JP2009302795A - Waterproof window structure, and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To waterproof a window part by easily attaching the window part to a housing with an easy structure. <P>SOLUTION: A window part 22 around which an elastic member 23 is integrally molded is attached to a hole (21) part formed in the housing 2 by pressing the elastic member 23 around the hole (21) part. Specifically, the window part 22 consists of a transparent member. Furthermore, the window part 22 includes a fixing part 24 which prevents falling-off from the housing 2. The fixing part 24 is an auxiliary member which presses the window part 22 and is fixed to the housing 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a waterproof window structure provided in a housing, and an electronic apparatus including the waterproof window structure.

Patent Document 1 discloses a technique in which a light guide portion of a status indicator is attached to a housing by ultrasonic welding or double-sided tape. That is, for example, if the structure is attached using a packing for waterproofing, it is necessary to provide a support portion for supporting the status indicator and the packing in the thickness direction of the casing, but recently the casing has been thinned. For this reason, waterproofing cannot be achieved using the packing.
JP 2004-309629 A

  However, according to Japanese Patent Application Laid-Open No. H10-260707, the attachment is troublesome for ultrasonic welding, and the attachment is troublesome for double-sided tape and is weak against heat.

  The subject of this invention is attaching a window part to a housing | casing with a simple structure, and waterproofing.

  In order to solve the above-described problems, the invention according to claim 1 is characterized in that a window portion integrally molded with an elastic member presses the elastic member around the hole portion with respect to the hole portion formed in the housing. It features a waterproof window structure that is attached.

  The invention according to claim 2 is the waterproof window structure according to claim 1, wherein the window portion is made of a transparent member.

  A third aspect of the present invention is the waterproof window structure according to the first or second aspect, further comprising a fixing portion that prevents the window portion from coming off the housing.

  A fourth aspect of the present invention is the waterproof window structure according to the third aspect, wherein the fixing portion is an auxiliary member that is fixed to the housing by pressing the window portion.

  The invention according to claim 5 is the waterproof window structure according to claim 3, wherein the fixing portion has an engaging portion that engages with a holding portion provided in the housing. .

  Invention of Claim 6 is the waterproof window structure of Claim 3, Comprising: The said fixing | fixed part is the recessed part provided in the circumference | surroundings of the said elastic member, The said circumference | surroundings of the said periphery of the said hole part The housing is sandwiched.

  According to a seventh aspect of the present invention, there is provided an electronic apparatus including the waterproof window structure according to any one of the first to sixth aspects in a housing.

  According to the present invention, when the window portion is attached, it can be easily attached with a simple structure by combining the structure for waterproofing and fixing.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 shows an integrated mobile phone as a configuration of an embodiment of an electronic apparatus to which the present invention is applied. FIG. 1A is a view from the front side, and FIG. 1 is an upper casing, 2 is a lower casing, 11 is an operation section, 12 is a display section, 13 is a receiving section, 14 is a transmitting section, 15 is a speaker hole, 20 is a camera window, 30 Is a light window, and 40 is an infrared window.

  In the embodiment, the integrated mobile phone includes an upper casing 1 in which a display window, an acoustic structure, a key structure, and a casing mating surface seal structure are integrally formed using an elastic member (not shown), and the upper casing seal equivalent A waterproof casing is formed by combining the lower casing 2 having a seal groove corresponding to a part. The upper housing 1 is provided with an operation unit 11, a display unit 12, a receiving unit 13 and a transmitting unit 14, and the lower housing 2 is provided with a speaker hole 15, a camera window 20, a light window 30 and an infrared window 40. . In the illustrated example, a circular camera window 20 and a light window 30 are provided with a waterproof window structure along the upper end portion of the lower casing 2, and an oval infrared window 40 is also waterproof on the upper end face of the lower casing 2. It is provided by a window structure.

  2 shows the waterproof window structure of the camera window 20, FIG. 3 shows the waterproof window structure of the infrared window 40, FIG. 4 shows the disassembled state of the housing and components, 3 is the middle case, 4 is the circuit board, 5 Is a display unit, 6 is a speaker, 7 is a camera unit, 8 is an infrared unit, 21 is a camera window hole, 31 is a light window hole, and 41 is an infrared window hole. FIG. 5 shows the relationship between the lower housing 2, the camera window 20, the light window 30 and the infrared window 40. The camera window 20, the light window 30 and the infrared window 40 with a waterproof window structure are sub-packages of the state in which the display unit 5, the speaker 6, the camera unit 7, the infrared unit 8, etc. are mounted on the middle case 3 and the circuit board 4. Before the assembly is assembled, it is assembled into the lower housing 2 as described below.

  6 is an enlarged view of the camera window 20, and FIG. 7 is a partially enlarged view of the main part of the camera window 20 of FIG. The camera window 20 includes a window portion 22 made of a circular transparent member, an elastic member 23 such as rubber provided on the outer peripheral surface thereof, and an annular plate-shaped fixing portion 24 that supports one side surface of the window portion 22. ing. Specifically, the camera window 20 is obtained by integral molding so that the inner peripheral side extension 23a of the elastic member 23 is interposed between the window portion 22 and the fixing portion 24.

  As shown in FIG. 5, the camera window 20 is fitted into the camera window hole 21 of the lower housing 2 with the window portion 22 below and the fixing portion 24 facing up. That is, the window portion 22 is fitted into the camera window hole 21 while the elastic member 23 on the outer periphery of the window portion 22 is pressed and elastically deformed on the inner peripheral surface thereof, and the fixing portion 24 is overlapped on the bottom surface of the lower housing 2. In the illustrated example, the fixing portion 24 is overlaid on the concave portion 25 formed on the outer peripheral side of the camera window hole 21 on the bottom surface of the lower housing 2.

  The assembled state of the camera window 20 as described above is shown in FIG. The upper housing 1, the lower housing 2, the middle case 3 and the circuit board 4 are combined with fastening screws at the four corners and mounted on the circuit board 4 in a state where the circuit board 4 is assembled as shown in the figure. The camera unit 7 overlaps with the fixing portion 24 and functions as a stopper for the camera window 20. Accordingly, the fixing portion 24 is an auxiliary member that holds the window portion 22 and is fixed to the lower housing 2 in addition to the function of preventing the window portion 22 from being pulled out from the camera window hole 21. .

  As described above, according to the camera window 20 of the embodiment, the window portion 22 is fitted into the inner peripheral surface of the camera window hole 21 of the lower housing 2 while being elastically deformed by pressing the elastic member 23, and the concave portion on the bottom surface of the lower housing 2. Since the camera unit 7 mounted on the circuit board 4 is stacked on the fixing part 24 and the camera unit 7 mounted on the fixing part 24 is overlapped with the fixing part 24, when the window part 22 is attached, the structure for waterproofing and fixing is also used. It can be easily installed with a simple structure.

  Next, similarly to the camera window 20, the light window 30 also supports a window portion 32 made of a circular transparent member, an elastic member (not shown) such as rubber provided on the outer peripheral surface, and one side surface around the window portion 32. And an annular plate-shaped fixing portion 34. Specifically, similarly to the camera window 20, the light window 30 is obtained by integral molding so that the inner peripheral side extension of the elastic member is interposed between the window 32 and the fixed part 34.

  Similarly to the camera window 20, the light window 30 is fitted into the light window hole 31 of the lower housing 2 with the window portion 32 below and the fixing portion 34 facing upward, as shown in FIG. 5. That is, as with the camera window 20, the window portion 32 is fitted into the light window hole 31 while pressing the elastic member on the outer periphery of the window portion 32 to be elastically deformed and fixed to the bottom surface of the lower housing 2. The parts 34 are stacked. In the illustrated example, the fixing portion 34 is overlaid on the concave portion 35 formed on the outer peripheral side of the light window hole 31 on the bottom surface of the lower housing 2.

  Although not shown, the upper housing 1, the lower housing 2, the middle case 3, and the circuit board 4 are combined with fastening screws at the four corners and mounted on the circuit board 4 in a state where the circuit board 4 is assembled. A light unit (not shown) overlaps with the fixed portion 34 and functions as a stopper for removing the light window 30. Accordingly, the fixing portion 34 is an auxiliary member that holds the window portion 32 and is fixed to the lower housing 2 in addition to having a function of preventing the window portion 32 from coming out of the light window hole 31 to the outside. .

  As described above, the same effect as that of the camera window 20 described above can be obtained by the light window 30 of the embodiment. That is, the window portion 32 is fitted into the inner peripheral surface of the light window hole 31 of the lower housing 2 while being elastically deformed by pressing an elastic member, and the fixing portion 34 is overlaid on the concave portion 35 on the bottom surface of the lower housing 2. Since the light unit mounted on the circuit board 4 is stacked on the circuit board 34, when the window portion 32 is attached, it can be easily attached with a simple structure by combining the structure for waterproofing and fixing. it can.

  Next, the infrared window 40 is fixed in the shape of an oval plate that supports a window portion 42 made of an oval transparent member, an elastic member 43 such as rubber provided on the outer peripheral surface thereof, and one side surface of the window portion 42. Part 44. Specifically, the infrared window 40 is obtained by integral molding so that the inner peripheral side extension 43a of the elastic member 43 is interposed between the window 42 and the fixed part 44.

  As shown in FIG. 5, the infrared window 40 is fitted into the infrared window hole 41 of the lower housing 2 with the window portion 42 first and the fixed portion 44 behind. That is, the window portion 42 is fitted into the infrared window hole 41 while the elastic member 43 on the outer periphery of the window portion 42 is pressed and elastically deformed on the inner peripheral surface of the infrared window hole 41, and the fixing portion 44 is overlapped on the end surface of the lower housing 2.

The assembled state of the infrared window 40 as described above is shown in FIG. When the upper case 1, the lower case 2, the middle case 3 and the circuit board 4 are combined with the fastening screws at the four corners, and the middle case 3 and the circuit board 4 are assembled as shown, the middle case 3 and the circuit board 4 overlap each other at the end of the fixing portion 44 and function as a retaining for the infrared window 40. Accordingly, the fixing portion 44 is an auxiliary member that holds the window portion 42 and is fixed to the lower housing 2 in addition to the function of preventing the window portion 42 from being pulled out from the infrared window hole 41. .
Note that the infrared unit 8 mounted on the circuit board 4 is located behind the fixed portion 44. By this infrared unit 8, data communication by infrared rays can be performed.

  As described above, according to the infrared window 40 of the embodiment, the window portion 42 is fitted into the inner peripheral surface of the infrared window hole 41 of the lower casing 2 while being elastically deformed by pressing the elastic member 43, and is fitted to the end surface of the lower casing 2. Since the fixing portion 44 is overlapped and the end surfaces of the middle case 3 and the circuit board 4 are overlapped on the fixing portion 44, when the window portion 42 is attached, a structure that performs waterproofing and fixing is also used. The structure is easy to install.

  In the above embodiment, the waterproof window is fixed to the housing by being sandwiched with the assembly parts, but the fixing method to the housing is not limited to the embodiment, and various fixing methods are adopted as follows. Can do.

(Embodiment 2)
FIG. 8 shows the structure of the camera window 20 as the second embodiment. As in the first embodiment, 1 is an upper housing, 3 is a middle case, 7 is a camera unit, 21 is a camera window hole, and 22 is A window part, 23 is an elastic member, 23a is an inner peripheral side extension part, 24 is a fixed part, and 25 is a concave part.
is there.

  That is, in the second embodiment, as shown in the drawing, the camera window 20 is fitted into the upper casing 1 while the elastic member 23 is pressed against the inner peripheral surface of the camera window hole 21 of the upper casing 1 and is elastically deformed. The fixing unit 24 is overlaid on the recess 25 on the upper surface of the body 1, and the camera unit 7 mounted on the circuit board 4 is stacked under the fixing unit 24. In the illustrated example, an upper cover 9 is overlaid on the upper casing 1, and a window hole 29 corresponding to the camera window hole 21 is formed in the upper cover 9.

(Embodiment 3)
FIG. 9 shows the structure of the camera window 20 as the third embodiment. As in the first embodiment, 2 is a lower housing, 22 is a window portion, 24 is a fixing portion, 25 is a recess, and 31 is a light window. A hole 35 is a recess.

  That is, in the third embodiment, the camera window 20 is formed by protruding a pair of engaging arm portions 24a positioned opposite to each other in the diameter direction on the outer periphery of the fixed portion 24 as illustrated. In addition, a pair of grooves 26 that are positioned opposite to each other in the diameter direction on the outer periphery of the concave portion 25 of the lower housing 2 are formed along the circumferential direction. A holding piece 27 is fixedly provided above the end of each groove 26 in the illustrated counterclockwise direction.

The camera window 20 has a pair of engaging arm portions 24 a on the outer periphery of the fixing portion 24 at the outer periphery of the concave portion 25 when the fixing portion 24 is overlapped with the concave portion 25 on the outer peripheral side of the camera window hole 21 on the bottom surface of the lower housing 2. Each of the pair of grooves 26 is positioned. Then, the fixing portion 24 is rotated counterclockwise in the drawing, and the pair of engaging arm portions 24a are respectively positioned below the holding pieces 27 above the ends of the pair of grooves 26. As a result, the camera window 20 is fixed to the bottom surface of the lower housing 2.
The engaging arm portion may be provided upright from the lower housing 2 and a groove that engages with the engaging arm portion may be provided in the camera window.

(Embodiment 4)
FIG. 10 shows the structure of the camera window 20 and the light window 30 as the fourth embodiment. As in the first embodiment, 2 is a lower housing, 22 is a window portion, and 32 is a window portion.

  That is, in the fourth embodiment, the camera window 20 and the light window 30 support the window portion 22 and the window portion 32 of the camera window 20 and the light window 30 with an integral connecting and fixing portion 50 as illustrated. And the fastening part 51 provided in the both ends of the integral connection fixing | fixed part 50 which supported these window part 22 and the window part 32 is mounted on the bottom face of the lower housing | casing 2, and is fixed with a pair of fastening screw.

  In this way, a plurality of windows may be connected and supported by a common fixing portion.

(Embodiment 5)
FIG. 11 shows the structure of the camera window 20 as the fifth embodiment. As in the first embodiment, 2 is a lower housing, 21 is a camera window hole, 22 is a window portion, 23 is an elastic member, 25 is It is a recess.

  That is, in the fifth embodiment, the camera window 20 is composed of a window portion 22 and an elastic member 23 as shown in the figure, and the elastic member 23 has upper and lower flanges 23b and 23c on the outer peripheral side, A recess is formed between the flanges 23b and 23c. In the illustrated example, the upper flange 23c is larger than the lower flange 23b.

  The camera window 20 is fixed by inserting an elastic member 23 into the camera window hole 21 of the lower housing 2 and sandwiching the periphery of the camera window hole 21 of the lower housing 2 with upper and lower flanges 23b and 23c.

  As described above, the periphery of the window hole of the housing may be sandwiched and fixed in the shape of an elastic member without using a separate fixing portion.

(Embodiment 6)
Although not shown, the fixing portion and the housing are bonded. The adhesion is performed using an adhesive or a double-sided tape.

(Modification)
In the above, the material of the window portion made of the transparent member is desirably glass (including tempered glass) in terms of integral molding, but may be a resin that can withstand the molding temperature of the elastic member. Similarly, the material of the fixing part is not limited as long as it can withstand the molding temperature.
Further, in the embodiment, the seal structure on the outer peripheral surface of the window portion is used. However, as a front seal structure in which an elastic member is provided around the front surface of the window portion and the elastic member is pressed against the peripheral surface of the window hole to be elastically deformed. Also good.

(Other variations)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and an electronic device having a waterproof window, such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. Can be used for all.
Moreover, as a waterproof window, the cover glass etc. which cover the main display apparatus of an electronic device may be sufficient.
Furthermore, the shape and the like of the waterproof window are arbitrary, and it is needless to say that other specific detailed structures can be appropriately changed.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of one Embodiment of the electronic device to which this invention is applied is shown, the perspective view (a) seen from the front side which showed the integrated mobile phone, and the perspective view (b) seen from the back side. It is a longitudinal cross-sectional view which shows the structure of the camera window of FIG.1 (b). It is a longitudinal cross-sectional view which shows the structure of the infrared window of Fig.1 (a) and (b). It is a disassembled perspective view of the housing | casing and components of Fig.1 (a) and (b). FIG. 5 is an exploded perspective view showing a relationship between the lower housing of FIG. 4 and a camera window, a light window, and an infrared window. It is the expansion perspective view which looked at the camera window of FIG. 5 from the other side. FIG. 7 is a partially broken perspective view showing an enlarged main part of the camera window of FIG. 6. FIG. 9 is a perspective view of a main part fracture showing the structure of the camera window according to the second embodiment. FIG. 10 is a perspective view showing a main part of a camera window according to a third embodiment. FIG. 9 is a perspective view showing a main part of a structure of a camera window and a light window according to a fourth embodiment. FIG. 10 is a perspective view of a main part fracture showing the structure of the camera window according to the fifth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper housing | casing 2 Lower housing | casing 3 Middle case 4 Circuit board 5 Display unit 6 Speaker 7 Camera unit 8 Infrared unit 9 Upper cover 11 Operation part 12 Display part 13 Reception part 14 Transmission part 15 Speaker hole 20 Camera window (waterproof window) )
21 Camera window hole 22 Window part 23 Elastic member 23a Inner peripheral side extension part 23b Flange 23c Flange 24 Fixing part 24a Engaging part 25 Recessed part 26 Groove 27 Holding part 29 Window hole 30 Light window (waterproof window)
31 Light window hole 32 Window part 34 Fixing part 25 Recessed part 40 Infrared window (waterproof window)
41 Infrared window hole 42 Window part 43 Elastic member 43a Inner peripheral side extension part 44 Fixing part 50 Connection fixing part 51 Fastening part

Claims (7)

  A waterproof window structure, wherein a window portion integrally formed with an elastic member is attached to a hole portion formed in a housing by pressing the elastic member around the hole portion.   The waterproof window structure according to claim 1, wherein the window portion is made of a transparent member.   The waterproof window structure according to claim 1, further comprising a fixing portion that prevents the window portion from being detached from the housing.   The waterproof window structure according to claim 3, wherein the fixing part is an auxiliary member that holds the window part and is fixed to the housing.   The waterproof window structure according to claim 3, wherein the fixing portion has an engaging portion that engages with a holding portion provided in the housing.   The waterproof window structure according to claim 3, wherein the fixing portion is a recess provided around the elastic member, and the casing around the hole is sandwiched in the recess.   An electronic apparatus, comprising a waterproof window structure according to any one of claims 1 to 6 in a housing.

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