JP2014236898A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rechargeable vacuum cleaner capable of securing electrical safety and preventing an electrical contact failure due to adhesion of dust to a terminal, etc.SOLUTION: A vacuum cleaner includes: a vacuum cleaner body 1 having a built-in electric blower 11 for generating suction air and a built-in secondary battery, and including a body terminal 10 connected to the secondary battery; and a charging stand 21 having a placement part 21a for placing the vacuum cleaner body 1 and a charging terminal 27 connected to the body terminal 10 in a state that the vacuum cleaner body 1 is placed on the placement part 21a. A body terminal housing part 8 for housing the body terminal 10 is formed in the vacuum cleaner body 1, and an opening 8a into which the charging terminal 27 is inserted is formed in the body terminal housing part 8. A shutter B32 is provided for closing the opening 8a in a manner to be freely opened/closed, and an opening mechanism is provided for opening the shutter B32 when the vacuum cleaner body 1 is placed on the charging stand 21.

Description

  The present invention relates to a rechargeable electric vacuum cleaner.

  In recent years, a rechargeable electric vacuum cleaner includes an electric blower that generates suction air, a secondary battery that supplies power to the electric blower, a vacuum cleaner body having a main body terminal connected to the secondary battery, and the vacuum cleaner. The mounting part which mounts a main body and the charging stand which has a charging terminal in the above-mentioned mounting part are provided (for example, refer patent document 1).

JP 2004-113600 A

  When the vacuum cleaner main body is not placed on the charging stand, the main body terminal of the vacuum cleaner main body and the charging terminal of the charging stand are exposed to the outside. When the main body of the vacuum cleaner is not placed on the charging stand, the terminals of the main body of the vacuum cleaner and the charging stand are exposed to the outside and can be touched by the user. Although it is a structure which may contact, since the output voltage of a secondary battery and a charging stand is low, the electrical safety was ensured.

  However, since the output voltage of the secondary battery is low, the suction force when using the vacuum cleaner is low and the usage time is short. Furthermore, there is a possibility that charging may not be possible even though the electrical contact failure due to dust attached to the main body terminal at the time of cleaning operation etc. and the vacuum cleaner main body is placed on the charging stand Had problems.

  The present invention solves the above-described conventional problems, and provides a rechargeable vacuum cleaner that can ensure electrical safety and prevent poor electrical contact due to dust adhering to the body terminal. Objective.

  In order to solve the conventional problems, a rechargeable vacuum cleaner of the present invention includes an electric blower that generates suction air and a secondary battery that supplies electric power to the electric blower, and is connected to the secondary battery. A vacuum cleaner main body having a main body terminal, a mounting portion for mounting the vacuum cleaner main body, and a charging stand having a charging terminal connected to the main body terminal in a state where the vacuum cleaner main body is mounted on the mounting portion. A body terminal housing portion for housing the body terminal is formed in the vacuum cleaner body, an opening portion for inserting the charging terminal is formed in the body terminal housing portion, and the opening portion is closed openably and closably. And a release mechanism that opens the shutter when the cleaner body is placed on the charging stand.

  The rechargeable vacuum cleaner of the present invention can prevent electrical contact failure due to adhesion of dust to the main body terminal.

External appearance perspective view of the vacuum cleaner main body in Embodiment 1 of this invention External perspective view of the vacuum cleaner viewed from below Rear view of the vacuum cleaner AA longitudinal sectional view of the vacuum cleaner main body in FIG. 1 is an external perspective view of a charging stand according to Embodiment 1 of the present invention. Top view of the charging stand (A) BB longitudinal cross-sectional view in FIG. 6 of the charging stand, (b) BB vertical cross-sectional view showing the movable state of the shutter opening / closing operation unit in FIG. 6 of the charging stand. CC longitudinal cross-sectional view of the charging stand in FIG. Side view showing the charging stand mounting state of the vacuum cleaner body The side view seen from the upper surface side of the vacuum cleaner main body which shows the charging stand mounting state of the vacuum cleaner main body DD longitudinal cross-sectional view in FIG. 10 which shows the charging stand mounting state of the vacuum cleaner main body EE longitudinal cross-sectional view in FIG. 10 which shows the charging stand mounting state of the vacuum cleaner main body The principal part expanded sectional view which shows the state just before the connection of the main body terminal of the vacuum cleaner main body and the charging terminal of the charging stand The principal part expanded sectional view which shows the connection state of the main body terminal of the vacuum cleaner main body, and the charging terminal of a charging stand

  A first invention includes an electric blower that emits suction air and a secondary battery that supplies electric power to the electric blower, and has a main body terminal connected to the secondary battery, and the vacuum cleaner main body. A main body for storing the main body terminal in the vacuum cleaner main body, and a charging base having a charging terminal connected to the main body terminal in a state where the main body of the vacuum cleaner is placed on the mounting portion. Forming a terminal housing portion, forming an opening into which the charging terminal is inserted into the main body terminal housing portion, and providing a shutter for closing the opening so as to be freely opened and closed; An opening mechanism is provided that opens the shutter when placed.

  With the above configuration, it is possible to prevent dust from adhering to the main body terminal even when the bottom surface side of the vacuum cleaner main body is in contact with the floor surface during cleaning use. In addition, electrical safety can be ensured, and for example, by setting the voltage of the secondary battery high, it is possible to improve the suction force and extend the cleaning use time. Furthermore, the power supply voltage and current settings for the secondary battery can be increased to shorten the time until the secondary battery is fully charged.

  According to a second aspect of the present invention, in the vacuum cleaner of the first aspect of the invention, the shutter is formed by placing the cleaner main body on the charging stand by forming an inclined surface on the shutter that is opened by contact with the charging terminal. Can be opened to bring the main body terminal and the charging terminal into contact with each other, improving operability.

  According to a third aspect of the present invention, in the electric vacuum cleaner of the first or second aspect of the invention, the main body terminal housing portion is configured not to protrude in the outer peripheral direction from the bottom surface or the bottom rear surface of the main body of the vacuum cleaner. In addition to preventing scratches on the surface, etc., it also prevents dust from adhering to the main unit terminals, prevents dust adhering to the main unit terminal storage area from being transferred to the terminals on the charging base, and poor terminal connection Can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.
(Embodiment 1)
The configuration of the main body of the electric vacuum cleaner according to the first embodiment of the present invention will be described with reference to FIGS.

1 is an external perspective view of the vacuum cleaner main body according to the present embodiment, FIG. 2 is an external perspective view of the vacuum cleaner main body viewed from the lower rear, FIG. 3 is a rear view of the vacuum cleaner main body, and FIG. It is AA longitudinal cross-sectional view in FIG. 3 of a main body.

  The vacuum cleaner main body 1 in this embodiment has an electric blower 11 and a secondary battery (not shown) built in the rear part, and a dust collector 4 for separating and collecting dust is detachably attached to the front part. ing. A pair of traveling wheels 2a are rotatably attached to both rear sides of the vacuum cleaner body 1, and a traveling caster 2b is also attached to the bottom front portion. The front of the vacuum cleaner body 1 is provided with an intake port 3 to which a connection pipe provided at one end of a hose (not shown) is detachably connected, and the other end of the hose is connected via an extension pipe. A floor suction tool (not shown) is detachably connected. A handle 5 that is a hand-held portion when being carried is disposed above the cleaner body 1, and an exhaust port 6 that discharges exhaust from the electric blower 11 to the outside of the body is formed on the rear surface of the cleaner body 1. Yes.

  A storage recess 7 is formed at a position below the exhaust port 6 of the vacuum cleaner main body 1 from the rear surface to the bottom surface, and a main body terminal storage portion 8 having a substantially rectangular tube shape is provided in the storage recess 7. An opening 8a is formed on the rear end surface of the main body terminal storage portion 8 so as to communicate with the storage portion of the main body terminal 10 so that the main body terminal 10 faces the outside. The shutter opening / closing operation contact portion 9 is provided. As shown in FIG. 4, the main body terminal storage portion 8 and the shutter opening / closing operation contact portion 9 are disposed so as not to protrude from the storage recess 7 to the outer surface side of the cleaner body 1. The contact of the opening / closing operation contact portion 9 to the floor surface is prevented.

  Next, the structure of the charging stand 21 will be described with reference to FIGS.

  FIG. 5 is an external perspective view of the charging stand in the present embodiment, FIG. 6 is a top view of the charging stand, FIG. 7A is a vertical cross-sectional view of FIG. ) Is a BB longitudinal sectional view showing a movable state of the shutter opening / closing operation section 25 of the charging stand, and FIG. 8 is a CC longitudinal sectional view of the charging stand in FIG.

  In FIG. 5, the charging stand 21 is provided with a mounting portion 21 a for storing and mounting the cleaner body 1 on the upper surface, and a charging terminal storage portion 22. The charging terminal storage unit 22 stores the charging terminal 27, forms a charging terminal opening 23 that faces the charging terminal 27 and faces the charging terminal 27 to the outside, and shields the inside of the charging terminal opening 23 so as to be freely opened and closed. A shutter 24 is provided. The charging terminal storage unit 22 has an opening 22 a that is close to the charging terminal opening 23 and allows the shutter opening / closing operation unit 25 to face the charging terminal storage unit 22. The shutter opening / closing operation unit 25 is configured not to protrude from the outer shell surface of the charging terminal storage unit 22 through the opening 22a, and the shutter opening / closing operation unit 25 cannot be operated by a fallen object or artificially.

  7A and 7B are longitudinal sectional views of the charging base 21 showing the shutter opening / closing operation unit 25. FIG. When the cleaner main body 1 is placed on the charging stand 21, the shutter opening / closing operation portion 25 is operated by inserting the shutter opening / closing operation contact portion 9 of the cleaner main body 1 through the opening 22a. The shutter opening / closing operation contact portion 9 and the shutter opening / closing operation portion 25 constitute an opening / closing mechanism of the shutter 24.

  The shutter opening / closing operation unit 25 and the shutter 24 are configured to be linked by a shaft 26. As shown in FIG. 7B, when the shutter opening / closing operation unit 25 is rotated, the shutter 24 is also rotated and charged. The terminal opening 23 is opened. The shutter opening / closing operation unit 25 and the shutter 24 are configured to be biased by a spring (not shown) in a direction in which the shutter 24 shields the charging terminal opening 23.

Then, a structure and operation | movement are demonstrated about the cleaner body 1 and the charging stand 21 using FIGS.

  FIG. 9 is a side view showing a charging stand mounting state of the cleaner main body in the present embodiment, FIG. 10 is a side view seen from the upper surface side of the cleaner main body showing the charging stand mounting state of the cleaner main body, FIG. 11 is a longitudinal sectional view taken on line DD in FIG. 10 showing the charging stand mounting state of the cleaner body, and FIG. 12 is an EE longitudinal sectional view showing the charging stand placement state of the cleaner body in FIG. FIG. 13 is a cross-sectional view of the main part showing a state immediately before the main body terminal of the vacuum cleaner body and the charging terminal of the charging stand are connected, and FIG. 14 is a main part showing the connection state of the main body terminal of the cleaner main body and the charging terminal of the charging stand. FIG.

  9 and 10, the mounting portion 21a of the charging base 21 is housed and placed so that the rear surface of the cleaner body 1 is grounded. At this time, as the cleaner body 1 approaches the mounting portion 21a, the shutter opening / closing operation contact portion 9 provided on the rear lower surface of the cleaner body 1 is moved to the shutter opening / closing operation portion 25 as shown by an arrow in FIG. Is gradually rotated about the shaft 26. As shown in FIG. 12, the shutter 24 configured coaxially with the shutter opening / closing operation unit 25 is also rotated to open the charging terminal opening 23, and the main body terminal storage unit 8 having a substantially rectangular tube shape is the charging terminal storage unit. 22 is inserted into the charging terminal opening 23.

  The main body terminal storage portion 8 and the shutter opening / closing operation contact portion 9 are in a state where the shutter opening / closing operation contact portion 9 operates the shutter opening / closing operation portion 25 to rotate the shutter 24 to open the charging terminal opening 23. The main body terminal storage portion 8 is set to have a length and shape to be inserted into the charging terminal opening 23.

  FIG. 13 is an enlarged cross-sectional view of the main body terminal storage portion 8 and the charging terminal storage portion 22 immediately before the connection between the main body terminal 10 of the vacuum cleaner main body 1 and the charging terminal 27 of the charging stand 21, and FIG. 3 is an enlarged cross-sectional view of the main body terminal storage portion 8 and the charging terminal storage portion 22 in a connected state of the main body terminal 10 and the charging terminal 27 of the charging stand 21. FIG.

  As shown in FIGS. 13 and 14, the charging terminal 27 of the charging stand 21 is disposed at a substantially central position of the charging terminal housing portion 22, is made of a copper alloy, and has a distal end formed in a substantially flat plate shape.

  The main body terminal storage portion 8 is formed to be slightly narrower than the charging terminal storage portion 22, and the opening portion 8 a of the main body terminal storage portion 8 is biased toward the charging terminal storage portion 22. Even when inserted, the charging terminal 27 is formed in such a size that it can be inserted. The main body terminal 10 is made of a copper alloy, is formed in a clip shape having a pair of terminal portions, and is formed in a shape that gradually expands below the contact portion with the charging terminal 27 whose terminal portion interval is narrowed.

  FIG. 13 shows a state in which the shutter 24 is opened to open the charging terminal opening 23, and the substantially rectangular tube-shaped main body terminal storage portion 8 starts to be inserted into the charging terminal storage portion 22.

  On the side of the opening 8a of the main body terminal accommodating portion 8, a pair of shutters B32 that can move horizontally with a minute gap between the opening 8a and the side wall surface of the inner surface of the opening 8a are disposed. The front end 31a of the shutter 31 abuts the opposing front end of the shutter B32 so as to close the opening 8a. As the opening mechanism for opening the shutter B32, an inclined portion 32a that inclines from the outside toward the inside is formed at the opposite tip portions of the shutter B32, and the tip of the charging terminal 27 is formed on the inclined portion 32a. When contact is made, as shown in FIG. 14, the shutter B32 is moved in the horizontal direction along the inclined portion 32a, and the charging terminal 27 reaches the position of the main body terminal 10 to be connected. When the charging terminal 27 is inserted, the shutter B 32 is prevented from moving inward of the main body terminal housing portion 8 by the shutter press 30.

  The main body terminal 10 is formed in a clip shape having a pair of terminal portions, and is formed in a shape that gradually expands below the contact portion with a narrowed interval between the terminal portions, so that it can be reliably electrically connected to the charging terminal 27, Contact failure can be reduced. Moreover, since the main body terminal 10 has a pair of terminal portions, it can be electrically connected to the charging terminal 27 at two locations, and contact failure can be further reduced. Furthermore, since the main body terminal 10 has a pair of terminal portions, even when the main body terminal storage portion 8 is inserted to be biased to one side of the charging terminal storage portion 22, the charging terminal 27 is one of the main body terminals 10. It is possible to charge the secondary battery electrically.

  As described above, the charging terminal 27 is inserted from the opening 8a of the main body terminal storage portion 8, and the charging terminal 27 of the charging base 21 and the main body terminal 10 are connected.

  When the vacuum cleaner main body 1 is removed from the mounting portion 21a of the charging stand 21, the shutter opening / closing operation portion 25 and the shutter 24 are coaxially spring-biased in a direction to shield the charging terminal opening 23 by a spring (not shown). Since it comprises, the charging terminal opening part 23 can be shielded automatically. These operations described with reference to FIGS. 11 to 14 are performed simultaneously.

  As a result, even if the bottom surface side of the vacuum cleaner main body 1 comes into contact with the floor surface during cleaning use, it is possible to prevent dust from adhering to the main body terminal 10, so that no electrical contact failure occurs, and In addition to ensuring electrical safety, for example, by setting the voltage of the secondary battery high, it is possible to improve the suction force and extend the cleaning use time. Furthermore, the power supply voltage and current settings for the secondary battery can be increased to shorten the time until the secondary battery is fully charged. Furthermore, it is possible to prevent the shutter from being opened even when an external force is applied to the shutter due to a falling object in the house, and to prevent an operation to open the shutter artificially. It is possible and can ensure safety.

  In addition, in the said embodiment, although the main body terminal accommodating part 8 was arrange | positioned in the back lower part of the cleaner body 1, you may arrange | position in the bottom face of the cleaner body 1. FIG.

  Further, even if the configuration of the main body terminal storage portion 8 including the shutter B32 and the like is adopted in the charging stand 21 and the configuration of the charging terminal storage portion 22 including the shutter 24 and the like is adopted in the cleaner body 1, the same operation as described above, An effect can be realized.

  As described above, the rechargeable vacuum cleaner according to the present invention can prevent poor contact of the charging terminal portion and can ensure safety around the charging terminal, so that the household or commercial vacuum cleaner can be used. Applicable to machine etc.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 4 Dust collector 8 Main body terminal accommodating part 8a Opening part 9 Shutter opening / closing operation contact part 10 Main body terminal 11 Electric blower 21 Charging stand 22 Charging terminal accommodating part 23 Charging terminal opening part 24 Shutter 25 Shutter opening / closing operation part 27 Charging terminal 30 Shutter holder 31 Leaf spring 32 Shutter B

Claims (3)

An electric blower that emits suction air and a secondary battery that supplies electric power to the electric blower, and has a main body terminal connected to the secondary battery, and a mounting portion on which the vacuum cleaner main body is placed And a charging stand having a charging terminal connected to the main body terminal in a state where the main body of the vacuum cleaner is mounted on the mounting portion, and forming a main body terminal storage portion for storing the main body terminal in the main body of the vacuum cleaner. An opening for inserting the charging terminal into the main body terminal storage portion, and a shutter for closing the opening so as to be freely opened and closed, and the shutter when the vacuum cleaner main body is mounted on the charging stand. An electric vacuum cleaner provided with an opening mechanism for opening. The vacuum cleaner according to claim 1, wherein an inclined surface that is opened by contact with the charging terminal is formed on the shutter. The vacuum cleaner according to claim 1, wherein the main body terminal storage portion is configured not to protrude in an outer peripheral direction from a bottom surface or a bottom rear surface of the vacuum cleaner main body.

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