JP5880920B2 - Control device - Google Patents

Description

  The present invention relates to a control device in which a circuit board is accommodated in a form in which a connector portion projects outside in a board accommodation case.

  Conventionally, in the design of a board housing case for housing a circuit board on which various elements are mounted, the other is held by an engaging portion such as an engaging claw provided on one of two members (for example, a case main body and a cover). It has a structure for engaging and fixing. A through hole (connector exposure hole) for projecting the connector of the circuit board to be accommodated to the outside is formed in the board housing case in which the two members are engaged and fixed. This through hole is larger than the outer dimension of the connector. It is formed in a large shape, and is designed with a margin for the connector arrangement. Further, since the board housing case is configured by engaging and fixing two members, the position of the through hole is also affected by the assembly accuracy at the time of the engagement and fixing, so this through hole seems to have more margin. It is slightly larger.

  Specifically, in the design of a substrate housing case in which two members are engaged and fixed, the through hole has a variation in the size of the connector itself, a variation in the position and size of the assembly part of the two members, and the assembly. In this case, it is necessary to consider in advance that these variations such as variations in the positions of the through holes and the opening dimensions of the through holes are accumulated on the top, bottom, left and right of the substrate housing case. It cannot be avoided that the above gaps are formed.

Japanese Utility Model Publication No. 6-86379

  However, in recent years, there has been a report on the act of intentionally inserting a wire-like metal rod into the gap to cause damage, and countermeasures are required. Specifically, there is a demand for satisfying the IP40 standard in the IEC (International Electrotechnical Commission) standard which is an international standard. However, since it takes a lot of time and cost to re-design the parts of the substrate housing case by reviewing the design of each part of the substrate housing case, it is necessary to avoid them as much as possible. However, it is necessary to make it possible to realize in as simple a manner as possible so as not to increase the man-hours as much as possible. Further, as in Patent Document 1, it is desirable to avoid a large change in the external dimensions of the control device itself, because this may lead to a change in the design of the device on the side where the case is mounted.

  The subject of this invention is providing the control apparatus which reduced the clearance gap produced between a board | substrate storage case and a connector cheaply and in an easy form.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the first of the control devices of the present invention is:
By engaging and assembling a plurality of case forming members, a case body having an accommodating space is formed, and by this engaging and assembling, a connector exposure hole is formed on one surface of the case body , and on the outer peripheral side of the connector exposure hole. Is a substrate housing case having a peripheral portion forming a wall portion extending from the connector exposure hole toward the outer peripheral side so as to surround the connector exposure hole ;
A circuit board disposed in the housing space of the board housing case in such a manner that a connector part for external connection projects outside from the connector exposure hole;
A single member arranged to surround the outer periphery of the connector part protruding outward, and a gap is formed between the inner peripheral surface of the connector exposure hole and the outer peripheral surface of the connector part inserted into the connector exposure hole. A gap width reducing member disposed so as to cover at least one surface of the case body in which the connector exposure hole is formed so as to reduce the gap width while remaining,
The gap width reducing member is a plate material having a connector insertion hole in which the inner peripheral edge in the hole is located inside the connector exposure hole of the case body, and the connector portion is inserted into the connector insertion hole, It is attached to the peripheral part which forms one surface of the case body so as to overlap from the outside of the case body , and the attachment is made by adhering the back surface of the plate to the outer surface of the peripheral part .
The second of the control devices of the present invention is
By engaging and assembling a plurality of case forming members, a case body having an accommodating space is formed, and by this engaging and assembling, a connector exposure hole is formed on one surface of the case body , and on the outer peripheral side of the connector exposure hole. Is a substrate housing case having a peripheral portion forming a wall portion extending from the connector exposure hole toward the outer peripheral side so as to surround the connector exposure hole ;
A circuit board disposed in the housing space of the board housing case in such a manner that a connector part for external connection projects outside from the connector exposure hole;
A single member arranged to surround the outer periphery of the connector part protruding outward, and a gap is formed between the inner peripheral surface of the connector exposure hole and the outer peripheral surface of the connector part inserted into the connector exposure hole. A gap width reducing member that is disposed so as to cover at least the peripheral part forming one surface of the case body in which the connector exposure hole is formed from both the outer side and the inner side so that the gap width is reduced while remaining. When,
The provided, the gap width reducing member includes an inner cover portion covering the peripheral portion from the inside of the case body, and an outer covering portion covering the periphery from the outside of the case body, the inner periphery of the periphery of the cover portion thereof and out It has the connection part connected by the side, It is characterized by the above-mentioned.

  When a connector exposure hole for exposing the connector portion is provided in a case body (substrate housing case) formed by engaging and assembling a plurality of case forming members, the connector exposure hole is a variation in the external dimensions of the connector portion itself. Variations in various factors such as variations in positions and dimensions of the respective engagement assembly parts of the case forming members, variations due to the engagement assembly of the case forming members, variations in opening positions and opening dimensions when forming the connector exposure holes, etc. As the case body is finally formed, the position and shape of the case will vary greatly, and in order to insert the connector part that protrudes to the outside with certainty, it is a large one with a certain margin. Design is required. For this reason, in the conventional case body (board | substrate accommodating case), the comparatively big clearance gap was formed between the connector exposure hole and the connector part which penetrates it. According to the present invention, the gap width reducing member that covers the outer periphery of the connector exposure hole is disposed in the same manner that the connector part is inserted into the connector exposure hole through which the connector part is inserted. The gap width of the gap formed between the connector exposure hole and the connector portion inserted therethrough can be reduced. That is, the gap width reducing member of the present invention can be mounted without interfering with the connector within the manufacturing variation width, and can prevent the wire-shaped metal rod from entering from the outside.

  Specifically, the case body that accommodates the circuit board has a connector exposure hole for projecting the connector part of the circuit board to the outside, and this connector exposure hole is inserted without interfering with the connector part. Therefore, it is necessary to design the inner peripheral dimension (opening dimension) so as to project outward. However, as described above, until the case body is completed, there are various variations such as manufacturing variations of the case forming members and connector portions constituting the case body and assembly variations when engaging and assembling them. Therefore, there is a possibility that the connector portion cannot be inserted unless the inner peripheral dimension (opening dimension) of the connector exposure hole is designed to be relatively large. As a result, the connector exposure hole is designed and manufactured with a relatively large margin so that the connector exposure hole can be surely inserted without interfering with the connector portion even within the dispersion width accumulated in a complex manner. Thereby, when a connector part is inserted, a comparatively big clearance gap is produced between connector parts. On the other hand, the gap width reducing member according to the present invention also has a connector insertion hole through which the connector portion protruding to the outside from the connector exposure hole of the case body is inserted, and the connector portion is inserted without interfering with the connector insertion hole. Therefore, it is necessary to design the inner peripheral dimension (opening dimension). However, in the case of the gap width reducing member, it is possible to design so as not to interfere when the connector portion is inserted as long as the manufacturing variation between itself and the connector portion is taken into consideration. That is, there is no need to take into account variations occurring on the case body side, and only the relationship between the gap width reducing member itself and the connector portion needs to be considered. As a result, the connector insertion hole of the gap width reducing member is designed and manufactured to be smaller than the connector exposure hole of the case body, and when the connector part is inserted, a gap created between the connector part and the connector exposure hole The width is smaller than the gap created between the connector portion and the connector portion. In the present invention, the gap width reducing member is attached to the outside of the case body in such a manner that the connector portion protruding outside from the connector exposure hole of the case body is inserted, but the connector insertion hole of the gap width reducing member is attached to the case body. Since the hole is smaller than the connector exposure hole, the outer peripheral portion of the connector exposure hole is covered with the gap width reducing member. As a result, the width of the gap generated around the outer periphery of the connector portion is reduced, and it is possible to prevent the wire-like metal bar from entering.

  Further, in the present invention, the gap width can be easily reduced simply by attaching the gap width reducing member having the connector insertion hole as described above to the case body in such a manner that the connector portion is inserted through the connector insertion hole. There is also an advantage that can be. Further, since the gap width can be reduced by adding one member, it is not necessary to add much cost and man-hour.

  The gap width reducing member in the present invention can be a plate material having a connector insertion hole in which the inner peripheral edge of the hole is located inside the connector exposure hole of the case body, and the connector portion is inserted through the connector insertion hole. It can be configured to be attached to one surface of the case body. Thereby, the said clearance gap width can be easily reduced by attaching the plate material (plate material) which makes a clearance gap reduction member in the form which inserts the connector part which protrudes outside. Further, the external dimensions of the control device are not greatly changed.

  The gap width reducing member in the present invention can be configured to be attached in such a manner that the back surface of the plate is adhered to the outside of the peripheral portion of the connector exposure hole in the case body. In this case, the plate material (plate material) that forms the gap width reducing member is arranged in such a manner that the connector portion is inserted, and finally, the adhesive surface provided on the back surface of the plate body (connector exposure hole) Since it can be fixed by adhering (adhering) to the (having surface), assembly becomes easy.

  The gap width reducing member according to the present invention includes an inner covering portion covering the peripheral portion of the connector exposure hole in the case body from the inside, an outer covering portion covering from the outside, and the inner and outer covering portions covering the inner periphery of the connector exposure hole. And a connecting portion that is connected on the side. According to this configuration, by arranging the gap width reducing member so as to cover the inside and outside of the connector exposure hole in the case body, the connecting portion located on the inner peripheral side of the inner peripheral surface of the connector exposure hole, The gap width between the inner peripheral surface of the connector exposure hole and the outer peripheral surface of the connector portion can be reduced.

  The connector part in the present invention protrudes in a direction perpendicular to the protruding direction in the protruding direction to the outside of the case body, and a protruding part that prevents insertion of the gap width reducing member into the connector insertion hole in the protruding direction is formed. May be. In this case, the gap width reducing member may be configured to be capable of elastic deformation in which a cut is formed in a part of the annular shape surrounding the outer periphery of the connector portion and both sides of the cut are separated. When trying to assemble the gap width reducing member into the case body in such a way that the connector part is inserted through the connector insertion hole, if there is a projection as described above in the connector part, the insertion is hindered. Although it cannot be assembled to the case body, if the elastic deformation as described above is possible, it is possible to widen the connector insertion hole of the gap width reducing member by separating and widening both sides of the cut of the gap width reducing member, Accordingly, the connector portion can be inserted into the connector insertion hole of the gap width reducing member in a form avoiding the protruding portion. Further, if the connector insertion hole of the gap width reducing member can be widened, the rear side of the protruding part (the opposite side to the protruding direction of the connector part) can be obtained without inserting the connector part into the connector insertion hole of the gap width reducing member. It can also be placed directly at the position.

  The substrate housing case in the present invention has a first case forming member and a second case forming member, which are separately formed as a plurality of case forming members, and the first case forming member and the second case forming member. Can be integrated into a case body by engaging assembly. For example, the first case forming member and the second case forming member are each formed as a single resin injection molding. It can be a body. In this way, when the case forming members formed separately are formed by engaging assembly, the variation in the shape and position of the connector exposure hole is affected by the various variations already described, According to the present invention, even if there is such a variation, the width of the gap formed on the outer peripheral side of the connector portion can be reduced.

  In the substrate housing case of the present invention, the first case forming member is a case upper member including the upper surface of the case body, and the second case forming member is a case lower member including the lower surface of the case body, and the case upper member and By engaging and assembling the case lower member, a connector exposure hole is formed by the contact on the side surface (side surface of the case body) having both contact portions of the case upper member and the case lower member. Can be configured to be In this case, when the case upper member and the case lower member are assembled, the case upper member and the case lower member are in contact with each other on the side surface. Further, a connector exposure hole is formed on the side surface by this contact, that is, a non-contact portion exists between the side surface portion of the case upper member and the case lower member, and is formed between the portions. When the through hole to be formed is a connector exposure hole, the variation in the shape of the side surface portion of the case upper member and the side surface portion of the case lower member is also reflected in the variation in the shape and position of the connector exposure hole, and the variation further varies. However, according to the present invention, even if there is such a variation, the width of the gap formed on the outer peripheral side of the connector portion can be reduced.

  In the substrate storage case in the present invention, the first case forming member can be one side surface portion (cover member) of the case body in which the connector exposure hole is formed in the center, and the second case forming member is the case body. It can be set as the remainder part (case main body member) except a side part. In this case, a connector exposure hole is formed in the side surface in the case body by engaging and assembling the side surface portion with the remaining portion. According to this configuration, since the cover member having the connector exposure hole at the center is engaged with and assembled to one surface of the case body member, the position of the connector exposure hole varies depending on the engagement assembly. Although affected, according to the present invention, the width of the gap formed on the outer peripheral side of the connector portion can be reduced even if there is such a variation.

  The gap in the present invention is a gap that penetrates the inside and outside of the case body so that the inside of the case body can be seen from the outside, and the present inventors attach the gap width reducing member to the case body, The gap width could be 1 mm or less. As a result, a control device satisfying the IP40 standard was realized in an inexpensive and easy manner.

The disassembled perspective view of the control apparatus which is one Embodiment of this invention. The perspective view which shows the assembly completion state of the control apparatus of FIG. Sectional drawing which showed the A1-A1 cross section of FIG. 1 simply. Sectional drawing which showed the A2-A2 cross section of FIG. 2 simply. The side view which showed the side of the control apparatus of FIG. 1 simply. The side view which showed the side of the control apparatus of FIG. 2 simply. The front view which showed simply the front of the control apparatus of FIG. The elements on larger scale of FIG. The disassembled perspective view of the control apparatus which is the 1st modification of embodiment of FIG. The perspective view which shows the assembly completion state of the case body of the control apparatus of FIG. The perspective view which shows the assembly completion state of the control apparatus of FIG. The disassembled perspective view of the control apparatus which is the 2nd modification of embodiment of FIG. The perspective view which shows the assembly completion state of the case body of the control apparatus of FIG. The perspective view which shows the assembly completion state of the control apparatus of FIG. The fragmentary sectional enlarged view which expanded the connector exposure side in CC sectional drawing of the control apparatus of FIG.11 and FIG.14. The disassembled perspective view of the control apparatus which is the 3rd modification of embodiment of FIG. The perspective view which shows the assembly completion state of the control apparatus of FIG. The fragmentary sectional enlarged view which expanded the connector exposure side in DD sectional drawing of the control apparatus of FIG. The perspective view which shows the clearance gap reduction member used for the control apparatus which is a modification of embodiment of FIG.16 and FIG.17. The disassembled perspective view of the control apparatus which is a modification of embodiment of FIG.16 and FIG.17. The perspective view which shows the assembly completion state of the control apparatus of FIG.

  Hereinafter, an embodiment of a control device of the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded perspective view of a control device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state where assembly of the control device of FIG. 1 is completed. FIG. 3 is a cross-sectional view schematically showing the A1-A1 cross section of FIG. 1, and FIG. 4 is a cross-sectional view showing the A2-A2 cross section of FIG. 5 is a side view schematically showing a side surface of the control device of FIG. 1, FIG. 6 is a side view schematically showing a side surface of the control device of FIG. 2, and FIG. FIG. 8 is a partially enlarged view of FIG. 4.

  The control device 1 shown in FIG. 2 is a control device for a vehicle here, and has a circuit board 40 that forms a computer that controls, for example, a door lock and engine start, and can also be referred to as an electronic device or an electronic component. . Various elements are mounted on the circuit board 40, and a connector portion 41 for external connection is provided. The circuit board 40 is housed and fixed in a housing space in the board housing case 30.

  The board housing case 30 is a case body that forms a housing space inside by engaging and assembling a plurality of case forming members 30A and 30B, and the circuit board 40 is housed in the housing space. The plurality of case forming members 30 </ b> A and 30 </ b> B can be, for example, a single resin injection molded body formed separately from each other. Here, each of the plurality of case forming members 30A and 30B includes a first case forming member 30A and a second case forming member 30B that are separately formed (here, two members but three or more members may be used). The plurality of case forming members 30 </ b> A and 30 </ b> B are integrated by engagement assembly to form a case body 30. As a result of this engagement assembly, a connector exposure hole 31 is formed on the case body 30, and the connector portion 41 of the circuit board 40 accommodated in the case body 30 protrudes from the connector exposure hole 41 to the outside.

  In the present embodiment, as shown in FIGS. 1 and 2, the first case forming member 30 </ b> A is a cover member having a connector exposure hole 31 formed in the center and forming one side surface portion 32 of the case body 30. The second case forming member 30B is a case-like case main body member that is the remaining portion (the upper surface portion 34, the lower surface portion 35, and the remaining side surface portion 33) of the case body 30 excluding the side surface portion, and one surface of which opens. Yes, the first case forming member 30A is assembled to the second case forming member 30B in a state where the circuit board 40 is accommodated in the housing-like second case forming member 30B. At this time, the circuit board 40 is arranged in such a manner that the connector portion 41 protrudes to the outside on the opening side of the housing-like second case forming member 30B, and the connector portion 41 is connected to the first case forming member 30A and the first case forming member 30B. By assembling the two case forming members 30B, the first case forming member 30A (case body 30) protrudes to the outside in a form of insertion through the connector exposure hole 31.

  The assembly of the first case forming member 30A and the second case forming member 30B in the present embodiment will be described in detail.

  When the first case forming member 30A is assembled to the second case forming member 30B, the circuit board 40 is accommodated and arranged in the second case forming member 30B as described above, and in this state, the second case forming member 30 A of 1st case formation members are approached from the back surface side toward the opening of 30B. The first case forming member 30A is formed with an annular engagement hole (engagement portion) 39A that forms a hole projecting in the approaching direction and penetrating perpendicularly to the approaching direction at both ends thereof. On the other hand, the second case forming member 30B is formed with engaging claw portions (engaging portions) 39B protruding outwardly on the side surface portions 33 at both ends of the opening. Yes. As a result of the approach, the tip of the engagement hole 39A having an annular shape comes into contact with the engagement claw 39B. By further pushing this, the tip of the engagement hole 39A causes the engagement claw 39B to be on its slope. Along the way, the engagement claw portion 39B is accommodated in the hole in the engagement hole portion 39A at the point of overcoming, and the engagement hole portion 39A is elastically restored. In this state, the engaging claw portion 39B is accommodated in the hole in the engaging hole portion 39A. Even if the engaging hole portion 39A is pulled out in the direction opposite to the approaching direction, it is accommodated in the hole. Since the engaging claw portion 39B prevents the extraction, the extraction is impossible or difficult. That is, this state is an engaged assembly state (integrally fixed state) in which the first case forming member 30A having the engaging hole 39A is fixed to the second case forming member 30B.

  By the way, the connector part 41 of the circuit board 40 accommodated in the housing-like second case forming member 30B is formed from the connector exposure hole 31 formed in the center of the first case forming member 30A by this engagement assembly. It is inserted and protrudes to the outside.

  However, the formation position and shape of the connector exposure hole 31 on the case body 30 have some allowance in consideration of variations in manufacturing the case forming members 30A and 30B, variations in the above-described engagement assembly, and the like. It is formed in a shape. That is, the connector exposure hole 31 has variations in the external dimensions of the connector portion 41 itself, variations in the positions and dimensions of the respective engagement assembly portions of the case forming members 30A and 30B constituting the case body, and the case forming members 30A and 30B. Since the connector exposure hole 31 is affected by variations in various factors such as variations due to engagement assembly and variations in the opening position and size of the opening when the connector exposure hole 31 is formed, the connector exposure hole 31 is still affected by these variations. The connector portion 41 of the circuit board 40 accommodated in the case body 30 has a certain margin with respect to the outer dimension (outer peripheral shape) of the connector portion 41 so that the connector portion 41 is inserted without interference and protrudes (exposed) to the outside. Is formed. Therefore, when the connector portion is actually inserted into the connector exposure hole 31, a gap having a gap width t is formed between the outer peripheral surface of the connector portion 41 and the inner peripheral surface of the connector exposure hole 31, as shown in FIG. This was presently having a width of 1 mm or more.

  In order to reduce the gap width t, in the present embodiment, the connector exposure hole 31 is provided with a gap width reduction member 10 that is a single member disposed so as to surround the outer periphery of the connector portion 41 protruding to the outside. By attaching the formed surface 32 of the case body 30 to the case body 30 so as to cover at least the outside, the inner peripheral surface of the connector exposure hole 31 and the outer peripheral surface of the connector portion 41 inserted into the connector exposure hole 31 The gap width t is reduced while leaving the gap 50 (see FIG. 7). That is, the gap width reducing member 10 has a hole portion having a hole size y smaller than the hole size x of the connector exposure hole 31 of the case body 30 as the connector insertion hole 11. When attached so as to surround the outer periphery of the connector portion 41, the inner peripheral side of the connector exposure hole 31 can be covered in an annular shape, and the gap width t can be reduced to the gap width v. 11 can be inserted without causing the connector part 41 to interfere.

  The gap width reducing member 10 is relatively piled up in the process from the manufacture of the parts 30A and 30B of the case body 30 to the assembly thereof, such as the design of the case body 30 (substrate housing case 30). There is no need to consider a large variation width, and only a manufacturing variation between itself 10 and the connector portion 41 may be considered, and the design may be such that the connector portion is inserted into the connector insertion hole 11 without interference. As a result, since it can be designed smaller than the connector exposure hole 31 of the case body 30, the gap width reducing member 10 covers the inner peripheral side of the connector exposure hole 31 of the case body 30 in an annular shape. Thus, the gap width between the connector portion 41 and the connector portion 41 can be reduced.

  As shown in FIG. 8, the gap width reducing member 10 of the present embodiment has an outer dimension z larger than the connector exposure hole 31 of the case body 30 and overlaps the peripheral portion of the connector exposure hole 31 of the case body 30. Furthermore, the plate-shaped plate material which has the connector insertion hole 11 in which the inner peripheral edge in the connector insertion hole 11 is located inside rather than the connector exposure hole 31 of the case body 30 (refer FIG.1 and FIG.2) It is attached to one surface of the case body 30 (surface having a connector exposure hole) in such a manner that the connector portion 41 is inserted through the connector insertion hole 11. Specifically, the gap width reducing member 10 is attached in such a manner that the plate back surface 13 is adhered to the outer surface of the peripheral portion of the connector exposure hole 31 in the case body 30. Here, when a pressure-sensitive adhesive such as a double-sided tape or an adhesive is provided on the back surface 13 of the gap width reducing member 10 and the connector portion 41 protruding outside from the case body 30 is inserted, the back surface 13 is left as it is. The connector exposure hole 31 is attached so as to be pressed against the surface 32 on which the connector exposure hole 31 is formed.

  The control device 1 of the present embodiment is for the purpose of preventing entry of foreign matter from the outside, and is intended to satisfy the IP40 standard in the IEC (International Electrotechnical Commission) standard. Is what made it happen. In other words, the gap 50 is a gap that penetrates the inside and outside of the case body 30 so that the inside of the case body 30 can be visually recognized from the outside. By attaching the reducing member 10, the gap width v at the outermost position of the gap 50 is set to 1 mm or less, and foreign matter intrusion prevention is achieved.

  Although one embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

  Hereinafter, a first modification of the above embodiment will be described.

  The case body 30 of the present invention is not limited to the structure of the above-described embodiment, and the case body 30 having a housing space therein is obtained by engaging and assembling a plurality of case forming members 30A and 30B. What is necessary is just to form the connector exposure hole 31 in the case body 30. That is, if it is assumed that the connector exposure hole 31 of the case body 30 is affected by variations in engagement and assembly of the case body 30 and variations in manufacturing of the case forming members 30A and 30B. Good.

  Therefore, for example, as shown in FIGS. 9 to 11, the case upper member including the upper surface 34 of the case body 30 as the first case forming member 30C and the lower case 35 including the lower surface 35 of the case body 30 as the second case forming member 30D. It can comprise and comprise a side member. Furthermore, the case upper member 30C and the case lower member 30D are engaged and assembled by the respective engaging portions (engaging claw portions 39D and engaging hole portions 39C), as in the above embodiment. The connector exposure holes 31 may be formed on the side surfaces (side surfaces of the case body 30) 32 and 33 having both contact portions of the case upper member 30C and the case lower member 30D. it can.

  In this case, the side surfaces 32 and 33 of the case body 30 are formed such that the side surfaces 32C and 33C of the case upper member 30C abut on the side surfaces 32D and 33D of the case lower member 30D. Regarding the side surface 32 of the case body 30, non-contact portions 31C and 31D (see FIG. 9) for both exist between the side surface portion 32C of the case upper member 30C and the side surface portion 32D of the case lower member 30D. A through hole formed between the non-contact portions 31C and 31D becomes the connector exposure hole 31. Even in this case body 30, the width of the gap 50 formed on the outer peripheral side of the connector portion 41 can be increased by using the gap width reducing member 10 similar to the above embodiment corresponding to the connector exposure hole 31 of the present embodiment. Can be reduced.

  A second modification of the above embodiment will be described.

  In the above-described embodiment and the above-described first modification, when the connector portion 41 moves the gap width reducing member 10 closer to the case body 30 in the form of inserting the connector insertion hole 11 in the direction opposite to the protruding direction. In addition, there is nothing to prevent the approach (insertion), and the outer peripheral surface of the connector portion 41 is formed flat. However, if the protrusion 41a that protrudes in the direction perpendicular to the protrusion direction is formed outside the protrusion direction on the connector part 41, the protrusion prevents the connector insertion hole 11 from being inserted, The gap width reducing member 10 cannot be brought close to (and further bonded to) the case body 30.

  In this case, as shown in FIG. 12, the gap width reducing member 10 forms a cut 19 in a part of an annular shape that surrounds the outer periphery of the connector portion 41, and separates both sides of the cut 19 as shown in FIG. It is preferable that the elastic deformation is possible. If such elastic deformation is possible, the connector insertion hole 11 of the gap width reducing member 10 can be widened by separating and widening both sides of the notch 19 of the gap width reducing member 10. It becomes possible to make the connector part 41 into the state penetrated to the connector penetration hole 11 of the clearance gap reduction member 10 in the form which avoids the projection part 41a of the connector part 41 shown in FIG. Further, if the connector insertion hole 11 of the gap width reducing member 10 can be widened, the protruding portion that adheres to the one surface 32 of the case body 30 without inserting the connector portion 41 into the connector insertion hole 11 of the gap width reducing member 10. The connector part 41 can be directly attached by sandwiching the connector part 41 at a position on the back side of 41a (opposite to the protruding direction of the connector part 41). However, after the attachment, the gap width reducing member 10 is attached to one surface 32 of the case body 30 in such a manner that the both sides of the cut 19 cannot be separated (for example, adhesive fixing to the surface 32 or both sides of the cut 19). Adhesive fixing etc.).

  A third modification of the above embodiment will be described.

  In the embodiment described above, a gap formed between the inner peripheral surface of the connector exposure hole 31 and the outer peripheral surface of the connector portion 41 inserted into the connector exposure hole 31 with respect to the entry of foreign matter into the case body 30. 50, the gap width reducing member 10 covers the peripheral portion of the connector exposure hole 31 from the outside of the case body 30 so as not to allow entry of foreign matter into the 50 itself, but at least the outside is covered. That's fine.

  16 to 18, the gap width reducing member 10 includes an inner covering portion 10 </ b> B covering the peripheral portion of the connector exposure hole 31 in the case body 30 from the inner side, an outer covering portion 10 </ b> A covering the outer portion from the outer side, and the inner and outer portions thereof. The gap width reducing member 10 that covers the inside and outside of the connector exposure hole 31 in the case body 30 that is configured to have a connecting portion 10C that connects the covering portions 10B and 10A on the inner peripheral side of the connector exposure hole 31. As shown in FIG. 18, the connecting portion 10 </ b> C located on the inner peripheral side of the inner peripheral surface of the connector exposing hole 31 by being arranged causes the inner peripheral surface of the connector exposing hole 31 and the outer peripheral surface of the connector portion 41 to The gap width t of the gap 50 can be reduced to the gap width v.

  In this modification, as shown in FIG. 18, the gap width reducing member 10 has a backlash (see FIG. 18) between the case upper member 30C and the case lower member 30D so that it can be assembled regardless of variations in outer dimensions. 18 corresponding to the dimension w in FIG. 18 in the side surface portions 32C and 32D of the case body 30 is provided, and this overlap portion (w ) Is larger than the backlash (v), it is possible to prevent intrusion of foreign matters such as a wire-like metal rod into the gap between the case body 30 and the connector portion 41 and an external operation. 15 and 18, the symbol y is the outer dimension of the connector portion 41, the symbol x is the opening dimension of the connector insertion hole 11 of the gap width reducing member 10, and the symbol z is the outer dimension of the gap width reducing member 10.

  Further, as shown in FIG. 19, the gap width reducing member 10 is also provided with a notch 19 as shown in FIG. 19 and the connector portion 41 as shown in FIGS. 20 and 21. It is also possible to attach to the case body 30 so as to avoid the protruding portion 41a formed on the case.

DESCRIPTION OF SYMBOLS 1 Control apparatus 10 Gap width reduction member 11 Connector insertion hole 30 Substrate accommodation case (case body)
30A-30D Case formation member 31 Connector exposure hole 40 Circuit board 41 Connector part

Claims (7)

By engaging and assembling a plurality of case forming members, a case body having an accommodating space is formed, and by this engaging and assembling, a connector exposure hole is formed on one surface of the case body , and on the outer peripheral side of the connector exposure hole. Is a substrate housing case having a peripheral portion forming a wall portion extending from the connector exposure hole toward the outer peripheral side so as to surround the connector exposure hole ;
A circuit board disposed in the housing space of the board housing case in such a manner that a connector portion for external connection projects outside from the connector exposure hole;
A single member disposed so as to surround the outer periphery of the connector portion protruding outward, and an inner peripheral surface of the connector exposure hole and an outer peripheral surface of the connector portion inserted into the connector exposure hole A gap width reducing member disposed so as to cover at least one surface of the case body in which the connector exposure hole is formed so as to reduce the gap width while leaving a gap therebetween,
The gap width reducing member is a plate member having a connector insertion hole in which an inner peripheral edge in the hole is located inside the connector exposure hole of the case body, and the connector portion is inserted into the connector insertion hole. In such a manner, it is attached to the peripheral portion forming one surface of the case body so as to overlap from the outside of the case body , and the attachment is made by adhering the back surface of the plate to the outer surface of the peripheral portion. A control device characterized by that. By engaging and assembling a plurality of case forming members, a case body having an accommodating space is formed, and by this engaging and assembling, a connector exposure hole is formed on one surface of the case body , and on the outer peripheral side of the connector exposure hole. Is a substrate housing case having a peripheral portion forming a wall portion extending from the connector exposure hole toward the outer peripheral side so as to surround the connector exposure hole ;
A circuit board disposed in the housing space of the board housing case in such a manner that a connector portion for external connection projects outside from the connector exposure hole;
A single member disposed so as to surround the outer periphery of the connector portion protruding outward, and an inner peripheral surface of the connector exposure hole and an outer peripheral surface of the connector portion inserted into the connector exposure hole A shape in which at least the peripheral portion forming one surface of the case body in which the connector exposure hole is formed is covered from both the outer side and the inner side of the case body so that the gap width is reduced while leaving a gap therebetween. A gap width reducing member arranged in
Wherein the gap width reducing member includes an inner cover portion covering the peripheral portion from the inside of the case body, and an outer coating portion covering the peripheral portion from the outside of the case body, their inner and outer cover portion And a connecting portion connected on the inner peripheral side of the peripheral portion . The connector portion projects in a direction perpendicular to the projecting direction in the projecting direction to the outside of the case body, and prevents the gap width reducing member from being inserted into the connector insertion hole in the direction opposite to the projecting direction. Part is formed,
3. The control device according to claim 1, wherein the gap width reducing member has a cut formed in a part of an annular shape surrounding an outer periphery of the connector portion, and can be elastically deformed to separate both sides of the cut. 4. . The substrate housing case has a first case forming member and a second case forming member, which are separately formed as the plurality of case forming members, and the first case forming member and the second case forming member. The control device according to any one of claims 1 to 3 , wherein the case body is integrated by the engagement assembly. In the substrate housing case, the first case forming member is a case upper member including the upper surface of the case body, and the second case forming member is a case lower member including the lower surface of the case body, When the member and the case lower member are engaged and assembled, the connector is exposed to the side surface of the case body having the contact portions of both the case upper member and the case lower member by the contact. The control device according to claim 4 , wherein a hole is formed. In the substrate housing case, the first case forming member is a cover part that forms one surface of the case body, and the connector exposing hole is formed in the center, and the second case forming member extends from the case body a case body excluding the cover portion, by the cover portion is assembled the engagement with respect to the case body, the connector exposed hole claim has become the case body formed 4 on one side The control device described in 1. The control device according to claim 1, wherein the control device satisfies the IP40 standard.

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