DUST COLLECTOR

Abstract

A dust collector has a head and a tank located below the head. The head includes a suction cylinder into which a dust collection hose is inserted, a suction unit that generates suction at an intake opening of the suction cylinder, a motor, and a blower fan wheel that is rotated by a torque generated by the motor. It also includes a battery mounting bracket to which a battery pack is attached. At least one portion of the battery pack and the intake opening are oriented in the same top-to-bottom direction.

Description

TECHNICAL AREA The techniques revealed in these teachings relate to a dust collector. BACKGROUND In the technical field relating to a dust collector, a box-shaped dust collector is known here, as revealed in JP 7 200 036 B2. If a dust collector is enlarged, a user may have difficulty handling the dust collector. One non-restrictive task of the present teachings is to prevent the enlargement of a dust collector. BRIEF SUMMARY The above-mentioned problem is solved by a dust collector according to claim 1. In a non-restrictive aspect of the present teachings, a dust collector may have a head and a tank located below the head. The head may include a suction cylinder into which a dust collection hose can be inserted, a suction unit that generates suction at an intake opening of the suction cylinder and comprises a motor and a blower fan wheel that is rotated by a torque generated by the motor, and a battery mounting part to which a battery pack is removably attached. At least one portion of the battery pack and the intake opening may be located in the same position in an up-down direction. According to the present teachings, an enlargement of a dust collector can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view from the top right front, showing a dust collector according to one embodiment. Fig. 2 is a perspective view from the top left rear, showing the dust collector according to the embodiment. Fig. 3 is a perspective view from the top right front, showing the dust collector according to the embodiment. Fig. 4 is a front view, showing the dust collector according to the embodiment. Fig. 5 is a top view, showing the dust collector according to the embodiment. Fig. 6 is a perspective exploded view from the top right front, showing the dust collector according to the embodiment. Fig. 7 is a longitudinal cross-sectional view, showing the dust collector according to the embodiment. Fig. 8 is a transverse cross-sectional view, showing the dust collector according to the embodiment. Fig. 9 is a perspective bottom view, showing an engine cover according to the embodiment.Figure 10 is a longitudinal cross-sectional view showing the engine cover according to the embodiment. Figure 11 is an exploded longitudinal cross-sectional view showing the dust collector according to the embodiment. Figure 12 is a perspective view showing strut bearing ribs according to the embodiment. Figure 13 is a perspective view showing a strut and a portion of a dust collection container according to the embodiment. Figure 14 is a perspective view showing a lower surface of a tank cover according to the embodiment. Figure 15 is an enlarged perspective view of a portion of the lower surface of the tank cover according to the embodiment. Figure 16 is a perspective view showing a duct component according to the embodiment. Figure 17 is a view illustrating a method for attaching the strut to a strut holding mechanism according to the embodiment. DETAILED DESCRIPTION OF PREFERRED EXECUTION FORMS In one or more embodiments, a dust collector can have a head and a tank located below the head. The head can include a suction cylinder into which a dust collection hose is inserted (or can be inserted), a suction unit that generates suction at an intake opening of the suction cylinder and comprises a motor and a blower impeller that is rotated by a torque generated by the motor, and a battery mounting part to which a battery pack is (removably) attached. At least one portion of the battery pack and the intake opening can be located in the same position in an up-down direction. In the configuration described above, because at least one section of the battery pack, which is attached to the battery mounting area, and the suction cylinder's intake opening are located in the same position in the top-bottom direction, an increase in the size of the dust collector is prevented. Since the position of at least one section of the battery pack and the position of the intake opening are the same in the top-bottom direction, space is ensured for arranging another component besides the battery pack and the suction cylinder near the dust collector. That is, interference between the battery pack, the suction cylinder, and the other component is avoided. Therefore, an increase in the size of the dust collector is prevented. In one or more embodiments, the outer shape of the head can be long in a front-back direction. At least one area of ​​the battery pack and the intake opening can be located in the same position as the front-back direction. In the configuration described above, because at least one section of the battery pack attached to the battery mounting bracket and the suction cylinder's intake opening are located in the same position in the front-to-back direction, an increase in the size of the dust collector is prevented. Since the position of at least one section of the battery pack and the intake opening are the same in the front-to-back direction, space is ensured for arranging another component besides the battery pack and the suction cylinder near the dust collector. This means that interference between the battery pack, the suction cylinder, and the other component is avoided. Therefore, an increase in the size of the dust collector is prevented. In one or more embodiments, the outer shape of the head can be long in a front-to-back direction. The motor can be arranged between the battery pack and the intake opening in a left-to-right direction. In the configuration described above, the left-right orientation of the motor between the battery pack and the intake opening improves the dust collector's weight balance. This improved weight distribution enhances the dust collector's stability and portability during use. Furthermore, the different positions of the motor, battery pack, and intake opening in the left-right direction ensure sufficient space for an additional component besides the motor, battery pack, and suction cylinder. This avoids any discrepancy between the motor, battery pack, suction cylinder, and other components, thus preventing the dust collector from becoming too large. In one or more embodiments, the outer shape of the head can be long in a front-to-back direction. The motor can be located in a different position than the battery pack and the intake opening in the front-to-back direction. In the configuration described above, the motor's position away from the battery pack and intake opening in the front-to-back direction improves the dust collector's weight balance. This improved weight balance enhances the dust collector's stability and portability during use. The motor's distance from the battery pack and intake opening also provides space for other components besides the motor, battery pack, and suction cylinder. This prevents interference between the motor, battery pack, suction cylinder, and other components, thus avoiding an increase in the dust collector's size. Furthermore, the motor's distance from the intake opening reduces the accumulation of dust drawn in around the intake opening.Therefore, a deterioration in the dust collection performance of the dust collector is prevented. In one or more embodiments, the dust collector may have an actuating switch that is used to control the motor. At least one part of the actuating switch and the battery pack may be located in the same position in the up-down direction. At least one part of the actuating switch and the intake opening may be located in the same position in the up-down direction. In the configuration described above, because at least part of the actuation switch and the battery pack are in the same position in the top-bottom direction, and at least part of the actuation switch and the intake opening are in the same position in the top-bottom direction, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector can have a control unit that controls the motor. At least one area of ​​the control unit and the battery pack can be located in the same position in the up-down direction. At least one area of ​​the control unit and the intake opening can be located in the same position in the up-down direction. In the configuration described above, since at least one area of ​​the control unit and the battery pack are located in the same position in the top-bottom direction, and at least one area of ​​the control unit and the intake opening are located in the same position in the top-bottom direction, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector can have a control unit that controls the motor. At least one area of ​​the control unit and the battery pack can be located in the same position in the front-to-back direction. At least one area of ​​the control unit and the intake opening can be located in the same position in the front-to-back direction. In the configuration described above, since at least one area of ​​the control system and the battery pack are located in the same position in the front-back direction, and at least one area of ​​the control system and the intake opening are located in the same position in the front-back direction, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector may have an actuating switch that is used to control the motor. At least one section of the actuating switch may be located between the battery pack and the intake opening in the left-right direction. In the configuration described above, since at least part of the actuation switch is located between the battery pack and the intake opening in the left-right direction, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector can have a control unit that controls the motor. At least one part of the control unit can be arranged between the battery pack and the intake opening in the left-right direction. In the configuration described above, since at least one area of ​​the control system is located between the battery pack and the intake opening in the left-right direction, an enlargement of the dust collector is prevented. In one or more embodiments, the outer shape of the head can be long in the front-to-back direction. The battery pack and the intake opening can be arranged at the front of the center of the head in the front-to-back direction. In the configuration described above, because the battery pack is located at the front center of the head, a user can easily attach or remove the battery pack from the battery mounting bracket. Because the intake opening is also located at the front center of the head, the user can easily attach and remove the dust collection hose. In one or more embodiments, the dust collector may have an actuating switch that is used to control the motor. The actuating switch may be located at the front of the center of the head in the front-to-back direction. In the configuration described above, since the operating switch is located at the front of the center of the head, the user can easily operate the operating switch. In one or more embodiments, the dust collector may have a control unit that controls the motor. The control unit may be located at the front of the center of the head in the front-to-back direction. In the configuration described above, because the distance between the battery pack and the intake opening and the control unit is reduced, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector can have an actuating switch that is used to control the motor and a control unit that controls the motor. The actuating switch and the control unit can be located at the front of the center of the head in the front-to-back direction. The control unit can also be located behind the actuating switch. In the configuration described above, the reduced distance between the battery pack and the intake opening, as well as between the control unit and the operating switch, prevents the dust collector from enlarging. Because the operating switch is located on the front of the control unit, the user can easily operate it. In one or more embodiments, the battery pack can be arranged to the right of the center of the head in the left-right direction. In the configuration described above, since the battery pack is located to the right of the center of the head, the user can easily attach the battery pack to and remove the battery pack from the battery mounting part. In one or more embodiments, the intake opening can be arranged to the left of the center of the head in the left-right direction. In the configuration described above, since the intake opening is located to the left of the center of the head, the user can easily attach the dust collection hose to the intake opening and remove the dust collection hose from it. In one or more embodiments, the motor can be arranged behind the center of the head in the front-back direction. In the configuration described above, since the battery pack and the intake opening are located at the front of the center of the head, and the motor is located at the rear of the center of the head, the weight balance of the dust collector is improved in the front-back direction. In one or more embodiments, the motor can be arranged in a central area of ​​the head in the left-right direction. In the configuration described above, since the motor is located in the middle area of ​​the head in the left-right direction, the weight balance of the dust collector in the left-right direction is improved. In one or more embodiments, the dust collector may have a nozzle receptacle that accommodates a nozzle connected to the dust collection hose. The outer shape of the head may be long in the front-to-back direction. The nozzle receptacle may be located on one side of the motor and on the rear of the battery pack. In the configuration described above, since the nozzle mount is located on the side of the motor and at the rear of the battery pack, an enlargement of the dust collector is prevented. In one or more embodiments, the dust collector may have a hose receptacle that accommodates the dust collection hose. The hose receptacle may be located above the intake opening. In the configuration described above, because the hose connection is located above the intake opening, an enlargement of the dust collector can be prevented. An embodiment is described below with reference to the drawings. In this embodiment, the positional relationship of each component is described using the terms "front," "back," "left," "right," "top," and "bottom." These terms indicate relative positions or directions with respect to the center of a dust collector 1. dust collector Fig. 1 is a perspective view from the top right front, showing the dust collector 1 according to the embodiment. Fig. 2 is a perspective view from the top left rear, showing the dust collector 1 according to the embodiment. Fig. 3 is a perspective view from the top right front, showing the dust collector 1 according to the embodiment. Fig. 4 is a front view, showing the dust collector 1 according to the embodiment. Fig. 5 is a top view, showing the dust collector 1 according to the embodiment. Fig. 6 is a perspective exploded view from the top right front, showing the dust collector 1 according to the embodiment. Fig. 7 is a longitudinal cross-sectional view, showing the dust collector 1 according to the embodiment. Fig. 8 is a transverse cross-sectional view, showing the dust collector 1 according to the embodiment.Figure 3 represents the dust collector 1 when a battery cover 14, which will be described later, is open. In Figures 4 and 5, a dust collection tube 6 and the battery cover 14, which will be described later, are shown by virtual lines. Figure 7 corresponds to a cross-sectional view along line AA in Figure 1. Figure 8 corresponds to a cross-sectional view along line BB in Figure 1. In this embodiment, the dust collector 1 is suitable for both dry and wet applications and can draw in not only gas (air) but also liquid. Examples of gas include air. Examples of liquid include water. One external shape of the dust collector 1 is essentially a rectangular parallelepiped. The dust collector 1 is a box-shaped dust collector. The dust collector 1 comprises a head 2, a tank 3, a latch 5, a dust collection hose 6, a filter unit 8, and a float 9. The head 2 comprises a tank cover 4, which is provided with a suction cylinder 17, a top cover 13, a battery cover 14, a handle 15, a suction unit 7, a battery mounting part 10, a control unit 11, and an operating panel 12. Tank 3 stores at least dust or a liquid. Tank 3 is located below head 2. At least one section of tank 3 is located below tank cover 4. At least one section of tank cover 4 is located below upper cover 13. Tank cover 4 is located between upper cover 13 and tank 3. Both upper cover 13 and tank cover 4 can be attached to and removed from tank 3. Latches 5 secure head 2 and tank 3 together. Latches 5 are located on a left and a right section of tank 3. Tank cover 4 is sandwiched between head 2 and tank 3. The head 2 is located above the tank 3. An external shape of the head 2 is elongated in a front-to-back direction. A dimension of the head 2 in the front-to-back direction is larger than a dimension of the head 2 in a left-to-right direction. The upper cover 13 is arranged above the tank cover 4. The upper cover 13 is positioned such that it covers the tank cover 4 from above. The upper cover 13 is made of a synthetic resin. The upper cover 13 forms a receiving space within the tank cover 4. The control unit 11 and the suction unit 7 are arranged in the receiving space between the upper cover 13 and the tank cover 4. The actuating panel 12 is arranged in an opening 13A provided at a front area of ​​the upper cover 13. As shown in Fig. 3, a recess 13B is provided at a front area of ​​the upper cover 13. The battery mounting part 10 is arranged inside the recess 13B. A front right area on an upper surface of the tank cover 4 is located inside the recess 13B. The battery mounting part 10 is located on the upper surface of the tank cover 4 inside the recess 13B. The battery cover 14 covers the recess 13B. The battery cover 14 covers the battery mounting part 10. The battery cover 14 covers a battery pack 29 that is attached to the battery mounting part 10. The battery cover 14 is pivotally mounted by the upper cover 13. A rear end of an upper portion of the battery cover 14 is pivotally mounted by the upper cover 13. The pivot shaft of the battery cover 14 extends in the left-right direction. The battery cover 14 pivots about the pivot shaft of the battery cover 14, so that the battery cover 14 changes between a closed state, in which the recess 13B is closed, and an open state, in which the recess 13B is open. A front portion of the recess 13B is opened by the pivoting battery cover 14. The handle 15 is gripped by a user of the dust collector 1. The handle 15 is pivotally connected to the upper portion of the top cover 13. The pivot shaft of the handle 15 extends in the front-back direction. The handle 15 pivots around this pivot shaft, thus switching between an operating state in which the handle 15 projects upwards from an upper surface 13C of the top cover 13, and a stowed state in which the handle 15 is stowed in a stowage recess 13D provided in the upper portion of the top cover 13. When the handle 15 is in the operating state, the user can carry the dust collector 1 by gripping the handle 15. Tank 3 has a front plate, a rear plate, a left plate, a right plate, and a bottom plate. Tank 3 has an interior space for storing at least either dust or liquid. As shown in Fig. 6, an opening 3A is provided at one upper end of tank 3. The outer shape of tank 3 is long (elongated) in the front-to-back direction. One dimension of tank 3 in the front-to-back direction is larger than one dimension of tank 3 in the left-to-right direction. Tank 3 is made of a synthetic resin. The tank cover 4 is placed on the upper end of the tank 3. The tank cover 4 has a cover area 16, which is plate-shaped and covers the opening 3A at the upper end of the tank 3, and the suction cylinder 17, into which the dust collection hose 6 is inserted. The tank cover 4 is made of a synthetic resin. As shown in Fig. 7, a sealing element 18 is arranged on a circumferential edge of a lower surface of the cover area 16. The sealing element 18 seals a boundary between the tank 3 and the tank cover 4. When the tank cover 4 is placed on the upper end of the tank 3, the sealing element 18 is in contact with each of the lower surfaces of the cover area 16 and the upper end of the tank 3. The suction cylinder 17 draws in either dust or liquid. As shown in Fig. 6, the suction cylinder 17 is located at the front left of the tank cover 4. As shown in Fig. 4, the suction cylinder 17 is covered from above by the upper cover 13. As shown in Fig. 6, the suction cylinder 17 has a suction opening 19 and a channel 20 connected to the suction opening 19. The suction opening 19 is located at a front end of the suction cylinder 17. The suction opening 19 of the suction cylinder 17 faces forward. The suction opening 19 communicates with the interior of the tank 3 via the channel 20. The suction cylinder 17 is (will be) connected to the dust collection hose 6. The dust collection hose 6 is inserted into the suction cylinder 17 via the intake opening 19. As shown in Fig. 2, a connection 21A is provided at one end of the dust collection hose 6. The end of the dust collection hose 6 is connected to the suction cylinder 17 via the connection 21A. As shown in Fig. 2, the dust collection hose 6 is received in a hose receptacle 41, which is provided on a left-hand side of the upper cover 13. The hose receptacle 41 has bearing surfaces 13E on the upper cover 13 and retainers 23, which are provided on the respective bearing surfaces 13E. The bearing surfaces 13E are located on the left-hand side and the rear-hand side of the upper cover 13. The bearing surfaces 13E are located below the upper surface 13C and the storage recess 13D. The retainers 23 hold the dust collection hose 6 from below. When the dust collection hose 6 is held by the retainers 23, it is opposite the bearing surface 13E. When the dust collection hose 6 is held by the retainers 23, it is located below the upper surface 13C and the storage recess 13D. The dust collection hose 6 is connected to a nozzle 22. A connection 21B is provided at the tip end of the dust collection hose 6. The tip end of the dust collection hose 6 is connected to the nozzle 22 via the connection 21B. As shown in Fig. 1 and Fig. 2, in this embodiment the nozzle 22 has a first nozzle 22A and a second nozzle 22B. The nozzle 22 is received in a nozzle receptacle 42 provided on the upper cover 13. The nozzle receptacle 42 has a first nozzle receptacle 42A, which is provided on the left side of the upper cover 13, and a second nozzle receptacle 42B, which is provided on the right side of the upper cover 13. As shown in Fig. 2, the first nozzle 22A is received in the first nozzle receptacle 42A. The first nozzle receptacle 42A has a recess provided in the left side of the upper cover 13. The recess of the first nozzle receptacle 42A is defined by a projecting rib 13F, which is provided at a left end of the upper cover 13. The projecting rib 13F extends upward from the left end of the upper cover 13. As shown in Fig. 1, the second nozzle 22B is received in the second nozzle receptacle 42B.The second nozzle receptacle 42B has a recess provided on the right side of the upper cover 13. As shown in Figs. 6 and 7, the suction unit 7, the filter unit 8, the battery mounting part 10, and the control unit 11 are mounted on the tank cover 4. The suction unit 7, the battery mounting part 10, and the control unit 11 are arranged above an upper surface of the cover area 16 of the tank cover 4. The filter unit 8 is arranged below a lower surface of the tank cover 4. The suction unit 7 is located at the rear of the tank cover 4. The battery mounting part 10 and the control unit 11 are located at the front of the tank cover 4. The suction unit 7 generates a suction force at the intake opening 19 of the suction cylinder 17. As shown in Fig. 7, the suction unit 7 has a motor 24, a blower fan wheel 25, a motor housing 26 and a fan wheel cover 27. The motor 24 generates a torque to rotate the blower impeller 25. The motor 24 is a brushless internal rotor motor. The motor 24 has a stator 24A, a rotor 24B located inside the stator 24A, and a rotor shaft 24C fixed to the rotor 24B. An upper portion of the rotor shaft 24C projects upward from an upper end surface of the rotor 24B. A lower portion of the rotor shaft 24C projects downward from a lower end surface of the rotor 24B. The rotor 24B and the rotor shaft 24C rotate about a motor axis of rotation AX, which extends in an up-down direction. The blower impeller 25 rotates with the torque generated by the motor 24. The blower impeller 25 is fixed to the lower part of the rotor shaft 24C. The blower impeller 25 rotates due to the motor 24, which is driven to rotate the rotor shaft 24C. The motor housing 26 accommodates the motor 24. An upper end of the rotor shaft 24C is rotatably held by a bearing 43A. A lower end of the rotor shaft 24C is rotatably held by a bearing 43B. The bearing 43A and the bearing 43B are held by the motor housing 26. The fan wheel cover 27 accommodates the blower fan wheel 25. At least one section of the fan wheel cover 27 is located below the blower fan wheel 25. The motor housing 26 is located above the fan wheel cover 27. In this embodiment, a cooling fan wheel 44 is fixed to the rotor shaft 24C. The cooling fan wheel 44 is located between the lower end of the stator 24A and the bearing 43B. The cooling fan wheel 44 is rotated by the rotor shaft 24C. The cooling fan wheel 44 generates an airflow to cool the motor 24. The cooling fan wheel 44 is housed within the motor casing 26. The motor casing 26 has a motor air inlet and a motor air outlet. The motor air inlet is located at an upper end of the motor casing 26. The motor air outlet is located at a lower area of ​​a side surface of the motor casing 26. When the cooling fan wheel 44 rotates, gas (air) flows around the motor casing 26 and into an interior space within the motor casing 26 via the motor air inlet. The gas flowing into the interior of the engine housing 26 cools the engine 24. After the engine 24 has cooled, the gas is discharged to a circumference of the engine housing 26 via the engine air outlet. The blower impeller 25 generates a suction force at an air inlet 28, which is provided on a lower part of the impeller cover 27. The interior of the tank 3 is connected to the intake opening 19. The air inlet 28 is connected to the intake opening 19 via the filter unit 8 and the interior of the tank 3. As the blower impeller 25 rotates, a suction force is generated at the intake opening 19 via the air inlet 28, the filter unit 8, and the interior of the tank 3. The air drawn in through the intake opening 19 passes through the interior of the tank 3 and the filter unit 8 and then flows into the air inlet 28 of the intake unit 7. Dust or liquid drawn in through the intake opening 19 is stored in the interior of the tank 3. The head 2 has an engine cover 50 that covers the suction unit 7. The engine cover 50 is positioned in the receiving space between the upper cover 13 and the tank cover 4 such that it covers the suction unit 7 from above. The engine cover 50 covers the engine housing 26 and the fan wheel cover 27. Air from the blower fan 25 and air from the cooling fan 44 flows between the engine housing 26 and the engine cover 50. The air from the blower fan 25 and the air from the cooling fan 44 flows inside the engine cover 50 and is then discharged by an air outlet 51 provided at a rear area of ​​the engine cover 50. As shown in Fig. 2, an opening 13G is provided on a rear surface of the upper cover 13. The air outlet 51 is located inside the opening 13G. Air that is discharged from the air outlet 51 is directed to the outside of the dust collector 1. The filter unit 8 collects dust from the air flowing into the air inlet 28 of the suction unit 7. The filter unit 8 is located inside the tank 3 and is supported by the tank cover 4. The filter unit 8 has a cylindrical shape with a base. The filter unit 8 is supported by the tank cover 4 such that the interior of the filter unit 8 and the air inlet 28 are connected. As shown in Fig. 7, the float 9 is located inside the interior of the filter unit 8. The battery mounting part 10 is connected to the battery pack 29. The battery pack 29 is attached to the battery mounting part 10. As shown in Fig. 3 and Fig. 6, the battery mounting part 10 is located on the upper surface of the cover area 16 of the tank cover 4. The battery mounting part 10 is located on a front right area of ​​the upper surface of the cover area 16. As shown in Fig. 3, the battery mounting part 10 has a pair of guide rails 10A and a plurality of terminals arranged between the pair of guide rails 10A. The guide rails 10A extend in the front-back direction. The pair of guide rails 10A is arranged with a gap between them in the left-right direction. The battery pack 29 is attached to and removed from the battery mounting part 10. The battery pack 29 supplies power to the motor 24 while attached to the battery mounting part 10. Furthermore, the battery pack 29 supplies power to an electrical device mounted on the dust collector 1. The battery pack 29 is a general-purpose battery that can be used as a power source for various electrical devices. The battery pack 29 can be used as a power source for a power tool. The battery pack 29 can be used as a power source for an electrical device other than a power tool. The battery pack 29 can be used as a power source for a dust collector that is different from the dust collector 1 according to the embodiment. The battery pack 29 comprises a lithium-ion battery.The battery pack 29 is a rechargeable battery. The battery mounting part 10 has a structure equivalent to that of a battery mounting part of the power tool. The user of the dust collector 1 can attach the battery pack 29 to the battery mounting part 10 and remove the battery pack 29 from the battery mounting part 10. The user can attach the battery pack 29 to the battery mounting part 10 by inserting it into the battery mounting part 10 from the front of the battery mounting part 10. The battery pack 29 is inserted into the battery mounting part 10 by moving it backward as it is guided by the guide rails 10A. When the battery pack 29 is attached to the battery mounting part 10, the terminals of the battery pack 29 and the terminals of the battery mounting part 10 are electrically connected. The user of the dust collector 1 can remove the battery pack 29 from the battery mounting part 10 by moving the battery pack 29 forward away from the battery mounting part 10. The controller 11 controls the motor 24. The controller 11 includes a control circuit board. The control circuit board includes a microcomputer and a switching element for controlling the motor 24. An external shape of the controller 11 is essentially a rectangular parallelepiped. As shown in Fig. 8, an upper region of the controller 11 is supported by a pair of bearing ribs 13H provided on the upper cover 13. The bearing ribs 13H project downward from a ceiling surface inside the upper cover 13. The pair of bearing ribs 13H supports a front region and a rear region of the controller 11. As shown in Fig. 6, a lower region of the controller 11 is supported by a pair of bearing ribs 16A provided on the cover region 16. The bearing ribs 16A project upward from the upper surface of the cover region 16.The pair of bearing ribs 16A supports a front area and a rear area of ​​the control 11. The actuating panel 12 is arranged on a front surface of the head 2. The actuating panel 12 has an actuating switch 12A and an actuating switch 12B. The actuating panel 12 supports each of the actuating switch 12A and the actuating switch 12B. The actuating panel 12 is long in the top-bottom direction. The actuating switch 12A is arranged above the actuating switch 12B. Each of the actuating switch 12A and the actuating switch 12B is actuated to control the motor 24. The actuating switch 12A is actuated to switch between driving and stopping the motor 24. The actuating switch 12B is actuated to set a speed of the motor 24. Each of the actuating switch 12A and the actuating switch 12B is actuated to rotate the motor. An activation signal is generated when the user activates at least either the activation switch 12A or the activation switch 12B.The actuation signal is transmitted to the control unit 11. The control unit 11 switches between driving and stopping the motor 24 based on the actuation signal from the actuation switch 12A. The control unit 11 sets the speed of the motor 24 based on the actuation signal from the actuation switch 12B. By setting the speed of the motor 24, the suction force generated at the intake opening 19 is adjusted. If the speed of the motor 24 increases, the suction force generated at the intake opening 19 is increased. If the speed of the motor 24 decreases, the suction force generated at the intake opening 19 is decreased. Positional Relationship between Battery Pack, Intake Opening, Motor, Control Unit, and Actuating Switch The following describes the positional relationship between the battery pack 29, the intake opening 19, the motor 24, the control unit 11, and the actuating switch 12A. The battery pack 29 is attached to the battery mounting part 10, which is provided on the tank cover 4. In the following description, a position of the battery pack 29 refers to a position of the battery pack 29 in a state when attached to the battery mounting part 10. As shown in Fig. 4, at least one region of the battery pack 29 and the intake opening 19 are located in the same position in the top-bottom direction. That is, the position of at least one region of the battery pack 29 and the position of the intake opening 19 are the same in the top-bottom direction. In this embodiment, an upper end 19T of the intake opening 19 is arranged below an upper end 29T of the battery pack 29. A lower end 19B of the intake opening 19 is arranged above a lower end 29B of the battery pack 29. As shown in Fig. 5, at least one region of the battery pack 29 and the intake opening 19 are located in the same position in the front-to-back direction. That is, the position of at least one region of the battery pack 29 and the position of the intake opening 19 are the same in the front-to-back direction. In this embodiment, the intake opening 19 is located at the rear of a front end 29F of the battery pack 29. The intake opening 19 is located at the front of the rear end 29R of the battery pack 29. The battery pack 29 is positioned differently from the intake opening 19 in the left-right direction. That is, the positions of the battery pack 29 and the intake opening 19 are different in the left-right direction. The battery pack 29 and the intake opening 19 are spaced apart from each other in the left-right direction. The battery pack 29 is located to the right of the center of the head 2 (upper cover 13) in the left-right direction. The intake opening 19 is located to the left of the center of the head 2 (upper cover 13) in the left-right direction. Each of the battery pack 29 and the intake opening 19 is located at the front of the center of the head 2 (upper cover 13) in the front-back direction. As shown in Figs. 7 and 8, the motor 24 is located behind the center of the head 2 (upper cover 13) in the front-to-back direction. As shown in Fig. 8, the motor 24 is located in a central region of the head 2 (upper cover 13) in the left-to-right direction. The position of the motor's axis of rotation AX can coincide with the position of the center of the head 2 (upper cover 13) in the left-to-right direction. As shown in Fig. 8, the motor 24 is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. The motor 24 is located in a different position than the battery pack 29 and the intake opening 19 in the left-right direction. That is, the position of the motor 24 differs from the position of the battery pack 29 and the position of the intake opening 19 in the left-right direction. A left end 24L of the motor 24 is located to the right of a right end 19N of the intake opening 19. A right end 24N of the motor 24 is located to the left of a left end 29L of the battery pack 29. Motor 24 is located in a different position than battery pack 29 and intake opening 19 in the front-to-back direction. That is, the position of motor 24 differs from the position of battery pack 29 and intake opening 19 in the front-to-back direction. Motor 24 is spaced apart from battery pack 29 and intake opening 19 in the front-to-back direction. Motor 24 is located behind battery pack 29 and intake opening 19. As shown in Fig. 8, on a plane perpendicular to the motor axis of rotation AX, the outer shape of the control unit 11 is rectangular and long in the front-back direction. As shown in Fig. 4, on a plane parallel to a motor axis of rotation AX and perpendicular to the direction in which the battery pack 29 is inserted, the outer shape of the control unit 11 is long in the top-bottom direction. As shown in Fig. 8, the control unit 11 is arranged at the front of the center of the head 2 (upper cover 13) in the front-to-back direction. At least one section of the control unit 11 and the battery pack 29 are located in the same position in the front-to-back direction. Furthermore, at least one section of the control unit 11 and the intake opening 19 are located in the same position in the front-to-back direction. That is, the position of at least one section of the control unit 11 and the position of the battery pack 29 are the same in the front-to-back direction. In this embodiment, the intake opening 19 is located at the rear of a front end 11F of the control unit 11 and at the front of a rear end 11R of the control unit 11.The front end 11F of the controller 11 is located behind the front end 29F of the battery pack 29. The rear end 11R of the controller 11 is located in front of a rear end 29R of the battery pack 29. As shown in Fig. 8, the control unit 11 is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. The control unit 11 is located at a different position than the battery pack 29 and the intake opening 19 in the left-right direction. That is, one position of the control unit 11 is different from the position of the battery pack 29 and the position of the intake opening 19 in the left-right direction. A left end 11L of the control unit 11 is located on the right side of the right end 19N of the intake opening 19. A right end 11N of the control unit 11 is located on the left side of the left end 29L of the battery pack 29. As shown in Fig. 4, at least one region of the control unit 11 and the battery pack 29 are located in the same position in the up-down direction. Furthermore, at least one region of the control unit 11 and the intake opening 19 are located in the same position in the up-down direction. That is, the position of at least one region of the control unit 11 and the position of the battery pack 29 are the same in the up-down direction. In this embodiment, an upper end 11T of the control unit 11 is arranged downwards from an upper end 29T of the battery pack 29. A lower end 11B of the control unit 11 is arranged downwards from the lower end 29B of the battery pack 29. The upper end 11T of the control 11 is arranged upwards from the upper end 19T of the intake opening 19.The lower end 11B of the control 11 is arranged downwards from the lower end 19B of the intake opening 19. Each of the actuating switches 12A and 12B is located at the front of the center of the head 2 (upper cover 13) in the front-to-back direction. Each of the actuating switches 12A and 12B is located at a front end of the upper cover 13 of the head 2. As shown in Fig. 4, at least one section of the actuating switch 12B and the battery pack 29 are located in the same position in the up-down direction. Furthermore, at least one section of the actuating switch 12B and the intake opening 19 are located in the same position in the up-down direction. The actuating panel 12 is arranged in the up-down direction at the central area of ​​the head 2 (upper cover 13). At least one section of the actuating panel 12 and the battery pack 29 are located in the same position in the up-down direction. Furthermore, at least one section of the actuating panel 12 and the intake opening 19 are located in the same position in the up-down direction. That is, the position of at least one section of the actuating panel 12 and the position of the battery pack 29 are the same in the up-down direction.Furthermore, the position of at least one area of ​​the actuating panel 12 and the position of the intake opening 19 are the same in the top-bottom direction. In this embodiment, an upper end 12T of the actuating panel 12 is arranged downwards from the upper end 29T of the battery pack 29. A lower end 12U of the actuating panel 12 is arranged upwards from the lower end 29B of the battery pack 29. The upper end 12T of the actuating panel 12 is arranged upwards from the lower end 19T of the intake opening 19. The lower end 12U of the actuating panel 12 is arranged upwards from the lower end 19B of the intake opening 19. At least one section of the actuating switch 12A is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. At least one section of the actuating switch 12B is also arranged between the battery pack 29 and the intake opening 19 in the left-right direction. As shown in Fig. 8, the actuating panel 12, which includes the actuating switch 12A and the actuating switch 12B, is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. The actuating panel 12 is positioned differently from the battery pack 29 and the intake opening 19 in the left-right direction. That is, one position of the actuating panel 12 differs from the position of the battery pack 29 and the position of the intake opening 19 in the left-right direction. A left end 12L of the actuating panel 12 is arranged to the right of the right end 19N of the intake opening 19.A right end 12N of the actuating panel 12 is to the left of the left end 29L of the battery pack 29. The actuating panel 12, which includes the actuating switch 12A and the actuating switch 12B, is arranged at the front of the center of the head 2 (upper cover 13) in the front-to-back direction. The control unit 11 is also arranged at the front of the center of the head 2 (upper cover 13) in the front-to-back direction. The control unit 11 is located at the rear of the actuating panel 12, which includes the actuating switch 12A and the actuating switch 12B, in the front-to-back direction. The nozzle receptacle 42 is provided on one side of the motor 24 and at the rear of the battery pack 29. As shown in Fig. 8, the first nozzle receptacle 42A is provided on the left side of the motor 24 and at the rear of the battery pack 29. The second nozzle receptacle 42B is provided on the right side of the motor 24 and at the rear of the battery pack 29. As shown in Fig. 4, the hose receptacle 41 is arranged above the intake opening 19. At least one portion of the hose receptacle 41 and the intake opening 19 are located in the same position in the left-right direction. The position of at least one portion of the hose receptacle 41 and the position of the intake opening 19 are the same in the left-right direction. Engine cover Fig. 9 is a perspective bottom view showing the engine cover 50 according to the embodiment. Fig. 10 is a longitudinal cross-sectional view showing the engine cover 50 according to the embodiment. Fig. 10 corresponds to a cross-sectional view along a line CC in Fig. 9. As shown in Fig. 8, Fig. 9, and Fig. 10, the engine cover 50 has an inner cylinder part 55 arranged around the engine housing 26 and an outer cylinder part 56 arranged outside the inner cylinder part 55 in a radial direction to the engine's axis of rotation AX. An air duct 52 is formed between the inner cylinder part 55 and the outer cylinder part 56. The air from the blower fan wheel 25 and the air from the cooling fan wheel 44 flow into the channel 52 via an inlet 53, which is provided in an area of ​​the inner cylinder part 55, flow through the channel 52 and are then discharged from the air outlet 51.The channel 52 is designed to surround the motor housing 26. The channel 52 is essentially designed to encircle the motor housing 26. Since the length of the channel 52 is considerable, noise generation due to airflow is reduced. As shown in Fig. 8, a sound-absorbing component 54 is arranged in the channel 52. The sound-absorbing component 54 is a porous component, such as a sponge. The sound-absorbing component 54 effectively reduces noise generation. As shown in Fig. 9, the ceiling surface 57 of the duct 52 has a plurality of areas with different heights. The ceiling surface 57 has at least a first area 57A with a first height and a second area 57B with a second height that is lower than the first height. It is noted that at least three areas with different heights can be provided on the ceiling surface 57. The different heights of the ceiling surface 57 vary the cross-sectional area of ​​the duct 52. The variation in the cross-sectional area of ​​the duct 52 reduces noise generation due to airflow. As shown in Figures 9 and 10, a guide vane 58 is provided in the duct 52 near the air outlet 51. The guide vane 58 projects downwards from the ceiling surface 57 of the duct 52. A plurality of flow guide vanes 59 are provided at the air outlet 51. The flow guide vanes 59 have a rod shape with a curved section. The flow guide vane 59 directs the airflow such that the air discharged from the air outlet 51 flows horizontally. If the air discharged from the air outlet 51 flows downwards, dust present on a surface to be cleaned can be stirred up by the force of the air. The flow guide vane 59 prevents dust from being stirred up on the surface to be cleaned. Dust collection container and strut Fig. 11 is an exploded longitudinal cross-sectional view showing the dust collector 1 according to the embodiment. Fig. 11 is a longitudinal cross-sectional view passing through the channel 20 of the suction cylinder 17. As shown in Fig. 11, a channel component 30 is fixed to the lower surface of the tank cover 4. The channel component 30 has an inlet cylinder 31 connected to the suction cylinder 17 and a flange 32 provided on an upper portion of the inlet cylinder 31. The inlet cylinder 31 and the flange 32 form a single component. The flange 32 is fixed to the cover area 16 of the tank cover 4 by screws. Air drawn in through the intake opening 19 and flowing through the channel 20 flows into the interior of the tank 3 via the inlet cylinder 31. In this embodiment, a dust collection container (dust collection bag) 60 can be attached to the inlet cylinder 31. The dust collection container 60 is arranged inside the tank 3. The dust collection container 60 is attached to at least one area of ​​the tank 3 by means of a strut (brace, suspension) 70. The dust collection container 60 is located at the front of the filter unit 8. Fig. 12 is a perspective view showing strut bearing ribs 3B according to the embodiment. The strut bearing ribs 3B support the strut 70. As shown in Fig. 6 and Fig. 12, the strut bearing ribs 3B are provided on an inner surface of the tank 3. In this embodiment, the strut bearing ribs 3B are provided on an upper region of a left inner surface of the tank 3, facing to the right. The strut bearing ribs 3B project to the right from the left inner surface of the tank 3. The strut bearing ribs 3B are provided on the front side of the filter unit 8. Two strut bearing ribs 3B are provided with a gap between them in the front-back direction. Each of the strut bearing ribs 3B has an annular shape. A notch 3C is provided at one left end of each of the strut bearing ribs 3B. A hook 3D is provided on the left inner surface of the tank 3. The hook 3D is located between the pair of strut bearing ribs 3B. The hook 3D projects to the right from the left inner surface of the tank 3. The projection of the hook 3D from the left inner surface of the tank 3 is less than the projection of the strut bearing ribs 3B. Fig. 13 is a perspective view showing the strut 70 in a region of the dust collection container 60 according to the embodiment. Projections for insertion into the strut bearing ribs 3B are provided on a lower surface of the strut 70. Furthermore, a resin spring 71, which is to be hooked onto the hook 3D, is provided at a left end of the strut 70. The strut 70 has insertion areas 72 into which a base plate 61 of the dust collection container 60 is inserted. The base plate 61 is inserted into the insertion areas 72 and is pressed by a pair of springs 73 of the strut 70. An inlet 62 is provided in the central area of ​​the base plate 61. The inlet 62 is connected to the inlet cylinder 31. The strut 70 has a recess 74 that has an arc shape along the inlet 62. Strut holding mechanism Fig. 14 is a perspective view showing the lower surface of the tank cover 4 according to the embodiment. Fig. 15 is an enlarged perspective view of a region of the lower surface of the tank cover 4 according to the embodiment. Fig. 15 corresponds to an enlarged view of a region of Fig. 14. As described above, the channel component 30 is fixed to the lower surface of the cover area 16 of the tank cover 4. The channel component 30 has the inlet cylinder 31 and the flange 32, which is provided on the lower region of the inlet cylinder 31. The flange 32 is fixed to the cover area 16 by screws 33. The channel component 30 has a strut retention mechanism 34 that holds the strut 70. The strut retention mechanism 34 is provided on a lower surface of the flange 32. When the dust collection container 60 is not in use, the strut 70 is held by the strut retention mechanism 34. The strut 70 is held by the strut retention mechanism 34 such that the inlet cylinder 31 is located inside the recess 74. Fig. 16 is a perspective view showing the channel component 30 according to the embodiment. The strut retaining mechanism 34 has a pair of hooks 35 provided on a front region of the flange 32 and a hook 36 provided on a rear region of the flange 32. The pair of hooks 35 is arranged in a left-right direction. The hooks 35 are inserted into the insertion areas 72 of the strut 70. The resin spring 71 is hooked onto the hook 36. Fig. 17 is a view illustrating a method for attaching the strut 70 to the strut holding mechanism 34 according to the embodiment. As shown in Fig. 17, when attaching the strut 70 to the strut holding mechanism 34, the user moves the strut 70 from the rear to the front of the hooks 35 so that the hooks 35 are inserted into the insertion areas 72 of the strut 70. After the hooks 35 are inserted into the insertion areas 72, the user brings a rear end of the strut 70 close to the hook 36 so that the resin spring 71 engages with the hook 36. When the resin spring 71 is engaged with the hook 36 and the hooks 35 are inserted into the insertion areas 72, the strut 70 is attached to the strut holding mechanism 34. Operation To clean using the dust collector 1, the user activates the operating switch 12A to drive the motor 24. When the motor 24 is driven, the blower fan wheel 25 rotates. When the blower fan wheel 25 rotates, a suction force is generated at the intake opening 19. When dry cleaning is performed, air is drawn into the intake opening 19 via the dust collection hose 6. The air drawn into the intake opening 19 flows into the interior of the tank 3 via the suction cylinder 17 and the inlet cylinder 31. At least some of the air flowing into the interior of the tank 3 passes through the filter unit 8 and enters its interior. Dust contained in the air is collected in the filter unit 8. The air flowing into the interior of the filter unit 8 then flows into the interior of the fan wheel cover 27 via the air inlet 28. The air that has flowed through the air inlet 28 in the interior of the fan wheel cover 27 passes through the duct 52 of the motor cover 50 and is then discharged by the air outlet 51. When wet cleaning is performed, liquid is drawn into the intake opening 19 via the dust collection hose 6. The liquid drawn into the intake opening 19 flows into the interior of the tank 3 via the suction cylinder 17 and the inlet cylinder 31. At least some of the liquid flowing into the interior of the tank 3 is stored in the tank 3. At least some of the liquid flowing into the interior of the tank 3 passes through the filter unit 8 and flows into the interior of the filter unit 8. The float 9 is located in the interior of the filter unit 8. The float 9 can float on the liquid. When the liquid flows into the interior of the filter unit 8, the float 9 moves upwards, thus closing the air inlet 28 of the suction unit 7.When the float 9 moves to the air inlet 28 of the intake unit 7 and closes the air inlet 28, this prevents liquid from flowing into the interior of the fan wheel cover 27 and into the interior of the motor housing 26. This prevents liquid from entering the motor 24. Effects As described above, in this embodiment of the dust collector 1, the head 2 comprises the head 2 and the tank 3, which is arranged below the head 2. The head 2 includes the suction cylinder 17, into which the dust collection hose 6 is inserted, the suction unit 7, which generates suction at the intake opening 19 of the suction cylinder 17 and comprises the motor 24 and the blower fan wheel 25, which is rotated by a torque generated by the motor 24, and the battery mounting part 10, to which the battery pack 29 is attached. At least one portion of the battery pack 29 and the intake opening 19 are located in the same position in the top-bottom direction. In the configuration described above, because at least one section of the battery pack 29, which is attached to the battery mounting part 10, and the intake opening 19 of the suction cylinder 17 are located in the same position in the top-bottom direction, an increase in the size of the dust collector 1 is prevented. Since the position of at least one section of the battery pack 29 and the position of the intake opening 19 are the same in the top-bottom direction, space is ensured for arranging another component besides the battery pack 29 and the suction cylinder 17 at the dust collector 1. That is, interference between the battery pack 29, the suction cylinder 17, and the other component is avoided. Therefore, an increase in the size of the dust collector 1 is prevented. In this embodiment, the head 2 is elongated in the front-back direction. At least one area of ​​the battery pack 29 and the intake opening 19 are located in the same position in the front-back direction. In the configuration described above, because at least one section of the battery pack 29, which is attached to the battery mounting part 10, and the intake opening 19 of the suction cylinder 17 are located in the same position in the front-back direction, an increase in the size of the dust collector 1 is prevented. Since the position of at least one section of the battery pack 29 and the position of the intake opening 19 are the same in the front-back direction, space is ensured for arranging another component besides the battery pack 29 and the suction cylinder 17 at the dust collector 1. That is, interference between the battery pack 29, the suction cylinder 17, and the other component is avoided. Therefore, an increase in the size of the dust collector 1 is prevented. In this embodiment, the outer shape of the head 2 is long in the front-back direction. The motor 24 is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. In the configuration described above, the left-right orientation of the motor 24 between the battery pack 29 and the intake opening 19 improves the weight balance of the dust collector 1. This improved weight balance enhances the stability and portability of the dust collector 1 during use. Since the positions of the motor 24, the battery pack 29, and the intake opening 19 are staggered in the left-right direction, space is provided for the placement of an additional component besides the motor 24, the battery pack 29, and the suction cylinder 17 within the dust collector 1. This prevents interference between the motor 24, the battery pack 29, the suction cylinder 17, and the other component, thus avoiding an increase in the size of the dust collector 1. In this embodiment, the outer shape of the head 2 is long in the front-back direction. The motor 24 is located in a different position than the battery pack 29 and the intake opening 19 in the front-back direction. In the configuration described above, the front-to-back position of the motor 24 away from the battery pack 29 and the intake opening 19 improves the weight balance of the dust collector 1. This improved weight balance enhances the stability and portability of the dust collector 1 during use. Furthermore, the distance between the motor 24 and the battery pack 29 and the intake opening 19 provides space for arranging an additional component besides the motor 24, the battery pack 29, and the intake cylinder 17 within the dust collector 1. This prevents interference between the motor 24, the battery pack 29, the intake cylinder 17, and the other component. Therefore, the size of the dust collector 1 does not need to be increased.Since the motor 24 is located away from the intake opening 19, the accumulation of dust drawn in through the intake opening 19 is reduced in the vicinity of the intake opening 19. Therefore, a decrease in the dust collection performance of the dust collector 1 is prevented. In this embodiment, the dust collector 1 has the actuating switch 12B, which is actuated to control the motor 24. At least one section of the actuating switch 12B and the battery pack 29 are located in the same position in the up-down direction. At least one section of the actuating switch 12B and the intake opening 19 are located in the same position in the up-down direction. In the configuration described above, since at least one area of ​​the actuating switch 12B and the battery pack 29 are in the same position in the top-bottom direction, and at least one area of ​​the actuating switch 12B and the suction opening 19 are in the same position in the top-bottom direction, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 includes the control unit 11, which controls the motor 24. At least one section of the control unit 11 and the battery pack 29 are located in the same position in the up-down direction. At least one section of the control unit 11 and the intake opening 19 are located in the same position in the up-down direction. In the configuration described above, since at least one area of ​​the control unit 11 and the battery pack 29 are located in the same position in the top-bottom direction, and at least one area of ​​the control unit 11 and the intake opening 19 are located in the same position in the top-bottom direction, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 includes the control unit 11, which controls the motor 24. At least one section of the control unit 11 and the battery pack 29 are located in the same position in the front-back direction. At least one section of the control unit 11 and the intake opening 19 are located in the same position in the front-back direction. In the configuration described above, since at least one area of ​​the control unit 11 and the battery pack 29 are located in the same position in the front-back direction, and at least one area of ​​the control unit 11 and the intake opening 19 are located in the same position in the front-back direction, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 has the actuating switch 12A and the actuating switch 12B, which are actuated to control the motor 24. The actuating switch 12A and the actuating switch 12B are arranged between the battery pack 29 and the intake opening 19 in the left-right direction. In the configuration described above, since the actuating switch 12A and the actuating switch 12B are arranged between the battery pack 29 and the intake opening 19 in the left-right direction, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 includes the control unit 11, which controls the motor 24. The control unit 11 is arranged between the battery pack 29 and the intake opening 19 in the left-right direction. In the configuration described above, since the control unit 11 is arranged between the battery pack 29 and the intake opening 19 in the left-right direction, an enlargement of the dust collector 1 is prevented. In this embodiment, the outer form of the head 2 is long in the front-back direction. The battery pack 29 and the intake opening 19 are arranged at the front of the center of the head 2 in the front-back direction. In the embodiment described above, since the battery pack 29 is located at the front of the center of the head 2, the user can easily attach the battery pack 29 to and remove it from the battery mounting part 10. Since the intake opening 19 is also located at the front of the center of the head 2, the user can easily attach the dust collection hose 6 to and remove it from the intake opening 19. In the embodiment described above, the dust collector 1 has the actuating switch 12A and the actuating switch 12B, which are actuated to control the motor 24. The actuating switch 12A and the actuating switch 12B are arranged on the front side of the center of the head 2 in the front-to-back direction. In the configuration described above, since the actuating switch 12A and the actuating switch 12B are located at the front of the center of the head 2, the user can easily actuate the actuating switch 12A and the actuating switch 12B. In this embodiment, the dust collector 1 has the control unit 11, which controls the motor 24. The control unit 11 is arranged at the front of the center of the head 2 in the front-to-back direction. In the configuration described above, because the distance between the battery pack 29 and the intake opening 19 and the control unit 11 is reduced, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 comprises the actuating switch 12A and the actuating switch 12B, which are actuated to control the motor 24, and the control unit 11, which controls the motor 24. The actuating switch 12A, the actuating switch 12B, and the control unit 11 are arranged at the front of the center of the head 2 in the front-to-back direction. The control unit 11 is arranged behind the actuating switch 12A and the actuating switch 12B. In the configuration described above, the reduced distance between the battery pack 29 and the intake opening 19, as well as between the control unit 11, the actuating switch 12A, and the actuating switch 12B, prevents the dust collector 1 from enlarging. Since the actuating switch 12A and the actuating switch 12B are located on the front of the control unit 11, a user can easily operate them. In this embodiment, the battery pack 29 is arranged to the right of the center of the head 2 in the left-right direction. In the configuration described above, since the battery pack 29 is located to the right of the center of the head 2, the user can easily attach the battery pack 29 to the battery mounting part 10 and remove the battery pack 29 from it. In this embodiment, the intake opening 19 is arranged to the left of the center of the head 2 in the left-right direction. In the configuration described above, since the intake opening 19 is located to the left of the center of the head 2, the user can easily attach the dust collection hose 6 to the intake opening 19 and remove the dust collection hose 6 from it. In this embodiment, the motor 24 is arranged at the rear of the center of the head 2 in the front-back direction. In the configuration described above, since the battery pack 29 and the intake opening 19 are located at the front of the center of the head 2, and the motor 24 is located at the rear of the center of the head 2, the weight balance of the dust collector 1 in the front-back direction is improved. In this embodiment, the motor 24 is arranged in the middle area of ​​the head 2 in the left-right direction. In the configuration described above, since the motor 24 is located in the middle area of ​​the head 2 in the left-right direction, the weight balance of the dust collector 1 in the left-right direction is improved. In this embodiment, the dust collector 1 has a nozzle receptacle 42 that receives the nozzle 22, which is connected to the dust collection hose 6. The outer shape of the head 2 is long in the front-to-back direction. The nozzle receptacle 42 is located on one side of the motor 24 and on the rear side of the battery pack 29. In the configuration described above, since the nozzle receptacle 42 is provided on the side of the motor 24 and on the rear of the battery pack 29, an enlargement of the dust collector 1 is prevented. In this embodiment, the dust collector 1 has a hose receptacle 41 that receives the dust collection hose 6. The hose receptacle 41 is arranged above the intake opening 19. In the configuration described above, since the hose receptacle 41 is located above the intake opening 19, an enlargement of the dust collector 1 is prevented. Other embodiments In the embodiment described above, the suction cylinder 17 is provided on the tank cover 4. The suction cylinder 17 can, for example, be provided on the upper cover 13. In the embodiment described above, the battery mounting part 10 is provided on the tank cover 4. The battery mounting part 10 can, for example, be provided on the upper cover 13. Although the invention has been described with regard to a complete and unambiguous disclosure in respect of certain embodiments, the attached claims are not to be regarded as limiting, but are to be interpreted as encompassing all modifications and alternative constructions that a person skilled in the art might consider and which appropriately fall within the basic teaching set forth herein. It is explicitly emphasized that all features disclosed in the description and / or the claims are to be considered separate and independent of one another for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, irrespective of the combinations of features in the embodiments and / or the claims. It is explicitly stated that all range specifications or specifications of groups of units disclose every possible intermediate value or subgroup of units for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, in particular also as a boundary of a range specification. QUOTES INCLUDED IN THE DESCRIPTION This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature JP 7 200 036 B2

[0002]

Claims

Dust collector, with a head, and a tank located below the head, wherein the head includes a suction cylinder into which a dust collection hose is inserted, a suction unit which generates a suction force at an intake opening of the suction cylinder, wherein the suction unit has a motor and a blower fan wheel which is rotated with a torque generated by the motor, and a battery mounting part to which a battery pack is removably attached, and at least a portion of the battery pack and the intake opening are in the same position in an up-down direction. Dust collector according to claim 1, wherein an outer shape of the head is long in a front-back direction, and at least a region of the battery pack and the intake opening are located in the same position in the front-back direction. Dust collector according to claim 2, further comprising a control unit that controls the motor, wherein at least one area of ​​the control unit and the battery pack are located in the same position in the front-back direction, and at least one area of ​​the control unit and the intake opening are located in the same position in the front-back direction. Dust collector according to claim 1, 2 or 3, wherein the outer shape of the head is long in a front-back direction, and the motor is arranged between the battery pack and the intake opening in a left-right direction. Dust collector according to claim 4, further comprising an actuating switch which is actuated to control the motor, wherein at least a portion of the actuating switch is arranged between the battery pack and the intake opening in the left-right direction. Dust collector according to claim 4 or 5, further comprising a control unit that controls the motor, wherein at least one area of ​​the control unit is arranged between the battery pack and the intake opening in the left-right direction. Dust collector according to one of claims 1 to 6, wherein the outer shape of the head is long in a front-back direction, and the motor is located in a different position than the battery pack and the intake opening in the front-back direction. Dust collector according to one of claims 1 to 7, further comprising an actuating switch which is actuated to control the motor, wherein at least an area of ​​the actuating switch and the battery pack are located in the same position in the top-bottom direction, and at least an area of ​​the actuating switch and the intake opening are located in the same position in the top-bottom direction. Dust collector according to one of claims 1 to 8, further comprising a control unit that controls the motor, wherein at least one area of ​​the control unit and the battery pack are located in the same position in the top-bottom direction, and at least one area of ​​the control unit and the intake opening are located in the same position in the top-bottom direction. Dust collector according to one of claims 1 to 9, wherein the outer shape of the head is long in a front-back direction, and the battery pack and the intake opening are arranged at the front of a center of the head in the front-back direction. Dust collector according to claim 10, further comprising an actuating switch which is actuated to control the motor, wherein the actuating switch is arranged in front of the center of the head in the front-back direction. Dust collector according to claim 10 or 11, further comprising a control unit that controls the motor, wherein the control unit is arranged in front of the center of the head in the front-back direction. Dust collector according to claim 10, 11 or 12, further comprising an actuating switch which is actuated to control the motor, and a control which controls the motor, wherein the actuating switch and the control are arranged in front of the center of the head in the front-back direction, and the control is arranged behind the actuating switch. Dust collector according to one of claims 10 to 13, wherein the battery pack is arranged to the right of the center of the head in a left-right direction. Dust collector according to one of claims 10 to 14, wherein the intake opening is arranged to the left of the center of the head in a left-right direction. Dust collector according to one of claims 10 to 15, wherein the motor is arranged behind the center of the head in the front-back direction. Dust collector according to one of claims 10 to 16, wherein the motor is arranged on a central area of ​​the head in a left-right direction. Dust collector according to one of claims 1 to 17, further comprising a nozzle receptacle which receives a nozzle which is connected to the dust collection hose, wherein the outer shape of the head is long in a front-back direction, and the nozzle receptacle is provided on one side of the motor and on the rear side of the battery pack. Dust collector according to one of claims 1 to 18, further comprising a hose receptacle which receives the dust collection hose, wherein the hose receptacle is arranged above the intake opening.

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