JPS6219322Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a vacuum cleaner.

Conventionally, the relay switch of the transformer relay was connected to the power supply circuit connecting the electric blower and the power supply, and the remote control switch installed near the suction hose was turned on, the secondary side of the transformer relay was energized, and the relay switch was turned on. There is a remote control type vacuum cleaner that closes the power supply circuit. When assembling this type of device, electrical wiring is performed by joining and twisting the lead wires led out from the electric blower and transformer relay, and then fixing the twisted part with a closed-end connector. It is easy to cause incorrect wiring, which is extremely troublesome work and increases the number of man-hours. Further, there is a risk that the lead wires may be pinched by the electric blower or other parts and may be damaged, resulting in an electrical short circuit, and it is therefore necessary to protect the sheathing of the lead wires from high temperatures.

This invention was made in view of the above points, and the object is to provide a vacuum cleaner in which the electric blower and the transformer relay can be wired reliably and easily.

This invention is a vacuum cleaner in which a cord reel and an electric blower are sequentially inserted into a main body case with one side open and arranged in series. An electric blower is provided which is supported by fitting the front end to the support rubber held by the electric blower, and a support plate attached to the main body case is provided behind the electric blower, and the support rubber held by the support plate is provided at the rear of the electric blower. The rear end of the electric blower inserted from the axial direction is fitted and held by the electric blower, a connector is fixed to the rear outer circumference of the electric blower, and the connector inserted from the front is attached to the front side of the support plate. A support part is provided on the rear side to attach a transformer relay having a connecting terminal that resiliently contacts the power input terminal of the connector inserted forward. It is characterized by: Therefore, since the electric connection parts are connected at the same time as the electric blower is assembled to the support plate, assembly including the electric connection parts is easy, and the connector of the electric blower is held on the guide surface of the support plate. Therefore, the connection with the transformer relay is highly stable and reliable, and there is no need to prepare a special support member for the connector and the transformer relay.

An embodiment of this invention will be explained based on the drawings.
Reference numeral 1 denotes a main body case, and a dust collection case 2 is connected to the front surface of the main body case 1 by a clamp 3.
The main body case 1 is constructed by assembling a pair of left and right divided cases 4 and a front plate 7 in which an air passage 6 communicating with a dust collection chamber 5 is formed on the front surface.
The main body case 1 includes a support plate 8 facing the front plate 7.
is installed. A support shaft 10 of a cord reel 9 is supported between the support plate 8 and the rear wall of the main body case 1. A frame-shaped support portion 12 is formed on the support plate 8 and supports the transformer relay 11 in a surrounding manner. This transformer relay 11 has power input terminals A and B protruding toward the cord reel 9 side,
Connecting terminals C and D projecting toward the electric blower 13 and lead wires E and F connected to remote terminals described later.
It has The electric blower 13 is supported between the front plate 7 and the support plate 8 using support rubbers 14 and 15, and a connector 16 is fixed to the outer periphery. Power input terminals G and H of this connector 16 are held in holes 17 formed in the connector 16 so as to open toward the connection terminals C and D. Further, as shown in FIG. 3, a guide surface 18 is formed at the fitting portion between the connector 16 and the support portion 12 so as to have a tapered fit.

In such a configuration, first, the transformer relay 11 is assembled to the support plate 8, and one end of the support shaft 10 of the cord reel 9 is connected. At this time, the power cord 19 wound around the cord reel 9 and the power input terminals A and B of the transformer relay 11 are also connected. Although the connection means are not particularly shown,
For example, a ring contact connected to each pole of the power cord 19 is fixed to one side of the support plate 8 of the cord reel 9, and a contact plate connected to the power input terminals A and B of the transformer relay 11 is fixed to the support plate 8. Then, by assembling the cord reel 9 to the support plate 8, the ring contact and the contact plate come into contact. The cord reel 9 and support plate 8 assembled in this way are assembled into the main body case 1, and then the support rubbers 14 and 15 are fitted to both ends of the electric blower 13, and the rear support rubber 15 is attached to the support plate 8. The front plate 7 that fits in the center and supports the support rubber 14 is assembled last. By the assembly operation of the electric blower 13 at this time, the connector 11 is guided by the guide surface 18 and fitted into the support part 12, and the power input terminals G, H and the connection terminals C, D contact each other elastically. electrically connected. Lead wires E and F of the transformer relay 11 are connected to a connection part (described later) provided on a part of the front plate 7.

Therefore, by connecting the dust collection case 2 to the main body case 1 assembled in this way, the fourth
As shown in the figure, the lead wires E and F of the transformer relay 11, that is, the secondary side, are connected to the connecting portion J, which becomes connected when the main body case 1 and the dust collection case 2 are connected.
It is connected via K to remote terminals L and M provided inside the suction port of the dust collection case 2. A remote control switch 20 provided on the suction hose is connected to the secondary side of the transformer relay 11 by inserting the suction hose into the suction port. Further, the electric blower 13 and the primary side of the transformer relay 11 are connected in parallel to a power source 21 via a power cord 19, and the relay switch 22 of the transformer relay 11 is connected between the power source 21 and the electric blower 13.
Therefore, the remote control switch 20
When closed, the relay switch 22 is turned on by the excitation action on the secondary side of the transformer relay 11, and the electric blower 13 rotates.

Since this invention is configured as described above, the electrical connection parts are connected at the same time as the electric blower is assembled to the support plate, so assembly including the electric connection parts is easy, and the electric blower connector is attached to the support plate. Since it is held by the guide surface of the plate, the connection with the transformer relay is highly stable and reliable, and there is no need to prepare a special support member for the connector and the transformer relay.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a partially cutaway side view, Figure 2 is an exploded perspective view of the electric blower and transformer relay, Figure 3 is an enlarged horizontal sectional view showing the relationship between the transformer relay and connector, and Figure 4 is the electric circuit. It is a diagram. 1... Main body case, 11... Transformer relay,
12...Support part, 13...Electric blower, 16...
Connector, C, D... Connection terminal, G, H... Power input terminal.

Claims (1)

[Scope of utility model registration request] In a vacuum cleaner in which a cord reel and an electric blower are sequentially inserted through the opening into a main body case with one side open and arranged in series for storage, the cord reel and the electric blower are inserted with the front end facing the opening and are held by the front plate. An electric blower is provided which is supported by fitting the front end into the support rubber, and a support plate attached to the main body case is provided behind the electric blower, and the shaft is supported by the support rubber held by the support plate. A rear end of the electric blower inserted from the center is fitted and held, a connector is fixed to the rear outer circumference of the electric blower, and the connector inserted from the front is fitted and held on the front side of the support plate. The present invention is characterized in that a support part is provided on the rear side to which a transformer relay is attached, which forms a guide surface for connecting the connector, and has a connecting terminal that resiliently contacts a power input terminal of the connector inserted toward the front. Vacuum cleaner.