Electronic Assembly

Abstract

To provide an electronic component assembly, a cover of which cannot be removed.SOLUTION: An electronic component assembly comprises: a cylindrical case 100; a button 200 arranged upward in the case 100; a base 300 arranged downward of the button 200 in the case 100; and a cover 400 arranged downward of the base 300 in the case 100, the case 100 and the base 300 being engaged and the base 300 and the cover 400 being engaged in the vertical direction, with the engagement portion of the base 300 and the cover 400 concealed from the outside. The base 300 and the cover 400 are relatively slid in a radial direction to get fitted together and are engaged in an axial direction in the fitted state. The base 300 and the cover 400 are in contact with and constrained by the case 100 in the radial direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to electronic components assemblies. [Background technology]

[0002] A known conventional switch (electronic component assembly) is described in Patent Document 1. This type of switch includes a cylindrical case, a button that reciprocates within the case and has a movable contact attached to it, a base that has a fixed contact that the movable contact connects and disconnects to and from, and a cover that seals the base and the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-66194 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional switches, the cover is snap-fitted to the case, and the engagement tab of the cover is exposed to the outside. Therefore, while the switch is in use, there is a risk that the engagement tab may be disengaged to detach the cover from the case, leading to tampering with the base, etc.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS An object of the present invention is to provide an electronic component assembly having a non-detachable cover. [Means for solving the problem]

[0006] As a means for solving the above problem, the present invention provides an electronic component assembly comprising a cylindrical case, an electronic component arranged on one side within the case, a base arranged on the other side of the electronic component within the case, and a cover arranged on the other side of the base within the case, wherein the case and the base engage and the base and the cover engage in an axial direction, and the engaging portions of the case and the cover and the engaging portions of the base and the cover are concealed from the outside.

[0007] With this configuration, the engaging portions of the case and the cover and the engaging portions of the base and the cover are hidden from the outside, making it impossible to access each of the engaging portions from the outside. This makes it impossible for the cover to be detached from the case. Therefore, it is impossible to remove the base and the cover and modify the base and / or the electronic components.

[0008] The base and the cover may be fitted together by sliding relative to each other in a radial direction, and may be engaged with each other in an axial direction when fitted.

[0009] According to this configuration, the base and the cover are fitted together by sliding relative to each other in the radial direction, and are engaged in the axial direction when fitted together, so that the base and the cover are relatively unlikely to come off from each other in the axial direction.

[0010] The base and the cover may be configured to abut and be restrained by the case in a radial direction.

[0011] According to this configuration, the base and the cover are in contact with and constrained by the case in the radial direction, and therefore cannot move in a direction away from each other. In other words, the cover cannot be detached from the base, and the fitted state of the cover and the base can be maintained. Effect of the Invention

[0012] According to the present invention, it is possible to provide an electronic component assembly having a non-detachable cover. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a perspective view of the switch according to the embodiment. [Diagram 2] 1 is a vertical cross-sectional view (cross-sectional view taken along line X1-X1 in FIG. 1) of the switch according to the present embodiment. [Diagram 3] FIG. 2 is an exploded perspective view of the switch according to the embodiment. [Figure 4] FIG. 2 is a vertical cross-sectional view of the case according to the embodiment. [Diagram 5] FIG. 2 is a perspective view of a base according to the embodiment. [Figure 6] 5. FIG. 6 is a right side view (view taken along the X2 arrow in FIG. 5) of the base according to the embodiment. [Figure 7] 6 is a vertical cross-sectional view (cross-sectional view taken along line X3-X3 in FIG. 5) of the base according to the present embodiment. [Figure 8] 9A and 9B are vertical cross-sectional views of the base and cover according to the present embodiment (cross-sectional view taken along line X4-X4 in FIG. 5 and cross-sectional view taken along line X6-X6 in FIG. 9). [Figure 9] FIG. 2 is a perspective view of a cover according to the embodiment. [Figure 10] 10 is a right side view (view taken along the X5 arrow in FIG. 9) of the cover according to the embodiment. [Figure 11] 7 is a partially sectional perspective view (corresponding to a cross section taken along line X7-X7 in FIG. 2) showing an assembled state of the base and the cover according to the embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] An embodiment of the present invention will be described with reference to Figures 1 to 11. The directions of "FRONT, REAR, LEFT, RIGHT, TOP, and BOTTOM" shown in Figures 1 to 11 are used as references. However, the direction in which the switch 1 is used is not limited to these directions.

[0015] <Switch configuration> The switch 1 (electronic parts assembly) according to this embodiment is a settlement switch (settlement button) for a slot machine (not shown), with the upper side facing the front of the slot machine (player side) and the lower side facing the inside of the slot machine. However, the purpose and mode of use of the switch 1 are not limited to this.

[0016] The switch 1 has a generally cylindrical outer shape and is centered on an axis O1 that extends in the vertical direction (see FIG. 1). However, the outer shape of the switch 1 may also be, for example, generally rectangular prism-like. The axial direction of the switch 1 is the vertical direction, and the radial direction of the switch 1 is the direction perpendicular to the axial direction (including the left-right direction and the front-back direction).

[0017] The switch 1 includes a case 100, a button 200 (electronic component), a base 300, a cover 400, two fixed contacts 500, and a harness 600 (see FIG. 3). The button 200 is disposed on the upper side (one side) within the case 100 (see FIGS. 2 and 3), the base 300 is disposed on the lower side (the other side) of the button 200, and the cover 400 is disposed on the lower side (the other side) of the base 300.

[0018] The case 100, the button 200, the base 300, and the cover 400 are made of synthetic resin. Therefore, each of the case 100, the button 200, the base 300, and the cover 400 can be elastically deformed appropriately. The case 100 and the like may be either opaque or transparent, but it is preferable that at least the case 100 is colored to conceal the inside. Furthermore, when the case 100 and the like are assembled, the axis O1, which is the center line of the switch 1, the axis O11 of the case 100, the axis O12 of the button 200, the axis O13 of the base 300, and the axis O14 of the cover 400 are aligned.

[0019] <Case> Case 100 is a cylindrical housing that houses button 200 and the like (see Figs. 2 to 4). However, case 100 is not limited to a cylindrical shape and may be, for example, a regular square tube or a regular hexagonal tube. Case 100 includes a cylindrical peripheral wall portion 110 and an intermediate wall portion 120. Intermediate wall portion 120 divides the interior of peripheral wall portion 110 in the axial direction (up and down direction) into a first storage chamber 101 above and a second storage chamber 102 below.

[0020] The first accommodating chamber 101 is a space that mainly accommodates the button 200 (see FIGS. 2 and 4). The second accommodating chamber 102 is a space that mainly accommodates the base 300, the cover 400, the fixed contacts 500, and the harness 600. The peripheral wall portion 110 includes a first peripheral wall portion 111 that surrounds the first accommodating chamber 101, and a second peripheral wall portion 112 that surrounds the second accommodating chamber 102.

[0021] <Case - peripheral wall> Two protrusions 113, 113 that protrude radially inward are formed on the inner peripheral surface of the second peripheral wall portion 112 (see FIG. 4). The two protrusions 113, 113 face each other with respect to the axis O11 as the center, and are disposed on a diameter line passing through the left-right direction. Each protrusion 113 is a portion that engages with an engagement claw 332 (see FIGS. 5 to 7) of the base 300 in the axial direction (see FIG. 2).

[0022] In addition, in the assembled state, the engagement portion between the protrusion 113 and the engagement claw 332 is hidden from the outside, that is, it is not exposed to the outside. This means that the engagement portion between the protrusion 113 and the engagement claw 332 cannot be accessed from the outside, and the diameter of the engagement claw 332 cannot be reduced from the outside with a tool or the like, and therefore the engagement claw 332 cannot be detached from the protrusion 113.

[0023] The lower surface 113a of the protrusion 113 is a tapered surface that gradually expands in diameter as it extends downward (see FIG. 4). As a result, when the base 300 is inserted into the case 100 from below, the legs 330 easily elastically deform radially inward, and the engaging claws 332 easily overcome the protrusion 113.

[0024] Two through holes 114, 114 are formed on the upper side of the second peripheral wall portion 112. The two through holes 114, 114 are holes that penetrate the second peripheral wall portion 112 in the left-right direction, face each other about the axis O11, and are arranged on a diameter line passing through the left-right direction. Each through hole 114 is a hole into which an engagement claw 242 of the button 200 is inserted (see FIGS. 2 and 3), and guides the engagement claw 242 in the axial direction.

[0025] <Case - Intermediate wall> The intermediate wall portion 120 is a wall portion integrally formed with the peripheral wall portion 110, and is disposed slightly above the middle position of the case 100 in the axial direction (see FIG. 4). The intermediate wall portion 120 includes an inner first cylindrical portion 121 and a second cylindrical portion 122 formed outside the first cylindrical portion 121.

[0026] A guide hole 123 is formed inside the first cylindrical portion 121. The guide hole 123 is an insertion hole through which the shaft portion 230 of the button 200 is inserted, and guides the shaft portion 230 in the axial direction (see FIGS. 2 and 4). The first cylindrical portion 121 is formed to be longer than the second cylindrical portion 122, and stably guides the shaft portion 230.

[0027] A return coil spring 261 is interposed between the first cylindrical portion 121 and the second cylindrical portion 122 (see FIGS. 2 and 4). That is, the first cylindrical portion 121 and the second cylindrical portion 122 support the attitude of the return coil spring 261 in the axial direction.

[0028] Insertion holes 124 are formed on the radially outer side of the second cylindrical portion 122 and on the left and right sides of the intermediate wall portion 120 (see FIG. 4). The insertion holes 124 are through holes through which the arms 240 are inserted (see FIG. 2). That is, the two insertion holes 124, 124 are symmetrical with respect to the axis O11 and are arranged on a diameter line passing through the left-right direction. Each insertion hole 124 is arc-shaped when viewed in the axial direction.

[0029] <Button> The button 200 is pressed by the player to switch between saving and paying out credits. The button 200 includes a button body 210 that reciprocates between an upper initial position (see FIG. 2) and a lower pressed-in position inside the case 100, a movable contact 251, and a return coil spring 261 (see FIGS. 2 and 3).

[0030] The button body 210 comprises a disc-shaped operating portion 220 operated by the player, a shaft portion 230 extending downward from the center of the underside of the operating portion 220, and arms 240, 240 extending downward from the left and right sides of the operating portion 220, respectively.

[0031] The operating part 220 is disposed within the first circumferential wall part 111 so as to be slidable in the axial direction. A return coil spring 261 is provided in a compressed state between the operating part 220 and the intermediate wall part 120. The return coil spring 261 biases the operating part 220 upward so that the operating part 220 (button body 210) returns to its initial position.

[0032] The shaft portion 230 has a cylindrical shape and is inserted into the guide hole 123 (see FIG. 4). A retaining hole 231 that penetrates in the front-rear direction and is a long hole in the up-down direction is formed at the lower end of the shaft portion 230. A rod-shaped movable contact 251 extending in the front-rear direction is attached to the retaining hole 231, and the retaining hole 231 holds the movable contact 251 slidably in the axial direction.

[0033] A coil spring 252 that abuts against the upper surface of the movable contact 251 and urges the movable contact 251 downward is provided within the shaft portion 230. That is, the coil spring 252 is compressed between the operation portion 220 and the movable contact 251.

[0034] When the button body 210 is pressed down, the coil spring 252 contracts slightly, and the movable contact 251 slides slightly upward within the retaining hole 231 and comes into contact with the fixed contacts 500, 500 with an appropriate contact pressure. After the button body 210 is pressed down, when the player's downward force is released, the button body 210 is returned to its initial position by the return coil spring 261.

[0035] The arm 240 is a long, thin plate-like piece extending downward from the left / right side of the operation unit 220, and is elastically deformable radially inward. The arm 240 is inserted into the insertion hole 124, and a lower end 241 of the arm 240 protrudes downward from the insertion hole 124.

[0036] An engagement claw 242 is formed so as to protrude radially outward from the outer circumferential surface of the lower end portion 241. The engagement claw 242 is inserted into the through hole 114 and is slidable up and down within the through hole 114 (see FIG. 2). That is, the engagement claw 242 engages (abuts) with the inner upper surface 114a of the through hole 114 in the axial direction, thereby holding (locking) the button body 210 in an initial position above.

[0037] The outer peripheral surface 243 of the lower end 241 and the engaging claw 242 is a tapered surface that narrows in diameter as it approaches the bottom. As a result, when the button body 210 is inserted from above the case 100, the outer peripheral surface 243 slides against the case 100, while the arm 240 smoothly narrows in diameter, so that the button body 210 can be smoothly assembled to the case 100.

[0038] <Bass> The base 300 is a member for attaching the cover 400 to the case 100, and is a member for holding the fixed contacts 500, 500, as well as a socket into which the first plug 610 is inserted (see FIGS. 5 to 8).

[0039] The base 300 includes a substantially disk-shaped base portion 310, two plugged portions 320, 320 extending upward from the left and right sides of the base portion 310, two leg portions 330, 330 extending downward from the left and right sides of the base portion 310, and a socket portion 340 extending downward from the center of the base portion 310. However, the number of plugged portions 320 and leg portions 330 is not limited to this and may be three or more.

[0040] <Base> The base 310 is disposed at an intermediate height of the base 300. Two insertion holes 311, 311 are formed in the center of the base 310, through which the fixed contacts 500, 500 are inserted and held (see FIG. 7).

[0041] The underside of the base 310 includes a first underside 312 which is roughly semicircular on the left side, a second underside 313 which is roughly semicircular on the right side and formed one step lower, and a step surface 314 which is formed between the first underside 312 and the second underside 313 and extends in the up-down and front-to-rear directions (see FIG. 5).

[0042] The first lower surface 312 is a surface that mates with a first upper surface 423 (see FIG. 9) of the cover 400. The second lower surface 313 is a surface that mates with a second upper surface 424 (see FIG. 9) of the cover 400.

[0043] The stepped surface 314 is a surface that comes into contact with a stepped surface 425 (see FIG. 9) of the cover 400 in the left-right direction (assembly direction, fitting direction) when the base 300 and the cover 400 are fitted together.

[0044] In this way, the step surface 314 of the base 300 and the step surface 425 of the cover 400 come into contact with each other, and further, the front flange 344 (see Figs. 5 and 8) described later comes into contact with the left inner surface 427b of the front engagement groove 427, so that the axis O13 (see Figs. 5 to 8) passing through the center of the base 300 coincides with the axis O14 (see Figs. 8 to 10) passing through the center of the cover 400. That is, the step surface 314 and the step surface 425, which come into contact in the left-right direction, and the flange 344 and the left inner surface 427b constitute an axis alignment mechanism that coincides the axis O13 of the base 300 with the axis O14 of the cover 400 in the fitted state.

[0045] Furthermore, when the base 300 and the cover 400 are fitted together and assembled into the case 100, the axis O13 and the axis O14 are configured to coincide with the axis O11 of the case 100 (see FIG. 2).

[0046] Furthermore, the base 300 and the cover 400 fitted together are in contact with the inner surface of the case 100 in the left-right direction and are restrained in the left-right direction (see FIG. 2). This prevents the base 300 and the cover 400 from moving relatively away from each other in the left-right direction and prevents them from separating.

[0047] <Base-inserted part> The two inserted portions 320, 320 are portions that are inserted between the first cylindrical portion 121 of the case 100 and the arm 240 of the button 200 when the base 300 is attached to the case 100 (see FIG. 2). This prevents the arm 240 from elastically deforming radially inward, and prevents the engagement claws 242 from coming off the through-holes 114. Therefore, the button body 210 will not come off the case 100.

[0048] Each inserted portion 320 has a substantially quarter-arc shape in a planar cross-sectional view, and includes a substantially quarter-arc-shaped main body portion 321 and guide portions 322, 322 formed with a thick wall on the radially outward side from both circumferential ends of the main body portion 321 (see FIG. 5). A guide groove 323 is formed between the two guide portions 322, 322 to guide the arm 240 (see FIG. 3) in the axial direction while restricting it in the circumferential direction. This keeps the button body 210 in a non-rotating state in the circumferential direction.

[0049] <Base-leg> The two legs 330, 330 are portions that engage with the inner peripheral surface of the case 100 and also engage with the cover 400. Each leg 330 includes a main body 331 and an engagement claw 332 formed on the outer peripheral surface of the main body 331 so as to protrude radially outward.

[0050] The main body 331 is thin plate-like and can be elastically deformed radially inward. The main body 331 is generally L-shaped when viewed in the left-right direction (see FIG. 6), and has a notch 333 formed on the base 310 side and on the rear side. That is, the main body 331 is provided with an engagement portion 334 on its lower side that protrudes rearward. The engagement portion 334 is a portion that engages (fits) with the rear engagement groove 428 of the cover 400 (see FIGS. 8 to 10).

[0051] The engagement claw 332 is a portion that engages with the protrusion 113 (see FIG. 4) of the case 100 in the axial direction. The engagement claw 332 and the protrusion 113 are engaged with each other to prevent the base 300 from coming off the case 100.

[0052] Upper surface 332a of engaging claw 332 is a tapered surface that gradually reduces in diameter as it extends upward. As a result, when base 300 is inserted from the lower opening of case 100 and assembled, engaging claw 332 and leg portion 330 elastically deform radially inward, so that engaging claw 332 easily climbs over protrusion 113.

[0053] The lower surface 332b (engagement surface) of the engagement claw 332 is a tapered surface that expands in diameter as it extends downward (see FIG. 7). In other words, the lower surface 332b (engagement surface) is an inclined surface that inclines downward as it extends radially outward. As a result, when a downward force is applied to the base 300 to remove the base 300 from the case 100, the engagement claw 332 expands in diameter while sliding along the lower surface 332b, which is a tapered surface (inclined surface). In other words, the leg portion 330 opens radially outward, and the engagement claw 332 does not come off the protrusion 113.

[0054] <Base-socket part> Socket portion 340 is a portion into which first plug 610 (see FIG. 3), which will be described later, is inserted. Socket portion 340 has a generally rectangular cylindrical shape, and a socket hole 341 into which first plug 610 is inserted is formed in the center.

[0055] The socket portion 340 includes a front half 342 and a rear half 342. The front half 342 and the rear half 342 are symmetrical in the front-rear direction about the axis O13. When the first plug 610 is inserted, the socket portion 340 opens in the front-rear direction, that is, the front half 342 elastically deforms forward and the rear half 342 elastically deforms rearward, so that the first plug 610 is attached to the socket portion 340.

[0056] Each half 342 comprises a half body 343 which is U-shaped when viewed in cross section, a flange portion 344 which extends forward (rear) from the outer peripheral surface of the lower end portion of the half body 343, and an engagement claw 345 (see Figure 5) which protrudes from the upper right corner of the front (rear) surface of the half body 343.

[0057] The front flange 344 is a portion that engages (fits) with the front engagement groove 427 of the cover 400 (see FIGS. 8 to 10). The rear flange 344 is a portion that engages (fits) with the rear engagement groove 428 of the cover 400.

[0058] That is, by sliding the base 300 and the cover 400 relatively closer to each other in the left-right direction (radial direction), the front flange 344 fits (engages) with the front engagement groove 427, and the rear flange 344 and the engagement portion 334 of the leg portion 330 fit (engage) with the rear engagement groove 428 (see FIG. 8). In this fitted state, the base 300 and the cover 400 are engaged in the up-down direction.

[0059] Here, the engagement (fitting) portion between the front flange 344 and the front engagement groove 427, and the engagement (fitting) portion between the rear flange 344 and the engagement portion 334 of the leg 330 and the rear engagement groove 428 are hidden from the outside. That is, these engagement (fitting) portions cannot be accessed from the outside using tools or the like. Therefore, after the switch 1 is assembled, the base 300 and the cover 400 cannot be separated.

[0060] The two engagement claws 345, 345 are portions that engage with engagement holes 426, 426 of the cover 400 in the left-right direction. That is, when the base 300 and the cover 400 are engaged (fitted), the half 342 of the base 300 and the side wall portion 420 of the cover 400 are snap-fit ​​connected based on their respective elastic forces. In this way, the engagement claws 345 engage with the engagement holes 426 and are snap-fit ​​connected, so that the base 300 and the cover 400 do not come apart in the left-right direction or the up-down direction.

[0061] The left surface 345a (cover side surface) of each engaging claw 345 is a tapered surface approaching the axis O13 side as it goes leftward (see FIG. 5). This allows the side wall portions 420, 420 of the cover 400 to easily elastically deform to the front / rear side (see FIG. 11, arrow A2) when the base 300 is assembled to the cover 400 (see FIG. 11, arrow A1).

[0062] <Cover> The cover 400 is a member that covers the lower opening of the case 100, thereby covering the lower part of the base 300. The cover 400 includes a disk-shaped base 410 and two side walls 420, 420 extending upward from the front and rear sides of the base 410. An insertion groove 430 into which the base 300 is inserted is formed between the two side walls 420, 420. That is, the cover 400 is substantially U-shaped when viewed in the left-right direction (see FIG. 10). The front and rear sides of the insertion groove 430 are open to the outside.

[0063] <Cover-base> A notch 411 is formed on the right side of the base 410 to guide the lead wire 630 of the harness 600 to the outside.

[0064] <Cover - Side wall> The two side walls 420, 420 are generally symmetrical about the axis O14 when viewed in the left-right direction (see FIG. 10). The two side walls 420, 420 are adapted to elastically deform radially outward (front / rear) when the cover 400 and the base 300 are assembled (see arrow A2 in FIG. 11). Each side wall 420 is generally 1 / 2 cylindrical and includes a base portion 421 in the lower 1 / 3 portion and a side wall main body 422 formed above the base portion 421.

[0065] A quarter-circle first upper surface 423 is formed on the left side of the upper surface of each side wall main body 422, and a quarter-circle second upper surface 424 is formed on the right side (see FIG. 9). The second upper surface 424 is one step lower than the first upper surface 423. A step surface 425 extending in the front-rear and up-down directions is formed between the first upper surface 423 and the second upper surface 424.

[0066] An engagement hole 426 that opens inward and upward is formed on the inner side (the side of the axis O14) and upper side of each second upper surface 424.

[0067] A front engagement groove 427 is formed on the inside (axis O14 side) of the front side wall main body 422. The right side (fitting opening side) of the front engagement groove 427 is open to the outside, but the left side (opposite the fitting opening) of the front engagement groove 427 is closed and does not open to the outside. In addition, the front and lower corner of the front engagement groove 427 forms an inclined surface 427a that is inclined obliquely. Then, when the cover 400 and the base 300 are in a fitted state, the front flange 344 of the base 300 abuts against the left inner surface 427b of the front engagement groove 427.

[0068] A rear engagement groove 428 is formed on the inside of the rear side wall main body 422. The right side (the fitting opening side) and left side (the opposite side to the fitting opening) of the rear engagement groove 428 are open to the outside.

[0069] In this way, the shape of the front engagement groove 427 and the shape of the rear engagement groove 428 are different, which makes it easy to grasp the orientation of the cover 400. This prevents erroneous assembly of the cover 400 and the base 300.

[0070] <Fixed contact> The two fixed contacts 500, 500 are metallic conductive members with which the movable contact 251 comes into contact / separates in response to the operation of the button 200. Each fixed contact 500 includes a contact portion 510 with which the movable contact 251 comes into contact / separates, and a terminal portion 520 extending downward from the contact portion 510.

[0071] The terminal portion 520 is inserted into and held in the insertion hole 311 of the base 300 .

[0072] <Harness> The harness 600 is a wiring that transmits a signal from the fixed contact 500 based on the operation of the button 200 to an external circuit (not shown). The harness 600 includes a first plug 610, a second plug 620, and a lead wire 630.

[0073] The first plug 610 is a part that is inserted into the above-mentioned socket portion 340. The second plug is a part that is inserted into an external circuit (not shown). The lead wire 630 is a wire that connects the first plug 610 and the second plug 620.

[0074] <How to assemble the switch> One method of assembling the switch 1 will now be described. Button 200, in which movable contact 251 and the like are assembled to button body 210, is inserted into the upper opening of case 100 while being aligned in the circumferential direction. Then, after arm 240 elastically deforms radially inward, engagement claw 242 engages with through hole 114, and button 200 is assembled to case 100.

[0075] Next, the leg portion 330 and the socket portion 340 of the base 300 are inserted into the insertion groove 430 of the cover 400 from the right side (see arrow A1 in FIG. 11). Then, after the two side walls 420, 420 open (see arrow A2 in FIG. 11), the two engagement claws 345, 345 are housed in the two engagement holes 426, 426, and the base 300 and the cover 400 fit together and are further engaged in the left-right direction.

[0076] Next, the base 300 and cover 400 engaged with each other are inserted from the lower opening of the case 100. Then, the legs 330, 330 of the base 300 elastically deform radially inward, and the engaging claws 332, 332 of the base 300 engage with the protrusions 113, 113 of the case 100 in the axial direction. As a result, the base 300 and cover 400 engage with the case 100 in the axial direction, and are assembled to the case 100.

[0077] <Switch action and effect> The function and effect of the switch 1 will now be described. (1) the engagement portion between the protrusion 113 of the case 100 and the engagement claw 332 of the base 300, and (2) the engagement portion between the engagement portion 334 and the flange portion 344 of the base 300 and the front engagement groove 427 and the rear engagement groove 428 of the cover 400 are hidden from the outside, and therefore cannot be accessed from the outside. As a result, the base 300 and the cover 400 cannot be detached from the case 100 after assembly.

[0078] The base 300 and the cover 400 are restrained in the left-right direction within the case 100, and therefore the base 300 and the cover 400 cannot move relatively away from each other in the left-right direction. As a result, the base 300 and the cover 400 do not come off each other, and the engagement state between the base 300 and the cover 400 in the axial direction is maintained, so that the cover 400 does not come off the base 300.

[0079] <<Variations>> Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment and may be modified, for example, as follows.

[0080] In the above-described embodiment, a configuration was exemplified in which the electronic component assembly is a switch 1 and the electronic component is a button 200. However, for example, the electronic component assembly may be an LED (Light Emitting Diode) lighting device and the electronic component may be an LED.

[0081] In the above embodiment, the engagement configuration between the case 100 and the base 300 is exemplified as a configuration in which the case 100 has the protrusion 113 that does not elastically deform, and the base 300 has the leg 330 and the engagement claw 332 that elastically deform, but the present invention is not limited to this. For example, the case 100 may have an engagement claw that elastically deforms in the radial direction, and the base 300 may have a protrusion that does not elastically deform and engages with the engagement claw.

[0082] In the above embodiment, the engagement configuration between the base 300 and the cover 400 is exemplified as a configuration in which the base 300 has the engagement claws 345 that do not elastically deform, and the cover 400 has the engagement holes 426 that elastically deform, but the present invention is not limited to this. For example, the base 300 may have engagement holes that elastically deform, and the cover 400 may have engagement claws that do not elastically deform.

[0083] In the above-described embodiment, a configuration in which the base 300 and the cover 400 are fitted together by sliding relative to each other in the left-right direction (radial direction) is exemplified. However, other configurations are also possible in which the base 300 and the cover 400 are engaged together by sliding relative to each other in the up-down direction (axial direction).

[0084] In the above-described embodiment, a configuration in which the engagement portion 334 is formed only on the rear side of the leg portion 330 of the base 300 has been exemplified. However, for example, instead of or in addition to this, a configuration in which an engagement portion that engages (fits) with the front engagement groove 427 (see FIG. 8) is provided on the front side of the leg portion 330 may also be used. [Explanation of symbols]

[0085] 1 Switch (electronic component assembly) 100 cases 113 Protrusion 200 Buttons (electronic parts) 300 base 310 base 330 Legs 332 Engagement claw 334 Engagement part 340 Socket part 342 Half 344 Tsuba 345 Engagement Claw 400 Cover 420 Side wall 427 Front engagement groove 428 Rear engagement groove

Claims

1. A cylindrical case and an electronic component disposed on one side of the case; a base disposed on the other side of the electronic component within the case; a cover disposed on the other side of the base within the case; Equipped with In an axial direction, the case and the base are engaged with each other, and the base and the cover are engaged with each other. An engagement portion between the case and the cover and an engagement portion between the base and the cover are hidden from the outside.

1. An electronic component assembly comprising:

2. The base and the cover are fitted together by sliding relative to each other in a radial direction, and are engaged with each other in an axial direction when in a fitted state.

2. The electronics assembly of claim 1.

3. The base and the cover are in contact with and constrained by the case in the radial direction.

3. The electronics assembly of claim 2.

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