JP6953895B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

In an electric vacuum cleaner, a battery pack storage unit that houses a battery pack in which a plurality of secondary batteries are bundled and an electric wire is attached, and a battery pack storage unit that houses the battery pack storage unit inside and exhausts the internal air to the outside. It is known that a housing having a port is provided, and an outflow hole for allowing air to flow out of the battery pack storage portion is formed in an exhaust side wall portion on the exhaust port side of the battery pack storage portion. (See, for example, Patent Document 1).

JP-A-2002-291669

In the vacuum cleaner shown in Patent Document 1, when the pressure in the battery pack storage portion suddenly increases due to an abnormality in the battery pack or the like, a high-speed air flow may be discharged from the outflow hole of the battery pack storage portion. Conceivable. In the vacuum cleaner shown in Patent Document 1, an outflow hole of the battery pack storage portion is formed in the exhaust side wall portion of the battery pack storage portion. That is, the outflow hole of the battery pack storage portion is on the exhaust port side of the housing. Therefore, the high-speed airflow discharged from the outflow hole of the battery pack storage portion reaches the exhaust port of the housing by a linear path, and is discharged as it is from the exhaust port of the housing. Further, when fine debris or the like is generated in the battery pack storage part, the debris or the like may pass straight through the outflow hole of the battery pack storage part and the exhaust port of the housing and jump out of the housing. There is sex.

The present invention has been made to solve such a problem. The purpose is that when the pressure inside the enclosure surrounding the secondary battery housed inside the vacuum cleaner housing increases, the pressure inside the enclosure can be released to the outside of the enclosure, and at that time. It is possible to prevent the airflow ejected from the enclosure from being discharged to the outside through the opening of the vacuum cleaner housing in a straight path, and even if fine debris is generated inside the enclosure, these debris, etc. The purpose is to obtain an electric vacuum cleaner that can prevent the vacuum cleaner from jumping out of the vacuum cleaner housing.

The vacuum cleaner according to the present invention includes a vacuum cleaner housing in which a secondary battery is housed, an enclosure that is arranged inside the vacuum cleaner housing and is provided so as to surround the periphery of the secondary battery. The enclosure is provided with a hole formed with a hole communicating with the inside and the outside of the enclosure, and the vacuum cleaner housing is the inside of the vacuum cleaner housing leading to the hole and the vacuum cleaner housing. A first opening forming surface that is formed with a first opening that communicates with the outside of the body and is provided with a handle portion that is held by the user to support the vacuum cleaner housing in a used state, and the above. A second opening that communicates with the inside of the vacuum cleaner housing leading to the hole and the outside of the vacuum cleaner housing is formed, and a second opening forming surface different from the first opening forming surface is provided. The hole is arranged on the surface of the enclosure that does not face either the first opening forming surface or the second opening forming surface, is provided inside the vacuum cleaner housing, and is discharged from the hole. further Ru comprising a guide member for guided airflow to the second opening.

According to the vacuum cleaner according to the present invention, when the pressure inside the enclosure surrounding the secondary battery housed inside the vacuum cleaner housing increases, the pressure inside the enclosure is released to the outside of the enclosure. At the same time, it is possible to prevent the airflow ejected from the enclosure from being discharged to the outside through the opening of the vacuum cleaner housing in a straight path, and when fine debris is generated inside the enclosure. Even if there is, it is possible to prevent the debris from jumping out of the vacuum cleaner housing.

It is sectional drawing which shows typically the whole structure of the electric vacuum cleaner which concerns on Embodiment 1 of this invention. It is a figure explaining the air flow during operation of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the main part of the electric vacuum cleaner which concerns on Embodiment 1 of this invention in an enlarged manner schematically. It is a figure explaining the path that the airflow ejected from the enclosure of the vacuum cleaner which concerns on Embodiment 1 of this invention is discharged to the outside of the vacuum cleaner housing. FIG. 5 is a cross-sectional view schematically showing another example of the overall configuration of the vacuum cleaner according to the first embodiment of the present invention. It is sectional drawing which shows typically the whole structure of the electric vacuum cleaner which concerns on Embodiment 2 of this invention.

A mode for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are designated by the same reference numerals, and duplicate description will be appropriately simplified or omitted. The present invention is not limited to the following embodiments, and can be variously modified without departing from the spirit of the present invention.

Embodiment 1.
1 to 5 relate to the first embodiment of the present invention, FIG. 1 is a cross-sectional view schematically showing an overall configuration of a vacuum cleaner, and FIG. 2 shows an air flow during operation of the vacuum cleaner. FIG. 3 is a cross-sectional view schematically showing an enlarged main part of the vacuum cleaner, and FIG. 4 is a diagram and a diagram illustrating a path through which the airflow ejected from the enclosure is discharged to the outside of the vacuum cleaner housing. FIG. 5 is a cross-sectional view schematically showing another example of the overall configuration of the vacuum cleaner.

In the following description, dust and other dust may be collectively referred to as "dust". In addition, air mixed with dust may be referred to as "dust-containing air". The air from which dust has been removed may be referred to as "clean air".

The vacuum cleaner 1 according to the first embodiment of the present invention is a cordless type vertical vacuum cleaner. As shown in FIG. 1, the vacuum cleaner 1 includes a vacuum cleaner housing 100 and a dust collector 200. The vacuum cleaner housing 100 includes a body portion 110, a pipe portion 120, and a handle portion 130. The body portion 110 is a central portion of the vacuum cleaner housing 100. A pipe portion 120 is provided on the surface of the body portion 110 on one end side. A handle 130 is provided on the other end surface of the body 110.

The tube portion 120 is a hollow tubular member. One end of the pipe portion 120 is attached to the body portion 110. A suction port 121 is formed at the other end of the pipe portion 120. The suction port 121 is an opening for sucking in dust. Inside the pipe portion 120, a pipe line is formed to guide the air flow of the dust-containing air passing through the suction port 121 to the dust collecting portion 200.

It is also possible to connect an extension pipe, a suction tool, or the like (not shown) to the suction port 121 of the pipe portion 120 for use. Further, in a state where the suction tool is connected to the suction port 121 of the pipe portion 120, the suction tool is placed on the floor surface or the like, and the vacuum cleaner 1 is arranged above the suction tool to obtain an electric vacuum cleaner. 1 can be made upright. The state in which the vacuum cleaner 1 is upright is also referred to as an "upright state" here.

Hereinafter, in this upright state, the direction in which the pipe portion 120 is located with respect to the handle portion 130 will be referred to as “below” the vacuum cleaner 1, and the opposite side thereof will be referred to as “upper” of the vacuum cleaner 1. Further, in the upright state, the side where the dust collecting portion 200 is located with respect to the pipe portion 120 is defined as the "front" of the vacuum cleaner 1 with respect to the direction perpendicular to the direction connecting the top and bottom of the vacuum cleaner 1, and the opposite side thereof. Will be described as "behind" the vacuum cleaner 1.

The handle portion 130 is a portion that the user holds by hand while using the vacuum cleaner 1. The user can support the vacuum cleaner 1 in a desired state by grasping the handle portion 130. Specifically, for example, the vacuum cleaner 1 can be supported with the suction port 121 facing the floor surface to be cleaned and the handle portion 130 away from the floor surface at a position where the user can easily hold the vacuum cleaner 1. can. In this state, the vacuum cleaner 1 is tilted with respect to the floor surface. The state in which the vacuum cleaner 1 is tilted with the suction port 121 facing downward is also referred to as a "use state" here. It can be said that the handle portion 130 is for the user to hold the vacuum cleaner housing 100 by hand and support the vacuum cleaner housing 100 in a used state. The up, down, front, and back arrows shown in FIG. 1 are the directions when the vacuum cleaner 1 is in use.

The dust collecting unit 200 is detachably attached to the vacuum cleaner housing 100. In the configuration example shown in FIG. 1, the dust collecting portion 200 is arranged below the body portion 110 and in front of the pipe portion 120. The dust collecting unit 200 separates dust from the dust-containing air sucked from the suction port 121, and collects the dust. The dust collector 200 in this embodiment includes a cyclone separator. Instead of the dust collecting unit 200 having a cyclone separator, for example, a dust collecting unit that collects dust by filtering the air flow with a dust collecting bag may be provided.

An electric blower 111, a secondary battery 113, and a substrate 114 are housed inside the vacuum cleaner housing 100. In the configuration example shown in FIG. 1, the electric blower 111, the secondary battery 113, and the substrate 114 are housed inside the body portion 110 of the vacuum cleaner housing 100. The electric blower 111 generates an air flow for sucking in dust.

The secondary battery 113 serves as a power source for driving the electric blower 111. The secondary battery 113 is specifically, for example, a lithium ion battery (LIB). The secondary battery 113 is rechargeable. A battery chamber 112 is formed inside the vacuum cleaner housing 100. In the configuration example shown in FIG. 1, the battery compartment 112 is provided in the body portion 110 of the vacuum cleaner housing 100. The secondary battery 113 is housed inside the battery compartment 112.

The substrate 114 is provided with at least a circuit for controlling charging and discharging of the secondary battery 113. Further, a circuit for controlling the overall cleaning operation of the vacuum cleaner 1 including the operation of the electric blower 111 may be provided on the same substrate 114.

The vacuum cleaner housing 100 is formed with a first exhaust port 141 and a second exhaust port 142. The first exhaust port 141 and the second exhaust port 142 are arranged in the body portion 110 of the vacuum cleaner housing 100. An air passage is formed inside the vacuum cleaner housing 100. This air passage is formed inside the body portion 110 of the vacuum cleaner housing 100. Each of the first exhaust port 141 and the second exhaust port 142 communicates with the air passage inside the vacuum cleaner housing 100. The electric blower 111, the secondary battery 113, and the substrate 114 are arranged in the air passage inside the vacuum cleaner housing 100.

Next, the cleaning operation of the vacuum cleaner 1 configured as described above will be described with reference to FIG. When the electric blower 111 is operated to start the cleaning operation of the vacuum cleaner 1, airflows as shown by arrows A to C shown in FIG. 2 are generated. In the following description, each of the airflows indicated by arrows A to C will be referred to as "airflow A", "airflow B", and "airflow C".

First, the dust on the surface to be cleaned to which the suction port 121 is directed is sucked into the inside of the pipe portion 120 from the suction port 121 together with the surrounding air (air flow A). The dust-containing air sucked into the inside of the pipe portion 120 enters the inside of the dust collecting portion 200 from the pipe portion 120. The dust-containing air that has entered the dust collecting unit 200 is swirled inside the dust collecting unit 200 (air flow B). Centrifugal force acts on foreign matter such as dust in the swirling airflow B. Therefore, foreign matter such as dust is centrifuged from the airflow B swirling inside the dust collecting unit 200.

The clean air from which foreign substances such as dust have been removed by centrifugation in the dust collecting unit 200 enters the above-mentioned air passage in the body portion 110 of the vacuum cleaner housing 100 from the dust collecting unit 200. That is, the above-mentioned air passage formed inside the vacuum cleaner housing 100 is an air passage for the airflow that has passed through the dust collecting portion 200. The airflow C in the above-mentioned air passage in the vacuum cleaner housing 100 first passes through the electric blower 111.

The airflow that has passed through the electric blower 111 collides with the battery compartment 112 and separates. One of the separated airflows goes to the rear side of the battery compartment 112 and is discharged from the first exhaust port 141 to the outside of the vacuum cleaner housing 100 (arrow C1). The other side of the separated airflow goes to the front side of the battery compartment 112 and is discharged to the outside of the vacuum cleaner housing 100 from the second exhaust port 142 (arrow C2). By arranging the secondary battery 113 and the substrate 114 in the air passage inside the vacuum cleaner housing 100 in this way, the secondary battery 113 and the substrate 114 can be cooled by the air flow in the air passage.

Next, with reference to FIG. 3, a configuration particularly related to the accommodating portion of the secondary battery 113 will be described. As shown in the figure, an enclosure 10 is provided inside the body portion 110 of the vacuum cleaner housing 100. The enclosure 10 is provided so as to surround the secondary battery 113. The enclosure 10 is a hollow box-shaped member made of a nonflammable material such as metal.

As described above, the secondary battery 113 is housed inside the battery compartment 112. The enclosure 10 is also arranged inside the battery compartment 112 while surrounding the secondary battery 113. The enclosure 10 has an outer shape that matches the shape of the battery compartment 112.

The enclosure 10 includes a hole. In the hole portion, a hole communicating with the inside and the outside of the enclosure 10 is formed. In the first embodiment described here, the enclosure 10 includes a porous structure portion 11 as an example of the hole portion. That is, the porous structure portion 11 has a plurality of holes. Each hole of the porous structure portion 11 communicates with the inside and the outside of the enclosure 10. Specifically, the porous structure portion 11 includes, for example, a punching metal, a metal mesh, or the like. The hole portion of the enclosure 10 may be one having at least one through hole, not the porous structure portion 11 having a plurality of holes.

As described above, the vacuum cleaner housing 100 is formed with a second exhaust port 142. The second exhaust port 142 is arranged on the opening forming surface 150 in the body portion 110 of the vacuum cleaner housing 100. The opening forming surface 150 is a surface arranged on the front side when the vacuum cleaner housing 100 is upright.

As described above, the second exhaust port 142 communicates with the above-mentioned air passage in the vacuum cleaner housing 100. The enclosure 10 is arranged in the above-mentioned air passage in the vacuum cleaner housing 100. Therefore, the second exhaust port 142 is an opening that communicates the inside of the vacuum cleaner housing 100 that communicates with the hole (porous structure portion 11) of the enclosure 10 and the outside of the vacuum cleaner housing 100. .. As described above, the vacuum cleaner housing 100 includes an opening forming surface 150 having an opening that communicates the inside of the vacuum cleaner housing 100 that communicates with the hole and the outside of the vacuum cleaner housing 100. It should be noted that such an opening does not have to be the exhaust port of the vacuum cleaner 1. That is, the enclosure 10 does not have to be arranged in the air passage of the airflow passing through the dust collecting portion.

The porous structure portion 11 which is a hole portion is arranged on a surface of the plurality of surfaces of the box-shaped enclosure 10 which does not face the opening forming surface 150. A first guide member 12 is provided on the surface of the enclosure 10 on which the porous structure portion 11 is formed. In the first embodiment, the first guiding member 12 is a plate-shaped member. One end of the first guide member 12 is fixed to the surface on which the porous structure portion 11 is formed. One end of the first guiding member 12 is located at a position away from the opening forming surface 150 with respect to the porous structure portion 11. The other end side of the first guide member 12 is arranged so as to incline and extend toward the side of the opening forming surface 150.

A second guide member 116 is provided inside the body 110 of the vacuum cleaner housing 100. In the first embodiment, the second guide member 116 is a plate-shaped member. One end of the second guide member 116 is fixed to the inner wall surface of the body portion 110 whose outer side is the opening forming surface 150. The other end side of the second guiding member 116 is arranged so as to be inclined and extended so as to be aligned with the tip of the first guiding member 12.

In the first embodiment, the first guide member 12 and the second guide member 116 configured as described above are provided inside the vacuum cleaner housing 100, and the hole portion (porous structure portion 11) of the enclosure 10 is provided. ) Is an example of a guiding member that guides the airflow discharged from the above-mentioned opening to the above-mentioned opening, that is, the second exhaust port 142.

A filter 115 is provided inside the vacuum cleaner housing 100. The filter 115 is arranged at a position on the way from the hole portion (porous structure portion 11) of the enclosure 10 to the above-mentioned opening, that is, the second exhaust port 142. Here, the filter 115 is arranged immediately behind the second exhaust port 142 inside the vacuum cleaner housing 100. The filter 115 is made of a nonflammable material. Further, the opening of the filter 115 is smaller than the size of each hole in the hole portion (porous structure portion 11) of the enclosure 10.

In the vacuum cleaner 1 configured as described above, even if an abnormality occurs in the secondary battery 113, the devices around the secondary battery 113 housed in the vacuum cleaner housing 100 due to this abnormality. The occurrence of damage to the like can be suppressed by the enclosure 10 surrounding the secondary battery 113.

Further, even when the pressure inside the enclosure 10 rises momentarily due to the abnormal occurrence of the secondary battery 113, the inside of the enclosure 10 is passed through the porous structure portion 11 which is a hole formed in the enclosure 10. Pressure can be released to the outside of the enclosure 10. Therefore, the pressure in the enclosure 10 can be quickly reduced without breaking the enclosure 10.

At this time, a high-speed air flow is ejected from the porous structure portion 11 of the enclosure 10. As described above, the porous structure portion 11 of the enclosure 10 communicates with the inside of the vacuum cleaner housing 100. The internal space of the vacuum cleaner housing 100 leading to the porous structure portion 11 communicates with the outside of the vacuum cleaner housing 100 via the second exhaust port 142. Therefore, as shown by the arrow D in FIG. 4, the airflow ejected from the porous structure portion 11 of the enclosure 10 is passed through the inside of the vacuum cleaner housing 100 and from the second exhaust port 142 to the outside of the vacuum cleaner housing 100. Can be discharged to.

Here, as described above, the opening forming surface 150 of the vacuum cleaner housing 100 in which the second exhaust port 142 is arranged and the surface of the enclosure 10 in which the porous structure portion 11 is arranged are not opposed to each other. Therefore, the high-speed airflow ejected from the porous structure portion 11 does not eject from the second exhaust port 142 in a linear path. The airflow ejected from the porous structure portion 11 is discharged to the outside of the vacuum cleaner housing 100 from the second exhaust port 142 through a curved path as shown by an arrow D in FIG.

In this way, by preventing the opening forming surface 150 on which the second exhaust port 142 is arranged and the surface of the enclosure 10 on which the porous structure portion 11 is arranged from facing each other, the porous structure portion 11 to the second The path to the exhaust port 142 can be curved rather than straight. Therefore, even if fine debris is generated inside the enclosure 10, the debris that has passed through the porous structure portion 11 jumps out of the vacuum cleaner housing 100 from the second exhaust port 142. Can be suppressed.

Further, even if a light emission phenomenon occurs inside the enclosure 10, the light inside the enclosure 10 passes directly from the porous structure portion 11 through the second exhaust port 142 to the outside of the vacuum cleaner housing 100. You can prevent it from appearing in. Therefore, it is possible to prevent the light inside the enclosure 10 from being directly seen from the outside of the vacuum cleaner housing 100 through the second exhaust port 142.

The surface of the enclosure 10 on which the porous structure portion 11 is provided may be the surface on the upstream side of the above-mentioned air passage. By doing so, the airflow in the air passage can be introduced from the porous structure portion 11 to the inside of the enclosure 10. Therefore, the secondary battery 113 in the enclosure 10 can be directly blown with airflow to cool the secondary battery 113 more effectively. Further, by providing the perforated structure portion 11 in the enclosure 10, it is possible to reduce the weight of the enclosure 10.

As described above, the opening forming surface 150 on which the second exhaust port 142 is formed is a surface facing the front side when the vacuum cleaner 1 is in the above-mentioned usage state. When a standing user holds the handle 130 in his hand and puts the vacuum cleaner 1 in the above-mentioned usage state, as shown in FIG. 1, the opening forming surface 150 having the second exhaust port 142 is obliquely forward and upward. Turn to. Here, the handle portion 130 is provided on a surface different from the opening forming surface 150 of the vacuum cleaner housing 100. Then, the user holding the handle portion 130 in his / her hand operates the vacuum cleaner housing 100 so that the vacuum cleaner housing 100 comes forward from the side of the user. Therefore, the opening forming surface 150 faces a direction different from that of the user who supports the vacuum cleaner housing 100 in the used state. Therefore, the airflow discharged from the second exhaust port 142 formed on the opening forming surface 150 also has a direction different from that of the user. That is, it is possible to prevent the airflow discharged from the second exhaust port 142 from hitting the user.

Inside the vacuum cleaner housing 100, the first guiding member 12 and the second guiding member 116 are used as guiding members for guiding the airflow discharged from the porous structure portion 11 of the enclosure 10 to the second exhaust port 142. Is provided. Therefore, the airflow ejected from the porous structure portion 11 can be guided to the second exhaust port 142 by the guiding member and smoothly discharged to the outside of the vacuum cleaner housing 100.

In the configuration example described in the first embodiment, not only the second exhaust port 142 but also the first exhaust port 141 is formed in the vacuum cleaner housing 100. Since both the first exhaust port 141 and the second exhaust port 142 communicate with the air passage inside the vacuum cleaner housing 100, the first exhaust port 141 also has a porous structure of the enclosure 10 through this air passage. It leads to part 11. By providing the guiding member as described above, the airflow ejected from the porous structure portion 11 is guided only to the second exhaust port 142, and the airflow ejected from the porous structure portion 11 is discharged from the first exhaust port 141. It can be prevented from being discharged. As described above, the exhaust from the second exhaust port 142 arranged on the opening forming surface 150 is difficult to hit the user. Therefore, by inducing the airflow ejected from the porous structure portion 11 to the second exhaust port 142 instead of the first exhaust port 141 by the above-mentioned induction member, the airflow ejected from the porous structure portion 11 hits the user. This airflow can be discharged to the outside of the vacuum cleaner housing 100 while suppressing the above.

As described above, the filter 115 is provided at a position in the middle of the enclosure 10 from the porous structure portion 11 to the second exhaust port 142. The opening of the filter 115 is smaller than the size of each hole of the porous structure portion 11. Therefore, even if the debris is so fine that it can pass through the porous structure portion 11, it can be captured by the filter 115 and the debris can be prevented from being discharged to the outside from the second exhaust port 142. Further, the filter 115 is made of a nonflammable material. Therefore, even if the debris heated to a high temperature comes into contact with the filter 115, the filter 115 does not burn.

The size of each hole in the hole portion (porous structure portion 11) of the enclosure 10 is preferably set to be equal to or less than the flame extinguishing distance. Specifically, for example, each hole of the porous structure portion 11 is set to φ3 mm or less. By doing so, even if an ignition phenomenon occurs inside the enclosure 10, it is possible to prevent the flame from coming out of the enclosure 10 from the porous structure portion 11.

As described above, the enclosure 10 has an outer shape that matches the shape of the battery compartment 112. In the configuration examples described so far, the cross-sectional shape of the battery compartment 112 is a simple rectangle. On the other hand, in another example shown in FIG. 5, the cross-sectional shape of the battery compartment 112 is a hexagon (concave hexagon) in which a part is recessed according to the shape of the vacuum cleaner housing 100. The outer shape of the enclosure 10 is also a concave hexagon that matches the shape of the battery compartment 112. By matching the outer shape of the enclosure 10 to the shape of the battery compartment 112 in this way, the space inside the vacuum cleaner housing 100 can be effectively utilized, and the vacuum cleaner housing 100 can be downsized. It is possible to do.

Embodiment 2.
FIG. 6 is a cross-sectional view schematically showing the overall configuration of the vacuum cleaner according to the second embodiment of the present invention.

In the second embodiment described here, in the configuration of the first embodiment described above, not only the secondary battery 113 but also the substrate 114 is inserted inside the enclosure 10. Hereinafter, the vacuum cleaner according to the second embodiment will be described with reference to the case where the vacuum cleaner according to the second embodiment is based on the configuration of the first embodiment, focusing on the differences from the first embodiment.

In the vacuum cleaner according to the second embodiment of the present invention, as shown in FIG. 6, the substrate 114 is arranged inside the enclosure 10. Therefore, both the secondary battery 113 and the substrate 114 are arranged inside the enclosure 10. As described in the first embodiment, the substrate 114 is equipped with a circuit that controls charging and discharging of the secondary battery 113. Other configurations are the same as those in the first embodiment, and the description thereof will be omitted here.

The vacuum cleaner 1 configured as described above can also achieve the same effect as that of the first embodiment. Further, when an abnormality occurs in the substrate 114, the enclosure 10 can prevent the equipment around the substrate 114 housed in the vacuum cleaner housing 100 from being damaged by the abnormality. Further, since one enclosure 10 can handle abnormalities of both the secondary battery 113 and the substrate 114, the manufacturing cost can be kept low.

1 Vacuum cleaner 10 Enclosure 11 Porous structure part 12 First guide member 100 Vacuum cleaner housing 110 Body part 111 Electric blower 112 Battery compartment 113 Secondary battery 114 Substrate 115 Filter 116 Second guide member 120 Pipe part 121 Suction port 130 Handle section 141 First exhaust port 142 Second exhaust port 150 Opening forming surface 200 Dust collecting section

Claims (9)

A vacuum cleaner housing with a secondary battery inside,
An enclosure which is arranged inside the vacuum cleaner housing and is provided so as to surround the periphery of the secondary battery is provided.
The enclosure comprises a hole formed with a hole communicating with the inside and the outside of the enclosure.
The vacuum cleaner housing
A first opening is formed to communicate the inside of the vacuum cleaner housing leading to the hole and the outside of the vacuum cleaner housing, and the user holds the vacuum cleaner housing by hand to support the vacuum cleaner housing in a used state. A first opening forming surface provided with a handle portion for
A second opening that communicates with the inside of the vacuum cleaner housing leading to the hole and the outside of the vacuum cleaner housing is formed, and a second opening forming surface different from the first opening forming surface is formed. Prepare,
The holes are arranged on the surface of the enclosure that does not face either the first opening forming surface or the second opening forming surface .
An electric vacuum cleaner further provided with a guide member provided inside the vacuum cleaner housing and guiding the airflow discharged from the hole to the second opening. Inside the vacuum cleaner housing, an air passage for the airflow that has passed through the dust collecting portion is formed.
The secondary battery and the enclosure are arranged in the air passage and
The vacuum cleaner according to claim 1, wherein the first opening and the second opening are exhaust ports of the air passage. Before Stories second opening forming surface, the vacuum cleaner according to claim 1 or claim 2 in the used state is a surface facing diagonally forward and upward. Further, a filter provided in the middle of the inside of the vacuum cleaner housing from the hole to the second opening is provided.
The vacuum cleaner according to any one of claims 1 to 3 , wherein the opening of the filter is smaller than the size of the hole in the hole. The vacuum cleaner according to claim 4 , wherein the filter is made of a nonflammable material. The vacuum cleaner according to any one of claims 1 to 5 , wherein the hole is a porous structure in which a plurality of holes are formed. A substrate provided with a circuit for controlling charging and discharging of the secondary battery is further provided.
The vacuum cleaner according to any one of claims 1 to 6 , wherein the substrate is arranged inside the enclosure. A battery chamber for accommodating the secondary battery is formed inside the vacuum cleaner housing.
The vacuum cleaner according to any one of claims 1 to 7 , wherein the enclosure has an outer shape that matches the shape of the battery compartment. The vacuum cleaner according to any one of claims 1 to 8 , wherein the hole size of the hole is equal to or less than the flame extinguishing distance.

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