JP2016046541A - Electric device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric device which achieves high volume and quality of sounds output from a speaker and inhibits electric leakage.SOLUTION: An electrolyzed water generator 1 includes: a front surface cover 2 disposed at the front side 11 in a usage state of a device body 10; and a speaker 3 having a diaphragm 31 which generates sounds. The front surface cover 2 has a closed wall part 21 which is an area where no through hole penetrating through the front surface cover 2 in a thickness direction is provided. The speaker 3 is disposed at the inner surface side of the closed wall part 21 so as to cause the closed wall part 21 to vibrate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric device including a speaker.

  2. Description of the Related Art Conventionally, electric devices that generate sound using a speaker are known. For example, Patent Document 1 discloses an electrolyzed water generating device including a speaker for outputting a voice guide. In this electrolyzed water generating apparatus, the speaker is disposed with the diaphragm facing downward on the inner surface side of the bottom wall of the apparatus in order to prevent electric leakage due to water scattered from the sink.

JP 2007-196078 A

  However, in the electrolyzed water generating device shown in Patent Document 1, the sound leaked from between the device and the installation surface is transmitted to the user for the convenience of being arranged with the diaphragm facing downward, so that there is no sound omission. It is bad, and the sharpness of the sound is also reduced. Further, in the above electrolyzed water generating apparatus, a through hole (a sound outlet hole 9 in the same document) is provided in the bottom wall in order to improve sound leakage to some extent. However, if water enters the inside of the apparatus from the through hole, there is a risk of electric leakage. In addition, since the speaker is arranged on the bottom wall of the apparatus, if water leaks in the apparatus for some reason, the speaker is likely to get wet, and there is a risk of leakage.

  The present invention has been devised in view of the above circumstances, and has as its main object to provide an electrical device that has good sound volume and sound quality output from a speaker and can suppress leakage.

  The present invention relates to an electric device including a front cover disposed on the front side of the device main body in use and a speaker having a diaphragm for generating sound, the front cover penetrating in the thickness direction thereof. And the speaker is arranged on the inner surface side of the blocking wall portion so as to vibrate the blocking wall portion. .

  In the electric device according to the present invention, it is preferable that the speaker is arranged with the diaphragm facing the front of the electric device.

  In the electric device according to the present invention, it is preferable that a support portion for supporting the speaker is formed on the inner surface of the blocking wall portion so as to contact the outer peripheral portion of the speaker.

  In the electric device according to the present invention, it is preferable that the support portion protrudes in a cylindrical shape from the inner surface of the blocking wall portion.

  The electric device according to the present invention preferably further includes a cap member attached to the support portion and covering the speaker from the rear side.

  In the electric device according to the present invention, it is preferable that the outer peripheral portion of the speaker is sandwiched between the support portion and the cap member.

  In the electric device according to the present invention, it is preferable that an opening for passing a signal line connected to the speaker is provided in the support portion or the cap member.

  In the electric device according to the present invention, it is preferable that the opening is provided on a lower side of the support portion when the electric device is in use.

  In the electric device according to the present invention, it is preferable that a blindfold sheet is fixed to an outer surface of the front cover so as to cover at least a region corresponding to the support portion.

  The electrical device of the present invention includes a front cover disposed on the front side of the device main body in use and a speaker having a diaphragm that generates sound. The front cover blocks water scattered from the front of the electric device and suppresses leakage of the electric device. In addition, the front cover has a closed wall portion which is a region where a through hole penetrating in the thickness direction is not provided, and the speaker is arranged on the inner surface side of the closed wall portion. Therefore, the blockage wall portion prevents water from entering the speaker and further suppresses electric leakage of the electric device.

  The speaker is arranged so as to vibrate the blocking wall portion and thus the front cover. Therefore, the air in front of the electric device vibrates due to the vibration of the front cover, and a sound with a sufficient volume and high definition can be output from the front surface.

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. It is sectional drawing of the front cover and speaker of FIG. It is an assembly perspective view which shows the attachment structure of the speaker seen from the inner surface side of the front cover of FIG. It is another sectional drawing of the front cover and speaker of FIG. It is a perspective view which shows the structure of the cap member of FIG. It is a figure which shows the structure inside the electrolyzed water generating apparatus of FIG.

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. The electrolyzed water generator 1 is installed on a kitchen sink or the like, and electrolyzes tap water to generate electrolyzed hydrogen water (dissolved hydrogen water) in which hydrogen is dissolved. As shown in FIG. 1, the electrolyzed water generating device 1 of this embodiment includes a front cover 2 and a speaker 3.

  The front cover 2 is molded, for example, by injecting and injecting resin into a mold. In this embodiment, for example, ABS (acrylonitrile, butadiene, styrene) resin is used. The thickness of the front cover 2 is, for example, 1 mm to 3 mm. The front cover 2 may partially differ in thickness.

  The front cover 2 is disposed on the front side 11 when the device main body 10 is in use. The front side 11 in the use state of the device main body 10 means the front side of the device main body 10 when the electrolyzed water generating apparatus 1 is installed on a sink or the like in a state where it is normally used. Therefore, the front side 11 of the device main body 10 in use is provided with a display unit 12 for displaying an operation state and the like of the electrolyzed water generating device 1 and an operation unit 13 operated by a user.

  For example, a display panel such as an LCD (Liquid Crystal Display) 12 a can be applied to the display unit 12. The LCD displays the operation state and the like of the electrolyzed water generating device 1 with images such as character information and graphic information.

  In the operation unit 13, for example, a plurality of operation buttons 13a operated by a user are arranged. A switch (not shown) for switching the operation mode of the electrolyzed water generating device 1 is provided on the back of each operation button 13a. The switch is connected to a control unit that controls the electrolyzed water generating apparatus 1. When the user operates the operation button 13a, the switch operates to input a signal to the control unit, and the operation mode of the electrolyzed water generating device 1 is switched.

  The front cover 2 has an opening (not shown) penetrating the front cover 2 in a region where the display unit 12 and the operation unit 13 are provided. The front cover 2 may be formed integrally with a rear cover disposed on the rear side in the usage state of the device main body 10, an upper surface cover disposed on the upper side, or the like. The front cover 2 blocks water scattered from the front of the electrolyzed water generating device 1 and suppresses leakage of the electrolyzed water generating device 1.

  The speaker 3 has a diaphragm 31 that generates sound by vibrating air. As the diaphragm 31 vibrates, the air in front of the diaphragm 31 vibrates, and sound is transmitted. The speaker 3 is disposed on the inner surface side of the front cover 2.

  FIG. 2 shows a cross section of the front cover 2 and the speaker 3. The front cover 2 has a blocking wall portion 21 which is a region where a through hole penetrating in the thickness direction is not provided. The blocking wall portion 21 blocks entry of water scattered from the front of the electrolyzed water generating device 1 into the device main body 10. The speaker 3 is disposed on the inner surface 21 i side of the blocking wall portion 21. Accordingly, the blocking wall portion 21 prevents water from entering the speaker 3 and further suppresses leakage of the electrolyzed water generating device 1.

  The speaker 3 is arranged so as to vibrate the blocking wall portion 21. For example, the speaker 3 is arranged close to the blocking wall portion 21. At this time, the speaker 3 is arranged with the diaphragm 31 facing the blocking wall portion 21, that is, facing the front of the electrolyzed water generating device 1. Therefore, the vibration of the diaphragm 31 propagates to the blocking wall 21 via the air between the diaphragm 31 and the blocking wall 21 and the blocking wall 21 vibrates.

  In order to efficiently propagate the vibration of the vibration plate 31 to the blocking wall portion 21, it is desirable that the vibration plate 31 is arranged toward the blocking wall portion 21. However, the direction of the diaphragm 31 is not limited as long as the vibration of the air in front of or behind the diaphragm 31 is propagated to the blocking wall portion 21. For example, by arranging a duct or the like between the diaphragm 31 and the closing wall portion 21, the direction of the diaphragm 31 can be made arbitrary. Alternatively, the diaphragm 31 may be brought into contact with the blocking wall 21 so that the diaphragm 31 directly vibrates the blocking wall 21.

  In the present embodiment, since the speaker 3 is arranged so as to vibrate the blocking wall portion 21 and thus the front cover 2, the air in front of the electrolyzed water generating device 1 is caused by the vibration of the blocking wall portion 21 and the front cover 2. Vibrate, and a sound with high volume and high definition can be output from the front.

  The speaker 3 includes a diaphragm 31, a coil 32 that drives the diaphragm 31, and a frame 33 that supports the diaphragm 31 and the coil 32. An edge portion 31 e is provided on the outer peripheral portion of the diaphragm 31. The main body portion of the diaphragm 31 is suspended by the edge portion 31 e so as to vibrate in the front-rear direction, and is driven by the coil 32. The frame 33 is provided with a support portion 33 e that supports the diaphragm 31. The support portion 33e is formed on the outer side of the edge portion 31e, and sandwiches and restrains the outer end portion of the diaphragm 31. Accordingly, the support portion 33 e of the frame 33 becomes the outer peripheral portion 3 e of the speaker 3. The configuration of the speaker 3 is not limited to that shown in FIG. 2 and the like, and a known speaker can be appropriately employed.

  FIG. 3 is an assembled perspective view showing the mounting structure of the speaker 3 as viewed from the inner surface 2i side of the front cover 2. As shown in FIG. A support portion 22 for supporting the speaker 3 is formed on the inner surface 21 i of the blocking wall portion 21. The support portion 22 contacts the outer peripheral portion 3 e of the speaker 3 to support the speaker 3. Thereby, the diaphragm 31 is arrange | positioned facing the obstruction | occlusion wall part 21 so that the obstruction | occlusion wall part 21 can be vibrated.

  The support portion 22 protrudes in a cylindrical shape from the inner surface 21 i of the blocking wall portion 21. The support portion 22 supports the speaker 3 by contacting the outer peripheral portion 3e of the speaker 3 at the front end surface 22e. The speaker 3 is arranged at a distance from the blocking wall portion 21 by a support portion 22 that protrudes in a cylindrical shape from the inner surface 21 i of the blocking wall portion 21. Thereby, interference with the vibrating diaphragm 31 and the obstruction | occlusion wall part 21 is prevented, and the definition of a sound is raised.

  The cap member 4 is attached to the support portion 22. The cap member 4 is fixed to the closing wall portion 21 with, for example, a screw 5 or the like. The cap member 4 is formed with a fixing portion 42 provided with a through hole 41 into which the screw 5 is inserted. On the other hand, the closing wall portion 21 is provided with a boss 23 into which the screw 5 is screwed so as to face the fixing portion 42. The boss 23 is disposed adjacent to the support portion 22.

  The cap member 4 covers the speaker 3 from the rear side. By mounting the cap member 4 on the rear side of the speaker 3, the intrusion of water into the speaker 3 is suppressed, and the leakage of the electrolyzed water generating device 1 is further suppressed.

  As shown in FIG. 2, the outer peripheral portion 3 e of the speaker 3 is sandwiched between the support portion 22 and the cap member 4. Thereby, the speaker 3 and the front cover 2 are firmly fixed. Further, since the speaker 3 and the front cover 2 can be fixed without using an adhesive or the like that requires a predetermined curing time, the time required for assembling the speaker 3 is shortened and the production efficiency of the electrolyzed water generating device 1 is increased. be able to. Further, the speaker 3 can be easily replaced.

  FIG. 4 shows a cross section of the front cover 2 and the speaker 3. In the electrolyzed water generating apparatus 1 of the present embodiment, the speaker 3 is attached to the front cover 2 with the diaphragm 31 facing the blocking wall 21 and is sandwiched between the support 22 and the cap member 4. 3 can be arranged at a distance from the bottom wall 7 of the apparatus main body 10 at a distance. Therefore, even if a water leak occurs in the apparatus for some reason, the speaker 3 is difficult to get wet with water, and the leakage can be suppressed.

  Further, it is possible to output a sound with a high sound volume with a sufficient volume without providing the bottom wall 7 with the through-hole or the like disclosed in Patent Document 1. Therefore, the lower part of the electrolyzed water generating apparatus 1 can be shielded under the bottom wall 7 and the leakage can be further suppressed.

  A signal line 34 is connected to the rear side of the speaker 3. The signal line 34 is provided to supply power to the coil 32.

  As shown in FIGS. 3 and 4, the support portion 22 is provided with an opening 22 c for allowing the signal line 34 to pass therethrough. In the present embodiment, the cap member 4 is provided with an insertion portion 43 for inserting the signal line 34 from the rear side to the front side of the speaker 3. The insertion part 43 is formed so as to protrude outside the cap member 4 so as to cover the signal line 34, while the signal line 34 is prevented from interfering with the outer peripheral part 3 e of the speaker 3 inside the insertion part 43, A space 43a for insertion from the rear side to the front side of the speaker 3 is formed.

  The opening 22c is provided on the lower side of the support portion 22 in the use state of the electrolyzed water generating device 1 described above. Therefore, even when water falls from above the support portion 22 due to some circumstances, it can be blocked by the support portion 22 and the cap member 4. Thereby, the infiltration of water into the speaker 3 is suppressed, and the leakage of the electrolyzed water generating device 1 is further suppressed.

  As already described, the front cover 2 is formed by injection molding. In this embodiment, since the support part 22 is provided in the inner surface 21i of the blocking wall part 21, if the resin which comprises the support part 22 shrink | contracts by cooling after shaping | molding, it will be "sink" on the outer surface 21o of the blocking wall part 21. There may be a micro-dent called "." When such a micro dent arises in the front cover 2, it becomes a cause which deteriorates the external appearance of the electrolyzed water generating apparatus 1. FIG.

  As shown in FIG. 1, in this embodiment, a blindfold sheet 6 is fixed to the outer surface 2 o of the front cover 2 in order to conceal the above-described minute recess. The blindfold sheet 6 is provided so as to cover at least a region corresponding to the support portion 22. In the present embodiment, the blindfold sheet 6 is provided from a region overlapping with the support portion 22 in a front view to a region where each operation button 13a is provided.

  Various printings such as the function of each operation button 13a and the brand name or product name of the electrolyzed water generating device 1 can be applied to the surface of the blindfold sheet 6. An adhesive 61 is applied to the back surface of the blindfold sheet 6. The blindfold sheet 6 is attached to the outer surface 2 o of the front cover 2 by the adhesive 61. The blindfold sheet 6 can improve the appearance of the electrolyzed water generating device 1.

  As shown in FIGS. 2 to 4, the support portion 22 includes a first support portion 25 on the inner peripheral side and a second support portion 26 on the outer peripheral side. A gap G is formed between the first support portion 25 and the second support portion 26 by providing a hollow portion 27. In the present embodiment, since the hollow portion 27 is provided between the first support portion 25 and the second support portion 26, the volume of the support portion 22 is reduced, and the above-described minute depression is generated in the front cover 2. This can be effectively suppressed, and the appearance of the electrolyzed water generating apparatus 1 can be further improved.

  The first support portion 25 contacts the front surface of the outer peripheral portion 3 e of the speaker 3. The second support portion 26 has a protruding portion 26 a that partially protrudes toward the cap member 4. The protruding portion 26 a contacts the side surface of the outer peripheral portion 3 e of the speaker 3. The speaker 3 is guided and positioned by the protruding portion 26a. The hollow portion 27 is appropriately provided with a connecting portion 28 that connects the first support portion 25 and the second support portion 26. The first support part 25 and the second support part 26 are reinforced by the connecting part 28.

  FIG. 5 shows the configuration of the cap member 4. The cap member 4 has a first contact surface 45 and a second contact surface 46. The first contact surface 45 is in contact with the rear surface of the outer peripheral portion 3 e of the speaker 3. The first contact surface 45 sandwiches the outer peripheral portion 3 e of the speaker 3 with the first support portion 25. The second contact surface 46 contacts the tip surface of the second support portion 26. When the second contact surface 46 and the second support portion 26 are in contact with each other, the intrusion of water into the speaker 3 is further suppressed. Further, the cap member 4 is formed with a recess 47 corresponding to the protruding portion 26a. The cap member 4 is easily positioned with respect to the support portion 22 by fitting the protruding portion 26a and the concave portion 47 together.

  FIG. 6 shows an internal configuration of the electrolyzed water generating apparatus 1. The electrolyzed water generating apparatus 1 includes a water purification cartridge 81 that purifies tap water, an electrolysis tank 82 that electrolyzes water purified by the water purification cartridge 81, and a flow path switching valve that switches a flow path upstream and downstream of the electrolysis tank 82. 83a and 83b, and a control unit 84 that controls the electrolyzed water generating apparatus 1 are provided.

  The water purification cartridge 81 is configured to be detachable from the device main body 10. The water purified by the water purification cartridge 81 is supplied to the electrolytic cell 82 via the first pipe 85, the first sub pipe 85a, and the second sub pipe 85b.

  The electrolytic cell 82 has an anode chamber 82b and a cathode chamber 82c separated by a diaphragm 82a. The diaphragm 82 a is an ion exchange membrane that allows ions to pass through the electrolytic cell 82. When a DC voltage is applied between the anode plate 82d provided in the anode chamber 82b and the cathode plate 82e provided in the cathode chamber 82c, electrolytic hydrogen water in which hydrogen is dissolved in the cathode chamber 82c by electrolysis is obtained. Acidic water is generated in the anode chamber 82b. The DC voltage applied between the anode plate 82d and the cathode plate 82e is controlled by the control unit 84, for example. The electrolytic hydrogen water generated in the cathode chamber 82 c is sent out through the second pipe 86. On the other hand, the acidic water generated in the anode chamber 82 b is sent out through the third pipe 87.

  The control unit 84 controls each unit. For example, the control unit 84 controls the polarities of the electrode plates 82d and 82e and the operations of the flow path switching valves 83a and 83b. Thereby, the operation mode of the electrolyzed water generating apparatus 1 is selected from the electrolyzed hydrogen water generating mode for sending electrolyzed hydrogen water from the second pipe 86, the acidic water generating mode for sending acidic water from the second pipe 86, or the second pipe 86. It can be switched to the purified water generation mode for sending purified water. In which mode the electrolyzed water generating apparatus 1 is operated is based on a signal input from the operation unit 13.

  Further, the control unit 84 controls the output sound of the speaker 3. For example, the control unit 84 causes the speaker 3 to output sound information such as a melody sound or a buzzer sound (peep sound) according to the operation mode of the electrolyzed water generating device 1. In addition, when the replacement time of the water purification cartridge 81 is approaching, the control unit 84 causes the speaker 3 to output sound information such as voice prompting the replacement of the water purification cartridge 81.

  According to the electrolyzed water generating apparatus 1 of the present embodiment having the above-described configuration, the front cover 2 disposed on the front side in the use state of the device main body and the speaker 3 including the diaphragm 31 that generates sound. Prepare. The front cover 2 blocks water scattered from the front of the electrolyzed water generating device 1 and suppresses leakage of the electrolyzed water generating device 1. In addition, the front cover 2 has a blocking wall portion 21 that is a region where a through-hole penetrating in the thickness direction is not provided, and the speaker 3 is disposed on the inner surface 21 i side of the blocking wall portion 21. Accordingly, the blocking wall portion 21 prevents water from entering the speaker 3 and further suppresses leakage of the electrolyzed water generating device 1.

  The speaker 3 is arranged so as to vibrate the blocking wall portion 21 and thus the front cover 2. Therefore, the air in front of the electrolyzed water generating device 1 vibrates due to the vibration of the front cover 2, and a sound with a sufficient volume and high definition can be output from the front surface.

  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 includes at least a front cover 2 disposed on the front side 11 of the device main body 10 in use and a speaker 3 having a diaphragm 31 that generates sound, and the front cover 2 has a thickness thereof. And the speaker 3 is arranged on the inner surface 21 i side of the blocking wall 21 so as to vibrate the blocking wall 21. That's fine. Therefore, the form of the electric device of the present invention is not limited to the electrolyzed water generating device 1, and is provided in the electric device that includes the speaker 3 and is required to have a certain level of waterproofness, for example, a sink and its surroundings. Widely applicable to electrical equipment.

1 Electrolyzed water generator (electric equipment)
2 Front cover 3 Speaker 3e Outer peripheral part 4 Cap member 6 Blindfold sheet 21 Blocking wall part 22 Support part 22c Opening 31 Diaphragm 34 Signal line

Claims (9)

An electrical device comprising a front cover arranged on the front side in the use state of the device body and a speaker having a diaphragm for generating sound,
The front cover has a blocking wall portion which is a region where a through hole penetrating in the thickness direction is not provided,
The electrical apparatus is characterized in that the speaker is arranged on the inner surface side of the blocking wall portion so as to vibrate the blocking wall portion.   The electric device according to claim 1, wherein the speaker is arranged with the diaphragm facing the front of the electric device.   The electric device according to claim 2, wherein a support portion for supporting the speaker is formed on an inner surface of the blocking wall portion so as to contact the outer peripheral portion of the speaker.   The electric device according to claim 3, wherein the support portion protrudes in a cylindrical shape from an inner surface of the blocking wall portion.   The electric device according to claim 3, further comprising a cap member attached to the support portion and covering the speaker from the rear side.   The electrical apparatus according to claim 5, wherein the outer peripheral portion of the speaker is sandwiched between the support portion and the cap member.   The electrical device according to claim 5 or 6, wherein the support portion or the cap member is provided with an opening through which a signal line connected to the speaker is passed.   The electrical device according to claim 7, wherein the opening is provided on a lower side of the support portion when the electrical device is in use.   The electrical device according to any one of claims 3 to 8, wherein a blindfold sheet is fixed to an outer surface of the front cover so as to cover at least a region corresponding to the support portion.

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