JP6437897B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner that sucks and removes dust scattered on a surface to be cleaned such as a floor.

  There are various types of vacuum cleaners such as a stick type and a canister type. Regardless of the stick type, canister type, or the like, a vacuum cleaner generally generates a suction force inside a vacuum cleaner body (for example, a suction unit) by rotating a fan with a motor. In such a vacuum cleaner, the suction force is reduced due to accumulation of dust inside the main body and contamination of the filter. For this reason, it is necessary for such a vacuum cleaner to clean the inside of the main body and the filter at an appropriate timing in order to maintain the suction force. Patent Document 1 discloses that the cleaning timing inside the cleaner body is determined by the current value of the supply current supplied to the motor.

  However, when a secondary battery is used as a drive source such as a motor, it is necessary to reduce the size of the motor. Then, since the current value of the current supplied to the motor becomes small, it becomes difficult to detect this current value with high accuracy. Thereby, a vacuum cleaner becomes difficult to exhibit a desired function, and there exists a problem that operativity falls.

Japanese Patent No. 497468

  An object of the present invention is to provide a vacuum cleaner capable of improving the operability by determining the cleaning time of the suction portion with high accuracy.

In order to solve the above problems, a vacuum cleaner according to an aspect of the present invention includes a secondary battery, a motor that is rotated by electric power supplied from the secondary battery, a suction fan that is rotated by the motor, and the suction device. An intake port for sucking air from the outside by a fan; an exhaust port for discharging air sucked from the intake port; a pressure detection unit for detecting pressure in a ventilation path from the intake port to the exhaust port; and the motor a pressure detection value corresponding to the detected pressure by the pressure detection unit during the rotation of, based on the difference between the pressure detection value corresponding to the pressure detected by the pressure detecting section during the stop of the motor, the internal A cleaning necessity determining unit that determines whether or not cleaning is necessary, and a notifying unit that notifies that the internal cleaning is necessary when the internal cleaning is determined to be necessary by the cleaning necessity determining unit. And features.
In order to solve the above problems, a vacuum cleaner according to another aspect of the present invention includes a secondary battery, a motor that is rotated by electric power supplied from the secondary battery, and a suction fan that is rotated by the motor. An intake port for sucking air from the outside by the suction fan, an exhaust port for discharging air sucked from the intake port, and a pressure detection unit for detecting a pressure in a ventilation path from the intake port to the exhaust port; The pressure detection value corresponding to the pressure detected by the pressure detection unit during the initial operation after the operation of starting the rotation of the motor and before the motor starts to rotate, and the stable operation when the rotation of the motor is stable The internal cleaning is performed by a cleaning necessity determining unit that determines whether internal cleaning is necessary based on a difference from a pressure detection value corresponding to the pressure detected by the pressure detecting unit, and the cleaning necessity determining unit. If it is determined that necessity, characterized in that it comprises a notification unit for notifying that the internal cleaning is required.

According to each aspect of the present invention, it is possible to determine the cleaning time of the suction portion with high accuracy and improve operability.

It is a perspective view which shows the external appearance of the cleaner by one Embodiment of this invention. It is an orthographic projection figure which shows the external appearance of the cleaner by one Embodiment of this invention. It is a disassembled perspective view which shows the external appearance of the cleaner by one Embodiment of this invention. It is a disassembled perspective view of the attraction | suction part with which the cleaner by one Embodiment of this invention was equipped. It is a disassembled perspective view which shows schematic structure of the partition plate and sensor board | substrate of the suction part with which the cleaner by one Embodiment of this invention was equipped. It is a perspective view which shows the external appearance and internal structure of the dust collecting part with which the cleaner by one Embodiment of this invention was equipped. It is a disassembled perspective view of the ventilation means with which the cleaner by one Embodiment of this invention was equipped. It is a disassembled front view of the ventilation means with which the cleaner by one Embodiment of this invention was equipped. It is a disassembled perspective view of the axial part with which the cleaner by one Embodiment of this invention was equipped. It is a disassembled perspective view which expands and shows the large diameter part of the axial part with which the cleaner by one Embodiment of this invention was equipped, the holding part, and the axial side operation part vicinity. It is a figure which shows typically the internal structure of the battery accommodating part with which the cleaner by one Embodiment of this invention was equipped. It is sectional drawing which cut | disconnected the vacuum cleaner by one Embodiment of this invention by the AA line shown in FIG. It is sectional drawing which cut | disconnected the vacuum cleaner by one Embodiment of this invention by the BB line shown in FIG. It is sectional drawing which cut | disconnected the cleaner by one Embodiment of this invention by the CC line | wire shown in FIG. It is a block diagram of the structure relevant to discrimination | determination of the necessity of the internal cleaning of the cleaner by one Embodiment of this invention. It is a flowchart which shows the flow of the determination method of the necessity of the internal cleaning of the cleaner by one Embodiment of this invention. It is a principal part sectional drawing which cut | disconnected the cleaner by one Embodiment of this invention by CC line shown in FIG. 2, Comprising: It is a figure which shows the flow of air. It is the principal part sectional view which cut | disconnected the cleaner by one Embodiment of this invention by the AA line shown in FIG. 2, Comprising: It is a figure which shows the flow of air. It is a figure explaining the vacuum cleaner by one Embodiment of this invention, Comprising: It is a figure which shows typically the ventilation path near a pressure detection part.

  Hereinafter, the vacuum cleaner by one Embodiment of this invention is demonstrated using FIGS. 1-19. The vacuum cleaner 1 according to this embodiment is a vacuum cleaner that sucks and removes dust scattered on a surface to be cleaned such as a floor. The vacuum cleaner 1 is a stick type (vertical type) vacuum cleaner. Moreover, the vacuum cleaner 1 is equipped with the secondary battery inside. For this reason, the vacuum cleaner 1 is a so-called cordless type vacuum cleaner that can operate using the secondary battery as a power source even when the power cord is not connected to a power outlet to which commercial power is supplied.

[Overall appearance of vacuum cleaner]
First, the overall appearance configuration of the vacuum cleaner 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. Hereinafter, the “front” is a surface on the side where the dust collecting unit 32 (details will be described later) is provided in the self-supporting cleaner 1. Further, hereinafter, the “rear surface” is a surface opposite to the “front surface”. Further, hereinafter, the “right side surface” is a surface on the right hand side as viewed from a viewer facing the front side of the self-supporting vacuum cleaner 1. Further, hereinafter, the “left side surface” is a surface on the left hand side as viewed from the viewer facing the front side of the self-supporting cleaner 1. Further, hereinafter, the “plane” (hereinafter sometimes referred to as “upper surface”) is a surface viewed from above in the vertical direction in a state where the self-supporting vacuum cleaner 1 is installed on a horizontal floor. Further, hereinafter, the “bottom surface” is a surface viewed from below in the vertical direction when the self-supporting vacuum cleaner 1 is installed on a horizontal floor.

  Fig.1 (a) is the perspective view which looked at the cleaner 1 of the self-supporting state from diagonally right front, and FIG.1 (b) is the perspective which looked at the vacuum cleaner 1 of self-supported state from back diagonally upward left. FIG. FIG. 2 is an orthographic view of the cleaner 1 in a self-supporting state, and a top view of the cleaner 1 is shown in the upper part of FIG. 2, and the left part of the cleaner 1 from the left is shown in the middle part of FIG. 2. The figure, the front view, the right side view, and the rear view are shown in this order, and the bottom view of the cleaner 1 is shown in the lower part of FIG. FIG. 3A is an exploded perspective view of the vacuum cleaner 1 as viewed from diagonally upward on the front right side, and FIG. 3B is a suction unit 3 provided in the vacuum cleaner 1 with the dust collecting unit 32 removed. It is the disassembled perspective view which looked at the state which looked from the front diagonally downward.

  As shown in FIGS. 1 and 2, the cleaner 1 includes a suction unit 3 having a suction fan (not shown in FIGS. 1 and 2) inside, and an intake port 33 a (FIG. 1) that sucks air from the outside by the suction fan. 2 and (not shown in FIG. 2, refer to FIG. 3B), the suction nozzle 7 is detachably connected, and the shaft portion 5 extends from the suction portion 3 to the upper surface side. Although details will be described later, a part of the shaft part 5 is detachably attached to the other part (residual part), and the remaining part of the shaft part 5 is fixed to the suction part 3. Is provided.

  The suction unit 3 generates an air flow inside when the suction fan rotates, and discharges air sucked from the suction nozzle 7 connected to the suction port 33a from the first exhaust port group 6a and the second exhaust port group 6b. It is supposed to be. The suction unit 3 also sucks dust scattered on the surface to be cleaned such as the floor when sucking air from the suction nozzle 7, collects the sucked dust in the dust collecting unit 32, and collects the first exhaust port group 6a and the second exhaust port group 6b. Do not exhaust from.

  The suction part 3 has an outer surface that is entirely curved and has an oval shape. The shaft portion 5 has a cylindrical shape. The diameter of the outer surface of the shaft portion 5 on the side connected to the suction portion 3 is set to be approximately the same as the diameter of the outer surface of the tip portion on the upper surface side of the suction portion 3. For this reason, when the shaft portion 5 is connected to the suction portion 3, there is no step between the shaft portion 5 and the suction portion 3. As a result, a sense of unity between the shaft portion 5 and the suction portion 3 is generated.

  The suction part 3 has a housing 31 provided from the back to a part of the left and right side surfaces and the upper front part, and a dust collecting part 32 provided from the front lower part to a part of the lower left and right side parts. (Refer to the middle row in FIGS. 1 and 2). The dust collection part 32 is a part where dust sucked from the suction nozzle 7 is collected. The dust collector 32 is configured to be detachable from the housing 31. The suction part 3 has a suction side operation part 301 and a notification area 302 for notifying predetermined information above the dust collection part 32 and on the front side (see front views in FIGS. 1 and 2). . When part of the shaft portion 5 (the first shaft member 51a and the second shaft member 51b (details will be described later)) is removed from the suction portion 3 and the cleaner 1 is used as a handy cleaner, the suction-side operation portion 301 is used as an operation unit for operating the operation start and operation end of the cleaner 1. The notification area 302 emits light to the user of the vacuum cleaner 1 such as the strength of the suction power of the vacuum cleaner 1 as the predetermined information, the remaining amount of charge of the secondary battery, and the necessity of internal cleaning of the dust collector 32 and the like. It is an area | region notified by. The suction side operation unit 301 is provided on the shaft unit 5 side with respect to the notification region 302.

  The casing 31 includes a first exhaust port group 6a formed from a part on the right side of the back surface to a part of the right side surface, and a first exhaust port group 6a formed on a part of the rear surface on the left side to a part of the left side surface. 2 exhaust port group 6a (see left side view, right side view, and rear view in FIG. 2). The first exhaust port group 6a and the second exhaust port group 6b are respectively provided for exhausting air sucked from the intake port 33a. The first exhaust port group 6 a has a plurality of first exhaust ports 601 a formed through the housing 31. The second exhaust port group 6b has a plurality of second exhaust ports 601b formed through the housing 31.

  The housing 31 has a pair of charging terminals 304 provided obliquely below the first exhaust port group 6a and the second exhaust port group 6b (see the rear view in FIG. 2). The charging terminal 304 is used for charging a secondary battery (not shown in FIGS. 1 and 2, details will be described later with reference to FIG. 11) provided in the cleaner 1. The vacuum cleaner 1 is installed in a charging device (not shown) when charging a secondary battery. The charging terminal 304 is connected to a voltage application terminal provided in the charging device when the cleaner 1 is installed in the charging device. Thereby, the secondary battery is charged.

  The shaft portion 5 has a large-diameter portion 502 having a larger diameter than other regions at the tip on the upper surface side. The shaft portion 5 has a grip portion 503 provided closer to the suction portion 3 than the large diameter portion 502. Further, the shaft portion 5 includes a shaft-side operation portion 501 provided on the opposite side of the large diameter portion 502 with the grip portion 503 interposed therebetween. The shaft side operation part 501 is provided closer to the suction part 3 than the grip part 503. The shaft side operation part 501 is provided closer to the tip part where the larger diameter part 502 is provided than the suction part 3. The grip portion 503 is provided between the large diameter portion 502 and the shaft side operation portion 501.

  The large-diameter portion 502 is formed in a tapered shape whose diameter increases as it approaches the tip on the upper surface side. The grip part 503 is a part that the user of the cleaner 1 grips. The grip portion 503 and the large diameter portion 502 are integrally formed. The shaft side operation unit 501 is used as an operation unit for operating the operation start and operation end of the cleaner 1 with the shaft unit 5 connected to the suction unit 3. When the user of the vacuum cleaner 1 grips the grip portion 503, the little finger is hooked on the large diameter portion 502, and the thumb is disposed on the shaft side operation portion 501. For this reason, the user can start and end the operation of the vacuum cleaner 1 by moving the thumb without re-gripping the grip portion 503, or change the setting of the strength of the suction force. Furthermore, since the little finger is caught by the large diameter part 502, when the user of the vacuum cleaner 1 is using the vacuum cleaner 1, the shaft part 5 slides down from the user's hand from the tip on the upper surface side. Is prevented. Thus, the operability of the vacuum cleaner 1 is improved.

  As shown in FIG. 3A, the vacuum cleaner 1 can remove the shaft portion 5 and the suction nozzle 7 from the suction portion 3. Further, the vacuum cleaner 1 can remove the dust collecting part 32 from the housing 31 of the suction part 3. As shown in FIG. 3B, when the dust collecting part 32 is removed from the housing 31, a part of the air blowing means 4 accommodated in the internal space of the housing 31 is exposed above the arrangement area of the dust collecting part 32. In addition, an opening 38 a communicating with the air inlet 33 a is exposed on the back side of the arrangement area of the dust collecting portion 32.

  As shown in FIG. 3, the suction nozzle 7 includes a nozzle body 71 disposed on the floor during cleaning, a joint portion 72 connected to the suction portion 3, and the joint portion 72 with respect to the nozzle body 71 in a predetermined rotation range. And a joint rotating portion 73 that is rotatably mounted. Inside the nozzle body 71, a suction space 710 is formed with the floor surface side as an open end and sucking air from the outside (see the bottom view in FIG. 2). Unlike the nozzle part of a general vacuum cleaner, the suction nozzle 7 does not include a rotating brush in the suction space 710 of the nozzle body 71. The vacuum cleaner 1 according to the present embodiment can generate a spiral airflow with the longitudinal direction of the suction space 710 as a rotation axis in the suction space 710, and can sweep out dust scattered on the floor by the generated airflow. The joint portion 72 has a cylindrical shape. An end portion of the joint portion 72 that is not connected to the joint rotation portion 73 is inserted into the joint connection portion 33 via the intake port 33a of the suction portion 3. Thereby, the suction nozzle 7 is connected to the suction part 3. The inside of the joint rotating part 73 is hollow. For this reason, the internal space of the joint part 72 is communicated with the suction space 710 via the joint rotating part 73.

  The joint rotating part 73 is connected to the rear part of the nozzle body 71 so as to protrude rearward of the nozzle body 71. The joint rotating part 73 is in a state where the nozzle body 71 is placed on the surface to be cleaned, from the direction orthogonal to the surface to be cleaned to the side where the nozzle body 71 is not provided and parallel to the surface to be cleaned. The joint portion 72 can be rotated with respect to the nozzle body 71 within a range of about 90 °. Furthermore, the joint rotating part 73 is parallel to the longitudinal direction of the surface to be cleaned and the suction space 710 with the nozzle body 71 placed on the surface to be cleaned, and the end of the joint rotating part 73 is directed to the left side. The joint portion 72 can be rotated with respect to the nozzle body 71 within a range of about 180 ° from the direction to the direction toward the right side. The suction part 3 has a diameter larger than that of the joint part 72. Further, the suction part 3 has a charging terminal 304 that protrudes to the back side from the joint part 72. When the suction part 3 attached to the suction nozzle 7 is rotated via the joint part 72, the suction part 3 comes into contact with the surface to be cleaned before the joint part 72 and restricts the rotation range of the joint part 72. . For this reason, the suction part 3 attached to the suction nozzle 7 via the joint part 72 can rotate with respect to the suction nozzle 7 in a range slightly narrower than the range in which the joint part 72 can rotate.

  The vacuum cleaner 1 can make the suction part 3 stand by itself with respect to the suction nozzle 7. In other words, the vacuum cleaner 1 can be held in a state in which the suction unit 3 stands on the suction nozzle 7. The vacuum cleaner 1 can rotate the suction part 3 with respect to the suction nozzle 7. For this reason, the vacuum cleaner 1 can make the suction part 3 face down with respect to the suction nozzle 7, that is, the suction part 3 can be made substantially parallel to the surface to be cleaned. As shown in FIG. 3, the vacuum cleaner 1 has a hoisting mechanism 2 that arranges the sucking portion 3 with respect to the suction nozzle 7 so as to be hoistable. The hoisting mechanism 2 is provided at a site where the suction nozzle 7 and the suction part 3 come into contact with each other when the suction part 3 is arranged in an upright state with respect to the suction nozzle 7.

  In the present embodiment, the undulation mechanism 2 has an upper surface of the suction nozzle 7 (that is, a surface of the nozzle main body 71 that contacts the suction unit 3) when the suction unit 3 is placed upright with respect to the suction nozzle 7. The lower surface of the suction unit 3 (that is, the surface of the casing 31 that contacts the nozzle main body 71) is in contact with the upper surface and the lower surface is engaged. Has been. The hoisting mechanism 2 is a mechanism for allowing the vacuum cleaner 1 to be hoisted freely, and a part of the hoisting mechanism 2 constitutes an engaging mechanism for holding the suction portion 3 in an upright state. The engagement mechanism constituting the undulation mechanism 2 includes an engagement portion 22 (see FIG. 3A) provided on the surface of the casing 31 that contacts the nozzle body 71 and a nozzle body 71 that contacts the suction portion 3. It has the engaged part 21 (refer FIG.3 (b)) provided in the surface and engaged with the engaging part 22. FIG. The engaged portion 21 is formed in a substantially rectangular convex shape that extends downward from the lower center of the lower surface of the suction portion 3 when the suction portion 3 stands upright with respect to the nozzle body 71. Has been. The engaging portion 22 is formed in a substantially rectangular concave shape whose upper and rear sides are opened at the upper end position corresponding to the engaged portion 21.

  The width of the engaged portion 21 when the suction portion 3 is viewed from the front side is slightly smaller than the width of the engagement portion 22 when the suction nozzle 7 is viewed from the front side. Further, the height of the engaged portion 21 from the outer surface of the housing 31 is slightly smaller than the depth of the engaging portion 22. Furthermore, the engaging part 22 has a concave shape that is opened on the side where the suction part 3 falls down in a state where the suction part 3 is turned down. For this reason, when the suction portion 3 is brought into a standing state from the state where the suction nozzle 7 is inclined to the rear side, the engaged portion 21 is engaged in the groove of the engaging portion 22. Can be kept upright. The suction port 33a is arranged so as to be biased from the center of the lower surface of the suction portion 3 (the surface of the housing 31 that contacts the nozzle body 71) to the side where the suction portion 3 falls down. Thereby, the suction part 3 becomes easy to balance in the state where it stood up with respect to the suction nozzle 7.

  When a concave engaging portion is formed on the suction portion 3 side and a convex engaged portion is formed on the suction nozzle 7 side, the engaging portion has a shape in which the front side is opened. . Thereby, when the suction part 3 is brought into the upright state from the state in which it is inclined with respect to the suction nozzle 7, the engaged part of the suction head is engaged in the groove of the engaging part of the suction part 3. be able to.

[Internal configuration of vacuum cleaner 1]
Next, the internal configuration of the vacuum cleaner 1 will be described using FIGS. 4 to 11 with reference to FIGS. 1 to 3. FIG. 4 is an exploded perspective view of the suction unit 3 as viewed from the diagonally upper front side. In FIG. 4, the shaft portion 5 is also illustrated for easy understanding.

  As illustrated in FIG. 4, the housing 31 of the suction unit 3 includes a first housing member 31 a disposed on the front side and a second housing member 31 b disposed on the back side. The first housing member 31a is disposed on the upper surface side of the second housing member 31b so as to face almost half of the region. The air blowing means 4 and the control board 34 are disposed between the first housing member 31a and the second housing member 31b. The air blowing means 4 is disposed substantially at the center between the first housing member 31a and the second housing member 31b. The control board 34 is disposed between the first housing member 31a and the second housing member 31b and closer to the first housing member 31a.

  The control board 34 is provided with an operation / stop switch 34a. When the control board 34 is arranged in the internal space of the casing 31, the elastic member 301b formed integrally with the first casing member 31a is elastically formed from the outside of the casing 31 at the corresponding position of the operation / stop switch 34a. A button portion 301a provided on the member 301b is disposed. In FIG. 4, the button portion 301a is illustrated on the back side of the first housing member 31a and in front of the operation / stop switch 34a. The suction side operation unit 301 is configured by the button unit 301a, the elastic member 301b, and the operation / stop switch 34a. The button part 301 a is a member formed by a membrane sheet, and is pressed when the user of the cleaner 1 operates the cleaner 1. The elastic member 301b has a thin circular shape, and a part of the outer periphery is integrally formed with the first housing member 31a. The elastic member 301b is configured to elastically deform and retract toward the control board 34 when the user of the cleaner 1 presses the button portion 301a. Further, the elastic member 301b returns to its original position when the user of the cleaner 1 releases the pressing operation of the button part 301a. The operation / stop switch 34a is a push button type switch. The operation / stop switch 34a is pushed down when the elastic member 301b moves backward to the control board 34 side. Each time the operation / stop switch 34a is pressed down, the cleaner 1 can be operated, for example, “automatic operation → standard operation → strong operation → stop → automatic operation → standard operation → strong operation → stop →... it can. Note that the strong operation is an operation in which the suction force of the cleaner 1 is stronger than the standard operation. The automatic operation is an operation in which the standard operation and the strong operation are automatically switched according to the amount of dust scattered on the surface to be cleaned.

  The control board 34 is provided with a plurality of light emitting elements 34b. A first window 302a, a second window 302b, and a third window 302c are provided so as to cover the light emitting portions of the plurality of light emitting elements 34b. When the control board 34 is disposed in the internal space of the housing 31, the first opening 302d is disposed at a corresponding position of the first window 302a, and the second opening is disposed at a corresponding position of the second window 302b. The portion 302e is disposed, and a third opening 302f is disposed at a corresponding position of the third window portion 302c. For this reason, the 1st window part 302a, the 2nd window part 302b, and the 3rd window part 302c are exposed to the exterior of the 1st housing member 31a. The plurality of light emitting elements 34b, the first window 302a, the second window 302b, and the third window 302c, and the first window 302a, the second window 30b, and the third window 302c constitute the notification area 302. The

  The 1st window part 302a, the 2nd window part 302b, and the 3rd window part 302c are formed with the semi-transparent member, for example, and the user of the cleaner 1 can recognize that the light emitting element 34b is emitting light. It can transmit light. In the first window portion 302a, a plurality of light emitting elements 34b having different emission colors are arranged correspondingly. The 1st window part 302a alert | reports the operation state (an automatic operation state, a normal operation state, and a strong operation state) of the cleaner 1 with respect to the difference in the luminescent color which permeate | transmits. In addition, the first window 302a indicates to the user that the vacuum cleaner 1 is in a stopped state by not transmitting light because none of the plurality of light emitting elements 34b arranged in association with each other emits light. To inform.

  One light emitting element 34b is arranged corresponding to the second window 302b. The second window 302b notifies the user of the remaining amount of charge of the secondary battery according to the difference in the light emission state (for example, the lighting state or the blinking state) of the light emitting element 34b arranged in association with each other.

  One light emitting element 34b is arranged corresponding to the third window 302c. The third window 302c notifies the determination result of whether or not the internal cleaning of the cleaner 1 is necessary based on the light emission state (for example, the lighting state and the non-lighting state) of the light emitting element 34b arranged in association (details will be described later).

  The first window 302a, the second window 302b, and the third window 302c are exposed to the outside of the first housing member 31a from the first opening 302d, the second opening 302e, and the third opening 302f, respectively. ing. For this reason, the user of the cleaner 1 can recognize the predetermined state of the cleaner 1 by confirming the light emission states of the first window portion 302a, the second window portion 302b, and the third window portion 302c.

  A partition plate 35 is provided on the second housing member 31b. The partition plate 35 is attached to the second housing member 31b via the upstream packing 39, for example, by being screwed. The partition plate 35 is configured to partition the intake port 33a side and the dust collecting portion 32 (not shown in FIG. 4) side. Here, the upstream side and the downstream side, which will be described later, indicate the relative positional relationship of the air flow inside the cleaner 1. The upstream side is the side from which air flows in for each region, and the downstream side is the side from which air flows out for each region. Therefore, in the cleaner 1, the most upstream side is the suction nozzle 7 side, and the most downstream side is the first exhaust port group 6a and the second exhaust port group 6b side. Further, for example, in the region from the suction space 710 to the intake port 33a, the intake space 710 is on the upstream side because air is inflow side, and the intake port 33a is on the downstream side because air is out side. . Further, for example, in the region from the air inlet 33a to the dust collecting part 32, the air inlet 33a is on the upstream side because it is the air inflow side, and the dust collecting part 32 is on the downstream side because it is the air outflow side. Become.

  Here, the pair of sensor boards 36 attached to the partition plate 35 and the partition plate 35 will be described with reference to FIG. FIG. 5A is an exploded perspective view of the partition plate 35 and the sensor substrate 36 as viewed from the upper right side of the rear surface, and FIG. 5B is a view of the partition plate 35 and the sensor substrate 36 as viewed from the upper left side of the rear surface. It is a disassembled perspective view.

  As shown in FIG. 5, the partition plate 35 protrudes from the counter plate portion 351 facing the dust collection portion 32 and the back surface of the counter plate portion 351 (the surface not facing the dust collection portion 32) toward the back side. And a projecting portion 352 formed in the above manner. An opening 35a is formed in the counter plate portion 351 (see FIG. 4). The protruding portion 352 has a shape that surrounds the right side surface, the upper surface side, and the left side surface and has the bottom surface opened, and is formed in a U-shape that faces downward in a rear view. When the protruding portion 352 is attached to the housing 31, the rear side end of the protruding portion 352 comes into contact with the inner wall surface of the second housing member 31b. Thus, the protruding portion 352 separates the internal space of the housing 31 together with the inner wall surface of the second housing member 31b, and is a part of the ventilation path from the intake port 33a to the first exhaust port group 6a and the second exhaust port group 6b. A part is formed.

  A pair of sensor substrates 36 is attached to the protruding portion 352 of the partition plate 35. The first sensor substrate 36 a is disposed on the left side surface on the left side of the projecting portion 352, and the second sensor substrate 36 b is disposed on the right side surface on the right side of the projecting portion 352. The first sensor board 36a is provided with a pressure detector 360 that detects the pressure in the ventilation path from the inlet 33a to the first exhaust port group 6a and the second exhaust port group 6b. The pressure detector 360 is arranged with a pressure sensor (not shown) for detecting pressure facing the second sensor substrate 36b. The pressure detection unit 360 is attached to an element holding unit 352d provided on the protrusion 352. A through hole (an example of a small hole) 352a is formed at a position corresponding to the location of the pressure sensor when the first sensor substrate 36a is attached to the protruding portion 352. The through hole 352a is formed in a region surrounded by the element holding portion 352d. The pressure detector 360 detects the pressure in the ventilation path between the air inlet 33a and the suction fan 42 (details will be described later) through the through hole 352a. More specifically, the pressure detection unit 360 detects the pressure in the ventilation path from the downstream side of the intake port 33a to the opening 35a of the partition plate 35. The inside of the ventilation path between the suction port 33 a and the suction fan 42 is upstream of the suction fan 42 and is on the suction port side of the suction fan 42.

  The pressure detection unit 360 converts the detected pressure into an analog electrical signal, and transmits the converted electrical signal (hereinafter also referred to as “pressure electrical signal”) to the control board 34. The control board 34 includes a cleaning necessity determining unit (not shown in FIG. 5, which is not shown in detail in FIG. 5) that determines whether the internal cleaning of the cleaner 1 is necessary based on a pressure detection value corresponding to the pressure detected by the pressure detection unit 360. Is described later with reference to FIG. Here, the pressure detection value corresponding to the pressure detected by the pressure detection unit 360 is a digital signal value obtained by analog / digital (A / D) conversion of the electrical pressure signal output from the pressure detection unit 360. is there. Based on the electrical pressure signal output from the pressure detection unit 360, the cleaning necessity determination unit determines whether it is necessary to clean the inside of the cleaner 1, that is, the dust collection unit 32 and the filter 45 (details will be described later). . For example, the light emitting element 34b associated with the third window portion 302c emits light when the cleaning necessity determination unit determines that internal cleaning is necessary, and turns on the third window portion 302c. This notifies the user of the vacuum cleaner 1 that internal cleaning is necessary. As described above, the third window 302c and the light emitting element 34b associated with the third window 302c need to be internally cleaned when it is determined that the internal cleaning is necessary by the cleaning necessity determining unit. It corresponds to a notification unit for notification. In addition, when the cleaning necessity determination unit determines that it is not necessary to clean the inside, the control for causing the light emitting element 34b to emit light is not performed, and the third window 302c remains in a non-lighted state. That is, when the cleaning necessity determination unit determines that the internal cleaning is unnecessary while using the vacuum cleaner 1, the cleaning necessity determination is performed only by looking at the third window 302 c of the cleaner 1. It is not possible to determine whether the section is executing a process for determining whether internal cleaning is necessary. Details of the method for determining the necessity of internal cleaning in the cleaning necessity determination unit will be described later.

  A light emitting element 361 is provided on the first sensor substrate 36a. The second sensor substrate 36 b is provided with a light receiving element 362 at a position facing the light emitting element 361 when the pair of sensor substrates 36 is attached to the protruding portion 352 of the partition plate 35. The light emitting element 261 and the light receiving element 362 constitute a photoelectric sensor. Further, by providing the light emitting element 361 and the pressure detector 360 on the first sensor substrate 36a as a unit, the cost of the pair of sensor substrates 36 can be reduced.

  The light emitting element 361 is attached to an element holding part 352e provided in the protruding part 352. An opening 352b is formed at a position corresponding to the location of the light emitting part of the light emitting element 361 when the first sensor substrate 36a is attached to the protruding part 352. The opening 352b is formed in a region surrounded by the element holding portion 352e. The light emitting part of the light emitting element 361 is exposed in the ventilation path from the downstream side of the air inlet 33a to the opening 38a of the partition plate 35 through the opening 352b.

  The light receiving element 362 is attached to an element holding portion 352f provided in the protruding portion 352. An opening 352c is formed at a position corresponding to the location of the light receiving portion of the light receiving element 362 when the second sensor substrate 36b is attached to the protruding portion 352. The opening 352c is formed in a region surrounded by the element holding portion 352f. The light receiving portion of the light receiving element 362 is exposed in the ventilation path from the downstream side of the air inlet 33a to the opening 38a of the partition plate 35 through the opening 352c. For this reason, the light emitting part of the light emitting element 361 and the light receiving part of the light receiving element 362 are disposed to face each other through the openings 352b and 352c. Accordingly, the light receiving element 362 can receive light emitted from the light emitting element 361.

  When the cleaner 1 is operating, the light emitting element 361 emits light toward the light receiving element. The light emitted from the light emitting element 361 is received by the light receiving element through the ventilation path from the downstream side of the intake port 33a to the opening 38a of the partition plate 35. When dust passes through the ventilation path irradiated with light from the light emitting element 361, the light emitted from the light emitting element 361 is blocked by the dust, and the amount of light received by the light receiving element 362 is reduced. For this reason, the amount of received light received by the light receiving element 362 by the light emitting element 361 varies depending on the amount of dust passing through the ventilation path. The second sensor board 36 b converts the amount of light received by the light receiving element 362 into an electrical signal, and transmits this electrical signal to the control board 34. The control board 34 has a dust amount determination unit (not shown) that determines the amount of dust sucked based on the electrical signal transmitted from the second sensor board 36b. When the vacuum cleaner 1 is operating in the automatic operation state, the blowing means 4 has a high driving capability when the amount of dust sucked is greater than a predetermined value based on the determination result of the dust amount determination unit. Thus, when the amount of dust sucked is less than a predetermined value, the driving ability is controlled to be low.

  Returning to FIG. 4, the downstream packing 38 is disposed so as to surround the opening 35 a of the partition plate 35. In the downstream packing 38, an opening 38a having substantially the same shape as the opening 35a is formed. When the downstream packing 38 is disposed on the partition plate 35, the opening 35a and the opening 38a are disposed so as to overlap each other.

  Here, a schematic configuration of the dust collecting unit 32 will be described with reference to FIG. Fig.6 (a) is the perspective view which looked at the dust collection part 32 from the front right diagonal upper direction. FIG. 6B is a perspective view of the state in which the cone portion 37 is removed from the dust collecting portion 32 as viewed from the upper front diagonally downward. FIG. 6C is a perspective view of the state in which the cone portion 37 is removed from the dust collecting portion 32 as viewed from the upper left obliquely upward.

  As shown in FIG. 6B and FIG. 6C, the dust collection part 32 has an internal space 32b whose upper part is opened. As shown in FIG. 6C, the back side of the dust collecting portion 32 is formed in a shape that follows the front side of the opposing plate portion 351 of the partition plate 35. Further, an opening 32 a is formed on the back side of the dust collecting portion 32. The opening 32 a is formed in substantially the same shape as the opening 35 a of the partition plate 35 and the opening 38 a of the downstream packing 38. The opening 32 a is formed at a position corresponding to the opening 35 a and the opening 38 a when the dust collecting part 32 is attached to the housing 31. For this reason, when the dust collection part 32 is attached to the housing 31, the back side of the dust collection part 32 and the front side of the partition plate 35 are brought into close contact with each other, and the internal space 32b of the dust collection part 32 has an opening 32a, It communicates with the inside of the ventilation path from the downstream side of the intake port 33a to the opening 38a of the partition plate 35 via 28a and 35a. When the dust collection part 32 is attached to the housing 31, the dust collection part 32 and the opposing plate part 351 of the partition plate 35 are pressure-bonded via the downstream packing 38. The partition plate 35 is attached to the second casing member 31b with the upstream packing 39 interposed therebetween. Thereby, since the sealing degree of the ventilation path from the downstream side of the intake port 33a to the internal space 32b of the dust collecting part 32 is improved, the suction efficiency of the suction part 3 is improved.

  As shown to Fig.6 (a), the cone part 37 is arrange | positioned at the internal space 32b of the dust collection part 32 so that attachment or detachment is possible. The cone part 37 is disposed so as to close the opening at the top of the dust collecting part 32. The cone portion 37 includes an outer cone member 307a disposed on the outer side and an inner cone member 307b disposed on the inner side. The inner cone member 307b is inserted into the outer cone member 307a. The inner cone member 307b is inserted into the outer cone member 307a so as to block the upper opening of the outer cone member 307a. An opening 37a is formed in the upper part of the inner cone member 307b. For this reason, when the cone part 37 is inserted into the internal space 32b of the dust collection part 32, the upper part of the dust collection part 32 is opened by the opening part 37a.

  A filter (not shown) is disposed between the outer cone member 307a and the inner cone member 307b. This filter passes the air sucked by the cleaner 1, but hardly passes the sucked dust. The air that has entered the internal space 32b through the opening 32a of the dust collecting part 32 enters the inside of the inner cone member 307b through a filter provided in the cone part 37 while turning around the cone part 37, It flows out of the dust collection part 32 through the opening part 37a. On the other hand, the dust that has entered the internal space 32 b through the opening 32 a of the dust collecting portion 32 collides with a filter provided in the cone portion 37 while turning around the cone portion 37. For this reason, the dust that has entered the internal space 32 b cannot enter the inside of the inner cone member 307 b and adheres to the filter or remains in the internal space 32 b of the dust collecting portion 32.

  Returning to FIG. 4, when the dust collecting part 32 is attached to the housing 31, the blowing means 4 is arranged on the upper surface side of the dust collecting part 32 in a state where the opening 37 a of the inner cone member 307 b is closed. Here, a schematic configuration of the blowing unit 4 will be described with reference to FIGS. 7 and 8. FIG. 7 is an exploded perspective view of the air blowing means 4. FIG. 8 is an exploded front view of the blowing means 4.

  As shown in FIGS. 7 and 8, the air blowing means 4 is a motor that is rotated by electric power supplied from a secondary battery (not shown in FIGS. 7 and 8; details will be described later with reference to FIGS. 9 and 11). 41 and a suction fan 42 rotated by the motor 41. The air blowing means 4 is provided coaxially with the suction fan 42 on the upstream side of the suction fan 42 and guides the air sucked from the air inlet 33a (not shown in FIG. 7) to the center of the suction fan 42. Have Further, the air blowing means 4 is disposed on the upstream side of the air guiding portion 43 and prevents a dust 45 from flowing into the suction fan 42, and a filter mounting member 44 for attaching the filter 45 to the air guiding portion 43. have.

  The suction fan 42 is a centrifugal fan that rotates when the motor 41 rotates and blows out air sucked from the center toward the outer periphery. The suction fan 42 includes a thin disk-shaped first disk member 420 and a second disk member 421 whose central portion is inclined in a curved shape on the side opposite to the side where the first disk member 420 is disposed. The first disk member 420 and the second disk member 421 are arranged to face each other with a predetermined gap. The center of each of the first disk member 420 and the second disk member 421 is opened. The suction fan 42 has a core member 424 provided in an opening formed in the first disk member 420 and the second disk member 421. A through hole 424 a is formed at the center of the core member 424. The rotation shaft member 41a of the motor 41 is inserted and fixed in the through hole 424a. The core member 424 is connected to the first disk member 420 and the second disk member 421 by a plurality (eight in this example) of connection members 426 extending radially from the core member 424. The plurality of connection members 426 are formed at equal intervals on the circumference of the core member 424. A space portion 425 is formed between the adjacent connection members 426.

  The suction fan 42 has a plurality of wing members 423 arranged between the first disk member 420 and the second disk member 421. The plurality of wing members 423 are formed in a curved radial shape from the center side to the outer peripheral side of the first disk member 420 and the second disk member 421. Each of the adjacent wing members 423 communicates with one of the space portions 425. For this reason, the suction fan 42 can blow out the air sucked from the center toward the outer periphery of the first disk member 420 and the second disk member 421 through the space 425 and between the adjacent wing members 423.

  The air guide 43 is disposed on the upstream side of the suction fan 42. The air guide portion 43 includes a counter arrangement portion 432 that is disposed to face the suction fan 42 with a predetermined gap, and a guide portion 431 that is integrally formed with the counter arrangement portion 432 around the counter arrangement portion 432. ing. Since the air guide portion 43 is disposed with a predetermined gap from the suction fan 42, no sliding resistance is generated between the air guide portion 43 and the suction fan 42 when the suction fan 42 rotates. It is like that. Further, the opposing arrangement portion 432 is formed in a shape that follows the outer surface on the upstream side of the second disk member 421. For this reason, the suction fan 42 can rotate smoothly without colliding with the air guide unit 43 in a state of being opposed to the air guide unit 43. An opening 43 a is formed at the center of the opposed arrangement portion 432. The air sucked into the suction part 3 is sucked into the suction fan 42 through the opening 43 a formed in the opposing arrangement part 432. The air guide part 43 has a plurality of plate-like members 433 on the upstream side. The plate-like member 433 is also formed below the opening 43a. The air introduced into the air guide part 43 is sucked into the suction fan 42 by the plate-like member 433 so as to be aligned in a certain direction to some extent.

  The guide portion 431 is formed so as to cover at least the upstream side of the outer periphery of the suction fan 42 and bend from the upstream side to the downstream side. That is, the inner surface of the guiding portion 431 is formed in a concave shape that spreads toward the inner surface of the housing 31. The guide portion 431 is provided on the outermost peripheral side of the air guide portion 43. The diameter of the air guide portion 43 in the region where the guide portion 431 is formed is larger than the diameter of the suction fan 42. For this reason, a predetermined gap is provided between the outermost periphery of the suction fan 42 placed on the air guide part 43 and the guide part 431. The air blown from the suction fan 42 proceeds in the radial direction of the suction fan 42 in this predetermined gap, but the traveling direction is changed downstream of the suction fan 42 by the guide portion 431. The air guide portion 43 is fitted to the inner surface of the housing 31, and the inner surface of the guide portion 431 is formed so as to be smoothly connected to the inner surface of the housing. The air that has passed through the guide portion 431 is guided further downstream by the inner surface of the housing 31. The air guided by the guiding portion 431 and guided downstream by the inner surface of the housing 31 is exhausted to the outside through the first exhaust port group 6a and the second exhaust port group 6b formed in the housing 31. The

  The filter mounting member 44 has a thin dish (petri dish) shape in which an opening 44 a is formed in the bottom plate 441. The diameter of the bottom plate 441 is larger than the diameter of the filter 45, and the diameter of the opening 44 a is smaller than the diameter of the filter 45. Further, the diameter of the filter 45 is larger than the diameter of the opening 43 a of the air guide portion 43. For this reason, when the filter mounting member 44 is mounted on the air guide 43 while the filter 45 is placed on the bottom plate 441 of the filter mounting member 44, the filter 45 closes the opening 43a of the air guide 43. Retained.

  The vacuum cleaner 1 can rectify the air blown out from the suction fan 42 by the air guide unit 43 without using a rectifier diffuser like a conventional vacuum cleaner. For this reason, the cleaner 1 can reduce the number of parts constituting the cleaner and reduce the size and weight of the suction unit 3. As a result, the operability of the cleaner 1 is improved.

  Returning to FIG. 4, the housing 31 has a protruding portion 356 formed to protrude from the inner wall surface of the second housing member 31 b toward the internal space of the housing 31. Moreover, the housing | casing 31 has the projection part 355 (not shown in FIG. 4, refer FIG. 13) formed so that it might protrude toward the internal space of the housing | casing 31 from the inner wall face of the 1st housing member 31a. . The projecting portion 355 and the projecting portion 356 are disposed to face each other when the first housing member 31a is attached to the second housing member 31b. When the first housing member 31a is attached to the second housing member 31b in a state where the air guiding portion 43 is placed on the protruding portions 355 and 356, the outer peripheral surface of the air guiding portion 43 becomes the protruding portion 355 and the protruding portion. Along the inner peripheral surface of the casing 31 directly above the portion 356. Thereby, the outer periphery of the guide part 431 (see FIG. 7), that is, the outer periphery of the air guide part 43 is fitted to the inner periphery of the housing 31. Moreover, the outer peripheral surface of the air guide part 43 is circular. Further, the outer periphery of the air guide portion 43 is formed to extend toward the downstream side of the suction fan 42. For this reason, the inner surface of the casing 31 along the outer peripheral surface has a circular shape when viewed in the direction of the rotation axis of the suction fan 42.

  Next, a schematic configuration of the shaft portion 5 will be described with reference to FIGS. Fig.9 (a) is the disassembled perspective view which looked at the axial part 5 from the front right diagonal upper direction. FIG. 9B is a perspective view of the shaft portion 5 as viewed from obliquely upward on the rear left side. Fig.10 (a) is an enlarged view which expands and shows the front end side vicinity of the axial part 5 shown to Fig.9 (a). FIG.10 (b) is an enlarged view which expands and shows the front end side vicinity of the axial part 5 shown in FIG.9 (b).

  As shown in FIG. 9A, the shaft portion 5 includes a first shaft member 51a and a second shaft member 51b that can be divided from each other in a direction perpendicular to the extending direction (that is, the longitudinal direction) of the shaft portion 5, and The first shaft member 51a and the second shaft member 51b have a third shaft member 51c that can be divided in the direction in which the shaft portion 5 extends. The second shaft member 51 b extends from the region where the shaft side operation portion 501 is provided to the large diameter portion 502 and constitutes the back side of the shaft portion 5. The third shaft member 51 c constitutes a region for accommodating the battery accommodating portion 8. Furthermore, the 3rd shaft member 51c can be utilized as a holding part when removing the 1st shaft member 51a and the 2nd shaft member 51b, and using the cleaner 1 as a handy type cleaner. The first shaft member 51a constitutes the shaft portion 5 excluding the second shaft member 51b and the third shaft member 51c.

  As shown in FIG. 10A and FIG. 10B, the shaft portion 5 has at least a part of a rib formed so as to extend in the extending direction of the shaft portion 5. The first shaft member 51 a is formed with first ribs 52 and 53 extending in the same direction as the extending direction of the shaft portion 5, and the second shaft member 51 b is orthogonal to the extending direction of the shaft portion 5. A second rib 54 is formed. A pair of first ribs 52 and 53 are formed on the first shaft member 51a so as to face each other. A plurality of second ribs 54 (second ribs 54a, 54b, 54c, 54d, 54e) are provided. The second ribs 54a, 54b, 54c, 54d, 54e are formed in a thin plate semicircular shape. A cylindrical through hole into which a screw is inserted when the second shaft member 51b is screwed to the first shaft member 51a is formed in the second rib 54d and the second rib 54e substantially at the center.

  The first rib 52 includes a first contact portion 520a formed in a slit shape, a second contact portion 520b formed by cutting out a rectangular shape, a third contact portion 520c formed in a slit shape, and A fourth contact portion 520d. The second rib 54 includes a first contact portion 530a formed in a slit shape, a second contact portion 530b formed in a rectangular shape, a third contact portion 530c formed in a slit shape, A fourth contact portion 530d. The first contact portion 520a and the first contact portion 530a are disposed to face each other, the second contact portion 520b and the second contact portion 530b are disposed to face each other, and the third contact portion 520c and the The third contact portion 530c is disposed opposite to the third contact portion 530c, and the fourth contact portion 520d and the fourth contact portion 530d are disposed opposite to each other. The slit widths of the first contact portions 520a and 530a, the third contact portions 520c and 530c, and the fourth contact portions 520d and 520d are formed to be slightly larger than the thickness of the second rib 54. The longitudinal widths of the second contact portions 520b and 530b are formed slightly larger than the arrangement interval between the second ribs 54b and the second ribs 54c.

  When the first shaft member 51a and the second shaft member 51b are combined, the first contact portions 520a and 530a are disposed at positions corresponding to the second ribs 54a, and the second contact portions 520b and 530b are the second ribs. 54b and 54c are disposed at positions corresponding to the second ribs 54d, and the fourth contact portions 520d and 520d are disposed at positions corresponding to the second ribs 54e. Be placed. For this reason, the 1st ribs 52 and 53 and the 2nd rib 54 are contacted when combining the 1st axis member 51a and the 2nd axis member 51b. The second rib 54a is inserted into and contacted with the first contact portion 520a and the first contact portion 530a. The second rib 54b is disposed on the upper side of the second contact part 520b and the second contact part 530b, and the second rib 54c is disposed on the lower side of the second contact part 520b and the second contact part 530b. The Accordingly, the second ribs 54b and 54c are inserted into and contacted with the second contact portion 520b and the second contact portion 530b. The second rib 54d is inserted into and in contact with the third contact portion 520c and the third contact portion 530c. The second rib 54e is inserted into and in contact with the fourth contact portion 520d and the fourth contact portion 530d. Since the first ribs 52 and 53 and the second ribs 54 are combined vertically and horizontally, the strength of the shaft portion 5 can be improved while reducing the weight of the shaft portion 5. In addition, since the first contact portions 520a and 530a, the second contact portions 520b and 530b, the third contact portions 520c and 530c, and the fourth contact portions 520d and 530d are formed in a concave shape, the first shaft It also functions as a positioning member for the second shaft member 51b relative to the member 51a. The same effect can be obtained even if the second rib is provided on the first shaft member 51a and the first rib is provided on the second shaft member 51b.

  The first ribs 52 and 53 are formed to extend in the extending direction of the shaft portion 5. Further, the first ribs 52 and 53 are formed so as to protrude in the direction from the front side to the back side of the cleaner 1. For this reason, even if the user who is using the cleaner 1 while tilting the gripping part 503 while holding the gripping part 503 lifts the suctioning part 3 while maintaining the tilted state, the shaft part 5 is caused by the weight of the suctioning part 3. Can be prevented from bending. Further, the shaft portion 5 has a second rib 54 that is in contact with the first ribs 52 and 53. For this reason, even if a user lifts the cleaner 1 in a tilted state, the first ribs 52 and 53 and the second rib 54 can further prevent the shaft portion 5 from being bent due to the weight of the suction portion 3. .

  Returning to FIG. 9, an operation board 501 a for the shaft-side operation unit 501 for operating the suction fan 42 is attached to the second shaft member 51 b near the third shaft member 51 c. The operation substrate 501a has a thin plate rectangular shape. The operation substrate 501 a is provided between the pair of first ribs 52 and 53. The length in the short direction of the operation substrate 501a is slightly smaller than the distance between the pair of first ribs 52 and 53. Thereby, the operation substrate 501a can be easily positioned and arranged on the pair of first ribs 52 and 53. A switch group 510 is provided on the operation board 501a. The switch group 510 includes a strong / standard switch 510a used for starting and switching a standard operation and a strong operation, an automatic switch 510b used for starting an automatic operation, and a stop switch 510c for stopping the operation. Have. When the second shaft member 51b to which the operation board 501a is attached is attached to the first shaft member 51a, the strong / standard switch 510a, the automatic switch 510b, and the position corresponding to the switch group 510 of the first shaft member 51a Three through holes 511 into which the stop switch 510c is inserted are formed. A button portion 501c is disposed on the first shaft member 51a so as to cover the switch group 510 exposed in the through hole 511. The button part 501c is a member formed by a membrane sheet, and is pressed when the user of the cleaner 1 operates the cleaner 1. The button portion 501c is formed with a finger guide portion that serves as a guide for the positions of the strong / standard switch 510a, the automatic switch 510b, and the stop switch 510c. The button portion 501c, the through hole 511, the switch group 510, and the operation board 501a constitute the shaft side operation portion 501.

  A connecting portion 11 is provided between the shaft portion 5 and the third shaft member 51c. The connection part 11 includes a first connection member 111 and a second connection member 112. The first connection member 111 and the second connection member 112 are made of glass fiber reinforced resin. The shaft portion 5 uses the first connection member 111 and the second connection member 112 formed of glass fiber reinforced resin for the connection portion 111 having relatively weak strength, so that the strength of the connection portion 111 is improved. Yes. Thereby, even if the user lifts the vacuum cleaner 1 while holding the shaft portion 5, the shaft portion 5 is further prevented from being bent by the weight of the suction portion 3. The first connecting member 111 is disposed at the end portion of the third shaft member 51c facing the first shaft member 51a, and the second connecting member 112 is disposed at the end portion of the shaft portion 5 facing the third shaft member 51c. Has been. More specifically, the 2nd connection member 112 is arrange | positioned at the insertion end part 55 provided in the edge part of the 1st shaft member 51a facing the 3rd shaft member 51c. The second connection member 112 has a cylindrical shape in which the end on the large diameter portion 502 side is closed. The first connecting member 111 has a side wall portion 111 a having an outer shape slightly shorter than the inner diameter of the second connecting member 112.

  The outer diameter of the insertion end 55 is smaller than the inner diameter of the third shaft member 51c. For this reason, the 1st shaft member 51a and the 3rd shaft member 51c are connected by inserting the insertion end part 55 in the 3rd shaft member 51c. When the insertion end portion 55 is inserted into the third shaft member 51 c, the first connection member 111 is inserted into the second connection member 112. Each of the second connection member 112 and the first connection member 111 is provided with an electrode (not shown in FIG. 9, which will be described later with reference to FIGS. 12 to 14). These electrodes are connected by inserting 111. As a result, a signal indicating that the switch group 510 has been operated is transmitted from the operation board 501 a to the control board 34 via the connector 102 of the connector group 10.

  The first connection member 111 also functions as a support member that supports the battery housing portion 8 generally called a battery pack. The first connecting member 111 has claw portions 111b and 111c protruding toward the battery housing portion 8 and a claw portion (not shown). When the first connecting member 111 is attached to the third shaft member 51c, the three claw portions 111b and 111c are disposed in the recessed regions between the battery placement portions 81, 82 and 83 of the battery housing portion 8, respectively. The accommodating part 8 is supported.

  The battery housing portion 8 is also supported by the battery support member 12 at the end opposite to that supported by the first connection member 111. The battery support member 12 includes a side wall portion 120 that is formed in a size that can be accommodated in the third shaft member 51c, and claw portions 121a, 121b, and 121c provided in a region inside the side wall portion 120. Yes. The claw portions 121a, 121b, and 121c are formed so as to protrude toward the battery housing portion 8. By arranging the battery housing portion 8 and the battery support member 12 in the regular orientation in the third shaft member 51c, the claw portions 121a, 121b, and 121c are connected to the battery placement portions 81, 82, and 83 of the battery housing portion 8 respectively. It arrange | positions at the recessed area | region between each, and supports the battery accommodating part 8 with the 1st connection member 111. FIG.

  Since the battery housing portion 8 is supported at both ends by the suction side connecting member 111 and the battery support member 12, it is difficult to apply a load based on the bending of the shaft portion 5 to the battery housing portion 8. Thereby, it can prevent that the battery accommodating part 8 will be damaged.

  The connector group 10 is disposed in the side wall portion 120 of the battery support member 12 and below the claw portions 121a, 121b, and 121c. The connector group 10 includes a power supply connector 101 and a signal supply connector 102. Both the connector 101 and the connector 102 are disposed on the battery support member 12 in a state where male and female connectors are connected. One of the male type and the female type is connected to the charging terminal 304, and the other is connected to the secondary battery accommodated in the battery accommodating unit 8. Thereby, the vacuum cleaner 1 can supply electric power from a secondary battery to the suction part 3 side via the connector 101, or can charge a secondary battery from the suction part 3 side.

  The battery housing unit 8 houses a secondary battery that supplies electric power for rotating the suction fan 42. The battery housing part 8 has an elongated shape. The battery housing portion 8 is disposed so as to extend in the same direction as the shaft portion 5. Moreover, the battery accommodating part 8 is arrange | positioned so that it may extend in the same direction as the 3rd shaft member 51c. The battery housing portion 8 is disposed on the same axis as the shaft portion 5. The shaft center of the shaft portion 5 is, for example, a virtual straight line that is orthogonal to the end surface of the insertion end portion 55 and passes through the center of the insertion end portion 55. Moreover, the battery accommodating part 8 is arrange | positioned on the same axial center as the 3rd shaft member 51c. The axis of the third shaft member 51c is, for example, a virtual straight line that is orthogonal to the end surface on the shaft portion 5 side and passes through the center of this end surface.

  Here, the battery accommodating portion 8 will be described with reference to FIG. FIG. 11 is a diagram schematically showing the battery housing part 8. The upper part of FIG. 11 shows a schematic plan view of the battery housing part 8, and the lower part of FIG. 11 shows a schematic front view of the battery housing part 8. Is shown. In FIG. 11, for easy understanding, a secondary battery that is housed in the battery housing portion 8 and cannot be visually recognized is illustrated, and the secondary battery set 813 is higher than the secondary battery sets 811 and 812. It is shown with the direction shifted.

  As shown in FIGS. 10 and 11, the battery housing portion 8 includes battery placement portions 81, 82, and 83. The battery accommodating part 8 arrange | positions and accommodates the secondary batteries 811a-811c, 812a-812c, 813a-813c in the battery arrangement | positioning parts 81,82,83 (refer FIG. 11). The secondary batteries 811a, 811b, 811c are arranged in the battery arrangement unit 81. The secondary battery sets 812a, 812b, 812c are arranged in the battery arrangement unit 82. The secondary batteries 813a, 813b, 813c are arranged in the battery arrangement unit 83. In the battery housing portion 8, secondary battery sets 811, 812, and 813 each including a plurality of secondary batteries are placed in each of the battery placement portions 81, 82, and 83. The secondary battery set 811 is a set including the secondary batteries 811a, 811b, and 811c as a set. The secondary battery set 812 is a set including the secondary batteries 812a, 812b and 812c as a set, and the secondary battery 813 is a set including the secondary batteries 813a, 813b and 813c as a set. The secondary battery set 811, the secondary battery set 812, and the secondary battery set 813 are arranged adjacent to each other in parallel. Secondary batteries 811a, 811b and 811c included in the secondary battery set 811 are connected in series, and secondary batteries 812a, 812b and 812c included in the secondary battery set 812 are connected in series and included in the secondary battery set 813. Secondary batteries 813a, 813b, and 813c are connected in series. The secondary battery set 811, the secondary battery set 812, and the secondary battery set 813 are connected in parallel. In the present embodiment, the battery housing portion 8 has three sets (secondary battery sets 811, 812, and 813) each including three columnar secondary batteries, and these sets are arranged in a triangular shape. Has been. By providing a plurality of secondary battery sets including a plurality of secondary batteries as a set, the battery housing portion 8 can be reduced in size and increased in capacity.

  Next, a sectional configuration of the vacuum cleaner 1 will be described with reference to FIGS. In FIG.12 and FIG.13, the battery accommodating part 8 and the motor 41 have shown the external shape instead of the cross section. In FIG. 14, the battery housing portion 8 and the motor 41 are not housed in a cross section but are housed in the suction portion 3 and the shaft portion 5.

  As shown in FIG. 12, the second housing member 31 b has a first exhaust port group 6 a and a second exhaust port group 6 b on the back side of the motor 41. The first exhaust port group 6a has a first tubular portion 602a formed extending from the plurality of first exhaust ports 601a (not shown in FIG. 12) toward the internal space of the housing 31. The second exhaust port group 6b has a second cylindrical portion 602b formed extending from the plurality of second exhaust ports 601b (not shown in FIG. 12) toward the internal space of the housing 31. The central axes of the first cylindrical portion 602a and the second cylindrical portion 602b are directed in the left-right direction. The first tubular portion 602a opens from the left side surface of the vacuum cleaner 1 toward the right side surface. The second cylindrical portion 602b opens from the right side surface of the vacuum cleaner 1 toward the left side surface. The exhaust direction of the air in the housing 31 is regulated by the first cylindrical portion 602a and the second cylindrical portion 602b. The air in the casing 31 is restricted in the exhaust direction in the direction of the central axis of the first cylindrical portion 602a and the second cylindrical portion 602b. For this reason, the air in the housing 31 is exhausted from the first exhaust port group 6a toward the right side surface of the cleaner 1, and is exhausted from the second exhaust port group 6b toward the left side surface of the cleaner 1. The Thereby, the air exhausted from the cleaner 1 hardly hits the user of the cleaner 1.

  The air guide portion 43 is placed on the protrusion portion 355 and the protrusion portion 356 and is fitted into the inner wall surface of the housing 31 with almost no gap. For this reason, the air flowing in from the dust collecting part 32 side is introduced into the central part of the suction fan 42, and the air blown from the outer peripheral part of the suction fan 42 is efficiently used for the first exhaust port group 6 a using the guide part 431. And it can guide to the 2nd exhaust outlet group 6b side.

  As shown in FIGS. 12 to 14, the battery accommodating portion 8 is accommodated in the internal space of the third shaft member 51 c with almost no gap. The connector group 10 is disposed between the battery housing portion 8 and the motor 41.

  The first connection member 111 provided above the battery housing portion 8 has an electrode 111d, and the second connection member 112 has an electrode 112a. The electrode 111d is inserted into the electrode 112a, and electrical connection between the electrode 112a and the electrode 111d is ensured. An operation board 501 a disposed between the first rib 52 and the second rib 53 is provided above the connection portion 11. The operation board 501a is provided with a connector 512 connected to the connector 102 (see FIG. 9) by wiring (not shown).

[Determination method of necessity of internal cleaning of vacuum cleaner]
Next, a method for determining the necessity of internal cleaning of the cleaner 1 will be described with reference to FIGS. 15 to 19. First, the structure relevant to the determination | judging of the necessity for the internal cleaning of the cleaner 1 is demonstrated using FIG. FIG. 15 is a block diagram of the main configuration related to the determination of the necessity of internal cleaning of the cleaner 1. In FIG. 15, the strong / standard switch 510a and the automatic switch 510b are collectively referred to as “operation switches”.

  As shown in FIG. 15, the main components related to the determination of the necessity of internal cleaning of the vacuum cleaner 1 include the control means 340, the motor 41, the pressure detection unit 360, the notification region 302, the shaft side operation unit described above. 501 and the suction side operation unit 301 are included. The control means 340 is provided on the control board 34. The control means 340 includes a motor drive control unit 340b that controls driving of the motor 41, a light emitting element drive control unit 340c that drives the light emitting element 34b in the notification area 302, and a pressure electrical signal input from the pressure detection unit 360. And a storage unit 340f that stores a pressure detection value obtained by / D conversion. In addition, the control unit 340 performs A / D conversion on the electrical pressure signal input from the pressure detection unit 360 or calculates a pressure difference using the detected pressure value stored in the storage unit 340f. And a cleaning necessity determination unit 340d that determines whether or not internal cleaning is necessary based on the calculation result of the pressure difference calculation unit 340e. Further, the control unit 340 includes a general control unit 340a that controls the motor drive control unit 340b, the light emitting element drive control unit 340c, the cleaning necessity determination unit 340d, the pressure difference calculation unit 340e, and the storage unit 340f. Yes.

  When the operation switches 510a and 510b or the operation / stop switch 34a are operated by the user and the operation of the stopped vacuum cleaner 1 is started, the secondary batteries 811a to 811c and 812a to be accommodated in the battery accommodating portion 8 are started. Power is supplied to the control board 34 from 812c, 813a to 813c. As a result, the overall control unit 340a is activated to start the operation of the cleaner 1, and starts a process for determining whether or not the cleaner 1 needs to be cleaned internally. Further, when the stop switch 510c or the operation / stop switch 34a is operated by the user and processing for ending the operation of the cleaner 1 in operation is started, the overall control unit 340a The process of determining whether or not cleaning is necessary and the operation of the motor 41 are terminated, and the cleaner 1 is brought into a stopped state.

  Here, the determination method of the necessity of the internal cleaning of the cleaner 1 is demonstrated using FIG. 16, referring FIG. The process of the method for determining whether or not the internal cleaning of the cleaner 1 shown in FIG.

  When the operation switch 510a, 510b or the operation / stop switch 34a is operated by the user and the operation of the cleaner 1 being stopped is started, as shown in FIG. 16, in step S1, the overall control unit 340a The number of measurements N during the initial operation is initialized, and the process proceeds to step S3. Specifically, the overall control unit 340a substitutes 1 for the number of times of measurement N during the initial operation and stores it in a predetermined storage area. In the present embodiment, the measurement count N is stored in a predetermined storage area provided in the overall control unit 340a, but may be stored in the storage unit 340f. In addition, the overall control unit 340a turns on a pressure electric signal reception permission flag stored in a predetermined storage area in order to allow reception of the pressure electric signal input from the pressure detection unit 360.

  In step S3, the overall control unit 340a stores the pressure detection value Pb corresponding to the pressure in the initial operation detected and transmitted by the pressure detection unit 360 in the storage unit 340f, and the process proceeds to step S5. More specifically, the pressure difference calculation unit 340e performs A / D conversion on the electrical pressure signal transmitted from the pressure detection unit 360, and outputs a digital signal obtained by the A / D conversion to the overall control unit 340a. The overall control unit 340a sets the value of the digital signal input from the pressure difference calculation unit 340e as the pressure detection value Pb, and stores the pressure detection value Pb in the storage unit 340f in association with the current number of times N.

  In step S5, the overall control unit 340a adds 1 to the number of measurements N at the time of the initial operation, stores the added value as the number of measurements N in a predetermined storage area, and shifts the processing to step S7.

  In step S7, the overall control unit 340a determines whether or not the number of measurements N during the initial operation exceeds the maximum number. If it is determined that the number of measurements N exceeds the maximum number, the process proceeds to step S9, and the number of measurements is determined. If it is determined that N does not exceed the maximum number, the process returns to step S3. In the present embodiment, the maximum number of measurement times N during the initial operation is set to “5”. Therefore, the overall control unit 340a determines that the number of times of measurement N exceeds the maximum number if the number of times of measurement N in the initial operation is greater than “5”, and the number of times of measurement N in the initial operation is “5” or less. If it is a value, it determines with the frequency | count N of measurement not exceeding the maximum number.

  Therefore, the overall control unit 340a receives the electrical pressure signal from the pressure detection unit 360 five times, that is, until the digital signal obtained by A / D converting the electrical pressure signal is input from the pressure difference calculation unit 340e five times. Steps S3 to S7 are repeated. Further, when the number N of times of measurement during the initial operation exceeds the maximum value, the overall control unit 340a turns off the pressure electric signal reception permission flag stored in the predetermined storage area, and the pressure transmitted from the pressure detection unit 360. Even if an electric signal is not received or received, it is discarded. As described above, in the vacuum cleaner 1, the electrical pressure signal transmitted from the pressure detection unit 360 is divided into a time when it can be received and a time when it cannot be received. Thereby, the cleaner 1 can memorize | store only the pressure detection value in a desired timing in the memory | storage part 340f, and can improve the precision of the necessity determination of an internal cleaning.

  In step S9, the pressure difference calculation unit 340e reads the plurality of pressure detection values Pb stored in the storage unit 340f based on an instruction from the overall control unit 340a, calculates the average pressure value Pba, and calculates the calculated average pressure value. Pba is stored in the storage unit 340f. The pressure difference calculation unit 340e is configured to calculate the average pressure value Pba from other pressure detection values Pb by omitting the maximum value and the minimum value among the plurality of pressure detection values Pb stored in the storage unit 340f. . When the overall control unit 340a receives information indicating that the average pressure value Pba has been calculated from the pressure difference calculation unit 340e, the overall control unit 340a proceeds to step S11.

  In step S11, the motor drive control unit 340b outputs a rotation start signal to the motor 41 based on an instruction from the overall control unit 340a. Thereby, the motor 41 starts to rotate. When the overall control unit 340a receives information indicating that the rotation start signal is output from the motor drive control unit 340b, the overall control unit 340a starts counting for a predetermined time until the stable operation of the motor 41, and shifts the processing to step S13. In step S11, in order to determine the stable operation of the motor 41, a predetermined time corresponding to a sufficiently long time is counted. Instead, the rotational speed of the motor 41 is detected and the rotational speed is a predetermined value. It may be determined that the motor 41 is operating stably by exceeding.

  In step S13, the overall control unit 340a determines whether or not a predetermined time has elapsed until the motor 41 operates stably. If it is determined that the predetermined time has elapsed, the overall control unit 340a proceeds to step S15 and the predetermined time has elapsed. If it is determined that it is not, the process of step S15 is repeated.

  In step S15, the overall control unit 340a initializes the number of times of measurement M when the rotational operation of the motor 41 is stable (hereinafter, sometimes simply abbreviated as “stable”), and the process proceeds to step S17. Specifically, the overall control unit 340a assigns 1 to the measurement count M at the time of stability and stores it in a predetermined storage area. In the present embodiment, the measurement count M is stored in a predetermined storage area provided in the overall control unit 340a, but may be stored in the storage unit 340f. Further, the overall control unit 340a turns on the pressure electric signal reception permission flag stored in the predetermined storage area in order to allow the reception of the pressure electric signal.

  In step S17, the overall control unit 340a stores the pressure detection value Ps corresponding to the stable pressure detected and transmitted by the pressure detection unit 360 in the storage unit 340f, and the process proceeds to step S19. More specifically, the pressure difference calculation unit 340e performs A / D conversion on the electrical pressure signal transmitted from the pressure detection unit 360, and outputs a digital signal obtained by the A / D conversion to the overall control unit 340a. The overall control unit 340a sets the value of the digital signal input from the pressure difference calculation unit 340e as the pressure detection value Ps, and stores this pressure detection value Ps in the storage unit 340f in association with the current measurement count M.

  In step S19, the overall control unit 340a adds 1 to the measurement count M at the time of stability, stores the added value as the measurement count M in the predetermined storage area, and shifts the processing to step S21.

  In step S21, the overall control unit 340a determines whether or not the measurement count M at the time of stability exceeds the maximum number. If it is determined that the measurement count M exceeds the maximum number, the process proceeds to step S23, and the measurement count M Is determined not to exceed the maximum number, the process returns to step S17. In the present embodiment, the maximum number of measurement times M when stable is set to “5”. Therefore, the overall control unit 340a determines that the measurement count M exceeds the maximum number if the measurement count M at the time of stability is greater than “5”, and the measurement count N at the time of stability is a value of “5” or less. If there is, it is determined that the number of measurements M does not exceed the maximum number.

  Therefore, the overall control unit 340a receives the electrical pressure signal from the pressure detection unit 360 five times, that is, until the digital signal obtained by A / D converting the electrical pressure signal is input from the pressure difference calculation unit 340e five times. Steps S17 to S21 are repeated. Further, when the measurement count M at the time of stability exceeds the maximum value, the overall control unit 340a turns off the pressure signal reception permission flag stored in a predetermined storage area, and the pressure signal transmitted from the pressure detection unit 360 is turned off. If the signal is not received or received, it is discarded. As described above, in the vacuum cleaner 1, the electrical pressure signal transmitted from the pressure detection unit 360 is divided into a time when it can be received and a time when it cannot be received. Thereby, the cleaner 1 can memorize | store only the desired pressure detection value in the memory | storage part 340f, and can improve the precision of the necessity determination of internal cleaning.

  In step S23, the pressure difference calculation unit 340e reads the plurality of pressure detection values Ps stored in the storage unit 340f based on an instruction from the overall control unit 340a, calculates the average pressure value Psa, and calculates the calculated average pressure value. Psa is stored in the storage unit 340f. The pressure difference calculation unit 340e is configured to calculate the average pressure value Psa from other pressure detection values Ps by omitting the maximum value and the minimum value among the plurality of pressure detection values Ps stored in the storage unit 340f. . When the overall control unit 340a receives information indicating that the average pressure value Psa has been calculated from the pressure difference calculation unit 340e, the overall control unit 340a proceeds to step S25.

  In step S25, the pressure difference calculation unit 340e reads the average pressure value Pba at the initial operation and the average pressure value Psa at the stable operation stored in the storage unit 340f based on the instruction from the overall control unit 340a, and calculates the average pressure. A differential pressure value PΔ which is a difference between the value Pba and the average pressure value Psa is calculated, and the calculated differential pressure value PΔ is stored in the storage unit 340f. The pressure difference calculation unit 340e calculates the differential pressure value PΔ by subtracting the average pressure value Pba at the initial operation from the average pressure value Psa at the stable operation. When the overall control unit 340a receives information indicating that the differential pressure value PΔ has been calculated from the pressure difference calculation unit 340e, the overall control unit 340a proceeds to step S27.

  In step S27, the cleaning necessity determination unit 340d compares the differential pressure value PΔ read from the storage unit 340f with a threshold value Px for determining whether internal cleaning is necessary based on an instruction from the overall control unit 340a. And it is discriminate | determined whether the internal cleaning of the cleaner 1 is required. The cleaning necessity determination unit 340d transmits information on whether or not internal cleaning is necessary to the overall control unit 340a. When dust collects in the dust collecting part 32 or the filter 45 of the air blowing means 4 is clogged, the suction force of the suction part 3 decreases, and the value of the pressure detection value Ps at the time of stability increases. As a result, the value of the differential pressure value PΔ becomes small. For this reason, when the differential pressure value PΔ is equal to or greater than the threshold value Px, the cleaning necessity determination unit 340d determines that the suction force of the suction unit 3 is not reduced and the interior of the cleaner 1 is not dirty. Information that internal cleaning is not necessary is transmitted to the overall control unit 340a. On the other hand, when the differential pressure value PΔ is smaller than the threshold value Px, the cleaning necessity determination unit 340d determines that the suction force of the suction unit 3 is reduced and the interior of the cleaner 1 is dirty, and performs internal cleaning. Is transmitted to the overall control unit 340a. If the overall control unit 340a receives the information indicating that internal cleaning is necessary, the overall control unit 340a proceeds to step S29. On the other hand, when receiving information that internal cleaning is not necessary, the overall control unit 340a returns the process to step S15, and again from step S15 to step S25 from initialization of the stable measurement count M to calculation of the differential pressure value PΔ. Execute the process.

  In step S29, the light emitting element drive control unit 340c applies to the light emitting element 34b corresponding to the third window 302c for notifying that internal cleaning is necessary based on the instruction of the overall control unit 340a. In response to this, a light emission start signal is output. As a result, the light emitting element 34b corresponding to the third window 302c emits light, and the third window 302c is turned on. This notifies the user of the vacuum cleaner 1 that internal cleaning is necessary. When the overall control unit 340a receives information indicating that the light emission start signal has been output from the light emitting element drive control unit 340c, the overall control unit 340a starts counting the notification time of internal cleaning, and proceeds to step S31.

  In step S31, the overall control unit 340a determines whether or not the operation stop switch, that is, the stop switch 510c or the operation / stop switch 34a is in an on state. If it is determined that the operation stop switch is not in an on state, the overall control unit 340a proceeds to step S33. If the process is shifted and it is determined that the operation stop switch is on, the process shifts to step S37. In step S31, the overall control unit 340a determines whether or not the operation / stop switch 34a is on as a stop switch.

  In step S33, the overall control unit 340a determines whether or not the notification time for notifying that the internal cleaning of the cleaner 1 is necessary has ended. If it is determined that the notification time has ended, the process proceeds to step S35. If it is determined that the notification time has not ended, the process returns to step S31.

  In step S35 after it is determined in step S31 that the operation stop switch is not in the ON state and it is determined that the internal cleaning notification time has ended, the light emitting element drive control unit 340c is based on an instruction from the overall control unit 340a. In order to end the notification that the internal cleaning of the cleaner 1 is necessary, a light emission stop signal is output to the light emitting element 34b corresponding to the third window 302c. As a result, the light emitting element 34b corresponding to the third window 302c stops emitting light, and the third window 302c is turned off. Thereby, regardless of whether or not the user has cleaned the inside of the cleaner 1, one notification of the internal cleaning is completed. When the overall control unit 340a receives information indicating that the light emission stop signal has been output from the light emitting element drive control unit 340c, the overall control unit 340a returns the process to step S15. The overall control unit 340a initializes the number M of times of stable measurement and turns on the pressure electric signal reception permission flag in order to start receiving the pressure electric signal at the time of stability again (step S15).

  On the other hand, in step S37 after it is determined in step S31 that the operation stop switch is in the on state, the light emitting element drive control unit 340c needs to clean the inside of the cleaner 1 based on an instruction from the overall control unit 340a. In order to end the notification that there is, a light emission stop signal is output to the light emitting element 34b corresponding to the third window portion 302c. As a result, the light emitting element 34b corresponding to the third window 302c stops emitting light, and the third window 302c is turned off. When the overall control unit 340a receives information indicating that the light emission stop signal has been output from the light emitting element drive control unit 340c, the overall control unit 340a proceeds to step S39. By performing the process of step S37, it is possible to prevent the light emitting element 34b corresponding to the third window 302c from emitting light when the cleaner 1 is turned on next time.

  In step S39, the motor drive control unit 340b outputs a rotation stop signal to the motor 41 based on an instruction from the overall control unit 340a. As a result, the motor 41 stops rotating. Thereafter, the power supply to the control board 34 is finished, and the cleaner 1 stops.

  As described above, the pressure difference calculation unit 340e calculates the average pressure value Psa and the differential pressure value PΔ in determining whether or not the internal cleaning of the cleaner 1 is necessary. Further, the cleaning necessity determination unit 340d compares the differential pressure value PΔ calculated by the pressure difference calculation unit 340e with the threshold value Px, and if it is determined that the differential pressure value PΔ is smaller than the threshold value Px, internal cleaning is necessary. Determine. With this method, the pressure detector 360 detects the pressure in the ventilation path P1 during the initial operation and the stable operation. Therefore, the cleaning necessity determination unit 340d can determine whether or not the internal cleaning is necessary based on the relative pressure difference in the ventilation path P1. For this reason, even if there is an offset in the output of the pressure sensor of the pressure detector 360 or the pressure sensor deteriorates over time, the pressure in the ventilation path P1 can be detected stably.

  The cleaning necessity determination unit 340d detects the pressure detection value corresponding to the pressure detected by the pressure detection unit 360 during rotation of the motor 41, and the pressure detection unit 360 while the motor 41 is stopped, that is, during initial operation. Based on the difference from the pressure detection value corresponding to the pressure, it is determined whether the internal cleaning of the cleaner 1 is necessary. That is, the cleaning necessity determination unit 340d detects the pressure detection value corresponding to the pressure detected by the pressure detection unit 350 during the initial operation after the rotation start operation of the motor 41 and before the motor 41 starts rotating, and the motor 41. Whether or not internal cleaning is necessary is determined based on the difference from the pressure detection value corresponding to the pressure detected by the pressure detection unit 350 during the stable operation in which the rotation is stable.

  In the above-described method for determining whether or not the internal cleaning of the cleaner is necessary, the cleaning necessity determining unit 340d is based on the average value of the plurality of pressure detection values corresponding to the plurality of pressures detected by the pressure detection unit 360, respectively. The necessity of internal cleaning is determined. Thereby, the cleaning necessity determination part can determine the necessity of internal cleaning with high precision.

  In the present embodiment, the pressure difference calculation unit 340e calculates the average pressure value of the other pressure detection values by omitting the maximum value and the minimum value among the pressure detection values of four times or more (in this example, five times). Is configured to do. Thus, even if an accidental detection failure occurs when the pressure detection unit 350 detects the pressure in the ventilation path P1 (details will be described later), the cleaning necessity determination unit 340d is not affected by this detection failure. The necessity of internal cleaning can be determined.

  Further, the cleaning necessity determination unit 340d may change the threshold value to be compared with the difference in the pressure detection value corresponding to the pressure detected by the pressure detection unit 360 according to the rotation speed of the motor 41. Specifically, when the vacuum cleaner 1 is used with a suction force of “strong” (that is, “strong operation”), the rotational speed of the motor 41 is set large and the threshold value Px is set large. When 1 is used with the suction force “weak” (that is, “standard operation”), the rotational speed of the motor 41 may be set small and the threshold value Px may be set small. Here, the rotation speed is a set value, but may be an actual measurement value. Or the cleaning necessity determination part 340d may change the threshold value compared with the difference of the pressure detection value corresponding to the pressure detected by the pressure detection part 360 according to the voltage value of a secondary battery. Thereby, the necessity determination part 340d of cleaning can determine the necessity of the optimal internal cleaning according to operation amount, such as the charge amount of a secondary battery, and normal operation and strong operation.

[Air flow during operation of vacuum cleaner 1]
Next, the flow of air during the operation of the cleaner 1 will be described with reference to FIGS. 17 to 19. FIG. 17 is a cross-sectional view of the main part of the vacuum cleaner 1 cut along line CC shown in FIG. 2 and is a view showing the flow of air. FIG. 18 is a cross-sectional view of the main part of the vacuum cleaner 1 taken along the line AA shown in FIG. FIG. 19 is a diagram schematically illustrating the ventilation path P1 in the vicinity of the pressure detection unit 360.

  When the suction fan 42 rotates, as shown in FIG. 17 and FIG. 18, the internal space of the vacuum cleaner 1 includes “the suction space 710 of the suction nozzle 7 → the internal space of the joint rotating portion 73 → the internal space of the joint portion 72 → Air inlet 33 → ventilation path P1 → opening 35a → inner space 32b of dust collecting unit 32 → inner space of cone unit 307 → suction fan 42 → air guide unit 43 → inner space of housing 31 above suction fan 42 → An air flow a1 is generated in a path of “first cylindrical portion 602a and second cylindrical portion 602b → first exhaust port 601a and second exhaust port 601b”. Then, the air sucked from the suction nozzle 7 is guided by the first cylindrical portion 602a and the second cylindrical portion 602b, and laterally from the first exhaust port group 6a and the second exhaust port group 6b to the suction portion 3. It is exhausted towards.

  The pressure detection unit 360 detects the pressure in the ventilation path P1 during the initial operation and when the rotation operation of the motor 41 is stable, and transmits an electric signal obtained by converting the detected pressure to the control unit 340. As shown in FIG. 17, a through hole 352a is formed in the partition plate 35 facing the ventilation path P1 located between the air inlet 33a and the opening 35a. Further, as shown in FIG. 19, the partition plate 35 defines a ventilation path P1 together with the second housing member 31b. A first sensor substrate 36 a is disposed on the protrusion 352 provided on the partition plate 35 on a surface of the protrusion 352 that does not face the ventilation path P <b> 1. A pressure sensor (not shown) provided in the pressure detector 360 of the first sensor substrate 36a is exposed in the through hole 352a. The pressure sensor is provided at a position branched by the protruding portion 352 of the partition plate 35 and the inside of the ventilation path P1 through which the air sucked from the intake port 33a passes through the through hole 352a. For this reason, the pressure detection part 360 can avoid arrange | positioning the pressure detection surface of a pressure sensor in the direction orthogonal to the dust suction direction. As a result, the through hole 352a that exposes the pressure sensor to the ventilation path P1 is less likely to be clogged with dust, so that the pressure detector 350 can stably detect the pressure in the ventilation path P1.

  As described above, the vacuum cleaner 1 according to the present embodiment includes the motor 41 that is rotated by the power supplied from the secondary batteries 811a to 811c, 812a to 812c, and 913a to 813c, and the exhaust port (first The pressure detection unit 360 that detects the pressure in the ventilation path to the exhaust port group 6a and the second exhaust port group 6b), and the necessity of internal cleaning based on the pressure detection value corresponding to the pressure detected by the pressure detection unit 360 A notification necessity area 340d for determining whether or not internal cleaning is required by the cleaning necessity determination section 340d for determining whether or not internal cleaning is necessary. A third window 302c and a light emitting element 34b are provided.

  According to the vacuum cleaner 1 according to the present embodiment having such a configuration, even if the small motor 41 that is driven by the secondary batteries 811a to 811c, 812a to 812c, and 913a to 813c and consumes little current is used, Based on the pressure detected by the detection unit 360, it is possible to appropriately notify the user of the cleaner 1 that the internal cleaning is necessary. Thereby, the cleaning time of the suction part 3 can be determined with high accuracy and the operability of the cleaner 1 can be improved.

  In addition, the vacuum cleaner 1 according to the present embodiment includes a hoisting mechanism 2 that arranges the sucking portion 3 with respect to the sucking nozzle 7 so as to be hoistable. According to the vacuum cleaner 1 according to the present embodiment having this configuration, the suction portion 3 is stably held in the upright state with respect to the suction nozzle 7 and stored, and the cleaner 1 is moved like a mop during cleaning. Can be removed and cleaned. Thereby, the operativity of the vacuum cleaner 1 by this embodiment can be improved.

  In addition, the vacuum cleaner 1 according to the present embodiment includes the air guiding unit 43 in the air blowing means 4. According to the vacuum cleaner 1 according to the present embodiment having this configuration, the air blown from the suction fan 42 can be rectified by the air guide 43 without using a diffuser as in a conventional vacuum cleaner. For this reason, the cleaner 1 can achieve reduction of the number of parts which comprise the cleaner 1, and size reduction and weight reduction of a suction part. As a result, the cleaner 1 can be handled easily, and the operability of the cleaner 1 can be improved.

  The vacuum cleaner 1 according to the present embodiment includes the first ribs 52 and 53 on the shaft portion 5. According to the cleaner 1 according to the present embodiment having this configuration, it is possible to suppress the deflection of the shaft portion when the inclined cleaner is lifted. Thereby, even if the cleaner is inclined and lifted, it can be stably moved, so that the operability of the cleaner 1 can be improved.

  Further, the vacuum cleaner 1 according to the present embodiment includes a large diameter portion 502 at the end of the shaft portion 5. According to the vacuum cleaner 1 according to the present embodiment having this configuration, it is possible to prevent the shaft portion 5 from sliding down from the user's hand during cleaning. Thereby, it becomes easy to handle the cleaner 1, and the operability of the cleaner 1 can be improved.

  Further, the vacuum cleaner 1 according to the present embodiment includes an elongated battery housing portion 8 inside the shaft portion 5 in the vicinity of the suction portion 3. According to the cleaner 1 according to the present embodiment having this configuration, the power supply unit can be reduced in size, and the cleaner 1 can be reduced in size and weight. Thereby, it becomes easy to handle the cleaner 1, and the operability of the cleaner 1 can be improved.

  Although the cleaner 1 by the said embodiment determines the necessity of the internal cleaning of the cleaner 1 based on the pressure upstream from the ventilation means 4, this invention is not limited to this. For example, the necessity of internal cleaning of the cleaner 1 may be determined based on the pressure in the vicinity of the first and second exhaust port groups 6a and 6b that is downstream of the air blowing means 4. In this case, the pressure in the vicinity of the first and second exhaust port groups 6a and 6b is higher in the stable operation than in the operation stop or the initial operation, but by changing the threshold setting, The same effect as the embodiment can be obtained.

  Although the vacuum cleaner 1 by the said embodiment has determined the necessity of internal cleaning based on the average value of several pressure detection values, even if it determines the necessity of internal cleaning based on one pressure detection value Good. Moreover, although the vacuum cleaner 1 by the said embodiment is calculating the average pressure value except the maximum value and the minimum value among several pressure detection values, the pressure detection value corresponding to all the detected pressures is calculated. The average pressure value may be calculated by using it.

  Although the vacuum cleaner 1 by the said embodiment A / D-converts a pressure electric signal, or the pressure difference calculation part 340e calculates an average pressure value and a differential pressure value, this invention is not limited to this. . The vacuum cleaner 1 may have an A / D conversion unit that performs A / D conversion of the electrical pressure signal and an average pressure calculation unit that calculates an average pressure value. The average pressure calculation unit may be provided in the control unit 340 or may be provided in the pressure detection unit 360.

  The technical scope of the present invention is not limited to the illustrated and described exemplary embodiments, and includes all embodiments that provide an effect equivalent to the intended purpose of the present invention. Further, the technical scope of the present invention is not limited to the combinations of features of the invention defined by the claims, but is defined by any desired combination of specific features among all the disclosed features. sell.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Elevating mechanism 3 Suction part 4 Air blower 5 Shaft part 6a 1st exhaust port group 6b 2nd exhaust port group 7 Suction nozzle 8 Battery accommodating part 10 Connector group 11 Connection part 12 Battery support member 14 Nozzle main body 14a Suction space 16 joint portion 21 engaged portion 22 engaging portion 31 housing 31a first housing member 31b second housing member 32 dust collecting portions 32a, 28a, 35a, 37a, 38a, 43a, 302d, 302e, 302f, 352b , 352c Opening 32b Internal space 33 Joint connection 33a Inlet 34 Control board 34a Switch 34b, 361 Light emitting element 35 Partition plate 36 Pair of sensor boards 36a First sensor board 36b Second sensor board 37 Cone part 38 Downstream packing 39 Upstream packing 41 Motor 41a Rotating shaft member 42 Suction fan 43 Air guide 43a Opening 44 Filter Attachment member 45 Filter 51a First shaft member 51b Second shaft member 51c Third shaft member 52, 53 First ribs 54, 54a, 54b, 54c, 54d, 54e Second rib 55 Insertion end 71 Nozzle body 72 Joint portion 73 Joint rotating part 81, 82, 83 Battery placement part 101, 102 Connector 111 First connection member 111a, 120 Side wall part 111b, 111c, 121a, 121b, 121c Claw part 112 Second connection member 111d, 112a Electrode 301 Suction side operation part 301a Button part 301b Elastic member 302 Notification area 302a First window part 302b Second window part 302c Third window part 304 Charging terminal 307a Outer cone member 307b Inner cone member 340 Control means 340a Overall controller 340b Motor drive controller 340c Light emission Element drive control unit 340d Cleaning necessity determination unit 3 0e Pressure difference calculation part 340f Storage part 350 Pressure detection part 351 Opposing plate part 352 Protrusion part 352a, 424a, 511 Through hole 352c, 352d, 352e Element holding part 355, 356 Protrusion part 360 Pressure detection part 362 Light receiving element 420 First disc Member 421 Second disk member 423 Wing member 424 Core member 425 Space portion 426 Connection member 431 Guide portion 432 Opposing arrangement portion 433 Plate member 441 Bottom plate 501 Axis side operation portion 501a Operation board 501c Button portion 502 Large diameter portion 503 Holding portion 510 Switch group 520a, 530a 1st contact part 520b, 530b 2nd contact part 520c, 530c 3rd contact part 520d, 530d 4th contact part 601a 1st exhaust port 601b 2nd exhaust port 602a 1st cylindrical part 602b 2nd cylindrical part 710 suction space

Claims (7)

A secondary battery,
A motor that is rotated by electric power supplied from the secondary battery;
A suction fan rotated by the motor;
An intake port for sucking air from the outside by the suction fan;
An exhaust port for discharging air sucked from the intake port;
A pressure detector that detects a pressure in a ventilation path from the intake port to the exhaust port;
Based on a difference between the pressure detection value corresponding to the detected pressure by the pressure detection unit, the pressure detection value corresponding to the detected pressure by the pressure detecting section during the stop of the motor during the rotation of the motor , a cleaning necessity determination unit for determining the necessity of internal cleaning,
And a notifying unit for notifying that the internal cleaning is necessary when the internal cleaning is determined to be necessary by the cleaning necessity determining unit. A secondary battery,
A motor that is rotated by electric power supplied from the secondary battery;
A suction fan rotated by the motor;
An intake port for sucking air from the outside by the suction fan;
An exhaust port for discharging air sucked from the intake port;
A pressure detector that detects a pressure in a ventilation path from the intake port to the exhaust port;
The pressure detection value corresponding to the pressure detected by the pressure detection unit during the initial operation after the operation for starting the rotation of the motor and before the motor starts to rotate, and the pressure during the stable operation where the rotation of the motor is stable Based on the difference with the pressure detection value corresponding to the pressure detected by the detection unit, a cleaning necessity determination unit that determines whether internal cleaning is necessary,
A notification unit for notifying that the internal cleaning is necessary when the internal cleaning is determined to be necessary by the cleaning necessity determination unit;
Vacuum cleaner with The vacuum cleaner according to claim 1, wherein the pressure detection unit includes a pressure sensor provided at a position branched from the ventilation path via a small hole. The vacuum cleaner according to any one of claims 1 to 3 , wherein the pressure detection unit detects a pressure in the ventilation path between the intake port and the suction fan. The cleaning necessity determination unit, based on the average value of the plurality of pressure detection values respectively corresponding to the plurality of pressure detected by the pressure detecting unit, claims 1 to 4 for determining the necessity of the internal cleaning The vacuum cleaner as described in any one of . The vacuum cleaner according to any one of claims 1 to 5, wherein the cleaning necessity determination unit changes a threshold value to be compared with a difference between the detected pressure values according to a rotation speed of the motor. The vacuum cleaner according to any one of claims 1 to 6, wherein the cleaning necessity determination unit changes a threshold value to be compared with a difference between the pressure detection values according to a voltage value of the secondary battery.

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