Electronic apparatus

Abstract

To provide an electronic apparatus which has an improved effect for preventing the entry of foreign objects.SOLUTION: An electronic apparatus 100 comprises: a circuit board 50 having a connector 53; and a case 10 for housing the circuit board. The case has: a cover 40 provided with an opening where the connector is disposed; and housing parts 20, 30 which form, together with the cover, a housing space 24 for the circuit board. The cover has: a first cover part 41 which is a soft material provided with a first opening 41h; and a second cover part 42 which is in contact with the first cover part, and which is a hard material provided with a second opening 42h having an opening area larger than that of the first opening. A section forming the first opening is provided annularly along the outer periphery of the connector 53 and has, at least on its one portion, a protrusion 412 protruding to the outside of the housing space 24.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to an electronic device.

Background Art

[0002] Patent Document 1 discloses an electronic device including a connector and a housing. To prevent dust, such as dust and dirt, from entering the housing through the gap between the connector insertion port of the housing and the outer periphery of the connector, a dust cover is provided between the connector and the connector insertion port. The dust cover is made of a non-woven fabric or an elastic member such as rubber or sponge.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-described electronic device can be expected to prevent foreign matter such as dust and dirt from entering the housing from the outside of the housing. However, depending on the load applied to the dust cover by the foreign matter, the dust cover may be turned up and enter the housing. From the above viewpoints or other viewpoints not mentioned, further improvement of the electronic device is required.

[0005] One object of the disclosure is to provide an electronic device with an improved effect of suppressing the intrusion of foreign matter.

Means for Solving the Problems

[0006] The electronic device disclosed herein is an electronic device including a circuit board (50) having an external connection connector (53) and a case for housing the circuit board, wherein the case A cover (40, 40b to 40d) provided with an opening in which an external connection connector is disposed, and a housing portion (20, 30, 30a) that forms a housing space (24) for the circuit board together with the cover. The cover includes a first cover portion (41, 41c) made of a soft material provided with a first opening (41h) that is part of the opening, and a second cover portion (42, 42d) made of a hard material that is in contact with the first cover portion and is provided with a second opening (42h) that is part of the opening and has a larger opening area than the first opening. The portion forming the first opening is provided annularly along the outer periphery of the external connection connector and has a protruding portion (412) that protrudes at least partially outside the housing space.

[0007] Thus, the electronic device has a configuration in which the portion forming the first opening is provided annularly along the outer periphery of the external connection connector. And the portion forming the first opening has a protruding portion that protrudes at least partially outside the housing space. Therefore, the electronic device can suppress the protruding portion from being turned up even if a foreign object tries to enter the housing space. Thus, the electronic device can improve the effect of suppressing the intrusion of foreign objects into the housing space.

[0008] The plurality of aspects disclosed in this specification adopt different technical means in order to achieve their respective purposes. The reference numerals in parentheses described in the claims and in this section are illustratively shown for the correspondence with the parts of the embodiments described later, and are not intended to limit the technical scope. The objects, features, and effects disclosed in this specification will become clearer by referring to the subsequent detailed description and the accompanying drawings.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0010] Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each mode, the same reference numerals may be given to the parts corresponding to those described in the preceding mode, and duplicate explanations may be omitted. In each mode, when only a part of the configuration is described, the other modes described previously can be referred to and applied to the other parts of the configuration.

[0011] (First Embodiment) The electronic device 100 according to the first embodiment will be described with reference to FIGS. 1 to 5. The electronic device 100 is configured to be mountable on a moving body, for example. Examples of the moving body include vehicles such as electric vehicles, hybrid vehicles, and fuel cell vehicles, flying bodies such as electric vertical take-off and landing aircraft and drones, ships, construction machines, and agricultural machines.

[0012] In this embodiment, as an example, the electronic device 100 is applied to a vehicle anti-theft device. The anti-theft device is an immobilizer device, a locking device, or the like. Therefore, the electronic device 100 needs to comply with, for example, the agreement rules (UN R116) related to the anti-theft device. In addition, in order to comply with the rules, it is necessary to satisfy the IP40 requirement. The IP40 requirement is a requirement for protecting so that solids with a diameter of 1.0 mm (φ1) or more do not enter the case. In the IP40 requirement, a structure is required such that a test rod (φ1 + 0.05 / 0) cannot enter the case even when inserted with a load of 1 ± 0.1 N.

[0013] <Overall Configuration and Circuit Board> As shown in FIGS. 1 and 2, the electronic device 100 includes a circuit board 50 and a case 10 that houses the circuit board 50. A plurality of circuit components 52 and a connector 53 are mounted on the wiring board 51 of the circuit board 50. The wiring board 51 is a board in which conductive wirings are formed on an electrically insulating substrate. The wiring board 51 is fixed to the case 10 via bolts or the like.

[0014] The circuit components 52 and the connector 53 are electrically connected to the wirings in a state of being mounted on the wiring board 51. The connector 53 is for electrically connecting the electronic device 100 and an in-vehicle device provided outside the electronic device 100. The connector 53 includes a terminal electrically connected to the wiring of the wiring board 51 and a connector case surrounding the terminal.

[0015] In this embodiment, as an example, an example in which the circuit components 52 and the connector 53 are mounted on the front surface side of the wiring board 51 is adopted. However, the present disclosure is not limited to this. The connector 53 may be mounted on the back surface of the wiring board 51. Further, the circuit components 52 may be mounted on both the front and back surfaces of the wiring board 51 or only on the back surface of the wiring board 51. Here, the front surface is the surface on the lid member 30 side. On the other hand, the back surface is the opposite surface of the front surface. The back surface is a surface facing the bottom wall 21 of the base 20, which will be described later.

[0016] As shown in FIGS. 2 and 3, the connector 53 includes, for example, four side surfaces S1 to S4 that form the outer periphery. The side surfaces S1 to S4 are the outer surfaces of the connector case. However, the side surfaces of the connector 53 may be circular (curved surfaces).

[0017] The connector 53 is configured to be attachable to the vehicle-side connector 200. The vehicle-side connector 200 includes a terminal and a connector case, similar to the connector 53. Further, the vehicle-side connector 200 is provided with a harness 210 electrically connected to the terminal.

[0018] When the connector 53 and the vehicle-side connector 200 are attached, their terminals are electrically connected to each other. The electronic device 100 is electrically connected to the in-vehicle device via the vehicle-side connector 200 and the harness 210. Note that the connector 53 corresponds to an external connection connector, and the vehicle-side connector 200 corresponds to a mating connector.

[0019] <Case> As shown in FIGS. 1 and 2, the case 10 includes a base 20, a lid member 30, and a front cover 40. In FIG. 1, the first cover portion 41 of the front cover 40 and the lid member 30 are shown in a simplified manner. The base 20 and the lid member 30 correspond to the housing portion. That is, in the present embodiment, as an example, a housing portion including the base 20 and the lid member 30 is adopted.

[0020] As shown in FIG. 2, the base 20 has a bottom wall 21 and side walls 22 continuous with the bottom wall 21. Further, a pedestal 23 on which the circuit board 50 is mounted is provided on the bottom wall 21. The pedestal 23 is also a portion where the circuit board 50 is fixed. The pedestal 23 is a protruding member compared to the periphery. The pedestal 23 is provided, for example, at four locations on the bottom wall 21. In FIG. 2 and the like, only some of the pedestals 23 are shown in order to simplify the drawing. Also, it can be said that the base 20 has side walls 22 on three sides.

[0021] The lid member 30 is provided so as to face the surface of the wiring board 51. The lid member 30 is attached so as to sandwich a part of the circuit board 50 between it and the base 20. Also, the lid member 30 is, for example, screwed and fixed to the base 20 together with the circuit board 50. Note that the configuration and attachment structure of the lid member 30 are not particularly limited. For example, in a configuration where the connector 53 is mounted on the back surface of the wiring board 51, the connector 53 is disposed between the wiring board 51 and the bottom wall 21. And the lid member 30 may be in annular contact with the surface of the wiring board 51 so as to surround all the circuit components 52.

[0022] Furthermore, the configuration of the accommodating portion is not limited to the above. The present disclosure can also be adopted for an accommodating portion in which the base 20 and the lid member 30 are configured as an integral body. That is, the accommodating portion may also have a configuration including a bottom wall 21, a side wall 22 continuous with the bottom wall 21, and an upper wall continuous with the side wall 22 and facing the bottom wall 21.

[0023] Also, as shown in FIG. 2, the front cover 40 is provided so as to face the first end surface OS1 of the base 20 and the second end surface OS2 of the lid member 30. The first end surface OS1 is the end surface of the bottom wall 21 and the side wall 22. In the present embodiment, as an example, end surfaces OS1 and OS2 that are flat surfaces are adopted.

[0024] The front cover 40 is fixed to the base 20 with bolts 60. That is, the front cover 40 is fixed to the base 20 by screwing. Also, it can be said that the front cover 40 is fixed to the base 20 in a structure in which the base 20, the lid member 30, and the circuit board 50 are fixed.

[0025] Note that screw holes 61 into which the bolts 60 are inserted are provided in the front cover 40. On the other hand, female screws corresponding to the male screws of the bolts 60 are provided in the base 20. The front cover 40 will be described in detail later.

[0026] As described above, the case 10 is formed by assembling the base 20, the lid member 30, and the front cover 40. Further, the case 10 forms an accommodation space 24 for the circuit board 50 by the base 20, the lid member 30, and the front cover 40. Note that the base 20 and the lid member 30 can also be said to be members that form the accommodation space 24 for the circuit board 50 together with the front cover 40. Note that the front cover 40 can also be said to form an annular wall of the case 10 together with the side wall 22.

[0027] The front cover 40 corresponds to a cover. Hereinafter, when there is no need to distinguish between the base 20 and the lid member 30, it is also referred to as an accommodation part. The state in which the base 20, the lid member 30, and the front cover 40 are assembled is also simply referred to as an assembled state.

[0028] Note that the front cover 40 can be said to be fixed to the accommodation part by screwing. However, the front cover 40 may be fixed to the accommodation part by a method different from screwing. For example, the front cover 40 and the accommodation part may be fixed by a snap fit. In this case, the electronic device 100 does not need to use the bolt 60 and the number of parts can be reduced.

[0029] Furthermore, the front cover 40 may be fixed to the accommodation part by heat caulking or the like. Even in this case, the electronic device 100 does not need to use the bolt 60 and the number of parts can be reduced.

[0030] <Front cover> Here, the front cover 40 will be described with reference to FIGS. 2 to 5. FIG. 4 shows the front cover 40 in a state where it is not assembled to the base 20 and the lid member 30.

[0031] As shown in FIG. 2, the front cover 40 includes two members, a first cover portion 41 and a second cover portion 42. The front cover 40 is provided with an opening where the connector 53 is disposed. In other words, the front cover 40 is provided with a through hole so that the connector 53 and the vehicle-side connector 200 can be connected. The opening can be referred to as an opening for a connector, a connector placement hole, a connector insertion hole, etc.

[0032] In this embodiment, as an example, the front cover 40 provided with two openings for connectors is adopted. However, the front cover 40 only needs to be provided with at least one opening for a connector. Therefore, the front cover 40 may be provided with three or more openings for connectors.

[0033] As shown in FIG. 2 and the like, the front cover 40 is provided in the order of the first cover portion 41 and the second cover portion 42 from the side of the accommodation space 24. Therefore, it can be said that the first cover portion 41 is one of the parts forming the accommodation space 24. On the other hand, the second cover portion 42 can be said to be one of the parts exposed to the outside of the case 10. More specifically, a first end portion EF1, which is an end portion of the second cover portion 42, forms a part of the surface of the case 10.

[0034] First, the second cover portion 42 will be described. The second cover portion 42 is a hard material. The second cover portion 42 is composed mainly of, for example, a hard resin. The hard resin is polypropylene or the like. Note that polypropylene is a hard resin of a propylene polymer. That is, the second cover portion 42 is composed of a general-purpose plastic. The second cover portion 42 is harder than the first cover portion 41. Also, the second cover portion 42 has electrical insulation properties. Therefore, the second cover portion 42 can be made lighter than a component mainly composed of metal.

[0035] However, the constituent material of the second cover portion 42 is not limited to the above. The second cover portion 42 may be a hard material having conductivity. For example, the second cover portion 42 may be composed mainly of a metal such as aluminum, copper, or iron. In this case, the second cover portion 42 can improve the shielding property against noise more than that composed mainly of a hard resin. Also, the second cover portion 42 can improve the rigidity more than that composed mainly of a hard resin.

[0036] As shown in FIGS. 2, 3, and 5, the second cover portion 42 is a rectangular member. The second cover portion 42 is provided with a second opening 42h which is a part of the opening for the connector. The second opening 42h is a through hole that opens in the thickness direction of the second cover portion 42. In the present embodiment, the second cover portion 42 provided with two second openings 42h is adopted.

[0037] The second opening 42h has a larger opening area than the first opening 41h which will be described later. That is, the second opening 42h has a larger opening area than the first opening 41h where the same connector 53 is arranged. Also, it can be said that the second opening 42h has a larger opening area than the first opening 41h in the second opening 42h and the first opening 41h that form one opening for the connector. Note that the second opening 42h and the first opening 41h that form one opening for the connector can also be referred to as an opening pair.

[0038] Next, the first cover portion 41 will be described. The first cover portion 41 is a soft material. The first cover portion 41 is composed mainly of, for example, a soft resin. The soft resin is an elastomer or the like. Note that an elastomer is a soft resin having rubber elasticity. Therefore, the first cover portion 41 can elastically return to its original shape after tensile deformation or compressive deformation. Also, the first cover portion 41 has electrical insulation.

[0039] However, the constituent material of the first cover portion 41 is not limited to the above. The first cover portion 41 may be a soft material having conductivity. Further, the first cover portion 41 may be a material in which a conductive filler is mixed into a soft resin. In this case, the first cover portion 41 can improve the shielding property against noise more than a material having electrical insulation.

[0040] As shown in FIG. 2, the first cover portion 41 is a rectangular member. The first cover portion 41 is provided with a first opening 41h which is a part of the opening for the connector. The first opening 41h is a through hole that opens in the thickness direction of the first cover portion 41. In the present embodiment, the first cover portion 41 provided with two first openings 41h is adopted.

[0041] As shown in FIGS. 2, 3, 4, and 5, the first cover portion 41 includes a base portion 411, a protruding portion 412, and a base rib 413. The base portion 411 is provided with the first opening 41h. Therefore, the first cover portion 41 includes a portion forming the first opening 41h.

[0042] The portion forming the first opening 41h is provided in an annular shape along the outer periphery of the connector 53. The portion forming the first opening 41h has a protruding portion 412 that protrudes at least partially outside the accommodation space 24. The protruding portion 412 is a portion for preventing foreign matter from entering the accommodation space 24.

[0043] The protruding portion 412 is a portion continuous with the base portion 411 and is a portion bent with respect to the base portion 411. Further, the protruding portion 412 protrudes from the base portion 411 to the side opposite to the accommodation space 24 (outside).

[0044] As shown in FIG. 2, the protruding portion 412 is provided so as to reach within the second opening 42h. In particular, it is preferable that the protruding portion 412 is disposed closer to the accommodation space 24 side than the second end portion EF2 of the vehicle-side connector 200. Thereby, the electronic device 100 can more easily connect the vehicle-side connector 200 to the connector 53. Furthermore, the electronic device 100 can expand the applicable range of the shape of the vehicle-side connector 200. Note that the second end portion EF2 is the end portion on the harness 210 side of the vehicle-side connector 200. The second end portion EF2 corresponds to the end portion on the harness side.

[0045] As shown in FIG. 2, the protruding portion 412 is provided to face the side surfaces S1 to S4 of the connector 53. Furthermore, the protruding portion 412 is provided so as to be in contact with the side surfaces S1 to S4 of the connector 53. The protruding portion 412 is made of a soft material. Therefore, the protruding portion 412 can contact the side surfaces S1 to S4 of the connector 53 with a relatively low load.

[0046] The protruding portion 412 has the same thickness as the base portion 411. However, the protruding portion 412 may be provided thicker than the base portion 411. Thereby, the electronic device 100 can further improve the effect of suppressing the intrusion of foreign matter by the protruding portion 412.

[0047] Note that the portion forming the first opening 41h includes a part of the base portion 411 and the protruding portion 412. However, the first cover portion 41 can also be regarded as having the protruding portion 412 as the portion forming the first opening 41h.

[0048] As shown in FIG. 3, in the present embodiment, as an example, a protruding portion 412 provided in a ring shape is adopted. That is, the protruding portion 412 is provided in a ring shape so as to surround the connector 53. However, the protruding portion 412 may be provided corresponding to only a part of the side surface of the outer periphery of the connector 53. For example, the protruding portion 412 may be provided facing only one side surface. Further, the protruding portion 412 may be provided facing only three consecutive side surfaces, only two consecutive side surfaces, or only two opposing side surfaces. Furthermore, the protruding portion 412 may be provided facing only a part of at least one side surface of the connector 53. The protruding portion 412 exemplified here is only an example.

[0049] In the present embodiment, as an example, a protruding portion 412 provided so as to be in contact with the side surfaces S1 to S4 of the connector 53 is adopted. However, the protruding portion 412 does not have to be in contact with the side surfaces S1 to S4. Also, only a part of the protruding portion 412 may be in contact with the side surfaces S1 to S4.

[0050] In the present embodiment, as an example, an example is adopted in which the portion where the base portion 411 and the protruding portion 412 are continuous is curved. However, the portion where the base portion 411 and the protruding portion 412 are continuous may be a right angle. In this case, the protruding portion 412 can also be said to be a thick portion where a part of the thickness of the base portion 411 is increased.

[0051] A part of the first cover portion 41 is arranged in contact with the second cover portion 42 and the accommodating portion in the assembled state. That is, the first cover portion 41 includes a portion arranged between the first end surface OS1 of the base 20 and the second cover portion 42, and between the second end surface OS2 of the lid member 30 and the second cover portion 42. Also, it can be said that a part of the first cover portion 41 is provided between the lid member 30 and the second cover portion 42, or between the base 20 and the second cover portion 42. Therefore, the electronic device 100 can suppress the intrusion of foreign matter into the accommodation space 24 from the portion where the first cover portion 41 is provided between the second cover portion 42 and the accommodating portion.

[0052] In addition, the first cover part 41 is made of a soft material. Therefore, the electronic device 100 can prevent the second cover part 42 and the lid member 30 from interfering with each other and applying stress to each other. Similarly, the electronic device 100 can prevent the second cover part 42 and the base 20 from interfering with each other and applying stress to each other.

[0053] Furthermore, the first cover part 41 is sandwiched between the second cover part 42 and the accommodating part. That is, the first cover part 41 is pressed by the second cover part 42 and the accommodating part in the assembled state. Thereby, the electronic device 100 can prevent the first cover part 41 and the second cover part 42 from separating from each other. It can also be said that the electronic device 100 can prevent the first cover part 41 and the second cover part 42 from peeling off. Therefore, the electronic device 100 can improve the durability of the front cover 40.

[0054] As shown in FIGS. 4 and 5, the rib 413 is a part that protrudes more than the periphery. The rib 413 is provided so as to protrude toward the accommodating space 24 side with respect to the base part 411. Therefore, the rib 413 protrudes on the side opposite to the protruding part 412. The rib 413 is provided in an annular shape. Also, the rib 413 is provided at positions facing the first end face OS1 and the second end face OS2.

[0055] The rib 413 is a part that contacts a part of the base 20 and the lid member 30 in the assembled state. That is, the rib 413 contacts the first end face OS1 and the second end face OS2 in the assembled state. Also, the rib 413 is pressed between the second cover part 42, the base 20, and the lid member 30. And as shown in FIG. 2, the rib 413 deforms due to the pressing force. Therefore, the electronic device 100 can improve the adhesion between the front cover 40, the base 20, and the lid member 30. Therefore, the electronic device 100 can further suppress the intrusion of foreign matter between the front cover 40 and the accommodating part.

[0056] Note that FIG. 2 shows a state where the rib 413 is completely crushed. However, the rib 413 may remain in a protruding shape.

[0057] As shown in FIG. 2, the front cover 40 is provided with a first cover portion 41 and a second cover portion 42 in contact with each other. More specifically, the first cover portion 41 and the second cover portion 42 are fixed and integrated. For example, the first cover portion 41 and the second cover portion 42 are fixed by crimping or adhesion. Also, the first cover portion 41 and the second cover portion 42 are fixed by outset molding. Further, when the second cover portion 42 is made of a hard resin as the main component, the first cover portion 41 and the second cover portion 42 are fixed by two-color molding.

[0058] In the present embodiment, as an example of the cover having the first cover portion 41 and the second cover portion 42, the front cover 40 is adopted. However, the present disclosure is not limited thereto. The cover having the first cover portion 41 and the second cover portion 42 can be applied to any member provided with an opening where the connector 53 in the case 10 is disposed.

[0059] <Effect> As described above, the electronic device 100 includes the front cover 40 having the second cover portion 42 made of a hard material in addition to the first cover portion 41 made of a soft material. Therefore, the electronic device 100 can ensure strength. That is, the electronic device 100 is more likely to satisfy the required strength against external stress.

[0060] Also, since a part of the first cover portion 41 of the electronic device 100 is provided along the outer periphery of the connector 53, the stress applied to the connector 53 can be reduced as compared with a configuration in which a cover made of a hard material is provided along the outer periphery of the connector 53.

[0061] Furthermore, the electronic device 100 has a configuration in which a portion forming the first opening 41h is provided in an annular shape along the outer periphery of the connector 53. And the portion forming the first opening 41h has a protruding portion 412 protruding at least partially outside the accommodation space 24.

[0062] Therefore, even if a foreign object tries to enter the accommodation space 24, the protruding portion 412 can be prevented from being turned up. That is, the protruding portion 412 is less likely to deform toward the accommodation space 24 even when stress is applied from the outside in the direction of the accommodation space 24. Thus, the electronic device 100 can improve the effect of suppressing the entry of foreign objects into the accommodation space 24. In addition, the electronic device 100 satisfies the IP40 requirement and is more likely to adapt to the above rules.

[0063] Note that it is preferable that the protruding portion 412 and the side surfaces S1 to S4 are made of a material with a friction coefficient of 0.5 or more between them. Thereby, even if a foreign object tries to enter the accommodation space 24 from the outside, the protruding portion 412 is less likely to slide with respect to the side surfaces S1 to S4. That is, even if stress is applied from the foreign object, the protruding portion 412 can be further prevented from being turned up. Thus, the electronic device 100 can further improve the effect of suppressing the entry of foreign objects into the accommodation space 24.

[0064] The preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the above embodiments at all, and various modifications are possible without departing from the spirit of the present disclosure.

[0065] Hereinafter, as other forms of the present disclosure, the second and third embodiments and modification examples 1 and 2 will be described. The above embodiments, the second and third embodiments, and modification examples 1 and 2 can be implemented independently, but can also be implemented in appropriate combinations. The present disclosure is not limited to the combinations shown in the embodiments, and can be implemented by various combinations. In other forms, the same components as those in the first embodiment are given the same reference numerals as those in the first embodiment.

[0066] (Second Embodiment) The electronic device 100a according to the second embodiment will be described with reference to FIG. 6. The same components as those in the first embodiment are given the same reference numerals as those in the first embodiment. The configuration of the lid member 30a of the electronic device 100a is different from that of the electronic device 100. The lid member 30a corresponds to the housing portion.

[0067] The lid member 30a includes an inclined surface on the second end face OS2. The second end face OS2 includes a portion that is inclined such that the distance from the outside to the accommodation space 24 side decreases as it goes from the outside to the accommodation space 24 side. The inclined surface of the second end face OS2 is in contact with the rib 413.

[0068] The electronic device 100a can achieve the same effects as the electronic device 100. Furthermore, the electronic device 100a can increase the contact area between the lid member 30a and the first cover portion 41. Therefore, the electronic device 100a can improve the effect of suppressing the intrusion of foreign matter between the lid member 30a and the front cover 40.

[0069] (Third Embodiment) The electronic device 100b according to the third embodiment will be described with reference to FIG. 7. The electronic device 100a is different from the electronic device 100 in the configuration of the front cover 40b. The front cover 40b is different from the front cover 40 in the position of the protruding portion 412. Note that the connector 53 is arranged across from the accommodation space 24 to the outside of the accommodation space 24 in the same manner as in the first embodiment.

[0070] The protruding portion 412 protrudes farther from the accommodation space 24 than the third end portion EF3 of the connector 53. That is, the protruding portion 412 is provided to protrude toward the vehicle-side connector 200 side rather than the connector 53. Also, the protruding portion 412 is provided to protrude toward the vehicle-side connector 200 side at at least a part of the outer periphery of the connector 53. In other words, the third end portion EF3 of the connector 53 is located on the accommodation space 24 side from the open end of the protruding portion 412. Note that the third end portion EF3 is the end of the portion of the connector 53 that is arranged outside the accommodation space 24. The third end portion EF3 corresponds to the outer end portion.

[0071] The electronic device 100b can achieve the same effects as the electronic device 100. Furthermore, the electronic device 100b can expand the applicable range of the shape of the vehicle-side connector 200.

[0072] As shown in FIG. 8, the front cover 40c of Modification 1 may include a first cover portion 41c in which the rib 413 is not provided. Further, as shown in FIG. 9, the front cover 40d of Modification 2 may be such that the second cover portion 42d is in contact with the protruding portion 412.

[0073] Although this disclosure has been described in accordance with the embodiments, it is understood that the disclosure is not limited to such embodiments and structures. The disclosure also includes various modifications and variations within the equivalent scope. In addition, although various combinations and forms are shown in this disclosure, other combinations and forms that include only one element, more, or less thereof are also within the scope and spirit of this disclosure.

[0074] (Disclosure of Technical Ideas) This specification discloses a plurality of technical ideas described in a plurality of claims listed below. Some claims may be described in a multiple dependent form in which a preceding claim is alternatively cited in a subsequent claim. Further, some claims may be described in a multiple dependent form that refers to another multiple dependent form claim. The claims described in these multiple dependent forms define a plurality of technical ideas.

[0075] (Technical Idea 1) An electronic device including a circuit board (50) provided with an external connection connector (53) and a case for housing the circuit board, wherein the case includes a cover (40, 40b to 40d) provided with an opening in which the external connection connector is disposed, and a housing portion (20, 30, 30a) that forms a housing space (24) for the circuit board together with the cover, wherein the cover includes a first cover portion (41, 41c) made of a soft material provided with a first opening (41h) that is a part of the opening, A second cover part (42, 42d), which is in contact with the first cover part and is a hard material provided with a second opening (42h) that is part of the opening and has a larger opening area than the first opening, The part forming the first opening is provided annularly along the outer periphery of the external connection connector and has a protruding part (412) that protrudes at least partially outside the accommodation space. An electronic device characterized by this.

[0076] (Technical idea 2) The electronic device according to technical idea 1, characterized in that a part of the first cover part is disposed in contact with the second cover part and the accommodation part.

[0077] (Technical idea 3) The electronic device according to technical idea 2, characterized in that the first cover part is sandwiched between the second cover part and the accommodation part.

[0078] (Technical idea 4) The electronic device according to technical idea 3, characterized in that the first cover part has a rib (413) that protrudes more than the periphery at a part in contact with a part of the accommodation part.

[0079] (Technical idea 5) The electronic device according to any one of technical ideas 1 to 4, wherein the second cover part is a hard material having conductivity.

[0080] (Technical idea 6) The electronic device according to any one of technical ideas 1 to 5, characterized in that the cover and the accommodation part are fixed by a snap fit.

[0081] (Technical idea 7) The external connection connector is disposed across from the accommodation space to the outside, The protruding portion protrudes further away from the accommodation space than the outer end portion (EF3) of the portion disposed outside the external connection connector, according to any one of Technical Ideas 1 to 6. The electronic device according to any one of claims 1 to 6.

[0082] (Technical Idea 8) The external connection connector is one to which a mating connector (200) provided with a harness (210) is connected. The protruding portion is disposed closer to the accommodation space side than the harness side end portion (EF2) of the mating connector, according to any one of Technical Ideas 1 to 7. The electronic device according to any one of claims 1 to 7.

[0083] (Technical Idea 9) The first cover portion is a soft material having conductivity, according to any one of Technical Ideas 1 to 8. The electronic device according to any one of claims 1 to 8.

Explanation of Reference Numerals

[0084] 10... case, 20... base, 21... bottom wall, 22... side wall, 23... pedestal, 24... accommodation space, 30, 30a... lid member, 40, 40b to 40d... front cover, 41, 41c... first cover portion, 411... base portion, 412... protruding portion, 413... rib, 41h... first opening, 42, 42d... second cover portion, 42h... second opening, 50... circuit board, 51... wiring board, 52... circuit component, 53... connector, 60... bolt, 61... screw hole, 100, 100a, 100b... electronic device, 200... vehicle-side connector, 210... harness

Claims

1. An electronic device comprising a circuit board (50) having an external connection connector (53), and a case for housing the circuit board, wherein the case includes a cover (40, 40b to 40d) provided with an opening in which the external connection connector is disposed, and a housing portion (20, 30, 30a) that forms a housing space (24) for the circuit board together with the cover, wherein the cover includes a first cover portion (41, 41c) made of a soft material provided with a first opening (41h) that is part of the opening, and a second cover portion (42, 42d) made of a hard material that is in contact with the first cover portion and is provided with a second opening (42h) that is part of the opening and has a larger opening area than the first opening, wherein a portion forming the first opening is provided annularly along the outer periphery of the external connection connector and has a protruding portion (412) that protrudes at least partially outside the housing space, and the electronic device is characterized by this.

2. The electronic device according to claim 1, wherein a part of the first cover portion is disposed in contact with the second cover portion and the housing portion.

3. The electronic device according to claim 2, wherein the first cover portion is sandwiched between the second cover portion and the housing portion.

4. The electronic device according to claim 3, wherein the first cover portion has a rib (413) that protrudes more than the periphery at a portion in contact with a part of the housing portion.

5. The electronic device according to any one of claims 1 to 4, wherein the second cover portion is made of a hard material having conductivity.

6. The electronic device according to any one of claims 1 to 4, wherein the cover and the housing portion are fixed by a snap fit.

7. The external connection connector is disposed across from the housing space to the outside, and the protruding portion protrudes farther away from the housing space than an outer end portion (EF3) of a portion of the external connection connector disposed outside, and the electronic device is characterized by this according to any one of claims 1 to 4.

8. The external connection connector is for connecting to a mating connector (200) provided with a harness (210), and the protruding portion is disposed closer to the housing space side than a harness side end portion (EF2) in the mating connector, and the electronic device is characterized by this according to any one of claims 1 to 4.

9. The electronic device according to any one of claims 1 to 4, wherein the first cover portion is a soft material having conductivity.

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