JPH02155439A - Charging type electric device - Google Patents

Abstract

PURPOSE:To simplify a switching structure irrespective of the number of input terminals and to effectively perform the switching operation by manually switching the input terminals through a changeover switch. CONSTITUTION:In an electric device containing a secondary cell 5 in a body case 1 and having a plurality of types of input terminals 7 for supplying power from the exterior of the body case to the secondary cell 5, the input terminals 7 used to supply power of the secondary cell 5 is manually selectively switched by a changeover switch 9. As the input terminal 7, a pin-shaped stationary terminal 11 to be engaged with the socket of a power cord base end, and a movable terminal 12 in which a plug cutter electrode to be engaged with a plug socket is telescopically extended or retracted from the body case 1 can be employed. Further, the switching state of the input terminals 7 by the changeover switch 9 is individually displayed on a display unit 8 such as lamps.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to rechargeable electric fi-fi devices, particularly those equipped with a plurality of types of input terminals for power supply. [Conventional Technique vR] The present applicant has previously provided a power supply terminal with a type fixed to the main body case and a movable type whose electrode part protrudes from the main body case side when in use. proposed a system that automatically stops power supply through a fixed terminal when the terminal is in use (for example, see Japanese Utility Model Application No. 63-4079). [Problems to be Solved by the Invention] However, such switching in conjunction with the protrusion and retraction of electrodes inevitably increases the number of mechanical sliding parts, inevitably complicates the structure, and furthermore, As the number increases, switching itself becomes difficult. Furthermore, the currently usable input terminals are unclear, which may cause confusion for the user. The present invention has been made in view of the above problems, and allows the switching operation of usable input terminals to be performed easily and reliably, and has a relatively simple structure for switching input terminals regardless of the number of input terminals. The purpose is to provide rechargeable electrical equipment. A further object of the present invention is to provide an electrical device in which the switching state of an input terminal can be easily grasped. [Means for solving the problems] As schematically shown in FIG. 1, the present invention includes a main body case]
An input used to supply power to the secondary battery 5 in an electrical device that houses a secondary battery 5 and is equipped with a plurality of types of input terminals 7 for supplying power to the secondary battery 5 from outside the main body case 1. It is characterized in that the terminal 7 is provided with a changeover switch 9 so that it can be selectively switched manually. The input terminals 7 include a pin-shaped fixed terminal 11 into which a socket at the base end of the power cord fits, and a movable terminal 12 into which a plug blade electrode that fits into an outlet retracts from the main body case l.
is possible. Further, it is preferable that the switching states of the input terminals 7 by the changeover switch 9 are individually displayed on a display section 8 such as a lamp. [Function] With the above configuration, when using the built-in secondary battery 5 in the main body case 1 as a power source, the main switch 32
By turning on, power is supplied from the secondary battery 5 toward the gain 4. Here, if the amount of charge of the secondary battery 5 is insufficient, the type of input terminal 7 is selected according to the usage mode. Next, by switching the selector switch 9 according to the selected input terminal 7 and connecting the input terminal to a predetermined external power source such as a commercial AC power source, charging of the secondary battery 5 is started. Further, when the input terminal 7 is selected by changing the changeover switch 9, the display on the display section 8 is changed in conjunction with the movement of the changeover switch 9, and the currently selected input terminal 7 is specified and the operator is notified. . [Example J] The present invention will be described below based on an example in which the present invention is implemented in a rechargeable electric shaver, but it is needless to say that the present invention is not limited to this and can be implemented in substantially the same way in various electric appliances. As shown in FIGS. 2 to 4, the electric shaver according to the present invention includes a razor section 2 consisting of an outer cutter and an inner cutter on the upper part of the main body case 1, as in the conventional case, and also has a razor section 2 inside the main body case 1. A load 4 including a motor 3 that drives the inner blade, and a charging section including a secondary battery 5

[3], and is further provided with an input terminal 7 at the bottom of the main body case 1 for supplying power to the charging section 6. The input terminal 7 consists of a fixed input terminal 11 provided for connection to the power cord 10 and a movable input terminal 7-12 provided for connection to a wall outlet. The fixed terminal 11 has two pin-shaped electrodes 14 from the insulating base 13.
The electrode 14 is provided in a protruding manner, and the tip of the electrode 14 is set in the insertion hole 15 provided in the main body case 1 at a position slightly deeper than the circumferential surface of the main body case 1. Therefore, by inserting the socket 16 at the proximal end of the power cord 10 into the insertion hole 15 to connect the power cord 10 and the fixed terminal 11, and by inserting the plug at the tip of the power cord 10 into an outlet, Connect the commercial power supply to main case 1
It can be supplied inside. On the other hand, the movable terminal [21] is a plug blade type [21] in which two pieces of a strip-like plug blade type [21] corresponding to a household outlet are installed on an insulating base 20. The electrode 21 is slid on the provided rail 22, and the storage position of the electrode 21 in the main body case 1 and the position of its exit from the main body case 1 are respectively locked by engagement with the operation knob 23 and the groove 24. At the same time, the base end of the electrode 2 and the charging part 6
A coiled conducting wire 25 is used to connect between them. Therefore, the electrode 21 is normally stored in the main case 1 as shown by the solid line in FIG. By plugging 21 into a wall outlet, the plug blade? ft1
2], commercial power can be directly supplied to the inside of the main body case l through a conductor 25 without going through a contact point. The charging unit 6 performs full-wave rectification of the AC power input from the input terminal 7 with the diode bridge 30, and then converts the AC power into DC-DC:F.
The voltage is stepped down by an inverter 31 and a charging current is supplied to a secondary battery 5 such as a nickel-cadmium battery. The output from the charging section 6 is supplied to the motor 3 via a main switch 32 arranged at the center of the front of the main body case 1. The present invention provides a selector switch 9 that selectively supplies power input from the fixed terminal 11 and movable terminal 12 to the charging section 6 inside the main body case l, and displays the selected state of the input terminal 7. The structure of the display section 8 is distinctive. For example, a slide type changeover switch 9 is disposed at the lower part of the main body case 1. The changeover switch 9 includes a 1111 switch 35 that is normally turned on when the operating knob 34 is pressed, and a two-circuit, two-contact type slide switch 36 that is switched on by sliding the operating knob 34.
6, the input terminal 7 is switched in the first l837,
The second circuit 38 switches the display of the switching state,
Furthermore, the display timing is regulated by the normally open switch 35. That is, the positive side output ends of the diode bridges 30 provided individually to the fixed terminal 11 and the movable V1 terminal 12 are individually connected to the fixed contacts of the first UJn 37, and the movable contacts and the negative side outputs of the diode bridges 30 are connected individually to the fixed contacts of the first UJn 37. The end is connected to the input side of the converter 31. In addition, a series connection of a light emitting diode 40 and a protective resistor 41 is individually connected to the fixed contact of the second circuit 38, and the movable contact is connected to the positive pole of the secondary battery 5 via the normally open switch 35, and the light is emitted. A diode 40 is arranged near the input terminal 7 on the peripheral surface of the main body case 1. Therefore, irrespective of the usage state of the input terminal 7, the input terminal 7 that can be used is changed in conjunction with the switching of the changeover switch 9. In addition, the input terminal 7 that can be used at the moment is configured such that when the operating knob 34 of the changeover switch 9 is pressed, the light emitting diode 40 connected to the second circuit 38 is energized from the secondary battery 5 to cause it to emit light.
Notify the operator visually. Furthermore, when the changeover switch 9 is operated to switch the input terminal 7, the circuit connecting the secondary pond 5 and the light emitting diode 40 is also changed, and the display position of the light emitting diode 40 on the main body case 1 is changed. Note that the positional relationship and configuration of the input terminal 7, light emitting diode 40, and changeover switch 9 can be changed as appropriate depending on the type of electrical equipment to which it is applied.For example, the configuration of the movable terminal may be replaced with a sliding electrode type. It is also possible to change the structure to swing or rotate, and the electrode can also be connected to the charging section 6 via a trI moving contact in substantially the same way as in the conventional case. Alternatively, the number of light emitting diodes 40 provided in the display section 8 may be one, and the light emitting display may be performed only when the changeover switch 9 is switched to one input terminal side.For example, as shown in FIG. When the switch 9 is switched to the movable terminal 12 side and the electrode 21 of the movable terminal 12 is operated to protrude from the main body case, the normally open switch 39 is turned on, and it is possible to cause the light emitting diode 40 to emit light. . Furthermore, the lamp may be configured to emit light only when power is supplied from an external power source, and the display on the display section 8 may be displayed in figures or characters using a low power consumption display element such as a liquid crystal. It is. Furthermore, the two mi of the input terminal 7 may be simultaneously switched directly by the changeover switch 9 without going through the diode bridge 30. When using the fixed terminal 11 via the cord 10, it can be used directly with commercial power when the main switch 320 is on, and the secondary battery 5 can be charged when the main switch 32 is off, so it is used for so-called 2-way type equipment. It is preferable to do so. [Effects of the Invention] As described above, in the present invention, the input terminals 7 are manually switched via the changeover switch 9, so the switching structure is simple regardless of the number of input terminals 7, and a reliable switching operation is possible. . Furthermore, since such switching states can be displayed individually on the display section 8, there are many advantages, such as being able to prevent operational misunderstandings as much as possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the basic configuration of the present invention. Figures 2 to 4 show an example of an electric shaver in which the present invention is applied, and Figure ptS2 is a perspective view showing the external shape, and Figure 3.
The figure is a partial sectional view of the main part, and FIG. 4 is an electric circuit diagram. rts5 is an electric circuit diagram showing another embodiment of the display unit. 1...Body case, 5...Secondary battery, 6...
...Charging part, 7...Input terminal, 8...
- Display section, 9... Changeover switch, 11... Fixed terminal, 12... Movable terminal, 40... Light emitting diode. Written by Satoshi Takami Doma tongue book, Figure 3 of Fu Zhaofa

Claims (1)

[Claims] 1. A secondary battery (5) built into the main case (1), and multiple types of input terminals that enable power supply to the secondary battery (5) from outside the main case (1). (7); and a changeover switch (9) that enables manual switching of an input terminal (7) for supplying power to a secondary battery (5). 2. The input terminal (7) includes a pin-shaped fixed terminal (11) into which the socket (16) of the power cord (10) is fitted;
Claim 1, wherein the plug blade electrode (21) that fits into the outlet is a movable terminal (12) that protrudes and retracts from the main body case (1) side.
Rechargeable electrical equipment as described. 3. The rechargeable electric device according to claim 1 or 2, wherein the switching state of the input terminal (7) by the changeover switch (9) is individually displayed on the display section (8).