words, the notch portion cuts off a predetermined range on the outer periphery of the hole shape of the drainage port from the middle of the penetration direction to the outside of the housing 70. Thus, compared with the case where no notch portion is provided, it is possible to increase the diameter of the droplets generated by the waterlogging and make them easy to drip. Therefore, any one of the first embodiment and its modified example can actively discharge the water that enters the drainage port from the inside of the machine without increasing the possibility of foreign objects entering the machine.

[0092] <Second Embodiment>

[0093] In the second embodiment, no notch portion is provided, and a part of the outer periphery of the drainage port is a structure that can obtain the same effect as the first embodiment by providing a protrusion 77 that further protrudes outward from the surface (surface 72B) on the outside of the cylindrical portion 72.

[0094] Fig.14 It is a diagram for explaining the drainage port and the notch portion of the second embodiment. Fig.14 (a) is a schematic diagram shown in a simplified manner in the same way as Fig.13 (a). Fig.14 (b) is Fig.14View of the drain ports 761 and 762 drawn out in (a). Fig.14 (c) is a sectional view taken along line U-U, Fig.14 (d) is a sectional view taken along line V-V. In this embodiment, similar to the first embodiment, there is a set of drain ports 761 and 762.

[0095] The cylindrical portion 72 of the second embodiment has a protruding portion 77. The protruding portion 77 is provided on the outer surface (surface 72B) of the cylindrical portion 72, is connected to three sides and two corner portions (ends 761b, 762b) that are part of the outer perimeters of the drain ports 761 and 762 respectively, and surrounds the set of drain ports 761 and 762, and protrudes from the surface 72B further in the outward direction with a plate thickness t. The protruding length L3 can be appropriately adjusted with reference to the above-mentioned length L2 ( Fig.12 ) of the length. In Fig.14 (b), in order to clarify the range of the ends 761b, 762b, the drain ports 761, 762 are shown by dotted lines, and the ends 761b, 762b are shown by thick lines.

[0096] By providing the protruding portion 77, the drain ports 761, 762 extend further outward from the surface 72B. As the drain ports 761, 762 extend, an opening 7616 having a space with a hole shape 7616a is formed. That is, from the surface 72A to the surface 72B, two holes with hole shapes 761a and 762a are formed, but when viewed from the surface 72B, the outside is formed as one hole shape (hole shape 761a + hole shape 7616a + hole shape 762a). If the perspective is changed, it can be said that the opening 7616 cuts a predetermined range on the outer perimeters of the hole shapes 761a, 762a in the drain ports 761, 762. Therefore, the opening 7616 has the same function as the notch portion 761, does not increase the possibility of foreign objects entering the interior of the machine, and can actively drain the water that enters the drain port from inside the machine.

[0097] <Modification Example of the Second Embodiment>

[0098] As described above, the opening 7616 has the same function as the notch portion 761. Therefore, in Fig.13 (a) to (c), instead of providing the notch portion, a protruding portion that protrudes further outward from the surface 72B can be provided in the area corresponding to the notch portion. For example, Fig.13 as shown in (b), when there are a drain port 761 and a drain port 762, instead of providing the notch portion 761, the area corresponding to the notch portion 761 can be set as a protruding portion that protrudes further outward from the surface 72B. And, Fig.13 as shown in (c), when there are drain ports 76 1－1 、76 2－1 and a drain port 761－2 and 76 2－2 In the case of, instead of providing the notch portion 7612, a region corresponding to the notch portion 7612 may be provided as a protruding portion that further protrudes outward from the surface 72B.

[0099] Similar to the notch portion, the protruding portion may be provided for each drain port. Therefore, in Fig.13 In (d) to (f), instead of providing the notch portion, a protruding portion that further protrudes outward from the surface 72B may be provided in the region corresponding to the notch portion. For example, in the case where there is provided Fig.13 the drain port 76 shown in (d) 1－3 in the case of, instead of providing the notch portion 7613, the region from the end portion 763a to the region where a predetermined thickness (for example, thickness t) is ensured is provided as a protruding portion that further protrudes outward from the surface 72B. And, in the case where there is provided Fig.13 the drain port 76 shown in (e) 1－4 in the case of, instead of providing the notch portion 7614, the region from the end portion 764a to the region where a predetermined thickness (for example, thickness t) is ensured is provided as a protruding portion that further protrudes outward from the surface 72B. In the case where there is provided Fig.13 the drain port 76 shown in (f) 1－5 in the case of, instead of providing the notch portion 7615, the region from the end portion 765a to the region where a predetermined thickness (for example, thickness t) is ensured is provided as a protruding portion that further protrudes outward from the surface 72B.

[0100] As described above, the protruding portion of the second embodiment and its modification is provided on the outer surface (surface 72B) of the cylindrical portion 72 constituting the housing 70, is in contact with a predetermined range on the outer periphery of the drain port, and protrudes from the cylindrical portion 72 in the penetrating direction (from the surface 72A to the surface 72B). In any of the second embodiment and its modification, water entering the drain port from inside the machine is actively discharged without increasing the possibility of foreign matter entering the inside of the machine.

[0101] As described above, the first embodiment and its modification and the second embodiment and its modification have been described. The hole shape of the drain port 76 is not limited to the above shape, and may be other hole shapes. For example, the hole shapes of the drain ports 761, 762, 76 1－1 , 76 2－1 , 76 1－2 , 76 2－2 , 76 1－4 are not limited to the rounded quadrilateral shape, and may be other hole shapes such as a circular shape and an oval shape. The drain port 76 1－3The shape of the hole is not limited to a circle, and may also be other shapes such as a rounded rectangle or an oblong. The notch portion 761 may be provided between the drain openings 765 and 766 formed in the bottom surface of the cylindrical portion 72. In addition, the connector unit 100 described in this embodiment can of course be appropriately changed without departing from the gist of the present invention.

[0102] Explanation of Reference Numerals

[0103] 28, water guiding member;

[0104] 30, printed wiring board;

[0105] 30A, upper surface;

[0106] 30a, first region;

[0107] 30B, lower surface;

[0108] 30b, second region;

[0109] 30c, boundary;

[0110] 30c1, outer periphery;

[0111] 31a, through hole;

[0112] 31b~31d, through holes;

[0113] 31b1, 31b2, ends;

[0114] 31bJ, shaft;

[0115] 32, 33, ends;

[0116] 35, printed circuit board;

[0117] 40, interface connector;

[0118] 41, housing;

[0119] 41a, 41b, ends;

[0120] 42, terminal;

[0121] 43b~43d, convex portions;

[0122] 50, electronic component;

[0123] 60, waterproof sealing member;

[0124] 60A - 60D, pressing surfaces;

[0125] 70, housing;

[0126] 71, 72, cylindrical portions;

[0127] 71a to 71d, slider;

[0128] 72c, inner circumference;

[0129] 72A, 72B, surface;

[0130] 73, opening;

[0131] 74, front panel part;

[0132] 76, drain port;

[0133] 761a to 765a, end;

[0134] 761b, 762b, end;

[0135] 76a to 76i, hole shape;

[0136] 761a, hole shape;

[0137] 7612a to 7616a, hole shape;

[0138] 761, notch part;

[0139] 7612 to 7615, notch part;

[0140] 7616, opening;

[0141] 77, protruding part;

[0142] 80, rear case;

[0143] 91, rear connector;

[0144] 91A, housing;

[0145] 91a, fitting part;

[0146] 91b, base;

[0147] 91c, terminal press-in hole;

[0148] 92, terminal;

[0149] 92a, protrusion;

[0150] 100, connector unit;

[0151] 130, encapsulating resin;

[0152] 281, base;

[0153] 281a, 281b, surface;

[0154] 282, leg;

[0155] 282a, 282b, surface;

[0156] 283, strengthening part;

[0157] D, diameter;

[0158] L1, L2, length;

[0159] t, thickness;

[0160] X, distance;

Claims

1. A machine unit, characterized in that, Comprising: A housing, the interior of which is divided into a waterproof area and a non-waterproof area; A metal component, which is installed in the non-waterproof area of the housing, The housing has: A drain opening, which is provided on the non-waterproof area side and has a first hole shape that penetrates from the inside to the outside of the housing in order to drain the water ingress of the metal component; A notch, which is provided on the drain opening and cuts off a predetermined range on the outer periphery of the first hole shape from the middle of the penetration direction to the outside of the housing.

2. The machine unit according to claim 1, characterized in that The predetermined range on the outer periphery of the first hole shape of the notch is at least half of the outer periphery of the first hole shape.

3. The machine unit according to claim 1, wherein, The first hole shape of the drain opening is a rounded quadrilateral, The predetermined range on the outer periphery of the first hole shape of the notch is at least one side and the two ends of the corner of the hole shape of the rounded quadrilateral.

4. A machine unit, characterized in that, Comprising: A housing, the interior of which is divided into a waterproof area and a non-waterproof area; A metal component, which is installed in the non-waterproof area of the housing, The housing has: A set of drain openings, which are provided on the non-waterproof area side at a predetermined distance from each other and each have a first hole shape that penetrates from the inside to the outside of the housing in order to drain the water ingress of the metal component; A notch, which is provided between the set of drain openings and has a second hole shape that is connected to a part of the outer periphery of each of the drain openings and expands the first hole shape from the middle of the penetration direction of each of the drain openings to the outside of the housing.

5. A machine unit, characterized in that, Comprising: A housing, the interior of which is divided into a waterproof area and a non-waterproof area; A metal component, which is installed in the non-waterproof area of the housing, The housing has: A drain opening, which is provided on the non-waterproof area side and has a first hole shape that penetrates from the inside to the outside of the housing in order to drain the water ingress of the metal component; A protrusion, which is provided on the outer surface of the housing, is connected to a predetermined range on the outer periphery of the first hole shape, and protrudes from the housing in the penetration direction.

6. The machine unit according to claim 5, characterized in that, The predetermined range on the outer periphery of the first hole shape of the protrusion is at least half of the outer periphery of the first hole shape.

7. A machine unit, wherein, Comprising: A housing, the interior of which is divided into a waterproof area and a non-waterproof area; A metal component, which is installed in the non-waterproof area of the housing, The housing has: A set of drain openings, which are provided on the non-waterproof area side at a predetermined distance from each other and each have a first hole shape that penetrates from the inside to the outside of the housing in order to drain the water ingress of the metal component; A protrusion, which is provided between the set of drain openings on the outer surface of the housing, is connected to a part of the outer periphery of each of the drain openings, and protrudes from the housing in the penetration direction.

8. The machine unit according to claim 7, wherein, The protrusion is provided on the outer surface of the housing, is connected to a part of the outer periphery of each of the drain openings, surrounds the set of drain openings, and protrudes from the housing in the penetration direction.

9. The machine unit according to any one of claims 1, 2 or claims 4 to 8, characterized in that the hole shape of the drain outlet is any one of circular, oblong or rounded quadrilateral.

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