Dust collector

Abstract

The present application relates to a dust collector, and an object thereof is to cool a controller. The dust collector includes a main body case, a motor disposed inside the main body case, a fan rotated by the motor, a controller that controls the motor, and a heat insulating member disposed between the motor and the controller to form a flow path through which an air current generated by the fan flows.

Description

TECHNICAL FIELD

[0001] The present application relates to a dust collector. BACKGROUND

[0002] In the technical field related to a dust collector, there is known an electric cleaner having a control substrate (controller) as disclosed in Patent Literature 1.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: Japanese Patent Application Laid-Open No. 2000-093368 SUMMARY

[0006] The controller generates heat. Therefore, it is necessary to cool the controller.

[0007] An object of the present application is to cool the controller.

[0008] According to the present application, there is provided a dust collector characterized by comprising: a main body housing; a motor disposed inside the main body housing; a fan rotated by the motor; a controller that controls the motor; and a heat insulating member disposed between the motor and the controller, which forms a flow path through which an air current generated by the fan flows.

[0009] EFFECT OF THE INVENTION

[0010] According to the present application, the controller is cooled. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a perspective view showing a dust collector according to an embodiment, as viewed from the front left.

[0012] Figure 2 is a perspective view showing a dust collector according to an embodiment, as viewed from the rear right.

[0013] Figure 3 is a cross-sectional view showing a dust collector according to an embodiment.

[0014] Figure 4 is a cross-sectional view showing a dust collector according to an embodiment.

[0015] Figure 5 is a cross-sectional view showing a dust collector according to an embodiment.

[0016] Figure 6 is a perspective view showing a dust collector according to an embodiment, as viewed from the front left, with the main body opening open.

[0017] Figure 7is a view of the dust collector in a state in which the battery cover has been removed, as viewed from the front.

[0018] Figure 8 is a perspective view showing a state in which the battery assembly is attached to the battery attachment portion, as viewed from the left front.

[0019] Figure 9 is a perspective view of the dust collector in a state in which the cover has been removed, as viewed from the left upper side.

[0020] Figure 10 is an exploded perspective view of the dust collector in a state in which the cover has been removed, as viewed from the left upper side.

[0021] Symbol Explanation

[0022] 1…dust collector, 2…container section, 3…main body section, 4…latch, 5…suction cylinder, 6…container, 7…container housing, 8…container cover, 9…lower container cover, 10…support member, 11…float, 12…suction port, 13…blowout port, 14…flow path, 15…joint section, 16…screw, 17…caster, 18…vent, 19…inlet, 20…flow path, 21…screw, 22…cylinder section, 23…plate section, 24…opening, 25…main body housing, 26…motor, 27…fan, 28…motor housing, 28L…left motor housing, 28R…right motor housing, 28S…sealing member, 29…fan base, 30…fan cover, 31…support ring, 32…controller, 33…heat insulating member, 34…switch base, 35…switch button, 36…handle, 37…battery cover, 38…battery fitting section, 40…lower housing, 41…upper housing, 42…divider housing, 43…cover, 44…screw, 45…battery housing chamber, 46…drive unit housing chamber, 47…stator, 48…rotor, 49…rotor shaft, 50…bearing, 51…bearing, 52…motor air inlet, 53…motor air outlet, 54…sealing member, 55…fan air inlet, 56…cooling air inlet, 57…inlet flow path, 58…cooling air outlet, 59…outlet flow path, 60…main power switch, 61…suction force adjustment switch, 62…main body opening, 63…lock lever, 64…hook section, 65…battery pack, 66…guide section, 67…main body terminal, 68…fixing release button, 69…cover section, 70…cover opening, 77…flow path, 78…sound absorbing member, 271…blower fan, 272…cooling fan, 321…control substrate, 322…controller housing, 331…plate section, 332…rib section, 333…partition section, 381…first battery fitting section, 382…second battery fitting section, 421…rib section, 422…rib section, 423…rib section, 424…inlet side rib section, 425…outlet side rib section, 426…inlet, 427…outlet, 451…first battery housing chamber, 452…second battery housing chamber, 621…first main body opening, 622…second main body opening, 691…first cover section, 692…second cover section. DETAILED DESCRIPTION

[0023] Hereinafter, an embodiment to which the present application pertains will be described with reference to the drawings, and the present application is not limited to the embodiment. The constituent elements of the embodiment described below can be appropriately combined. Also, a part of the constituent elements can not be used at times.

[0024] In the embodiment, the terms of "front", "rear", "left", "right", "upper" and "lower" are used to describe the positional relationship of each part. These terms indicate the relative position or direction with the center of the dust collector 1 as a reference.

[0025] [dust collector]

[0026] Figure 1 is a perspective view showing the dust collector 1 according to the embodiment as viewed from the left front. Figure 2 is a perspective view showing the dust collector 1 according to the embodiment as viewed from the right rear. Figure 3 、 Figure 4 and Figure 5 are cross-sectional views showing the dust collector 1 according to the embodiment. Figure 3 corresponds to the A-A line cross-sectional arrow view of Figure 1 . Figure 4 corresponds to the B-B line cross-sectional arrow view of Figure 1 . Figure 5 corresponds to the C-C line cross-sectional arrow view of Figure 4 .

[0027] In the embodiment, the dust collector 1 is a dry-wet dust collector capable of sucking in not only a gas but also a liquid. As the gas, air can be exemplified. As the liquid, water can be exemplified.

[0028] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the dust collector 1 is provided with a container section 2, a main body section 3, and a latch 4. The main body section 3 is disposed above the container section 2. The container section 2 supports the main body section 3. The latch 4 fixes the container section 2 and the main body section 3. The latch 4 is provided in the left and right portions of the container section 2, respectively.

[0029] The container section 2 is provided with a suction cylinder 5, a container 6, a container housing 7, a container cover 8, a lower container cover 9, a support member 10, and a float 11.

[0030] The suction cylinder 5 sucks in at least one of a gas and a liquid. The suction cylinder 5 is disposed in the front portion of the container section 2. The suction cylinder 5 is provided with a suction port 12, a blowout port 13, and a flow path 14 connecting the suction port 12 and the blowout port 13. The suction port 12 is disposed in the front end portion of the suction cylinder 5. The blowout port 13 is disposed in the rear end portion of the suction cylinder 5. The suction port 12 is provided in the front portion of the container section 2. The suction port 12 faces the front. The blowout port 13 is disposed in the internal space of the container 6. Dust and one or both of the gas and the liquid are sucked in from the suction port 12 and flow into the internal space of the container 6.

[0031] The suction port 12 is connected to a dust collecting hose (not shown). The container section 2 has a joint section 15 configured to surround the front end section of the suction cylinder 5. The joint section 15 is fixed to the front section of the suction cylinder 5 and the container case 7 with screws 16. At least a part of the dust collecting hose is inserted into the inside of the suction cylinder 5 via the suction port 12. At least a part of the dust collecting hose is fixed to the joint section 15.

[0032] The container 6 has an inside space that stores dust sucked from the suction port 12. In a case where liquid is sucked from the suction port 12, the container 6 stores the liquid sucked from the suction port 12. The liquid is stored in the inside space of the container 6.

[0033] The container case 7 is arranged around the container 6. A caster 17 is attached to the lower section of the container case 7. The caster 17 supports the container section 2 so as to be movable. The container section 2 moves on a cleaning target surface in a state of supporting the main body section 3 with the caster 17. A user of the dust collector 1 pulls the dust collector 1 forward by the dust collecting hose, whereby the dust collector 1 can be moved forward on the cleaning target surface.

[0034] The container cover 8 is arranged so as to cover an opening provided in the upper section of the container 6. A vent 18 is provided in a part of the container cover 8.

[0035] The lower container cover 9 is fixed to the lower surface of the container cover 8. The lower container cover 9 is fixed to the container cover 8 with screws (not shown). The lower container cover 9 has a flow inlet 19 that faces the inside space of the container 6. A flow path 20 is formed between the container cover 8 and the lower container cover 9. The flow path 20 is provided so as to link the flow inlet 19 and the vent 18.

[0036] The support member 10 is arranged in the inside space of the container 6. The support member 10 supports the float 11 so as to be movable in the vertical direction. The support member 10 is fixed to the lower surface of the lower container cover 9. The support member 10 is fixed to the lower container cover 9 with screws 21. The support member 10 has a cylindrical section 22 and a plurality of plate sections 23 arranged around the cylindrical section 22. A filter (not shown) is arranged around the cylindrical section 22. In addition, an opening 24 is provided in at least a part of the cylindrical section 22. Gas or liquid around the cylindrical section 22 can flow into the inside space of the cylindrical section 22 via the filter and the opening 24. The filter recovers dust from the gas or liquid that flows into the cylindrical section 22.

[0037] The float 11 is disposed in the inside space of the container 6. The float 11 is disposed in the inside space of the cylindrical portion 22. The float 11 is capable of floating on a liquid. In a case where the inside space of the cylindrical portion 22 is free from the liquid, the float 11 is disposed in the lower portion of the cylindrical portion 22. In a case where the liquid is sucked from the suction port 12 into the inside space of the container 6 and the liquid flows into the inside space of the cylindrical portion 22 via the opening 24, the float 11 moves upward according to the liquid level (water level) of the inside space of the cylindrical portion 22. The liquid level of the inside space of the cylindrical portion 22 refers to the height of the surface (water surface) of the liquid in the inside space of the cylindrical portion 22. The float 11 moves upward while being guided by the cylindrical portion 22. The float 11 moves upward by the liquid in the inside space of the cylindrical portion 22 to block the inflow port 19 of the lower container cover 9.

[0038] The main body portion 3 has a main body case 25, a motor 26, a fan 27, a motor case 28, a fan pedestal 29, a fan cover 30, a support ring 31, a controller 32, a heat insulating member 33, a switch pedestal 34, a switch button 35, a handle 36, a battery cover 37, and a battery fitting portion 38.

[0039] The main body case 25 is supported to the container portion 2. The main body case 25 includes a lower case 40, an upper case 41, a partition case 42, and a cover 43.

[0040] The lower case 40 and the upper case 41 are disposed at the front of the main body portion 3. The partition case 42 is disposed at the rear of the main body portion 3.

[0041] The lower case 40 is connected to the container cover 8. The upper case 41 is disposed more upward than the lower case 40. The upper case 41 and the container cover 8 are fixed by a screw 44. The lower case 40 is sandwiched by the upper case 41 and the container cover 8.

[0042] A battery housing chamber 45 is formed by the lower case 40, the upper case 41, and the container cover 8.

[0043] The partition case 42 is connected to the container cover 8. The partition case 42 and the container cover 8 are fixed by a screw (not shown).

[0044] A drive unit housing chamber 46 is formed inside the partition case 42. The battery housing chamber 45 and the drive unit housing chamber 46 are partitioned by at least a portion of the partition case 42.

[0045] The cover 43 is disposed to cover the lower case 40, the upper case 41, and the partition case 42, respectively.

[0046] Motor 26 is disposed inside the main housing 25. In this embodiment, motor 26 is disposed in the drive unit housing 46 of the separator housing 42. Motor 26 is an internal rotor type brushless motor. Motor 26 generates power to rotate fan 27. Motor 26 has: a stator 47, a rotor 48 disposed inside the stator 47, and a rotor shaft 49 fixed to the rotor 48. Rotor shaft 49 extends in the vertical direction. Rotor shaft 49 is supported for rotation by bearings 50 and 51. Bearings 50 and 51 are ball bearings. Bearing 50 supports the upper part of rotor shaft 49 for rotation. Bearing 51 supports the lower part of rotor shaft 49 for rotation. The rotation axis of rotor shaft 49 extends in the vertical direction.

[0047] Fan 27 is fixed to rotor shaft 49. Fan 27 is rotated by motor 26. When rotor shaft 49 of motor 26 rotates, fan 27 rotates. Fan 27 includes: air supply fan 271 and cooling fan 272. Air supply fan 271 creates suction at intake 12. Cooling fan 272 generates airflow to cool motor 26. Air supply fan 271 is fixed to the lower end of rotor shaft 49. Cooling fan 272 is fixed to a portion of rotor shaft 49 between the lower end of stator 47 and air supply fan 271. Air supply fan 271 is a centrifugal fan. Cooling fan 272 is a centrifugal fan. The outer diameter of air supply fan 271 is larger than the outer diameter of cooling fan 272. When rotor shaft 49 of motor 26 rotates, air supply fan 271 and cooling fan 272 rotate respectively.

[0048] The motor housing 28 is located inside the main housing 25, housing the motor 26 and cooling fan 272. The motor housing 28 supports the motor 26. The motor housing 28 also supports bearings 50 and 51. The motor housing 28 is cylindrical. The motor housing 28 has a semi-open structure. Figure 5 As shown, the motor housing 28 includes a left motor housing 28L and a right motor housing 28R connected to the left motor housing 28L. A sealing member 28S is provided at the upper end of the motor housing 28. The sealing member 28S is annular. The sealing member 28S is made of synthetic rubber such as nitrile rubber (NBR) or silicone rubber. The upper end of the motor housing 28 is connected to the separator housing 42 through the sealing member 28S. The sealing member 28S seals the boundary between the upper end of the motor housing 28 and the inner surface of the separator housing 42.

[0049] The motor housing 28 is disposed inside the separator housing 42. That is, the motor housing 28 is disposed within the drive unit housing 46. The motor housing 28, inside the separator housing 42, houses the motor 26 and the cooling fan 272. The motor 26 and the cooling fan 272 are disposed within the internal space of the motor housing 28. The motor housing 28 has a motor air inlet 52 and a motor exhaust outlet 53. The motor air inlet 52 is located at the upper end of the motor housing 28. The motor exhaust outlet 53 is located at the lower part of the side of the motor housing 28. Gas surrounding the motor housing 28 can flow into the internal space of the motor housing 28 through the motor air inlet 52. Gas within the internal space of the motor housing 28 can flow out to the surrounding area of ​​the motor housing 28 through the motor exhaust outlet 53.

[0050] A fan base 29 is disposed around a motor housing 28. The fan base 29 supports the motor housing 28. The fan base 29 is made of a synthetic resin such as polycarbonate resin. A sealing member 54 is provided at the upper end of the fan base 29. The sealing member 54 is annular. The sealing member 54 is made of a synthetic rubber such as nitrile rubber (NBR) or silicone rubber. The upper end of the fan base 29 is connected to the separator housing 42 through the sealing member 54. The sealing member 54 seals the boundary between the upper end of the fan base 29 and the inner surface of the separator housing 42.

[0051] The fan cover 30 is configured to cover at least a portion of the blower fan 271. The fan cover 30 is supported by the fan base 29. At least a portion of the fan cover 30 is disposed around the blower fan 271. At least a portion of the fan cover 30 is disposed below the blower fan 271. The fan cover 30 has a fan air inlet 55. The fan air inlet 55 is located at the lower part of the fan cover 30. The fan air inlet 55 is disposed above the vent 18 of the container cover 8. The fan air inlet 55 is disposed facing the vent 18. Additionally, a vent is provided on at least a portion of the fan cover 30. The vent is located on at least a portion around the blower fan 271.

[0052] The support ring 31 supports the lower surface of the fan shroud 30. The support ring 31 is annular. The support ring 31 is made of synthetic rubber such as nitrile rubber (NBR) or silicone rubber. The support ring 31 is supported on the container lid 8. The support ring 31 is in close contact with the lower surface of the fan shroud 30. The support ring 31 is in close contact with the upper surface of the container lid 8. The support ring 31 seals the boundary between the fan shroud 30 and the container lid 8.

[0053] The rotation of the blower fan 271 creates an attractive force at the intake 12. Figure 3As indicated by arrow Fa, gas drawn into the internal space of container 6 from inlet 12 flows through opening 24 into the inner space of cylindrical portion 22 of support member 10, and then flows into inlet 19 of lower container cover 9. The gas flowing into inlet 19 passes through flow path 20 between lower container cover 9 and container cover 8, and then flows inside vent 18 and support ring 31. The gas flowing through vent 18 and support ring 31 flows into fan 271 through fan inlet 55. The air flowing into fan 271 is discharged around fan cover 30 through vents provided on fan cover 30.

[0054] The rotation of the cooling fan 272 causes air around the motor housing 28 to flow into the interior space of the motor housing 28 through the motor air inlet 52. The air flowing into the interior space of the motor housing 28 cools the motor 26. The air that has cooled the motor 26 is then discharged around the motor housing 28 through the motor exhaust port 53.

[0055] In this embodiment, the main housing 25 includes a cooling air inlet 56, an air intake path 57, a cooling exhaust outlet 58, and an exhaust path 59. The cooling air inlet 56 is located on the right rear portion of the main housing 25. The cooling air inlet 56 connects the external space and the internal space of the main housing 25. The cooling exhaust outlet 58 is located on the left rear portion of the main housing 25. The cooling exhaust outlet 58 connects the internal space and the external space of the main housing 25. The air intake path 57 is located within the internal space of the main housing 25. The air intake path 57 connects the cooling air inlet 56 and the motor air inlet 52. The exhaust path 59 is located within the internal space of the main housing 25. The exhaust path 59 connects the motor exhaust outlet 53 and the cooling exhaust outlet 58.

[0056] like Figure 5 As indicated by arrow Fb, the rotation of cooling fan 272 causes gas used to cool motor 26 to flow into intake air passage 57 through cooling air inlet 56. The gas flowing through intake air passage 57 flows into the internal space of motor housing 28 through motor air inlet 52. The gas flowing into the internal space of motor housing 28 cools motor 26. The cooled gas flows out from motor exhaust port 53 into exhaust flow passage 59. The gas flowing through exhaust flow passage 59 is discharged into the external space of main body housing 25 through cooling exhaust port 58.

[0057] When liquid is sucked in from the suction port 12, the liquid is stored in the internal space of the container 6. When the internal space of the container 6 stores the liquid, the water level in the inside space of the cylindrical portion 22 of the support member 10 rises, and the float 11 moves upward. The float 11 that moves upward blocks the flow inlet 19 of the lower container cover 9. By the flow inlet 19 being blocked, the flow path 20 that communicates with the fan air inlet 55 of the fan case 30 is blocked. That is, the float 11 moves upward by the liquid in the inside space of the cylindrical portion 22 to block the flow path 20 that communicates with the fan air inlet 55 of the fan case 30. The flow inlet 19 of the lower container cover 9 is blocked by the float 11, so that the flow path 20 that communicates with the fan air inlet 55 of the fan case 30 is blocked, whereby the liquid is inhibited from flowing into the drive unit housing chamber 46.

[0058] Even if the fan air inlet 55 is blocked, the motor 26 is cooled by the rotation of the cooling fan 272.

[0059] The controller 32 includes a computer system. The controller 32 outputs a control signal for controlling the electronic devices mounted on the dust collector 1. The electronic devices include the motor 26. The controller 32 outputs a control signal for controlling the motor 26. The controller 32 includes a control substrate on which a plurality of electronic components are mounted. As the electronic components mounted on the control substrate, a processor such as a CPU (Central Processing Unit), a nonvolatile memory such as a ROM (Read Only Memory) or a storage, a volatile memory such as a RAM (Random Access Memory), a transistor, a capacitor, and a resistor can be exemplified.

[0060] The heat insulating member 33 is disposed between the motor 26 and the controller 32. In the embodiment, the heat insulating member 33 supports the controller 32. The heat insulating member 33 is disposed at the upper portion of the partitioner housing 42.

[0061] The switch base 34 is disposed at the front portion of the main body housing 25. The switch base 34 is plate-shaped. The switch base 34 is long in the up-down direction. The switch base 34 has a main power switch 60 and a suction force adjustment switch 61. The main power switch 60 and the suction force adjustment switch 61 are respectively disposed at the switch base 34. The main power switch 60 and the suction force adjustment switch 61 are disposed along the up-down direction. In the embodiment, the suction force adjustment switch 61 is disposed below the main power switch 60. Note that the suction force adjustment switch 61 can be disposed above the main power switch 60.

[0062] The switch button 35 is disposed more upward than the switch base 34 at the front of the main body case 25. The switch button 35 is movably supported to the main body case 25.

[0063] The handle 36 is movably supported to the upper portion of the main body case 25. The handle 36 is disposed more rearward than the switch button 35. The user of the dust collector 1 can carry the dust collector 1 while holding the handle 36.

[0064] The main body case 25 has a main body opening 62 communicating with the battery housing chamber 45. The main body opening 62 is provided to at least a portion of the main body case 25. In the embodiment, the main body opening 62 is provided to the front of the main body case 25.

[0065] The battery cover 37 opens and closes the main body opening 62. The upper end portion of the battery cover 37 is rotatably supported to the upper portion of the front of the main body case 25.

[0066] Figure 6 is a perspective view showing the dust collector 1 of the embodiment in which the main body opening 62 is opened from the front left. Figure 7 is a view of the dust collector 1 in which the battery cover 37 has been removed, as viewed from the front.

[0067] The main body opening 62 communicates with the battery housing chamber 45. The main body opening 62 is provided to the front of the main body case 25. The battery cover 37 opens and closes the main body opening 62. In the embodiment, the upper end portion of the battery cover 37 is rotatably supported to the upper portion of the front of the main body case 25. The upper end portion of the battery cover 37 and the upper portion of the front of the main body case 25 are linked by a hinge. The rotation axis of the battery cover 37 extends in the left-right direction. The battery cover 37 is supported to the main body case 25 in such a manner that the lower end portion of the battery cover 37 rotates in the up-down direction.

[0068] A lock lever 63 is provided to the lower end portion of the battery cover 37. A hook portion 64 is provided to the front surface of the main body case 25. The hook portion 64 is disposed more downward than the switch base 34 and the main body opening 62. The battery cover 37 and the main body case 25 are fixed by the lock lever 63 being hooked to the hook portion 64.

[0069] The battery mounting portion 38 is disposed more forward than the motor 26 at the inside of the main body case 25. The battery mounting portion 38 is disposed to the battery housing chamber 45. The main body opening 62 communicates with the battery mounting portion 38. The battery pack 65 is attached and detached with respect to the battery mounting portion 38.

[0070] The battery pack 65 functions as a power supply for the dust collector 1. The battery pack 65 supplies power to the electronic devices mounted on the dust collector 1 in a state of being fitted to the battery fitting portion 38. The motor 26 is driven by the power supplied from the battery pack 65. The controller 32 operates by the power supplied from the battery pack 65. The battery pack 65 is a general-purpose battery that can be used as a power supply for various electric devices. The battery pack 65 can be used as a power supply for a power tool. The battery pack 65 can be used as a power supply for electric devices other than the power tool. The battery pack 65 can be used as a power supply for another dust collector different from the dust collector 1 according to the embodiment. The battery pack 65 includes a lithium-ion battery. The battery pack 65 includes a rechargeable battery. The battery fitting portion 38 has a structure identical to that of a battery fitting portion of a power tool.

[0071] The switch base 34 is disposed beside the main body opening 62. In the embodiment, the battery fitting portion 38 includes a first battery fitting portion 381 disposed farther to the left than the switch base 34, and a second battery fitting portion 382 disposed farther to the right than the switch base 34. The battery housing chamber 45 includes a first battery housing chamber 451 in which the first battery fitting portion 381 is disposed, and a second battery housing chamber 452 in which the second battery fitting portion 382 is disposed. The main body opening 62 includes a first main body opening 621 communicating with the first battery fitting portion 381, and a second main body opening 622 communicating with the second battery fitting portion 382.

[0072] The battery cover 37 includes a cover portion 69 covering the main body opening 62, and a cover opening 70 in which the switch base 34 is disposed. The cover portion 69 includes a first cover portion 691 covering the first main body opening 621, and a second cover portion 692 covering the second main body opening 622. In a state in which the main body opening 62 is closed by the cover portion 69, the surface of the switch base 34 is disposed inside the cover opening 70. The switch base 34 is exposed at the cover opening 70.

[0073] [Battery fitting portion]

[0074] Figure 8 is a perspective view showing a state in which the battery pack 65 according to the embodiment is fitted to the battery fitting portion 38, as viewed from the front left.

[0075] The user of the dust collector 1 can perform an operation of fitting the battery pack 65 to the battery fitting portion 38 and an operation of detaching the battery pack 65 from the battery fitting portion 38. The battery fitting portion 38 has a guide portion 66 and a main body terminal 67. The battery pack 65 has a battery terminal. The guide portion 66 of the battery fitting portion 38 guides the battery pack 65 inserted into the main body opening 62 in the horizontal direction.

[0076] In the embodiment, the horizontal direction refers to a direction parallel to a plane including a front-rear axis parallel to the front-rear direction and a left-right axis parallel to the left-right direction.

[0077] In the embodiment, the guide portion 66 guides the battery pack 65 in the front-rear direction.

[0078] The main terminal 67 of the battery mounting portion 38 is connected to the battery terminal of the battery pack 65. The user inserts the battery pack 65 into the battery mounting portion 38 from the front of the battery mounting portion 38 and moves it to the rear, whereby the battery pack 65 is mounted to the battery mounting portion 38. The battery pack 65 is guided by the guide portion 66 while moving to the rear, whereby it is mounted to the battery mounting portion 38. By the battery pack 65 being mounted to the battery mounting portion 38, the main terminal 67 of the battery mounting portion 38 and the battery terminal of the battery pack 65 are electrically connected. The battery pack 65 has a fixing release button 68. The user of the dust collector 1 operates the fixing release button 68 of the battery pack 65 to move the battery pack 65 to the front, whereby the battery pack 65 can be detached from the battery mounting portion 38.

[0079] The first battery mounting portion 381 and the second battery mounting portion 382 are electrically connected in parallel. In a state where the battery pack 65 is mounted to the first battery mounting portion 381 and no battery pack 65 is mounted to the second battery mounting portion 382, the electronic device mounted to the dust collector 1 can operate using the electric power supplied from the battery pack 65 mounted to the first battery mounting portion 381. In a state where the battery pack 65 is mounted to the second battery mounting portion 382 and no battery pack 65 is mounted to the first battery mounting portion 381, the electronic device mounted to the dust collector 1 can operate using the electric power supplied from the battery pack 65 mounted to the second battery mounting portion 382.

[0080] The main power switch 60 is operated to switch between supplying electric power from the battery pack 65 to the dust collector 1 and stopping the supply of electric power. The suction force adjustment switch 61 is operated to adjust the rotational speed of the motor 26 per unit time. The rotational speed of the motor 26 per unit time is adjusted to adjust the suction force from the suction inlet 12.

[0081] In a state where the main power switch 60 is operated to supply electric power from the battery pack 65 to the dust collector 1, the switch button 35 is operated to switch between driving and stopping the driving of the motor 26.

[0082] [Thermal Insulation Member]

[0083] Figure 9is a perspective view of the dust collector 1 in a state in which the cover 43 involved in the embodiment has been removed, as viewed from the upper left. Figure 10 is an exploded perspective view of the dust collector 1 in a state in which the cover 43 involved in the embodiment has been removed, as viewed from the upper left.

[0084] As shown in Figure 5 , Figure 9 and Figure 10 , the heat-insulating member 33 is disposed between the motor 26 and the controller 32. The heat-insulating member 33 suppresses the transfer of heat of the motor 26 to the controller 32.

[0085] At least a portion of the heat-insulating member 33 is disposed between the motor exhaust port 53 and the controller 32. The heat-insulating member 33 suppresses the transfer of heat of the gas discharged from the motor exhaust port 53 to the controller 32. The heat-insulating member 33 suppresses the contact of the gas discharged from the motor exhaust port 53 with the controller 32. That is, the heat-insulating member 33 suppresses the transfer of heat of the gas cooled by the motor 26 to the controller 32. The heat-insulating member 33 suppresses the contact of the gas cooled by the motor 26 with the controller 32.

[0086] The thermal conductivity of the heat-insulating member 33 is lower than the thermal conductivity of the partition housing 42. In the embodiment, the heat-insulating member 33 is made of synthetic rubber such as nitrile rubber (NBR) or silicone rubber.

[0087] The controller 32 is disposed more upward than the motor 26. The controller 32 is disposed more upward than the heat-insulating member 33. The motor 26 is disposed more downward than the heat-insulating member 33.

[0088] The heat-insulating member 33 is disposed more upward than the motor housing 28. The heat-insulating member 33 is disposed at an upper portion of the partition housing 42.

[0089] The heat-insulating member 33 supports the controller 32. The heat-insulating member 33 has a plate portion 331, a rib portion 332, and a partition portion 333.

[0090] The plate portion 331 opposes a lower surface of the controller 32. An upper surface of the plate portion 331 is in contact with the lower surface of the controller 32.

[0091] The rib portion 332 protrudes upward from the upper surface of the plate portion 331. The rib portion 332 is disposed at least a portion around the controller 32. The rib portion 332 is in contact with at least a portion of a side surface of the controller 32. The rib portion 332 positions the controller 32.

[0092] As shown in Figure 5 , the partition portion 333 protrudes downward from a lower surface of the plate portion 331.

[0093] The controller 32 includes a control board 321 on which multiple electronic components are mounted, and a controller housing 322 for housing the control board 321. In this embodiment, the lower surface of the controller 32 includes the lower surface of the controller housing 322. The sides of the controller 32 include the sides of the controller housing 322.

[0094] The controller housing 322 is rectangular in shape. Rib 332 contacts the left front corner of the controller housing 322. The separator housing 42 has: rib 421 that contacts the left rear corner of the controller housing 322, rib 422 that contacts the right rear corner of the controller housing 322, and rib 423 that contacts the right front corner of the controller housing 322. The controller 32 is positioned by ribs 332, 421, 422, and 423.

[0095] The heat insulation component 33 forms a flow path for the airflow generated by the cooling fan 272. The flow path for the airflow generated by the cooling fan 272 includes an exhaust flow path 59 connected to the motor exhaust port 53. The flow path for the airflow generated by the cooling fan 272 includes an intake flow path 57 connected to the motor intake port 52.

[0096] The intake airflow path 57 is positioned further to the right than the exhaust airflow path 59. The intake airflow path 57 and the exhaust airflow path 59 extend in the left and right directions, respectively.

[0097] At least a portion of the air intake path 57 is formed by the separator housing 42 and the cover 43. For example... Figure 9 and Figure 10 As shown, the separator housing 42 has a pair of intake-side ribs 424. The intake-side ribs 424 protrude upwards from the upper surface of the separator housing 42. The intake-side ribs 424 extend in the left-right direction. The pair of intake-side ribs 424 are arranged in the front-rear direction. The cover 43 is configured to cover the intake-side ribs 424. At least a portion of the intake airflow path 57 is formed by the space surrounded by the upper surface of the separator housing 42, the pair of intake-side ribs 424, and the cover 43.

[0098] At least a portion of the exhaust flow path 59 is formed by the separator housing 42 and the cover 43. For example... Figure 9 and Figure 10 As shown, the separator housing 42 has a pair of exhaust-side ribs 425. The exhaust-side ribs 425 protrude upward from the upper surface of the separator housing 42. The exhaust-side ribs 425 extend in the left-right direction. The pair of exhaust-side ribs 425 are arranged in the front-back direction. The cover 43 is configured to cover the exhaust-side ribs 425. At least a portion of the exhaust flow path 59 is formed by the space surrounded by the upper surface of the separator housing 42, the pair of exhaust-side ribs 425, and the cover 43.

[0099] The partition case 42 has an intake port 426 that communicates with the motor intake port 52, and an exhaust port 427 that communicates with the motor exhaust port 53. The intake port 426 is disposed above the motor intake port 52. The exhaust port 427 is disposed further left than the intake port 426. As shown in FIG. 5, a flow path 77 is formed between the left portion of the motor case 28 and the fan base 29. The gas discharged from the motor exhaust port 53 flows through the flow path 77. The exhaust port 427 is disposed above the flow path 77. Figure 5

[0100] Further, sound absorbing members 78 are disposed in the intake flow path 57 and the exhaust flow path 59, respectively. As the sound absorbing members 78, for example, porous members made of synthetic resin can be exemplified.

[0101] The intake flow path 57 and the exhaust flow path 59 are partitioned by at least a portion of the heat insulating member 33. As shown in FIG. 5, the intake flow path 57 and the exhaust flow path 59 are partitioned by a partitioning portion 333 of the heat insulating member 33. The partitioning portion 333 is disposed between the intake flow path 57 and the exhaust flow path 59 in the left-right direction. The heat insulating member 33 is in contact with the partition case 42. The heat insulating member 33 seals the boundary between the intake flow path 57 and the exhaust flow path 59. Figure 5

[0102] The heat insulating member 33 is disposed in a portion around the intake port 426. The heat insulating member 33 is disposed so as not to cover the intake port 426. At least a portion of the heat insulating member 33 is disposed further upward than the exhaust port 427. At least a portion of the heat insulating member 33 is disposed so as to face the exhaust port 427 with a gap therebetween. The heat insulating member 33 is supported to the partition case 42 in a manner that does not block the exhaust port 427.

[0103] At least a portion of the intake flow path 57 is formed by the partition case 42 and the controller 32. The plate portion 331 supports a portion of the controller 32. At least a portion of the controller 32 is disposed further upward than the intake port 426. The controller 32 is supported to the heat insulating member 33 in a manner that does not block the intake port 426. At least a portion of the controller 32 is disposed further upward than the upper surface of the partition case 42. The lower surface of the controller 32 further right than the intake port 426 is not covered by the plate portion 331 of the heat insulating member 33. The lower surface of the controller 32 further right than the intake port 426 faces the intake flow path 57. That is, in the intake flow path 57, a portion of the lower surface of the controller 32 is not covered by the heat insulating member 33 so that a portion of the controller 32 faces the intake flow path 57. At least a portion of the intake flow path 57 is formed by a space surrounded by the upper surface of the partition case 42, the pair of intake-side rib portions 424, and the lower surface of the controller 32.

[0104] ​​At least a portion of the intake air flow path 57 is formed by the partition case 42 and the heat shield member 33. At least a portion of the rib portion 332 of the heat shield member 33 is disposed further forward than the intake port 426. The rib portion 332 is connected to the intake side rib portion 424. The rib portion 332 defines at least a portion of the intake air flow path 57.

[0105] At least a portion of the exhaust air flow path 59 is formed by the partition case 42 and the heat shield member 33. At least a portion of the plate portion 331 of the heat shield member 33 is disposed further upward than the exhaust port 427. The plate portion 331 is not occluded to the exhaust port 427. At least a portion of the plate portion 331 is disposed further upward than the upper surface of the partition case 42. The plate portion 331 is connected to the exhaust side rib portion 425. The lower surface of the controller 32 further leftward than the intake port 426 is covered by the plate portion 331 of the heat shield member 33. The lower surface of the controller 32 further leftward than the intake port 426 is not faced toward the exhaust air flow path 59. That is, in the exhaust air flow path 59, the lower surface of the controller 32 is covered by the heat shield member 33 so that the controller 32 is not faced toward the exhaust air flow path 59. At least a portion of the exhaust air flow path 59 is formed by a space surrounded by the upper surface of the partition case 42, the pair of exhaust side rib portions 425, and the lower surface of the plate portion 331.

[0106] [Effects]

[0107] As described above, according to the embodiment, the heat shield member 33 is disposed between the motor 26 and the controller 32. By the heat shield member 33, the transfer of the heat of the motor 26 and the heat of the gas cooled after the motor 26 to the controller 32 is inhibited. The heat shield member 33 forms a flow path through which the air flow generated by the cooling fan 272 flows. By the air flow flowing through the flow path formed by the heat shield member 33, the controller 32 is effectively cooled.

[0108] The motor 26 is housed in the motor case 28. The motor case 28 has a motor intake port 52 and a motor exhaust port 53. The heat shield member 33 can form at least a portion of the exhaust air flow path 59 connected to the motor exhaust port 53. In addition, the heat shield member 33 can form at least a portion of the intake air flow path 57 connected to the motor intake port 52.

[0109] The controller 32 is not faced toward the exhaust air flow path 59. In the exhaust air flow path 59, the controller 32 is covered by the heat shield member 33. The gas cooled after the motor 26 flows through the exhaust air flow path 59. By the heat shield member 33, the contact of the gas cooled after the motor 26 with the controller 32 is inhibited, and thus the transfer of the heat of the gas cooled after the motor 26 to the controller 32 is inhibited.

[0110] At least a portion of the controller 32 faces the intake flow path 57. In the intake flow path 57, the controller 32 is not covered by the heat insulating member 33. The gas before cooling the motor 26 flows in the intake flow path 57. The gas before cooling the motor 26 comes into contact with the controller 32, and thus the controller 32 is effectively cooled.

[0111] The intake flow path 57 and the exhaust flow path 59 are partitioned by the partitioned portion 333 of the heat insulating member 33. Accordingly, mixing of the gas flowing in the intake flow path 57 and the gas flowing in the exhaust flow path 59 is suppressed.

[0112] At least a portion of the heat insulating member 33 is disposed between the motor exhaust port 53 and the controller 32. Accordingly, the gas after cooling the motor 26 is suppressed from coming into contact with the controller 32.

[0113] The controller 32 is disposed more upward than the motor 26. The controller 32 is disposed more upward than the heat insulating member 33. The motor 26 is disposed more downward than the heat insulating member 33. Accordingly, heat transfer of the motor 26 to the controller 32 is suppressed, and at least one of the intake flow path 57 and the exhaust flow path 59 is appropriately formed by the heat insulating member 33.

[0114] The heat insulating member 33 supports the controller 32. Accordingly, heat transfer of the motor 26 to the controller 32 is effectively suppressed.

[0115] The heat insulating member 33 has a plate portion 331 opposed to a lower surface of the controller 32, and a rib portion 332 disposed to at least a portion of the periphery of the controller 32. Accordingly, the heat insulating member 33 can stably support the controller 32 in a positioned state.

[0116] In the embodiment, the dust collector 1 is a dry-wet dust collector capable of sucking not only gas but also liquid. The fan 27 includes a blowing fan 271 that generates suction at the suction port 12, and a cooling fan 272 that generates an airflow for cooling the motor 26. Accordingly, even if the fan intake port 55 is blocked by the float 11, the motor 26 is cooled by rotation of the cooling fan 272.

[0117] [Other Embodiments]

[0118] In the above-described embodiment, the cooling fan 272 can be omitted. By rotation of the blowing fan 271, an airflow for cooling the motor 26 can also be generated.

[0119] In the above-described embodiment, the dust collector 1 is a dry-wet dust collector. The dust collector 1 can be a dry dust collector.

Claims

1. A dust collector, characterized in that, have: Main body shell; A motor, which is disposed inside the main body housing; A fan that rotates using the motor; A controller that controls the motor; A heat insulation component is disposed between the motor and the controller, having a plate portion that contacts the lower surface of the controller, forming a flow path for airflow generated by the fan; as well as The motor housing is located inside the main housing, where the motor is stored. The motor housing has: a motor air inlet and a motor exhaust outlet. The flow path includes: an intake flow path connected to the motor intake port, and an exhaust flow path connected to the motor exhaust port. The heat insulation component has a partition portion that protrudes downward from the lower surface of the plate and is disposed between the air intake passage and the exhaust passage, thereby sealing the boundary between the air intake passage and the exhaust passage.

2. The dust collector according to claim 1, characterized in that, In the exhaust flow path, the controller is covered by the heat insulation component so that the controller does not face the exhaust flow path. At least a portion of the exhaust flow path is formed by the main body shell and the heat insulation component.

3. The dust collector according to claim 1 or 2, characterized in that, In the air intake path, a portion of the controller is not covered by the heat insulation component, so that a portion of the controller faces the air intake path. At least a portion of the air intake path is formed by the main housing and the controller.

4. The dust collector according to claim 1 or 2, characterized in that, At least a portion of the heat insulation component is disposed between the motor exhaust port and the controller.

5. The dust collector according to claim 1 or 2, characterized in that, The controller is positioned higher up than the motor.

6. The dust collector according to claim 1 or 2, characterized in that, The controller is positioned above the heat insulation component.

7. The dust collector according to claim 1 or 2, characterized in that, The motor is positioned lower than the heat insulation component.

8. The dust collector according to claim 1 or 2, characterized in that, The heat insulation component supports the controller.

9. The dust collector according to claim 1 or 2, characterized in that, The heat insulation component also has at least a portion of ribs disposed around the controller and for positioning the controller.

10. The dust collector according to claim 1 or 2, characterized in that, The dust collector includes a container section with an intake port and supports the main outer shell. The fan includes: an air supply fan that draws air into the intake port, and a cooling fan that generates airflow to cool the motor. The heat insulation component forms a flow path for the airflow generated by the cooling fan.

11. The dust collector according to claim 10, characterized in that, The dust collector includes a fan shroud with an air inlet that covers at least a portion of the blower fan. The container section includes: a container for storing liquid drawn in from the inlet, and a float disposed inside the container and movable by means of the liquid to block a flow path communicating with the fan inlet.

Images