JPS63252121A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Objective of the Invention) (Industrial Field of Application) The present invention provides a secondary battery that is a power source for an electric blower and a charging circuit for charging the secondary battery built into the main body of the electric blower. The present invention relates to a vacuum cleaner, and particularly relates to a connection structure between a charging circuit and an external power source such as a commercial AC power source.

(Prior art) Conventionally, in this type of vacuum cleaner, the power supply circuit consisting of the entire charging circuit or a transformer, etc. To charge the secondary battery, connect the power plug of the charging adapter to a commercial AC power outlet, and connect the plug of the cord extending from the charging adapter to the jack on the vacuum cleaner itself. I was trying to connect to.

However, with the above conventional structure, when charging, it is necessary to bring the included charging adapter from the storage location and connect the plug of this charging adapter to the jack on the vacuum cleaner itself, which is time-consuming. . Also, it's easy to lose the charging adapter that comes with it. Furthermore, if you mistakenly use a charging adapter for another model, there is a risk of damaging the remover body or causing an excessive current to flow and causing a fire.

(Problems to be Solved by the Invention) As described above, in conventional vacuum cleaners, the charging adapter was separate from the vacuum cleaner body, which caused problems such as the time-consuming task of charging.

The present invention aims to solve such problems, and aims to provide a vacuum cleaner that does not require much effort to charge.

[Structure of the invention]

(Means for Solving the Problems) The vacuum cleaner of the present invention includes an electric blower in the vacuum cleaner body,
It has a built-in secondary battery that is the power source of this ffl dynamic air blower and a charging circuit that includes a power supply circuit that charges this secondary battery, and a cord for connecting to an external power source is connected to the power supply circuit of the charging circuit. Further, a cord storage chamber for storing the cord is formed at the bottom of the vacuum cleaner body, and a cord outlet for guiding the cord to the outside is formed at the bottom and rear side of the cord storage chamber. It is.

(Function) In the vacuum cleaner of the present invention, during cleaning, etc., the cord for connecting the charging circuit to the external power source is stored in the cord storage chamber at the bottom of the vacuum cleaner body. And 2 inside the vacuum cleaner body.
Next, when charging the battery, place the vacuum cleaner body on the bottom surface to prevent the cord from getting caught between the vacuum cleaner body and the floor, or in other words, to prevent the stability of the vacuum cleaner body from being When the vacuum cleaner is placed face down, the cord is inserted through the cord outlet on the rear side of the cord storage chamber.When the vacuum cleaner is placed on its rear side, the cord is inserted through the cord outlet at the bottom of the cord storage chamber. Lead out the cord from the storage room and connect it to an external power source such as a commercial AC power source.

Then, power is supplied from this external power supply via the cord to a charging circuit including a power supply circuit within the main body of the shaker, and a charging current is supplied from this charging circuit to the secondary battery.
This secondary battery is charged.

(Embodiment) Hereinafter, the configuration of an embodiment of the electric hM remover of the present invention will be explained based on FIGS. 1 to 3.

1 is the main body of the vacuum cleaner, main body case 2, and this main case 2
It consists of a dust collection case 3 attached to a removable opening on the front side of the dust collection case. The main body case 2 is divided into left and right parts, and consists of a pair of left and right main case members 4.5 that are joined together with screws or the like.

The dust collection case 3 has a collection chamber 6 inside thereof. Further, a cylindrical suction lower is formed at the front bottom of the dust collection case 3 facing the dust collection v6. Further, the rear surface of the dust collection case 3 is opened, and a filter 8 is detachably attached to the toilet collection chamber 6 through this rear surface opening. Further, at the rear end of the dust collecting case 3, a clamp 10 biased by a spring 9 is pivotally attached to the upper part thereof, and a locking protrusion 11 is integrally provided vertically at the lower part.

On the other hand, at the front end of the main body case 2, an engagement groove 12 is formed in the upper part, and an engagement receiving part 13 is formed in the lower part.
are formed, and the clamp 10 of the dust collection case 3 and the engagement piece 1 protrusion 11 are removably engaged with the engagement groove 12 and the engagement receiving portion 13, so that both the engagement grooves 12 and the engagement receiving portions 13 Cases 2 and 3 are detachably connected.

Further, a handle 14 is integrally formed at the center of the upper part of the main body case 2, and is inclined toward the front. In addition, a communication port 1 is provided on the front side of the main body case 2.
5 is formed with a frontage. Furthermore, the main body goo 120
An exhaust hole 16 is formed at the rear of the surface fIA, and the inner end of the exhaust hole 16 is covered with an exhaust filter 11.

Reference numeral 21 denotes a rectifying plate made of synthetic resin or the like, and is formed into a plate shape whose outer circumferential shape is approximately equal to the inner circumferential shape of the front end portion of the main body case 2 . A plurality of flow ports 22 are formed at the peripheral edge of the current plate 21. Further, on the rear surface of the rectifying plate 21, a plurality of rectifying ribs 23 forming a half-curved shape having the communication port 22 at one end are formed protrudingly. A cylindrical holding portion 24 is formed in a protruding manner. Further, on both sides of the lower part of the current plate 21, retaining ribs 25 each having a front circular arc shape and an elastically deformable projecting piece are formed to protrude rearward.

The cylindrical holding portion 24 of the current plate 21 has a cylindrical shape. T! There are 8 machines each with 28 machines. A fan 30 is mounted on a rotary shaft 29 of the electric motor 28 that projects forward of the rectifying plate 21, and is connected to the W! ! It is fixed to the flow plate 21 in a state where it is covered except for the front side. Then, the electric motor 2
8 and the fan 30 constitute an electric blower 31.

Furthermore, a secondary battery 33 such as a cylindrical lead-acid battery is fitted and held in both holding ribs 25 of the current plate 21, respectively.

Further, a charging circuit board 34 is supported and fixed at the rearmost part inside the main body case 2, and this charging circuit board vj134
A transformer 35 forming a charging circuit for charging the secondary battery 33 and a switching element such as a transistor are mounted on the battery. Furthermore, the main body case 2
A circuit board 36 is supported at the front upper part of the interior, and a switch 37 for controlling the electric blower 31 and the like are mounted on this circuit board 36.

Reference numeral 41 denotes a power cord, which has one end connected to the charging circuit board 34 and a plug 42 connected to the other end, and extends through the center of the bottom rear end of the main body case 2. It is led out to the outside of the main body case 2. Further, the power cord 41 is formed in a spiral shape, and the diameter of the spiral is smaller than the height of the plug 42.

Further, both main body case parts 04 constituting the main body case 2
．． 5 bottom surface %: is a rib extending in the front-rear direction 43.44
are formed to protrude downward, respectively, and the lower portions of these parallel ribs 43, 44 are bent at right angles in the joining direction of both main body case members 4.5. The height between the two lips 43 and 44 is approximately equal to the diameter of the spiral of the power cord 41, and the cord storage i! is where the cord 41 is stored. 45 is formed. Also, the above-mentioned Rip 43.4
A container body 41 for opening and closing an opening aIS46 between the opposing ends 1i of the two lips 43, 44 is rotatably supported at one end thereof via a hinge portion 48 at the front end portions of both lips 43,44. Also, a position W4 is placed on the same plane as the rear surface of the main body case 2.
The opening 46 is provided on the rear surface of the cord storage chamber 45.
A rear cord outlet 49 is formed which has a smaller width and is connected to this opening 46. On the other hand, the cord storage chamber 4
A cutout-shaped lower cord outlet 50 is also formed at the rear end of the lid 41 that covers the opening 46 on the bottom surface of the lower cord outlet 5. The lower cord outlet 50 has the same width as the rear cord outlet 49 and is connected to the rear cord outlet 49. ing.

Furthermore, the code storage chamber 45 and both secondary batteries 33 will be punished! A plug accommodating portion 51 is formed in the center of the bottom of the main body case 2 and serves as a presser portion that protrudes inward from the main body case 2 . And this plug storage part 5
On the bottom side of 1, front &! The upper part of the plug 42 of the power cord 41 is fitted. Further, both the secondary batteries 33 are held between both sides of the plug storage part 51 that protrudes between the two secondary batteries 33 and both sides of the inner surface of the main body case 2, and these secondary batteries 33 are fixed. There is.

Next, the configuration of the electric circuit will be explained with reference to FIG.

The electric blower 31 and the secondary battery 33 which is the power source of the electric blower 8a 31 are connected in series between the contact 37a of the switch 37 and the switch 37b to form a discharge path. There is. Also, before &! A discharge display circuit consisting of a series circuit of a resistor 61, diodes 62, 63, and a light emitting diode 64 is connected in parallel with the electric blower 1131.

Next, the configuration of the charging circuit 66 that charges the secondary battery 33 will be explained. This charging circuit 66 includes a power supply circuit 67 and a charging control circuit 68, and is configured with a switching regulator so that the above-mentioned lance 3
5, it is possible to incorporate the power supply circuit 67 into the cleaning body 1 of the handy type.

First, the power supply circuit 67 will be explained.

The cord 41 connected to the commercial AC power source is made of a diode bridge! It is connected to both input ends of the rectifier circuit 70, and between both output ends of the rectifier circuit 70, a capacitor 72 for flat A1 is connected via a jog coil 11 on the side. Further, a protective capacitor 73 is connected between input terminals of the rectifier circuit 70.

An oscillation circuit 15 forming a switching regulator is connected to the output end of the rectifying and smoothing circuit 74 configured in this way. That is, the first primary winding 35 of the transformer 35 is connected to the -F side output terminal of the rectifying and smoothing circuit 74.
The - end of a is connected, and the (
l! ! One end of the first primary winding 35a is connected to the collector of the first transistor 76, and a series circuit of a resistor 77 and a capacitor 78 is connected between one end and the other end of the first primary winding 35a. Further, the + of the rectifying and smoothing circuit 74 is
The side output terminal is connected to the base of the first 1-range staff 6, the collector of the second transistor 80, and one end of the second primary winding 35b of the transformer 35 via a resistor 79, respectively. There is. Furthermore, the rectifying and smoothing circuit 7
One side output terminal of 4 is connected to a switch 37b of the switch 31 to which the + side of the secondary battery 33 is connected, and a contact 37c of the switch 37 to which this switch 37b is connected.
A connection point between the emitter of the first transistor 76 and the base of the second transistor 80 is connected via a resistor 81, and the emitter of the second transistor 80 is connected, and the second primary winding The other end of the line 35b is connected through a parallel circuit of a resistor 82 and a capacitor 83.

Further, both ends of the secondary winding 35c of the transformer 35 are connected to the + side of the secondary battery 33 via rectifying diodes 84 and 85, respectively, and one side of the secondary battery 33 is connected to the positive side of the secondary battery 33. is connected to the midpoint of the secondary winding 35C. Furthermore, this second volume I! A charging display circuit consisting of a series circuit of a resistor 86, a diode 81, and the light emitting diode 64 is connected between one end and the midpoint of 35c.

Next, the charging control circuit 68 will be explained.

Resistor 79 and first transistor 76 of the oscillation circuit 15
The connection point with the base of the transistor 9 is connected via a resistor 89 to the base of the transistor 9.
0, and this transistor 90
An emitter of is connected to one side of the secondary battery 33. Further, resistors 91 and 92, a constant voltage diode 93, and a resistor 94 are connected in series between the + side output terminal of the rectifying and smoothing circuit 74 and one side of the secondary battery 33. A connection point between the resistors 91 and 92 and one side of the secondary battery 33 are connected to a reference voltage of a comparator 95.

Further, the + side input terminal of this comparator 95 is connected to the + side of the secondary battery 33 via a diode 96, and the - side input terminal is connected to the connection point between the resistor 92 and the voltage regulator diode 93. ing. Further, the output terminal of the comparator 95 is connected to the base of the transistor 90 via a resistor 97, and connected to the connection point of the resistors 91 and 92 via a resistor 98.
It is connected to one side of the secondary battery 33 via a capacitor 99.

Next, the operation of the above embodiment will be explained.

When cleaning, hold the handle 14 and move the suction lower to face the surface to be cleaned. In addition, the electric blower 31 is turned on and off by operating a switch 31 located at the front of the handle 14. An airflow is generated by the fan 30 rotated by the electric motor 28 powered by the battery 33, and this airflow sucks in dust from the suction lower. The sucked dust is stored in the collection chamber 6 by the filter 8, while
The airflow that has passed through the filter 8 is passed through the communication port 15 and the rectifier plate 2.
1 through the flow port 22 and rectifying rib 23 of the exhaust hole 1
It is discharged from 6.

By the way, when the electric blower 31 is driven, the secondary battery 33
When the voltage is sufficiently high, the light emitting diode 64 lights up, but when the capacity 1 of the secondary battery 33 decreases and the voltage of this battery 33 becomes low, the light emitting diode 64 turns off and the user It is notified that the battery 33 needs to be charged.

To charge the secondary battery, simply open the lid 41, take out the power cord 41 from the cord storage chamber 45, and insert the plug 42 of the power cord 41 into the power outlet of the commercial VL power source. After taking out the cord 41, the lid 41 will not be in the way. - through cord outlet 50
1 to the outside. When placing the vacuum cleaner main body 1 with its bottom facing down, use the rear cord outlet 49 to
In addition, when the vacuum cleaner body 1 is placed with its rear side down, the cord 41 can be led out through the lower cord outlet 50.
A cord 41 is connected between the vacuum cleaner body 1 and the surface on which it is placed, such as the floor.
The vacuum cleaner body 1 can be placed in a stable state without being pinched. That is, even if the vacuum cleaner main body 1 is placed with either the bottom or the rear side down, the battery 41 can be pulled out and charged without compromising stability.
It's convenient. Further, since both cord outlets 49 and 50 are connected, it is possible to easily change the state in which the vacuum cleaner main body 1 is placed with its bottom side down, for example, to the state where its bottom side is placed down.

Here, the operation of charging circuit 66 will be explained.

When the voltage of the secondary battery 33 is lower than the voltage set by the voltage regulator diode 93, the comparator 95
The output of is at a low level and transistor 90 is turned off. This situation! l]0 is V flow smoothing circuit 7
In the oscillation circuit 75 supplied with DC from 4, both transistors 76 and 80 are turned on and off alternately,
Both secondary windings 35a, 35b are turned on and off alternately. That is, both secondary windings 35a.

The current flowing through 35b alternately increases and decreases. In particular, when the current in the secondary windings 1135a and 35b decreases, the current induced in the secondary winding 35C flows through the diodes 84 and 85 to the secondary battery 33, and this secondary battery 33 is charged. Ru. At this time, the light emitting diode 64 lights up to notify the user that charging is in progress.

Then, when the secondary battery 33 is charged and the voltage of this battery 33 becomes higher than the voltage set by the voltage regulator diode 93, the output of the comparator 95 becomes a high level, and the base current flows to the transistor 90. turns on. Then, this transistor 9
Since the current flowing through the oscillation circuit 15 through the secondary winding 35c is bypassed, the current induced in the secondary winding 35c is reduced, and overcharging of the secondary battery 33 is prevented. Along with this,
The light emitting diode 64 turns off to notify the user that charging is complete.

Note that opening of the charging circuit 66 and opening of the discharging circuit including the electric blower 31 are selectively switched by the switch 31, and the charging circuit 66 and the discharging circuit are not closed at the same time, so it is safe. be.

As mentioned above, the power supply circuit 61 consisting of the transformer 35 etc.
Since the charging circuit 66 including the charging circuit 66 is built into the vacuum cleaner body 1, when charging, there is no need to bring a charging adapter which is an accessory separate from the vacuum cleaner body. 41 can be easily charged by simply connecting it to a commercial AC power source. In addition, since a charging adapter is not required, there is no chance of losing the charging adapter and becoming unable to charge the device, and also prevents accidents such as disconnection of this adapter due to incorrect use of a charging adapter for another model. Can be done.

After charging, the lid 47 is opened, the cord 41 is stored in the cord storage chamber 45, and the lid 41 is closed. If the cord 41 is stored in this way, the cord 41 will not get in the way when removing the 11 or when storing the vacuum cleaner main body 1.

In addition, when storing the cord 41, the plug 4 of this 1-cord 41
2 is stored in the plug storage section 51.

By the way, the plug storage part 51 that stores the plug 42 whose height is larger than the spiral diameter of the cord 41 is located in the vacuum cleaner main body 1.
Since it is formed to protrude toward the space created between the secondary batteries 33 of the 2111il inside, one volume of the main body of the LLI remover can be used effectively, and the height of the main body 1 of the vacuum cleaner can be kept low. In addition, the plug storage section 51 is provided with a secondary battery 3.
Since it also serves as the presser part of No. 3, it has an efficient configuration.

Furthermore, the cord storage chamber 45 is inserted from the bottom of the case member 4.
Ribs 43 and 44 extending parallel to the joining direction of No. 5
When storing the power cord 41 formed in between, wrap the cord 41 and push it between the glues 743 and 44 on both sides and the bottom of the vacuum cleaner body 1, as shown in FIG. - The door 41 can be held securely and stored easily, and the case member 4.5 can also be easily molded.

〔Effect of the invention〕

According to the present invention, a charging circuit including a power supply circuit is built into the main body of the baking machine, and a cord for connecting to an external power source is connected to this charging circuit, so that this cord can be connected to an external power source such as a commercial AC power source. You can easily charge the C1 by simply connecting it to the vacuum cleaner.In addition, cord outlets are formed at the bottom and rear side of the cord storage chamber at the bottom of the vacuum cleaner body, so you can easily charge the C1 with the bottom of the vacuum cleaner body facing down. Whether you place it with the back side facing down, the cord can be guided out without getting caught between the vacuum cleaner body and the floor, etc., and the vacuum cleaner body can be placed with good stability. It is convenient because there are fewer restrictions on the posture of the vacuum cleaner body during charging.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view showing an example of a vacuum cleaner of the present invention, Fig. 2 is a lower perspective view of the main body case of the same, and Fig. 3 is a drawing of the section -m in Fig. 1 of the above. The figure is a circuit diagram of the same as above. 1. Vacuum cleaner body, 4.5. Main body case member, 31.
・Electric blower, 33... Secondary battery, 41...]-de, 4
No. 2: Plug, 43.44: Rib, 45: Cord storage chamber, 49.50: Cord exit, 51: Plug storage section.礪LLu

Claims (3)

[Claims] (1) An electric blower, a secondary battery that is the power source for the electric blower, a charging circuit including a power supply circuit that charges the secondary battery, and a vacuum cleaner body that contains the electric blower, secondary battery, and charging circuit. A cord for connection to an external power source is connected to the power supply circuit of the charging circuit, a cord storage chamber for storing the cord is formed at the bottom of the vacuum cleaner body, and a bottom and rear surface of the cord storage chamber are formed. A vacuum cleaner characterized in that a cord outlet for guiding the cord to the outside is formed on each side. (2) Two of the secondary batteries are disposed along the bottom of the vacuum cleaner body, and the vacuum cleaner body is provided with these secondary batteries at the bottom between the two secondary batteries on other parts of the inner surface of the vacuum cleaner body. The present invention is characterized in that it has a presser part that protrudes inwardly and is held by the cord, and the presser part is positioned facing the cord storage chamber to serve as a plug storage part in which a plug connected to the cord is stored. An electric cotton removing machine according to claim 1. (3) The vacuum cleaner main body consists of a pair of left and right main body case members joined to each other, and the cord storage chambers extend parallel to each other from the bottoms of the two main body case members toward the direction in which these two main body case members are joined. The vacuum cleaner according to claim 1, characterized in that the vacuum cleaner is formed between the ribs.