JP4416036B2 - Electric razor with treatment agent discharge mechanism - Google Patents

Description

The present invention relates to an electric shaver with a processing agent ejection mechanism.

Piezoelectric diaphragm type pumps use the fact that the deflection of a diaphragm plate formed by using a piezoelectric element plate and a metal plate increases or decreases due to expansion and contraction of the piezoelectric element plate, and the volume varies according to the deflection of the diaphragm plate. A pump chamber is provided in the pump body. The pump body is provided with a suction path and a discharge path that allow communication between the pump chamber and the outside of the pump body. The suction path includes a suction-side check valve that opens only in the fluid suction direction, and the discharge path has a fluid flow. Each having a discharge-side check valve that opens only in the discharge direction, so that when the piezoelectric element plate is expanded or contracted by energizing the piezoelectric element plate to increase or decrease the volume of the pump chamber, the external passage communicated with the suction path The working fluid flows into the pump chamber from the working fluid supply section via the suction path, and the working fluid is sent out from the discharge passage to the outside of the pump body. The above-mentioned piezoelectric diaphragm type pump is also suitably used as a processing agent discharge mechanism for an electric razor. In this case, a piezoelectric diaphragm type pump using a working fluid as a processing agent for skin application as a shaving lotion is used. Shaving while discharging the treatment agent is possible.

  However, in the above piezoelectric diaphragm type pump, when the working fluid contains a plurality of components, contamination inside the pump body due to the working fluid becomes a problem. Specifically, when a working fluid containing a solid substance such as powder in alcohol is used as the working fluid, if the working fluid remains inside the pump body, various components of the working fluid are components such as a check valve. In some cases, the component member may be melted. As a result, if the check valve is deteriorated or the opening / closing is not performed normally, the life of the pump itself is significantly reduced.

In order to solve the above problem, a means for cleaning the pump chamber other than when the pump is used has been proposed. For example, the external pressure inside the pump chamber is sucked into the pump chamber due to the pressure difference between the internal pressure and the external pressure in the pump chamber. There is a means for performing (see Patent Document 1). However, according to the above means, there is a problem that the outside air can be sucked only when the internal pressure of the pump chamber is low.
Japanese Patent Laid-Open No. 10-68386

  The present invention has been made in view of the above points, and a piezoelectric diaphragm type pump that can prevent a decrease in life by freely sucking a cleaning fluid into the pump body and removing residues to the outside. It is another object of the present invention to provide an electric shaver with a treatment agent discharge mechanism using the same.

In order to solve the above-mentioned problems, the present invention provides a pump body comprising a diaphragm plate formed by a piezoelectric element plate so as to be freely deformable by energization, and a pump chamber whose volume varies with the deformation of the diaphragm plate. A suction path and a discharge path for communicating between the chamber and the outside of the pump body are provided in the pump body, and a suction-side check valve that opens only in the fluid suction direction is provided in the suction path. This is an electric razor using a piezoelectric diaphragm type pump as a processing agent discharge mechanism, which has a discharge-side check valve that opens only in the direction and communicates a working fluid supply section that supplies working fluid to the outer end of the suction path. Te, piezoelectric diaphragm pump, as well as to communicate with the external side end portion of the suction passage of the cleaning fluid supply unit for supplying a cleaning fluid, feeding the cleaning fluid from the cleaning fluid supply unit into the pump body A driving unit to issue a cleaning fluid supply section provided in the pump body outside so as to be interposed between the inhalation route, to connect the conduit to the external end of the discharge passage, the conduit and the middle switching valve And the other end side is set as the discharge end of the cleaning fluid, and the discharge end of the working fluid is provided close to the blade portion of the electric razor body, The discharge end of the cleaning fluid is provided farther from the blade than the discharge end of the working fluid, and the working fluid is a treatment agent for skin application .

By doing this, the cleaning fluid can be freely sucked into the pump body to remove the residue, and the components can be returned to the initial state, thereby preventing a decrease in the overall pump capacity and a decrease in the service life. In addition, the pressure during the cleaning operation can be easily controlled by arbitrarily changing the external pressure by the drive unit. Further, the discharge locations of the working fluid and the cleaning fluid can be set to appropriate locations. Further, by using a pump that is capable of preventing a decrease in capacity and having a long life due to a cleaning operation as a drive source, it is possible to perform a comfortable shaving for a long time by always discharging a predetermined amount of the treatment agent for skin application.

  In addition, a pipe line is connected to the external end of the suction path, the pipe line is branched through a switching valve in the middle, one of the branches is connected to the working fluid supply part, and the other is connected to the cleaning fluid supply part It is also preferable to connect to. In this way, it is possible to easily switch between normal operation and cleaning operation simply by switching the valve.

  It is also preferable to form an ultrasonic cleaning mechanism that generates ultrasonic vibrations in the pump chamber in a state in which the cleaning fluid is sucked by providing the diaphragm plate so as to freely vibrate in the ultrasonic range. In this way, the residue adhering to the pump chamber and the surfaces of the suction and discharge check valves can be easily peeled off by ultrasonic vibration to improve the cleaning effect, and a separate device needs to be provided. And compact and low cost.

  It is also preferable to set the cleaning fluid and its flow rate so as to be turbulent in the pump chamber. By doing so, the cleaning fluid can be prevented from staying near the inner surface of the flow path in the pump chamber, and the cleaning effect is enhanced.

  It is also preferable that the external end of the discharge path of the pump main body and the cleaning fluid supply unit are communicated with each other through a circulation path with a cleaning fluid regenerating unit interposed therebetween. By doing so, it becomes possible to regenerate the cleaning fluid and return it to the cleaning fluid supply unit, and the amount of cleaning fluid required for cleaning can be greatly reduced, thereby reducing costs. .

  It is also preferable to form a mirror surface on at least one of a contact portion between the suction path and the suction side check valve and a contact portion between the discharge path and the discharge side check valve. By doing in this way, a residue becomes difficult to adhere in the peripheral part of these valve members, and the fall of the capability as a whole pump and life extension are realized.

In addition, it is also preferable that at least one root corner portion of the suction side check valve and the discharge side check valve is formed in a gentle substantially arc shape. By doing so, it is difficult for stress to concentrate at the corners of the corners and the life is improved, so that it is possible to prevent the pump as a whole from being deteriorated in performance and to have a long life.

  It is also preferable that the cleaning fluid is a cleaning gas. By doing in this way, the residue in a pump main body can be excluded favorably using cleaning gas.

  It is also preferred that the cleaning fluid is a cleaning liquid. By doing in this way, the residue in a pump main body can be excluded favorably using cleaning liquid.

As described above, in the first aspect of the invention, the cleaning fluid is freely sucked into the pump body to remove the residue, and the components are returned to the initial state, thereby reducing the capacity of the entire pump. The lifetime can be prevented from being reduced, and the pressure during the cleaning operation can be easily controlled by arbitrarily changing the external pressure by the drive unit. In addition, there is an effect that the discharge locations of the working fluid and the cleaning fluid can be set to appropriate locations. In addition, there is an effect that comfortable shaving can be performed for a long time by always discharging a predetermined amount of the processing agent by using a pump whose driving power is prevented from being lowered in performance and having a long life as a driving source.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 has an effect that the normal operation and the cleaning operation can be easily switched only by switching the valve.

Further, in the invention according to claim 3 , in addition to the effect of the invention according to claim 1 or 2, the residue adhering to the pump chamber or the surface of the suction and discharge check valves is peeled off by ultrasonic vibration. The cleaning effect can be improved by facilitating the cleaning, and there is no need to provide a new device separately, so that there is an effect that a reduction in size and cost can be achieved.

Further, in the invention according to claim 4 , in addition to the effect of the invention according to any one of claims 1 to 3 , it is possible to prevent the cleaning fluid from staying in the vicinity of the inner surface of the flow path in the pump chamber, and thus the cleaning effect. Is effective.

In addition, in the invention according to claim 5 , in addition to the effect of the invention according to any one of claims 1 to 4 , it becomes possible to regenerate the cleaning fluid and return it to the cleaning fluid supply unit. There is an effect that the amount of the cleaning fluid necessary for cleaning can be greatly reduced and the cost can be reduced.

In addition, in the invention according to claim 6 , in addition to the effect of the invention according to any one of claims 1 to 5 , it is difficult for the residue to adhere to the periphery of the valve member, and the capacity of the pump as a whole is improved. This has the effect of preventing the deterioration and extending the life.

In addition, in the invention according to claim 7 , in addition to the effect of the invention according to any one of claims 1 to 6 , it is difficult to concentrate stress on the root corner portion and the life is improved. This has the effect of preventing a reduction in capacity and extending the service life.

Further, in the invention according to claim 8, in addition to the effect of the invention according to any one of claims 1-7, favorably eliminates the residue in the pump body with the cleaning gas There is an effect.

In addition, in the invention according to claim 9 , in addition to the effect of the invention according to any one of claims 1 to 7 , the residue in the pump body can be favorably eliminated using the cleaning liquid. There is an effect.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. Note that the vertical direction used below is based on the vertical direction in the figure. FIGS. 13A and 13B show an example of a piezoelectric diaphragm pump in the embodiment of the present invention. The basic configuration of the piezoelectric diaphragm type pump of this example is the same as that described in the prior art, but in this example, as shown in the figure, a pair of paths 2a and 2b are provided so as to penetrate vertically. A casing portion provided with a pipe portion 2, a sheet-like valve portion 3 in which a pair of valves 3a and 3b are integrally formed via a slit, and a pair of through-holes 4a and 4b penetrating vertically. 4, a ring-shaped elastic body 5, a diaphragm plate 6 formed in a disk shape with a piezoelectric element plate 8 and a metal plate 9, and a diaphragm pressing portion 7 having a bottomed cylindrical shape opened downward, in order from the bottom The pump body 1 is formed by assembling.

  The outer edge of the diaphragm plate 6 is sandwiched between the housing portion 4 and the diaphragm pressing portion 7, and the elastic body 5 is further interposed between the diaphragm plate 6 and the housing portion 4 so that the inside of the pump main body 1. It is elastically supported by. A space 10 is formed between the diaphragm plate 6 and the diaphragm pressing portion 7 and other than the clamping portion, and the diaphragm plate 6 can be deformed so as to bend upward in the space 10. Further, a space is also formed between the diaphragm plate 6 and the housing portion 4, and this space is the pump chamber 11 of this example. The valve portion 3 is sandwiched between the housing portion 4 and the pipe portion 2, and in this state, the through hole 4 a of the housing portion 4 and the path 2 a of the pipe portion 2 connect the valve 3 a of the valve portion 3. The through hole 4b of the housing part 4 and the path 2b of the pipe part 2 are continuously arranged in a straight line via the valve 3b of the valve part 3. The valve 3a is opened only upward to communicate the through hole 4a and the path 2a, and the valve 3b is opened only downward to communicate the through hole 4b and the path 2b. The suction path 12 of the present example is formed by the path 2a, the discharge path 13 of the present example is formed by the through hole 4b and the path 2b, and the suction side check valve of the present example in which the valve 3a is opened only in the discharge direction. 14, and the discharge side check valve 15 of this example that the valve 3 b opens only in the discharge direction is formed.

  Electrodes are formed on the upper and lower surfaces of the disk-shaped piezoelectric element plate 8, and electric wires (not shown) for supplying current are connected to the electrodes. The piezoelectric element plate 8 is previously polarized in the thickness direction, and when an electric field is generated between the electrodes by supplying current, the direction of the electric field (in the direction of the arrow in the figure) as shown in FIG. Is the same direction as the polarization direction of the piezoelectric element plate 8, the piezoelectric element plate 8 is deformed so as to extend in the thickness direction and contract in the radial direction. 15B, when the direction of the electric field (in the direction of the arrow in the figure) is opposite to the direction of polarization of the piezoelectric element plate 8, the piezoelectric element plate 8 contracts in the thickness direction and has a diameter. Deforms to extend in the direction. On the other hand, since the metal plate 9 does not expand and contract, the deflection amount of the diaphragm plate 6 as a whole is changed in accordance with energization to the piezoelectric element plate 8 due to the difference in expansion and contraction amount.

  Since the pump chamber 11 is formed so as to be surrounded by the diaphragm plate 6 and the casing 4, the volume varies with the deformation of the diaphragm plate 6 in response to the energization. FIG. 16A shows the initial state, but if the volume of the pump chamber 11 increases as the amount of deflection of the diaphragm plate 6 increases as shown in FIG. 16B, the suction side check valve 14 opens and The discharge side check valve 15 is closed, and fluid is sucked into the pump chamber 11 from the outside through the suction path 12, and conversely, as the deflection amount of the diaphragm plate 6 decreases as shown in FIG. When the volume of the pump chamber 11 decreases, the suction side check valve 14 closes and the discharge side check valve 15 opens, and fluid is discharged from the pump chamber 11 through the suction path 12 to the outside. Accordingly, as shown in FIG. 15A, when the applied voltage is alternately switched between VH and VL and the above deformation of the diaphragm plate 6 is repeatedly generated, fluid is continuously sent from the suction path 12 side to the discharge path 13 side. be able to.

  In FIG. 14, the diaphragm pressing portion 7 is not provided to support the diaphragm plate 6, but a ring-shaped elastic support 5 ′ that elastically supports the diaphragm plate 6 by sandwiching the diaphragm plate 6 between its inner peripheral portions. Although the case where it uses instead of the elastic body 5 is shown, it is the same as a drive type of a pump also in this case.

  The outer end portions 12a and 13a of the suction passage 12 and the discharge passage 13 (that is, the outer end portions of the passage 2a and the passage 2b of the pipe portion 2) each serve as a pipe connection portion to the outside. As shown in the figure, a pipe line 16 is connected to the outer side end portion 12 a of the suction path 12. The pipe line 16 is bifurcated in the middle through the switching valve 17, and one branch pipe line 16 a is connected to the working fluid tank 19 which is the working fluid supply unit 18 of this example, and the other branch pipe is placed. The path 16b is connected to a cleaning gas tank 21 which is the cleaning fluid supply unit 20 of this example. A working fluid 50 is stored in the working fluid tank 19. A cleaning gas 52 is stored in the cleaning gas tank 21, and this cleaning gas 52 is the cleaning fluid 51 of this example. Further, one end side of the pipe line 22 is connected to the external side end portion 13 a of the discharge path 13, and the other end side is used as the discharge end 25 of the working fluid 50 and the cleaning gas 52.

  In this example, the working fluid 50 is a liquid containing a plurality of components, for example, alcohol containing solids such as powder. When the switching valve 17 is switched so that the working fluid tank 19 and the outer end 12a of the suction path 12 communicate with each other, and the volume of the pump chamber 11 is changed with the deformation of the diaphragm plate 6 as described above, the working fluid is changed. The working fluid 50 stored in the tank 19 is sent from the suction path 12 side to the discharge path 13 side through the pump chamber 11 and continuously discharged from the discharge end 25 of the pipe line 22. This is the operation during normal operation. In this case, when the working fluid 50 remains in the pump body 1, the components of the working fluid 50 adhere to components such as the suction-side check valve 14 and the discharge-side check valve 15, and in some cases, dissolve them. If the suction-side check valve 14 and the discharge-side check valve 15 are not normally opened or closed, the life of the pump itself may be significantly reduced.

  Therefore, in this example, the cleaning operation is performed in addition to the normal operation so that the residue in the pump body 1 can be discharged to the outside. Specifically, after switching the switching valve 17 so that the cleaning gas tank 21 and the external side end 12a of the suction path 12 communicate with each other, the pump chamber 11 is accompanied with the deformation of the diaphragm plate 6 as in the normal operation. What is necessary is just to change the volume of. As a result, the cleaning gas 52 stored in the cleaning gas tank 21 is sent out from the suction path 12 side to the discharge path 13 side via the pump chamber 11 and discharged from the discharge end 25 of the pipe line 22 to the outside. Continue to be. At this time, the residue in the pump body 1 is removed and discharged to the outside together with the cleaning gas 52, and the constituent members such as the suction side check valve 14 and the discharge side check valve 15 are held in the initial state, Since the operation is stabilized and deterioration is prevented, it is possible to prevent the pump itself from being lowered in performance and to improve the service life. Since the cleaning gas 52 is used as a drive source for introducing the cleaning gas 52 from the cleaning gas tank 21 into the pump body 1, the volume variation of the pump chamber 11 accompanying the deformation of the diaphragm plate 6 is used as described above. There is no need to install a separate drive source for object exclusion, and the piezoelectric diaphragm pump is compact and low cost.

  As the cleaning gas 52, it is preferable to use an inert gas such as nitrogen or helium. As a result, the residue of the working fluid 50 is eliminated, and at the same time, the components are not deteriorated by the influence of the cleaning gas 52 itself, and the inside of the pump body 1 is always maintained in the initial state, so that the entire pump is maintained. It is possible to prevent a decrease in capacity and increase the service life.

  Further, as a driving source at the time of the cleaning operation, instead of using the volume fluctuation of the pump chamber 11 due to the deformation of the diaphragm plate 6 as described above, the switching valve 17 and the cleaning gas tank 21 are connected as shown in FIG. A gas introduction device 23 such as a blower or a pump may be interposed in the middle of the branch pipe 16b to be made. The gas introduction device 23 forms a drive unit 24 for forcibly sending the cleaning gas 52 from the cleaning gas tank 21 into the pump body 1, and the cleaning gas tank 21 and the external end of the suction path 12. By switching the switching valve 17 so as to communicate with the section 12a and driving the gas introduction device 23, the cleaning gas 52 in the cleaning gas tank 21 is discharged from the suction path 12 side through the pump chamber 11. It is sent out to the path 13 side, and the inside of the pump body 1 is similarly cleaned.

  In this way, by providing the gas introduction device 23 that is the driving unit 24 outside the pump body 1 so as to be interposed between the cleaning gas tank 21 and the suction path 12, an external pressure by the gas introduction device 23 is provided. There is an advantage that the pressure at the time of the cleaning operation can be easily controlled by arbitrarily changing the above.

  Further, as shown in FIG. 3, the pipe line 22 connected to the external side end part 13 a of the discharge path 13 is branched in the middle through the switching valve 30, and the end part of the one branch pipe line 22 a is moved to the working fluid 50. As the discharge end 26, the end of the other branch line 22b may be the discharge end 27 of the cleaning gas 52, and a gas discharge device 28 such as a blower or a pump may be interposed in the middle of the branch line 22b. In this case, the gas discharge device 28 forms a drive unit 29 for sucking the cleaning gas 52 from the cleaning gas tank 21 into the pump body 1 during the cleaning operation, and the cleaning gas tank 21 and the outer end of the suction path 12 are arranged. The switching valve 17 is switched so as to communicate with 12a, and the switching valve 30 is switched so that the external end 13a of the discharge path 13 and the discharge end 27 of the cleaning gas 52 communicate with each other. By driving the device 28, the cleaning gas 52 in the cleaning gas tank 21 is sucked into the pump chamber 11 from the suction path 12 side and the same cleaning is performed in the pump body 1, and then the branch pipe The cleaning gas 52 is discharged from the discharge end 27 to the outside through 22b.

  And by connecting such a gas discharge device 28 to the discharge path 13 and providing it outside the pump body 1, it is possible to easily control the pressure during the cleaning operation by arbitrarily changing the external pressure by the gas discharge device 28. In addition, since a negative pressure is generated in the pump body 1, there is an advantage that the residue having a plurality of components can be discharged to the outside without being separated.

  In addition, when performing normal operation instead of the above-described cleaning operation, the switching valve 17 is switched so that the working fluid tank 19 and the outer end 12a of the suction path 12 communicate with each other, and the outer side of the discharge path 13 is set. After switching the switching valve 30 so that the end portion 13a and the discharge end 26 communicate with each other, the volume of the pump chamber 11 may be changed by deformation of the diaphragm plate 6.

  As shown in FIG. 4, the discharge end 27 of the pipe line 22 on the branch pipe line 22 a side is connected to a filter 31 that is a cleaning fluid regenerating unit 32, and the filter 31 and the cleaning gas tank 21 are connected. By providing the pipe line 31, it is possible to form a circulation path 33 that communicates the outer end portion 13 a of the discharge path 13 and the cleaning gas tank 21. Since the filter 31 is interposed in the circulation path 33, the cleaning gas 52 discharged from the pump body 1 together with the residue by cleaning is regenerated by the filter 31, and then returned to the cleaning gas tank 21 to be reused. By using this, the amount of the cleaning gas 52 required for the cleaning operation can be greatly reduced to reduce the cost.

  Further, in order to perform the cleaning in the pump body 1 more effectively, it is also preferable to generate ultrasonic vibration in the pump chamber 11 as shown in FIG. Specifically, with the cleaning gas 52 introduced into the pump chamber 11 and replaced with the working fluid 50, the piezoelectric element plate 8 is driven in an ultrasonic region of 20 kHz or more to vibrate the diaphragm plate 6, It is possible to enhance the cleaning effect by facilitating peeling off the residue adhered to the inside of the pump chamber 11 and the surfaces of the suction and discharge side check valves 14 and 15 by the slight vibration in the sound wave region. After the generation of the ultrasonic vibration, the cleaning gas 52 in the pump chamber 11 is produced outside. In this case, since the diaphragm plate 6 is provided so as to freely vibrate in the ultrasonic region, an ultrasonic cleaning mechanism that generates ultrasonic vibrations in the pump chamber 11 while the cleaning gas 52 is inhaled is formed. In order to generate the sonic vibration, it is not necessary to add another device outside.

  Further, in order to perform the cleaning in the pump body 1 more effectively, the cleaning gas 52 introduced into the pump chamber 11 during the cleaning operation is set to a sufficiently large Reynolds number so that the gas becomes turbulent. It is also suitable. Since the Reynolds number is proportional to the pipe width of the cleaning site, the flow velocity and viscosity of the fluid, and inversely proportional to the density of the fluid, means such as using a high viscosity as the cleaning gas 52 or increasing the flow velocity. Thus, a large value can be set. When the cleaning gas 52 is a laminar flow, a boundary layer develops near the inner surface of the flow channel in the pump body 1 and a stagnation point is generated, whereas when it is a turbulent flow, near the inner surface of the flow channel. Separation of the boundary layer occurs and the retention of the cleaning gas 52 is prevented. Therefore, by setting the property of the cleaning gas 52 and the flow rate thereof to be turbulent in the pump chamber 11 as described above, the cleaning gas 52 can be prevented from staying in the vicinity of the inner surface of the flow path, and the cleaning effect can be prevented. Will increase.

  Further, in order to perform the cleaning inside the pump body 1 more effectively, the suction side check valve 41 is used by the valve fixing mechanism 41 as shown in FIG. 6 while the cleaning gas 52 is sucked into the pump chamber 11. It is also preferable to close 14 or close the discharge-side check valve 15 by the valve fixing mechanism 42 as shown in FIG. For example, when the suction side check valve 14 is fixed in the closed state, if the volume of the pump chamber 11 is changed by deformation of the diaphragm plate 6, the pressure fluctuation generated in the cleaning gas 52 in the pump chamber 11 is fixed. Therefore, both the front and back surfaces of the discharge side check valve 15 can be efficiently cleaned. In addition, when the discharge side check valve 15 is fixed in the closed state, both the front and back surfaces of the suction side check valve 14 can be efficiently washed by the volume variation of the pump chamber 11.

  Further, in order to prevent the residue of the working fluid 50 from adhering in the pump body 1, for example, as shown in FIG. 8, a mirror surface 35 is provided at the contact portion between the suction path 12 and the suction side check valve 14. It is also suitable to form. As a result, the flow resistance and the pipe friction are reduced in the peripheral portion of the suction side check valve 14, so that the residue of the working fluid 50 is less likely to adhere to the periphery of the suction side check valve 14. And since the operation | movement in a valve part is stabilized and deterioration is also prevented, the fall of a capability and long life are implement | achieved as the whole pump. It should be noted that the same mirror surface 35 may be formed at the contact portion between the discharge path 13 and the discharge side check valve 15 or may be formed on both the suction side and the discharge side. .

  Further, in order to further prevent deterioration at the valve portion, for example, the root corner portion 36 of the suction side check valve 14 is not formed at a substantially right angle as shown in FIG. It is also preferable to form a gentle substantially arc shape as shown in FIG. If the root corner portion 36 is substantially perpendicular, stress concentrates on the root corner portion 36 when the suction-side check valve 14 is opened and closed, whereas stress is concentrated by making the root corner portion 36 substantially arc-shaped. As a result, the life of the suction side check valve 14 is improved, and the pump as a whole can be prevented from lowering its performance and extending its life. It is what is done. The stress relief structure as described above can be applied even if the suction side check valve 14 is of another form, and the valve element 37 is replaced with a pair of valves as shown in FIGS. In the structure sandwiched between the pressers 38, 38, the root corner portion 36 formed at the contact portion between the valve element 37 and the valve presser 38 should be substantially perpendicular as shown in FIGS. 10 (a) and 10 (b). When the valve body 37 is opened and closed, stress concentrates on the root corner portion 36, while the valve body 37 has a substantially arc shape as shown in FIGS. 10 (c) and 10 (d). In the same manner, stress can be prevented from being concentrated by forming the base as wide as the base side. Of course, the same structure may be formed on the discharge side check valve 15 side, or on both sides of the suction side check valve 14 and the discharge side check valve 15.

  Here, the configuration of the piezoelectric diaphragm type pump in the case where the cleaning fluid 51 is the cleaning gas 52 has been described above. However, the cleaning fluid 51 is not limited to gas but may be liquid. Absent. In this case, the cleaning fluid supply unit 20 includes a cleaning liquid tank (not shown) that stores cleaning liquid (not shown), and the pump main body 1 has the same configuration as that described above. Cleaning can be performed by introducing a cleaning liquid. As the cleaning liquid, for example, inert water that is a non-erodible liquid is used. This eliminates the residue of the working fluid 50 and, at the same time, does not deteriorate the constituent members due to the influence of the cleaning liquid itself, so that the inside of the pump body 1 can be maintained in the initial state. Thus, it is possible to prevent the deterioration of the capacity and to increase the service life.

  FIG. 11C shows an electric shaver in which the treatment agent discharge mechanism 60 is configured using the piezoelectric diaphragm type pump described above with reference to FIG. In this, the working fluid 50 is a treatment agent 61 for skin application in which a shaving lotion is used, the working fluid tank 19 stores the treating agent 61, and the discharge end 26 of the working fluid 50 is treated. A discharge end 63 of the agent 61 is formed. The discharge end 63 is provided close to the blade 71 provided at the upper end of the electric razor main body 70, and the treatment agent 61 is applied from the discharge end 63 when the electric razor is used by driving a piezoelectric diaphragm type pump. ing. Then, by driving the gas introducing device 23 in a state where the cleaning gas tank 21 and the discharge end 27 are in communication with each other, the cleaning gas 52 is introduced into the pump body 1 and cleaned, and then discharged from the discharge end 27. Is.

  As shown in FIGS. 11A and 11B, the volume variation of the pump chamber 11 is used as a drive source for introducing the cleaning gas 52 into the pump body 1 as described above with reference to FIG. Alternatively, the gas discharge device 28 may be provided as described above with reference to FIG. In addition, a cleaning liquid may be used instead of the cleaning gas 52, and it is a matter of course that any of the configurations described above for the piezoelectric diaphragm type pump may be used in combination. In addition, in FIG. 12, the further detailed structure of the electric shaver shown to Fig.11 (a) is shown.

  And, by providing the processing agent discharge mechanism 60 configured using these piezoelectric diaphragm type pumps, the processing agent 61 is always kept constant by using a pump that realizes prevention of deterioration in performance and long life due to the cleaning operation as a driving source. It is possible to perform a comfortable shaving for a long time by discharging only the amount.

It is explanatory drawing which shows the 2nd structure of the piezoelectric diaphragm type pump of an example in embodiment of this invention. It is explanatory drawing which shows the 1st structure of a piezoelectric diaphragm type pump same as the above. It is explanatory drawing which shows the 3rd structure of a piezoelectric diaphragm type pump same as the above. It is explanatory drawing which shows the case where the piezoelectric diaphragm type pump same as the above is made into a circulation type. It is explanatory drawing which shows the method of generating an ultrasonic vibration same as the above. It is explanatory drawing which shows the valve fixing mechanism of the suction side same as the above. It is explanatory drawing which shows the valve fixing mechanism of the discharge side same as the above. It is explanatory drawing at the time of forming a mirror surface in the suction side same as the above, (a) has shown the valve opening state, (b) has shown the valve closing state. It is explanatory drawing of the stress relaxation structure formed in the suction side check valve same as the above, (a) has shown the state before formation, (b) has shown the state after formation. It is explanatory drawing of the stress relaxation structure formed in the suction side check valve of another form same as the above, (a) is a perspective state before formation, (b) is a side view state before formation, (c) is after formation. A perspective view, (d) is a side view after formation. It is explanatory drawing of the electric shaver with a processing agent discharge mechanism using a piezoelectric diaphragm type pump same as the above, (a) shows the 1st form, (b) shows the 2nd form (c) showing the 3rd form. Yes. It is explanatory drawing which showed in more detail the structure of the piezoelectric diaphragm type pump shown to Fig.11 (a). The pump main body same as the above is shown, (a) is a disassembled perspective view, (b) is sectional drawing. It is a disassembled perspective view which shows the pump main body of another form same as the above. It is explanatory drawing of the drive principle of a diaphragm board, (a) is an applied voltage, (b) is a deformation | transformation at the time of the applied voltage VH of (a), (c) shows the deformation | transformation at the time of the applied voltage VL of (a). Yes. It is explanatory drawing of the drive principle of a piezoelectric diaphragm type | mold pump, (a) is an initial state, (b) is an inhalation state, (c) has shown the discharge state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pump main body 6 Diaphragm plate 8 Piezoelectric element plate 11 Pump chamber 12 Suction path 12a Outer end part 13 Discharge path 13a Outer end part 14 Suction side check valve 15 Discharge side check valve 16 Pipe line 17 Switching valve 18 Working fluid supply part DESCRIPTION OF SYMBOLS 19 Working fluid tank 20 Cleaning fluid supply part 21 Cleaning gas tank 22 Pipe line 23 Gas introduction apparatus 24 Drive part 25 Discharge end 26 Discharge end 28 Gas discharge apparatus 29 Drive part 30 Switching valve 32 Cleaning fluid reproduction | regeneration part 34 Circulation path 35 Mirror Surface 36 Root Corner 41 Valve Fixing Mechanism 42 Valve Fixing Mechanism 50 Operating Fluid 51 Cleaning Fluid 52 Cleaning Gas 60 Processing Agent Discharge Mechanism 61 Processing Agent

Claims (9)

The pump body includes a diaphragm plate formed by a piezoelectric element plate so as to be freely deformable by energization, and a pump chamber whose volume varies with deformation of the diaphragm plate, and communicates the pump chamber with the outside of the pump body. In addition, the discharge passage is provided in the pump body, the suction passage includes a suction-side check valve that opens only in the fluid suction direction, and the discharge passage includes a discharge-side check valve that opens only in the fluid discharge direction. An electric razor using a piezoelectric diaphragm type pump, which is formed by connecting a working fluid supply part for supplying a working fluid to the outer end of the suction path, as a processing agent discharge mechanism, and the piezoelectric diaphragm type pump is used for cleaning A cleaning fluid supply section for supplying a fluid is communicated with the outer end of the suction path, and a driving section for sending the cleaning fluid from the cleaning fluid supply section into the pump body is connected to the cleaning fluid supply section. Provided in the pump body outside so as to be interposed between the introduction path, is connected a pipe to the external end of the discharge passage, it is branched through the switching valve the conduit on its way, a branched end side The discharge end of the working fluid is set as the discharge end of the working fluid, the discharge end of the cleaning fluid is set as the discharge end of the cleaning fluid, and the discharge end of the working fluid is provided close to the blade portion of the electric razor body. An electric razor with a treatment agent discharge mechanism, characterized in that the treatment fluid is provided as a treatment agent for skin application, and is provided farther from the blade than the edge. Connect a pipe line to the external end of the suction path, branch the pipe through a switching valve in the middle, connect one branch to the working fluid supply, and connect the other to the cleaning fluid supply The electric shaver with a processing agent discharge mechanism according to claim 1, wherein The ultrasonic cleaning mechanism for generating ultrasonic vibration in the pump chamber in a state where the cleaning fluid is sucked is formed by providing the diaphragm plate so as to freely vibrate in an ultrasonic region. Electric shaver with treatment agent discharge mechanism. The electric shaver with a processing agent discharge mechanism according to any one of claims 1 to 3, wherein the cleaning fluid and the flow velocity thereof are set to be turbulent in the pump chamber. The process according to any one of claims 1 to 4, wherein the external end of the discharge path of the pump body and the cleaning fluid supply section are communicated by a circulation path with a cleaning fluid regenerating section interposed therebetween. Electric razor with agent discharge mechanism. 6. A mirror surface is formed on at least one of a contact portion between the suction path and the suction side check valve and a contact portion between the discharge path and the discharge side check valve. The electric shaver with the processing agent discharge mechanism of description. 7. The electricity with a processing agent discharge mechanism according to claim 1, wherein a base corner portion of at least one of the suction side check valve and the discharge side check valve is formed in a gentle substantially arc shape. Razor. Processing agent ejection mechanism with electric shaver according to claim 1, wherein the washing Kiyoshiyo fluid is a cleaning gas. The electric shaver with a processing agent discharge mechanism according to any one of claims 1 to 7, wherein the cleaning fluid is a cleaning liquid.

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