JP6303574B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device including a switch and a method for manufacturing the same.

In an electronic device such as a temperature control device used in a production line of a factory, in order to prevent a liquid such as water from entering the space where the switch is placed and causing the switch to break down, the space where the switch is placed is It is formed in a waterproof compartment.
As such a configuration, a waterproof structure is disclosed in which an elastic body is inserted into a through-hole of a case, and the elastic body has a coupling hole recessed inward (for example, Patent Document 1 ( See FIG. 1). In this waterproof structure, a push switch is disposed inside the elastic body, and a rod for transmitting pressure applied by a push key to the push switch is fitted in the coupling hole. The compression reaction force of the elastic body is generated by inserting the rod into the coupling hole, and the elastic body is pressed against the through hole of the case and the rod, so that the space where the push switch is disposed is formed as a waterproof section.

On the other hand, the rod needs to slide against the elastic body when operating the switch, but the reaction force of the elastic body is also applied to the rod. Lubricating oil is applied.
Further, as another configuration, a waterproof member for watertight partitioning is provided so as to surround a space where the button is disposed, and the waterproof member is disposed between the waterproof film disposed opposite to the button and the waterproof film and the housing. The structure which has a frame-shaped elastic body which adhere | attaches (for example, refer patent document 2 (FIG. 6)). In Patent Document 2, a hinge structure is formed by fixing the tip of a portion extending from the button along the inner surface of the housing to the inner surface of the housing, and the button is in a through hole formed in the housing. Is held in. When the button is pressed by the user, the button rotates to the inside of the housing with the fixed portion as a fulcrum.

JP 2013-62243 A JP 2008-108558 A

  However, in the waterproof structure shown in the above-mentioned Patent Document 1, the lubrication oil is depleted and the rod does not slide smoothly depending on the long-term use or the use environment, and the feeling of operation when the switch is pressed is poor. There was a case. Further, since the waterproof section is formed by compression of the elastic body, delicate dimensional design and stress design are required for the case, the elastic body, the rod, and the like, and dimensional management after mass production is also necessary. For this reason, the cost was high.

Further, in the waterproof structure shown in Patent Document 2, since the waterproof member is composed of two members, a waterproof film and a frame-like elastic body, the member cost increases due to an increase in the number of parts, and the two members are bonded. As a result, the number of assembly steps is increased, and the cost is high.
In addition, it is necessary to form a fixing portion that holds the button in the through-hole and serves as a rotation fulcrum of the button, and an extra space is required to form the fixing portion. Furthermore, in order to obtain a good feeling of button operation, it is necessary to secure a longer length of the portion extending along the inner peripheral surface of the housing, and more space is required.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic device having a good feeling of operation when a switch is pressed, and a manufacturing method thereof, in which a space in which a switch is arranged is saved in a space-saving space at a low cost.

  The electronic device according to the first invention includes a case member, a switch, a cup member, and a pressing member. The case member has a through hole on the surface. The switch is disposed on a substrate provided inside the case member. The cup member has a cup portion that is disposed in the through hole with the inner bottom surface facing the outside of the case member. The pressing member is disposed in the cup portion for pressing the switch. The cup member is welded to the case member so that foreign matter does not enter from between the cup portion and the inner peripheral surface of the through hole, and the bottom of the cup portion switches the switch by the movement of the pressing member for pressing the switch. Press.

  With such a configuration, the space in which the switch is disposed is formed as a waterproof section, and foreign matter can be prevented from entering the space. Here, the foreign matter includes liquid such as water, dust and the like. Further, since the waterproof section is formed by welding, the pressing member is not pressed by the cup portion, or even if pressed, the pressing member is not pressed to the extent that it is difficult to slide. Therefore, the pressing member can be smoothly slid relative to the cup portion without applying lubricating oil between the cup portion and the pressing member. Therefore, even when the space in which the switch is disposed is formed as a waterproof section, the operational feeling when the switch is pressed can be improved.

Furthermore, since the waterproof section is formed not by compression but by welding, there is no need for delicate dimensional design and stress design, the need for dimensional management after mass production is reduced, and the cost can be reduced.
Moreover, since the cup part arrange | positioned so that the through-hole of a case member may be block | closed can be implement | achieved by one member, a number of parts can be reduced and cost can be reduced.
Further, since the pressing member is inserted into the cup portion, it is held by the cup portion, and there is no need to form a portion that is fixed to the case or the like.
Therefore, it is possible to realize a waterproof compartment with a small space.

An electronic device according to a second aspect is the electronic device according to the first aspect, wherein the cup member is welded to the case member over the entire circumference.
As described above, the cup member is welded to the case member over the entire circumference, so that foreign matter can be prevented from entering between the cup portion and the inner peripheral surface of the through hole.

An electronic device according to a third aspect is the electronic device according to the first aspect, wherein the cup portion is welded over the inner peripheral surface of the through hole and the entire periphery.
Thereby, the penetration | invasion of liquids, such as water, can be prevented between the internal peripheral surface of a through-hole, and a cup part, and the space where the switch is arrange | positioned can be made into a waterproofing division.
In addition, the space in which the switch is disposed can be a waterproof compartment with a space as small as possible on a plane perpendicular to the through hole.

An electronic device according to a fourth aspect of the present invention is the electronic device according to the first aspect of the present invention, wherein the cup member has a flange portion that is connected over the entire circumference of the opening of the cup portion. The collar portion is welded to the outer surface of the case member.
Thereby, the penetration | invasion of liquids, such as water, can be prevented between the collar part of a cup member and a case member, and the space where the switch is arrange | positioned can be made into a waterproofing division.

In addition, by welding at the buttock, a good operational feeling can be obtained while maintaining waterproofness in an electronic device having a thin thickness in the pressing direction.
Moreover, since the collar part is provided on the outer surface of the case member, the collar part is compressed when the switch is pressed. That is, when the collar is disposed on the inside, a force acts in the direction of peeling the weld when the switch is pressed, but in the above invention, the collar is provided on the side to be compressed. Reliable welding can be performed.

An electronic apparatus according to a fifth aspect is the electronic apparatus according to the first aspect, wherein the case member and the cup member are integrally formed by insert molding.
Thereby, the structure which welded the case member and the cup part is easily realizable.
An electronic device according to a sixth invention is the electronic device according to the first invention, further comprising a surface member and an operation unit. The surface member is disposed outside the case member, and has an outer through hole formed so as to penetrate the case member so as to face the through hole. The operation portion is provided in connection with the outer end of the pressing member, protrudes from the outer through hole to the outside of the surface member, and is operated when the switch is pressed. The operation portion has an abutting portion that is an inner surface of the surface member and can abut on the outer periphery of the outer through hole. In the state where the switch is pressed, the contact portion is spaced inward from the surface member, and in the initial state of the operation portion where the contact portion is in contact with the surface member, the switch is not pressed.

As described above, since the contact portion is in contact with the surface member in the initial state of the operation portion, it is possible to prevent liquid or the like from entering between the surface member and the operation portion.
For this reason, it is possible to prevent liquid such as water from entering between the surface member and the operation unit when the user is not pressing the operation unit.
As a result, a double waterproof structure can be formed between the surface member and the operation portion, and between the case member and the cup portion, and more reliably prevent liquid from entering the space where the switch is disposed. Is possible.

An electronic device according to a seventh invention is the electronic device according to the first invention, wherein an electronic component is further arranged on the substrate, and a switch and an electronic component of the substrate are arranged on the cup member and the case member. It is formed so as to cover the side.
In this way, it is possible to prevent liquids such as water from contacting not only the switch but also other electronic components arranged on the substrate.

  An electronic device according to an eighth aspect is the electronic device according to the first aspect, wherein the cup member has a plurality of connected cup portions. A plurality of through holes are formed side by side in the case member. A plurality of switches are arranged side by side on the substrate. The plurality of cup portions are arranged so as to correspond to the switches. The plurality of connected cup portions and the case-like member are formed so as to cover the side of the substrate on which the plurality of switches are arranged.

As described above, by disposing the plurality of cup portions connected to the side where the plurality of switches are disposed, the waterproof function can be exhibited even for the plurality of switches.
Further, since the cup portions are connected, it is easy to assemble, and a plurality of cup portions capable of exhibiting a waterproof function with respect to a plurality of switches can be integrally formed, so that the cost can be facilitated.

An electronic device according to a ninth aspect of the present invention is the electronic device according to the sixth aspect of the present invention, further comprising a return force generation unit that generates a return force for returning the operation unit from the state where the switch is pressed to the initial state. ing.
By providing the return force generation unit in this way, the operation unit can be more reliably returned to the initial position when the user releases the fingertip from the operation unit. That is, the abutting portion abuts on the surface member more reliably. Thereby, the penetration | invasion of the liquid from the clearance gap between a surface member and an operation part can be prevented as much as possible.

An electronic device according to a tenth invention is the electronic device according to the ninth invention, wherein the cup member has a flange formed from an edge of the opening of the cup portion, and the flange is outside the case member. It is welded to the surface. The return force generating portion has elasticity and is formed so as to protrude from the flange portion toward the surface member. The tip of the returning force generating portion contacts the inside of the contact portion, and the contact portion faces the inner surface of the surface member. Energize.
In this way, by forming the return force generation part so as to protrude from the collar part toward the surface member, the return force generation part can be integrally formed with the collar part, so that it can be used without increasing the number of parts. When the person releases his / her finger, a configuration for returning the operation unit to the initial position can be realized.

  An electronic apparatus according to an eleventh aspect includes a molding step and an arrangement step. In the molding step, a case member having a through hole on the surface and a cup member having a cup portion with the inner bottom face facing the outside of the case member are integrally formed in the through hole by insert molding. The placing step includes the case member and the cup so that the bottom of the cup portion presses the switch by the movement of the push member inserted into the cup portion to push the switch on which the switch is placed inside the case member. Arrange for the member.

  The space where the switch is arranged can be saved in a space-saving and low-cost space, and an electronic device with a good operational feeling when the switch is pressed can be manufactured.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the electronic device with the favorable feeling of operation at the time of pressing down a switch, and the manufacturing method thereof, making the space where the switch is arrange | positioned at low cost into a waterproofing division.

The whole perspective view which shows the temperature regulator in Embodiment 1 which concerns on this invention. The side view which shows the use condition of the temperature controller shown in FIG. The disassembled perspective view of the seat front which is the front part of the temperature controller shown in FIG. 1, a case front, a display part, and a switch part. (A) Front view showing a state in which the seat front, case front, display unit, and switch unit shown in FIG. 3 are combined, (b) a cross-sectional view taken along the line AA in FIG. 4 (a), and (c) FIG. The arrow directional cross-sectional view between BB of (a). 3A is a front view of the case front shown in FIG. 3, FIG. 5B is an arrow cross-sectional view taken along CC in FIG. 5A, and FIG. 5C is an arrow cross-sectional view taken along DD in FIG. FIG. 4 is a schematic cross-sectional view of the switch shown in FIG. 3. (A) The perspective view seen from the front side of the cup member shown in FIG. 3, (b) The perspective view seen from the back side of the cup member shown in FIG. (A) A plan view of the cup member shown in FIG. 7, (b) a front view of the cup member shown in FIG. 7, (c) a cross-sectional view taken along the line EE in FIG. 8 (b), and (d) FIG. 8 (b). ) Is a cross-sectional view taken along the line FF, (e) a partially enlarged view of FIG. The elements on larger scale of FIG.4 (b). Sectional drawing for demonstrating the welding part of the case front and cup member of the temperature controller shown in FIG. (A) Partial enlarged view of the cup member viewed from the front side for explaining the bonding portion between the case front of the temperature controller and the cup member shown in FIG. 1, and (b) the case front of the temperature controller shown in FIG. The elements on larger scale of the cup member seen from the back side for demonstrating the welding part of a cup member. (A) The perspective view seen from the front side of the operation key shown in FIG. 3, (b) The perspective view seen from the back side of the operation key shown in FIG. FIG. 10 is a plan sectional view showing a state where an operation key is pushed in from the state shown in FIG. 9. FIG. 14 is a side sectional view of the state shown in FIG. 13. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. Sectional drawing of the switch vicinity which shows the modification of the temperature controller of this Embodiment 1. FIG. (A) The perspective view seen from the front side of the cup member which shows the modification of the temperature regulator of this Embodiment 1, (b) Seen from the back side of the cup member which shows the modification of the temperature regulator of this Embodiment 1. Perspective view. (A) A perspective sectional view showing a part of a front case and a cup member of a temperature controller in Embodiment 2 according to the present invention; (b) a part of a front case of a temperature controller in Embodiment 2 according to the present invention; The cross-sectional view which shows a cup member, (c) The front view which shows a part of front case and cup member of the temperature controller in Embodiment 2 which concerns on this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate. In the following description, for example, in order to avoid the description from being unnecessarily redundant and to facilitate understanding by those skilled in the art, for example, a detailed description of known matters and a redundant description of substantially the same configuration are omitted. There is a case.
The applicant provides the following description and drawings in order for those skilled in the art to fully understand the contents of the present invention, and these disclosures limit the subject matter described in the claims. Not intended.

(Embodiment 1)
Below, the temperature controller of Embodiment 1 which concerns on this invention is demonstrated, referring FIGS. 1-14.
<1. Configuration>
(1-1. Outline Configuration of Temperature Controller 1)
FIG. 1 is an external perspective view of the temperature controller 1 of the present embodiment. Although not shown, the temperature controller 1 of the first embodiment is connected to a temperature sensor that detects the temperature, a heater, a cooler, and the like for adjusting the temperature. Further, the temperature controller 1 of the present embodiment has a substantially rectangular parallelepiped shape, and is provided with a front surface 10, a rear surface 11, an upper surface 12, a bottom surface 13, a right side surface 14, and a left side surface 15. As an appearance of the temperature controller 1, the distance from the front surface 10 to the back surface 11 is longer than the distance between the upper surface 12 and the bottom surface 13 and the distance between the right side surface 14 and the left side surface 15. In the following description, the up and down direction is a direction perpendicular to the top surface 12 and the bottom surface 13, and the left and right direction is a direction perpendicular to the left side surface 15 and the right side surface 14. Further, the front side or the front side is the front surface 10 side, and the rear side is the back surface 11 side.

As shown in FIG. 1, a plurality of operation keys 53 of the switch unit 5 are arranged in a line along the lower side 10 a in the lower part of the front surface 10.
FIG. 2 is a side view showing a usage state of the temperature controller 1 according to the first embodiment. The temperature controller 1 of the first embodiment is used by being incorporated in the control panel 100. When the temperature controller 1 is incorporated in the control panel 100, the front surface 10 is exposed to the outside of the control panel 100. The front surface 10 displays the temperature detected by the temperature sensor, the set temperature, and the like. This display area is shown as 10s on the front face 10 in FIG.

Further, the back surface 11, the top surface 12, the bottom surface 13, the right side surface 14 and the left side surface 15 of the temperature controller 1 are disposed inside the control panel 100. Thus, since the part except the front surface 10 is arrange | positioned in the control panel 100, in the temperature regulator 1 of this Embodiment 1, the waterproof function is given to the front surface 10 side.
FIG. 3 is an exploded perspective view of the temperature controller 1 according to the first embodiment on the front surface 10 side. FIG. 4A is a front view showing a state in which the display unit 2, the case front 3, the seat front 4, and the switch unit 5 are combined. FIG. 4B is a cross-sectional view taken along the line AA in FIG. FIG. 4C is a cross-sectional view taken along the line BB in FIG.

  As shown in FIGS. 3 and 4, the display unit 2, the case front 3, the seat front 4, and the switch unit 5 are provided on the front surface 10 side of the temperature controller 1. The display unit 2, the case front 3, the seat front 4, and the switch unit 5 are attached to a case main body 16 (see FIG. 1) constituted by a back surface 11, an upper surface 12, a bottom surface 13, a right side surface 14, and a left side surface 15. It is done.

(1-2. Display unit 2)
As shown in FIG. 3, the display unit 2 includes a substrate 21 and display electronic components 22. The board | substrate 21 is substantially square shape, is formed in the substantially same magnitude | size as the front surface 10, and is arrange | positioned so that the surface may face the front surface 10 side. The display electronic component 22 is disposed on the front surface 10 side of the substrate 21 and closer to the upper end. A switch 51 and other electronic components 23 to be described later are arranged below the display electronic component 22 on the substrate 21.

(1-3. Case front 3)
FIG. 5A is a front view of the case front 3. 5 (b) is a cross-sectional view taken along the CC line in FIG. 5 (a), and FIG. 5 (c) is a cross-sectional view taken along the DD line in FIG. 5 (a).
As shown in FIGS. 3 and 5, the case front 3 includes a front surface portion 31, a left support portion 32a, a right support portion 32b, an upper support portion 32c, and a lower support portion 32d. The front portion 31 has a substantially rectangular shape, and each side of the substantially rectangular shape forms an upper end 31U, a lower end 31D, a left end 31L, and a right end 31R. The front surface portion 31 is disposed so as to cover the display portion 2 from the front surface 10 side, and has a substantially rectangular opening 34 formed at a position facing the display electronic component 22 (FIGS. 3 and 5). (See (a)). Each substantially rectangular side of the opening 34 is parallel to each side of the front surface portion 31 corresponding to each side.

The left support part 32a is composed of a plurality of protruding members formed from the left end 31L of the front face part 31 toward the back face 11, and engages with the left side face 15 (not shown). The right support portion 32b is composed of a plurality of protruding members formed from the right end 31R of the front surface portion 31 toward the back surface 11, and engages with the right side surface 14 although not shown. Similarly, the upper support portion 32 c is composed of a plurality of protruding members formed from the upper end 31 U of the front surface portion 31 toward the back surface 11, and engages with the upper surface 12. The lower support portion 32 d is composed of a plurality of protruding members formed from the lower end 31 D of the front surface portion 31 toward the back surface 11, and engages with the bottom surface 13.
The case front 3 is formed by the back surface 11, the top surface 12, the bottom surface 13, the right side surface 14, and the left side surface 15 by the left side support portion 32a, the right side support portion 32b, the upper side support portion 32c, and the lower side support portion 32d. Attached to the case body 16 (see FIG. 1).

As shown in FIGS. 5A to 5C, an arrangement portion 35 in which a cup member 52 described later is arranged is formed on the front surface portion 31 below the opening portion 34. In FIG. 3, a state in which the cup member 52 is arranged in the arrangement portion 35 is shown.
The disposing portion 35 includes a groove-shaped portion 38 formed in a groove shape on the surface of the front surface portion 31, a groove-shaped portion 36 formed in a groove shape on the bottom surface 38 a of the groove-shaped portion 38, and a bottom surface of the groove-shaped portion 36. And five through holes 37 formed from 36a. The groove-shaped portion 38 is formed below the opening 34 and along the lower end 31D of the front surface portion 31 from the left end 31L to the right end 31R. The groove-shaped portion 36 is formed on the bottom surface 38a of the groove-shaped portion 38 so as to be disposed inside the groove-shaped portion 38 in a front view as shown in FIG. The five through holes 37 are formed in a line in the direction from the left end 31L to the right end 31R at a predetermined interval on the bottom surface 36a of the groove-like portion 36. These five through holes 37 are formed at positions facing each of the five switches 51 described above. The bottom surfaces 36a and 38a referred to here are groove-shaped bottom surfaces and are formed substantially parallel to the front surface 10.

  5C, the upper end 36U and the lower end 36D of the groove-like portion 36 coincide with the upper end 37U and the lower end 37D of the through hole 37 at the vertical position. For this reason, as shown in FIG. 5A, the bottom surface 36a of the groove-shaped portion 36 exists in the left-right direction of the through hole 37, but does not exist in the vertical direction of the through hole.

(1-4. Seat front 4)
The seat front 4 is a substantially rectangular member as shown in FIG. 3, and has an upper end 4U, a lower end 4D, a left end 4L, and a right end 4R that form each side. The seat front 4 is formed of a transparent member, and is fixed to the front side of the case front 3 by adhesion. The seat front 4 is attached to the front surface portion 31 so that the upper end 4U, the lower end 4D, the left end 4L, and the right end 4R correspond to the upper end 31U, the lower end 31D, the left end 31L, and the right end 31R.
A notch 4a is formed at the center of the upper end 4U of the seat front 4, and a notch 4b is formed at the center of the lower end 4D. When the seat front 4 is bonded and fixed to the case front 3, the notch 4a is fitted with a protrusion 31a formed at the center of the upper end 31U of the front surface 31 of the case front 3, so that the notch 4b. The convex part 31b formed in the center part of lower end 31D of the front-surface part 31 is fitted by this.

  The seat front 4 has a function of supporting a plurality of operation keys 53 (described later) on the case front 3. The seat front 4 has a plurality of through holes through which the plurality of operation keys 53 protrude to the front side. 41 is formed. The plurality of through holes 41 are formed at predetermined intervals in a line from the left end 4L to the right end 4R.

(1-5. Switch unit 5)
The switch unit 5 includes a plurality of switches 51, a cup member 52, and a plurality of operation keys 53.
(1-5-1. Switch 51)
Five switches 51 are arranged in a line in the left-right direction (from the left side 15 to the right side 14 in a substantially vertical direction) below the display electronic component 22 on the front surface 10 side of the substrate 21. When these switches 51 are pressed from the front surface 10 side, the switches are turned on.
FIG. 6 is a schematic diagram in the vicinity of the switch 51. As illustrated in FIG. 6, the switch 51 includes a lid 511, a movable electrode 512 disposed on the back surface of the lid 511, and a fixed electrode 513 disposed on the substrate 21 side. When a pressing member 503, which will be described later, is pushed toward the back surface 11 side by pressing the operation key 53 by the user (see arrow P), the lid portion 511 is bent toward the back surface 11 side, and the movable electrode 512 contacts the fixed electrode 513. The switch 51 is turned on. When the pressing of the movable electrode 512 via the lid portion 511 is released, the movable electrode 512 is separated from the fixed electrode 513 by the restoring force of the lid portion 511, and the switch 51 is turned off.

(1-5-2. Cup member 52)
(1-5-2-1. Configuration of Cup Member 52)
FIG. 7A is a perspective view of the cup member 52 viewed from the front surface 10 side. FIG. 7B is a perspective view of the cup member 52 viewed from the back surface 11 side. FIG. 8A is a plan view of the cup member 52, and FIG. 8B is a front view of the cup member 52. FIG. 8C is an arrow cross-sectional view taken along the line EE in FIG. 8B, and FIG. 8D is a cross-sectional view taken along the line FF in FIG. 8B. FIG.8 (e) is the elements on larger scale of FIG.8 (c). FIG. 9 is a partially enlarged view of FIG.

  The cup member 52 is formed of an elastic material including rubber or the like. The cup member 52 is disposed on the front surface portion 31 of the case member 3, and five waterproof partition forming portions are provided to prevent water from entering from each of the five through holes 37 formed in the front surface portion 31 of the case member 3. 54. As shown in FIGS. 7 and 8, the cup member 52 is formed by five connected waterproof partition forming portions 54. Here, the waterproof partition forming unit 54 prevents entry of foreign substances including not only water but also liquid and dust.

Each waterproof partition forming portion 54 includes a cup portion 56 disposed in a through hole 37 formed in the front surface portion 31 of the case member 3 and a flange portion 55 formed from the front end of the cup portion 56. ing.
As shown in FIG. 9, the cup portion 56 is disposed so as to be inserted into the through hole 37 so that the opening 56 d faces the front surface 10 side and the inner bottom surface 56 e faces the outside. The flange portion 55 is formed from the front end of the cup portion 56 (the edge 56f of the opening 56d (see FIG. 8E)) toward the left and right. As shown in FIG. 9, the flange portion 55 is disposed in the groove portion 36 of the front surface portion 31.

  As shown in FIGS. 7 and 8, the waterproof partition forming portion 54 is provided with a concave portion 54 c on the front surface 54 s along the left and right directions in which the flange portion 55 is formed. An insertion hole 57 is formed from the bottom surface 54 d of the recess 54 c to the inside of the cup portion 56. A pressing member 503 (described later) of the operation key 53 is inserted into the insertion hole 57. The entrance of the insertion hole 57 corresponds to the opening 56d.

Further, on both the left and right sides of the through-hole 37, urging protrusions 58 that protrude from the bottom surface 54d of the recess 54c toward the front surface 10 side (the side opposite to the protruding direction of the cup portion 56) are formed. These urging projections 58 urge the operation key 53 toward the seat front 4.
The cup member 52 is formed by connecting the ends of the flange portions 55 of the cup portion 56 configured as described above.

(1-5-2-1. Welding between cup member 52 and case front 3)
The case front 3 and the cup member 52 described above are integrally formed by insert molding. That is, the case front 3 and the cup member 52 are joined by welding.
FIG. 10 is a view showing only the case front 3 and the cup member 52 in the cross-sectional view of FIG. As shown in FIG. 10, the cup portion 56 of the waterproof partition forming portion 54 is opposed to the inner peripheral surface 37 a of the through hole 37, and welded to the inner peripheral surface 37 a and the entire periphery thereof. A protruding portion 56b protruding from the portion 56a toward the inside of the case front 3 is provided. FIG. 11A is a perspective view of one waterproof partition forming portion 54 of the cup member 52 as viewed from the front side, and FIG. 11B shows one waterproof partition forming portion 54 of the cup member 52 on the back side. It is the perspective view seen from. In order to facilitate understanding of the welded portion 56a and the protruding portion 56b, the region of the welded portion 56a is indicated by a dotted line in FIGS. 11 (a) and 11 (b).

  Thus, since the welding part 56a is provided over the perimeter of the waterproof partition formation part 54, it can prevent that water permeates into the inside from the outer side of the case front 3. FIG. That is, a waterproof compartment can be formed inside the case front 3 (the side where the switch 51 is disposed). The welded portion on the inner periphery of the welded portion 56a and the through hole 37 is indicated by a dotted line as S1 in FIG.

  The flange portion 55 of the cup member 52 is disposed on the bottom surface 36a of the groove-shaped portion 36, and the back surface 55a and the bottom surface 36a of the flange portion 55 are welded to each other. A welded portion between the flange 55 and the bottom surface 36a is indicated by a dotted line as S2 in FIG. As described in the description of the case front 3, the bottom surface 36a of the groove portion 36 does not exist in the vertical direction of the through hole 37. Further, as shown in FIGS. 11A and 11B, the flange portion 55 is formed only in the left-right direction from the cup portion 56. With these configurations, the outer peripheral edge of the case front 3 and the cup member 52 outside the through hole 37 is not bonded over the entire circumference.

In addition, by configuring the case front 3 so that the bottom surface 36a does not exist in the vertical direction as described above, the size of the front surface 10 is made as small as possible, and a large display area 10s (see FIG. 1) is secured. I can do it. Moreover, in this embodiment, the inner side surface (upper and lower left and right surfaces) of the groove-like portion 36 is also welded to the flange portion 55 for insert molding.
(1-5-3. Operation key 53)
FIG. 12A is a perspective view of the operation key 53 viewed from the front side in FIG. FIG. 12B is a perspective view of the operation key 53 viewed from the back surface 11 side.

The operation key 53 includes an operation unit 501, a contact unit 502, and a pressing member 503.
As shown in FIGS. 12A and 12B, the operation unit 501 has a substantially rectangular parallelepiped shape, and is arranged to project forward from the seat front 4, and is used to turn on the switch 51. It is pushed toward the back surface 11 by a person.
The contact portion 502 is an end of the operation portion 501 on the back surface 11 side and is formed over the entire circumference of the operation portion 501. As shown in FIG. 9, the abutting portion 502 is disposed between the seat front 4 and the cup member 52, and the urging protrusion 58 of the cup member 52 abuts on the inner side surface 502a thereof, so that the seat front 4 side It is energized. Due to the urging force of the urging protrusion 58, the abutting portion 502 abuts the inner peripheral edge 42 of the through hole 41 of the seat front 4 over the entire circumference.

  The pressing member 503 is a rod-shaped member formed to protrude from the back surface 11 side of the operation unit 501 toward the back surface 11, and is inserted into the insertion hole 57 of the cup member 52. That is, as illustrated in FIG. 12B, the operation unit 501 is disposed at the outer end 503 a of the pressing member 503.

<2. Operation>
When the switch 51 is turned on, the operation unit 501 of the operation key 53 is pushed toward the back surface 11.
FIG. 13 is a front sectional view in the vicinity of the waterproof partition forming portion 54 with the switch 51 turned on, and is a sectional view taken along the line AA shown in FIG. FIG. 14 is a side sectional view in the vicinity of the waterproof partition forming portion 54 in which the switch 51 is turned on, and is a sectional view taken along the line BB shown in FIG.
As shown in FIGS. 9, 13, and 14, when the user presses the operation key 53, the pressing member 503 is also moved toward the back surface 11, and the cup portion 56 of the cup member 52 is extended inward. Then, the lid 511 of the switch 51 is pressed by the pressing member 503 through the tip 56c of the protrusion 56b. When the lid portion 511 is pressed, the movable electrode 512 provided on the back surface of the lid portion 511 comes into contact with the fixed electrode 513, and the switch 51 is turned on.

The cup portion 56 is elastically deformed with the movement of the pressing member 503. Since the welded portion 56a of the cup portion 56 is welded to the inner peripheral surface 37a of the through hole 37, the protruding portion is mainly used. 56b elastically deforms inward.
Further, as the operation key 53 is pushed in, the contact portion 502 comes into contact with the bottom surface 38a of the groove-like portion 38 as shown in FIG. 14, and the pushing of the operation key 53 is stopped. This prevents the operation key 53 from being pushed too much and the switch 51 from being pushed too much.

  Further, as shown in FIGS. 9 and 13, when the operation key 53 is pressed, the urging protrusion 58 is compressed by the contact portion 502. A distance d1 is provided from the biasing projection 58 to the wall surface 54e on the bottom surface 54d of the recess 54c so that the compressive deformation of the biasing projection 58 is not hindered by the wall surface 54e of the recess 54c (see FIG. 11). That is, the distance d1 is set so that the biasing protrusion 58 does not contact the wall surface 54e in a state where the contact portion 502 is in contact with the bottom surface 38a. The wall surface 54e can be said to be the wall surface 54e opposite to the insertion hole 57 of the urging protrusion 58 in detail.

  When the user releases his / her finger from the operation key 53, the abutting portion 502 is urged toward the seat front 4 by the urging protrusion 58. Due to the biasing force of the contact portion 502, the restoring force of the lid portion 511 of the switch 51, and the elastic force of the protruding portion 56b trying to return to the original state, the operation key 53 is in a state before being pushed, that is, the operation key 53 The state returns to a state (initial state) where the contact portion 502 of the key 53 is in contact with the inner peripheral edge portion 42 of the through hole 41 of the seat front 4.

<3. Main features / effects>
(3-1)
As shown in FIG. 9, the temperature controller (an example of an electronic device) of the present embodiment includes a case front 3 (an example of a case member), a switch 51 (an example of a switch), a cup member 52, and a pressing member 503. It has. The case front 3 has a through hole 37 on the surface. The switch 51 is disposed on the substrate 21 provided inside the case front 3. The cup member 52 has a cup portion 56 in which the inner bottom surface 56 e faces the outside of the case front 3 in the through hole 37. The pressing member 503 is disposed in the cup portion 54 in order to press the switch 51. The cup member 52 is welded to the case member 3 so that foreign matter does not enter from between the cup portion 56 and the inner peripheral surface 37 a of the through hole 37. In particular, in the present embodiment, the cup portion 56 and the inner peripheral surface 37a of the through hole 37 are welded over the entire circumference. By the movement of the pressing member 503 for pressing the switch, the front end portion 56c (an example of the bottom portion) of the cup portion 54 presses the switch 51.

As described above, the space Q (see FIG. 9) in which the switch 51 is arranged by welding the entire circumference of the cup portion 56 and the inner circumferential surface 37a of the through hole 37 of the case front 3 as the waterproof compartment. It is formed.
Further, since the waterproof section is formed not by compression but by welding, the pressing member 503 is not pressed by the cup portion 56, or even if pressed, the pressing member 503 is not pressed to the extent that it is difficult to slide. Therefore, the pressing member 503 can slide smoothly with respect to the cup portion 56 without applying lubricating oil between the cup portion 56 and the pressing member 503. Therefore, even when the space Q in which the switch 51 is disposed is formed as a waterproof section, the operational feeling when pressing the switch electronic component can be improved.

Furthermore, since the waterproof section is formed not by compression but by welding, there is no need for delicate dimensional design and stress design, the need for dimensional management after mass production is reduced, and the cost can be reduced.
Further, since the cup member 52 arranged so as to close the through hole 37 of the case front 3 can be realized by one member, the number of parts can be reduced and the cost can be reduced.

(3-2)
The manufacturing method of the temperature controller (an example of an electronic device) of this embodiment includes a molding process and an arrangement process. In the molding process, as shown in FIGS. 3 and 4, the case front 3 (an example of a case member) having a through-hole 37 on the surface and the inner bottom surface 56 e are arranged in the through-hole 37 so as to face the outside of the case front 3. The cup member 52 having the cup portion 56 is integrally formed by insert molding. In the arranging step, the board 21 on which the switch 51 is arranged inside the case front 3 as shown in FIGS. 9 and 13 moves the cup 51 by pressing the switch 51 of the pressing member 503 inserted into the cup portion 56. The front end portion 56 c (an example of the bottom portion) of the portion 56 is disposed with respect to the case front 3 and the cup member 52 so as to press the switch 51.

<4. Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above embodiment, as shown in FIG. 9, the inner surface 31 c of the front surface portion 31 is formed substantially perpendicular to the penetration direction of the through hole 37, but may not be formed substantially perpendicular.

  A concave portion 31z ′ may be formed on the periphery of the through hole 37 of the inner surface 31c ′ as in the front surface portion 31 ′ shown in FIG. By forming the recess 31z ′, the thickness of the front surface portion 31 is reduced toward the through hole 37. In this case, the through hole 37 is a portion welded to the cup portion 56, and the portion located inside the recess 31 z ′ is not welded to the case front 3. It is a part.

(B)
In the above embodiment, the recessed portion 54c is provided in the waterproof partition forming portion 54 and the urging protrusion 58 is formed from the bottom surface 54d thereof, but the recessed portion 54c may not be formed. For example, unlike the waterproof partition forming portion 1054 shown in the cross-sectional view of FIG. 16, the recessed portion 54c is not formed in the waterproof partition forming portion 1054, and the biasing protrusion 58 is formed directly from the front surface 54s of the waterproof partition forming portion 1054. It may be.

(C)
In the above embodiment, the urging protrusion 58 as an example of the return force generating unit is formed as a part of the waterproof partition forming unit 54, but the configuration as an example of the return force generating unit is the waterproof partition forming unit 54. May be provided as a separate member, or may be provided as a part of the case front 3 or the operation key 53. 17 to 21 are schematic diagrams illustrating other examples of the urging force generation unit.

  As shown in FIG. 17, a winding spring 601 may be provided on the pressing member 503 between the waterproof partition forming unit 2054 and the operation unit 501 as an example of an urging force generating unit. Unlike the waterproof partition forming portion 1054, the waterproof partition forming portion 2054 is not provided with the urging protrusion 58. When the winding spring 601 is in a compressed state, the one end side contacts the front surface 54s of the waterproof partition forming portion 2054, and the other end side contacts the back surface 501s of the operation portion 501, so that the operation key 53 is arranged. Is urged in the direction of the seat front 4.

  Further, a resin spring may be provided on the operation key 53 as an example of the restoring force generation unit. The operation key 1053 having such a configuration is shown in FIG. The operation key 1053 shown in FIG. 18 is formed with a resin spring 602 as an example of a restoring force generation unit from the back surface 501s of the operation unit 501 downward. An end on the back side of the resin spring 602 contacts the front surface 54s of the waterproof partition forming portion 2054, and the operation key 1053 is biased toward the seat front 4 side.

  On the other hand, instead of the resin spring 602, a resin spring may be formed from the front surface 54s of the waterproof partition forming portion 2054 toward the front surface side. The waterproof partition forming portion 3054 having such a configuration is shown in FIG. The waterproof partition forming unit 3054 has a resin spring 603 formed from the front surface 54s toward the operation unit 501. The front end of the resin spring 603 is in contact with the back surface 501s of the operation unit 501, and the operation key 53 is urged toward the seat front 4 side.

Further, instead of the contact portion 502, the operation portion 501 may be provided with an elastic locking portion that has elasticity and is locked to the seat front 4. The operation key 2053 having such a configuration is shown in FIG. An operation key 2053 shown in FIG. 20 is provided with an elastic locking portion 604 as an example of a restoring force generating portion instead of the contact portion 502 of the operation portion 501. The elastic locking portion 604 is locked to the back surface 4 s of the seat front 4. The elastic locking portion 604 extends to the back side as the operation key 53 is pushed, but tries to return to the original state by the elastic force. As a result, the operation key 53 is urged toward the seat front 4 side.
In addition, as shown in FIG. 21, the pressing member 503 may be provided with a leaf spring 605 as an example of a restoring force generation unit. The leaf spring 605 is formed in a convex shape on the back side, and this convex portion is in contact with the front surface 54s. With such a configuration, the operation key 53 is urged toward the seat front 4 side.

(D)
Moreover, in the said embodiment, although the collar part 55 was formed only in the left-right direction of the cup part 56, it may be formed also in the up-down direction. The cup member 1052 having such a configuration is shown in FIGS. 22 (a) and 22 (b). The cup member 1052 shown in FIGS. 22A and 22B is provided with a waterproof partition forming portion 4054 having a flange portion 1055 formed over the entire circumference of the front end (opening 56d) of the cup portion 56. It has been.
In this case, not only the welded portion 56a but also the back surface 1055a of the flange portion 1055 is welded to the case front 3 over the entire circumference of the waterproof partition forming portion 4054. 5 needs to be formed also in the vertical direction of the through hole 37.

(E)
In the embodiment described above, the temperature controller is used as an example of the electronic device. However, the temperature controller is not limited to the temperature controller, and the configuration of the present embodiment is applicable to any electronic device having a switch. .

(F)
Moreover, in the said embodiment, although the several waterproof division formation part 54 was connected, the waterproof division formation part 54 may be arrange | positioned alone. That is, the cup member 52 may have only one waterproof partition forming portion 54.
(G)
In the above embodiment, the switch 51 having the movable electrode 512 and the fixed electrode 513 is used as an example of the switch. However, the switch 51 is not limited to such a switch, and the circuit is opened and closed by being pressed. It may be a pressure sensitive switch that is turned on. In short, all that is required is a switch that is turned on when pressed.

(H)
Moreover, in the said embodiment, although the several waterproof division formation part 54 is formed at a stretch by insert molding, it is not necessary to form all of the some waterproof division formation parts 54 at a stretch, and it forms in multiple times. May be. For example, two of the five waterproof partition forming portions 54 may be formed simultaneously, and then the remaining three may be formed simultaneously.

(Embodiment 2)
Below, the temperature regulator in Embodiment 2 which concerns on this invention is demonstrated below. The basic configuration of the temperature controller of the second embodiment is the same as that of the first embodiment, but the temperature controller of the second embodiment is different in the welded portions of the case front and the cup portion. Therefore, this difference will be mainly described. In addition, the same code | symbol is provided about the structure similar to Embodiment 1. FIG.

<1. Configuration>
FIG. 23A is a perspective sectional view showing the front surface portion 1031 and the cup member 5052 of the case front 1003 of the present embodiment. FIG. 23B is a front sectional view of the front surface portion 1031 and the cup member 5052 of the case front 1003 of the present embodiment. FIG. 23C is a plan view of the front surface portion 1031 and the cup member 5052 of the case front 1003 of this embodiment.

  The cup member 5052 of this embodiment does not have a plurality of connected waterproof compartment forming portions 5054 but has only one waterproof compartment forming portion 5054. Such a waterproof partition forming portion 5054 is disposed on the case front 1003 as a single unit, and has a cup portion 56 and a flange portion 5055. As shown in FIG. 23C, the flange portion 5055 is formed over the entire circumference from the entire circumference of the edge 56f of the opening 56d of the cup section 56 toward the outside. In FIG. 23, only a part of the outer surface 1031 s of the case front 1003 is shown, and the outer surface 1031 s may be a bottom surface of a groove-like portion formed on the front surface portion 1031 of the case front 1003.

In the present embodiment, as shown in FIGS. 23A to 23C, a gap T is formed between the inner peripheral surface 37 a of the through hole 37 of the front surface portion 1031 and the cup portion 56 of the waterproof partition forming portion 5054. It is formed and not welded in the meantime.
A flange portion 5055 formed over the entire circumference of the edge 56f of the opening 56d of the cup portion 56 and an outer surface 1031s of the front surface portion 1031 are welded.

Thus, in the present embodiment, the waterproof partition forming portion 5054 is welded to the outer surface 1031s without being welded to the inner peripheral surface 37a of the through hole 37.
In order to realize such a welding configuration by insert molding, the case front 1003 is formed of a resin having high hardness. Then, the formed case front 1003 is inserted into the insert mold, and the mold pins are arranged so as to cover the inner peripheral surface of the through hole 37 of the case front 1003.
By injecting rubber in this state, the structure of the case front 1003 and the waterproof partition forming portion 5054 of this embodiment is welded (the inner peripheral surface 37a of the through hole 37 and the cup portion 56 are not welded, and the flange portion 5055 A configuration in which the case front 1003 is welded can be formed.

<2. Main features / effects>
The temperature controller (an example of an electronic device) according to the present embodiment includes a case front 3 (an example of a case member), a switch 51 (an example of a switch), a cup member 5052, and a pressing member 503. The case front 1003 has a through hole 37 on the surface. The switch 51 is disposed on the substrate 21 provided inside the case front 1003. The cup member 5052 includes a cup portion 56 in which the inner bottom surface 56 e is disposed in the through hole 37 with the inner bottom surface 56 e facing the outside of the case front 1003, and a flange portion 5055 formed over the entire circumference of the opening 56 d of the cup portion 56. Have. The pressing member 503 is disposed in the cup portion 56 in order to press the switch 51. The cup member 5052 is welded to the case member 3 so that foreign matter does not enter from between the cup portion 56 and the inner peripheral surface 37a of the through hole 37. In particular, in this embodiment, the flange portion 5055 and the case front 3 are welded. The outer surface 1031s is welded. By the movement of the pressing member 503 for pressing the switch, the tip 56c (an example of the bottom) of the cup 56 presses the switch 51.

As described above, the space Q (see FIG. 9) in which the switch 51 is arranged is formed by welding the entire periphery of the waterproof partition forming portion 5054 and the outer surface 1031s of the front surface portion 1031 of the case front 1003 over the entire periphery. Formed as.
In addition, by welding with the flange portion 5055, it is possible to obtain a good operational feeling while maintaining waterproofness in an electronic device having a thin thickness in the pressing direction.

  In addition, since the flange portion 5055 is provided on the outer surface 1031s of the case front 1003, the flange portion is compressed when the switch 51 is pressed. That is, when the collar is arranged on the inner side, a force acts in the direction of peeling off the adhesive when the switch is pressed, but in this embodiment, the collar 5055 is provided on the side to be compressed. Therefore, reliable welding can be performed.

<3. Other embodiments>
Also in the second embodiment, the configuration described in the <other embodiment> of the first embodiment can be applied.
In the second embodiment, the waterproof partition forming portion 5054 is provided as a single unit, but a plurality of the waterproof partition forming portions 5054 may be provided in a connected manner as in the first embodiment.

  The electronic device of the present invention and the manufacturing method thereof have a space-saving and low-cost space in which the switch is disposed as a waterproof compartment, and have a good operational feeling when the switch is pressed, such as a temperature controller. Is available.

1 Temperature controller (an example of electronic equipment)
2 Display part 3 Case front (an example of a case member)
4 Seat front (example of surface member)
4D Lower end 4L Left end 4U Upper end 4R Right end 4a Notch portion 4b Notch portion 4s Notch portion 4s Back surface 5 Switch portion 10 Front surface 10s Display area 11 Back surface 12 Top surface 13 Bottom surface 14 Right side surface 15 Left side surface 16 Case body 21 Substrate 22 Display electronic component 23 Electronic Parts 31 Front part 31R Right end 31D Lower end 31L Left end 31U Upper end 31a Convex part 31b Convex part 31c Inner surface 32a Left support part 32b Right support part 32c Upper support part 32d Lower support part 34 Opening part 35 Arrangement part 36 Groove part 36D Lower end 36U upper end 36a bottom surface 37 through-hole 37D lower end 37U upper end 37a inner peripheral surface 38 groove-like portion 38a bottom surface (an example of the surface of the case member, an example of the outer surface of the case member)
41 Through hole (example of outer through hole)
42 Inner peripheral edge portion 51 Switch 52 Cup member 53 Operation key 54 Waterproof partition forming portion 54c Recessed portion 54d Bottom surface 54e Wall surface 54s Front surface 55 Gutter portion 56 Cup portion 56a Welding portion 56b Protruding portion 56c Tip portion (an example of bottom portion)
56d opening 56e inner bottom surface 56f edge 57 insertion hole 58 urging protrusion (an example of a restoring force generating portion)
55s front surface 100 control panel 501 operation unit 501s back surface 502 contact portion 502a inner side surface 503 pressing member 503a outer end 511 lid portion 512 movable electrode 513 fixed electrode 601 winding spring (an example of restoring force generation unit)
602 Resin spring (an example of a restoring force generator)
603 Resin spring (an example of a restoring force generator)
604 Elastic locking part (an example of a restoring force generating part)
605 leaf spring 1003 case front 1031 front surface portion 1031s outer surface 1052 cup member 1053 operation key 1054 waterproof partition forming portion 1055 flange portion 1501 operation portion 2503 operation key 2054 waterproof partition forming portion 3054 waterproof partition forming portion 4054 waterproof partition forming portion 5054 waterproof partition Forming part

Claims (8)

A case member having a through hole on the surface;
A switch disposed on a substrate provided inside the case member;
A cup member having a cup portion disposed in the through hole with the inner bottom surface facing the outside of the case member;
A pressing member disposed in the cup portion for pressing the switch;
A surface member disposed outside the case member and having an outer through hole formed so as to face the through hole of the case member;
An operation unit that is connected to the outer end of the pressing member, protrudes from the outer through hole to the outside of the surface member, and is operated when the switch is pressed;
A return force generator ,
The cup member is welded to the case member so that foreign matter does not enter from between the cup portion and the inner peripheral surface of the through hole, and the movement of the pressing member to press the switch The bottom of the cup presses the switch ,
The operation portion has an abutting portion that is an inner surface of the surface member and is capable of abutting over the entire circumference of the outer through hole,
In the state where the switch is pressed, the contact portion is spaced inward from the surface member,
In the initial state of the operation portion where the contact portion is in contact with the surface member, the switch is in a non-pressed state,
The return force generation unit generates a return force for returning the operation unit from the state where the switch is pressed to the initial state,
The cup member is
A collar portion formed from the edge of the opening of the cup portion and welded to the outer surface of the case member;
A recess formed on the surface of the flange opposite to the case member and having a bottom provided with an opening of the cup,
The return force generator is
It has elasticity and is formed to protrude from the bottom surface of the recess toward the surface member,
The tip contacts with the inside of the contact portion, and urges the contact portion toward the inner surface of the surface member.
Electronics.   A predetermined interval is provided from the return force generating portion to the wall surface of the concave portion on the side opposite to the opening of the cup portion,
  The case member has a stop surface that comes into contact with the contact portion and stops pushing the switch when the switch is pushed down by operating the operation portion,
  The predetermined interval is set to a distance at which the return force generation unit does not contact the wall surface in a state where the contact unit is in contact with the stop surface.
The electronic device according to claim 1. The cup member is welded to the case member over the entire circumference;
The electronic device according to claim 1. The cup part is welded over the entire inner periphery of the through hole,
The electronic device according to claim 1. Before Kitsuba portion is the outer surface welding of the case member,
The electronic device according to claim 1. The case member and the cup member are integrally formed by insert molding,
The electronic device according to claim 1. Electronic components are further arranged on the substrate,
The cup member and the case member are formed so as to cover a side of the substrate on which the switch and the electronic component are disposed.
The electronic device according to claim 1. The cup member has a plurality of connected cup parts,
In the case member, a plurality of the through holes are formed side by side,
A plurality of the switches are arranged side by side on the substrate,
The plurality of cup portions are arranged so that each corresponds to the switch,
A plurality of said cup portion and the cases member which articulated to the, the plurality of switches of said substrate is formed to cover the side are arranged,
The electronic device according to claim 1.

Images