JPH019294Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to corded electrical equipment, and relates to a method for attaching a voltage changeover switch to the inside of the main body case of the equipment.

BACKGROUND OF THE INVENTION Conventionally, electrical equipment for trade has been equipped with a voltage conversion circuit and a voltage changeover switch for switching the voltage so that it can be adapted to household power supply voltages from all over the world. However, most of these switches are installed exposed on the bottom or side of the main body case of the device, or even if they are located inside the main body case, they are installed through a through hole provided in the main body case. Since it is configured to be operated with a tool such as a screwdriver, it not only looks bad, but also requires separate parts for mounting the switch, which creates a problem of labor during manufacturing. Additionally, there is a high risk of malfunction for devices that have a changeover switch on the surface of the main body case.

The present invention was developed in view of these conventional problems, and by utilizing the conventional basic structure of the device main body case and making a few improvements, it is possible to create a switch mounting device that is safe and has excellent operability. The purpose is to provide the following.

The structure is such that a cord storage chamber is partitioned by a first partitioning plate hanging down inside the device main case, and a second partitioning plate standing up from a bottom plate covering the bottom of the main unit case. The power cord is drawn into the motor storage chamber through the joint between the two plates, and the outlet of the cord storage chamber is opened and closed with a door. Reinforcing ribs are provided on the inner surfaces of both plates, and at least one of the two plates A notch is formed on one side and a recess is formed on the reinforcing rib.
The voltage switching switch is clamped and fixed by the reinforcing ribs and the plate so that the knob is exposed to the cord storage chamber side through the notch.

Therefore, the voltage changeover switch is located inside the main body case and is not visible from the outside.
This does not damage the appearance of the device, and since the user does not needlessly touch the switch, it is possible to prevent the switch from malfunctioning. Since the voltage changeover switch is fixed so that the knob is exposed to the cord storage chamber, the voltage changeover switch can be easily switched by opening the door, and is excellent in usability. Furthermore, since the switch is held between the plate and reinforcing ribs that partition the cord storage chamber, there is no need to use special switch fixing means, and work efficiency during manufacturing can be expected to be greatly improved. Since it is drawn into the motor storage chamber through the insertion hole formed between both plates, the wiring between the power cord and the switch in the motor storage chamber is shortened.
It has excellent practical effects, such as reducing the risk of wire breakage.

An embodiment in which the present invention is applied to a juicer will be described below with reference to the drawings.

Reference numeral 1 denotes a main body case of the Juicer, the bottom of the case 1 is covered with a bottom plate 2, and elastic legs 3, 3 are attached to the bottom plate 2. A motor 4 is built inside the main body case 1, and a cord storage chamber 5 is formed adjacent to the motor 4.
The cord storage chamber 5 is formed inside the main body case 1 by a first partitioning plate 6 that is formed to hang down from the upper part of the main body case 1, and a second partitioning plate 7 that is erected from the bottom plate 2. A power cord 8 for supplying current to the motor 4 is housed in the cord storage chamber 5, and the power cord 8 is connected to both the compartment plates 6 and 7. The motor 4 is drawn into the storage chamber through an insertion hole formed therebetween.

The two partition plates 6 and 7 are provided with notches 9 and 10 to form rectangular holes 12, respectively, in order to mount voltage changeover switches 11 at opposing positions. The switch 11 is made by joining a knob 15 and a contact portion 21 with a substrate 20 in between, and the notches 9 and 10 or the rectangular hole 12 are set smaller than the external dimensions of the substrate 20. Moreover, the knob 15 is configured to be able to freely slide within the rectangular hole 12. Further, the switch 11 is
It has two contacts 13 and 14 of 110V and 220V, and is attached to the inner surface of the rectangular hole 12 of both the plates 6 and 7, and the knob 15 is exposed to the outer surface through the rectangular hole 12. Both plates 6,
7 has reinforcing ribs 16, 1 facing each other vertically.
7... are formed, the respective ends of the ribs 16, 17... are exposed in the rectangular hole 12, and the base portions of the plates 6, 7 and the substrate 20 have a thickness of the substrate 20. Notch-shaped recess 1 with equal dimensions
8, 19 are formed, and the ribs 16,
17... is set equal to the width dimension of the contact portion 21. Therefore, the switch 11 has its substrate 20 fitted into the recesses 18 and 19 and is held between the plates 6 and 7, while also preventing the contact portion 21 of the switch 11 from shifting in the lateral direction. .

The code storage chamber 5 is provided with a door 22 that can be opened and closed. This door 22 is rotatable in the vertical direction via its hinge portion 23, and has an engaging claw 24 at the top that is pulled into the upper edge of the cord outlet 25 provided on the outer peripheral wall of the cord storage chamber 5. The lower end of the door 22 is attached to the lower part of the main body case 1 by press-fitting and fixing a projection 26 thereto.

A container 28 is placed on the upper part of the main body case 1, and a centrifuge cage (not shown) or the like is disposed therein, and a juice spout 27 is formed on the peripheral wall. A lid 30 is provided which is closed and has a material input cylinder 29.

Next, the operation of the present invention will be explained.

First, the first partition plate 6 on the main body case 1 side.
Temporarily position the switch 11 by clamping the substrate 20 of the switch 11 between the plate 6 and the rib 16 via the recess 18 while aligning the contact portion 21 of the voltage changeover switch 11 with the reinforcing rib 16 in the notch 9 of the switch. The second plate 7 and ribs 17 of the bottom plate 2 are attached in correspondence with the first plate 6 and the ribs 16, with the substrate 20 sandwiched therebetween, and the bottom surface of the main body case 1 is attached to the bottom plate 2. , and the switch 11 is mounted and arranged on both the plates 6 and 7. Then, the power cord 8, which is drawn into the motor 4 storage chamber of the main body case 1 through the insertion hole formed between the plates 6 and 7, is connected to the switch 11, the motor 4, and the like.

Voltage switching is performed as follows.

When the door 22 of the main body case 1 is opened and the power cord 8 inside is pulled out, the switch knob 15 can be seen at the back of the cord storage chamber 5. This pick 15
A groove 31 is cut approximately in the center, and when the tip of a screwdriver etc. is brought into contact with the groove 31 and moved upward as shown in Figure 4 A and B, the voltage will be 110V, and when moved downward, the voltage will be 220V.
Switch the contact to . At this time, the switch 11
receives an inward force from a screwdriver or the like and tries to move away from the plates 6, 7, but the switch 11 is moved laterally and inwardly by the reinforcing ribs 16, 7.
17 and cannot be deviated from.

Next, to explain the circuit diagram in FIG. 3, when the switch 11 is in the position shown in FIG. , stator 35,3
6 are connected in parallel, and the current from the power supply 34 passes through both stators 35 and 36 and enters the motor 4.

Further, when the switch 11 is in the position shown in FIG. 4B, the contact terminals 32 and 33 are located inside the contact portion 21 at the positions indicated by the broken lines in FIG. 3, and the stators 35 and 36 are connected in series. power supply 34
The current from enters the motor 4 through the stators 35 and 36.

As described above, according to the present invention, a voltage changeover switch can be easily installed using the plates and reinforcing ribs that partition the cord storage chamber without requiring a separate installation device, and the power cord can also be attached to both plates. Since the wiring is drawn into the motor storage chamber through the insertion hole formed between the two, the wiring inside the motor storage chamber becomes shorter, wiring work becomes easier, and the risk of disconnection or the like can be reduced. In addition, it eliminates the conventional disadvantage of exposing the switch knob to the outside, prevents malfunction of the switch and allows safe use, and allows easy operation by simply opening the door when changing the switch. Its practical effects are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a front view (partially longitudinal sectional view) of a juicer that is an embodiment of the present invention, and Fig. 2 is a B--B in Fig. 1.
3 is a circuit diagram of the Juicer, and FIGS. 4A and 4B are views seen from A-A' in FIG. 1 to explain the operating state. 1... Main body case, 6, 7... First and second partition plates, 2... Bottom plate, 5... Cord storage chamber, 9, 10... Notch, 11... Switch, 1
6, 17... Reinforcement rib, 18, 19... Recess.

Claims (1)

[Scope of utility model registration request] A cord storage chamber and a motor storage chamber are partitioned by a first partitioning plate that hangs down inside the device main case and a second partitioning plate that stands up from a bottom plate that covers the bottom of the main unit case. Then, the power cord is drawn from the cord storage chamber into the motor storage chamber through the insertion hole formed between the two plates, and the outlet of the cord storage chamber is opened and closed with a door, and the inner surface of both the plates is closed. a reinforcing rib is provided on the side, a notch is formed in at least one of the plates, and a recess is formed in the reinforcing rib;
A switch mounting device characterized in that a voltage switching switch is clamped and fixed by the reinforcing rib and both plates so that the knob is exposed to the cord storage chamber side through the notch.