JPS6171025A - 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 Field of Industrial Application The present invention relates to a vacuum cleaner using a battery as a power source.

Conventional configuration and its problems Traditionally, vacuum cleaners that use batteries as a power source have
It is common to have a grid-like exhaust port on the wall of the main body, and to attach a urethane foam or the like to the inside of the exhaust port to filter carbon or minute dust leaks from the electric blower and prevent the exhaust from becoming dirty. there were. However, this configuration has the disadvantage that even if the urethane foam becomes dirty during use, it cannot be replaced or cleaned without disassembling the main body. Therefore, the exhaust gas that has passed through the dirty urethane platform is not only prevented from becoming dirty, but is also discharged in an even more dirty state with the addition of dirt from the dirty urethane platform. In addition, the strength of the grid-shaped exhaust port is very weak, and there was a risk that the grid could be damaged if the main unit was accidentally dropped. In a configuration in which the motor, fan, etc. are attached to the wall of the main body, it is necessary to remove the hanging brackets for the built-in parts of the motor, fan, etc. and replace them with another main body part equipped with an exhaust port, which is extremely time-consuming and difficult to repair. there were. Furthermore, terminal plates and the like that are welded and fixed to the main body cannot be removed and cannot be reused.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional art, and makes it possible to extremely easily remove filter media such as lattice filters for efficient cleaning and replacement. Repairs are also extremely easy.

The purpose is to make it possible.

In order to achieve the second object of ``Structure of the Invention'', the vacuum cleaner of the present invention has an electric blower, a battery that serves as a power source for the electric blower, and a lid for replacing the battery is removably provided on the vacuum cleaner body. This lid is provided with an exhaust port, and an exhaust filter material is provided inside the lid.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, (1) is a main body, and (2) is a dust collection case that is detachably connected to the main body (1) via a buckle (3). A handle (4) is formed on the upper part of the main body (1), and a switch (5) is provided in front of the handle (4).
) are installed. Furthermore, an electric blower consisting of a fan (6) and its driving motor (7) is arranged below the handle (4) in the main body (1), and a rechargeable battery (8) is arranged below it. , At the rear of the main body (1) there is a charging terminal (for connecting with an external charger to charge the battery (8)).
9), an overcharge prevention device (10) for preventing overcharging of the battery (8), and a charging indicator lamp (
11) is provided. Further, the battery (8) can be replaced via a battery replacement lid (12) that is removably provided at the rear of the main body (1). The motor (7) of the battery (8)
) and the overcharge prevention device (10) are made by a terminal plate (13) fixedly supported by the main body (1) and a terminal plate (not shown) built into the battery (8). (14) is an exhaust port provided in the battery exchange lid (12), and a urethane foam (23) is attached to the inside thereof.

The tip of the dust collection case (2) has a suction port (15), a brush (16) removably provided on the bottom surface of the suction port (15), and a suction port (
15) and a check valve (17) that is installed at the back and serves to prevent dust from leaking. Brush here (16)
is provided approximately parallel to the suction port (15), and the brush (1
6) The length of the hair is the lower end tip (15a) of the suction port (15).
) has been adjusted to approximately match. (18) is a filter that is removably installed inside the dust collection case (2).
It is fixed to a support plate (19) to prevent its deformation and crushing. The support plate (19) is made integrally with a packing (20) for air tightness and dust tightness. (21) is a fixing base disposed at the lower part of the main body (1) and removably connected to a separate wall hanging bracket (22).

The connection between the wall hanging bracket (22) and the fixing base (21) of the main body (1) is as shown in Figure 2, with the main body (1) facing down and the dust box (2)
) on both sides of the fixing base (21) so that the
1a) is inserted into an inverted-shaped protrusion (22a) formed on the wall-hanging fitting (22). Therefore, the user can smoothly attach the vacuum cleaner to the wall bracket (22) without having to change his/her grip on the handle (4) of the main body (1).

In the above configuration, the dust-containing air sucked from the suction port (15) is collected by the filter (18), and the dust is collected by the fan (6).
The airflow passes through the motor (7) and the battery (8), and is discharged from the exhaust port (14), and the airflow flows smoothly in a straight line. At that time, the exhaust flow that is contaminated with carbon from the motor (7) and fine dust leaked from the filter (18) is filtered when passing through the urethane foam (23) and is sent to the outside of the main body (1). Prevents dirty exhaust stream from being discharged. If the urethane foam (23) becomes dirty during use and cannot sufficiently filter the dirty exhaust stream, or if it is so dirty that it pollutes the exhaust stream passing through, replace the battery replacement lid (12). By removing the urethane foam from the main body (1) and replacing or cleaning the urethane foam (23) and regenerating it, the dirty exhaust flow can be sufficiently filtered and the exhaust flow can be cleaned. Replacing or cleaning the urethane platform (23) is a very simple operation, just by removing the detachable battery replacement cover (12) from the main body (1). Also, during use, the main body (1) (12
) from the main body (1) and replace it.
,.

If the grating of the exhaust port (14), which is weak and easily damaged, is damaged due to accidental dropping of the It is not necessary and can be replaced and repaired very easily.The exhaust port provided on the side can be removed from the side of the main body in the left and right direction. In addition, until now, it was common to have a device that protruded from the wall of the main body, or an exhaust port that was angled from the side of the main body so that the exhaust was discharged diagonally behind the main body. This has the drawback of blowing away debris in the left and right directions and diagonally behind. In addition, the airflow that is drawn in and passes through the inside of the main body is bent at right angles or diagonally to the direction of flow before being discharged, so the airflow is not smooth and can cause pressure loss. , which had the disadvantage of deteriorating performance. However, in the present invention, as shown in FIG.
By providing the battery exchange lid (12) with a battery replacement cover (14) at the rear of the main body (1), the sucked air flow is not bent and is routed through the filter (18), fan (6), motor (
7), it flows smoothly in a straight line with the battery (8), preventing performance deterioration due to pressure loss, and by arranging the exhaust to the rear from the rearmost part of the main body (1), the main body (1) is cooled during use. There is no need to worry about blowing away debris on the sides.

By the way, in general, in this type of battery-powered vacuum cleaner,
Motors, fans, and batteries are naturally limited in thickness. In order to improve performance under such circumstances, the key is to bring out the best performance of motors, fans, batteries, etc. The performance of the battery (8) largely depends on the surrounding environment, especially the temperature. When the ambient temperature is low, the internal activity becomes inactive, and the discharge time (vacuum cleaner usage time) tends to become shorter. As the ambient temperature rises, internal activity increases, and if left unused for a long time, self-discharge will occur quickly, meaning that it may become impossible to use it again unless it is recharged. In particular, if the battery (8) is left in an extremely high temperature environment, the water and gas generated inside the battery will be released for safety reasons, resulting in a decrease in the performance of the battery (8) and a shortening of its lifespan. However, by arranging the exhaust port (14) in the battery exchange lid (12) located near the battery (8), the battery (8) can be cooled or kept warm at an appropriate temperature by the exhaust air, and ventilation can be improved. This prevents the temperature inside the main body (1) from increasing and prevents the deterioration of battery performance due to the above-mentioned temperature effects.

Effects of the Invention As described above, according to the present invention, the exhaust port is provided in the battery replacement lid that is detachably provided in the main body, so that the filter material such as urethane foam that is attached to the inner surface of the exhaust port and is applied as an exhaust source can be used. Replacement, cleaning and regeneration can be done by simply removing the battery replacement cover from the main body. Furthermore, by cooling or keeping the battery at an appropriate temperature using the exhaust air while the vacuum cleaner is in use, it was possible to lengthen the discharge time of the battery (lengthen the usage time of the vacuum cleaner). Additionally, even if the vacuum cleaner is left in high temperature conditions, the exhaust port is close to the battery, which prevents heat from accumulating near the battery and extends the life of the battery. . Furthermore, the easily damaged exhaust port portion can be replaced or repaired simply by replacing the detachable battery replacement cover.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a vacuum cleaner showing an embodiment of the present invention, and FIG. 2 is a perspective view of the vacuum cleaner attached to a wall-mounted fitting.

Claims (1)

[Scope of Claims] 1. An electric blower, which has a battery that serves as a power source for the electric blower, and a lid for battery replacement is removably provided on the vacuum cleaner body, and an exhaust port is provided on the lid. A vacuum cleaner with an exhaust filter inside. 2. The vacuum cleaner according to claim 1, wherein a battery replacement cover having an exhaust port is provided at the rear of the main body.