JP5679146B2 - Shield case fixing structure in electronic equipment - Google Patents

Description

  The present invention relates to a fixing structure of a shield case in an electronic device such as a distributor, a booster, a converter, or a mixer.

  As a shield case fixing structure in electronic equipment, a die-cast shield case is mounted obliquely in the case body, and when the shield case is housed in the case body, a protrusion formed at the bottom of the side wall of the shield case Is placed on the support surface of the case body, and the lower surface of the shield case is placed on the protruding part (shield case support part) formed on the bottom wall of the case body, and is closed with a lid in the stored state Is known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 9-46081

  In such a structure, since the shield case is housed in a stable state in the case main body and is simply covered, the support of the shield case is unstable.

  An object of the present invention is to provide a shield case fixing structure in an electronic device that can realize a stable fixing structure by slidingly inserting and attaching a shield case to a main body case portion of an equipment casing.

The invention of claim 1 is a shield case fixing structure in an electronic device, wherein the device casing has a main body case portion to which a shield case having an electronic circuit is attached, and the main body case portion is one surface of the shield case. A main body plate portion having a contact surface with which the portion contacts, and left and right side plate portions provided on the left and right sides of the main body plate portion and having an engagement portion, while the side surface portion of the shield case is elastic with the engagement portion. A locked portion that restricts the sliding direction of the shield case and the movement in the direction orthogonal thereto is formed in an engaging relationship, and one surface portion of the shield case is slid along the contact surface of the main body plate portion. wherein are those wherein the shield case is attached to the main body case portion, the right and left side plates of the body case portion is partially cut out in the elastic piece portion by The elastic piece portion is formed with a restricting convex portion protruding inside the elastic piece portion as an engaging portion for restricting movement of the shield case in a direction perpendicular to the sliding direction of the shield case, The side surface portion of the case extends along the side surface portion of the shield case as a locked portion that restricts movement in a direction perpendicular to the slide direction of the shield case, and moves in the slide direction of the shield case. A ridge that slides on the base end side of the restricting convex portion is formed .

If it does in this way, the slide of the said shield case is carried out by the engagement relationship of the engaging part formed in the right-and-left side board part of a main body case part (apparatus casing), and the to- be-latched part provided in the side part of a shield case. since movement in a direction perpendicular directions and it is regulated, against the body case portion, a stable locking fixing is achieved for the sliding direction and the two directions of a direction perpendicular to that of the shield case.
In particular, the structure that restricts the movement of the shield case in the direction orthogonal to the sliding direction can be easily configured by using the elastic piece portion.

According to a second aspect of the present invention, the elastic piece portion has an end surface as an engaging portion that restricts the movement of the shield case in the sliding direction, and the side surface portion of the shield case has a slide of the shield case. As a locked portion that restricts movement in the direction, it is desirable that a locking convex portion that contacts and regulates the end face of the elastic piece portion is formed.

  In this way, by using the elastic piece portion, the structure that restricts the movement of the shield case in the sliding direction can be simplified by the engagement relationship between the locking convex portion of the shield case and the end surface of the elastic piece portion. Can be configured.

According to a third aspect of the present invention, the side surface of the shield case is provided with a locking protrusion that contacts and regulates the end face of the elastic piece as a locked portion that restricts movement of the shield case in the sliding direction. The locking projection is a triangular shape that has a height that decreases toward the tip when viewed from the side and extends in a direction perpendicular to the sliding direction, and is formed integrally with the ridge. On the other hand, the end face of the elastic piece portion is restricted by the locking portion may be configured to be an end face of the restricting protrusion portion.

  In this way, by using the elastic piece portion, it is possible to easily configure a structure in which the locking convex portion climbs over the regulating convex portion and is latched on the end surface of the regulating convex portion after getting over.

Since the present invention is configured as described above, the engagement relationship between the engagement portion formed on the left and right side plate portions of the main body case portion (device casing) and the locked portion formed on the side surface portion of the shield case. in, that the sliding direction of the shield case and the movement in the direction perpendicular thereto is restricted, for the two directions of a direction perpendicular pairs to the sliding direction and its front SL shield case to the body case section to realize a stable locked and fixed Can do.

It is a perspective view which shows the state which looked at the electronic device used for the fixing structure of the shield case in the electronic device which concerns on this invention from the front side. It is a perspective view which shows the state which looked at the same electronic device from the back side. It is a bottom view which shows the said electronic device in the state which removed the mast attachment metal fitting. It is the perspective view which looked at the state which fixed the said electronic device to the mast from the front side. It is the perspective view which looked at the state which fixed the said electronic device to the mast from the back side. It is the perspective view which looked at the state which fixed the said electronic device to the mast from the right side upper surface. It is a top view of the state which fixed the said electronic device to the mast. (A) is a disassembled perspective view which shows the state which removed the mast attachment metal fitting from the electronic device, (b) is a front view of a bolt member. It is a left view of the said electronic device. It is sectional drawing of the AA direction of FIG. It is sectional drawing of the BB direction of FIG. It is a disassembled perspective view which shows the relationship between an apparatus casing and a shield case. It is sectional drawing of CC direction of FIG. It is sectional drawing of the DD direction of FIG. It is sectional drawing of the EE direction of FIG. (A) (b) is explanatory drawing of the attachment procedure which attaches a shield case to a main body case part. (A) (b) is explanatory drawing of the attachment procedure which attaches a case cover part to a main body case part. (A)-(c) is a figure which shows the other example of an electronic device, respectively. (A) (b) is explanatory drawing in the case of attaching a waterproof cap, respectively.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description, the side on which the main body portion 4 is provided will be described as the front side, and the side on which the attachment portions 6A and 6B are provided will be described as the bottom surface side.

  As shown in FIGS. 1 to 4, the device casing 3 in the device main body 2 of the electronic device 1 (for example, a two-distributor) projects integrally with a rectangular parallelepiped main body portion 4 and the back side of the main body portion 4. A holding portion 5 provided with an outer peripheral portion positioned inward from the outer peripheral portion of the main body portion 4 is provided. A mast fixing bracket 11 for attaching the electronic device 1 to the mast M is detachably held by the holding portion 5. At the lower part of the main body 4, attachment parts 6 A and 6 B are provided so that the electronic device 1 can be attached not only to an outdoor mast but also to an attachment surface such as a wall surface. The attachment parts 6 A and 6 B include A mounting screw 15 for mounting the electronic device is provided.

  In the state shown in FIGS. 1 and 2, the mast fixture 11 is in the stowed state, and when the electronic device is attached to the mast M, as shown in FIGS. A device casing 3 (electronic device) is fixed to M. A shield case 20 having an electronic circuit for processing a high-frequency signal is accommodated in the main body 4 of the device casing 3, and an F-type connector 8 (connection) for inputting and outputting signals is provided on the lower surface of the main body 4. A plurality of stoppers are provided so as to protrude downward.

  As shown in FIG. 8A, the mast fixing bracket 11 includes a bolt member 12, a pressing bracket 13 (pressing member), and one wing nut 14 (nut member).

  As shown in FIG. 8B, the bolt member 12 is formed by bending a wire rod into a U-shape, and includes a locking rod portion 12A and a screw rod portion 12B extending in parallel with the locking rod portion 12A. And a connecting rod portion 12C that connects the base ends of the locking rod portion 12A and the screw rod portion 12B to each other, and is held rotatably with respect to the holding portion 5 with the connecting rod portion 12C as a rotation axis. . The locking bar portion 12A is regularly provided with a plurality of locking recesses 12Aa, 12Aa,... Capable of locking one end of the presser fitting 13 at regular intervals. Each locking recess 12Aa has a function of restricting the pressing metal 13 from moving to the distal end side or the proximal end side of the locking rod part 12A in a state where the notch 13a of the pressing metal 13 is engaged.

  In addition, one latching recessed part 12Aa is provided between two protrusion part 12Ab which protrudes outward from the outer peripheral surface of a rod-shaped part with a circular cross section. The projecting portion 12Ab is formed by crushing a part of the locking rod portion 12A and projecting outward, and positions corresponding to the diameters of a plurality of types of masts to which the device casing 3 (electronic device) is fixed. It is provided at regular intervals so as to include. That is, since the holding portion 5 is formed with a recess 5a into which the mast M is fitted, as shown in FIG. 7, when the diameter of the mast M is L, for example, the locking recess 12Aa corresponding to the diameter L is selected. If the notch 13a is engaged, the mast M can be sandwiched and fixed between the recess 5a and the presser fitting 13. This is because the locking recess 12Aa is provided at least at a position corresponding to the diameter of the mast M to which the device casing 3 (electronic device) is fixed.

  The presser fitting 13 is formed in a U-shaped cross section by a flat metal fitting body 13A (main body portion) and two side plate portions 13B and 13C extending in parallel in the same direction on both upper and lower sides of the metal fitting body 13A. A notch 13a extending to one side plate portion 13C and detachably engaging with the locking rod portion 12A is provided on one end side of the presser fitting 13 (metal body 13A) on the other end side. Each has a through hole 13b through which the screw rod portion 12B is inserted. The wing nut 14 is screwed into the male screw 12Ba of the screw rod portion 12B protruding through the insertion hole 13b. Moreover, recessed part 13Ba and 13Ca which contact the outer peripheral surface of the mast M are formed in the side-plate parts 13B and 13C. The metal fitting body 13A has a recess 13c formed at the center, and the necessary rigidity is ensured.

  The screw rod portion 12B is formed with a male screw 12Ba so as to be tightened by rotating the wing nut 14 on the side where the locking rod portion 12A is located when being attached to the mast. The rotating direction R1 that rotates and the direction R2 in which the notch 13a of the presser fitting 13 engages with the locking recess 12Aa coincide with each other (see FIG. 5).

  Therefore, in a state where the notch 13a is engaged with any one of the locking recesses 12Aa, when the wing nut 14 is rotated and tightened, the holding recess 13A causes the pressing metal 13 to move in the axial direction with respect to the locking bar portion 12A. Since it is prevented from moving or coming off, it can be fixed without the operator holding down the pressing metal 13 by hand.

  Moreover, as shown in FIGS. 9-11, the upper end part 5e of the holding | maintenance part 5 is formed as a flat surface (holding surface), and a lower end part is the recessed part 5b by the side of the main-body part 4, and the receiving part 5c outside it. Is formed. The receiving portion 5c is further formed with an engaging recess 5d that engages with the connecting rod portion 12C when the bolt member 12 is housed.

  Further, the main body portion 4 and the attachment portions 6A and 6B are connected via the connection portions 7A and 7B, and the through-holes 9A and 9B are provided between the attachment portions 6A and 6B and the holding portion 5 by the connection portions 7A and 7B. Is formed. On the upper side of the connecting portions 7A and 7B, the vicinity of the base end portion of the locking rod portion 12A and the screw rod portion 12B of the bolt member 12 is engaged with the mast M, and both the rod portions 12A and 12B are engaged. Engaging recesses 7Aa and 7Ba are formed to horizontally support the.

  In the bolt member 12, the connecting rod portion 12C engages with the engaging recess 5d of the receiving portion 5c, and the locking rod portion 12A and the screw rod portion 12B lower the through holes 9A and 9B on both sides of the holding portion 5 below. (The presser fitting 13 is placed on the upper end portion 5e of the holding portion 5), the connecting rod portion 12C is located in the recess 5b, and the locking rod portion 12A and the screw are inserted. The base end part with the rod part 12B can take the mast attachment state which engages with the engaging recessed parts 7Aa and 7Ba of the connecting parts 7A and 7B. As described above, when the locking rod portion 12A and the screw rod portion 12B of the bolt member 12 are horizontally supported, the locking rod portion 12A and the screw rod portion 12B of the bolt member 12 are provided in the engaging recesses 7Aa and 7Ba. The recess 5b extends deeper than the positions of the engagement recesses 7Aa and 7Ba so that the bolt member 12 can be rotated about the connecting rod 12C as a rotation axis. It has become.

  As shown in FIGS. 12 to 15, the main body portion 4 of the device casing 3 includes a main body case portion 21 in which the holding portion 5 is formed on the back side and the shield case 20 is attached on the front side, and the main body case portion 21 includes It is comprised by the case cover part 22 inserted so that the shield case 20 may be covered. Inside the shield case 20, an electronic circuit (not shown) is accommodated, and a plurality of connectors 8 protrude.

The main body case portion 21 includes a main body plate portion 21A with which one surface portion of the shield case 20 contacts, left and right side plate portions 21B and 21B provided on the left and right sides of the main body plate portion 21A, and one end portions of the left and right side plate portions 21B and 21B And the bottom plate 21C for connecting the main plate 21A and the main plate 21A. The shield case 20 is slid on the main case 21 and the one surface of the shield case 20 is slid on the main plate 21A of the main case 21. It can be attached. The bottom plate 21C has a cylindrical portion 21Ca through which a plurality of connectors 8 projecting from the shield case 20 (electronic circuit) are inserted, and an LED mounting hole 21Cd into which the convex portion 32a of the LED cover 32 covering the LED 31 is fitted. Is formed. Further, when the shield case 20 is attached, the bottom surface side plate portion 21C is provided with a regulation rib 21Ce for contact with the lower end surface of the shield case 20 to regulate the position (see FIG. 14).

  The case cover portion 22 is attached to the main body case portion 21 by being moved along the main body plate portion 21A. In the attached state, the case cover portion 22 is attached to the main body plate portion 21A of the main body case portion 21 via the shield case 20. Opposing front side plate 22A, left and right side plates 22B, 22B located outside the left and right side plates 21B, 21B of the main body case 21, and back side plate 22C located on the rear side of the main plate 21A Have Reinforcing ribs 22Aa and 22Aa that are in contact with the shield case 20 are formed inside the front side surface plate portion 22A. The front end portion of the reinforcing rib 22Aa is a fitting end portion 22Aaa (see FIG. 3) that is a free end away from the front side plate portion 22A, and the case cover portion 22 is elastically fitted into the main body case portion 21. In this state, it is fitted into a fitting hole 21 </ b> Cc formed in the bottom surface side plate portion 21 </ b> C of the main body case portion 21.

  The back side surface plate portion 22C is formed with a rectangular opening 22Ca whose lower side is open, and on both sides thereof, as shown in FIG. 13, the guide groove 21Ab of the main body plate portion 21A of the main body case portion 21 is formed. , 21Ab are slidably engaged with guide projections 22Cb, 22Cb.

  The left right plate portion 21B is partially cut away to form an elastic piece portion 21Ba. That is, a rectangular first notch 21Bb is formed on the bottom surface side plate portion 21C side, leaving a coupling portion with the main body plate portion 21A, and the upper and side portions sandwiching the elastic piece portion 21Ba. A rectangular second notch 21Bc to be opened is formed. Therefore, the rectangular elastic piece 21Ba is formed between the notches 21Bb and 21Bc.

  On the inner side of the elastic piece 21Ba (side plate portion 21B), a regulating convex portion 21Baa (engaging portion) is formed that protrudes with a predetermined width on the tip edge side. The restricting convex portion 21Baa functions as an engaging portion that restricts the movement of the shield case 20 in the thickness direction Z perpendicular to the slide direction X of the shield case 20. Further, the end surface 21Bab (end surface extending in the direction Z perpendicular to the sliding direction X) of the elastic piece 21Ba facing the first cutout 21Bb functions as an engaging portion that restricts the movement in the sliding direction X. The elastic piece 21Ba itself regulates the movement in the width direction Y of the shield case 20 perpendicular to the slide direction X of the shield case 20.

  Further, on the left and right side surfaces of the shield case 20, in order to restrict the movement in the direction Z and the sliding direction X perpendicular to the sliding direction X due to the engagement relationship between the restricting convex portion 21Baa and the end surface 21Ba of the elastic piece portion 21Ba. A protruding portion 20a and a locking projection 20b are formed as the locked portions. The protruding portion 20a is an engaged relationship with the restricting convex portion 21Baa and is a locked portion that regulates the movement in the direction Z perpendicular to the sliding direction X. The engaging convex portion 20b is in an engaged relationship with the end surface 21Bab. It functions as a locked portion that restricts movement in the sliding direction X. The protruding portion 20a extends along the side surface portion of the shield case 20, and slides on the base end side of the restricting convex portion 21Baa when the shield case 20 slides. The locking convex portion 20b The movement in the slide direction X is restricted by contacting the end face 21Ba of the elastic piece portion 21Ba. The locking projection 20b has a triangular shape with a height that decreases toward the tip when viewed from the side and extends in a direction Z perpendicular to the sliding direction X, and is integrally formed with the protrusion 20a. . And the protrusion amount from the surface of the shield case 20 of this protrusion part 20a and the latching convex part 20b is the same quantity.

  Further, as shown in FIG. 14, the first engagement convex portion 21 </ b> Bd is formed on the left and right side plate portions 21 </ b> B of the main body case portion 21, while the left and right side plate portions 22 </ b> B of the case cover portion 22 are provided with case covers. A first engaged recess 22Ba that is detachably engaged with the first engagement protrusion 21Bd is formed in a state in which the portion 22 is elastically fitted into the main body case portion 21. When the case cover portion 22 is elastically fitted into the main body case portion 21, the tip end on the insertion side of the case cover portion 22 protrudes further downward than the bottom surface side plate portion 21C. 21Bd is engaged with the engaged recess 22Ba. Here, it is possible to form the engaged recesses on the left and right side plate portions 21B of the main body case portion 21 and the engagement convex portions on the left and right side surface plate portions 22B of the case cover portion 22, respectively.

  Further, as shown in FIG. 15, the second engagement convex portion 21Be is also formed on the upper end portion of the main body plate portion 21A of the main body case portion 21, and the upper side of the back side surface plate portion 22C of the case cover portion 22 is opened. An engaged recess 22Cc that faces 22Ca is formed. In a state where the case cover portion 22 is elastically fitted into the main body case portion 21, the second engaging convex portion 21Be is engaged with the engaged concave portion 22Cc so as to be detachable.

  Next, a procedure for housing the shield case 20 (electronic circuit) in the device casing 1 will be described.

  First, as shown in FIGS. 16 (a) and 16 (b), the bottom surface side plate portion 21C is provided from the open end side with the one surface portion of the shield case 20 along the inner surface of the main body plate portion 21A of the main body case portion 21. Slide it to the other side. During the sliding movement, the protrusion 20a on the shield case 20 side slides while the movement in the case thickness direction Z is restricted by the restricting projection 21Baa on the main body case 21 side. When the second locking projection 20b passes over the regulation projection 21Baa, the elastic piece 21Ba spreads outward due to elastic deformation and is allowed to pass, and after passing, the regulation rib 21Ce of the bottom side plate portion 21C. The lower end surface of the shield case 20 comes into contact with the elastic piece 21Ba and returns to its original position, and the movement of the locking projection 20b in the sliding direction X is locked at the end surface 21Bab. Thus, the shield case 20 is attached so as not to be inadvertently detached from the main body portion 21A of the main body case portion 21. In this state, the connector 8 protruding from the shield case 20 (electronic circuit) is inserted through the cylindrical portion 21Ca of the bottom side plate portion 21C.

  When the shield case 20 is attached, first, the convex portion 32a of the LED cover 32 that covers the LED 31 is fitted into the LED attachment hole 21Cd, and then the shield case 20 is attached. Since the LED cover 32 is attached together in this way, the distance between the connectors 8 is different on the left and right sides, and the erroneous insertion of inserting the shield case 20 (electronic circuit) in a state of being reversed left and right is avoided. The

  Further, as shown in FIGS. 17A and 17B, the guide convex portion 22Cb of the back side surface plate portion 22C of the case cover portion 22 is engaged with the guide concave groove 21Ab of the main body plate portion 21A of the main body case portion 21. Similarly to the case of attaching the shield case 20, it is slid. At the time of this sliding movement, the sliding movement is performed with the guide convex portion 22Cb of the case cover portion 22 engaged with the guide concave groove 21Ab of the main body case portion 21A. It becomes. Finally, the engaging convex portion 21Bd on the main body case portion 21 side and the engaged concave portion 22Ba on the case cover portion 22 side are detachably engaged.

  In this way, the left and right side plate portions 21B of the main body case portion 21 are inserted into the engaged recesses 22Ba of the side surface plate portions 22B of the case cover portion 22 in a state where the case cover portion 22 is elastically fitted into the main body case portion 21. The engaging protrusion 22Bd is detachably engaged with the engaging protrusion 21Bd, and the fitting end 22Aaa at the tip of the reinforcing rib 22Aa is fitted in the fitting hole 21Cc of the bottom surface side plate 21C. In this way, the case cover portion 22 is firmly fixed to the main body case portion 21, and waterproofing is also ensured.

  Further, the elastic piece portion 21Ba is also pressed from the outside by the case cover portion 22, and the engagement of the elastic piece portion 21Ba is difficult to be released. That is, the movement of the shield case 20 in the width direction Y is restricted by the case cover portion 22 via the elastic piece portion 21Ba.

  Further, since the front end edge 22a on the insertion side of the case cover portion 22 protrudes further downward than the bottom surface side plate portion 21C in a state where the case cover portion 22 is elastically fitted into the main body case portion 21, the case cover It becomes difficult to understand how the portion 22 is attached to the main body case portion 21.

  In addition to the above embodiment, the present invention can be implemented with the following modifications.

  (i) In the above-described embodiment, the present invention is applied to the two distributor as an electric device, but as shown in FIGS. 18A to 18C, it can also be applied to the electronic device 1A that is a four distributor. Of course, it can also be applied to boosters, converters, and mixers.

  (ii) In the above-described embodiment, a plurality of locking recesses are provided in the locking rod portion 12A at regular intervals so that they can be fixed to a plurality of types of masts having different diameters, but electronic components are fixed. Of course, when there is only one type of mast and the diameter of the mast is constant, it is not necessary to provide a plurality of locking recesses, and it is only necessary to provide only one. It is also possible to provide locking recesses only at a plurality of positions corresponding to the diameter of the mast that is scheduled for attachment.

  (iii) In the above embodiment, the locking recess (protrusion) is formed by crushing a part of the locking rod portion 12A by rolling, for example. Needless to say, the engaging portion may be formed by another processing method without being limited thereto. Further, the shape of the protruding portion does not need to be a disc shape, and may be a shape that can engage with the notch to lock the pressing metal. Therefore, it is not necessary to form the locking recesses on the entire circumference, and any shape that can regulate the movement of the pressing metal in the axial direction may be used even if only a part is formed.

  (iv) In the above-described embodiment, the insertion portion of the presser fitting 13 through which the screw rod portion 12B is inserted is the insertion hole 13b. However, the insertion portion is not limited thereto, and a notch is formed from one side of the bolt member. It is also possible to insert into the bolt member. In this case, the notch through which the locking rod portion 12A is inserted does not need to be parallel in the extending direction of the notch through which the screw rod portion 12B is inserted.

  (v) In the above-described embodiment, the locking rod portion 12A and the screw rod portion 12B are linear, but it is not always necessary, and it may be bent or curved according to the outer peripheral surface of the mast. It is.

  (vi) Although the connector 8 is not specifically described in the above embodiment, the connector 8 is used by connecting an F-type connector provided at the end of the coaxial cable to transmit and receive a high-frequency signal. When used outdoors, as shown in FIGS. 19A and 19B, a waterproof cap 41 is provided so as to cover a connection portion between the connector 8 and a coaxial cable connector (not shown). The waterproof cap 41 is provided with an insertion portion 41B on the upper side of the main body portion 41A, and the length of the insertion portion 41B is set according to the length of the cylindrical portion 21Ca of the main body case portion 21 through which the connector 8 is inserted. Is done. The insertion portion 41B has a length substantially equal to the cylindrical portion 21Ca, and a locking portion 41Ba positioned inside the post-insertion cylindrical portion 21Ca and a flange portion 41Bb positioned outside the post-insertion cylindrical portion 21Ca. As a whole, it is formed in a tapered tapered cylinder so that it can be easily inserted into the cylindrical part 21Ca.

  (vii) In the above embodiment, the metal fitting body has a flat plate shape, but the present invention is not limited thereto. For example, as described in Japanese Patent Application Laid-Open No. 2007-12800, Needless to say, it may be bent into a square shape. Further, the structure for holding the bolt member is not limited to the structure that penetrates and holds the through holes 9A and 9B from the lower side as in the above-described embodiment, but as described in JP-A-2007-12800, It is also possible to adopt a structure in which a bolt member is inserted and held in a through hole formed in the holding portion in the width direction.

M Mast 1 Electronic device 2 Device body 3 Device casing 4 Body portion 5 Holding portion 11 Mast fixing bracket 12 Bolt member 12A Locking rod portion 12Aa Locking recess portion 12B Screw rod portion 12C Connecting rod portion 13 Holding bracket 13A Bracket body 13B, 13C Side plate part 13a Notch 13b Insertion hole 14 Wing nut (nut member)
20 Shield Case 20a Projection 20b Locking Protrusion 21 Main Body Case 21A Main Body Plate 21B Side Plate 21Ba Elastic Piece 21Ba Restricting Protrusion 21Bab End Surface 21Bd Engagement Protrusion 21Be Engagement Protrusion 21C Bottom Side Plate 21Ca Tubular Part 22 Case cover part

Claims (3)

The device casing is a shield case fixing structure in an electronic device having a main body case portion to which a shield case having an electronic circuit inside is attached,
While the main body case portion includes a main body plate portion having a contact surface with which one surface portion of the shield case contacts, and a left and right side plate portion having engagement portions provided on both left and right sides of the main body plate portion,
A locked portion that restricts the sliding direction of the shield case and the movement in the direction orthogonal thereto is formed on the side surface portion of the shield case in an elastic engagement relationship with the engagement portion,
The shield case is attached to the main body case portion by sliding along one surface portion of the shield case along the contact surface of the main body plate portion ,
The left and right side plate portions of the main body case portion are partially cut out to form elastic piece portions, and the elastic piece portions are engaging portions that restrict movement in a direction perpendicular to the sliding direction of the shield case. In addition, a restricting convex portion that protrudes inside the elastic piece portion is formed, and on the side surface portion of the shield case, as a locked portion that restricts movement in a direction perpendicular to the sliding direction of the shield case, A shield in an electronic device, characterized in that a protrusion is formed that extends along a side surface of the shield case and slides on a base end side of the restricting protrusion when the shield case moves in a sliding direction. Case fixing structure. The elastic piece portion has an end surface as an engaging portion for restricting movement of the shield case in the sliding direction,
The side surface portion of the shield case is formed with a locking convex portion that contacts and restricts the end surface of the elastic piece portion as a locked portion that restricts movement of the shield case in the sliding direction. The fixing structure of the shield case in the electronic device according to claim 1 . On the side surface portion of the shield case, a locking convex portion is formed as a locked portion that restricts the movement of the shield case in the sliding direction. While the portion is a triangular shape extending in the direction perpendicular to the sliding direction as the end is seen from the side and becoming the tip side, the portion is formed integrally with the ridge,
The end face of the elastic piece portion is restricted by the locking portion, the fixing structure of the shield case in the electronic device according to claim 1, characterized in that the end surface of the restricting protrusion portion.

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