JP2019161194A - Case for electronic device and electronic device - Google Patents

Abstract

To reduce occurrence of abnormal noise caused by a substrate.SOLUTION: A case 1 for an electronic device includes a first restriction part 24 and a second restriction part 25. The first restriction part 24 applies elastic force to a substrate 4 from a first direction to restrict movement of the substrate 4 in the first direction in a storage state where the substrate 4 is stored in a storage space S1 formed by a first coupling body and a second coupling body. The second restriction part 25 enters into a through hole provided at the substrate 4 to restrict movement of the substrate 4 in a second direction intersecting with the first direction in the storage state.SELECTED DRAWING: Figure 1

Description

  The present disclosure generally relates to an electronic device case and an electronic device, and more particularly relates to an electronic device case that houses therein a substrate for realizing the function of the electronic device, and an electronic device including the electronic device case. .

  2. Description of the Related Art Conventionally, an electrical junction box equipped in an automobile or the like is known (for example, see Patent Document 1). The electrical junction box described in Patent Document 1 includes a junction box main body that houses an insulating substrate and the like, and a waterproof cover that closes an opening on the upper surface of the junction box main body.

JP 2003-37913 A

  In the electrical junction box (electronic device case) described in Patent Document 1, there is a problem that abnormal noise is generated by the vibration of the insulating substrate (substrate) housed therein.

  An object of the present disclosure is to provide an electronic device case and an electronic device that can reduce the occurrence of abnormal noise due to a substrate.

  An electronic device case according to an aspect of the present disclosure includes a first combined body, a second combined body, a first restricting portion, and a second restricting portion. The second combined body is attached to the first combined body from the first direction, and forms a storage space for storing a substrate for realizing the function of the electronic device between the first combined body. The first restricting portion restricts the movement of the substrate in the first direction by applying an elastic force to the substrate from the first direction which is the thickness direction of the substrate in the accommodated state where the substrate is accommodated in the accommodating space. The second restricting portion restricts the movement of the substrate in the second direction intersecting the first direction by entering the through hole provided in the substrate in the housed state.

  An electronic device according to an aspect of the present disclosure includes an electronic device case and a substrate.

  According to the present disclosure, it is possible to reduce the occurrence of abnormal noise due to the substrate.

FIG. 1 is a cross-sectional view of an electronic apparatus according to an embodiment of the present disclosure. FIG. 2 is an exploded perspective view of the electronic device. FIG. 3A is a cross-sectional view of a first main part of the electronic apparatus according to the embodiment. FIG. 3B is a cross-sectional view of a second main part of the electronic device. FIG. 4 is an overall perspective view of the electronic apparatus. FIG. 5 is an exploded perspective view of an electronic device case according to Modification 1 of the embodiment of the present disclosure. FIG. 6 is an exploded perspective view of an electronic apparatus according to Modification 2 of the embodiment of the present disclosure. FIG. 7A is a cross-sectional view of a substantial part of an electronic device case according to Modification 3 of the embodiment of the present disclosure. FIG. 7B is a cross-sectional view of a substantial part of an electronic device case according to Modification 4 of the embodiment of the present disclosure.

(1) Overview Hereinafter, an overview of the electronic device case 1 and the electronic device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2.

  The electronic device 10 according to the present embodiment is an engine control unit (ECU) mounted on a vehicle such as an automobile or a motorcycle. As shown in FIGS. 1 and 2, the electronic device 10 according to the present embodiment includes an electronic device case 1 and a substrate 4 accommodated in the electronic device case 1.

  The electronic device case 1 includes a first case 2 as a first combined body and a second case 3 as a second combined body. That is, in the present embodiment, both the first combined body and the second combined body are cases. The second case 3 is attached to the first case 2 from the first direction, and forms a storage space S1 for storing the substrate 4 between the second case 3 and the first case 2. On the substrate 4, electronic components (for example, a microcomputer) for realizing the functions of the electronic device 10 are mounted.

  The electronic device case 1 further includes a first restricting portion 24 and a second restricting portion 25. The first restricting unit 24 applies the elastic force to the substrate 4 from the first direction, which is the thickness direction of the substrate 4, in the storage state in which the substrate 4 is stored in the storage space S <b> 1. Regulate the movement of The 2nd control part 25 controls the movement of the board | substrate 4 to the 2nd direction which cross | intersects a 1st direction by entering the through-hole 41 provided in the board | substrate 4 in the said accommodation state. The second restricting portion 25 protrudes from the first case 2 toward the second case 3 in the first direction. The 2nd control part 25 is a shape which becomes thin, so that the 2nd case 3 is approached. That is, the second restricting portion 25 is tapered.

  In the electronic device case 1 and the electronic device 10 according to this embodiment, as described above, the movement of the substrate 4 in the first direction can be restricted by the first restricting portion 24, and the second restricting portion 25 can The movement of the substrate 4 in two directions can be restricted. For this reason, the board | substrate 4 can be fixed with respect to case 1 for electronic devices, As a result, generation | occurrence | production of the noise by the board | substrate 4 can be reduced.

(2) Details Hereinafter, details of the electronic device case 1 and the electronic device 10 according to the present embodiment will be described with reference to FIGS. FIG. 1 is a cross-sectional view of an electronic apparatus 10 according to this embodiment. FIG. 2 is an exploded perspective view of the electronic device 10 according to the present embodiment. FIG. 3A is a cross-sectional view of the first main part of the electronic device case 1 according to the present embodiment. FIG. 3B is a cross-sectional view of the second main part of the electronic device case 1 according to the present embodiment. FIG. 4 is an overall perspective view of the electronic apparatus 10 according to the present embodiment.

  Hereinafter, the direction in which the first case 2 and the second case 3 are arranged will be referred to as the up-down direction, and the first case 2 side as viewed from the second case 3 will be described as the upper side, and vice versa. In the following description, the direction in which the pair of elastic bodies 241 and 241 of the first restricting portion 24 are arranged will be described as the front-rear direction. Further, in the following, the direction in which the two first restricting portions 24 are arranged will be described as the left-right direction.

  However, these directions are not intended to define the usage direction of the electronic device case 1 and the electronic device 10. Further, the arrows indicating “front”, “rear”, “left”, “right”, “upper”, and “lower” in the drawings are merely shown for explanation, and do not involve an entity.

  1, 2, 3 A, 3 B, 4, 5, 6, 7 A, and 7 B referred to in the following embodiments and the like are all schematic views. The ratio of the size and thickness of each component does not always reflect the actual dimensional ratio.

(2.1) Case for Electronic Device As shown in FIGS. 1 and 2, a case 1 for an electronic device includes a first case 2 as a first combined body, a second case 3 as a second combined body, A plurality (two in the illustrated example) of the first restricting portions 24 and a plurality (four in the illustrated example) of the second restricting portions 25 are provided.

(2.1.1) First Case The first case 2 is made of, for example, polypropylene (PP). The first case 2 has a thin rectangular box shape in which an opening 20 is provided on one surface (lower surface). The first case 2 includes a bottom plate 21, a pair of first side plates 22 facing each other in the front-rear direction, and a pair of second side plates 23 facing each other in the left-right direction.

  The bottom plate 21 has a rectangular shape in a plan view when viewed from above and below.

  The pair of first side plates 22 has a rectangular shape in plan view when viewed from the front-rear direction, and protrudes downward (second case 3 side) from both ends of the bottom plate 21 in the front-rear direction. One (front side) first side plate 22 of the pair of first side plates 22 has a first hole 221. The first hole 221 has a rectangular shape that is long in the left-right direction and penetrates in the front-rear direction. The first hole 221 is provided at the center in the left-right direction of the first side plate 22.

  The pair of second side plates 23 is a rectangular shape that is long in the front-rear direction when viewed from the left-right direction, and protrudes downward from both ends of the bottom plate 21 in the left-right direction. Each of the pair of second side plates 23 has a hole portion 231. Each hole 231 has a rectangular shape that is long in the front-rear direction and penetrates in the left-right direction.

  Each of the pair of second side plates 23 further has a pair of first fixing portions 232. Each of the pair of first fixing portions 232 is, for example, a protrusion protruding in the thickness direction (left-right direction) of the second side plate 23. The pair of first fixing portions 232 are respectively provided on both sides of the hole portion 231 in the front-rear direction.

(2.1.2) Second Case Similar to the first case 2, the second case 3 is made of, for example, polypropylene. The second case 3 has a thin rectangular box shape having an opening 30 on one surface (upper surface), and has substantially the same outer dimensions (left and right dimensions and front and rear dimensions) as the first case 2. The second case 3 includes a bottom plate 31, a pair of first side plates 32 facing each other in the front-rear direction, and a pair of second side plates 33 facing each other in the left-right direction.

  The bottom plate 31 has a rectangular shape in a plan view when viewed from above and below.

  The pair of first side plates 32 has a rectangular shape in a plan view as viewed from the front-rear direction and is long in the left-right direction, and protrudes upward (from the first case 2 side) from both ends of the bottom plate 31 in the front-rear direction. One (front side) first side plate 32 of the pair of first side plates 32 has a second hole portion 321. The second hole 321 has a rectangular shape that is long in the left-right direction and penetrates in the front-rear direction. The second hole portion 321 is provided in the center portion in the left-right direction of the first side plate 32.

  The pair of second side plates 33 is a rectangular shape that is long in the front-rear direction when viewed from the left-right direction, and protrudes upward from both ends of the bottom plate 31 in the left-right direction. Each of the pair of second side plates 33 is integrally formed with a protruding wall portion 36. Each protruding wall portion 36 has a rectangular shape that is long in the front-rear direction when viewed from the left-right direction. Each protruding wall portion 36 has a pair of second fixing portions 361. Each of the pair of second fixing portions 361 is a hole that penetrates the protruding wall portion 36 in the thickness direction (left-right direction). The pair of second fixing portions 361 are provided at positions corresponding to the pair of first fixing portions 232.

  In other words, the first case 2 has the first fixing portion 232 fixed to the second fixing portion 361 provided in the second case 3 in a state of being attached to the second case 3. The first fixing part 232 is located closer to the first restricting part 24 than the second restricting part 25.

  The second case 3 further includes a plurality (four in the illustrated example) of rod-shaped protrusions 34 and a plurality (four in the illustrated example) of mounting portions 35. The plurality of placement portions 35 are pedestals for placing the substrate 4 from the first direction which is the thickness direction of the substrate 4.

  The plurality of rod-shaped protrusions 34 are respectively provided at the four corners of the bottom plate 31 of the second case 3. Each of the plurality of bar-shaped protrusions 34 protrudes upward from the upper surface of the bottom plate 31. The outer diameter of each rod-shaped protrusion 34 is constant in the longitudinal direction.

  Each of the plurality of placement portions 35 has a rectangular shape in a plan view when viewed from the up and down direction. Each of the plurality of placement portions 35 is provided between two rod-like projections 34 adjacent to each other in the front-rear direction or the left-right direction among the plurality of rod-like projections 34 and at the center in the front-rear direction or the left-right direction.

(2.1.3) First restriction portion The plurality of first restriction portions 24 are formed integrally with the first case 2. That is, the plurality of first restricting portions 24 are made of polypropylene as in the first case 2. The plurality of first restricting portions 24 correspond one-to-one with the plurality of hole portions 231 provided in the first case 2. Each of the plurality of first restricting portions 24 faces the corresponding hole portion 231 among the plurality of hole portions 231 in the left-right direction (see FIG. 2). In other words, the 1st case 2 has the hole part 231 in the opposing surface (2nd side plate 23) with the 1st control part 24 in a 2nd direction.

  Each of the plurality of first restricting portions 24 has a pair of elastic bodies 241 as shown in FIGS. 1, 2, and 3 </ b> A. Each of the pair of elastic bodies 241 includes a support piece 242 and an elastic piece 243.

  The support piece 242 has a plate shape that is long in the vertical direction, and protrudes downward (on the second case 3 side) from the lower surface of the bottom plate 21 of the first case 2. The elastic piece 243 has an arcuate shape that curves downward, and protrudes from the tip (lower end) of the support piece 242 in a direction (front-rear direction) intersecting the protruding direction of the support piece 242. The elastic piece 243 can be bent in the thickness direction (vertical direction) of the substrate 4.

  As shown in FIGS. 1, 2, and 3 </ b> A, the pair of elastic bodies 241 are arranged at an interval in the front-rear direction so that the tips of the elastic pieces 243 do not contact each other. In other words, the pair of elastic bodies 241 are arranged with an interval in the arrangement direction (front-rear direction) of the pair of elastic bodies 241. That is, in the present embodiment, the pair of elastic bodies 241 are separate bodies. In this configuration, the elastic force generated by the pair of elastic bodies 241 can be reduced as compared with the case where the pair of elastic bodies 241 are integrally formed.

  In each of the plurality of first restricting portions 24, in the storage state in which the substrate 4 is stored in the storage space S <b> 1, the pair of elastic bodies 241 has the top surface (one surface) of the substrate 4 from the first direction that is the thickness direction of the substrate 4. ). As a result, each of the plurality of first restricting portions 24 can restrict the movement of the substrate 4 in the first direction.

(2.1.4) Second restriction portion The plurality of second restriction portions 25 are formed integrally with the first case 2. That is, the plurality of second restricting portions 25 are made of polypropylene, as in the first case 2. The plurality of second restricting portions 25 are provided at the four corners of the bottom plate 21 of the first case 2 and at positions corresponding to the plurality of bar-shaped protrusions 34 of the second case 3 in the vertical direction.

  Each of the plurality of second restricting portions 25 protrudes downward (second case 3 side) from the lower surface of the bottom plate 21 of the first case 2. Each of the plurality of second restricting portions 25 has, for example, a truncated cone shape. In other words, the 2nd control part 25 is a shape which becomes thin, so that it approaches the 2nd case 3 (it goes below). In the present embodiment, the inclination angle (taper angle) of the second restricting portion 25 is θ1 (see FIG. 3B). In the example shown in FIG. 3B, the outer diameter of the distal end portion of the second restricting portion 25 is smaller than the inner diameter of a through hole 41 (described later) of the substrate 4 and is a size that can be inserted into the through hole 41.

  In the storage state in which the substrate 4 is stored in the storage space S1, the second restricting portion 25 enters the through hole 41 of the substrate 4, thereby restricting the movement of the substrate 4 in the second direction intersecting the first direction. can do. Here, in the “state where the second restricting portion 25 enters the through hole 41”, the outer peripheral surface of the second restricting portion 25 and the side peripheral surface of the through hole 41 are in contact with each other, and The state in which there is a gap between the outer peripheral surface of the second restricting portion 25 and the side peripheral surface of the through hole 41 is included. In addition, the “gap” here refers to a gap that can regulate the movement of the substrate 4 in the second direction in a state where the second restricting portion 25 enters the through hole 41. Accordingly, as described above, the second restricting portion 25 may not have a shape that becomes thinner as it approaches the second case 3, and can move the substrate 4 in the second direction by entering the through hole 41. Any shape can be used.

  Moreover, each 2nd control part 25 has the penetration hole 251 (refer FIG. 3B) formed along the longitudinal direction (up-down direction). In the state where the first case 2 is attached to the second case 3, the rod-like protrusions 34 corresponding to the insertion holes 251 of the second restricting portions 25 are inserted (see FIG. 3B).

  In the present embodiment, each of the plurality of first restricting portions 24 is located between two second restricting portions 25 adjacent in the front-rear direction, as shown in FIGS. 1 and 2. In other words, the first restricting portion 24 is located between two adjacent second restricting portions 25 among the plurality of second restricting portions 25. Moreover, in this embodiment, as shown in FIG.1 and FIG.2, both the 1st control part 24 and the 2nd control part 25 are provided in the 1st case 2. As shown in FIG.

(2.2) Substrate The substrate 4 is a printed wiring board made of glass epoxy resin, for example. The substrate 4 has a rectangular shape when viewed from the top and bottom. Since the substrate 4 is stored in the storage space S1 formed by the first case 2 and the second case 3, the outer dimensions (front and rear dimensions and left and right dimensions) of the substrate 4 are the first case 2 and the second case 3. Smaller than the outer dimensions (front and rear dimensions and left and right dimensions).

  The substrate 4 has a plurality of (four in the illustrated example) through holes 41. The plurality of through holes 41 have a circular shape penetrating in the thickness direction (vertical direction) of the substrate 4 and are respectively provided at the four corners of the substrate 4. The plurality of through holes 41 correspond one-to-one with the plurality of second restricting portions 25.

  On the upper surface of the substrate 4, a connector 5 for electrically connecting to an external device is mounted. The connector 5 has a rectangular parallelepiped shape that is long in the left-right direction, and is mounted on the front end portion of the upper surface of the substrate 4. The external device is, for example, a sensor (object detection device) mounted on the vehicle. Further, electronic components (for example, a microcomputer) for realizing the function of the electronic device 10 are mounted on the upper surface and the lower surface of the substrate 4.

  As described above, in the electronic device case 1 according to the present embodiment, both the first restricting portion 24 and the second restricting portion 25 are provided in the first case (first combined body) 2. The second case (second combined body) 3 has a placement portion 35 on which the substrate 4 is placed. According to this configuration, the second case 3 only needs to be provided with the mounting portion 35, and the structure of the second case 3 can be simplified.

  Moreover, in the case 1 for electronic devices which concerns on this embodiment, the 1st case 2 is a case where the opening part 20 is provided in the whole surface. The first restricting portion 24 is provided in the first case 2. The first case 2 has a hole 231 on the surface facing the first restricting portion 24 in the second direction. The second case 3 has a protruding wall portion 36 that closes the hole portion 231 when attached to the first case 2. According to this configuration, the hole portion 231 of the first case 2 can be blocked by the protruding wall portion 36 of the second case 3, so that the hole portion 231 is not blocked by the protruding wall portion 36. Electrostaticity can be improved.

  Furthermore, in the electronic device case 1 according to the present embodiment, the first restricting portion 24 is provided in the first case 2. The first case 2 has a first fixing portion 232 that is fixed to a second fixing portion 361 provided in the second case 3 in a state of being attached to the second case 3. The first fixing part 232 is located closer to the first restricting part 24 than the second restricting part 25. According to this aspect, there is an advantage that a gap is hardly formed between the first case 2 and the second case 3 by the elastic force from the first restricting portion 24.

(3) Assembling Method Next, an assembling method of the electronic device 10 according to the present embodiment will be briefly described.

  First, the operator stores the board 4 in the second case 3 with the connector 5 mounted on the board 4 facing upward. At this time, the substrate 4 is placed on a plurality of placement portions 35 provided on the bottom plate 31 of the second case 3. At this time, the connector 5 is disposed along the second hole 321.

  Next, the operator attaches the first case 2 to the second case 3 in such a direction that the opening 20 of the first case 2 is on the lower side (second case 3 side). At this time, the first case 2 is assembled to the second case 3 by fixing the pair of first fixing parts 232 to the pair of second fixing parts 361. The substrate 4 is stored in a storage space S <b> 1 formed by the first case 2 and the second case 3.

  In a state where the first case 2 is assembled to the second case 3, the rectangular connector insertion portion 40 is configured by the first hole portion 221 of the first case 2 and the second hole portion 321 of the second case 3. And the connector 5 mounted in the board | substrate 4 is penetrated by this connector insertion part 40 (refer FIG.1 and FIG.4).

  Further, in a state where the first case 2 is assembled to the second case 3, the pair of hole portions 231 provided in the first case 2 is blocked by the pair of protruding wall portions 36 provided in the second case 3. . In other words, the second case 3 has a protruding wall portion 36 that closes the hole portion 231 in a state of being attached to the first case 2. As described above, the hole portion 231 formed in the first case 2 is closed by the protruding wall portion 36, so that the electrostatic resistance is improved as compared with the case where the hole portion 231 is not blocked by the protruding wall portion 36. be able to.

(4) 1st principal part and 2nd principal part Next, the 1st principal part and 2nd principal part of case 1 for electronic devices which concern on this embodiment are demonstrated with reference to FIG. 3A and 3B.

  In a state where the first case 2 is attached to the second case 3, the elastic pieces 243 of the pair of elastic bodies 241 are in contact with the upper surface of the substrate 4 as shown in FIG. 3A. In this state, the pair of elastic pieces 243 is bent upward by a reaction force from the substrate 4, and applies a downward elastic force to the substrate 4. In other words, the pair of elastic pieces 243 is in contact with the upper surface (one surface) of the substrate 4 from the first direction, which is the thickness direction of the substrate 4, and applies an elastic force. As a result, the first restricting portion 24 including the pair of elastic bodies 241 can restrict the movement of the substrate 4 in the first direction with the placement portion 35.

  Further, in a state where the first case 2 is attached to the second case 3, each of the plurality of second restricting portions 25 is inserted into the corresponding through hole 41 among the plurality of through holes 41 as shown in FIG. 3B. ing. In other words, the 2nd control part 25 has penetrated the through-hole 41 provided in the board | substrate 4 in the accommodation state. In this state, each of the plurality of rod-shaped protrusions 34 is inserted into the insertion hole 251 of the corresponding second restricting portion 25 among the plurality of second restricting portions 25. Here, the 2nd control part 25 is a shape which becomes thin, so that the 2nd case 3 is approached. For this reason, in a state where the second restricting portion 25 is inserted into the through hole 41, the outer surface of the second restricting portion 25 is in contact with the upper end edge of the through hole 41. As a result, the movement of the substrate 4 in the second direction (the front-rear direction and the left-right direction) intersecting the first direction that is the thickness direction of the substrate 4 can be restricted by the second restricting portion 25.

  In the electronic device case 1 according to the present embodiment, the first restricting portion 24 can restrict the movement of the substrate 4 in the first direction (vertical direction), and the second restricting portion 25 can restrict the movement in the second direction (front-rear direction). And the movement of the substrate 4 in the left-right direction) can be restricted. For this reason, the board | substrate 4 can be fixed with respect to case 1 for electronic devices, As a result, generation | occurrence | production of the noise by the board | substrate 4 can be reduced.

(5) Modifications The above-described embodiment is only one of various embodiments of the present disclosure. The above-described embodiment can be variously changed according to the design or the like as long as the object of the present disclosure can be achieved. Hereinafter, modifications of the above-described embodiment will be listed. The modifications described below can be applied in appropriate combinations.

(5.1) Modification 1
In the above-described embodiment, the first case 2 and the second case 3 are separate bodies, but the first case 2 and the second case 3 may be integrated. Hereinafter, the electronic device case 1 according to Modification 1 will be described with reference to FIG. Note that the configurations of the first case 2 and the second case 3 are the same as those of the first case 2 and the third case 3 described in the above-described embodiment, and detailed description thereof is omitted here.

  As illustrated in FIG. 5, the electronic device case 1 according to the first modification includes a first case 2, a second case 3, and a hinge portion 6. In the first modification, the first case 2 and the second case 3 are integrated via the hinge portion 6. In this case, compared with the case where the first case 2 and the second case 3 are separate, the work of aligning the directions of the first case 2 and the second case 3 is unnecessary, and the assembly workability is correspondingly increased. There is an advantage of improvement.

(5.2) Modification 2
In the above-described embodiment, the first restricting portion 24 is configured by the pair of elastic bodies 241 protruding downward from the lower surface of the bottom plate 21 of the first case 2, but the first restricting portion 24A is part of the bottom plate 21A. May be configured. Hereinafter, an electronic apparatus 10A according to Modification 2 will be described with reference to FIG.

  As shown in FIG. 6, the electronic device 10A according to Modification 2 includes an electronic device case 1A and a substrate 4A housed inside the electronic device case 1A. The board 4A and the connector 5A mounted on the board 4A are the same as the board 4 and the connector 5 described in the above-described embodiment, and detailed description thereof is omitted here.

  The electronic device case 1A includes a first case 2A and a second case 3A.

  The first case 2A has a rectangular box shape in which an opening 20A is provided on one surface (lower surface). The first case 2A includes a bottom plate 21A, a pair of first side plates 22A, and a pair of second side plates 23A.

  The bottom plate 21 </ b> A has a rectangular shape in a plan view when viewed from the up-down direction. First restricting portions 24A are provided at the four corners of the bottom plate 21A. Each first restricting portion 24 </ b> A has a rectangular shape that is long in the front-rear direction when viewed from above and below. Each first restricting portion 24A can be bent in the vertical direction with a second end in the longitudinal direction as a fulcrum by a groove formed in a U shape from the first end in the longitudinal direction to both ends in the lateral direction (width direction). is there. Further, a second restricting portion 25A is integrally formed at the first end of each first restricting portion 24A. The second restricting portion 25A protrudes downward from the lower surface of the first end of the first restricting portion 24A.

  The pair of first side plates 22A has a rectangular shape in plan view when viewed from the front-rear direction, and protrudes downward from both ends of the bottom plate 21A in the front-rear direction. One (front side) first side plate 22A of the pair of first side plates 22A has a first hole 221A. The first hole 221A has a rectangular shape that is long in the left-right direction and penetrates in the front-rear direction.

  The pair of second side plates 23A has a rectangular shape in a plan view when viewed from the left-right direction, and protrudes downward from both ends of the bottom plate 21A in the left-right direction. Each of the pair of second side plates 23A has a pair of first fixing portions 232A. The pair of first fixing portions 232 </ b> A are arranged at an interval in the front-rear direction.

  The second case 3A has a rectangular box shape in which an opening 30A is provided on one surface (upper surface). The second case 3A includes a bottom plate 31A, a pair of first side plates 32A, and a pair of second side plates 33A.

  The bottom plate 31A has a rectangular shape in a plan view from the up-down direction. Bar-shaped protrusions 34A are provided at the four corners of the bottom plate 31A. In addition, four placement portions 35A are provided on the upper surface of the bottom plate 31A. Each mounting portion 35A is disposed between two rod-shaped protrusions 34A adjacent in the front-rear direction or the left-right direction. Note that the rod-shaped protrusion 34A and the mounting portion 35A are the same as the rod-shaped protrusion 34 and the mounting portion 35 described in the above-described embodiment, and detailed description thereof is omitted here.

  The pair of first side plates 32A has a rectangular shape in plan view when viewed from the front-rear direction, and protrudes upward from both ends of the bottom plate 31A in the front-rear direction. One (front side) first side plate 32A of the pair of first side plates 32A has a second hole 321A. The second hole 321A has a rectangular shape that is long in the left-right direction, and penetrates in the front-rear direction.

  The pair of second side plates 33A is a rectangular shape that is long in the front-rear direction when viewed from the left-right direction, and protrudes upward from both ends in the left-right direction of the bottom plate 31A. A pair of standing wall portions 36A are integrally formed with each of the pair of second side plates 33A. Each of the pair of standing wall portions 36A has a second fixing portion 361A. The second fixing portion 361A is, for example, a hole. The pair of standing wall portions 36 </ b> A are arranged at intervals in the front-rear direction on each second side plate 33 </ b> A.

  In a state in which the electronic device 10A according to Modification 2 is assembled, the second restriction portions 25A provided at the four corners of the first case 2A are inserted into the through holes 41A provided at the four corners of the substrate 4A, respectively. . In this state, each first restricting portion 24A is bent upward by the reaction force from the substrate 4A, and downward elastic force is applied to the substrate 4 via the second restricting portion 25A. Further, each second restricting portion 25 is in contact with the upper end edge of the corresponding through hole 41 by the elastic force from the corresponding first restricting portion 24A.

  Therefore, in the electronic device 10A according to Modification 2, the movement of the substrate 4A in the first direction (vertical direction) can be restricted by the first restricting portion 24A, and the second direction (front-rear direction) can be restricted by the second restricting portion 25A. And the movement of the substrate 4A in the left-right direction) can be restricted. For this reason, the board | substrate 4A can be fixed with respect to case 1A for electronic devices, As a result, generation | occurrence | production of the noise by board | substrate 4A can be reduced.

(5.3) Modification 3
In the above-described embodiment, each of the plurality of first restricting portions 24 has a pair of elastic bodies 241, but as shown in FIG. 7A, each of the plurality of first restricting portions 24 is one elastic body 241. You may have. Hereinafter, the principal part of the case 1 for electronic devices which concerns on the modification 3 is demonstrated with reference to FIG. 7A. The configuration of the elastic body 241 is the same as that of the elastic body 241 described in the above embodiment, and detailed description thereof is omitted here.

  In this case, when the two first restricting portions 24 are provided as in the case 1 for an electronic device according to the above-described embodiment, the one first restricting portion 24 and the other first restricting portion 24 The direction in which the elastic piece 243 protrudes is preferably reversed. For example, if the elastic piece 243 protrudes backward in the right first restricting portion 24 in FIG. 2, the elastic piece 243 protrudes forward in the left first restricting portion 24 in FIG. According to this configuration, even when each of the plurality of first restricting portions 24 has one elastic body 241, it is possible to apply elastic force to the substrate 4 in a balanced manner.

(5.4) Modification 4
In the above-described embodiment, the elastic pieces 243 of the pair of elastic bodies 241 arranged in the front-rear direction are protruded toward each other. However, as shown in FIG. You may make it project. Hereinafter, the principal part of the case for electronic devices which concerns on the modification 4 is demonstrated with reference to FIG. 7B.

  Each of the pair of elastic bodies 241B includes a support piece 242B and an elastic piece 243B. The support piece 242B protrudes downward from the lower surface of the bottom plate 21B of the first case 2B. The elastic piece 243B protrudes from the tip (lower end) of the support piece 242B in a direction crossing the protruding direction of the support piece 242B.

  In the electronic device case according to Modification 4, as shown in FIG. 7B, the elastic pieces 243B of the pair of elastic bodies 241B arranged in the front-rear direction are protruded in directions away from each other. According to this configuration, similarly to the above-described embodiment, the movement of the substrate 4 in the first direction (the thickness direction of the substrate 4) is restricted by the elastic force from the pair of elastic bodies 241B (first restriction portions 24B). can do.

(5.5) Other Modifications Other modifications of the above-described embodiment are listed below.

  In the above-described embodiment, the plurality of first restricting portions 24 are formed integrally with the first case 2, but the plurality of first restricting portions 24 may be separate from the first case 2. In this case, the plurality of first restricting portions are configured to apply an elastic force in the thickness direction (first direction) of the substrate 4 to the substrate 4 housed inside the electronic device case 1. For example, a leaf spring or the like may be used.

  In the above embodiment, the fixing structure of the first case 2 and the second case 3 is configured by the protrusion that is the first fixing portion 232 and the hole that is the second fixing portion 361 (so-called snap fit). The fixing structure is not limited to snap fit, and may be, for example, snapping, adhesion, welding, or the like.

  In the above-described embodiment, the plurality of second restricting portions 25 have a truncated cone shape, but the plurality of second restricting portions 25 are not limited to the truncated cone shape, and may be, for example, a trapezoidal shape. In this case, the movement of the board | substrate 4 to a 2nd direction (front-back direction, left-right direction) can be controlled by making the taper surface of a some 2nd control part contact the outer surface of the board | substrate 4. FIG. The plurality of second restricting portions may have other shapes as long as the second restricting portions become thinner as they approach the second case 3.

  In the above-described embodiment, both the first restricting portion 24 and the second restricting portion 25 are provided in the first case 2. However, for example, the first restricting portion 24 may be provided in the second case 3. . That is, the first restricting portion 24 may be provided in the first case 2 or provided in the second case 3 as long as it is configured to apply an elastic force to the substrate 4 from the first direction. It may be done.

  Further, the second restricting portion 25 may be configured to press fit into the through hole 41 of the substrate 4.

  In the above-described embodiment, both the first combined body and the second combined body are cases (first case 2 and second case 3). For example, one of the first combined body and the second combined body is a case, The other may be a lid. In this case, when the hole part facing the first restricting part is provided in the case, a protruding wall part that closes the hole part may be provided in the lid.

  In the above-described embodiment, the case where there are a plurality of the first restriction portions 24 and the second restriction portions 25 provided in the first case 2 has been described. However, at least one of the first restriction portion 24 and the second restriction portion 25 is described. One may be one. That is, both the 1st control part 24 and the 2nd control part 25 may be one, and either one of the 1st control part 24 and the 2nd control part 25 may be one.

(Summary)
As described above, the electronic device case (1; 1A) according to the first aspect includes the first case (2; 2A; 2B) as the first combined body and the second case as the second combined body. (3; 3A), a first restricting portion (24; 24A; 24B), and a second restricting portion (25; 25A). The second combined body is attached to the first combined body from the first direction (vertical direction), and the substrate (4; for realizing the function of the electronic device (10; 10A) between the second combined body and the first combined body. A storage space (S1) for storing 4A) is formed. The first restricting portion (24; 24A; 24B) is configured so that the substrate from the first direction, which is the thickness direction of the substrate (4; 4A), when the substrate (4; 4A) is stored in the storage space (S1) The movement of the substrate (4; 4A) in the first direction is restricted by applying an elastic force to (4; 4A). In the housed state, the second restricting portion (25; 25A) enters the through-hole (41; 41A) provided in the substrate (4; 4A) and thereby intersects the first direction with the second direction (front-rear direction and The movement of the substrate (4; 4A) in the left-right direction) is restricted.

  According to this aspect, the movement of the substrate (4; 4A) in the first direction can be regulated by the first regulating part (24; 24A; 24B), and the second regulating part (25; 25A) can regulate the second. The movement of the substrate (4; 4A) in the direction can be restricted. For this reason, a board | substrate (4; 4A) can be fixed with respect to a 1st coupling body and a 2nd coupling body, As a result, generation | occurrence | production of the noise by a board | substrate (4; 4A) can be reduced.

  In the electronic device case (1; 1A) according to the second aspect, in the first aspect, the second restricting portion (25; 25A) is directed from the first combined body to the second combined body in the first direction. It has a shape that protrudes and becomes thinner as it approaches the second combined body.

  According to this aspect, the movement of the substrate (4; 4A) in the second direction can be restricted by the second restricting portion (25; 25A).

  In the electronic device case (1; 1A) according to the third aspect, in the first or second aspect, both the first restricting portion (24; 24A; 24B) and the second restricting portion (25; 25A) are the first. One combined body is provided.

  According to this aspect, the regulation force for regulating the movement of the substrate (4; 4A) can be applied from one direction (the first combined body side).

  The electronic device case (1; 1A) according to the fourth aspect includes a plurality of second restricting portions (25; 25A) in any one of the first to third aspects. The first restricting portion (24; 24A) is located between two adjacent second restricting portions (25; 25A) among the plurality of second restricting portions (25; 25A).

  According to this aspect, it is possible to reduce the occurrence of abnormal noise due to the substrate (4; 4A).

  In the electronic device case (1) according to the fifth aspect, in any one of the first to fourth aspects, the first restricting portion (24; 24B) is a pair of elastic contacts with the substrate (4) in the housed state. It has a body (241; 241B). The pair of elastic bodies (241; 241B) are arranged with an interval in the arrangement direction of the pair of elastic bodies (241; 241B).

  According to this aspect, the elastic force by a pair of elastic body (241; 241B) can be made small compared with the case where a pair of elastic body (241; 241B) is formed integrally.

  The electronic device (10; 10A) according to the sixth aspect includes the electronic device case (1; 1A) of any one of the first to fifth aspects and the substrate (4; 4A).

  According to this aspect, the electronic device case (1; 1A) described above is provided, and the substrate (4; 4A) can be fixed to the first combined body and the second combined body. Generation of abnormal noise due to the substrate (4; 4A) can be reduced.

  About the structure which concerns on the 2nd-5th aspect, it is not an essential structure of case (1; 1A) for electronic devices, and can be abbreviate | omitted suitably.

1,1A Electronic device case 2,2A First case (first combined body)
20 opening part 24, 24A, 24B 1st control part 241 Elastic body 25, 25A 2nd control part 231 Hole 232 1st fixing part 3, 3A 2nd case (2nd coupling body)
35, 35A Placement part 36 Projection wall part 361 Second fixing part 4, 4A Substrate 41, 41A Through hole 10, 10A Electronic device S1 Storage space

Claims (6)

A first conjugate;
A second combined body, which is attached to the first combined body from a first direction and forms a storage space for storing a substrate for realizing a function of an electronic device between the first combined body;
In the storage state in which the substrate is stored in the storage space, the movement of the substrate in the first direction is regulated by applying an elastic force to the substrate from the first direction which is the thickness direction of the substrate. A first regulation unit;
A second restricting portion for restricting movement of the substrate in a second direction intersecting the first direction by entering a through hole provided in the substrate in the housed state;
Case for electronic equipment. The second restricting portion protrudes from the first combined body toward the second combined body in the first direction, and has a shape that becomes thinner as it approaches the second combined body.
The case for electronic devices according to claim 1. Both the first restricting portion and the second restricting portion are provided in the first combined body,
The case for electronic devices according to claim 1 or 2. A plurality of the second restriction portions;
The first restricting portion is located between two adjacent second restricting portions among the plurality of second restricting portions.
The case for electronic devices of any one of Claims 1-3. The first restricting portion has a pair of elastic bodies that contact the substrate in the housed state;
The pair of elastic bodies are arranged with an interval in the arrangement direction of the pair of elastic bodies,
The case for electronic devices of any one of Claims 1-4. The electronic device case according to any one of claims 1 to 5,
The substrate,
Electronics.

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