JP2001155570A - Switch structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching structure capable of preventing the charging defect by not feeding electric current to a load circuit but feeding the charging current to a battery. SOLUTION: A switch base 1 is provided with a switch contact 2 and a terminal 3 connected to an external circuit, a contact spring 4 for the switch is removably mounted for allowing the switch contact 2 to be in contact with or separated from the same for short-circuiting, and an operating body 5 is mounted for opening and closing the shorted circuit in a state that a main switch short-circuited by the contact spring 4 is ON.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure for a rechargeable electric device such as an electric razor.

[0002]

2. Description of the Related Art Conventionally, in a rechargeable electric device such as an electric razor, a load circuit is closed when a main switch is turned on at the time of charging. There is a problem in that the charging current does not flow to the charging storage battery side due to the rotation of the motor connected to the circuit side, and the battery is not charged.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve all the problems in the prior art described above, and its object is to provide a load circuit such as a motor even when the main switch is turned on at the time of charging. An object of the present invention is to provide a switch structure in which a current does not flow to the charging side and a charging current flows to the side of the storage battery for charging so that charging failure can be eliminated.

[0004]

According to the switch structure of the present invention, a switch base is provided with a switch contact portion and a terminal portion connected to an external circuit, and the switch contact portion is attached to and detached from the switch base. A contact spring for a switch that is freely contacted and short-circuited is provided, and an operating body that opens and closes the short-circuited circuit when the main switch is short-circuited by the contact spring is provided.

Therefore, in this case, an operating body is provided for opening and closing the short-circuited circuit when the main switch is short-circuited by a switch contact spring which is detachably contacted with the switch contact section and short-circuited. Because
Even if the main switch is turned on at the time of charging, the operating body prevents the current from flowing to the load circuit side such as the motor, thereby causing the charging current to flow to the storage battery for charging. Defects can be eliminated.

According to a second aspect of the present invention, there is provided a switch structure comprising:
The switch structure according to claim 1, wherein the operating body is formed of an insulating material, and the operating body slides in and out between the switch contact portion and the contact spring to open and close the short-circuited circuit. It is characterized by having done.

Therefore, in this case, in particular, the short-circuited circuit is opened and closed by the sliding operation of the operating body made of an insulating material between the switch contact portion and the contact spring. But the operation is smooth.

[0008] The switch structure according to claim 3 of the present invention comprises:
The switch structure according to the second aspect is characterized in that the operation body is pivotally attached to the switch base and is slid by rotation.

Therefore, in this case, particularly, the operation body is pivotally attached to the switch base and is slid by rotation, so that the slide operation mechanism is simplified.

[0010] The switch structure according to claim 4 of the present invention comprises:
The switch structure according to any one of claims 1 to 3, wherein the contact spring is operated to turn on / off the main switch.
The contact spring is attached to the main operation body that performs the FF operation, and the convex rib that suppresses the amount of elastic deformation of the contact spring by contacting the switch base side by contacting the switch base side is reduced. It is characterized by being formed on an operation body.

Therefore, in this case, particularly when the main operating body provided with the contact spring is incorporated, or when the main switch is turned ON / OFF by the main operating body, the main operating body is connected to the switch base side. Even if the contact spring is strongly pressed, the contact spring is prevented from being excessively elastically deformed by the contact of the convex rib with the switch base, so that the contact spring is hardly damaged, and the load applied to the contact spring is reduced. The durability and reliability of the contact spring can be improved by setting an appropriate spring deformation amount of the contact spring so that the contact spring is stable.

According to a fifth aspect of the present invention, there is provided a switch structure comprising:
The switch structure according to any one of claims 1 to 3, wherein the terminal portion is provided with elasticity, and the terminal portion is elastically deformed and brought into contact with an external circuit. It is characterized in that the base is attached to the electric equipment main body provided with the external circuit.

[0013] Therefore, in this case, particularly, since the terminal portion is easily connected electrically to the external circuit with its elastic deformation without requiring soldering or the like, the switch base is connected to the external circuit. The electrical connection structure at the time of attachment to the electric device body provided with the circuit is simplified, and the workability of the attachment is improved.

According to a sixth aspect of the present invention, there is provided a switch structure comprising:
The switch structure according to any one of claims 1 to 3, wherein a peripheral wall rib for storing and holding a contact lubricant is formed on an outer periphery of a surface of the switch base on which the switch contact portion is provided. Features.

Therefore, in this case, in particular, the contact lubricant can be stored and held on the surface of the switch base surrounded by the peripheral wall rib on which the switch contact portion is provided, so as not to flow outside. The resistance at the time of sliding contact between the switch contact portion and the contact spring is reduced, and at the same time, a change in electrical contact resistance is prevented, so that the durability and reliability of the switch can be ensured for a long time.

A switch structure according to a seventh aspect of the present invention comprises:
The switch structure according to any one of claims 1 to 3, further comprising an elastic body for urging the operation body to a position where the short-circuited circuit is closed.

Therefore, in this case, since the operating body is urged by the elastic body to the position where the short-circuited circuit is closed, the opening / closing operation of the operating body becomes smooth, and the operation body is normally operated except for charging. It automatically returns to the use state and the usability is improved.

The switch structure according to claim 8 of the present invention is
The switch structure according to the seventh aspect is characterized in that the elastic body is shaped like a leaf spring and is integrally protruded from the operating body.

Therefore, in this case, in particular, since the elastic body for urging the operation body is formed as a leaf spring from the operation body and integrally protruded, a spring material such as a spring as a separate member is not required. In addition, the number of parts is reduced, and the assembly and manufacture are facilitated.

According to a ninth aspect of the present invention, there is provided a switch structure comprising:
The switch structure according to any one of claims 1 to 3, wherein the contact spring is operated to turn on / off the main switch.
The main operating body that performs the FF operation is provided with the contact spring, and the main operating body is pressed against the switch base so that the contact spring is elastically contacted with the switch base. The switch cover that covers the switch is fixed to the switch base, and the main operation body slides on the inner surface of the switch cover together with the sliding operation in the ON operation direction, and is pressed and guided toward the switch base. It is characterized in that a surface portion is formed.

Therefore, in this case, in particular, the main operating body is turned on by the action of the main operating body slidingly contacting the inclined surface formed on the inner surface of the switch cover and being pressed and guided.
When the contact spring is slid in the operation direction, the contact spring is strongly resilient. When the contact spring is slid in the OFF operation direction, the contact spring is weakly resilient. That is, when the main switch is in the OFF state, the load applied to the contact spring is constantly reduced, and a state in which the spring creek does not occur.
Conversely, in the ON state of the main switch, the load applied to the contact spring (spring contact pressure) increases, the contact resistance decreases, and the electrical loss is reduced. Therefore, for an electrical device that is normally switched off, the spring reaction force against the switch cover is reduced, the durability is improved and the life is prolonged, which is preferable, and the reliability of the switch is also improved. .

A switch structure according to a tenth aspect of the present invention is the switch structure according to any one of the first to third aspects, wherein the main switch is turned on by operating a contact spring.
The main operation body that performs the OFF operation is housed inside the housing of the electric device main body together with the switch base, an operation opening is formed in the housing, and the main operation body is projected from the operation opening to the main operation body. It is characterized in that a dustproof cover is provided which protrudes the operation piece and covers and closes the operation opening around the operation piece.

Therefore, in this case, especially, the main operation body and the switch base are accommodated inside the housing of the electric equipment main body, and the opening around the operation piece protruding from the main operation body is covered with the dustproof cover. Since the switch is closed, entry of dust and dirt into the switch portion is prevented, and the durability and reliability of the switch are improved.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS.
4 shows an embodiment corresponding to FIG. 4. The switch structure of this embodiment is provided with a switch base 2 provided with a switch contact 2 and a terminal 3 connected to an external circuit.
A contact spring 4 for a switch which is detachably contacted with the switch to short-circuit, and an operating body 5 for opening and closing the short-circuited circuit when the main switch short-circuited by the contact spring 4 is in an ON state; It has a plug switch function.

In the switch structure of the embodiment,
The operating body 5 is formed of an insulating material, and the operating body 5 slides into and out between the switch contact portion 2 and the contact spring 4 to open and close the short-circuited circuit. In this case, the operating body 5 is pivotally connected to the switch base 1 so as to be slid by rotation, and the main operating body that operates the contact spring 4 to perform ON / OFF operation of the main switch. 6 is provided with the same contact spring 4.
The main operating body 6 is provided with a convex rib 7 for suppressing the amount of elastic deformation caused by contact with the switch base 1 by contacting the switch base 1.

A conductive switch contact 2 is provided on the surface of a switch base 1 made of synthetic resin or the like.
Terminal portions 3 connected to an external circuit such as a motor are provided at both ends of the switch base 1. Switch contact 2
Is short-circuited to turn on / off a load circuit such as a motor incorporated in a rechargeable electric device such as an electric razor. The switch contact spring 4 is a bifurcated conductive metal plate having elasticity and opened downward. It is joined to the inner lower surface of the main operation body 6 formed of a flat box-shaped synthetic resin or the like, bent slightly downward, and protrudes downward from the main operation body 6. In this case, a protruding piece 17 extending from the end of the contact spring 4 is inserted and locked in a slit 16 formed in the peripheral wall of the main operating body 6 (which becomes the above-mentioned convex rib 7). Bonded and fixed.

In the vicinity of one side edge of the surface of the switch base 1, a bar-shaped operating body 5 formed of an insulating material such as synthetic resin is pivotally mounted. A pivot hole 19 formed at one end of the operating body 5 is rotatably fitted to the pivot shaft 18 provided. And the contact spring 4
While the main operation body 6 is pressed toward the switch base 1 so that the main operation body 6 is elastically contacted with the switch base 1, the switch cover 10 formed of a synthetic resin or the like that covers the main operation body 6 is The switch base 1 is attached and fixed. At this time, the terminal portions 3 protruding from both ends of the switch base 1 are accommodated in cutout portions 21 formed on the side wall 20 of the switch cover 10,
An operation piece 14 protruding from the upper surface of the main operation body 6 is inserted through an elongated hole 22 for an operation guide formed in an upper plate portion of the switch cover 10, and a side wall of the switch cover 10.
A notch 23 formed in the switch base 20 is engaged with a convex rib 24 protruding from the outer surface of the switch base 1. Therefore, it can be easily assembled and manufactured by the above-described procedure.

In the normal state in which the battery is not charged, the state shown in FIGS. 3 and 4 is established. ON / OFF operation is performed. As shown in FIG. 3, in a state where the contact spring 4 does not contact the switch contact portion 2 and the switch contact portion 2 is not short-circuited, current does not flow through a load circuit such as a motor and the state (OFF state).
Does not use electrical equipment. As shown in FIG. 4, when the contact spring 4 comes into contact with the switch contact portion 2 and the switch contact portion 2 is short-circuited, a current flows through a load circuit such as a motor and the state (ON state). In the electrical equipment is used. Then, at the time of charging, as shown in FIG. 5, even if the main switch is in the ON state, the operating body 5 is inserted between the switch contact portion 2 and the contact spring 4 so that the two are separated from each other. As a result, the short circuit is cut off, and no current flows to a load circuit such as a motor.

Therefore, in the switch structure of this embodiment, the main switch is short-circuited by the switch contact spring 4 which is detachably contacted with the switch contact portion 2 and short-circuited. Since the operation body 5 for opening and closing the power supply is provided, even if the main switch is turned on at the time of charging, the state shown in FIG. As a result, no current flows to the load circuit side, whereby the charging current flows to the side of the storage battery for charging, thereby eliminating poor charging. Moreover, in this case, the operating body 5 made of an insulating material slides and enters and exits between the switch contact portion 2 and the contact spring 4, thereby opening and closing the short-circuited circuit. The operation is reliable and smooth.

In the switch structure of this embodiment, since the operating body 5 is pivotally attached to the switch base 1 and is slid by rotation, the slide operation mechanism is simple. When the main operating body 6 provided with the contact spring 4 is incorporated, or when the main switch is turned ON / OFF by the main operating body 6, the main operating body 6 is strongly pressed to the switch base 1 side. However, since the lower end 25 of the peripheral wall (convex rib 7) of the main operating body 6 abuts on the upper surface 26 of the switch base 1, excessive elastic deformation of the contact spring 4 is prevented. The contact spring 4 is hardly damaged, and the contact spring 4 is moved so that the load applied to the contact spring 4 is stabilized.
By setting an appropriate amount of spring deformation, the durability and reliability can be improved.

FIGS. 6 to 11 show another embodiment corresponding to claims 1 to 4 of the present invention. In the switch structure of this embodiment, the peripheral wall of the main operation body 6 is formed as a convex rib 7 in FIG. 5, the contact spring 4 is prevented from being elastically deformed more than the deformation amount in the above-described embodiment. In this way, the appropriate amount of spring deformation of the contact spring 4 is set so that the load applied to the contact spring 4 is stabilized.

In the switch structure of this embodiment, as shown in FIGS. 9 and 10, one end of the operating body 5 pivotally connected to the switch base 1 via the pivot shaft 18 and the pivot hole 19 is provided. An operation lever 27 is pivotally connected to the other end. Here, one end of an operation lever 27 is rotatably engaged with an engagement hole 28 formed at an end of the operation body 5, and the other end of the operation lever 27 is, as shown in FIG. The electric razor is housed in a housing 12 of an electric device main body S of a rechargeable electric device.

In this case, the other end of the operation lever 27 is located close to the charging connection terminal of the electric equipment main body S, has a plug switch function, and has a charging connection terminal of the electric equipment main body S. By setting the charging state, the operating lever 27 is pushed up and the operating body 5 is automatically rotated. In the charging set state, as shown in FIG. 8, the operating body 5 is inserted between the switch contact part 2 and the contact spring 4 to separate them, and a circuit short-circuited by the contact spring 4 is cut off. As a result, no current flows to the load circuit as a motor. As described above, when the operating body 5 is operated in conjunction with the setting of the charging state, current does not automatically flow to the load circuit at the time of charging, so that charging failure can be reliably prevented. it can.

The rest of the configuration is the same as that of the embodiment shown in FIGS. 1 to 5, and the same operation and effect as those of the above embodiment can be obtained. Further, the configuration in which the operating body 5 is operated in conjunction with the setting of the charging state of the embodiment can be similarly employed in the embodiments shown in FIGS. is there.

12 and 13 show still another embodiment corresponding to the first to fifth aspects of the present invention. In the switch structure of this embodiment, the terminal portion 3 is provided with elasticity, Is elastically deformed and brought into contact with an external circuit, and the switch base 1 is attached to the electrical equipment main body S provided with the external circuit in the contacted connection state. It is fixed by being housed and installed in the main body S.

In this case, terminal portions 3 made of an elastic and conductive metal plate are protruded from both ends of the switch base 1, and the protruding portions of the terminal portions 3 are formed in a substantially V-shape. I have.
The external circuit is formed by a printed circuit board 29. The external circuit is formed at a bent corner portion of the terminal portion 3 bent in a substantially V shape so as to conform to a conductor pattern surface provided on the surface of the printed circuit board 29. A certain contact portion 30 is elastically contacted. That is, in this case, the external circuit and the switch block are connected to the electric device main body S.
By being built in, it will be electrically connected. At this time, naturally, the external circuit and the terminal portion 3 of the switch block are elastically contacted by some method. For example, a boss is provided between the back surface 31 of the printed circuit board 29 and the inside of the electric device main body S. The pressure can be fixed by the like (not shown).

Therefore, in the switch structure of this embodiment, the terminal portion 3 is easily connected electrically to the external circuit with its elastic deformation without requiring soldering or the like. The electrical connection structure when mounting the base 1 to the electrical equipment main body S provided with the external circuit is simplified, and the workability of the mounting is improved. The remaining configuration is the same as that of the embodiment shown in FIGS. 6 to 11, and the same operation and effect as those of the above embodiment are exerted.

FIG. 14 shows still another embodiment corresponding to claims 1 to 4 and 6 of the present invention. In the switch structure of this embodiment, the surface of the switch base 1 on which the switch contact portion 2 is provided. In addition, a peripheral wall rib 8 is formed along the outer peripheral edge to surround the switch contact portion 2 and stores and retains a contact lubricant inside.

Therefore, in the switch structure of this embodiment, the contact lubricant is accumulated on the surface of the switch base 1 on which the switch contact portion 2 is provided, which is surrounded by the peripheral wall ribs 8 so as not to flow outside. Can be held. As a result, the resistance at the time of sliding contact between the switch contact part 2 and the contact spring 4 can be reduced, and the change in the electrical contact resistance can be prevented, so that the durability and reliability of the switch can be improved over a long period of time. Will be secured. The rest of the configuration is the same as that of the embodiment shown in FIGS. 1 to 5, and the same operation and effect as in the above-described embodiment are exerted.

FIGS. 15 and 16 show claims 1 to 4 of the present invention.
7 shows still another embodiment corresponding to FIG. 7, and the switch structure of this embodiment includes an elastic body 9 for urging the operation body 5 to a position where the short-circuited circuit is closed. In this case, a stop rib is provided at one end 32 of the switch base 1.
33 are projected from the stopper rib 33 and the operating body 5 respectively.
34 and 35 are formed, and both ends of the elastic body 9 which is a tension spring are locked in the two stop holes 34 and 35, and the stop rib 33 and the operating body 5 are connected by the elastic body 9. here,
The operating body 5 is urged by the tensile force of the elastic body 9.

Therefore, in the switch structure of this embodiment, since the operating body 5 is urged by the elastic body to the position where the short-circuited circuit is closed, the opening and closing operation of the operating body 5 becomes smooth. The operation lever 27 is urged downward to protrude, and automatically returns to a normal use state except during charging, thereby improving the usability. The remaining configuration is the same as that of the embodiment shown in FIGS. 6 to 11, and the same operation and effect as those of the above embodiment are exerted.

17 and 18 show the first to fourth embodiments of the present invention.
7 shows still another embodiment corresponding to FIG. 7, and in the switch structure of this embodiment, a substantially U-shaped holding portion 36 is formed at one end 32 of the switch base 1 opposite to the above embodiment. The other end of the elastic body 9, which is a compression spring whose one end is fitted and held in the holding section 36, is pressed and elastically contacted with the operating body 5. In this case, the operating body 5 is pressed by the pressing force of the elastic body 9.
Will be actuated. Otherwise, the configuration is the same as that of the embodiment shown in FIGS.
The same operation and effect as in the above embodiment can be obtained.

FIGS. 19 and 20 show the present invention.
7 shows another embodiment corresponding to FIG. 7, and in the switch structure of this embodiment, one end of an elastic body 9 which is a leaf spring curved in a substantially U shape is fixed to one end 32 of the switch base 1. The other end of the elastic body 9 is pressed and elastically contacted with the operating body 5, and also in this case, the operating body 5 is pressed by the elastic body 9.
Is operated. Further, in this case, the elastic body 9 can be formed integrally with the switch base 1 made of synthetic resin, so that a separate spring member such as a spring is not required, and the number of parts is reduced. Assembly and manufacture are also easy. The rest of the configuration is the same as that of the embodiment shown in FIGS. 17 and 18, and the same operation and effect as in the above embodiment are exerted.

FIGS. 21 and 22 show claims 1 to 4 of the present invention.
Another embodiment corresponding to FIGS. 7 and 8 is shown, and in the switch structure of this embodiment, the elastic body 9 is formed into a leaf spring shape and integrally protrudes from the operating body 5. In this case, the elastic body 9
Is formed in a substantially U-shape, and is curved so as to protrude to the rear side of the switch base 1 so as to protrude to the back side thereof. The base 1 is pressed and elastically contacted with a receiving piece 38 projecting from one end 32 of the base 1.

Therefore, in the switch structure of this embodiment, since the elastic body 9 for urging the operating body 5 is integrally protruded from the operating body 5 in the form of a leaf spring, a spring or the like which is a separate member is provided. No spring material is required, the number of parts is reduced, and assembly and production are facilitated. The other configuration is the same as that of the embodiment shown in FIGS. 19 and 20, and the same operation and effect as in the above-described embodiment are exerted.

FIGS. 23 and 24 show the first to fourth embodiments of the present invention.
Another embodiment corresponding to FIGS. 7 and 8 is shown. In the switch structure of this embodiment, a substantially U-shaped elastic body 9 is curved in a plane along the surface of the switch base 1. ing. The rest of the configuration is the same as that of the embodiment shown in FIGS. 21 and 22, and the same operation and effect as in the above embodiment are exerted.

FIGS. 25 and 26 show the first to fourth embodiments of the present invention.
9 shows still another embodiment corresponding to FIG. 9, and in the switch structure of this embodiment, the contact spring 4 is operated, and the main operation body 6 for performing ON / OFF operation of the main switch is provided with the same contact spring 4; With the main operating body 6 pressed against the switch base 1 so that the contact spring 4 is elastically contacted with the switch base 1, the switch cover 10 that covers the main operating body 6 is moved to the switch base 1. Attach it to the base 1 and fix it.
On the inner surface of the main body 10, the main operating body 6 slides together with the sliding operation in the ON operation direction to form an inclined surface portion 11 which is pressed and guided toward the switch base 1 side.

In this case, the switch cover 10 is formed in a box shape opened downward, and the inclined surface portion 11 is disposed before and after the inner upper surface 39 in the sliding operation direction. One corner end of the main operating body 6 is slidably in contact with the one inclined surface portion 11, and an edge rib 41 is protruded from the other end of the upper surface 40 of the main operating body 6, and the edge rib is provided. 41 comes into sliding contact with the other inclined surface portion 11. Therefore, the main operating body 6 is guided in sliding contact with a good balance before and after the sliding operation.

Therefore, in the switch structure of this embodiment, the main operating body 6 slides on the two inclined surfaces 11 formed on the inner upper surface 39 of the switch cover 10 and is smoothly pressed and guided. When the operating body 6 is slid in the ON operation direction (FIG. 26), the contact spring 4 is strongly elastically contacted. When the operation body 6 is slid in the OFF operation direction (FIG. 25), the contact spring 4 is moved. You will be weakly hit. That is, the OFF state of the main switch (FIG. 25)
In this case, the load applied to the contact spring 4 is constantly reduced, and a state in which spring creek does not occur. Conversely, in the ON state of the main switch (FIG. 26), the load (spring contact pressure) applied to the contact spring 4 increases, the contact resistance decreases, and the electric loss decreases.

Therefore, for an electric device which is normally switched off, the spring reaction force against the switch cover 10 is reduced, the durability is improved and the life is prolonged, which is preferable. Is also improved. The remaining configuration is the same as that of the embodiment shown in FIGS. 6 to 11, and the same operation and effect as those of the above embodiment are exerted.

FIGS. 27 and 28 show the first to fourth embodiments of the present invention.
10 shows still another embodiment corresponding to FIG. 10, and in the switch structure of this embodiment, a main operation body 6 for operating a main switch to perform ON / OFF operation of a main switch by operating a contact spring 4 together with a switch base 1 and an electric device main body. The operation piece 14 is housed inside the housing 12 of S, and an operation opening 13 is formed in the housing 12, and an operation piece 14 protruding from the main operation body 6 projects from the operation opening 13. A dustproof cover 15 is provided around and around the operation opening 13.

In this case, the switch cover 10 is joined and fixed to the inner side surface 42 of the housing 12, and a concave portion 44 is formed on the entire joint surface 43 along the opening edge of the operation opening 13. A peripheral portion of the dustproof cover 15 is engaged and fixed at the location 44. Here, when the switch cover 10 is incorporated and mounted inside the housing 12 of the electric device body S, the dust cover
The peripheral edge portion 15 is pinched and fixed by the recess 44. Further, the dustproof cover 15 is formed in a bellows shape with a flexible sheet material such as a soft synthetic resin, rubber or the like, and easily expands and contracts with the operation of the operation piece 14.

Therefore, in the switch structure of this embodiment, the main operating body 6, the switch base 1, the contact spring 4,
The components such as the switch cover 10 are compactly housed inside the housing 12 of the electric device main body S, and the opening around the operation piece 14 protruding from the main operation body 6 is covered and closed by the dustproof cover 15. Intrusion of dust, dust, and the like into the switch portion is prevented, and the durability and reliability of the switch are improved. The rest of the configuration is the same as that of the embodiment shown in FIGS. 1 to 5, and the same operation and effect as in the above-described embodiment are exerted.

[0054]

As described above, in the switch structure according to the first aspect of the present invention, even if the main switch is in the ON state at the time of charging, current does not flow to the load circuit side such as the motor by the operating body. As a result, the charging current flows to the storage battery side for charging, and the charging failure can be eliminated.

In the switch structure according to the second aspect of the present invention, in particular, since the operating body made of an insulating material slides into and out between the switch contact portion and the contact spring to open and close, the opening and closing is performed. The operation is assured and smooth.

Further, in the switch structure according to the third aspect of the present invention, since the operating body is slid by rotating, the sliding operation mechanism is simplified.

Further, in the switch structure according to the fourth aspect of the present invention, even if the main operating body is strongly pressed, excessive elastic deformation of the contact spring is prevented by the convex rib, and the load applied to the contact spring is reduced. Also, stability and reliability can be improved.

Further, in the switch structure according to the fifth aspect of the present invention, particularly, the terminal portion is elastically deformed and is electrically connected only by being brought into contact with an external circuit. The simple connection structure is simplified, and the workability of the mounting is improved.

In the switch structure according to the sixth aspect of the present invention, in particular, the contact lubricant can be stored and held on the switch base surrounded by the peripheral rib, and the switch contact portion and the contact spring can be connected to each other. The resistance at the time of sliding contact between the switches can be reduced, and the change in the electrical contact resistance can be prevented, so that the durability and reliability of the switch can be secured.

Further, in the switch structure according to the present invention, since the operating body is urged by the elastic body to the position where the short-circuited circuit is closed, the opening and closing operation of the operating body is performed. It becomes smooth and easy to use.

Further, in the switch structure according to the eighth aspect of the present invention, since the elastic body is formed as a plate spring from the operating body and integrally protrudes, there is no need for a separate spring or the like. In addition, the number of parts is reduced, and the assembly and manufacture are facilitated.

In the switch structure according to the ninth aspect of the present invention, particularly, when the main operating body is slid in the ON operation direction, the contact spring is strongly elastically contacted and is slid in the OFF operation direction. In this case, the contact spring comes into elastic contact weakly, the spring reaction force against the switch cover is reduced, and the durability and reliability of the switch are improved.

In the switch structure according to the tenth aspect of the present invention, in particular, the main operation body and the switch base are accommodated in the main body of the electric equipment, and the dust-proof cover prevents dust and dirt from entering the switch portion. Thus, the durability and reliability of the switch are improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a switch structure according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the entirety of the same switch structure assembled as a switch block in a main switch OFF state.

FIG. 3 is a sectional view taken along line XX in FIG. 2;

FIG. 4 is a sectional view of the switch structure in a main switch ON state.

FIG. 5 is a cross-sectional view of the switch structure during charging.

FIG. 6 is a perspective view of a switch structure according to another embodiment in a main switch OFF state.

FIG. 7 is a cross-sectional view of the switch structure in a main switch ON state.

FIG. 8 is a cross-sectional view of the switch structure during charging.

FIG. 9 is a perspective view showing the entire switch assembly assembled as a switch block, at the time of charging.

FIG. 10 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 11 is a cross-sectional view showing a rechargeable electric device in which the switch structure is an electric razor incorporated and installed.

FIG. 12 is a perspective view of a switch structure according to still another embodiment in a main switch OFF state.

FIG. 13 is a sectional view of the same switch structure in a main switch ON state.

FIG. 14 is a perspective view showing a switch base on which an operation body having a switch structure according to yet another embodiment is mounted.

FIG. 15 is a perspective view showing a positional relationship between a switch base and an operating body during normal use of a switch structure according to still another embodiment.

FIG. 16 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 17 is a perspective view showing a positional relationship between a switch base and an operating body during normal use of a switch structure according to yet another embodiment.

FIG. 18 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 19 is a perspective view showing a positional relationship between a switch base and an operating body during normal use of a switch structure according to still another embodiment.

FIG. 20 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 21 is a perspective view showing a positional relationship between a switch base and an operating body during normal use of a switch structure according to still another embodiment.

FIG. 22 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 23 is a perspective view showing a positional relationship between a switch base and an operating body during normal use of a switch structure according to yet another embodiment.

FIG. 24 is a perspective view showing the positional relationship between the switch base and the operating body during charging of the switch structure.

FIG. 25 is a sectional view of a switch structure according to still another embodiment in a main switch OFF state.

FIG. 26 is a sectional view of the same switch structure in a main switch ON state.

FIG. 27 is a sectional view of a switch structure according to still another embodiment in a main switch OFF state.

FIG. 28 is a sectional view of the same switch structure in a main switch ON state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch base 2 Switch contact part 3 Terminal part 4 Contact spring 5 Operating body 6 Main operating body 7 Convex rib 8 Peripheral wall rib 9 Elastic body 10 Switch cover 11 Inclined surface part 12 Housing 13 Operation opening part 14 Operation piece 15 Dustproof cover S Electrical equipment body

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Kato 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Fumio Mihara 1048 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Works Co., Ltd. 5G025 AA05 AA13 BA07 CA02 DA05 5G051 JA08 JA39

Claims (10)

[Claims] A switch base is provided with a switch contact portion and a terminal portion connected to an external circuit, and the switch contact portion is detachably contacted with the switch contact portion to provide a switch contact spring for short-circuiting the switch contact portion. A switch structure for a rechargeable electric device including an operating body for opening and closing a short-circuited circuit in a main switch ON state short-circuited by a contact spring. 2. The method according to claim 1, wherein the operating body is formed of an insulating material, and the operating body slides into and out between the switch contact portion and the contact spring to open and close the short-circuited circuit. The switch structure according to claim 1, wherein: 3. The switch structure according to claim 2, wherein the operation body is pivotally connected to the switch base and is slid by rotation. 4. A main switch is turned on by operating a contact spring.
A contact rib is attached to the main operating body for performing the OFF operation, and the convex rib for suppressing the amount of elastic deformation of the contact spring by contacting the switch base side by contacting the switch base side is provided. The switch structure according to claim 1, wherein the switch structure is formed on a main operation body. 5. A method for applying elasticity to a terminal portion, elastically deforming the terminal portion and bringing the terminal portion into contact with an external circuit, setting the contacted connection state, and connecting the switch base to an electric device body provided with the external circuit. The switch structure according to any one of claims 1 to 3, wherein the switch structure is attached. 6. The switch base according to claim 1, wherein a peripheral wall rib for storing and holding a contact lubricant is formed on an outer periphery of a surface of the switch base on which the switch contact portion is provided. 2. The switch structure according to 1. 7. The switch structure according to claim 1, further comprising an elastic body for urging the operation body to a position where the short-circuited circuit is closed. 8. The switch structure according to claim 7, wherein the elastic body is formed in a leaf spring shape and integrally protruded from the operating body. 9. A main switch is turned on by operating a contact spring.
The main operation body that performs the OFF operation is provided with the same contact spring, and the main operation body is pressed against the switch base so that the contact spring is elastically contacted with the switch base. The switch cover that covers the body is attached to the switch base and fixed, and the main operation body is turned on on the inner surface of the switch cover.
The switch structure according to any one of claims 1 to 3, wherein an inclined surface portion that is slid in contact with the sliding operation in the operation direction and is pressed and guided toward the switch base is formed. 10. A main switch is operated by operating a contact spring.
A main operation body for N / OFF operation is housed inside the housing of the electric device main body together with the switch base, an operation opening is formed in the housing, and the main operation body is protruded from the operation opening to the main operation body. The switch structure according to any one of claims 1 to 3, further comprising a dustproof cover that protrudes the operation piece and covers and closes the operation opening around the operation piece.