JP7109212B2 - Small electrical device charger - Google Patents

Description

TECHNICAL FIELD The present invention relates to a charger for charging a secondary battery built in a small electrical device such as an electric shaver or a mobile phone.

A charger of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. 2002-200013. In Patent Document 1, a terminal pin (power receiving terminal) is provided on the back of an electric shaver (small electric device), and a contact fitting (power supply terminal) is provided on the wall surface of the charger facing the terminal pin of the electric shaver in the attached state. is provided. The contact fitting includes a mounting portion fixed to the charger main body, a horizontal portion, a contact portion that contacts the terminal pin, and an elastically deformable displacement portion that connects the horizontal portion and the contact portion. When the contact portion and the terminal pin are in contact with each other, the displacement portion is elastically deformed, and an urging force is generated to press the contact portion against the terminal pin.

The charger is provided with a main body detection switch (detection switch) that can be retracted from the wall surface below the contact fitting. It is detected that an electric shaver is attached to the device. The charger is adapted to perform the charging operation while the shaver is being detected. Although the specific configuration of the main body detection switch is not specified, since the switch is turned on by pushing it with an electric shaver, it is possible to hold the position at the advanced position when the electric shaver is not attached. It can be inferred that the detection member is biased by a biasing member or the like.

Japanese Unexamined Patent Application Publication No. 2008-18128

In the charger described in Patent Document 1, the contact fitting and the main body detection switch are provided on the same wall surface of the charger. Both of the biasing forces act on the same peripheral surface in the circumferential direction of the electric shaver, and the total force of these two types of biasing forces always keeps the electric shaver away from the wall surface on which the contact fittings and body detection switch are provided. A large force is acting in the direction of floating away. Therefore, even if a small external force acts on the charger or the electric shaver, the electric shaver tends to separate from the wall surface, and the contact state between the terminal pins and the contact metal fittings is not properly maintained, resulting in unstable charging of the electric shaver. easy to become. In addition, there is a risk that the electric shaver will not be detected by the body detection switch, and the charging operation will stop. In addition, in the charger disclosed in Patent Document 1, a dedicated holding structure made up of a magnet and a metal plate is provided to prevent the electric shaver from floating and separating against the urging force. There is a disadvantage of inviting an increase in cost.

The present invention has been made to solve the problems of the conventional charger as described above. To provide a charger capable of stably charging a small electric device while suppressing manufacturing cost by holding the small electric device attached to a mounting part in an appropriate charging position. do.

The charger for a small electrical device of the present invention comprises a charger main body 18 having a recessed mounting portion 21 that allows insertion and mounting of a small electrical device from above, and an inner peripheral surface of the mounting portion 21 facing the small electrical device. A pair of power supply terminals 71 provided to supply a charging current to the power receiving terminals 15 of the small electrical device, and a pair of power supply terminals 71 provided on the inner peripheral surface of the mounting portion 21 so that the small electrical device can be properly connected to the mounting portion 21 . It comprises a detection switch 55 for detecting that it is mounted in the charging position, and urging members 77 and 58 for urging the feed terminal 71 and the detection switch 55 to advance toward the peripheral surface of the small electric device in the mounted state. . The power supply terminal 71 and the detection switch 55 are arranged on a plurality of peripheral surfaces, ie, the front and rear peripheral surfaces and the left and right peripheral surfaces of the inner peripheral surface surrounding the mounting portion 21, and are arranged on different peripheral surfaces of the small electrical device in the mounted state. It is characterized in that it is urged forward by urging members 77 and 58 toward it.

At least three of the front and rear peripheral surfaces and the left and right peripheral surfaces of the small electrical device in the attached state face the three wall surfaces 50 , 51 , 52 of the inner peripheral surface surrounding the attachment portion 21 . A power supply terminal 71 is provided on each of the wall surfaces 51 and 52 of the mounting portion 21 facing each other with the small electric device therebetween, and a detection switch 55 is provided on the remaining wall surface 50 .

The detection switch 55 includes a contact body 56 that is guided to move forward and backward on the wall surface 50 of the mounting portion 21, a switch body 57 that is turned on and off by the contact body 56, and a small electric device mounted on the mounting portion 21. An urging member 58 is provided to urge the abutment body 56 to advance. The contact portion of the contact body 56 that contacts the small electric device is composed of a plurality of ribs 68 extending in the insertion direction of the small electric device.

It is preferable that the total force of the biasing member 77 biasing each power supply terminal 71 to advance is set larger than the biasing force of the biasing member 58 biasing the detection switch 55 to advance.

The power supply terminal 71 has a terminal portion 72 which is guided by the wall surfaces 51 and 52 of the mounting portion 21 so as to be retractable. The biasing member 77 is biased to advance. The terminal portion 72 is provided with two ridge portions 80 intersecting with the insertion mounting direction of the small electric device and a trough portion 81 formed between the ridge portions 80 and 80 . The peaks 80 are configured so that the power receiving terminal 15 engages with the valley 81 over one of the peaks 80 .

An annular peak portion 80 and a valley portion 81 surrounded by the peak portion 80 are formed in the terminal portion 72 . It should be noted that the term "annulus" as used herein is a concept including a circular ring, a triangular ring, a square ring, or a polygonal ring.

A ring-shaped mountain portion 80 and a mortar-shaped valley portion 81 surrounded by the mountain portion 80 are formed in the terminal portion 72 .

The contact portion 16 at the tip of the power receiving terminal 15 is formed in a spherical shape, and the spherical contact portion 16 is configured to engage with the trough portion 81 in the shape of a mortar.

Each of the outer slope 82 and the inner slope 83 of the peak portion 80 is configured with a tapered surface. It is preferable that the downward inclination angle of the outer slope 82 is set larger than the downward inclination angle of the inner slope 83 with respect to the plane passing through the apex of the peak portion 80 .

The terminal portion 72 is provided with a tubular portion 84 that is continuous with the bottom portion of the outer slope 82 of the peak portion 80 .

The biasing member 77 of the power supply terminal 71 is formed of a compression coil spring, and biases the terminal portion 72 toward the small electric device while one end of the compression coil spring 77 is accommodated in the cylindrical portion 84 .

An annular valley-shaped receiving recess 86 is formed on the inner surface side of the peak portion 80 , and the end turn portion of the compression coil spring 77 accommodated in the cylindrical portion 84 is received at the bottom of the receiving recess 86 .

The power supply terminal 71 integrally includes a terminal portion 72 , a fixing portion 73 fixed to the charger main body 18 , and an arm portion 74 connecting the terminal portion 72 and the fixing portion 73 . The arm portion 74 is formed to be elastically deformable, and supports the terminal portion 72 so as to be swingable in the extension/retraction direction.

The fixing portion 73 is formed of a plate-like body, and the fixing portion 73 is fixed to the charger main body 18 with a fixture 91 penetrating through the plate surface. The axial direction of the fixture 91 and the extension/retraction direction of the terminal portion 72 are configured to be perpendicular to each other.

The arm portion 74 is formed of a plate-like body, and the fixing portion 73 and the arm portion 74 are integrally formed into a bent plate shape. An internal angle θ between the fixed portion 73 and the arm portion 74 is preferably set to an obtuse angle.

A drain port 94 is provided in the bottom wall 49 of the mounting part 21, and a drain tray 95 for receiving water flowing down from the drain port 94 is provided in the charger main body 18.例文帳に追加The drainage tray 95 is detachably attached to a tray attachment portion 98 having a tray opening 97 opened on the peripheral side surface of the charger main body 18 . The attachment/detachment direction of the drainage tray 95 attached/detached through the tray opening 97 is preferably set parallel to the mounting surface of the charger.

A connection plug 124 provided at one end of a power cord is inserted into a power receiving power socket 123 provided in the charger main body 18 for connection. The attachment/detachment direction of the drainage tray 95 and the insertion direction of the connection plug 124 are configured to be perpendicular to each other.

The insertion direction of the connection plug 124 is preferably set parallel to the mounting surface of the charger.

Assuming an imaginary line V passing through the center of the charger main body 18 in a plan view of the charger, the tray opening 97 is arranged in one area of the charger main body 18 divided by the imaginary line V, and the tray opening 97 is arranged in the other area. A power socket 123 is placed.

The power socket 123 is provided in the deep inside of a socket recess 125 formed in the charger main body 18 . The inner peripheral wall of the socket recess 125 is tapered toward the inner depth in the insertion direction of the connection plug 124 .

The small electric device attached to the attachment portion 21 is restricted from moving by three wall surfaces 50, 51, and 52 on the inner peripheral surface surrounding the attachment portion 21. As shown in FIG. In a plan view of the charger, the drain tray 95 is configured to be pulled out and separated in the direction opposite to the movement restriction direction of the small electrical equipment.

The drainage tray 95 is formed into a container shape having an open upper surface with a circumferential side wall 101 and a bottom wall 102 . A bottom wall 102 of the drain tray 95 facing the drain port 94 is recessed to form a dirt receiving concave portion 104 .

The dust receiving recess 104 is recessed in the bottom wall 102 of the drain tray 95 without coming into contact with the peripheral side wall 101 of the drain tray 95 . The curvature of the internal corner 105 sandwiched between the inner peripheral surface and the bottom surface of the dust receiving recess 104 is set smaller than the curvature of the internal corner 106 sandwiched between the inner surfaces of the peripheral side wall 101 and the bottom wall 102 of the drainage tray 95. is preferred.

The lower surface of the drainage tray 95 attached to the tray attachment portion 98 is received by a support wall 110 provided on the attachment portion 21 . The charger main body 18 is provided with a pressing body 111 for pressing and urging the drainage tray 95 against the support wall 110 .

The pressing body 111 includes a fixing portion 112 fixed to the charger main body 18, a pressing portion 113 in contact with the drainage tray 95, and an elastically deformable elastic arm 114 connecting the fixing portion 112 and the pressing portion 113. Prepare for unity. An engaging concave portion 120 is formed on the upper surface of the drain tray 95 so that the pressing portion 113 drops and engages when the tray 95 is at the mounting position.

The pressing portion 113 is formed in a band plate shape that curves downward toward the drainage tray 95 . Two elastic arms 114 are extended from the fixed part 112 and the tip of each elastic arm 114 is connected to the end of the pressing part 113 .

The fixed portion 112 is formed in an endless ring shape having a channel opening 115 in the center of the plate surface. The fixing portion 112 is fixed to the charger main body 18 in a state in which the drain port 94 of the bottom wall 49 faces the channel opening 115 .

A pair of elastic arms 114 and a pressing portion 113 are provided on the fixed portion 112 so as to face each other with the fixed portion 112 interposed therebetween.

The charger main body 18 is provided with a drain pipe 96 provided between the drain port 94 and the drain tray 95 for guiding the water drained from the drain port 94 to the drain tray 95, and fixed to the drain pipe 96. The part 112 is fixed.

The drainage cylinder 96 is formed in a stepped cylinder shape, and a circumferential fixing seat 116 is provided on the outer peripheral surface of the cylinder 96 . The fixing portion 112 of the pressing body 111 is fixed to the fixing seat 116 in a state in which the channel opening 115 of the pressing body 111 is fitted onto the drain tube 96 .

A small electric appliance is an electric razor comprising a main body 1 and a razor head 2 supported on the upper part of the main body 1 and having a cutting edge 3 arranged at the upper end of the razor head 2. - 特許庁The electric shaver is inserted and mounted in the mounting portion 21 in an inverted posture with the razor head 2 positioned on the lower side. The mounting portion 21 is provided with heating means for accelerating the drying of the razor head 2 . The bottom wall 49 of the mounting portion 21 is made of a highly flexible material, and is configured to have a raised wall 133 rising upward facing the front and/or back of the cutting blade portion 3 . The heating means includes a bottom wall 49 of the mounting portion 21 , a heater 128 for heating the bottom wall 49 and a heat transfer plate 134 for conducting heat to the raised wall 133 . The heat transfer plate 134 is configured to include a conduction plate 135 extending upward along the raised wall 133 and a heat receiving plate 136 connected to the lower end of the conduction plate 135 to receive heat from the heater 128 .

The conductive plate 135 is provided so as to face the rear surface of the protruding wall 133 with a slight gap or to be in close contact therewith.

The upper edge and vertically extending edge of the conductive plate 135 are inserted into the insertion grooves 140 provided on the rear surface of the raised wall 133 respectively.

The raised wall 133 rises upward in a crank shape in cross section, and forms a conductive plate 135 along the rear surface of the raised wall 133 .

The heat transfer plate 134 is fixed to the plate fixing seat 141 of the charger main body 18 .

The heating means has a metallic protection plate 129 between the bottom wall 49 and the heater 128, and the heat receiving plate 136 of the heat transfer plate 134 is brought into close contact with the plate surface of the protection plate 129. As shown in FIG.

In the charger for small electrical equipment of the present invention, the power supply terminal 71 and the detection switch 55 are arranged on a plurality of inner peripheral surfaces of the inner peripheral surface surrounding the attachment portion 21, i.e., the front and rear peripheral surfaces and the left and right peripheral surfaces. , the urging members 77 and 58 urge the small electric device to advance toward different peripheral surfaces. According to this configuration, since the biasing force of the biasing members 77 and 58 can be applied to the peripheral surface of the small electrical device from a plurality of directions, the small electrical device attached to the mounting portion 21 may inadvertently come into contact with the wall surface. can be prevented from floating away from the charging position. As described above, according to the present invention, it is possible to hold the small electrical device in an appropriate charging position and stably perform the charging operation. Moreover, there is no need to provide a dedicated holding structure, and an increase in the manufacturing cost of the charger can be suppressed.

At least three of the front and rear peripheral surfaces and the left and right peripheral surfaces of the peripheral surface of the small electrical device in the mounted state face the three wall surfaces 50, 51, and 52 of the inner peripheral surface surrounding the mounting portion 21, A power supply terminal 71 is provided on each of the wall surfaces 51 and 52 of the mounting portion 21 facing each other with the small electric device therebetween, and a detection switch 55 is provided on the remaining wall surface 50 . When the power supply terminals 71 and the detection switch 55 are arranged in this manner, the biasing force of the biasing member 77 of the pair of power supply terminals 71 acting in the opposing directions activates the small electric device through the power receiving terminal 15 . It is possible to reliably prevent the small electric device from floating away from the wall surface by pinching and holding the position and by the biasing force of the biasing member 58 of the detection switch 55 and the external force acting on the charger.

The detection switch 55 is configured to include a contact body 56, a switch body 57, an urging member 58, and the like, and the contact portion of the contact body 56 that contacts the small electrical device is oriented in the insertion direction of the small electrical device. When configured with a plurality of extending ribs 68, the contact area between the small electric device and the contact portion can be made as small as possible, and damage due to friction between the small electric device and the contact portion during attachment and detachment can be suppressed. . In addition, even when a small electric appliance that has been washed with water is attached to the attachment portion 21, the water adhering to the contact member 56 can be caused to flow downward through the adjacent ribs 68, 68. The safety of the charger can be improved by preventing the detection switch 55 from malfunctioning due to accumulation of water around it. If a plurality of ribs 68 are formed in a direction crossing the insertion direction of the small electrical device, the small electrical device may be caught by the ribs 68 when the small electrical device is attached or detached, and the detection switch 55 may be damaged.

If the total force of the biasing member 77 that biases each power supply terminal 71 to advance is set larger than the biasing force of the biasing member 58 that biases the detection switch 55 to advance, a larger biasing force can be obtained. By sandwiching the small electrical device, it is possible to more effectively prevent the small electrical device from floating away from the wall surface.

A terminal portion 72 of the power supply terminal 71 is provided with two ridge portions 80 intersecting with the insertion mounting direction of the small electric device and a trough portion 81 formed between the two ridge portions 80 and 80 to form a power receiving terminal. 15 can be configured to climb over one peak 80 and engage a valley 81 . According to this, it is possible to restrict the movement of the power supply terminal 71 in the engaging direction by the two peaks 80, so that the small electric device can be accurately held at an appropriate charging position. In addition, when the power receiving terminal 15 climbs over the ridge 80 and falls into the trough 81, it is possible to provide a sense of moderation, so that the user can surely recognize that the small electric device is mounted in the appropriate charging position. can.

When the terminal portion 72 is formed with the annular peak portion 80 and the valley portion 81 surrounded by the peak portion 80, movement of the power receiving terminal 15 not only in the engaging direction but also in the entire circumferential direction is restricted. It is possible to accurately position and hold the small electric device at a proper charging position. In addition, since the structural strength of the terminal portion 72 can be increased by forming the annular peak portion 80 on the terminal portion 72, the charging operation can be performed stably over a long period of time, contributing to the improvement of the reliability of the charger. .

When the peak portion 80 is formed in, for example, a triangular ring, a square ring, or a polygonal ring, when the power receiving terminal 15 is engaged with the terminal portion 72, it may get over the side portion or the corner portion. Moderation changes. Further, when the power receiving terminal 15 is separated from the terminal portion 72 , the separation operation force changes depending on whether the power receiving terminal 15 gets over the side portion or the corner portion. On the other hand, if the terminal portion 72 is formed with an annular peak portion 80 and a mortar-shaped valley portion 81 surrounded by the peak portion 80 as in the present invention, the power receiving terminal for the terminal portion 72 is formed. The same click feeling can be obtained and the terminal portion 72 and the power receiving terminal 15 can be separated with the same operating force regardless of the direction in which the power receiving terminal 15 is engaged or disengaged.

When the contact portion 16 at the tip of the power receiving terminal 15 formed in a spherical shape is engaged with the trough portion 81 in a mortar shape, the contact portion 16 and the trough portion 81 can be brought into circular line contact. . Therefore, both 15 and 81 can be accurately brought into contact with each other to reduce electrical resistance at the contact portion.

Each of the outer slope 82 and the inner slope 83 of the peak portion 80 is tapered, and the downward inclination angle of the outer slope 82 with respect to the plane passing through the apex of the peak portion 80 is larger than the downward inclination angle of the inner slope 83. can be set. According to this, when the contact portion 16 gets over the outer slope 82 and engages with the trough portion 81, the resistance to get over the contact portion 16 becomes relatively large. It can be clearly recognized that the small electric device is attached to the proper charging position. In addition, when the contact portion 16 is separated from the valley portion 81 by climbing over the inner slope 83, the resistance to climb over the contact portion 16 is relatively small, so that the separation operation force can be reduced, and the user can operate the small electric device with a light force. can be removed. The timing at which the contact portion 16 climbs over the ridge portion 80 at the time of engagement is during the mounting operation of the small electrical device on the mounting portion 21. Therefore, even if a relatively large resistance to climb over is generated, the force of the mounting operation will The contact portion 16 can be easily engaged with the valley portion 81 .

If the terminal portion 72 is provided with a cylindrical portion 84 that is continuous with the bottom portion of the outer slope 82 of the peak portion 80, the structural strength of the terminal portion 72 can be further increased, and the charging operation can be performed stably over a longer period of time. .

When one end of the compression coil spring 77, which is a biasing member of the power supply terminal 71, is accommodated in the cylindrical portion 84 and the terminal portion 72 is biased toward the small electric device, the compression coil spring 77 is moved by the cylindrical portion 84. can be regulated, the repulsive force of the compression coil spring 77 can be accurately received and the terminal portion 72 can be positively urged to advance. There is also an advantage that the compression coil spring 77 can be stably supported.

If the end turn portion of the compression coil spring 77 accommodated in the cylindrical portion 84 is received by the receiving concave portion 86 formed in the inner surface of the peak portion 80, the movement of the compression coil spring 77 can be more reliably performed. Since it can be regulated, the repulsive force of the compression coil spring 77 can be received more accurately, and the terminal portion 72 can be reliably urged to advance. There is also an advantage that the compression coil spring 77 can be supported more stably.

The power supply terminal 71 is integrally provided with a terminal portion 72, a fixed portion 73, and an arm portion 74 connecting the both 72 and 73. The arm portion 74 is elastically deformable, and the terminal portion 72 is output. It can be configured to be swingably supported in the backward direction. According to the power supply terminal 71, since the arm portion 74 can be used as the biasing member 77, there is no need to provide a separate member for generating a biasing force. can be reduced. Further, even when the biasing member 77 such as a compression coil spring is separately provided, the spring rate of the biasing member 77 can be reduced, and the assembling property of the power supply terminal 71 and the biasing member 77 can be improved.

If the axial direction of the fixing member 91 for fixing the fixing portion 73 to the charger body 18 is orthogonal to the extending/retracting direction of the terminal portion 72 , the terminal portion 72 may move forward and backward. As a result, the fixing member 73 tends to move in its extension direction, so that a force in the shearing direction acts on the fixing member 91 . As a result, the fixing part 73 is securely received by the fixture 91 and does not rattle, and the terminal part 72 can be moved forward and backward accurately. In addition, when the axial direction of the fixture 91 and the extension/retraction direction of the terminal section 72 are configured to be parallel, for example, if the fixture 91 is a screw, the terminal section 72 is moved forward and backward. Since a force along the tightening direction acts on the screw, the screw gradually loosens.

When the interior angle θ sandwiched between the fixed portion 73 integrally formed in the shape of a bent plate and the arm portion 74 is set to an obtuse angle, the total length of the arm portion 74 is formed longer than when the interior angle θ is set to a right angle. It is possible to reduce the amount of elastic deformation of the arm portion 74 that accompanies the extension and retraction movement of the terminal portion 72 . Therefore, it is possible to prevent fatigue failure of the arm portion 74 due to repeated elastic deformation. Also when the interior angle θ is set to an acute angle, the overall length of the arm portion 74 can be lengthened. prone to fatigue fracture.

A drain port 94 is provided in the bottom wall 49 of the mounting portion 21, a drain tray 95 is provided in the charger main body 18 to receive water flowing down from the drain port 94, and a tray opening 97 is provided on the peripheral side surface of the charger main body 18. The direction of attachment and detachment of the drainage tray 95 detachably attached to the tray attachment portion 98 can be set parallel to the mounting surface of the charger. According to such a drainage tray 95, the drainage tray 95 can be attached and detached without lifting the charger, and the water stored in the drainage tray 95 can be simply disposed of. Moreover, there is also an advantage that the drainage tray 95 can be attached and detached more smoothly than the case where the drainage tray 95 is attached and detached while being pulled up obliquely upward or pulled obliquely downward from the mounting surface.

If the drain tray 95 is attached/detached in a direction perpendicular to the insertion direction of the connection plug 124 connected to the power socket 123, the drain tray 95 may be separated while holding the power cord. However, it is possible to effectively prevent the inconvenience that the connection plug 124 comes off. Therefore, even when the drain tray 95 is full of water and it becomes necessary to separate the drain tray 95 during charging of the small electric device, it is possible to prevent the charging operation of the small electric device from being interrupted. For example, if the drain tray 95 is attached and detached and the connection plug 124 is inserted in the opposite direction, if the drain tray 95 is separated while holding the power cord, the connection plug 124 will come off and the charging operation will be performed. may stop.

If the direction of insertion of the connection plug 124 is set parallel to the mounting surface of the charger, then, similarly to the drain tray 95, the connection plug 124 is pulled up diagonally upward or downward diagonally with respect to the mounting surface. However, the connection plug 124 can be attached and detached more smoothly than when the drainage tray 95 is attached and detached.

Assuming an imaginary line V passing through the center of the charger main body 18 in a plan view of the charger, the tray opening 97 is arranged in one area of the charger main body 18 divided by the imaginary line V, and the tray opening 97 is arranged in the other area. A form in which the power socket 123 is arranged can be adopted. According to this, the distance between the tray opening 97 and the power socket 123 can be kept as far as possible, so even if water spills when the drainage tray 95 is separated, the power socket 123 can be prevented from being splashed with water. can be done. Therefore, it is possible to prevent problems such as a short circuit and corrosion in the power socket 123 from occurring.

The power socket 123 is provided in the innermost portion of a socket recessed portion 125 formed in the charger main body 18, and the inner peripheral wall of the socket recessed portion 125 is tapered toward the innermost portion in the insertion direction of the connection plug 124. can take the form of With this configuration, the inlet side of the socket recess 125 can be widened and the inner depth can be narrowed. is easy, and interference between the connection plug 124 and the outer surface of the charger main body 18 can be prevented. In addition, in the middle of the connection of the connection plug 124, the connection plug 124 is guided by the wall surface, and the connection plug 124 can be inserted so as to approach the socket concave portion 125, thereby facilitating the connection of the connection plug 124 to the power supply socket 123. can be

The movement of the small electric device attached to the attachment portion 21 is restricted by the three wall surfaces 50, 51, and 52 on the inner peripheral surface surrounding the attachment portion 21. When the charger is viewed from above, the drainage tray 95 It can be constructed such that it can be pulled out and separated in the direction opposite to the direction in which the movement of the small electrical device is restricted. According to this, even when the drainage tray 95 is separated by grasping the small electrical device, the movement of the small electrical device is restricted and the appropriate charging position is maintained. Even when separated, the charging operation of the small electric device can be reliably continued.

A drainage tray 95 is formed in a container shape having an open upper surface by a circumferential side wall 101 and a bottom wall 102, and a dirt receiving concave portion 104 is formed in the bottom wall 102 of the drainage tray 95 facing a drainage port 94.例文帳に追加can be done. According to such a drain tray 95, even if hair waste is mixed in the discharged water, the hair waste can be collected in the dust receiving recess 104, so that the water containing the hair waste does not spill out from the drain tray 95. can be suppressed, and the mounting surface around the charger can be prevented from being soiled by hair dust.

The dirt receiving recess 104 is recessed in the bottom wall 102 of the drain tray 95 without contacting the peripheral side wall 101 of the drain tray 95, and the curvature of the inner corner 105 sandwiched between the inner peripheral surface and the bottom surface of the waste receiving recess 104. can be set smaller than the curvature of the internal corner portion 106 sandwiched between the inner surfaces of the peripheral side wall 101 and the bottom wall 102 of the drainage tray 95 . According to this, while the capacity of the drain tray 95 is increased as much as possible at the inner corner 106 between the peripheral side wall 101 and the bottom wall 102 of the drain tray 95 where hair waste does not easily accumulate, the inner corner of the dust receiving recess 104 Since the inner corner portion 105 can be formed into an inner corner shape in which hair dust does not easily accumulate and is easy to clean, the drainage tray 95 can be cleaned easily.

If the charger main body 18 is provided with the pressing body 111 that presses and urges the drain tray 95 against the support wall 110, the drain tray 95 can be prevented from unintentionally rattling in the vertical direction. It is possible to prevent the water stored in the drainage tray 95 from spilling from the drainage tray 95 at times. Frictional resistance at the contact surface between the lower surface of the drainage tray 95 and the support wall 110 can give the user an appropriate operational feeling when attaching and detaching the drainage tray 95, so that the user can adjust the operating speed of the attachment and detachment of the drainage tray 95. It can be expected to be controlled, thereby preventing spilling of water due to the rapid withdrawal and separation of the drainage tray 95 and damage to the drainage tray 95 due to the rapid insertion and attachment of the drainage tray 95.例文帳に追加

The pressing body 111 is integrally provided with a fixing portion 112, a pressing portion 113, and an elastically deformable elastic arm 114 connecting the fixing portion 112 and the pressing portion 113. A configuration in which an engagement recess 120 with which the pressing portion 113 drops and engages when 95 is at the mounting position is formed to be recessed can be adopted. According to this, the drainage tray 95 can be held at the mounting position by the pressing portion 113 and the engaging recessed portion 120, and the pressing body 111 and the engaging recessed portion 120 can function as a position holding structure. In addition, when the drainage tray 95 is attached and detached, the drainage tray 95 is operated when the pressing portion 113 comes out of the engaging recess 120 at the start of the drawer separation, and when the pressing portion 113 falls into the engaging recess 120 at the end of the insertion installation. It is possible to give a feeling to the user, and it is also possible to make the pressing body 111 and the engaging concave portion 120 function as a moderation structure. As described above, the pressing body 111 and the engaging recess 120 can serve as both the position holding structure and the moderation structure of the drainage tray 95. Therefore, the number of parts can be reduced compared to a form in which both structures are provided separately. can be reduced to reduce manufacturing costs.

Two elastic arms 114 are extended from the fixed part 112, and the tip of each elastic arm 114 is connected to the end part of the pressing part 113 which is formed in a band plate shape and curved downward toward the drainage tray 95. configuration can be adopted. According to this, since the fixed part 112, the elastic arm 114, and the pressing part 113 are formed in a frame shape, the structural strength of the pressing body 111 can be increased. As a result, the elastic arm 114 can be flexibly elastically deformed, so that an accurate position holding function and a clear moderation function can be exhibited.

The fixing portion 112 of the pressing body 111 can be fixed more stably as the contour shape thereof is formed larger, and the elastic arm 114 can be elastically deformed more supplely. Therefore, the size of the whole charger becomes large. On the other hand, as in the present invention, when the fixing portion 112 is fixed to the charger main body 18 in a state in which the drain port 94 of the bottom wall 49 faces the flow path opening 115 of the fixing portion 112 formed in an endless annular shape, the fixing portion While enlarging the outline shape of 112, the central portion of the fixed portion 112, which is a dead space, can be used as a flow path for drainage. Therefore, the charger as a whole can be made compact while elastically deforming the elastic arm 114 more supplely.

When a pair of elastic arms 114 and a pressing portion 113 are provided on the fixed portion 112 so as to face each other with the fixed portion 112 therebetween, the drainage tray 95 is attached to the support wall 110 at two points. Since the drain tray 95 can be pressed down and biased, it is possible to more reliably prevent the drain tray 95 from rattling in the vertical direction. In addition, it is possible to exhibit a more accurate position holding function and a clear moderation function.

The charger main body 18 is provided with a drain tube 96 that guides the water drained from the drain port 94 to the drain tray 95. When the fixing portion 112 is fixed to the drain tube 96, the structural frame of the charger is reduced. Since the fixing portion 112 can be supported and fixed by the charger main body 18 , the pressing body 111 can be fixed more firmly. Therefore, it is possible to exhibit a more accurate position holding function and moderation function.

The drainage tube 96 is formed in a stepped cylindrical shape, and a circumferential fixing seat 116 is provided on the outer peripheral surface of the tube 96. The pressing body 111 is fitted in the drainage tube 96 in a state in which the flow path opening 115 of the pressing body 111 is fitted. A configuration in which the fixing portion 112 of 111 is fixed to the fixing seat 116 can be adopted. According to this, the fixing portion 112 is supported and fixed while the movement of the drain tube 96 in the direction orthogonal to the cylinder axis is restricted, so that the pressing body 111 can be fixed more firmly.

The small electric appliance can be an electric shaver, and the electric shaver is inserted into the mounting portion 21 and mounted in an inverted posture with the razor head 2 positioned on the lower side. The mounting portion 21 is provided with heating means for accelerating the drying of the razor head 2 . The bottom wall 49 of the mounting portion 21 is formed of a highly flexible material and has a raised wall 133 rising upward facing the front and/or back of the cutting blade portion 3 . The heating means includes a bottom wall 49 of the mounting portion 21 , a heater 128 for heating the bottom wall 49 and a heat transfer plate 134 for conducting heat to the raised wall 133 . The heat transfer plate 134 is configured to include a conduction plate 135 extending upward along the raised wall 133 and a heat receiving plate 136 connected to the lower end of the conduction plate 135 to receive heat from the heater 128 . According to such an electric shaver charger, the air in the mounting portion 21 is heated through the bottom wall 49 heated by the heater 128, the temperature of the entire shaver head 2 is raised, and the shaver head 2 is dried after being washed with water. can promote In addition, the bottom wall 49 heated by the heater 128 heats the tip of the razor head 2, and the raised wall 133 actively heats the front and/or back of the cutting blade portion 3, effectively cleaning the blade after washing with water. Drying of the razor head 2 can be accelerated.

If the conductive plate 135 is provided so as to face or be in close contact with the rear surface of the raised wall 133 with a small gap, the conductive plate 135 can hold the shape of the raised wall 133 formed of a highly flexible material. , the raised wall 133 can exactly face the front and/or the back of the cutting edge 3 . Also, the heat of the conductive plate 135 can be efficiently transferred to the raised wall 133 . Therefore, it is possible to effectively heat the cutting blade portion 3 and promote the drying of the razor head 2 after washing with water.

By inserting the upper edge and the vertically extending edge of the conductive plate 135 into the insertion grooves 140 provided on the rear surface of the raised wall 133, the raised wall 133 and the conductive plate 135 can be configured integrally. , the shape of the raised wall 133 can be more accurately maintained. There is also an advantage that the heat transfer loss between the raised wall 133 and the conductive plate 135 can be reduced by separating them.

When the raised wall 133 is raised upward in a crank shape in cross section and the conductive plate 135 is formed along the back surface of the raised wall 133, the razor head 2 comes into contact with the raised wall 133 when the electric shaver is inserted into the mounting portion 21 and attached. Even in this case, the buckling deformation of the conduction plate 135 can be prevented because the crank-shaped cross section exerts springiness. If the raised wall 133 has a straight cross section, the conductive plate 135 may come off the insertion groove 140 if the raised wall 133 is stretched and deformed so as to be stretched upward. On the other hand, in the present invention, since the bent portion is formed in the middle portion of the conductive plate 135, only the raised wall 133 above the bent portion is elongated and deformed, and the margin for elongation is reduced, so that the conductive plate 135 is inserted into the groove. 140 can be suppressed.

When the heat transfer plate 134 is fixed to the plate fixing seat 141 of the charger body 18, the heat transfer plate 134 can be firmly supported and fixed, so that the shape of the raised wall 133 can be maintained more accurately.

If the heating means has a metal protection plate 129 between the bottom wall 49 and the heater 128 , the protection plate 129 can protect the heater 128 even if the electric shaver falls on the bottom wall 49 . In addition, when the heat receiving plate 136 of the heat transfer plate 134 is brought into close contact with the plate surface of the protection plate 129, the heat of the heater 128 can be received by the heat receiving plate 136 via the metal protection plate 129, and the protection plate 129 can substantially eliminate the decrease in heat conduction efficiency from the heater 128 to the heat transfer plate 134 due to the provision of the .

FIG. 6 is a cross-sectional plan view of the essential parts of the electric shaver charger according to the first embodiment of the present invention, and is a cross-sectional view taken along the line AA in FIG. 5; 1 is a front view of an electric shaver and a charger according to Example 1, showing a state in which the electric shaver is erected; FIG. 1 is a plan view of an electric shaver charger according to Example 1. FIG. 1 is a longitudinal front view of an electric shaver charger according to Embodiment 1. FIG. 1 is a longitudinal side view of an electric shaver charger according to Embodiment 1. FIG. FIG. 5 is a cross-sectional view taken along the line BB in FIG. 4; It is a perspective view which shows the shape of an electric power feeding terminal. It is a vertical side view which shows a drainage port and a drainage tray. 4 is a perspective view showing the shape of a pressing body; FIG. FIG. 4 is a schematic plan view showing a state in which the drain tray and connection plug are attached to the charger; It is a rear view which shows the shape of a socket recessed part. FIG. 4 is a vertical cross-sectional view showing the structure around the heating means and the raised portion; FIG. 13 is a cross-sectional view taken along line CC in FIG. 12; It is a perspective view which shows the modification of an electric power feeding terminal. Fig. 2 is a schematic plan view of an electric shaver charger according to a second embodiment of the present invention; FIG. 3 is a schematic plan view of an electric shaver charger according to Example 3 of the present invention. FIG. 4 is a schematic side view of an electric shaver charger according to a fourth embodiment of the present invention;

(Embodiment 1) Figs. 1 to 13 show Embodiment 1 in which the small electric appliance charger (functional device) according to the present invention is applied to an electric shaver charger. Front and back, left and right, and up and down in this embodiment follow the crossed arrows shown in FIGS.

In FIG. 2, an electric shaver, which is a small electric device, comprises a vertically long main body portion 1 that also serves as a grip, and a razor head (functional head) 2 that is supported on the upper portion of the main body portion 1 . A cutting blade portion 3 is arranged at the upper end of the razor head 2, and the cutting blade portion 3 is composed of a main blade 4 and a trimmer unit 5 provided on the front side thereof. The main blade 4 is composed of an inner blade 6 that rotates around a horizontal axis and a net-like outer blade 7 that circumscribes the inner blade 6. The trimmer unit 5 includes a movable blade 8 and a fixed blade, both of which are comb teeth. 9. Although not shown, an edge shaving unit is provided on the back side of the razor head 2 .

The inner blade 6 of the main blade 4 and the movable blade 8 of the trimmer unit 5 are driven by rotational power of a motor 12 with a speed reducer provided inside the razor head 2 . A secondary battery 13 that supplies electric power to the motor 12 is accommodated in the main body 1 . In addition, the main body 1 is provided with a push-type switch button 14 on the front surface thereof for switching between the drive state and the stop state of the electric shaver, and power receiving terminals 15 for receiving the supply of the charging current to the secondary battery 13 on the left and right side surfaces. are provided respectively. The power receiving terminal 15 is formed in a cylindrical shape, and the contact portion 16 at the tip thereof is rounded into a hemispherical shape so that only the contact portion 16 is exposed to the outer surface of the main body portion 1 . The razor head 2 can be washed with water, and by activating the motor 12 to drive the inner blade 6 and the movable blade 8 during washing, hair waste, sebum, etc. adhering to the inside of the razor head 2 are effectively washed away. be able to.

The charger has an elliptical charger main body (apparatus main body) 18 elongated in the vertical direction in plan view. As shown in FIGS. 3 and 5, the charger main body 18 is composed of a base frame 19 and a housing 20 covering the upper surface of the base frame 19. The housing 20 has a front side with wide left and right openings in plan view. An electric shaver mounting portion 21 is provided which has a convex upper surface opening composed of a wide portion and a rear narrow portion having narrow left and right opening widths. The lateral opening width of the front wide portion of the mounting portion 21 is set slightly larger than the lateral width dimension of the razor head 2 . In addition to charging the electric shaver attached to the attachment portion 21, the charger can dry and sterilize the shaver head 2 that has been washed with water.

The housing 20 includes an outer housing 24 that forms the peripheral surface of the charger main body 18 and defines the front half peripheral surface of the mounting portion 21 , and the outer housing 24 that is disposed inside the outer housing 24 and covers the rear half peripheral surface of the mounting portion 21 . It is composed of a partitioning inner housing 25, a bottom housing 26 partitioning the bottom surface of the mounting portion 21, an annular upper housing 27 forming the top surface of the housing 20, and the like.

As shown in FIG. 5, the upper surface side of the base frame 19 is divided into front and rear by a partition wall 28 provided on the upper surface in the middle thereof. A mounting portion 21 is provided on the rear side. The control board 31 has a switch element 32 and two display LEDs 33 mounted on its front surface for displaying the operating state, and is a cover body that closes an opening 34 opened in the base frame 19 on the front side of the partition wall 28. A control board 31 is fixed on the upper surface of 35 in a vertical posture. The upper housing 27 is integrally fixed to the outer housing 24 in the majority portion except for the front end portion, and the front end portion is supported in a cantilever manner so as to be elastically deformable up and down. When the front end of the upper housing 27 is pushed and elastically deformed downward, the switch element 32 can be pushed through the link arm 36 .

When the electric shaver is mounted in the proper charging position of the mounting portion 21, the control board 31 automatically switches the charger from the off state to the charging mode and starts supplying charging current to the electric shaver. When the switch element 32 is pushed by pushing the front end of the upper housing 27 during the charging operation, the control board 31 switches the charger from the charging mode to the dry sterilization mode, and after the charging operation is stopped, the electric shaver is turned on. Drying and sterilizing operations are performed. The drying operation and the sterilizing operation are performed for a predetermined period of time, and when each operation is completed, the charging operation is started again. In either mode, the charging operation is automatically stopped when the secondary battery 13 is fully charged. When the switch element 32 is pushed before the secondary battery 13 is fully charged, the charge mode and the dry sterilization mode are alternately switched each time the push operation is performed. The operating state of the charger is indicated by two operation display portions 37 provided on the top surface of the front end of the upper housing 27 . When the charging operation display LED 33 is turned on, the light is emitted to the outer surface from the charging operation display unit 37 (right side) through the light guide 38 fixed to the upper end of the control board 31 . . Further, when the drying operation and sterilizing operation display LED 33 is turned on, the light is emitted from the drying operation and sterilizing operation display unit 37 (left side) to the outer surface through the light guide member 38 .

A blower means is provided inside the rear side of the charger main body 18 . As shown in FIGS. 4 and 5, the air blowing means includes a blowing fan 41 made of a box fan provided inside the housing 20, a suction opening 42 formed in the rear surface of the outer housing 24 and taking in outside air into the blowing fan 41, It is composed of a blowing opening 43 which is opened in the inner housing 25 and blows out the dry air supplied from the blowing fan 41 into the mounting portion 21 and the like. The suction opening 42 and the blowing opening 43 are each opened in a multistage groove shape. When the blower fan 41 is driven, the external air of the charger main body 18 is taken in through the suction opening 42 , and the air is pressure-fed by the blower fan 41 and sent into the mounting portion 21 through the blowout opening 43 as dry air. In the drying operation, the air blowing means and the heating means, which will be described later, are driven to accelerate the drying of the razor head 2 after washing with water.

The bottom housing 26 is provided with sterilization means. As shown in FIGS. 3 and 5, the sterilization means includes a light-transmitting window 44 provided in the bottom housing 26, and an ultraviolet light emitting device disposed on the inner surface side of the light-transmitting window 44 capable of emitting light (electromagnetic waves) in the ultraviolet region. It is composed of four sterilizing light sources 45 made of LEDs. The light-transmitting window 44 is made of a light-transmitting material, and is provided at a position directly facing the cutting blade portion 3 of the electric shaver attached to the charging position of the attaching portion 21 . When the sterilization light source 45 is turned on, the inner blade 6 and the outer blade 7 of the main blade 4 and the movable blade 8 and the fixed blade 9 of the trimmer unit 5 are irradiated with the sterilization light, and the cutting blade portion 3 is sterilized. . Further, when the photocatalyst is coated on the inner blade 6, the outer blade 7, the movable blade 8, and the fixed blade 9, the photocatalyst can be excited by the sterilizing light emitted from the sterilizing light source 45, and the photocatalyst adheres. It can promote the decomposition of organic matter. The sterilization light source 45 can also be configured by a UV lamp.

The attachment of the electric shaver to the attachment portion 21 can be performed by the following procedure. First, the electric shaver is placed in an inverted position with the front face facing the front of the charger and the shaver head 2 positioned downward. In this state, the electric shaver is inserted from above to the bottom of the mounting portion 21 through the front wide portion of the upper opening, and furthermore, as shown by the arrow in FIG. is tilted rearward to move the body portion 1 to the rear side narrow portion of the upper opening. As a result, the electric shaver is attached to the appropriate charging position of the attachment portion 21 . In the electric shaver mounted at the charging position, the razor head 2 is restrained from moving forward by a pair of left and right positioning ribs indicated by reference numeral 48 in FIGS. is received on the bottom wall 49 (bottom housing 26) of the. Further, the body portion 1 is leaning against the rear wall surface 50 (wall surface) of the mounting portion 21 while the entire electric shaver is tilted backward. The body portion 1 faces a rear wall surface (wall surface) 50 of the mounting portion 21 and a left wall surface (wall surface) 51 and a right wall surface (wall surface) 52 in the narrow rear portion of the upper opening. The upper end portion of 52 is in contact with the outer surface of main body 1 to restrict the movement of main body 1 in the rearward direction and in the lateral direction.

An outer housing 24, an inner housing 25, and an upper housing 27, which constitute the housing 20, are made of molded plastic. The bottom housing 26 constitutes the bottom wall 49 of the mounting portion 21 and is made of a molded product made of an elastomer (elastic body) having excellent flexibility, heat resistance, and good thermal conductivity. By using an elastomer for the material forming the bottom housing 26, the impact acting on the razor head 2 when the electric razor is received by the bottom wall 49 of the mounting portion 21 is reduced, and the surface of the cutting blade portion 3 is prevented from being damaged. etc. can be prevented.

The charging, drying, and sterilizing operations by the charger are configured to be performed when the electric shaver is attached to the appropriate charging position of the attachment portion 21 . Therefore, one detection switch 55 for detecting that the electric shaver is properly attached to the charging position of the attachment portion 21 is arranged at the vertical central position of the rear wall surface 50 of the attachment portion 21 . As shown in FIGS. 5 and 6, the detection switch 55 includes a contact body 56 guided by the rear wall surface 50 of the mounting portion 21 so as to move forward and backward, a switch body 57 turned on and off by the contact body 56, and a mounted A biasing member 58 and the like are provided to bias the contact body 56 toward the electric shaver attached to the portion 21 . The switch body 57 is composed of a microswitch, and a movable spring 58 responsible for snap action of an actuator portion 59 of the switch functions as an urging member. If the movable spring 58 alone is not sufficient to urge the contact member 56 to advance, the urging member 58 may be a compression coil spring, a plate spring, or the like. The control board 31 performs each operation of charging, drying, and sterilization when the switch body 57 is switched from the off state to the on state.

The switch body 57 is held and fixed inside a square box-shaped switch case 62 with an open front surface, and the switch case 62 is fixed to the inner housing 25 with screws (not shown). The abutment body 56 includes a curved plate-shaped abutment base 63 having a frontally bulging center portion in the vertical direction, and a pair of upper and lower connecting walls 64 extending rearward from the upper and lower ends of the abutment base 63 . there is Guide claws 65 are formed on the upper and lower surfaces of the switch case 62 respectively, and the guide claws 65 are engaged with guide grooves 66 formed in the connecting wall 64 . The contact member 56 is supported by the guide claws 65 and the guide grooves 66 so as to move forward and backward relative to the switch base 62 , while the amount of movement in the forward and backward directions (forward and backward directions) is restricted. The contact body 56 is arranged to fit inside a switch opening 67 formed in the rear wall surface 50 of the inner housing 25 , and the contact body 56 can move freely forward and backward on the inner peripheral surface of the switch opening 67 as well. Guidance is supported. In this embodiment, the switch body 57 is composed of a microswitch, but the switch body 57 can be composed of a tact switch that is pushed at the retraction end of the contact body 56 . In this case, an urging member 58 such as a compression coil spring or a plate spring may be used to urge the contact member 56 in the advancing direction.

The front surface of the contact base 63 is used as a contact portion with which the electric shaver comes into contact, and the contact portion is formed with a plurality of ribs 68 with rounded ends extending in the vertical direction (insertion direction of the electric shaver). there is The upper end of the rear surface of the main body 1 comes into contact with the abutment surface, and the abutment body 56 is pushed backward. Thus, by forming the contact portion of the contact member 56 constituting the detection switch 55 with a plurality of vertically extending ribs 68, the contact area between the electric shaver and the contact portion can be made as small as possible. As a result, it is possible to suppress scratches due to friction between the electric shaver and the contact portion when attaching and detaching the shaver. Furthermore, by rounding the tips of the ribs 68, the contact area can be further reduced, and the damage to the body 1 due to the contact friction between the body 1 and the ribs 68 can be further reduced. In the case of a battery charger in which a washed electric shaver is attached to the attachment portion 21 as in this embodiment, the water adhering to the contact member 56 must flow downward through the adjacent ribs 68, 68. Therefore, malfunction of the detection switch 55 due to accumulation of water around the detection switch 55 can be prevented, and the safety of the charger can be improved. If a plurality of ribs 68 are formed in a direction that intersects the insertion direction of the electric shaver, the electric shaver may catch on the ribs 68 and damage the detection switch 55 when the electric shaver is attached or detached.

The mounting portion 21 is provided with a pair of left and right power supply terminals 71 for supplying a charging current to the electric shaver mounted at the charging position. As shown in FIGS. 4 and 5, the power supply terminals 71 are provided on left and right wall surfaces 51 and 52 of the mounting portion 21 sandwiching the body portion 1, respectively. As shown in FIGS. 1 and 7, each power supply terminal 71 includes a terminal portion 72 that engages with the power receiving terminal 15 of the electric shaver, a fixing portion 73 for fixing the power supply terminal 71 to the charger main body 18, and a An arm portion 74 which is connected to the terminal portion 72 and whose other end is connected to the fixed portion 73 and supports the terminal portion 72 so as to be swingably displaceable with respect to the fixed portion 73 , and a fixed portion 73 on the other end side of the arm portion 74 . It is integrally provided with a lead connection portion 75 connected to the lead wire. The fixing portion 73, the arm portion 74, and the lead connection portion 75 are formed in a plate shape, the arm portion 74 is bent forward with respect to the fixing portion 73, and the lead connection portion 75 is bent rearward. As a result, the fixing portion 73, the arm portion 74, and the lead connecting portion 75 are integrally bent into a crank shape.

A terminal portion 72 of each power supply terminal 71 is supported by an arm portion 74 so as to face terminal openings 76 formed in the left and right wall surfaces 51 and 52 so as to move forward and backward toward the advancing direction (the electric shaver side). It is biased by a biasing member 77 . The terminal portion 72 is guided and supported by the inner peripheral surface of the terminal opening 76 so as to be retractable. The biasing member 77 is a compression coil spring provided between the terminal portion 72 and the inner surface of the outer housing 24 facing the terminal portion 72 .

Since the plate-shaped arm portion 74 is elastically deformable, the elasticity of the arm portion 74 also urges the terminal portion 72 to advance, and thus the arm portion 74 also functions as an urging member 77 . According to such a power supply terminal 71, since the arm portion 74 can be used as the biasing member 77, the compression coil spring 77 can be omitted. In this case, since it is not necessary to provide the compression coil spring 77, the structure around the power supply terminal 71 can be simplified, and the manufacturing cost of the charger can be reduced. Further, even when the compression coil spring 77 is provided, the spring rate of the compression coil spring 77 can be reduced, and the assembling property of the power supply terminal 71 and the compression coil spring 77 can be improved.

The terminal portion 72 is formed with an annular ridge portion 80 projecting toward the power receiving terminal 15 side and a mortar-shaped trough portion 81 surrounded by the ridge portion 80 . The power receiving terminal 15 is engaged with the terminal portion 72 in a state in which the hemispherical contact portion 16 climbs over the peak portion 80 and fits into the bowl-shaped valley portion 81 . When the terminal portion 72 is formed with the annular ridge portion 80 and the mortar-shaped trough portion 81 surrounded by the ridge portion 80 in this manner, the ridge portion 80 moves the power supply terminal 71 in the engagement direction. can be regulated to accurately hold the electric shaver at a proper charging position. In addition, when the power receiving terminal 15 climbs over the ridge 80 and falls into the trough 81, it is possible to give a sense of moderation, so that the user can recognize that the electric shaver is mounted at the proper charging position. Moreover, regardless of the direction in which the power receiving terminal 15 is engaged with or disengaged from the terminal portion 72, the same click feeling can be obtained and the separation can be performed with the same operating force.
Further, when the contact portion 16 at the tip of the power receiving terminal 15 formed in a spherical shape is engaged with the trough portion 81 in a mortar shape, the contact portion 16 and the trough portion 81 can be brought into circular line contact. Therefore, both 15 and 81 can be accurately brought into contact with each other to reduce electrical resistance at the contact portion.

As described above, when the annular (annular) peak portion 80 is formed in the terminal portion 72, the structural strength of the terminal portion 72 can be increased, so that the charging operation can be performed stably over a long period of time. In addition, the peak portion 80 can also be formed in a triangular ring shape, a square ring shape, or a polygonal ring shape. In this case, when the power receiving terminal 15 is engaged with the terminal portion 72, the click feeling changes depending on whether the power receiving terminal 15 is over the side portion or the corner portion, and the power receiving terminal 15 is separated from the terminal portion 72. Separation operation force changes depending on whether it is going over a corner or over a corner.

Each of the outer slope 82 and the inner slope 83 of the peak portion 80 is configured with a tapered surface. is set larger than According to this, when the contact portion 16 climbs over the outer slope 82 and engages with the valley portion 81, the resistance to climb over becomes relatively large, so that the user can obtain a reliable click feeling, and the electric shaver can be operated by the user. It can be clearly recognized that it is attached to the charging position. In addition, when the contact portion 16 is separated from the valley portion 81 by climbing over the inner slope 83, the resistance to climb over the contact portion 16 is relatively small, so that the separation operation force can be reduced, and the user can operate the electric shaver with a light force. Can be removed. The timing at which the contact portion 16 climbs over the peak portion 80 at the time of engagement is during the mounting operation of the electric shaver to the mounting portion 21, so even if there is a relatively large overriding resistance, the contact is easily made by the momentum of the mounting operation. The portion 16 can be engaged with the valley 81 .

A cylindrical portion 84 is provided in the terminal portion 72 so as to be continuous with the bottom portion of the outer slope 82 . The arm portion 74 is integrally connected to the bottom portion of the tubular portion 84 . In addition, a restricting portion 85 is formed by bending at the bottom portion of the cylindrical portion 84 on the side opposite to the arm portion 74 . limit of advance is stipulated. The power supply terminal 71 is formed by bending and drawing a blank material made of a metal plate punched into a predetermined shape by a pressing machine. By providing the cylindrical portion 84 that is continuous with the bottom portion of the outer slope 82 of the peak portion 80 in this way, the structural strength of the terminal portion 72 can be further enhanced, and the charging operation can be performed stably over a longer period of time.

A majority portion (one end side) of the compression coil spring 77 on the terminal portion 72 side described above is provided in a state of being accommodated in the cylindrical portion 84 . Further, the end turn portion of the compression coil spring 77 on the terminal portion 72 side is received by the bottom surface of an annular valley-shaped receiving recess 86 formed on the inner surface side of the peak portion 80 . In this manner, when one end of the compression coil spring 77 is accommodated in the cylindrical portion 84 and the terminal portion 72 is urged toward the electric shaver, the movement of the compression coil spring 77 can be restricted by the cylindrical portion 84. The repulsive force of the spring 77 can be accurately received and the terminal portion 72 can be positively urged forward. There is also an advantage that the compression coil spring 77 can be stably supported. Further, when the end turn portion of the compression coil spring 77 accommodated in the cylindrical portion 84 is received by the receiving concave portion 86 having an annular valley shape, the movement of the compression coil spring 77 can be more reliably restricted. The repulsive force of the terminal portion 72 can be received more accurately, and the terminal portion 72 can be urged forward more reliably. There is also an advantage that the compression coil spring 77 can be supported more stably.

The fixed portion 73 is fixed to a terminal fixing seat 89 formed on the back surface of the inner housing 25 . Specifically, the fixing portion 73 has a through hole 90 penetrating through the plate surface, and the terminal fixing seat 89 extends in a direction (rear direction) orthogonal to the protruding/retracting direction (horizontal direction) of the terminal portion 72 . A fixing pin (fixing tool) 91 having an axis is projected. The fixing pin 91 is inserted through the through hole 90 to bring the fixing portion 73 into close contact with the terminal fixing seat 89 , and in this state, the fixing pin 91 is melted and deformed to fix the fixing portion 73 to the terminal fixing seat 89 . Instead of the fixing pin, the fixing member 91 can be constituted by a screw or the like that is screwed into the terminal fixing seat 89 through the through hole 90 and fixed.

As described above, when the axial direction of the fixing pin 91 for fixing the fixing portion 73 to the inner housing 25 (charger main body 18) is orthogonal to the extending/retracting direction of the terminal portion 72, the terminal portion Since the fixing portion 73 tries to move in its extension direction as the fixing portion 72 moves forward and backward, a force acts on the fixing pin 91 in the shear direction. As a result, the fixed portion 73 is firmly received by the fixed pin 91 and does not rattle, and the terminal portion 72 can be properly moved forward and backward. Conversely, if the axial direction of the fixing pin 91 is parallel to the protruding/retracting direction of the terminal portion 72, for example, if the fixing pin 91 is a screw, the terminal portion 72 protrudes and retracts. Since a force along the tightening direction acts on the screw, there is a risk that the screw will loosen gradually.

The extension direction of the terminal portion 72 and the extension direction of the fixing portion 73 are the same direction (horizontal direction). direction) is configured to be orthogonal to the extending/retracting direction of the terminal portion 72 and the extending direction of the fixing portion 73 . The extending direction of the arm portion 74 is formed so as to be inclined with respect to the axial direction of the fixing pin 91, and the internal angle θ sandwiched between the fixing portion 73 integrally formed in the shape of a bending plate and the arm portion 74 is an obtuse angle. is set to be According to this, the total length of the arm portion 74 can be made longer than when the interior angle θ is set to a right angle, and the amount of elastic deformation of the arm portion 74 accompanying the movement of the terminal portion 72 can be reduced. , fatigue failure of the arm portion 74 due to repeated elastic deformation can be avoided. Also, when the interior angle θ is set to an acute angle, the overall length of the arm portion 74 can be lengthened. It is disadvantageous in that fatigue fracture is likely to occur at

In this embodiment, the total force of the biasing members (the compression coil spring 77 and the arm portion 74) that biases the power supply terminals 71 to advance is the biasing member (movable spring) that biases the detection switch 55 to advance. It is set larger than the urging force of 58. By setting the biasing force of each of the biasing members 58 and 77 in this manner, the electric shaver can be restrained from floating away from the wall surface by sandwiching the electric shaver with a greater biasing force.
Also, as described above, the electric shaver attached to the appropriate charging position of the attachment portion 21 leans against the rear wall surface 50 . Therefore, in an incomplete mounting position such that the entire electric shaver is vertically inverted (not tilted backward), even if the power receiving terminal 15 and the power feeding terminal 71 are in contact with each other, the detection switch 55 will not be detected. is not switched on, no charging current is supplied.

In the electric shaver charger of this embodiment, the power supply terminals 71 are provided on the left and right wall surfaces 51 and 52 of the mounting portion 21 facing each other with the electric shaver in between, and the detection switch 55 is provided on the remaining rear wall surface 50 . According to such an arrangement form of the power supply terminal 71 and the detection switch 55, the biasing force acting in the facing direction by the biasing member 77 of the pair of power supply terminals 71 sandwiches the electric shaver through the power receiving terminal 15 to hold the position. The biasing force of the biasing member 58 of the detection switch 55 and the external force acting on the charger can effectively prevent the electric shaver from floating away from the wall surface.

When the razor head 2 washed with water is attached to the attachment part 21, water remaining after cleaning drips and accumulates in the bottom housing 26.例文帳に追加In order to drain the water, as shown in FIGS. 4 and 8, the bottom housing 26 is provided with a drain port 94, and the water drained from the drain port 94 is received and stored below the drain port 94. A drain tray 95 is provided. A drain cylinder 96 is provided between the drain port 94 and the drain tray 95 to guide the water to the drain tray 95 . The drainage tray 95 is detachably attached to a tray mounting portion 98 having a tray opening 97 opened on the right peripheral side surface of the charger main body 18 , and is detachable in the left-right direction (horizontal direction) through the tray opening 97 . is attached to the As a result, the attachment/detachment direction of the drain tray 95 is set parallel to the mounting surface of the charger (horizontal direction) and perpendicular to the flow direction of the water flowing through the drain port 94 . The tray mounting portion 98 is recessed upward on the bottom surface of the base frame 19 , and a portion of the tray mounting portion 98 is exposed at the lower right side surface of the charger main body 18 , and the exposed portion serves as the tray opening 97 . An upper portion and front and rear portions of the tray opening 97 connected to the right side surface of the charger main body 18 are provided with oblique notches so that the drain tray 95 can be easily grasped with a fingertip.

The drainage tray 95 is formed in a square container shape having an open top surface with a circumferential side wall 101 and a bottom wall 102, and front and rear corners on the left side are rounded. Flange walls 103 are formed to protrude outward from the upper edges of the front, rear, and left peripheral side walls 101 . A dirt receiving recess 104 is formed in a part of the bottom wall 102 of the drain tray 95 , and the dirt receiving recess 104 is provided at a position facing the drain port 94 . Further, the dust receiving recess 104 is recessed in the bottom wall 102 without contacting the peripheral side wall 101 . The curvature of an internal corner portion 105 sandwiched between the inner peripheral surface and the bottom surface of the dust receiving recess 104 is set smaller than the curvature of an internal corner portion 106 sandwiched between the inner surfaces of the peripheral side wall 101 and the bottom wall 102 . Since the curvature of the internal corner portion 105 of this embodiment is made as small as possible, the internal corner portion 105 connecting the bottom surface of the bottom wall 102 and the bottom surface of the dust receiving recess 104 is formed in a substantially inclined surface shape. Finger hook recesses 107 are formed in the front and rear side walls 101 facing the tray opening 97 so that the drainage tray 95 can be more easily gripped with the fingertips (see FIGS. 4 and 10).

As described above, the attachment/detachment direction of the drain tray 95, which is attached/detached from the tray attachment portion 98 through the tray opening 97 formed in the right peripheral side surface of the charger main body 18, is set parallel to the mounting surface of the charger. Then, the drainage tray 95 can be attached and detached without lifting the charger, and the water stored in the drainage tray 95 can be simply disposed of. There is also an advantage that the drainage tray 95 can be attached and detached more smoothly than the case where the drainage tray 95 is attached and detached while being pulled up obliquely upward or pulled obliquely downward with respect to the mounting surface.
In addition, if the dirt receiving recess 104 is recessed in the bottom wall 102 of the drain tray 95 facing the drain port 94, when hair waste is mixed in the discharged water, the waste receiving recess 104 can collect the hair waste. As a result, it is possible to suppress spillage of water containing fluff from the drainage tray 95 as much as possible, and to prevent the mounting surface around the charger from being soiled by the fluff.
Further, the curvature of the internal corner 105 sandwiched between the inner peripheral surface and the bottom surface of the dust receiving recess 104 is made smaller than the curvature of the internal corner 106 sandwiched between the inner surfaces of the peripheral side wall 101 and the bottom wall 102 of the drainage tray 95. With this setting, the capacity of the drain tray 95 is maximized at the inner corner 106 between the peripheral side wall 101 and the bottom wall 102 of the drain tray 95 where hair waste is less likely to accumulate, while the inner corner 105 of the dust receiving recess 104 is positioned. The drain tray 95 can be cleaned easily because it can be made into a shape that makes it difficult for hair waste to accumulate and easy to clean.

As described above, the electric shaver at the mounting position moves backward and laterally at the upper ends of the three rear wall surfaces 50, the left wall surface 51, and the right wall surface 52 on the inner peripheral surface surrounding the mounting portion 21. In the plan view of the charger, the drain tray 95 is pulled out to the right (opposite side to the movement restriction direction of the electric shaver) and separated. According to this, even if the drainage tray 95 is separated by grasping the electric shaver, the movement of the electric shaver is restricted and the appropriate charging position can be maintained. , the charging operation of the electric shaver is reliably continued.

As shown in FIGS. 8 and 10, rail walls (support walls) 110 protrude inward from the front and rear inner wall surfaces of the tray mounting portion 98, respectively. The drainage tray 95 is attached to the tray attachment portion 98 in such a manner that the flange wall 103 (lower surface of the drainage tray 95 ) of the drainage tray 95 is received by the rail wall 110 . The rail wall 110 also serves as a guide member for slidingly guiding the drainage tray 95 inserted through the tray opening 97 . The charger main body 18 is provided with a pressing body 111 that presses and biases the drainage tray 95 against the rail wall 110 .

As shown in FIG. 9, the pressing body 111 includes a fixing portion 112 fixed to the base frame 19 (charger main body 18), a pressing portion 113 in contact with the drain tray 95, and a fixing portion 112 and pressing portion 113. It has a pair of elastically deformable left and right elastic arms 114 that are integrally connected. The pressing portion 113 is formed in the shape of a band plate that curves downward, and is provided so as to connect the tips of the pair of elastic arms 114 . The fixing portion 112 is formed in a frame shape (endless annular shape) having a circular channel opening 115 in the center of the plate surface. The pressing portion 113 and the pair of elastic arms 114 are provided on the front and rear sides of the fixed portion 112, respectively. The pressing body 111 is formed by bending a blank material made of a metal plate punched into a predetermined shape by a press machine.

As described above, when the charger main body 18 is provided with the pressing body 111 that presses and urges the flange wall 103 of the drain tray 95 against the rail wall 110 of the tray mounting portion 98, the drain tray 95 is vertically moved by the pressing body 111. Since rattling can be prevented, it is possible to prevent the drainage tray 95 from unnecessarily rattling and spilling out the stored water when the drawer is operated. In addition, due to the frictional resistance of the contact surface between the flange wall 103 of the drain tray 95 and the upper surface of the rail wall 110, an appropriate operational feeling can be obtained when attaching and detaching the drain tray 95, and the drain tray 95 can be pulled out and separated quickly. Therefore, it is possible to prevent the water from spilling and the drain tray 95 from being damaged by being quickly inserted and attached.

A circumferential fixed seat 116 is formed on the outer peripheral surface of the drain pipe 96 described above, and the drain pipe 96 is formed in a stepped cylindrical shape. , the pressing body 111 is fixed to the charger main body 18 . The fixed portion 112 is fixed to the base frame 19 in a state in which the flow passage opening 115 of the fixed portion 112 faces the drain port 94 of the bottom wall 49 . Specifically, through holes 117 are formed at the four corners of the fixing portion 112 , and fixing pins 118 are provided upward at positions corresponding to the through holes 117 in the fixing seat 116 . The upper half of the drain tube 96 is inserted into the flow path opening 115 of the fixed part 112 , and the fixed part 112 is fitted onto the drain tube 96 . Further, the fixing portion 112 can be fixed to the fixing seat 116 by bringing the fixing portion 112 into close contact with the fixing seat 116 and melting and deforming the tip of the fixing pin 118 in this state. Instead of the fixing pin 118, the pressing body 111 can be fixed by a screw or the like that is screwed into the fixing seat 116 through the through hole 117 and fixed.

The fixing portion 112 of the pressing body 111 can be fixed more stably as the contour shape thereof is formed larger, and the elastic arm 114 can be elastically deformed more supplely. Therefore, the size of the whole charger becomes large. However, as in this embodiment, when the fixed portion 112 is fixed to the base frame 19 in a state in which the drain port 94 of the bottom wall 49 faces the flow path opening 115 of the fixed portion 112 formed in an endless annular shape, the fixed portion 112 is While enlarging the outline shape, the central part of the fixed part 112, which is a dead space, can be used as a flow path for the drainage. Therefore, the charger as a whole can be constructed compactly while enabling elastic deformation of the elastic arm 114 flexibly.

The tip of the projection of each pressing portion 113 protrudes into the tray mounting portion 98 through an exposure hole 119 formed in the base frame 19 , and the projecting portion of the pressing portion 113 is engaged with the drainage tray 95 . It engages with the recess 120 . The engaging recess 120 is a recess formed in the top surface of the peripheral side wall 101 and the flange wall 103. When the drainage tray 95 is attached to the tray attaching portion 98, the pressing portion 113 is in the engaging recess 120. Drop engagement. In this manner, when the engaging recess 120 is formed on the upper surface of the drain tray 95 so that the pressing portion 113 drops and engages when the tray 95 is at the mounting position, the drain tray 95 can be held at the mounting position. can. Also, when attaching and detaching the drainage tray 95, when the pressing portion 113 comes out of the engaging recess 120 at the start of the drawer separation, and when the pressing portion 113 falls into the engaging recess 120 at the end of the insertion installation, the user must remove the drainage tray 95. Since the user feels a positive response to the operation, the pressing body 111 and the engaging recess 120 can function as a moderation structure. Since the functions of both the position holding structure and the moderation structure of the drainage tray 95 can be combined, there is also the advantage that the number of parts can be reduced and the manufacturing cost can be reduced.

Two elastic arms 114 are extended from the fixed part 112 , and the tip of each elastic arm 114 is connected to the end part of a pressing part 113 formed in a band plate shape that curves downward toward the drainage tray 95 . Therefore, the fixing portion 112, the elastic arm 114, and the pressing portion 113 are formed in a frame shape. As a result, the structural strength of the pressing body 111 can be increased, and the elastic arm 114 can be elastically deformed more flexibly, so that an accurate position holding function and a clear moderation function can be exhibited. The fixed portion 112 is provided with a pair of elastic arms 114 and a pressing portion 113 so as to face each other with the fixed portion 112 interposed therebetween. It is possible to press down and energize the drain tray 95 to prevent the drain tray 95 from rattling in the vertical direction more reliably. It is also advantageous in that a more accurate position holding function and a clear moderation function can be exhibited.

The base frame 19 is provided with a drain tube 96 that guides the water drained from the drain port 94 to the drain tray 95. When the fixing portion 112 of the pressing body 111 is fixed to the drain tube 96, the structural frame of the charger is formed. Since the fixed portion 112 can be supported and fixed by a certain charger main body 18, the pressing body 111 can be firmly fixed, and an accurate position holding function and a clear moderation function can be exhibited.
Further, when the fixing portion 112 of the pressing body 111 is fixed to the fixing seat 116 of the drainage pipe 96 in a state where the flow path opening 115 of the pressing body 111 is fitted to the drainage pipe 96 , the fixing portion 112 becomes the pipe of the drainage pipe 96 . Since it is supported and fixed while its movement in the direction orthogonal to the axis is restricted, the pressing body 111 can be fixed more firmly.

The charger main body 18 is provided with a power receiving power socket 123 for receiving driving power of the charger, and a connection plug 124 provided at one end of a power cord is inserted into the power socket 123 and connected. there is A power cord on the other end side of the connection plug 124 is provided with a plug that is inserted into a commercial power outlet. As shown in FIG. 10, in a plan view of the charger, assuming an imaginary line V passing through the center of the charger body 18 and extending in the front-rear direction, the right side (one side) of the charger body 18 divided by the imaginary line V The tray opening 97 is arranged in the area of , and the power socket 123 is arranged in the left (other) area.

If the tray opening 97 is arranged in the area on the right side of the charger main body 18 divided by the virtual line V as described above, and the power supply socket 123 is arranged in the area on the left side, the distance between the tray opening 97 and the power supply socket 123 can be adjusted. Further away, even if water spills when the drainage tray 95 is separated, the power socket 123 will not be splashed with water. Therefore, the power socket 123 can be effectively prevented from being short-circuited or corroded. When assuming the virtual line V and a second virtual line passing through the center of the charger main body 18 and perpendicular to the virtual line V, the tray opening 97 and the power socket 123 are arranged in the diagonal quadrants. You can also In this case, both 97 and 123 are kept further apart, so that water can be prevented from adhering to the power socket 123 when the drainage tray 95 is attached or detached.

The connection plug 124 is inserted and connected to the power socket 123 from the rear to the front. As a result, the attachment/detachment direction of the drainage tray 95 and the insertion direction (front-rear direction) of the connection plug 124 are perpendicular to each other. Further, the insertion direction of the connection plug 124 is set parallel to the mounting surface of the charger (horizontal direction). As described above, the attachment/detachment direction of the drainage tray 95 is orthogonal to the flow direction of the water flowing through the drainage port 94 . It is configured so as to be orthogonal to the flowing direction.

As described above, when the drain tray 95 is attached and detached so that the connection plug 124 inserted into the power socket 123 is inserted perpendicularly to the drain tray 95, it is possible to separate the drain tray 95 while holding the power cord. Even when the connection plug 124 is pulled out, it is possible to prevent the connection plug 124 from coming off. Therefore, even when the drainage tray 95 is full and the drainage tray 95 must be separated during charging of the electric shaver, interruption of the electric shaver charging operation can be prevented. For example, if the drain tray 95 is attached/detached and the connection plug 124 is inserted in the opposite direction, the connection plug 124 may also come off if the drain tray 95 is separated while the power cord is being held.
Also, if the direction of insertion of the connection plug 124 is set parallel to the mounting surface of the charger, it can be pulled up obliquely upward or downward with respect to the mounting surface as in the case of the drainage tray 95 described above. The connection plug 124 can be attached and detached more smoothly than when the drainage tray 95 is attached and detached.

The power socket 123 is provided in the deep inside of a socket recess 125 formed in the charger main body 18 . The socket recesses 125 are recessed upward in the bottom surface of the base frame 19 and open on the left surface, the rear surface, and the bottom surface of the charger main body 18 . As shown in FIGS. 10 and 11 , the inner wall surfaces forming the upper and right sides of the socket recess 125 are tapered inward in the insertion direction of the connection plug 124 . With such a socket recess 125, the entrance side of the socket recess 125 can be widened and the inner depth can be narrowed. As a result, at the initial stage of connecting the connection plug 124 to the power socket 123, the connection plug 124 can be easily inserted into the socket recess 125, and interference between the connection plug 124 and the outer surface of the charger main body 18 can be prevented. In addition, in the middle of the connection of the connection plug 124, the connection plug 124 is guided by the wall surface, and the connection plug 124 can be inserted so as to approach the socket recess 125, thereby facilitating the connection of the connection plug 124 to the power supply socket 123. can. In this embodiment, both the inner wall surfaces forming the upper side and the right side are tapered toward the inner depth in the insertion direction of the connection plug 124, but only one of the inner wall surfaces is tapered. It may be formed in a ball shape.

The mounting portion 21 is provided with a heating means that is driven together with the air blowing means during the drying operation. As shown in FIGS. 3, 5, and 12, the heating means includes the bottom wall 49 (bottom housing 26) of the mounting portion 21, a heater 128 provided on the lower surface of the bottom wall 49, the bottom wall 49 and the heater 128. A protection plate 129 made of metal and the like is provided between them. The heater 128 is a sheathed heater having a circular cross section, and is provided annularly around a rectangular frame-shaped heater base 130 fixed to the partition wall 28 of the base frame 19 . The inner opening of the heater base 130 is arranged so as to face the translucent window 44 described above, so that the heater 128 is arranged along the periphery of the lower surface of the translucent window 44 . The protective plate 129 is formed in a square frame shape surrounding the translucent window 44 , the lower surface of which is in close contact with the heater 128 , and the upper surface of which is in close contact with the rear surface of the bottom wall 49 .

In the electric shaver at the charging position, the tip of the shaver head 2 is in contact with the bottom wall 49, and the heating means and the blowing means are driven to heat the shaver head 2 while supplying dry air to wash the shaver with water. promote drying of the razor head 2. However, the main blade 4 and the trimmer unit 5 provided in the cutting blade portion 3 have a precise structure, and furthermore, the inner blade 6 and the outer blade 7, and the movable blade 8 and the fixed blade 9 are provided in close contact with each other. Inevitably, it takes time to dry. Therefore, in this embodiment, the bottom wall 49 is provided with a raised wall 133 facing the front of the cutting blade portion 3 . As shown in FIG. 12, the raised wall 133 rises upward in a crank-like cross-section, and its upper end faces the front of the trimmer unit 5 in close contact. A raised wall 133 can be provided so as to face the back surface of the cutting blade portion 3, or two raised walls 133 can be provided so as to face the front surface and the rear surface of the cutting blade portion 3. In addition, a raised wall 133 facing the right and left sides of the tip of the razor head 2 can be provided.

As shown in FIGS. 12 and 13 the heating means comprises a heat transfer plate 134 for conducting heat to the raised wall 133 . The heat-transfer plate 134 is formed by bending a metal plate, and includes a heat-receiving plate 135 extending upward along the raised wall 133 and a heat-receiving plate 135 connected to the lower end of the conductive plate 135 to receive heat from the heater 128 . A plate 136 is provided. The conductive plate 135 is formed in a crank shape along the rear surface of the raised wall 133 and adheres to the rear surface of the raised wall 133 . Insertion grooves 140 are provided on the upper surface of the raised wall 133 and on the rear surface of the left and right peripheral edges, and the upper edge and left and right edges (side edges extending vertically) of the heat transfer plate 135 are inserted into the insertion grooves 140 . inserted into each. The heat receiving plate 136 is in close contact with the upper surface of the front side of the protection plate 129 , and the heat of the heater 128 is conducted to the heat transfer plate 134 via the protection plate 129 . Incidentally, the conductive plate 135 can also be provided on the rear surface of the raised wall 133 so as to face each other with a slight gap therebetween.

As described above, when the conductive plate 135 is provided in close contact with the rear surface of the raised wall 133, the conductive plate 135 can hold the shape of the raised wall 133 formed of a highly flexible material, and the raised wall 133 can be cut by the cutting blade. It is possible to accurately face the front of the part 3. Also, the heat of the conductive plate 135 can be efficiently transferred to the raised wall 133 . Therefore, it is possible to effectively heat the cutting blade portion 3 and promote the drying of the razor head 2 after washing with water.
Further, by inserting the upper edge of the conductive plate 135 and the vertically extending edge into the insertion grooves 140 provided on the rear surface of the raised wall 133, the raised wall 133 and the conductive plate 135 are integrated. Therefore, the shape of the raised wall 133 can be maintained more accurately. There is also an advantage that the heat transfer loss between the raised wall 133 and the conductive plate 135 can be reduced by separating them.
In addition, if the raised wall 133 is raised upward in a crank shape in cross section and the conductive plate 135 is formed in a shape along the back surface of the raised wall 133 , when the electric shaver is inserted into the mounting portion 21 , the razor head 2 will be pushed upward by the raised wall 133 . buckling deformation of the conductive plate 135 can be prevented because the crank-shaped cross section exerts springiness even when the conductive plate 135 comes into contact with . If the raised wall 133 has a straight cross section, the conductive plate 135 may come off the insertion groove 140 if the raised wall 133 is stretched and deformed so as to be stretched upward. However, in the present embodiment, since the bent portion is formed in the middle of the conductive plate 135, only the raised wall 133 above the bent portion is stretched and deformed, so that the conductive plate 135 is inserted to the extent that the margin for elongation is reduced. It is possible to suppress slipping out of the groove 140 .

The heat transfer plate 134 is fixed to a plate fixing seat 141 formed on the partition wall 28 of the base frame 19 . Specifically, a pair of left and right fixing tongues 137 for fixing the protective plate 129 are provided at the tip of the heat receiving plate 136 . A through hole 142 passing through the plate surface is formed in the fixed tongue piece 137 , and two fixing pins 143 project upward from the plate fixing seat 141 . A fixing pin 143 is inserted into each through hole 142 to bring the fixing tongue piece 137 into close contact with the plate fixing seat 141. In this state, the tip of the fixing pin 143 is melted and deformed to attach the heat transfer plate 134 to the base frame 19. can be fixed. Instead of the fixing pins 143, the heat transfer plate 134 can be fixed by screws or the like that are screwed into the plate fixing seat 141 through the through holes 142 and fixed. When the heat transfer plate 134 is fixed to the plate fixing seat 141 of the base frame 19 in this manner, the heat transfer plate 134 can be firmly supported and fixed, so that the shape of the raised wall 133 can be maintained more accurately.

According to the electric shaver charger provided with the heating means as described above, by energizing the heater 128, the air in the mounting portion 21 is heated via the bottom wall 49 heated by the heater 128, and the razor is heated. The temperature of the entire head 2 can be raised to accelerate the drying of the razor head 2 after washing with water. In addition, the bottom wall 49 heated by the heater 128 heats the tip of the razor head 2, and the raised wall 133 actively heats the front surface of the cutting edge 3 to effectively clean the razor head 2 after washing. Drying can be accelerated.
Also, if a metal protective plate 129 is provided between the bottom wall 49 and the heater 128 , the heater 128 can be protected by the protective plate 129 even if the electric shaver falls onto the bottom wall 49 . In addition, when the heat receiving plate 136 of the heat transfer plate 134 is brought into close contact with the plate surface of the protection plate 129, the heat of the heater 128 can be received by the heat receiving plate 136 via the metal protection plate 129, and the protection plate 129 , the reduction in heat transfer efficiency from the heater 128 to the heat transfer plate 134 can be substantially eliminated.
In this embodiment, since the heater 128 is a sheathed heater having a circular cross section, if the heater 128 is brought into direct contact with the bottom wall 49, both 49 and 128 will be in line contact. However, by interposing a metal protection plate 129 between the two 49 and 128, the heat of the heater 128 can be conducted to a wider area of the bottom wall 49 via the protection plate 129, so that the bottom wall 49 can be It can heat efficiently.

In the above embodiment, the connection plug 124 on one end of the power cord is connected to the power socket 123, the plug on the other end of the power cord is connected to a commercial power outlet, and then the electric shaver is attached in an inverted position. The battery charger is constructed such that when the battery is inserted into the portion 21 and tilted backward, the detection switch 55 is turned on and the charging operation for the electric shaver is automatically started. In this way, instead of the operation mode of the charger in which the charging operation is automatically started by switching the detection switch 55 to the ON state, the electric shaver is attached to the appropriate charging position of the attachment portion 21 and the detection switch is activated. 55 is switched to the ON state, an operation mode can be employed in which the charging operation is started when the switch element 32 is manually pushed (turned on). Furthermore, when the switch element 32 is pushed, an operation mode can be provided in which the mode can be switched between the charge mode and the dry sterilization mode. In this case, detection switch 55 functions as a switch that switches the charger to a standby state in which charging, drying, and sterilization operations can be performed. In addition, in this operation mode, the three modes of standby, charging mode, and dry sterilization mode are configured to be switched in a loop each time the switch element 32 is pushed.

According to the electric shaver charger having the operation mode as described above, when an electric shaver with a sufficient remaining charge amount of the secondary battery 13 for storage is attached to the attachment portion 21, the charging operation is performed unnecessarily. Therefore, deterioration of the secondary battery 13 due to frequent repetition of short-time charging operations can be suppressed. Note that when the remaining charge of the secondary battery 13 is below 40%, for example, the charging operation may be started without pushing the switch element 32 .

FIG. 14 shows a modification of the power supply terminal 71 in which the shape of the terminal portion 72 is changed. There, the terminal portion 72 is formed by bending a plate portion continuous to the arm portion 74 into a corrugated plate shape by a pressing device, thereby forming two peak portions 80 and a valley portion 81 between the two peak portions 80 and 80. , and a restricting portion 85 is formed. The two peaks 80 are arranged along the direction of engagement of the power receiving terminal 15 . According to such a power supply terminal 71, since it can be formed only by bending a blank material with a press machine, the manufacturing cost of the power supply terminal 71 is reduced compared to the power supply terminal 71 in which the terminal portion 72 is formed by drawing. be able to. Moreover, there is no need to select a material with good drawing workability, which is advantageous in that the power supply terminal 71 can be formed from a less expensive material. The structural strength of the terminal portion 72 as a whole can be increased by applying rib pressing to the top portions of the peak portions 80 and the valley portions 81 . Since other parts are the same as those of the first embodiment, the same reference numerals are given to the same members, and the description thereof will be omitted. The same applies to the following description.

(Embodiment 2) FIG. 15 shows Embodiment 2 of the small electric device charger according to the present invention. This embodiment is different from the first embodiment in that the detection switch 55 is arranged on the left wall surface 51 of the mounting portion 21 and both power supply terminals 71 are arranged on the right side surface 52 . According to such an arrangement form of the power supply terminal 71 and the detection switch 55, the biasing force of the biasing member 77 of the power supply terminal 71 and the biasing member 58 of the detection switch 55 acting in the opposing directions sandwiches the electric shaver. It is possible to effectively prevent the electric shaver from slipping due to the biasing force of the biasing members 58 and 77 and the external force acting on the charger.

(Embodiment 3) FIG. 16 shows Embodiment 3 of the small electric device charger according to the present invention. This embodiment differs from the first embodiment in that both power supply terminals 71 are arranged on the rear wall surface 50 of the mounting portion 21 and the detection switch 55 is arranged on the right side surface 52 . According to such an arrangement form of the power supply terminal 71 and the detection switch 55, the biasing force of the biasing member 58 of the detection switch 55 presses the electric shaver against the left wall surface 51 and holds the position. It is possible to effectively prevent the electric shaver from slipping due to the urging force of the charger or the external force acting on the charger.

(Embodiment 4) FIG. 17 shows Embodiment 4 of the small electric device charger according to the present invention. In this embodiment, a support 147 is formed separately from the charger main body 18 to support the main body 1 of the electric shaver and restrict its movement in the rearward and lateral directions. The support body 147 is composed of a pair of left and right support arms 148 and a support column 149 provided integrally with the pair of support arms 148, and is configured so that the support column 149 can be inserted into the charger main body 18 and attached. there is A power supply terminal 71 is provided on each of the pair of support arms 148 . According to such a charger, the height dimension of the charger can be reduced by separating the support 147 when not in use, and the charger can be stored compactly. The base end portion of the support column 149 is rotatably supported by a rotation shaft provided in the charger main body 18 so that the support member 147 can be placed in an upright position in which the electric shaver can be charged and in the mounting portion 21 . It is also possible to adopt a configuration in which the posture can be changed between a lying posture and a lying posture.

As described above, in the electric shaver charger of each of the above-described embodiments, the power supply terminal 71 and the detection switch 55 are arranged on the rear peripheral surface and the left and right peripheral surfaces of the inner peripheral surface surrounding the attachment portion 21. The urging members 77 and 58 are urged to advance toward different peripheral surfaces of the electric shaver in different states. Therefore, the biasing force by the biasing members 77 and 58 can be applied to the peripheral surface of the electric shaver from a plurality of directions. In a conventional charger, a large biasing force acts on the same peripheral surface in the circumferential direction, and there is a risk that the electric shaver may be lifted and separated from the wall surface. can be prevented from floating away from the wall surface. In addition, since a large biasing force does not act on the same peripheral surface of the electric shaver, there is no need to provide a holding structure to hold the position of the electric shaver unlike the conventional charger. As described above, according to the present embodiment, the electric shaver attached to the attachment portion 21 can be held in an appropriate charging position without providing a separate structure dedicated to holding the position. A charger can be provided in which the operation of charging the electric shaver is performed.

In each of the above embodiments, a charger (functional device) that charges a small electric appliance (an electric shaver) is added with drying and sterilizing functions. It can be seen as a drier (functional device) that performs a drying operation on the equipment, with the function of charging operation and/or sterilizing operation added. Such a dryer for small electric appliances can be implemented in the following forms.

Equipped with a dryer body (device body) 18 having a recessed mounting portion 21 that allows insertion and mounting of a small electrical device from above,
A small electrical device comprises a body portion 1 and a functional head (razor head) 2 supported on the upper portion of the body portion 1, and the small electrical device is mounted in an inverted posture with the functional head 2 positioned on the lower side. It is inserted and attached to the part 21,
The mounting portion 21 is provided with heating means for accelerating the drying of the functional head 2,
The bottom wall 49 of the mounting portion 21 is formed of a highly flexible material and has a raised wall 133 that rises upward facing the peripheral side surface of the functional head 2.
The heating means includes a bottom wall 49 of the mounting portion 21, a heater 128 for heating the bottom wall 49, and a heat transfer plate 134 for conducting heat to the raised wall 133,
A compact heat transfer plate 134 comprising a conductive plate 135 extending upward along a raised wall 133 and a heat receiving plate 136 connected to the lower end of the conductive plate 135 and receiving heat from a heater 128. Dryer for electrical equipment. In addition, the “peripheral side of the functional head 2 ” referred to here means at least one of the front, back, left side, and right side of the functional head 2 .

According to the dryer for small electrical devices configured as described above, the air in the mounting portion 21 is heated through the bottom wall 49 heated by the heater 128, the temperature of the entire functional head 2 is raised, and after washing with water function of the head 2 can be accelerated. In addition, the bottom wall 49 heated by the heater 128 heats the tip of the functional head 2, and the raised wall 133 actively heats the peripheral side surface of the cutting edge portion 3 to effectively heat the functional head 2 after washing with water. drying can be accelerated.

It is possible to combine the dryer of the above-described mode with the modes described in claims 31 to 36 in the dryer for small electrical equipment. Furthermore, the dryer for small electric appliances can combine the above-described dryer with the embodiments described in claims 1 to 30. When the forms are combined in this way, the phrase "charger for small electrical equipment" in the claims should be replaced with "dryer for small electrical equipment." Also, the term "charger main body 18" in the specification may be replaced with "dryer main body 18".

Also, the dryer (functional device) for small electrical equipment can be implemented in the following form. i.e.
Equipped with a dryer body (device body) 18 having a recessed mounting portion 21 that allows insertion and mounting of a small electrical device from above,
A small electrical device comprises a body portion 1 and a functional head (razor head) 2 supported on the upper portion of the body portion 1, and the small electrical device is mounted in an inverted posture with the functional head 2 positioned on the lower side. It is inserted and attached to the part 21,
The mounting portion 21 is provided with heating means for accelerating the drying of the functional head 2,
A drain port 94 is provided in the bottom wall 49 of the mounting portion 21,
The dryer main body 18 is provided with a drainage tray 95 for receiving water flowing down from the drainage port 94,
The drainage tray 95 is detachably attached to a tray attachment part 98 having a tray opening 97 opened on the peripheral side of the dryer main body 18. A dryer for small electrical equipment, characterized in that it is set in a direction parallel to a mounting surface of the dryer.

According to the dryer for small electric appliances equipped with the drainage tray 95 as described above, the drainage tray 95 can be attached and detached without lifting the dryer, and the water stored in the drainage tray 95 can be easily disposed of. can be done. In addition, there is an advantage that the drainage tray 95 can be attached and detached more smoothly than the case where the drainage tray 95 is attached and detached while being pulled up obliquely upward or pulled obliquely downward from the mounting surface.

It should be noted that the dryer for small electric appliances equipped with the drain tray 95 can combine the above-described dryer with the modes described in Claims 17 to 30. Furthermore, it is possible to combine the dryer of the above configuration with the configurations described in claims 1 to 15 and claims 31 to 36. When the forms are combined in this manner, the term "charger for small electrical equipment" in the scope of claims may be replaced with "dryer for small electrical equipment" as described above. Also, the term "charger main body 18" in the specification may be replaced with "dryer main body 18".

From another perspective, the charger (functional device) for small electrical devices in each of the above embodiments is a sterilizer (functional device) that sterilizes small electrical devices, and has the function of charging and/or drying operation. can also be viewed as an addition of Such a sterilizer for small electrical appliances can be implemented in a form comprising sterilization means including a light source 45 for sterilization. In addition, the sterilizer for a small electrical appliance equipped with a sterilizing means can combine the sterilizer of the above-described mode with the modes described in claims 1 to 36. When the forms are combined in this way, the phrase "charger for small electrical equipment" in the claims may be replaced with "sterilizer for small electrical equipment." Also, the term "charger main body 18" in the specification may be replaced with "sterilizer main body 18".

The charger (functional device) for the electric shaver (small electric device) shown in each of the above embodiments can be applied to beauty equipment such as an iontophoresis device and an ion derivation device, a handy massager, an electric toothbrush, a smart phone, and a mobile phone. It can also be applied to chargers such as In the case of an electric shaver, the razor head is configured as the functional head 2. In the beauty device, the skin treatment section (skin electrode head) is brought into contact with the skin surface, and in the handy massager, the treatment section is brought into contact with the human body. (massage head), and in the case of an electric toothbrush, the cleaning part (brush head) that is brought into contact with the intraoral region respectively correspond to the functional head 2 . In addition, in chargers for small electrical devices that do not need to be washed, such as smartphones and mobile phones, drying means can be omitted, and charging or charging and sterilization can be performed. It can be used as a charger for small electrical equipment.

1 Body Part 2 Razor Head 3 Cutting Blade Part 15 Power Receiving Terminal 16 Contact Part 18 Charger Body 21 Mounting Part 49 Bottom Wall 50 Wall Surface (Rear Wall Surface)
51 wall (left wall)
52 wall (right wall)
55 detection switch 56 contact body 57 switch body 58 biasing member (movable spring)
68 rib 71 power supply terminal 72 terminal portion 73 fixing portion 74 arm portion 77 biasing member (compression coil spring)
80 Mountain portion 81 Valley portion 82 Outer slope 83 Inner slope 84 Cylindrical portion 86 Receiving recess 91 Fixing tool (fixing pin)
94 drain port 95 drain tray 96 drain tube 97 tray opening 98 tray mounting portion 101 peripheral side wall 102 bottom wall 104 dust receiving recess 105 inside corner portion 106 inside corner portion 110 support wall (rail wall)
111 pressing body 112 fixing part 113 pressing part 114 elastic arm 115 passage opening 116 fixing seat 120 engagement recess 123 power socket 124 connection plug 125 socket recess 128 heater 129 protection plate 133 raised wall 134 heat transfer plate 135 conduction plate 136 heat receiving plate 140 Insertion groove 141 Plate fixing seat V Virtual line θ Interior angle

Claims (3)

a charger body (18) having a recessed mounting portion (21) that allows insertion and mounting of a small electrical device from above;
a pair of power supply terminals (71) provided on the inner peripheral surface of the mounting portion (21) facing the small electrical device and supplying a charging current to the power receiving terminal (15) of the small electrical device;
a detection switch (55) provided on the inner peripheral surface of the mounting portion (21) for detecting that the small electric device is mounted in a proper charging position with respect to the mounting portion (21);
biasing members (77 and 58) that bias the power supply terminal (71) and the detection switch (55) toward the peripheral surface of the small electrical device in the attached state;
with
The power supply terminal (71) and the detection switch (55) are arranged on a plurality of peripheral surfaces, ie, the front and rear peripheral surfaces and the left and right peripheral surfaces of the inner peripheral surface surrounding the mounting part (21), so that the small electric device in the mounted state urged to advance toward different peripheral surfaces by urging members (77 and 58) ,
The power supply terminal (71) includes a terminal portion (72), a fixed portion (73) fixed to the charger main body (18), and an arm portion (74) connecting the terminal portion (72) and the fixed portion (73). ) and
A charger for small electrical equipment, wherein an arm portion (74) is elastically deformable, and a terminal portion (72) is supported so as to be swingable in a retracting direction . The fixing part (73) is formed of a plate-like body, and the fixing part (73) is fixed to the charger main body (18) with a fixture (91) penetrating the plate surface,
2. A charger for small electrical equipment according to claim 1, wherein the axial direction of the fixture (91) is perpendicular to the extension/retraction direction of the terminal portion (72) . The arm portion (74) is formed of a plate-like body, and the fixing portion (73) and the arm portion (74) are integrally formed into a bent plate shape,
3. A charger for small electrical equipment according to claim 2, wherein an internal angle ([theta]) between the fixing portion (73) and the arm portion (74) is set to an obtuse angle .

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