JP2012134391A - Casing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a casing that allows a first member and a second member to maintain fixing force to fix a component even when the component is deformed.SOLUTION: A casing includes a box-shaped first member 10 and a box-shaped second member 20. A first side wall 11 of the first member 10 is provided with a first fixing portion 13a that is bent toward a component 30 arranged in a space surrounded by the first member 10 and the second member 20. A second side wall 21 of the second member 20 is provided with a second fixing portion 23 that protrudes toward the component 30 arranged in the space and is in contact with the first fixing portion 13a. With the second member 20 put over the first member 10, the second fixing portion 23 is constantly subject to a restoring force toward a direction of a first bottom 12 by spring deformation of the first fixing portion 13a.

Description

  The present invention relates to a housing that holds and fixes components.

  2. Description of the Related Art Conventionally, there has been a housing for electronic devices disclosed in Patent Document 1 as an example of a housing that holds and fixes components. The electronic device casing is composed of an upper case (first member) and a lower case (second member) connected to the upper case by a bent portion, and a printed circuit board (component) is formed by the upper case and the lower case. ). One end of the printed circuit board is sandwiched and fixed from above and below by the operation of closing the upper case and the lower case. The other end of the printed circuit board is fastened together with an upper case, a lower case, and a screw.

JP-A-8-18244

  However, in the case of the electronic device casing, when the printed board is contracted and deformed in the direction in which the printed board is sandwiched between the upper case and the lower case (that is, in the thickness direction of the printed board) And a gap is generated between the upper case and the lower case. In other words, in the part where the printed circuit board is sandwiched between the upper case and the lower case, or the part where the printed circuit board is fastened together with the upper case, the lower case and the screw, between the printed circuit board and the upper case and the lower case. A gap will occur. Therefore, there is a possibility that the fixing force for fixing the printed circuit board by the upper case and the lower case cannot be maintained.

  The present invention has been made in view of the above-described problems, and provides a housing capable of maintaining a fixing force for fixing a component by the first member and the second member even when the component is deformed. The purpose is to do.

In order to achieve the above object, the housing according to claim 1 is configured to store components while being fixed,
A first member having a first bottom portion having a shape corresponding to one surface of the component and a first side portion rising from the first bottom portion corresponding to the side surface of the component, wherein a portion facing the first bottom portion is open. When,
A portion having a second bottom portion having a shape corresponding to the opposite surface of one surface of the component and a second side portion standing up from the second bottom portion corresponding to the side surface of the component, and a portion facing the second bottom portion is open. A second member,
The second member is placed on the first member so that the outer surface of the first side portion and the inner surface of the second side portion face each other while the first bottom portion and the second bottom portion face each other. The parts arranged in the space surrounded by the two members are sandwiched between the first bottom part and the second bottom part,
The first side portion is provided with a first fixing portion bent toward the component side disposed in the space, and a through hole is provided around the first fixing portion.
The second side portion is provided with a second fixing portion that protrudes through the through hole on the component side arranged in the space and contacts the first fixing portion,
In the state where the second member is covered with the first member, the second fixing portion always receives the restoring force due to the spring deformation of the first fixing portion toward the first bottom portion, so that the first bottom portion and the second bottom portion are components. The component is housed in a space surrounded by the first member and the second member while being sandwiched and fixed.

  By doing in this way, in the state where the 2nd member was covered on the 1st member, force will be applied to the 1st member and the 2nd member in the direction in which the 1st bottom part and the 2nd bottom part approach. . Therefore, even when the component is contracted and deformed (that is, when the length from one surface of the component to the opposite surface is shortened), the first member and the first member The fixing force of the parts by the two members can be maintained.

  According to a second aspect of the present invention, the first fixing portion may be configured such that a part of the first side portion is bent and protrudes toward the component side disposed in the space.

  By doing in this way, a 1st fixing | fixed part can be provided, without attaching another member to a 1st member.

  According to a third aspect of the present invention, the second fixing portion may be protruded by bending a part of the second side portion toward the component side disposed in the space.

  By doing in this way, a 2nd fixing | fixed part can be provided, without attaching another member to a 2nd member.

  According to a fourth aspect of the present invention, the spring back amount of the first fixed portion is larger than the spring back amount of the second fixed portion.

  By doing in this way, in the state where the 2nd member was covered on the 1st member, the 2nd fixed part always receives the restoring force by the spring deformation of the 1st fixed part to the 1st bottom part direction. it can.

  In addition, when adopting a bent part of the second side part as the second fixing part in this way, a part of the outer surface of the first side part is opposed to a part of the inner surface of the second side part. In this state, the first fixing part and the second fixing part can be formed by bending a part of the first side part and a part of the second side part at the same time. However, when bending a part of the first side part and a part of the second side part at the same time, the inner surface of the second fixing part is scraped by the end part of the first fixing part, and the thickness of the second fixing part is reduced. There is a possibility that the pressing force of the first fixing portion against the second fixing portion is reduced. That is, there is a possibility that the fixing force for fixing the component between the first member and the second member is reduced.

  Therefore, as shown in claim 5, the length of the first fixing portion may be longer than the length of the second fixing portion.

  By doing so, in a state where a part of the outer surface of the first side part and a part of the inner surface of the second side part face each other, a part of the first side part and a part of the second side part are Even in the case of bending at the same time, it is possible to prevent the inner surface of the second fixing portion from being scraped by the end portion of the first fixing portion. Therefore, it can suppress that the fixing force which fixes components by the 1st member and the 2nd member falls.

  According to a sixth aspect of the present invention, the end of the second fixing portion is disposed closer to the component side than the end of the first fixing portion, and the end of the first fixing portion has a curved shape. You may make it have.

  By doing so, in a state where a part of the outer surface of the first side part and a part of the inner surface of the second side part face each other, a part of the first side part and a part of the second side part are Even in the case of bending at the same time, it is possible to prevent the inner surface of the second fixed part from being scraped by the end of the first fixed part. Therefore, it can suppress that the fixing force which fixes components by the 1st member and the 2nd member falls.

  In addition, as shown in Claim 7, stainless steel can be used for the first member, and aluminum can be used for the second member. Furthermore, as shown in claim 8, the first member can be made of stainless steel, and the second member can be made of SPCC.

It is a perspective view which shows schematic structure of the housing | casing in 1st Embodiment of this invention. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line of FIG. (A) is an enlarged plan view of the IVa part of FIG. 1, (b) is sectional drawing which follows the IVb-IVb line | wire of FIG. 4 (a). It is a perspective view which shows the assembly | attachment process (1st process) of the housing | casing in 1st Embodiment of this invention. (A) is an enlarged plan view of the VIa part of FIG. 5, (b) is sectional drawing which follows the VIb-VIb line | wire of FIG. 6 (a). It is a perspective view which shows the assembly | attachment process (2nd process) of the housing | casing in 1st Embodiment of this invention. (A) is an enlarged plan view of the VIIIa part of FIG. 7, (b) is sectional drawing which follows the VIIIb-VIIIb line | wire of FIG. 8 (a). It is a perspective view which shows the assembly | attachment process (3rd process) of the housing | casing in 1st Embodiment of this invention. (A) is an enlarged plan view of the Xa part of FIG. 9, (b) is sectional drawing which follows the Xb-Xb line | wire of FIG. 10 (a). It is sectional drawing which shows schematic structure of the housing | casing in the modification 1 of this invention. It is sectional drawing which shows schematic structure of the housing | casing in the modification 2 of this invention. It is a perspective view which shows schematic structure of the housing | casing in the modification 3 of this invention. It is sectional drawing which follows the XIV-XIV line | wire of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The housing in the present embodiment is for housing the component 30 while fixing it. As shown in FIGS. 1, 2, 3, etc., the housing includes a first member (housing) 10 and a second member (housing) 20.

  As the component 30, for example, an electronic control device or a drive circuit in which a plurality of elements are mounted on a base member can be adopted. In the present embodiment, the component 30 is simply shown as a rectangular parallelepiped. That is, as shown in FIG. 2 and the like, the component 30 includes a rectangular first surface (one surface) 321 and a rectangular second surface opposite to the first surface 321 (that is, the opposite surface of the first surface 321). ) 322 and four side surfaces 31 connected to each side of the first surface 321 and the second surface 322. Also, as shown in FIGS. 3 and 4B, the first fixing portion 13a, the temporary fixing portion 13b of the first member 10 and the second fixing of the second member 20 which will be described later are provided on the side surface 31 of the component 30. A recess 33 is provided in which the portion 23 and the like are disposed (inserted). That is, the side surface 31 of the component 30 is provided with a recess 33 that is recessed from the periphery. Therefore, the concave portion 33 is a portion that is depressed more than the portion around the concave portion 33 on the side surface 31. Further, when there is a recess in the side surface 31 of the component 30 where the first fixing portion 13a, the temporary fixing portion 13b of the first member 10, the second fixing portion 23 of the second member 20, and the like can be placed (inserted), the recess 33 There is no need to provide.

  In addition, when the component 30 has a plurality of elements mounted on the base member, the first surface 321, the second surface 322, and the side surface 31 may not have a rectangular shape. Therefore, the shape corresponding to one surface of the component 30 in the present invention can be rephrased as the front projection shape of the component 30. That is, it can be rephrased as a shadow shape formed on the wall standing behind the component 30 when light is applied to the first surface 321 side of the component 30 from an infinite forward distance. Therefore, it can be paraphrased as a rectangular shape connecting the vertexes of the shadows formed on the wall standing behind the component 30 when light is applied to the first surface 321 side of the component 30 from an infinite forward distance.

  Here, the case will be described. First, the first member 10 stands up from the first bottom portion 12 corresponding to the shape of the first surface 321 of the component 30 and from the first bottom portion 12 corresponding to the side surface 31 of the component 30 (along the side surface 31). The 1st side wall (1st side part) 11 and the site | part which opposes the 1st bottom part 12 are opened. That is, the first side wall 11 is provided in a direction perpendicular to the flat first inner surface 12 a of the first bottom 12 from the end of the first bottom 12. More specifically, the first member 10 includes a flat plate-like first bottom 12 having a shape corresponding to the first surface 321 of the component 30 and an end of the first bottom 12 to the flat first bottom inner surface 12a. It has a flat plate-like first side wall 11 provided in a perpendicular direction, and a portion facing the first bottom portion 12 is open.

  Further, the first side wall 11 in the present embodiment is provided over the entire circumference of the first bottom portion 12. Therefore, the first member 10 is composed of the first bottom portion 12 and the first side wall 11, and has a box shape in which a portion facing the first bottom portion 12 is opened. That is, the first member 10 can be restated as a box member having a shape corresponding to the outer shape of the component 30.

  If the first member 10 and the second member 20 can accommodate the component 30, the first side wall 11 may be used even if it is partially provided at an equal position around the first bottom portion 12. Can do.

  2 and 3, when the component 30 is inserted into the first member 10, the apex (here, the first surface 321) on one side of the component 30 is the first bottom portion 12 (first bottom portion). It contacts the inner surface 12a), and the apex on the side of the component 30 (here, the side surface 31) contacts the first side wall 11 (first side wall inner surface 11a). Therefore, when the component 30 is inserted into the first member 10 having the box shape, the side surface 31 thereof is the first side wall 11 of the first member 10 (the flat first side wall inner surface 11a). By contact, movement in a direction parallel to the first surface 321 (or the second surface 322) is limited. That is, the component 30 is inserted in the first member 10 in the left-right direction in FIG. 2 (ie, the direction perpendicular to the paper surface of FIG. 3) and in the left-right direction in FIG. 3 (ie, perpendicular to the paper surface of FIG. 2). Movement in a certain direction) is restricted.

  Next, the second member 20 corresponds to the second bottom portion 22 having a shape corresponding to the shape of the second surface 322 of the component 30 and the first side wall 11 of the first member 10 (along the first side wall 11). ) It has a second side wall (second side part) 21 erected from the second bottom part 22, and a part facing the second bottom part 22 is open. In other words, the second side wall 21 is provided in a direction orthogonal to the flat second bottom inner surface 22 a of the second bottom 22 from the end of the second bottom 22. More specifically, the second member 20 includes a flat plate-like second bottom 22 having a shape corresponding to the second surface 322 of the component 30, and an end of the second bottom 22 to the flat second bottom inner surface 22a. It has a flat plate-like second side wall 21 provided in a perpendicular direction, and a portion facing the second bottom portion 22 is open.

  Further, the second side wall 21 in the present embodiment is provided over the entire circumference of the second bottom portion 22. Therefore, the second member 20 includes the second bottom portion 22 and the second side wall 21, and has a box shape in which a portion facing the second bottom portion 22 is opened.

  If the first member 10 and the second member 20 can accommodate the component 30, the second side wall 21 may be adopted even if it is partially provided at an equal position around the second bottom portion 22. Can do.

  When the component 30 is stored while being fixed by the first member 10 and the second member 20, as shown in FIGS. 1 and 2, the second member 20 is attached to the first member 10 in which the component 30 is inserted. It is to be put on. That is, the first member 10 is inserted into the open part of the second member 20 from the part where the part 30 is inserted (the second surface 322 side of the part 30). . Further, in a state where the first member 10 is covered with the second member 20, the first side wall outer surface 11 b of the first side wall 11 in the first member 10 and the second side wall inner surface 21 a of the second side wall 21 in the second member 20. And contact. That is, the second member 20 can be restated as a box member having a shape corresponding to the outer shape of the first member 10.

  Therefore, the second bottom portion 22 is larger than the first bottom portion 12 by the thickness of the first side wall 11. Therefore, the second bottom portion 22 can be restated as a shape corresponding to the shape of the outer periphery of the first member 10 (that is, the shape along the first side wall 11). In addition, the second bottom portion 22 can be rephrased as the front projection shape of the first member 10. That is, in other words, the shape of the shadow formed on the wall standing behind the first member 10 when light is applied to the opening side (or the first bottom portion 12) of the first member 10 from an infinite forward distance. Can do. Therefore, the top of the shadow formed on the wall standing behind the first member 10 is connected to the opening side (or the first bottom portion 12) of the first member 10 when light is applied from an infinite forward distance. In other words, it can be called a rectangular shape. Thus, the second member 20 is slightly larger than the first member 10 and has a similar box shape.

  Then, as described above, in the state where the component 30 is put on the first member 10 inserted, the other apex (here, the second surface 322) of the component 30 is the second bottom 22 (second bottom inner surface 22a). ) And the first side wall 11 (first side wall outer surface 11b) of the first member 10 contacts the second side wall 21 (second side wall inner surface 21a). Therefore, when the first member 10 on which the component 30 is disposed is inserted into the second member 20 having the box shape, the first side wall 11 (the first side wall outer surface 11b) of the first member 10 is used. Is in contact with the second side wall 21 (second side wall inner surface 21a) of the second member 20, and movement in a direction parallel to the first bottom inner surface 12a is limited. That is, when the first member 10 is inserted into the second member 20, the left-right direction in FIG. 2 (that is, the direction perpendicular to the paper surface of FIG. 3) and the left-right direction in FIG. 3 (that is, the paper surface of FIG. 2). Movement in a direction perpendicular to

  The first member 10 can be made of stainless steel, and the second member can be made of aluminum. Further, the first member 10 may be made of stainless steel, and the second member may be made of SPCC (cold rolled steel plate and steel strip).

  As shown in FIGS. 3 and 4, the first member 10 includes a first fixing portion 13 a and a temporary fixing portion 13 b on the first side wall 11, and a through hole 14 is formed. On the other hand, the second member 20 includes a second fixing portion 23 on the second side wall 21, and a through hole 24 is formed. The first fixing portion 13a and the second fixing portion 23 are provided as a pair. The first fixing portion 13a and the second fixing portion 23 that form a pair are at least two opposite side walls (the first side wall 11 and the second side wall 11) on the side wall (the first side wall 11 and the second side wall 21) of the housing. Provided on the side wall 21). Therefore, you may provide in all the side walls (the 1st side wall 11 and the 2nd side wall 21). Moreover, it is preferable that the first fixing portion 13a and the second fixing portion 23 that form a pair are equally arranged on the side wall (the first side wall 11 and the second side wall 21) of the housing. In the present embodiment, an example is adopted in which the first fixing portion 13a and the second fixing portion 23 that form a pair are provided at two locations on each of two opposing side walls.

  The first fixing portion 13a and the temporary fixing portion 13b are arranged in a space surrounded by the first member 10 and the second member 20 from a portion other than the first fixing portion 13a and the temporary fixing portion 13b in the first side wall 11. The component 30 protrudes toward the component 30 side, and at least a part of the component 30 is disposed in the recess 33 of the component 30. In other words, in a state where the component 30 is fixed and stored between the first member 10 and the second member 20, at least a part of the first fixing portion 13a and the temporary fixing portion 13b is disposed in the recess 33 of the component 30. The In addition, the first fixing portion 13a is disposed on the first bottom portion 12 side of the first member 10 on the first side wall outer surface 11b side, and on the opening side of the first member 10 (that is, on the second member 20 side). It is arranged on the second bottom 22 side).

  Further, the first fixing portion 13a is a portion on the first bottom portion 12 side (that is, the first fixing portion 13a) in the state where the first member 10 and the second member 20 hold the component 30 while being fixed. The side wall outer surface 11b) is always in contact with the second fixing portion 23 (second side wall inner surface 21a). That is, the portion of the first fixing portion 13a on the first bottom portion 12 side (that is, the first side wall outer surface 11b) always changes the second fixing portion 23 (second side wall inner surface 21a) to the first bottom portion 12 side (opening of the second member 20). Side).

  Moreover, in this embodiment, the 1st fixing | fixed part 13a and the temporary fixing | fixed part 13b are the components 30 side (namely, 1st member 10 side) arrange | positioned in the space enclosed by the 1st member 10 and the 2nd member 20. The first side wall 11 is partially bent and protruded on the inner side. By doing in this way, the 1st fixing | fixed part 13a and the temporary fixing | fixed part 13b can be provided, without attaching another member to the 1st member 10. FIG. However, in the present invention, the object can be achieved by attaching another member to the first member 10 and providing the first fixing portion 13a and the temporary fixing portion 13b.

  The temporary fixing portion 13b temporarily fixes the first member 10 and the component 30 in a state where the component 30 is inserted into the first member 10 (that is, before the second member 20 is covered). The temporary fixing portion 13 b is provided so as to be caught in the concave portion 33 of the component 30. That is, in the component 30 in a state of being inserted into the first member 10, a corner portion on the first bottom portion 12 side of the first member 10 (a wall surface on the first bottom portion 12 side of the first member 10 in the recess 33 (FIG. 4B)). ) At a portion where the upper surface of the concave portion 33 and the side wall 31 around the concave portion 33 are in contact with each other) so that at least a part of the temporary fixing portion 13b is hooked.

  Further, the temporary fixing portion 13 b is provided on at least two opposing first side walls 11 in the first side wall 11. Therefore, it may be provided on all the first side walls 11. Further, it is preferable that the temporary fixing portion 13 b is provided at an equal position on the first side wall 11. In the present embodiment, the temporary fixing portion 13b employs an example in which two locations are provided on each of the two first side walls 11 facing each other. Note that the present invention can achieve the object even if the temporary fixing portion 13b is not provided.

  On the other hand, the second fixing portion 23 extends from the portion other than the second fixing portion 23 in the second side wall 21 to the component 30 side disposed in the space surrounded by the first member 10 and the second member 20. Projecting through, and at least a portion thereof is disposed in the recess 33 of the component 30. In other words, in a state where the component 30 is fixed and accommodated by the first member 10 and the second member 20, at least a part of the second fixing portion 23 is disposed in the concave portion 33 of the component 30. Also, as shown in FIG. 4B, the second fixing portion 23 is disposed on the second side wall inner surface 21 a side on the second bottom 22 side of the second member 20, and on the second side wall outer surface 21 b side of the second member 20. It arrange | positions at the opening side (namely, the 1st bottom part 12 side of the 1st member 10).

  Further, in the present embodiment, the second fixing portion 23 is disposed on the component 30 side (that is, the inside of the second member 20) disposed in the space surrounded by the first member 10 and the second member 20. The two side walls 21 are partially bent and protruded. By doing in this way, the 2nd fixing | fixed part 23 can be provided, without attaching another member to the 2nd member 20. FIG. However, in the present invention, the object can be achieved even if another member is attached to the second member 20 and the second fixing portion 23 is provided.

  The second fixing portion 23 is arranged on the second side wall outer surface 21b side on the second bottom 22 side of the second member 20, and on the second side wall inner surface 21a side on the opening side of the second member 20 (that is, on the first member 10). It may be arranged on the first bottom 12 side). In this case, in the state where the first fixing portion 13a is housed while fixing the component 30 between the first member 10 and the second member 20, the first fixing portion 13a is located on the first bottom portion 12 side (that is, the first fixing portion 13a). 1 side wall outer surface 11b) always contacts the 2nd fixing | fixed part 23 (2nd side wall outer surface 21b).

  Further, it is preferable that the amount of spring back of the first fixing portion 13 a is larger than the amount of spring back of the second fixing portion 23. By doing so, in the state where the component 30 is fixed and housed between the first member 10 and the second member 20, the second fixing portion 23 exerts a restoring force due to the spring deformation of the first fixing portion 13a. It can always be received in the direction of the first bottom 12. That is, by setting the springback amount of each fixing portion (13a and 23) in this way, the tensile force due to the springback force of the first fixing portion 13a is exerted between the first member 10 and the second member 20. Can be generated.

  Accordingly, the material of the first fixing portion 13a and the second fixing portion 23, the first fixing portion 13a, and the first fixing portion 13a are set so that the spring back amount of the first fixing portion 13a is larger than the spring back amount of the second fixing portion 23. 2 The shape of the fixing portion 23 may be selected. That is, when the first fixing portion 13a is formed by bending the first side wall 11 of the first member 10 and the second fixing portion 23 is formed by bending the second side wall 21 of the second member 20, The material of the first member 10 and the second member 20, the first fixing portion 13a, and the second fixing portion 23 so that the spring back amount of the first fixing portion 13a is larger than the spring back amount of the second fixing portion 23. It is recommended to select the shape. Note that the first fixing portion 13a and the second fixing portion 23 need to be rigid enough not to be deformed by the springback force of the first fixing portion 13a. Therefore, as described above, it is preferable that the first member 10 is made of stainless steel, the second member is made of aluminum, or the first member 10 is made of stainless steel, and the second member is made of SPCC (cold rolled steel plate and steel strip).

  Here, an example of a process of assembling the housing in the present embodiment will be described.

  First, in the first step (component insertion step) shown in FIGS. 5, 6 </ b> A and 6 </ b> B, the component 30 is inserted into the first member 10. That is, the component 30 is inserted from the opening of the first member 10. At this time, the component 30 is inserted into the first member 10 so that the first bottom inner surface 12a of the first bottom portion 12 and the first surface 321 of the component 30 are in contact with each other. Thereby, the first side wall inner surface 11 a of the first side wall 11 and the side surface 31 of the component 30 are also in contact with each other.

  At this time, the first fixing portion 13a and the temporary fixing portion 13b are formed on the first side wall 11 of the first member 10 around the portions where the first fixing portion 13a and the temporary fixing portion 13b are to be formed. A notch is formed. In addition, the cut is formed at a position corresponding to the concave portion 33 of the component 30 (that is, a position facing the bottom portion of the concave portion 33) in a state where the component 30 is inserted into the first member 10.

  As shown in FIG. 5 and the like, this cut penetrates the first side wall 11 and forms an H shape. That is, two cuts formed in a direction perpendicular to the first bottom 12 (first bottom inner surface 12a) and one cut formed in a direction parallel to the first bottom 12 (first bottom inner surface 12a). Thus, an H-shaped cut is formed.

  If the temporary fixing portion 13b is not provided, a U-shaped cut that is rotated 90 ° counterclockwise may be used. That is, the first bottom portion 12 (the first bottom portion 12 (the first bottom portion 12 (first bottom portion inner surface 12a)) and the two notches formed in a direction perpendicular to the first bottom portion 12 (the first bottom portion inner surface 12a) and the end portions of the two notches on the first bottom portion 12 side. A U-shaped cut may be formed by a single cut formed in a direction parallel to the first bottom inner surface 12a).

  Further, by providing this cut, a part of the through hole 14 is provided as shown in FIGS. 6 (a) and 6 (b). This notch may be provided before the component 30 is inserted into the first member 10, or may be provided after the component 30 is inserted into the first member 10.

  Moreover, the code | symbol 13a in FIG. 5, FIG. 6 (a), (b) has shown the site | part used as a 1st fixing | fixed part, and the code | symbol 13b has shown the site | part used as a temporary fixing part. In this state, the first side wall 11 is not yet bent (not bent). That is, the first fixing part 13a and the temporary fixing part 13b are not formed. In FIGS. 6A and 6B, the lower side of the drawing is the opening side of the first member 10.

  Next, in the second step (temporary fixing step) shown in FIGS. 7, 8 </ b> A and 8 </ b> B, in order to temporarily fix the inserted component 30 and the first member 10, A part (reference numeral 13b in FIG. 5 and the like) that becomes a temporary fixing part is bent toward the component 30 side. That is, a portion (reference numeral 13 b in FIG. 5 or the like) serving as a temporary fixing portion in the first side wall 11 is bent, and at least a part of this portion is disposed in the concave portion 33 of the component 30. At this time, the corner of the first member 10 on the first bottom 12 side (the wall surface on the first bottom 12 side of the first member 10 in the recess 33 (the upper surface of the recess 33 in FIG. 8B)) and the periphery of the recess 33 (Part of contact with the side wall 31) is bent so that at least a part of the temporary fixing portion 13b is caught. Thereby, as shown in FIG. 8B, at least a part of the temporary fixing portion 13 b is disposed in the recess 33. By doing so, it is possible to prevent the component 30 from coming off the first member 10 in a state before the second member 20 is put on the first member 10. In FIGS. 8A and 8B, the lower side of the drawing is the opening side of the first member 10. Further, as described above, the present invention can achieve the object without providing the temporary fixing portion 13b. Therefore, when the temporary fixing portion 13b is not provided, it is not necessary to perform this second step (temporary fixing step). That is, the present invention can achieve the object without performing the temporary fixing step.

  Next, in the third step (second member covering step) shown in FIGS. 9, 10 </ b> A, and 10 </ b> B, the second member 20 is put on the first member 10 in which the component 30 is inserted. In other words, the first member 10 in which the component 30 is inserted is inserted into the second member 20. That is, the first member 10 in a state where the component 30 is temporarily fixed is inserted from the opening of the second member 20. At this time, the first member 10 in which the component 30 is temporarily fixed is inserted into the second member 20 so that the second surface 322 of the component 30 faces the second bottom portion 22 of the second member 20. As a result, the first bottom portion 12 of the first member 10 and the second bottom portion 22 of the second member 20 face each other with the component 30 therebetween.

  At this time, the second side wall 21 of the second member 20 is formed with a notch for forming the second fixing portion 23 around the portion where the second fixing portion 23 is to be formed. Further, the notch is a position corresponding to the concave portion 33 of the component 30 in a state where the first member 10 in which the component 30 is inserted is inserted into the second member 20 (that is, a position facing the bottom of the concave portion 33). Is formed.

  As shown in FIG. 9 and the like, this notch penetrates the second side wall 21 and forms a U-shape rotated 90 ° counterclockwise. That is, two cuts formed in a direction perpendicular to the second bottom 22 (second bottom inner surface 22a) and an end of the two cuts on the opening side (opposite to the second bottom 22) are connected. A U-shaped notch is formed by a single notch formed in a direction parallel to the second bottom 22 (second inner surface 22a).

  Further, by providing this notch, a part of the through hole 24 is provided as shown in FIGS. 10 (a) and 10 (b). This notch may be provided before the first member 10 is inserted, or may be provided after the first member 10 is inserted.

  Moreover, the code | symbol 23 in FIG. 9, FIG. 10 (a), (b) has shown the site | part used as a 2nd fixing | fixed part. In this state, the second side wall 21 is not yet bent (not bent). That is, the second fixing portion 23 is not formed. In FIGS. 10A and 10B, the lower side of the drawing is the opening side of the first member 10.

  Note that the second member 20 is placed in a state where the first member 10 into which the component 30 is inserted is placed on a work table or the like so that the opening of the first member 10 faces upward (the direction opposite to the direction of gravity). The above-mentioned temporary fixing part 13b does not need to be provided.

  After this third step, the part to be the first fixing part of the first side wall 11 and the part to be the second fixing part of the second side wall 21 are simultaneously bent toward the component 30 side, and the first fixing part 13a is second fixed. The part 23 can be pressed. In other words, after the third step, the first fixing portion 13a is fastened together by bending the portion that becomes the first fixing portion of the first side wall 11 and the portion that becomes the second fixing portion of the second side wall 21. The second fixing portion 23 can be pressed. Further, after the third step, the first fixing portion 13a is subjected to caulking by bending the portion that becomes the first fixing portion of the first sidewall 11 and the portion that becomes the second fixing portion of the second sidewall 21. In other words, the two fixing portions 23 can be pressed. Therefore, the first fixing portion 13a can be rephrased as a first caulking portion, and the second fixing portion 23 can be rephrased as a second caulking portion. In addition, when bending the 1st fixing | fixed part 13a and the 2nd fixing | fixed part 23, it is bent so that the springback amount of the 1st fixing | fixed part 13a may become larger than the springback amount of the 2nd fixing | fixed part 23.

  Thereby, as shown in FIG. 4B, at least a part of the first fixing part 13 a and at least a part of the second fixing part 23 are arranged in the recess 33. That is, a portion (reference numeral 13a in FIG. 5 and the like) in the first side wall 11 and a portion (reference numeral 23 in FIG. 9 and the like) in the second side wall 21 are bent, At least a part of the portion is disposed in the recess 33 of the component 30.

  Further, the through hole 14 is formed in the first side wall 11 by bending the portion to be the first fixing portion in the first side wall 11 to form the first fixing portion 13a. Therefore, at least a part of the second fixing portion 23 is disposed in the recess 33 of the component 30 through the through hole 14 formed in the first side wall 11.

  In the present embodiment, the example in which the part that becomes the first fixing part of the first side wall 11 and the part that becomes the second fixing part of the second side wall 21 are bent at the same time is adopted. It is not limited. First, the part which becomes the 1st fixing part of the 1st side wall 11 may be bent, and the part which becomes the 2nd fixing part of the 2nd side wall 21 may be bent after that.

  In addition, when the first member 10 is bent so that the portion in contact with the second fixing portion 23 is a curved surface, stress concentration on the second fixing portion 23 can be avoided by the curved surface. That is, when the curved surface of the first fixing portion 13a comes into contact with the second fixing portion 23, stress concentration on the second fixing portion 23 can be avoided by the curved surface. Therefore, wear and breakage between the first fixing portion 13a and the second fixing portion 23 can be reduced.

  Thus, the housing in the present embodiment includes the first member 10 and the second member 20, and the first side wall outer surface 11b of the first side wall 11 while the first bottom portion 12 and the second bottom portion 22 face each other. And the second side wall inner surface 21a of the second side wall 21 face each other (opposite contact), the second member 20 is covered with the first member 10 and is surrounded by the first member 10 and the second member 20. The component 30 disposed in the space is sandwiched between the first bottom portion 12 and the second bottom portion 22.

  The second fixing portion 23 always receives the restoring force due to the spring deformation of the first fixing portion 13a in the direction of the first bottom portion 12, so that the component 30 is sandwiched and fixed between the first bottom portion 12 and the second bottom portion 22. The component 30 is housed in a space surrounded by the first member 10 and the second member 20.

  That is, as shown in FIGS. 3 and 4B and the like, the second fixing portion 23 always receives a force in the direction of the (solid) solid line arrow from the first fixing portion 13a. As a result, the first member 10 always receives a force in the direction of the dashed-dotted arrow, that is, is always drawn in the direction of the dashed-dotted arrow. On the other hand, the second member 20 always receives a force in the direction of the two-dot chain line arrow, that is, is always drawn in the direction of the two-dot chain line arrow. 4A and 4B, the lower side of the drawing is the opening side of the first member 10 (the second bottom portion 22 side of the second member 20).

  Therefore, in the state in which the component 30 is fixed and accommodated by the first member 10 and the second member 20, the first bottom portion 12 and the second bottom portion 22 approach the first member 10 and the second member 20. A force will be applied in the direction. Therefore, even when the component 30 is contracted and deformed (that is, when the length from the first surface 321 to the second surface 322 of the component 30 is shortened), the first bottom portion 12 and the second bottom portion 22 are By approaching, the fixing force of the component 30 by the first member 10 and the second member 20 can be maintained.

(Modification 1)
In the case where a part of the second side wall 21 that is bent is used as the second fixing portion 23 as in the above-described embodiment, a part of the first side wall outer surface 11b and the second side wall 21 are bent. In a state where a part of the second side wall 21a of the side wall 21 is opposed, a part of the first side wall 11 and a part of the second side wall 21 are bent at the same time, whereby the first fixing part 13a and the second fixing part are fixed. The portion 23 can be formed.

  However, when the part of the first side wall 11 and the part of the second side wall 21 are bent at the same time, the second side wall inner surface 21a of the second fixing part 23 is scraped by the end of the first fixing part 13a. There is a possibility that the thickness of the second fixing portion 23 is reduced and the pressing force of the first fixing portion 13a against the second fixing portion 23 is reduced. That is, the fixing force for fixing the component 30 between the first member 10 and the second member 20 may be reduced.

  Therefore, as in Modification 1 shown in FIG. 11, the length of the first fixing portion 13 a may be longer than the length of the second fixing portion 23. By doing so, a part of the first side wall 11 and the second side wall inner surface 21a of a part of the first side wall 11 face each other and a part of the first side wall 11 and the second side wall inner surface 21a of the second side wall 21 face each other. Even when a part of the second side wall 21 is bent at the same time, it is possible to suppress the second side wall inner surface 21a of the second fixing portion 23 from being scraped by the end portion of the first fixing portion 13a. Therefore, it can suppress that the fixing force which fixes the components 30 with the 1st member 10 and the 2nd member 20 falls.

(Modification 2)
In the case where a part of the second side wall 21 that is bent is used as the second fixing portion 23 as in the above-described embodiment, a part of the first side wall outer surface 11b and the second side wall 21 are bent. In a state where a part of the second side wall 21a of the side wall 21 is opposed, a part of the first side wall 11 and a part of the second side wall 21 are bent at the same time, whereby the first fixing part 13a and the second fixing part are fixed. The portion 23 can be formed.

  However, when the part of the first side wall 11 and the part of the second side wall 21 are bent at the same time, the second side wall inner surface 21a of the second fixing part 23 is scraped by the end of the first fixing part 13a. There is a possibility that the thickness of the second fixing portion 23 is reduced and the pressing force of the first fixing portion 13a against the second fixing portion 23 is reduced. That is, the fixing force for fixing the component 30 between the first member 10 and the second member 20 may be reduced.

  Therefore, as in Modification 2 shown in FIG. 12, the end of the second fixing portion 23 is disposed closer to the component 30 than the end of the first fixing portion 13a. The end portion (that is, the corner portion or the portion that contacts the second fixing portion 23) may have a curved surface shape. That is, the curved surface portion 13a1 may be provided at an end portion of the first fixing portion 13a or a portion that contacts the second fixing portion 23. Here, the example which provides the curved surface part 13a1 in the edge part of the 1st fixing | fixed part 13a is employ | adopted.

  By doing so, a part of the first side wall 11 and the second side wall inner surface 21a of a part of the first side wall 11 face each other and a part of the first side wall 11 and the second side wall inner surface 21a of the second side wall 21 face each other. Even when a part of the second side wall 21 is bent at the same time, it is possible to suppress the inner surface of the second fixing portion 23 from being scraped by the end portion of the first fixing portion 13a. Therefore, it can suppress that the fixing force which fixes the components 30 with the 1st member 10 and the 2nd member 20 falls.

(Modification 3)
In the above-described embodiment, the second fixing portion 23 is bent and formed, but the present invention is not limited to this. As in Modification 3 shown in FIGS. 13 and 14, the second fixing portion 231 formed by a die casting method (for example, die casting) can also be employed. The second fixing portion 231 can receive a force in the direction of a (solid) solid arrow from the first fixing portion 13a in a state where the second member 20 is put on the first member 10 in which the component 30 is inserted. Provided at various positions.

  The second fixing portion 231 is provided before the second member 20 is put on the first member 10. Therefore, the slit 232 is provided in order to easily cover the first member 10 with the second member 20 provided with the second fixing portion 231.

  Thus, since the 2nd fixing | fixed part 231 in the modification 3 is formed by the die casting method (for example, die-casting), the amount of springbacks becomes zero. Therefore, the spring back amount of the first fixing portion 13a can be made larger than the spring back amount of the second fixing portion 231.

  Even in this case, as shown in FIG. 14, the second fixing portion 231 always receives a force in the direction of the solid arrow from the first fixing portion 13a. As a result, the first member 10 always receives a force in the direction of the dashed-dotted arrow, that is, is always drawn in the direction of the dashed-dotted arrow. On the other hand, the second member 20 always receives a force in the direction of the two-dot chain line arrow, that is, is always drawn in the direction of the two-dot chain line arrow. In FIG. 14, the lower side of the drawing is the opening side of the first member 10 (the second bottom portion 22 side of the second member 20).

  Therefore, in the state in which the component 30 is fixed and accommodated by the first member 10 and the second member 20, the first bottom portion 12 and the second bottom portion 22 approach the first member 10 and the second member 20. A force will be applied in the direction. Therefore, even when the component 30 is contracted and deformed (that is, when the length from the first surface 321 to the second surface 322 of the component 30 is shortened), the first bottom portion 12 and the second bottom portion 22 are By approaching, the fixing force of the component 30 by the first member 10 and the second member 20 can be maintained.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not restrict | limited to the embodiment mentioned above at all, and various deformation | transformation are possible in the range which does not deviate from the meaning of this invention.

  DESCRIPTION OF SYMBOLS 10 1st member (housing | casing), 11 1st side wall (1st side part), 11a 1st side wall inner surface, 11b 1st side wall outer surface, 12 1st bottom part, 12a 1st bottom part inner surface, 13a 1st fixing | fixed part, 13a1 Curved surface portion, 13b Temporary fixing portion, 14 Through hole, 20 Second member (housing), 21 Second side wall (second side), 21a Second side wall inner surface, 21b Second side wall outer surface, 22 Second bottom portion, 22a 2nd bottom part inner surface, 23,231 2nd fixing | fixed part, 232 slit, 24 through-hole, 30 components, 31 side surface, 321 1st surface (one surface), 322 2nd surface (opposite surface), 33 recessed part

Claims (8)

A housing that holds components while being fixed,
A first bottom portion having a shape corresponding to one surface of the component; and a first side portion rising from the first bottom portion corresponding to a side surface of the component, wherein a portion facing the first bottom portion is open. A first member that is
A portion having a second bottom portion having a shape corresponding to the opposite surface of the one surface of the component, and a second side portion rising from the second bottom portion corresponding to the side surface of the component, and facing the second bottom portion A second member that is open,
The second member is placed on the first member so that the outer surface of the first side portion and the inner surface of the second side portion face each other while the first bottom portion and the second bottom portion face each other. The component arranged in the space surrounded by the first member and the second member is sandwiched between the first bottom portion and the second bottom portion,
The first side portion is provided with a first fixing portion bent to the component side disposed in the space, and a through hole is provided around the first fixing portion.
The second side portion is provided with a second fixing portion that protrudes through the through-hole on the component side arranged in the space and contacts the first fixing portion,
In a state where the second member is put on the first member, the second fixing portion always receives a restoring force due to spring deformation of the first fixing portion toward the first bottom portion, thereby the first bottom portion and A case in which the component is housed in a space surrounded by the first member and the second member while the component is sandwiched and fixed by the second bottom portion.   2. The casing according to claim 1, wherein the first fixing portion is formed by bending and projecting a part of the first side portion on the component side arranged in the space.   3. The housing according to claim 1, wherein the second fixing portion has a part of the second side portion that is bent and protrudes toward the component side disposed in the space.   The housing according to claim 3, wherein a spring back amount of the first fixing portion is larger than a spring back amount of the second fixing portion.   The length of the 1st fixed part is more than the length of the 2nd fixed part, The case according to claim 3 or 4 characterized by things.   An end portion of the second fixing portion is disposed closer to the component side than an end portion of the first fixing portion, and an end portion of the first fixing portion has a curved surface shape. The housing according to claim 3 or 4.   The casing according to any one of claims 1 to 6, wherein the first member is made of stainless steel, and the second member is made of aluminum.   The casing according to any one of claims 1 to 6, wherein the first member is made of stainless steel, and the second member is made of SPCC.

Images