JP5839625B2 - Electric equipment and electrolyzed water generator - Google Patents

Description

  The present invention relates to an electric device and an electrolyzed water generating device that include a display device that displays information.

  2. Description of the Related Art Conventionally, an electric device including a display device that displays information using a light emitting element is known. As an example of a light emitting element, for example, a display element called a 7-segment LED (Light Emitting Diode) that displays characters by seven segments is known. In such an electric device, a light-transmitting cover is usually provided on the front surface of the 7-segment LED, and light emitted from the 7-segment LED passes through the light-transmitting cover and is visually recognized from the outside of the electric device.

  However, if the 7-segment LED is disposed with a gap from the translucent cover, symptoms such as blurred display may occur, and the visibility may deteriorate.

  Therefore, Patent Document 1 discloses an electric device in which the gap between the 7-segment LED and the light-transmitting cover is reduced by mounting the circuit board while being inclined with respect to the light-transmitting cover.

JP 2001-75507 A

  However, even in the electric device disclosed in Patent Document 1, there is still a gap between the 7-segment LED and the translucent cover that deteriorates the visibility, and thus further improvement is required.

  By the way, by appropriately setting the relative position of the circuit board with respect to the light-transmitting cover according to the protruding amount of the 7-segment LED, it is possible to design the 7-segment LED to contact the light-transmitting cover and improve the visibility. is there. However, a slight gap may be generated between the 7-segment LED and the translucent cover depending on individual differences in the thicknesses of the 7-segment LED and the circuit board, and variations in the mounting state of the 7-segment LED on the circuit board. There is a possibility that a large stress may occur in the segment LED and the circuit board. The same applies to an electric device including a display device that displays information using a light emitting element other than a 7-segment LED.

  The present invention has been devised in view of the above circumstances, and has as its main object to provide an electric device that can reduce stress applied to a light emitting element and a circuit board while obtaining good visibility.

  The present invention is an electrical apparatus including a display device that displays information using light emitted from a light emitting element, and the display device includes a translucent cover that transmits light emitted by the light emitting element, and the light emitting element includes: A mounted circuit board; and a mounting base for placing the light emitting element in contact with or close to the translucent cover to place the circuit board in the electrical device. The mounting base includes the circuit board. It includes an elastic support portion that supports the movable cover so as to move away from the translucent cover.

  In the electric device according to the present invention, it is preferable that the light emitting element is in contact with the light transmitting cover.

In the electric device according to the present invention, the electric device further includes a main body case,
The translucent cover is preferably provided in the main body case, and the mounting base is preferably fixed to the main body case.

  In the electrical apparatus according to the present invention, the mounting base includes a front surface that contacts the light-transmitting cover, a rear surface on which the circuit board is opposed, and an opening that exposes the light emitting element of the circuit board. It is desirable to include.

  In the electric device according to the present invention, it is preferable that the light emitting element of the circuit board protrudes from the front surface of the mounting base in a state where the mounting base is detached from the main body case.

  In the electric device according to the present invention, it is preferable that the elastic support portion has a spring-like portion that can be elastically deformed.

  In the electric device according to the present invention, it is preferable that the spring-like portion is meandering.

  In the electric device according to the present invention, it is preferable that a light shielding portion that blocks light emitted from the light emitting element from leaking outside the opening is formed at an edge of the opening.

  In the electric device according to the present invention, it is preferable that a plurality of the elastic support portions are provided, and each elastic support portion is provided at an equal distance from the light emitting element.

  In the electric device according to the present invention, it is preferable that the light-transmitting cover includes a light diffusion layer that diffuses light from the light emitting element.

  In the electric device according to the present invention, it is preferable that the light emitting element is a display element that displays characters by a plurality of segments.

  In the present invention, it is preferable that the electric device is an electrolyzed water generating device that generates electrolyzed hydrogen water, and the display unit displays a dissolved hydrogen concentration in the electrolyzed hydrogen water.

  An electric device of the present invention includes a display device that displays information using light emitted from a light emitting element. The display device includes a translucent cover through which light emitted from the light emitting element passes, a circuit board on which the light emitting element is mounted, and a mounting base for arranging the circuit board in an electric device. Since the mounting base maintains the light emitting element in contact with or close to the translucent cover, display blurring and blurring are suppressed, and visibility of the light emitting element is improved.

  Furthermore, the mounting base has an elastic support portion that supports the circuit board so as to be movable in a direction away from the light-transmitting cover. As a result, individual differences in the thicknesses of the light emitting element and the circuit board, and fluctuations in the mounting state of the light emitting element with respect to the circuit board are absorbed by the elastic deformation of the elastic support portion, thereby reducing stress on the light emitting element and the circuit board. The

It is a perspective view which shows one Embodiment of the electrolyzed water generating apparatus which is an example of the electric equipment of this invention. FIG. 2 is an assembled perspective view of the display device of FIG. 1. FIG. 2 is an assembly cross-sectional view of the display device of FIG. 1. It is a front view of the attachment base to which the circuit board of FIG. 2 was attached. It is the sectional view on the AA line of FIG. FIG. 5 is a perspective view showing a partially broken configuration of the elastic support portion and its periphery in FIG. 4. It is a perspective view of the attachment base of FIG. It is sectional drawing which expands and shows the process of positioning an attachment base to a front cover in the vicinity of 7 segment LED. It is sectional drawing which expands and shows the process of the attachment base adhering to a front cover expanding the vicinity of 7 segment LED. It is a figure which shows the structure inside an electrolyzed water generating apparatus.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external appearance of an electrolyzed water generating apparatus that is an example of the electrical apparatus of the present embodiment. As shown in FIG. 1, the electrolyzed water generating device 1 of this embodiment includes a main body case 10 and a display device 2 that displays information to the user of the electrolyzed water generating device 1.

  2 and 3 show an outline of the display device 2. The display device 2 displays information using output light emitted from the light emitting elements 3 such as a plurality of 7-segment LEDs 3a and a plurality of LEDs 3b. In the display device 2, the light emitting element 3, the translucent cover 4 that transmits the output light of the light emitting element 3, the circuit board 5 on which the light emitting element 3 is mounted, and the circuit board 5 are disposed in the electrolyzed water generating apparatus 1. Mounting base 6.

  In the present embodiment, as the light emitting element 3, 7 segment LEDs 3a arranged side by side in 3 rows and LEDs 3b arranged in the vicinity thereof are used. The 7-segment LED 3a can display characters by appropriately displaying seven segments. 7 segment LED3a displays the dissolved hydrogen concentration in the electrolytic hydrogen water which the electrolyzed water generating apparatus 1 produces | generates with a numerical value, for example. Instead of the 7-segment LED 3a, a 16-segment LED or the like may be applied. Each LED 3b displays, for example, information for prompting replacement of an operation state of the electrolyzed water generating device 1 and a water purification cartridge provided in the electrolyzed water generating device 1.

  The translucent cover 4 is made of a transparent or translucent material, is attached to an opening formed in the front cover 11 of the main body case 10, and is fixed to the front cover 11 by welding or fitting.

  In addition to the light emitting element 3, a drive circuit for driving the light emitting element 3 and a control circuit for controlling light emission of the light emitting element 3 are mounted on the circuit board 5. The circuit board 5 is mounted on the front cover 11 via the mounting base 6.

  The mounting base 6 is fixed to the front cover 11 via fastening means such as screws 71. When the mounting base 6 is fixed to the front cover 11, the light emitting element 3 is maintained in contact with or close to the translucent cover 4. Thereby, blurring or blurring of the display is suppressed, and the visibility of the display of the light emitting element 3 is enhanced.

  FIG. 4 shows a front view of the mounting base 6 to which the circuit board 5 is mounted. FIG. 5 shows a cross-sectional view taken along line AA of FIG. FIG. 6 shows a partially broken configuration of the elastic support portion 61 provided on the mounting base 6 and its periphery. FIG. 7 shows a perspective view of the mounting base 6 as a single unit. The mounting base 6 has a main body 60 and an elastic support 61 that supports the circuit board 5 in a movable manner. The elastic support portion 61 is formed on the main body portion 60. The elastic support portion 61 supports the circuit board 5 so as to be movable away from the light transmitting cover 4 while being elastically deformed. As a result, the thickness variation of the individual light emitting elements 3 and the circuit board 5 and the variation in the mounting state of the light emitting elements 3 with respect to the circuit board 5 are absorbed by the elastic deformation of the elastic support portion 61, and Stress applied to the substrate 5 is reduced.

  The mounting base 6 includes a front surface 62 that comes into contact with the translucent cover 4, a rear surface 63 on which the circuit board 5 is disposed to face each other, a plurality of openings 64 that expose the light emitting elements 3 of the circuit board 5, and the front cover 11. A plurality of attachment portions 65 fixed to the head. The front surface 62, the rear surface 63, and the opening 64 are formed in the main body 60. When the front surface 62 of the mounting base 6 contacts the translucent cover 4, the output light of the light emitting element 3 is suppressed from leaking into the gap between the translucent cover 4 and the mounting base 6, and the visibility of the display device is improved. It is done. The circuit board 5 is attached on the rear surface 63 side of the attachment base 6 so as to be substantially parallel to the rear surface 63.

  The opening 64 is formed so as to penetrate the mounting base 6 in the front-rear direction. The light emitting element 3 of the circuit board 5 disposed to face the rear surface 63 of the mounting base 6 is exposed to the front surface 62 side through the opening 64, and the light emitted from the light emitting element 3 irradiates the translucent cover 4. Is done. The attachment portion 65 is formed to protrude outward from the outer edge of the attachment base 6. The attachment portion 65 is fixed to a mount portion 11 a provided on the front cover 11. The attachment portion 65 and the mount portion 11a are fixed by screws 71.

  As shown in FIGS. 3 and 5, in a state where the mounting base 6 is removed from the front cover 11 of the main body case 10, that is, in a state where the translucent cover 4 and the mounting base 6 are separated from each other, The front end surface 3z protrudes from the front surface 62 of the mounting base 6 in the forward direction, that is, in the direction in which the translucent cover 4 is provided. Thereby, as apparent from FIG. 3, when the mounting base 6 is mounted on the front cover 11, the tip surface 3 z of the 7-segment LED 3 a first comes into contact with the translucent cover 4.

  FIGS. 8 and 9 show the process in which the mounting base 6 is positioned and fixed to the front cover 11 in a time series by enlarging the 7-segment LED 3a and the vicinity thereof. In the figure, for convenience of explanation, a part of the mounting base 6 is shown through.

  The attachment base 6 is attached to the front cover 11 by fastening the screw 71 in a state where the attachment portion 65 is aligned with the mount portion 11a (see FIG. 3). As shown in FIGS. 4 and 7 and the like, the attachment portion 65 is formed with a through hole 65a through which the screw 71 is inserted. On the other hand, as shown in FIG. 3, the mount portion 11a is formed with a screw hole 11b into which the screw 71 is inserted.

  As described above and as shown in FIG. 8 (as indicated by the broken line in FIG. 9), when the mounting base 6 is attached to the front cover 11, the tip surface 3z of the 7-segment LED 3a is first transparent. Abuts on the light cover 4. That is, in the positioning step, the tip surface 3z of the 7-segment LED 3a protrudes from the front surface 62 of the mounting base 6, so that the tip surface 3z is between the translucent cover 4 and the front surface 62 of the mounting base 6. A gap corresponding to the protruding amount is generated.

  2 and 3, when the screw 71 is inserted into the through hole 65a of the mounting portion 65 and fastened to the screw hole 11b of the mount portion 11a, as shown in FIG. 9, the mounting base 6 The main body 60 is pushed by the screw 71 and moves to the translucent cover 4 side. That is, the main body portion 60 of the mounting base 6 is indicated by a broken line in FIG. 9 while the contact state between the tip surface 3z of the 7-segment LED 3a and the translucent cover 4 is maintained by the elastic deformation of the elastic support portion 61. The position moves from the position to the position indicated by the solid line, and the front surface 62 of the main body 60 contacts the translucent cover 4 without any gap. At this time, since the relative positional relationship between the tip surface 3z of the 7-segment LED 3a and the circuit board 5 and the translucent cover 4 is unchanged, the circuit board 5 is transparent when the main body 60 of the mounting base 6 is used as a reference. It moves in a direction away from the light cover 4.

  In a normal display device in which the elastic support portion 61 is not provided, when the mounting base 6 is fixed to the front cover 11 without a gap, excessive stress may be applied to the 7-segment LED 3a and the circuit board 5. However, in this embodiment, the stress applied to the 7-segment LED 3a and the circuit board 5 is reduced by elastically deforming the elastic support portion 61 formed on the mounting base 6. Furthermore, individual differences in the thicknesses of the 7-segment LED 3a and the circuit board 5 and the variation in the mounting state of the 7-segment LED 3a with respect to the circuit board 5 are absorbed by the elastic deformation of the elastic support portion 61, and the 7-segment LED 3a and the circuit board 5 The stress applied to is reduced.

  The amount of protrusion of the tip surface 3z of the 7-segment LED 3a from the front surface 62 of the mounting base 6 takes into account the thickness tolerance of the 7-segment LED 3a and the circuit board 5 and the variation in the mounting state of the 7-segment LED 3a with respect to the circuit board 5. Is set. That is, even if individual differences in the thicknesses of the 7-segment LED 3a and the circuit board 5 or the variation in the mounting state of the 7-segment LED 3a with respect to the circuit board 5 occur, the front end surface 3z of the 7-segment LED 3a extends from the front surface 62 of the mounting base 6. It is set to protrude. As a result, as shown in FIG. 9, the tip surface 3z of the 7-segment LED 3a always abuts against the translucent cover 4 in a state where the mounting base 6 is fixed to the front cover 11, so that the display blurs. And bleeding are suppressed, and the visibility of the 7-segment LED 3a is enhanced. Further, since the front surface 62 of the mounting base 6 is in contact with the translucent cover 4 without any gap, display blur or the like is not caused by the light incident on the gap, and the visibility of the 7-segment LED 3a is improved.

  As shown in FIGS. 6 to 9, the elastic support portion 61 includes an elastically deformable spring-like portion 61 a, a support portion 61 b that supports the circuit board 5, and an opening formed through the main body portion 60. 61c.

  The spring-like portion 61a extends from one end edge of the opening 61c to the inside of the opening 61c. The spring-like portion 61a extends in a meandering manner. Such a spring-like portion 61a further reduces the stress applied to the 7-segment LED 3a and the circuit board 5.

  The support part 61b is formed at the tip of the spring-like part 61a. The support part 61 b and the circuit board 5 are fixed via screws 72. The opening 61c separates the main body portion 60 and the support portion 61b. Since the opening 61c is formed through the main body portion 60, the support portion 61b can move in a direction toward or away from the translucent cover 4 when the spring-like portion 61a is elastically deformed. Along with this, the circuit board 5 also moves in the above direction together with the support portion 61b.

  As shown in FIG. 4 and the like, in this embodiment, four elastic support portions 61 are provided around the 7-segment LED 3a. Each elastic support portion 61 is provided symmetrically in plan view with the 7-segment LED 3a as the center. That is, each elastic support portion 61 is provided at an equal distance from the 7-segment LED 3a. Thereby, the elastic force generated by the spring-like portion 61a of each elastic support portion 61 is made uniform, and the stress applied to the circuit board 5 is also made uniform. Therefore, the stress applied to the circuit board 5 is distributed.

  As shown in FIGS. 7 to 9, a light shielding portion 66 is formed at the edge of the opening 64 of the mounting base 6. The light shielding portion 66 extends from the main body portion 60 toward the circuit board 5 and blocks light emitted from the light emitting element 3. Thereby, it is suppressed that the light radiate | emitted from each light emitting element 3 leaks to the outer side of each opening part 64, and the visibility of the display apparatus 2 is improved.

  In the present embodiment, a light diffusion layer (not shown) for diffusing light from the light emitting element 3 is provided on the inner surface of the translucent cover 4. The light diffusing layer is realized, for example, by forming a cloudy colored coating film on the inner surface of the translucent cover 4 by silk printing. The light diffusion layer prevents the internal configuration from being seen through from the outside of the electrolyzed water generating device 1 through the light-transmitting cover 4. Thereby, the electrolyzed water generating apparatus 1 excellent in design property can be provided. In addition, a light blocking layer that blocks light from the light emitting element 3 may be appropriately formed on the light diffusion layer.

  FIG. 10 shows an internal configuration of the electrolyzed water generating apparatus 1. The electrolyzed water generating apparatus 1 includes a water purification cartridge 21 that purifies tap water, an electrolysis tank 22 that electrolyzes water purified by the water purification cartridge 21, and a flow path switching valve that switches a flow path upstream and downstream of the electrolysis tank 22. 23a and 23b, and a control circuit 24 for controlling the electrolyzed water generating apparatus 1.

The water purification cartridge 21 is configured to be detachable from the main body case 10. The water purified by the water purification cartridge 21 is supplied to the electrolytic cell 22 through the first pipe 25, the first sub pipe 25a, and the second sub pipe 25b.

The electrolytic cell 22 has an anode chamber 22b and a cathode chamber 22c separated by a diaphragm 22a. When a DC voltage is applied between the anode plate 22d provided in the anode chamber 22b and the cathode plate 22e provided in the cathode chamber 22c, electrolyzed hydrogen water is generated in the cathode chamber 22c by electrolysis and in the anode chamber 22b. Electrolytic acid water is generated respectively. The DC voltage applied between the anode plate 22d and the cathode plate 22e is controlled by the control circuit 24, for example. The electrolytic hydrogen water generated in the cathode chamber 22 c is sent out through the second pipe 26. On the other hand, the electrolytic acid water generated in the anode chamber 22 b is sent out through the third pipe 27.

  The control circuit 24 controls each part. For example, the control circuit 24 controls the polarities of the electrode plates 22d and 22e and the operations of the flow path switching valves 23a and 23b. Further, the control circuit 24 controls display of the light emitting element 3 through the circuit board 5. For example, the control circuit 24 calculates the dissolved hydrogen concentration of the electrolytic hydrogen water based on the output signal from the dissolved hydrogen sensor (not shown), and displays it on the 7-segment LED 3a.

  According to the electrolyzed water generating apparatus 1 of the present embodiment having the above-described configuration, the display device 2 has a translucent cover 4 through which light emitted from the 7-segment LED 3a passes and a circuit board 5 on which the 7-segment LED 3a is mounted. And a mounting base 6 for disposing the circuit board 5 in the electrolyzed water generating device 1, and the mounting base 6 maintains the 7-segment LED 3a in contact with or close to the translucent cover 4, The visibility of the 7-segment LED 3a is improved.

  Further, the mounting base 6 has an elastic support portion 61 that supports the circuit board 5 so as to be movable away from the light-transmitting cover 4. Thereby, individual differences in the thicknesses of the 7-segment LED 3a and the circuit board 5 and the variation in the mounting state of the 7-segment LED 3a with respect to the circuit board 5 are absorbed by the elastic deformation of the elastic support portion 61, and the 7-segment LED 3a and the circuit board are absorbed. 5 is reduced.

  As mentioned above, although the electrolyzed water generating apparatus 1 of this invention was demonstrated in detail, this invention is changed and implemented in various aspects, without being limited to said specific embodiment. For example, the present invention can be widely applied to electrical devices other than the electrolyzed water generating device 1 as long as the display device 2 that displays information using light emitted from the light emitting element 3 is provided. The light-emitting element 3 is not limited to the 7-segment LED 3a, but can be widely applied to other light-emitting elements 3 such as the LED 3b. That is, the electrical apparatus of the present invention includes at least a display device 2 that displays information using light emitted from the light emitting element 3, and the display device 2 includes a light-transmitting cover 4 that transmits light emitted from the light emitting element 3. A circuit board 5 on which the light emitting element 3 is mounted, and a mounting base 6 for placing the circuit board 5 in an electric device by bringing the light emitting element 3 into contact with or close to the translucent cover 4. The elastic support part 61 may be included so as to support the circuit board 5 so as to be movable away from the translucent cover 4.

  Moreover, the area | region which opposes the light emitting element 3 of the translucent cover 4 may protrude in the 7 segment LED3a side, and may be formed. In this case, as long as the contact between the tip surface 3z of the 7-segment LED 3a and the front surface 62 of the mounting base 6 is ensured, the tip surface 3z and the front surface 62 may be provided on the same plane, or the tip surface 3z. May be provided by being recessed from the front surface 62.

  The form of the elastic support portion 61 is not limited to the form shown in FIGS. For example, the circuit board 5 may be supported by the mounting base 6 via an annular ring member (so-called O-ring) made of an elastic body such as rubber.

1 Electrolyzed water generator (electric equipment)
2 Display device 3 Light emitting element 3a 7 segment LED
3b LED
DESCRIPTION OF SYMBOLS 4 Light transmission cover 5 Circuit board 6 Mounting base 10 Main body case 61 Elastic support part 61a Spring-like part 62 Front surface 63 Rear surface 64 Opening part 66 Light-shielding part

Claims (12)

An electrical device including a display device that displays information using light emitted from a light emitting element,
The display device
A light-transmitting cover through which light emitted by the light emitting element passes,
A circuit board on which the light emitting element is mounted;
A mounting base for placing the circuit board in the electric device by bringing the light-emitting element into contact with or close to the light-transmitting cover;
Said mounting base, said light-transmitting cover and the front abutting electrical apparatus which comprises an elastic support portion for movably supporting the direction away the circuit board from the translucent cover. The electrical device according to claim 1 , wherein the mounting base includes a rear surface on which the circuit board is disposed to face the mounting base . The electrical device according to claim 1 , wherein the mounting base includes an opening that exposes the light emitting element of the circuit board . The electrical device further includes a body case,
The translucent cover is provided on the main body case,
The electrical device according to claim 1, wherein the mounting base is fixed to the main body case .   The electric device according to claim 4, wherein the light emitting element of the circuit board protrudes from the front surface of the mounting base in a state where the mounting base is detached from the main body case.   The electric device according to claim 4, wherein the elastic support portion includes a spring-like portion that can be elastically deformed.   The electrical apparatus according to claim 6, wherein the spring-like portion extends in a meandering manner. The electric device according to claim 3, wherein a light shielding portion that blocks light emitted from the light emitting element from leaking to the outside of the opening is formed at an edge of the opening. A plurality of the elastic support portions are provided,
The electric device according to claim 1, wherein each elastic support portion is provided at an equal distance from the light emitting element.   The electric device according to claim 1, wherein the translucent cover includes a light diffusion layer that diffuses light from the light emitting element.   The electric device according to claim 1, wherein the light emitting element is a display element that displays characters by a plurality of segments. The electrical device is an electrolyzed water generating device that generates electrolyzed hydrogen water,
The electrolyzed water generating apparatus according to claim 1, wherein the display device displays a dissolved hydrogen concentration in the electrolyzed hydrogen water.

Images