JPS6036213Y2 - vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a vacuum cleaner that sucks in and cleans dust using the vacuum suction power of an electric blower.

[Prior Art] Some vacuum cleaners are equipped with a noise prevention capacitor.

Generally, the above-mentioned capacitor is directly attached to the outer surface of the outer metal part of the electric blower for grounding, so it is likely to deteriorate due to heat transfer from the electric blower and cause a failure.

Therefore, as shown in Japanese Utility Model Application Laid-Open No. 53-112746, a conventional example is known in which the condenser is provided apart from the electric blower.

This product has a capacitor fitting part formed on the support plate that supports the rear end of the electric blower, a capacitor is fitted here, a ground plate is connected to the capacitor via a covered ground terminal wire, and this ground plate is inserted between the rear end of the electric blower and a vibration-proof cushion that fits into the rear end to provide grounding.

[Problem that the invention attempts to solve]

However, in the above conventional technology, the conductive structure between the electric blower and the capacitor requires a covered ground terminal wire and a ground plate, so the number of components is large, and the conductive structure requires soldering. The work is troublesome and therefore the manufacturing cost is high.

Furthermore, the contact between the ground plate and the electric blower is made by sandwiching the ground plate with a vibration-proof cushion, which makes the connection work relatively troublesome. In addition, there is a risk that contact may become unstable due to vibrations of the electric blower, etc.

1. Also, since the capacitor is simply held in place by being fitted into the fitting part, there is a risk that the capacitor may easily come off due to dimensional tolerances, electric power, etc.

[Means for solving problems]

In addition to solving the above-mentioned conventional problems, the present invention aims to prevent this solution from becoming a factor that increases the length of the vacuum cleaner main body case. A wiring board is attached to the main body case within the axial length range of the electric blower and away from the side of the electric blower, and electrically connected to the electric blower on one side of the wiring board on the circumferential side of the electric blower. The ground part of the capacitor and the outer metal part of the electric blower are connected by an elastic conductor, and one end of the conductor is connected to the wiring board. In addition to engaging and supporting, the other end is provided in elastic contact with the circumferential surface of the outer shell metal part, and the middle part of the conductor is in elastic contact with the grounding part of the capacitor and is not pressed against the capacitor storage part. It is characterized by

[Effect]

According to the present invention, a wiring board is attached to the main body case of the vacuum cleaner, and electrical parts including noise prevention capacitors, fuses, terminals, etc. are mounted on one side of the board. This makes it easier to assemble, improves ease of assembly, makes it easier to detect electrical failures, and makes it easier to replace failed parts, providing better serviceability.

At the same time, by attaching the main body case of the electric blower and the wiring board, the capacitor can be grounded to the peripheral surface of the outer metal part of the electric blower through a single elastic conductor. Since the connection is made by
No screwing or soldering is required.

Therefore, ease of assembly can be improved.

Since the conductor elastically contacts the electric blower and the capacitor to form a ground connection, stable contact can be maintained regardless of dimensional tolerances and the effects of vibration.

Furthermore, since the conductor is provided in elastic contact with the capacitor, the capacitor can be reliably pressed against and held in the housing portion of the wiring board, etc., regardless of dimensional tolerances.

Moreover, since the wiring board was placed within the axial length range of the electric blower and away from the side of the electric blower, and the capacitor was held on this board, the condenser could deteriorate due to conduction heat from the electric blower and cause failure. Not only can this be prevented, but also the electric blower and a portion of the capacitor are not lined up along the axial direction, thereby preventing the length of the vacuum cleaner main body case from increasing.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In Figure 1, 1 indicates the rear case, and 2 ? The first case is shown.

Reference numeral 3 denotes an air intake port 1, and a filter (not shown) is provided inside the front case 2, so that the dust inhaled together with the air is stored in the front case.

Reference numeral 4 denotes an electric blower having a sound absorbing material wrapped around its outer periphery, which is built into the rear case 1 and supported between case components formed by dividing the rear case 1 into left and right halves.

Reference numeral 5 denotes a single wiring board, which is supported by ribs 6 provided in the left and right case components of the rear case 1, and is within the axial length range of the electric blower 4 and within the length of the electric blower 4. They are placed apart on the sides.

Electrical components such as a capacitor 7 and a fuse 8 are housed and attached inside one surface of the wiring board 5 on the side surrounding the electric blower 4.

A cord reel 9 is provided below the wiring board 5.

10 is a vacuum cleaner handle, which is provided at the upper part of the rear case 1.

Reference numeral 11 denotes wheels for movement, which are used together with casters 12 attached to the front case 2 when moving the vacuum cleaner.

The wiring board 5 has a box-shaped container shape as shown in FIG. 2, and the ribs 6 are engaged with mounting portions 13 formed on the outer periphery of the wiring board 5.

The inside of the negative surface of the wiring board 5 has electrode plates 14 and 15.
．． 16, and each of these electrode plates has connection terminal portions 14at 14b* 14c, 15a.
v 15bt 15c, fuse 8 holding part 15d,
16d is provided.

The electrical connection of the connection terminal portion is made by soldering or detachable terminals.

Reference numeral 17 denotes a capacitor housing portion formed on the wiring board 5, and a portion thereof is provided with claws 19 for holding and fixing the capacitor 7.

One end portion of a conductor 18 is attached to this storage portion 17 .

The conductor 18 may be made of an elastic metal plate, but the conductor 18 shown in FIG. 3 is made of an elastic metal wire.

A stopper 20 is provided at one end of the conductor 18 to prevent removal.
is formed, which is inserted into and engaged with an engagement hole (not shown) provided at the bottom of the storage portion 17, and is prevented from being removed.

In FIG. 2, reference numeral 21 denotes a holding part for remote control, and a remote control relay cover 22 having a remote control relay mounted therein is attached.

This remote control relay cover 22 is attached to the upper part of the wiring board 5 in FIG.

In addition, since the outer circumference of the surface of the capacitor 7 that becomes the grounding part is covered with the conductor 18 that comes into contact with it, the conductor 18
When the conductor 18 is stored and attached to the capacitor storage portion 17, the conductor 18 comes into elastic contact with the capacitor 7 and is electrically connected.

By mounting the wiring board 5 away from the electric blower 4 in a position where it is not exposed to exhaust air as shown in FIG. You can.

The electrical wiring relationship at this time is as shown in FIG.

In Figure 4, 4 is an electric blower, 7 is a condenser,
23 is a remote controller, 24 is a closing contact, 25 is a switching contact of the remote controller, 26 is a small transformer, 8 is a fuse, 9 is a cord reel, and 27 is a power terminal. There is.

Therefore, as described above, the wiring board 5 is attached to the rear case 1 of the vacuum cleaner body, and electrical components such as the noise prevention capacitor 7 and the fuse 8 are housed on one side of this board 5.
The configuration in which electrical components including terminals 14a to 14c, 15a to 15c, etc. are mounted together makes wiring between each electrical component easier and improves assemblage. It also makes it easier to discover electrical failures and eliminate faulty parts. Easy to replace and good service.

By attaching the electric blower 4 and the wiring board 5 to the rear case 1, the capacitor 7 can be grounded to the circumferential surface of the outer metal part 31 of the electric blower 4 via a single elastic conductor 18. In this case, since the conductor 18 is connected by elastic contact, screwing, soldering, etc. are not required.

Therefore, ease of assembly can be improved.

Because the conductor 18 elastically contacts the electric blower 4 and the capacitor 7 to form a ground connection, stable contact can be maintained regardless of dimensional tolerances and the effects of vibration.

Since the conductor 18 is provided in elastic contact with the capacitor 7, the capacitor 7 can be reliably pressed and held against the housing portion of the wiring board 5, etc., regardless of dimensional tolerances.

Since the wiring board 5 is provided within the axial length range of the electric blower 4 and separated to the side of the electric blower 4, and the capacitor 7 is held thereon, the conduction of the capacitor 7 from the electric blower 4 is reduced. Not only can deterioration and failure due to heat be prevented, but the electric blower 4 and the condenser 7 are not lined up along the axial direction, so the vacuum cleaner body case that combines the rear case 1 and this and the front case 2 It is possible to prevent the length from increasing.

[Effect of idea]

According to the present invention, which has the gist of the configuration described in the above-mentioned utility model registration claims, it is possible to eliminate thermal deterioration of the noise prevention condenser without increasing the length of the vacuum cleaner body, and to improve assembly efficiency. It is possible to provide a vacuum cleaner with excellent serviceability and highly reliable ground connection.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main parts showing one embodiment of the present invention;
The figure is a partially exploded perspective view, Figure 3 is a perspective view of a conductor, Figure 4 is a perspective view of a conductor, and Figure 4 is a perspective view of a conductor.
The figure is a wiring diagram of the proposed vacuum cleaner. 4... Electric blower, 5... Wiring board,
7... Capacitor storage section, 8... Fuse, 17... Capacitor storage section, 18.
...Conductor, 20...Stopping part, 31...
...Outer shell metal part.

Claims (1)

[Scope of utility model registration request] A wiring board is attached to the vacuum cleaner body case with a built-in electric blower within the axial length range of the electric blower and away from the side of the electric blower, and on one surface of the wiring board on the circumferential side of the electric blower, Electrical parts such as a capacitor and a fuse that are electrically connected to the electric blower are stored, and the grounding part of the capacitor and the circumferential surface of the outer metal part of the electric blower are connected with an elastic conductor. , one end of which is engaged with and supported by the wiring board, and the other end of which is provided in elastic contact with the circumferential surface of the outer shell metal part, and the middle part of the conductor is in elastic contact with the grounding part of the capacitor, thereby forming a capacitor storage section. A vacuum cleaner characterized in that the pressure is retained.