JP2001321310A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the suction performance for the cleaning of a carpet in a battery-drive mode, improve the easy-to-usability by adjusting of the center of gravity with the battery capacity of ensuring the service time, and improve the safety, the reliability and the durability on operation using AC and DC. SOLUTION: In order to improve the suction performance of a suction port, a battery B is provided on the suction port separately from a battery A provided on a body to drive a rotary brush by a motor. Both supports of a handle provided on an upper surface of the body are located above an electric blower so that the positions of the center of gravity of an accommodation chamber of the electric blower and the battery are between both supports of the handle when viewed from the upper part of the body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor moving type vacuum cleaner having a rechargeable battery with improved usability.

[0002]

2. Description of the Related Art Conventional floor-moving vacuum cleaners are:
Due to the necessity of the suction force, power consumption is relatively large for home electric appliances, and models of about 500 to 1000 W are generally used. As a prior art equipped with a secondary battery for charging, Japanese Patent Application Laid-Open No. 7-39483 describes the structure of a vacuum cleaner main body and a charging stand provided with a secondary battery. Was not described.

[0003]

The object to be cleaned by a vacuum cleaner is not only flooring and folding, but also floor cleaning such as carpets and carpets is inevitably required. The cleaning effect is improved by using a rotating brush driven by airflow. However, when the battery is used as the power source for the electric blower for suction,
The power of the electric blower cannot be increased from the battery mass and its capacity in consideration of the usability of the main body. For example, in order to rotate a rotating brush with the above-mentioned suction airflow, it is generally 1.0 m ^3.
As described in the conventional example, when a battery of about 1.5 kg is used with the most common NiCd battery and the use time is set at about 30 minutes, the above-mentioned air flow cannot be obtained and the rotation is not possible. I can't use a brush.

[0004] Further, when an electric motor is used, there is a problem that the electric power or the operating time of the electric blower is further reduced for supplying electric power to the electric motor.

[0005] In order to use the battery for suction of a vacuum cleaner, the battery needs to connect a plurality of cells, increase the voltage, and apply the voltage to the electric blower. The voltage of each cell is slightly different depending on the type of battery due to the compact main body configuration and the balance of the center of gravity considering the usability, and the flow configuration of the exhaust air from the electric blower and the cooling air from the battery, but multiple cell configurations need to be considered. There is.

As described above, since the battery for driving the electric blower for suction occupies a large specific gravity in terms of mass in the main body structure, the position of the center of gravity of the handle carrying the main body due to the layout of the electric blower and other parts is large. It greatly affects usability. In the above-mentioned conventional example, there is a description about the position of the wheel and the center of gravity in order to improve the storage, but the handle position is only the embodiment provided on the front side of the main body, and the description about the main body upper handle which is generally convenient for carrying the main body is omitted. Did not.

As described above, in the case of a floor moving type vacuum cleaner, the power consumption is large due to the magnitude of the suction force. However, the cooling of the electric blower often uses a suction air flow, and furthermore, the air blower uses air compression for suction. The temperature rise causes the exhaust temperature to rise. Due to the improvement in usability, a compact body configuration makes the electric blower and the battery inevitably come close to each other, and if the battery is placed in the exhaust passage, the temperature of the battery itself will increase, which will increase the battery temperature and reduce reliability. There is also the problem of causing

In the conventional example, only the battery is described as the driving power source. However, when the capacity of the rechargeable battery is reduced, when it is desired to use the battery for a longer time than usual as in general cleaning, or when a strong suction force is required. In such a case, it would be very convenient if it could also be used as a household AC power supply. In this case, if both the battery and the power cord are provided in the main body, the usability can be improved. However, in actuality, as described above, the weight may be heavy and the use may be difficult. Therefore, when a battery or a power supply cord is detachably used so that it can be used, a method for reliably switching between AC and DC power supplies, a safety method, and the like are required in the drive circuit configuration of the electric blower.

[0009] Further, in the case of the AC / DC dual use, a commutator motor generally used for a vacuum cleaner is originally used for driving an AC power supply, but rotates even when a DC voltage is applied. Not required. However, as a commutation condition, which is a factor of abrasion of the carbon brush, which is the durability of the commutator motor, the DC condition tends to be worse than the AC condition, and the durability of the electric blower, that is, the durability as a vacuum cleaner, There is a risk that the reliability will decrease. Therefore, in the case of DC drive, it is necessary to improve the commutation condition of the commutator motor of the electric blower.

An object of the present invention is to provide a vacuum cleaner which solves the above-mentioned problems of the conventional example and which improves the usability by using a secondary battery for charging.

[0011]

In order to achieve the above object, the present invention is characterized in that a battery A is housed in a cleaner body, and a suction brush is provided with a rotating brush driven by an electric motor. A battery B was provided in the mouth as a power source for the motor.

In order to improve usability when carrying or handling the main body, the dust collecting chamber, the storage room for the electric blower and the battery are stored in this order from the hose connection side, and the center of the axis of the floor moving wheel provided on the main body is arranged. It is provided so as to overlap the electric blower and the battery storage portion in the front-rear direction of the main body, and furthermore, the center of gravity of the electric blower and the battery when viewed from above the main body is between both side support portions of the handle provided on the upper surface of the main body. It was configured as follows. Further, both side support portions of the handle are located above the electric blower in the front-rear direction of the main body.

[0013] The battery was housed in a housing that shielded the exhaust flow of the electric blower. Here, the battery housing section is provided with a fan so as to flow air into the housing section through an opening communicating with the atmosphere and the opening, and the air flow in the housing section flows through the flow path in the housing section so as to flow along the longitudinal direction of the battery. Formed. Thereby, the temperature rise of the battery was reduced, and the reliability was improved.

A power supply cord and a power supply connection part electrically connected to a terminal provided at the other end of the plug of the power supply cord are provided on the main body so that the power supply can be connected to a home AC power supply to operate.
When the terminal is connected to the power supply connection part, the electric blower side and the battery are electrically disconnected, and when the terminal comes off from the power supply connection part, the battery and the electric blower side are connected. In addition, a concave portion is provided on the surface of the main body, a power supply connection portion is arranged inside, and a lid is formed to open and close the opening of the concave portion, and when the lid is opened, the electric blower side and the battery are electrically disconnected. The battery is connected to the electric blower so that the battery is connected to the electric blower when the cover is closed.
As a result, safe and reliable AC / DC switching is achieved.

Further, the battery and the power supply cord are stored in storage boxes having the same external dimensions, respectively, and are configured to be detachable as a unit, thereby improving the usability.

The battery is provided in the main body in the form of at least one package with at least one cell having 15 to 25 cells, so that the voltage applied to the electric blower is 20 to 30 V to ensure the safety and the carpet. With a power consumption of about 100 to 200 W, which is the minimum required for cleaning, the battery can be used for about 30 minutes, which is required for normal use of the vacuum cleaner.

In order to improve the durability of the commutator motor at the time of DC power supply, the power consumption when using a battery as a power source is 30% or less of the maximum power consumption of the electric blower at the time of use of AC power supply. And

If the power consumption is set at about 300 W in consideration of carpet cleaning even when using a battery, the maximum power consumption when using an AC power supply is about 1000 W. By reducing the power consumption at the time of DC, electrical, mechanical and thermal rectification conditions can be relaxed, and the durability as a vacuum cleaner can be improved without increasing the wear of the carbon brush when using AC.

According to the present invention described above, in a vacuum cleaner using a secondary battery, the suction performance corresponding to the cleaning of carpets, the balance of the center of gravity of the battery with improved ease of use such as carrying, and the safety of AC / DC dual use, A vacuum cleaner with improved reliability and durability can be realized.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention. FIG. 1 shows an external perspective view of the vacuum cleaner in a stand-type stored state. Flexible hose 2 connected to vacuum cleaner body 1
Suction port 6 at the end of extension tube 5 attached to support portion 4 of front handle 3 provided at the connection portion between hose and body 1 of hose 2
At the same time, it is placed on the charging stand 7 and stored as shown. FIG. 2 shows an assembled state of the main body 1 and the charging stand 7. A terminal protrusion 8 is provided on the upper surface of the charging stand 7 which is in contact with the rear surface of the main body 1, and is electrically connected to a terminal concave portion provided on the rear part of the main body 1. That is, the charging stand 7 is also connected to a power supply from the provided cord and also serves as a charger for charging the secondary battery 9A inside the main body 1. In FIG. 2, two terminal protrusions 8 are provided.
Is provided with a secondary battery 9B as a driving power source for these devices, and these two types of batteries can be charged simultaneously.

In the embodiment, the battery 9A is used as the suction of the main body 1.
In addition, a household AC power supply can be used, and the power consumption of the electric blower 12 for suction is reduced by the AC power supply 10.
In the case of 0 V, the maximum was set to 1000 W, and the output voltage of the battery 9A was set to about 100 W at 24 V. Instead of the conventional battery 9A, a cord reel 95 in which a power cord 97 is wound and housed is incorporated. However, the battery has the same mass as the cord reel 95 corresponding to 1 kW of power consumption during AC, and a battery of about 1 kg.
The maximum power consumption corresponding to about 30 minutes as a single use time required for floor moving type vacuum cleaners for general home use was set. The type of battery 9A used was NiCd
Although there is a battery, there is also a battery with a large capacity such as a nickel-metal hydride battery or a lithium ion battery. If these batteries are used, further reduction in size, weight and output can be achieved. In the present embodiment, a NiCd battery is employed for ease of handling such as charge control. The voltage per cell of the NiCd battery is about 1.2 V, and 20 cells are connected in series. Since each cell is composed of four cells and one row, it is easy to balance the arrangement of the masses, and the electric parts corresponding to 24 V are versatile, many standard products, and have a cost reduction effect.

Although the commutator motor of the electric blower 12 is compatible with an AC power supply, it can be used for both AC and DC applications, so there is no need for an AC / DC switching circuit or the like, and there is an advantage that the circuit can be easily configured. However, as a commutation condition, which is a cause of wear of the carbon brush which becomes the durability of the commutator motor, the DC condition tends to be worse than the AC condition, and the durability of the electric blower 12, that is, the durability as a vacuum cleaner, tends to be worse. , There is a risk of lowering the reliability. Therefore, in the case of DC drive,
It is necessary to improve the commutation conditions of the commutator motor of the electric blower 12. In this embodiment, 100 V, 1000 W at the time of AC
On the other hand, by setting to 24 V at DC and about 100 W, the durability of the electric blower 12 is reduced even at DC by improving the rectification conditions such as the reduction of the peripheral speed of the carbon brush, the reduction of the current density, and the reduction of the temperature rise by reducing the number of revolutions. It is possible to provide a highly reliable vacuum cleaner without causing it to run.

In the embodiment, since the mass of the battery 9A is about 1 kg, the arrangement position of the battery 9A is very important for the balance of the center of gravity. 3 and FIG. 4, the battery 9A is disposed at the rearmost portion of the main body 1, and the electric blower 12 is disposed in front of the battery 9A, and the dust collector 13 is disposed in front of the electric blower 12. According to this arrangement, it is easy to balance the left and right centers of gravity of the main body 1 when the respective centers of gravity are positioned substantially at the centers between the both side support portions 14B of the handle 14 when viewed from above the main body 1. Therefore, the convenience in carrying the main body 1 with the handle 14 is improved. When the electric blower 12 and the battery 9A are arranged on the left and right, it is difficult for the electric blower 12 and the battery 9A to be the same, and it is difficult to balance the weight on the left and right, and the handleability is reduced. 3 and 4, the center of gravity is located between the electric blower 12 and the battery 9A, but the handle 1 located above the electric blower 12
Since the position of the center of gravity is located rearward from the rotation shaft 14A of No. 4,
When the handle 14 is held, the main body 1 tilts slightly backward. When the main body 1 is placed on the floor with the handle 14, the main body 1 comes into contact with the rear, that is, from the wheels 15, so that the floor surface is not damaged. On the other hand, if the position of the center of gravity is located on the front side of the rotation shaft 14A, the connection portion of the hose 2 and the front portion of the main body 1 may be grounded first on the floor surface, which may cause damage. Further, since the center of the battery 9A is stored at the rear of the main body and within the projected area from the side surface of the wheel 15, for example, when the user raises the main body 1 by holding the handle 3 and enters the stand state of FIG. The rotation of the wheels 15 can be made smooth to facilitate the operation.

In FIG. 3, the battery 9A is composed of a plurality of cylindrical battery units 90 each having a plurality of cells packaged, each of which is arranged horizontally with the floor surface. In this case, even when the main body 1 falls with the handle 3 or 14, the load of the battery 9A can be received on a relatively large area on the side surface of the battery 9A, so that stress concentration can be avoided and the main body strength UP can be improved. FIG. 5 shows a perspective view of the arrangement state, and the storage room 1 for the battery 9A.
FIG. 6 shows a state where the lid 17 of the sixth embodiment is disassembled. In the battery unit 90, the cells are electrically connected in series or in parallel, and an external terminal 91 is provided. External terminal 91
Is connected to the connection terminal 92 provided on the main body 1 side and is incorporated, and the output from the battery 9A to the electric blower 12 or
The input from the charging terminal unit 20 to the battery 9A is connected. 7 and 8, the battery units 90 are arranged in a direction perpendicular to the floor surface as shown in FIG.
7 was provided. The lid 17 is fixed to the main body 1 with a fixing screw 18, but the screw 18 may be a lock mechanism rotatable with a coin or the like, so that the convenience of battery replacement is good.

When the battery 9A is arranged vertically with respect to the floor, efficient cooling of the battery 9A is facilitated. That is,
Although raising the dust and dust around the main body 1 by the exhaust is a problem for the user, when the upper exhaust method is used for solving the problem, the battery 9A cooled by the exhaust is moved in the axial direction, that is, in the longitudinal direction. Since the exhaust gas flows along, the cooling effect is enhanced.

Further, a power supply connecting portion 50 is provided on the main body 1, and one end of a power supply cord 97 is detachably attached. The other end of the power cord 97 has a power plug so that it can be connected to a household outlet. When the power cord 97 is not connected for safety, the changeover switch 100 is provided inside the main body 1 so that the connection terminal 50A of the power supply connection section 50 does not become a charging section by the battery 9A. As shown in FIG. 40, when the terminal 97B of the power cord 97 is not connected to the power connection unit 50, the changeover switch 100 is connected to the power supply terminal 101 to the electric blower 12 and the battery 9A side terminal, and when the terminal 97B is connected. The changeover switch 100 connects the power supply terminal 101 and the connection terminal 50A, and supplies power from the outlet to the electric blower 12.

A concave portion 50B is provided on the surface of the main body of the power supply connection portion 50, and the connection terminal 50A is disposed inside the concave portion 50B.
Is formed so as to open and close the opening of the cover 50C.
C is configured to be linked with the changeover switch 100.
When the lid 50C is opened, the electric blower 12 side and the battery 9A
Is electrically disconnected by the changeover switch 100 and the lid 5
The battery was connected to the electric blower when 0C was closed. As a result, safe and reliable AC / DC switching is achieved. If the cover 50C is always urged by a spring or the like in the closing direction, not only can the battery 9A be prevented from being forgotten to be closed when used, but also around the connection terminal 50A even when water or the like is accidentally applied to the main body 1. Can be prevented, and the reliability can be improved.

Next, FIG. 9 shows an embodiment in which the battery 9A is stored in a storage box 93. The storage box 93 is detachably attached to the main body 1 and is locked by a clamp 94. The above-described external terminals 91 are provided on the outer surface of the storage box 93 in a concave or convex shape, and are configured to be electrically connected to the connection terminals 92 of the main body 1 when attached to the main body 1. When charging the battery 9 </ b> A, the battery is charged from the charging terminal section 20, and can be charged in a state where the battery 9 </ b> A is incorporated in the main body 1. Of course, if the storage box 93 alone can be charged through the external terminal 91, the usability is further improved. Further, as shown in FIG.
Instead of the storage box 93, a code unit 96 in which a code reel 95 is stored can be attached. The mounting structure is the same as the storage box 93, and the power cord 97
Is supplied from the external terminal 91 to the main body 1 to drive the electric blower 12. The cord unit 96 is provided with an intake port 98 for taking in the exhaust air from the electric blower 12 to cool the internal power cord 97, and then exhaust the exhaust port 9.
Discharge from 9 to the outside. As described above, the storage box 93 of the battery 9A and the cord unit 96 are configured to be detachable by using a cassette method, so that the user can firstly save the trouble of connecting the power cord 97 to a household outlet, and quickly and easily. It can also be used in places where power is out of reach, such as in a car. However, providing the battery 9A having such a large capacity in the portable main body 1 rather reduces the usability, so that the suction force tends to decrease and the use time tends to decrease. In particular, when the user feels dissatisfied with it, for example, when using it for a long time in general cleaning, when cleaning on a carpet with long hairs, or when using the battery 9A.
When the battery is discharged, it is possible to sufficiently clean it by attaching the code unit 96, and the usability is remarkably improved.

FIGS. 10 and 11 show a storage box 93 for the battery 9A.
2 shows an external perspective view and a vertical cross-sectional view in the case where is provided in the upper rear part of the main body 1. The exhaust gas that has passed through the exhaust chamber 30 behind the electric blower 12 may be directly discharged to the outside of the main body 1 or may flow into the storage box 93 for cooling the battery 9A. Since the exhaust temperature of the electric blower 12 changes according to the output of the electric blower 12, when the output is large and the exhaust temperature becomes high, it is better to isolate the exhaust from the inside of the storage box 93 to suppress the temperature rise of the battery 9A and to increase the reliability. There is no loss of performance. Conversely, when the output is small and the exhaust temperature is lower than the temperature of the battery 9A, the reliability can be improved by actively cooling. Further, by disposing the storage box 93 above the electric blower 12, a sound insulation effect can be expected and low noise can be realized.

FIG. 12 shows the flow of exhaust gas when the battery 9A is provided in the main body 1. The output of the electric blower 12 is large, and the temperature rise due to the compression in the blower 12A
If the exhaust temperature exceeds the allowable temperature range of the battery 9A due to the exhaust temperature rise due to the coil cooling of the battery B, the battery 9A
The battery 9A is accommodated in a battery accommodating portion 35 having a partition wall 34 for isolating the battery 9A from the exhaust air, and is insulated from the exhaust air to prevent a temperature rise. In this case, in order to prevent overheating due to the temperature rise of the battery 9A itself, an opening 35A communicating with the atmosphere is provided on the outer surface of the battery housing portion 35 to dissipate heat, or if the temperature rise is high, a fan 36 is further provided. It is configured to actively cool the battery 9A. In this case, if the flow of the cooling air from the fan 36 is arranged along the longitudinal direction of the battery 9A, the ventilation resistance can be reduced and cooling can be performed efficiently. In the drawing, a hole corresponding to each air flow is provided in a cover 37 that covers the battery housing 35, a hole 37A exhausts exhaust gas from the battery housing 35, and a hole 37B is provided for the fan 36. Intake air from outside,
The hole 37C discharges the exhaust air from the electric blower 12 to the outside of the main body 1. Therefore, since each flow path is independently communicated with the atmosphere, a predetermined temperature can be obtained without mixing in the main body 1.

FIG. 13 shows an example in which a storage box 93 or a cord unit 96 for the battery 9A is provided on the rear surface of the main body 1. By setting the exhaust chamber 30 as the above-described installation location with respect to FIG. 9, a compact arrangement can be achieved and the size and weight of the main body 1 can be reduced. Attachment is stopped by the clamp 94 in the same manner as described above, and an exhaust inlet 98 for exhaust is provided facing the exhaust outlet 31 of the main body 1 to take in exhaust. FIGS. 14 and 15 are perspective views showing the appearance when the storage box 93 and the code unit 96 are attached. FIG. 16 shows a comparison between the storage box 93A storing the large-capacity battery 9A. Because of the size,
Although the user is traveling on the rear side of the main body 1, if the auxiliary roller 99 for raising the main body 1 is provided, the raising operation can be easily performed.

FIG. 17 shows a comparison between a case where the code unit 96 is attached in a longitudinal section and a large capacity storage box 93. Also, since there is room in the rear, if you set multiple capacities of the battery 9A, when purchasing or using it, a small capacity type is desired if you want a lightweight type, and a large capacity type if you want to use it strongly and long. Since it can be made selectable, the degree of use satisfaction can be improved in accordance with the preference of the user. Furthermore, if a plurality of small-capacity storage boxes 93 can be attached, usability can be further improved.

FIG. 18 shows an example in which the storage box 93 or the code unit 96 described above is stored in the unit mounting portion 33 provided at the rear of the main body 1. The electrical connection by the external terminal 91 and the connection terminal portion 20 and the locking structure by the clamp 94 are the same, but the cord unit 96 is
If the button 94A is not pressed and lifted, it will not come off, so if it is just pressed, a lock release function of the cord reel 95 for winding up the power cord 97 is provided. In the figure, the shape of the storage box 93 or the cord unit 96 is surrounded by the main body 1, which is more advantageous in terms of prevention of detachment and mechanical strength than the above-described upper and rear arrangement. FIGS. 19 and 20 show perspective views of the external appearance, and FIG. 21 shows a longitudinal sectional view.

FIG. 22 shows a side view of a state in which the main body 1 described with reference to FIG. FIG. 23 is a plan view of the main body 1 and the suction port 6 placed on the storage table 7 and viewed from above. By making the rear surface of the charging stand 7 substantially coincide with the outer circumferences of the casters 10 and the wheels 15 on the lower surface of the main body 1, compact storage at the wall is possible without any gap.
Since the charging stand 7 also serves as a charger, the storage unit 2 for the electrical components 30 such as a transformer and a capacitor required for charging.
9 is arranged in a space formed on both sides between the main body 1 and the mouthpiece 6, so that it can be made compact without taking another new place. FIG. 24 shows an exploded perspective view of the charging stand 7, which is a charging electric component and a transformer 30A having a large volume.
By accommodating the control IC 30B, the capacitor 30C, and the like on both sides serving as dead spaces between the positions where the main body 1 and the suction port 6 are arranged, it is possible to eliminate unnecessary space and make the apparatus compact. Further, FIG. 25 shows a storage case 20 for storing the power cord 97 used in the embodiment in FIG.
FIG. 2 is a perspective view in which 0 is provided on a charging stand 7. Since the rear surface of the main body 1 is recessed from the wheels 15 on both sides, the rear surface and the charging stand 7
The storage case 200 is disposed in a gap generated between the storage case 200 and the storage case 200. When the battery 9A is used and the power cord 97 is not used, if the battery 9A is put in the storage case and put on the charging stand 7, it can be used immediately without losing it. FIG. 26 is a perspective view showing the lower surface of the charging stand 7. In this embodiment, the power supply cord 300 is provided on the rear side.

Next, regarding the suction port 6, in this embodiment, the battery 9 is used.
B is a charging method. FIG. 27 shows the arrangement of each component. A rotary brush 11 is a drive belt in front of the suction port 6.
Rotated by electric motor 160 via 150. Electric motor 16
The control circuit 170 component is disposed on the side opposite to the reference numeral 0, and a battery 9B serving as a power source is disposed therebetween, that is, below the joint portion 180. From the weight balance, the left and right motors 160 and the control circuit 170 are almost even with the battery 9B in the center.
, The center of gravity is located substantially at the center in the left-right direction, and the usability is improved. In addition, the lower part of the joint 180 is generally a dead space, and the arrangement of the battery 9B enables downsizing without increasing the size of the suction port 6.

FIG. 28 is a perspective view showing the external appearance of the suction port 6, and FIG. 29 is a perspective view showing an exploded state of components provided on the lower surface. In FIG. 27, on the upper surface of the suction opening 6, an operation display section 190 of the rotating brush 11 composed of an LED and a switch 191 for operation are provided. In FIG. 28, a battery 62 that can be locked and opened by rotating a coin or the like by covering the battery 9B stored in the storage unit 60 at the center with a battery lid 61 is shown.
Is fixed to the mouthpiece 6. With this configuration, maintenance properties such as replacement of the battery 9B are improved. Similarly, the brush cover 63 of the rotary brush 11 is fixed by the piece 64. The lever 65 is composed of a limit switch and a roller 66, and is urged by a spring or the like so that the roller always projects from the lower surface of the suction port 6 toward the floor. In the case of normal floor cleaning, the roller 66 contacts the floor with a small amount of protrusion and rotates according to the operation. In this state, the electric motor 160 is operated without turning off the limit switch and the rotating brush 11 rotates. However, once the mouthpiece 6 is lifted,
When the lever 65 is separated from the floor surface and the amount of protrusion increases and reaches a predetermined height, the limit switch is turned off, the power to the electric motor 160 is cut off, and the rotation of the rotary brush 11 stops. Therefore, there is no danger that when the mouthpiece 6 is lifted, a hand or a foot is mistakenly put on the lower surface of the mouthpiece 6 and is caught in the rotating brush 11 to cause an injury. In FIG. 27, a switch 191 provided on the upper surface of the mouthpiece 6 can be operated so that the user can select ON / OFF of the rotary brush 11 by foot or hand. Further, the sensor 67 in FIG. 28 is provided so as to detect the operation state of the mouthpiece 6, and only when the mouthpiece 6 is operated,
The motor 160 is operated to rotate the rotating brush 11 automatically. The sensor 67 is provided with a roller that rotates in contact with the floor surface and detects rotation of the roller,
There is a lever method that tilts in accordance with the operation before and after, a method that detects a change in pressure, light, ultrasonic waves, or a current of the electric motor 160. FIG. 30 shows the disassembled state. FIG. 31 shows another embodiment. The battery 9B is provided with an opening and a battery lid 61 so as to be taken out from above the rear part of the suction port 6, and the piece 6
2 fixed. By taking it up, unlike the bottom surface, it can be kept relatively clean with less dirt. Since the intrusion of dust is small, the reliability of the battery 9B can be improved. The longitudinal section is shown in FIG. 33 and 34 show an example in which the battery 9B is taken out from the lateral direction. It is advantageous in terms of strength to provide the battery lid in the horizontal direction from the use state of the suction opening which is easily subjected to an impact load in the vertical direction or the front-back direction. FIG.
5 shows another embodiment. By arranging the battery 9B using the dead space in terms of external design or functional structure, compactness can be realized without increasing the size. FIG. 36 shows an example in which the battery 9B and the electric motor 160 are arranged inside the rotating brush 11.

FIG. 37 shows another embodiment. In the figure, the exhaust from the main body 1 is applied to the periphery of the main body 1, that is, the front bumper 3.
00, a plurality of minute holes 301 are formed in the side wheels 15 and the rear surface, and exhaust gas is exhausted therefrom. Conventionally, when air is exhausted in one place, the air volume is large and the surrounding dust is blown up, so that the user may feel uncomfortable. In the present embodiment, the amount of exhaust gas discharged from each of the micro holes 301 is small, and the exhaust gas is dispersed and exhausted over almost the entire circumference of the main body 1. Therefore, the exhaust can be performed without blowing up the surrounding dust, thereby giving the user discomfort. Absent. In particular, in the present embodiment, attention is paid to the prevention of dust from rising, and the wheel 15 and the bumper 3
In each case, the micro holes 301 were provided only in the upper part of each of the samples No. 00, and the exhaust gas was further kept away from the floor surface. FIG. 38 is a perspective view showing the disassembly. Lower case 1 that constitutes main body 1
In A, a discharge hole 302 for exhaust gas is provided in an opposite portion to a minute hole 301 provided in each component, and the exhaust from the electric blower 12 is exhausted from the minute hole 301 to the outside. The flow state of the exhaust gas is indicated by an arrow in FIG.

[0039]

As described above, according to the present invention, since the battery is stored in each of the cleaner body and the suction opening, the power cord is replaced in each room to be cleaned, and the power cord is entangled during cleaning. Bugs can be resolved,
Operability is improved.

Further, the support portions on both sides of the handle provided on the upper surface of the main body are located above the electric blower, and the positions of the center of gravity of the dust collecting chamber, the storage room of the electric blower and the battery are supported on both sides of the handle when viewed from above the main body. Because it was configured to be between the departments
Weight balance when carrying the vacuum cleaner body,
Usability such as carrying can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external appearance of a housed state of a vacuum cleaner according to one embodiment of the present invention.

FIG. 2 is a perspective view showing an external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 3 is a sectional view of a vacuum cleaner according to one embodiment of the present invention.

FIG. 4 is a sectional view of a vacuum cleaner according to an embodiment of the present invention.

FIG. 5 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a vacuum cleaner main body and a battery according to an embodiment of the present invention.

FIG. 7 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 8 is a perspective view showing the vacuum cleaner main body and the battery according to the embodiment of the present invention disassembled.

FIG. 9 is an exploded perspective view showing a vacuum cleaner main body, a battery storage box, and a cord unit according to an embodiment of the present invention.

FIG. 10 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 11 is a longitudinal sectional view of a vacuum cleaner according to one embodiment of the present invention.

FIG. 12 is a perspective view showing an exploded view of a cleaner body and a cover according to an embodiment of the present invention.

FIG. 13 is an exploded perspective view illustrating a vacuum cleaner main body, a battery storage box, and a cord unit according to an embodiment of the present invention.

FIG. 14 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 15 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 16 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 17 is a longitudinal sectional view of a vacuum cleaner according to one embodiment of the present invention.

FIG. 18 is an exploded perspective view showing a vacuum cleaner main body, a battery storage box, and a cord unit according to an embodiment of the present invention.

FIG. 19 is a perspective view showing the appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 20 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention.

FIG. 21 is a longitudinal sectional view showing a vacuum cleaner according to one embodiment of the present invention.

FIG. 22 is a side view showing a vacuum cleaner storage state according to an embodiment of the present invention.

FIG. 23 is a plan view showing a vacuum cleaner storage state according to an embodiment of the present invention.

FIG. 24 is an external perspective view showing an exploded state of the charging stand according to one embodiment of the present invention.

FIG. 25 is an external perspective view showing a disassembled state of the charging stand according to one embodiment of the present invention.

FIG. 26 is an external perspective view showing the lower surface of the charging stand according to one embodiment of the present invention.

FIG. 27 is a plan view of a mouthpiece according to one embodiment of the present invention.

FIG. 28 is an external perspective view of a mouthpiece according to one embodiment of the present invention.

FIG. 29 is a perspective view showing the disassembled lower surface of the mouthpiece according to one embodiment of the present invention.

FIG. 30 is a perspective view showing disassembly of a mouthpiece according to one embodiment of the present invention.

FIG. 31 is a perspective view showing a battery storage state of a mouthpiece according to one embodiment of the present invention.

FIG. 32 is a longitudinal sectional view showing a state in which the battery is housed in the mouthpiece according to one embodiment of the present invention.

FIG. 33 is a perspective view showing the battery storage state of the mouthpiece according to one embodiment of the present invention.

FIG. 34 is a longitudinal sectional view showing a state in which a battery is housed in a mouthpiece according to an embodiment of the present invention.

FIG. 35 is a perspective view showing a battery storage state of a mouthpiece according to an embodiment of the present invention.

FIG. 36 is a perspective view showing the disassembly of the mouthpiece according to one embodiment of the present invention.

FIG. 37 is a perspective view of a main body according to another embodiment of the present invention.

FIG. 38 is an exploded perspective view of a main body according to another embodiment of the present invention.

FIG. 39 is an exploded perspective view of a main body according to another embodiment of the present invention.

FIG. 40 is a perspective view showing the vacuum cleaner body and the battery according to an embodiment of the present invention disassembled.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body, 6 ... Suction, 7 ... Charge stand, 8 ... Terminal protrusion, 9
A, 9B: battery, 11: rotating brush, 12: electric blower, 14: handle, 15: wheels, 34: partition, 35:
Battery storage unit, 36 fan, 37 cover, 91 external terminal, 92 connection terminal, 93 storage box, 94 clamp, 95 code reel, 96 code unit, 97
…Power cord.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masao Sunagawa 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi Taga Electronics Co., Ltd. (72) Inventor Koichi Umezawa 1-280-1, Higashi-Koikekubo, Kokubunji-shi, Tokyo Inside Hitachi Design Co., Ltd. (72) Inventor Takahiro Nakai 1-1-1, Higashitagacho, Hitachi City, Ibaraki Prefecture Inside Hitachi Taga Electronics Co., Ltd. (72) Inventor Kyoichi Sugano 1-1-1, Higashitagacho, Hitachi City, Ibaraki Prefecture 1 Hitachi Taga Electronics Co., Ltd. (72) Inventor Kenichi Tada 1-1-1, Higashi Taga-cho, Hitachi City, Ibaraki Prefecture (72) Inventor Hisanori Toshima 1-chome, Higashi Taga-cho, Hitachi City, Ibaraki Prefecture No. 1 F-ter in Hitachi Taga Electronics Co., Ltd. (Reference) 3B006 AA08 DA03 3B057 DA08 DE01 FA01 FA14 3B061 AA06 AA26 AD05 AE02 AE12

Claims (15)

[Claims] 1. A vacuum cleaner having a flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a tip of the extension tube. A battery A is housed as a power supply for the storage chamber of the blower and the electric blower, a rotary brush driven by a motor is provided in the suction port, and a battery B is provided in the suction port as a power supply for the motor. Vacuum cleaner. 2. The vacuum cleaner according to claim 1, wherein the batteries A and B are rechargeable secondary batteries, and the main body and the suction port are placed on one charging stand so that they can be charged simultaneously. . 3. The vacuum cleaner according to claim 1, wherein the battery capacity of the battery A is larger than that of the battery B. 4. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a distal end of the extension tube. In a storage chamber for an electric blower and a vacuum cleaner containing a rechargeable battery as a power supply for the electric blower, the main body is placed upright on a separate charging stand with the rear surface of the main body facing down, and stored together with the suction port. And a charging terminal portion for the battery provided on a rear surface of the main body. 5. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a distal end of the extension tube. In a vacuum cleaner in which a dust collecting chamber, a storage room for an electric blower, and a battery that can be charged as a power supply of the electric blower are stored in this order, the shaft center of a floor moving wheel provided on the main body is electrically driven in the front-rear direction of the main body. It is provided so as to overlap with the blower and the storage portion of the battery, and furthermore, when viewed from above the main body, the position of the center of gravity of the electric blower and the battery is located between both side support portions of the handle provided on the upper surface of the main body. Characterized vacuum cleaner. 6. The electric vacuum cleaner according to claim 5, wherein both side support portions of the handle are located above the electric blower in the front-rear direction of the main body. 7. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a tip of the extension tube. An electric vacuum cleaner containing a storage room for an electric blower and a battery that can be charged as a power supply for the electric blower, wherein the battery is stored in a storage part that shields an exhaust flow of the electric blower. . 8. The vacuum cleaner according to claim 7, wherein the battery housing has an opening communicating with the atmosphere. 9. The electric vacuum cleaner according to claim 7, wherein the battery storage section has an opening communicating with the atmosphere, and a fan is provided so as to flow air into the storage section through the opening. 10. The vacuum cleaner according to claim 9, wherein a flow path in the storage section is formed so that the air flow in the storage section flows along the longitudinal direction of the battery. 11. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a tip of the extension tube. In a storage room for the electric blower and a vacuum cleaner containing a chargeable battery as a power supply for the electric blower, a power cord and the other end of a plug of the power cord are connected to a home AC power supply so that the electric blower can be operated. A power supply connecting portion electrically connected to the provided terminal is provided on the main body, and when the terminal is connected to the power supply connecting portion, the electric blower side and the battery are electrically disconnected, and the terminal is connected to the power connecting portion. An electric vacuum cleaner wherein the battery and the electric blower are connected when the electric vacuum cleaner is disconnected from the electric vacuum cleaner. 12. The cover according to claim 11, wherein a recess is provided on the surface of the main body, the power supply connection portion is disposed inside the cover, and a cover is formed to open and close the opening of the recess, and the cover is opened. In the case, the electric blower side and the battery are electrically disconnected, and the battery is connected to the electric blower side when the lid is closed, so that the electric blower is configured to interlock with opening and closing of the lid. Vacuum cleaner. 13. A flexible hose having one end connected to a main body, an extension pipe at the other end of the hose, and a suction port at a tip of the extension pipe. In a vacuum cleaner containing an electric blower and a rechargeable battery serving as a power supply for the electric blower, the battery has a cell number of 15 to
A vacuum cleaner characterized by being provided in a main body in at least one package of at least 25 packages. 14. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a tip of the extension tube. An electric blower and a vacuum cleaner including a battery that can be charged as a power supply of the electric blower and a connection unit to a home AC power supply, wherein the maximum power consumption of the electric blower when using a home AC power supply is: An electric vacuum cleaner wherein power consumption when a battery is used as a power source is set to 30% or less. 15. A flexible hose having one end connected to a main body, an extension tube at the other end of the hose, and a suction port at a distal end of the extension tube. In a vacuum cleaner provided with an electric blower and a battery capable of being charged as a power supply of the electric blower and a connecting means to a home AC power supply, the maximum power consumption of the electric blower when the home AC power supply is used is about 1000 W, An electric vacuum cleaner wherein power consumption is set to 300 W or less when the battery is used as a power supply.