CN209996201U - Power assembly and cleaning tool with same - Google Patents

Power assembly and cleaning tool with same Download PDF

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Publication number
CN209996201U
CN209996201U CN201920416742.0U CN201920416742U CN209996201U CN 209996201 U CN209996201 U CN 209996201U CN 201920416742 U CN201920416742 U CN 201920416742U CN 209996201 U CN209996201 U CN 209996201U
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China
Prior art keywords
fan
motor
control unit
power assembly
circuit board
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CN201920416742.0U
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Chinese (zh)
Inventor
刘海平
夏磊
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Suzhou Cleva Electric Appliance Co Ltd
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Suzhou Cleva Electric Appliance Co Ltd
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Priority to CN201920416742.0U priority Critical patent/CN209996201U/en
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Abstract

The utility model discloses an power component and burnisher that has this power component, power component includes the casing, fan, second fan and circuit board, the circuit board includes 0 body setting floor body, and lay in a plurality of electronic component of board body, a plurality of electronic component include public unit, 1 control unit and second control unit, when mode, public unit, control unit, fan establish signal connection, fan independent operation, when second mode, public unit, second control unit, second fan establish signal connection, the second fan independent operation, when third mode, public unit, control unit, fan establish signal connection, and public unit, second control unit, second fan establish signal connection, fan and second fan simultaneous operation, through with circuit board control, partly the same component has been shared in common, the simplified design, reduce cost.

Description

Power assembly and cleaning tool with same
Technical Field
The utility model relates to an kind of power component and have this power component's burnisher belongs to small household electrical appliances and makes technical field.
Background
Most of the existing dust collectors in the market, especially the direct current dust collectors, are single fans and are limited by the rotating speed of motors of the fans and the space of the whole dust collector, and the performance of the dust collectors is generally low, so that the dust collectors only can be used for simply cleaning surfaces and are difficult to deeply clean.
In addition, an independent circuit board needs to be arranged for each fan to control the operation of the fans, aspects are not favorable for structural design and layout, and aspects increase the cost.
SUMMERY OF THE UTILITY MODEL
To solve at least of the above problems, the present invention provides a power module and a cleaning tool having the power module.
To achieve of the above objects, an embodiment of the present invention provides power assemblies, where each power assembly includes a housing, a th fan, a second fan, and a circuit board, where the th fan and the second fan are both assembled to the housing, the circuit board includes a body, a floor body, and a plurality of electronic components disposed on the floor body, and the electronic components include a common unit, a control unit, and a second control unit;
the power assembly is provided with an th working mode, a second working mode and a third working mode, wherein in the th working mode, the common unit, the th control unit and the th fan are in electric signal connection, and the th fan operates independently, in the second working mode, the common unit, the second control unit and the second fan are in electric signal connection, and the second fan operates independently, in the third working mode, the common unit, the th control unit and the th fan are in electric signal connection, and the common unit, the second control unit and the second fan are in electric signal connection, and the th fan and the second fan operate simultaneously.
As a further improvement of the embodiment of the present invention, the utility unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal, and a speed command signal, the control unit is configured to receive a signal from the utility unit and control the fan according to the received signal in the th and third operating modes, and the second control unit is configured to receive a signal from the utility unit and control the second fan according to the received signal in the second and third operating modes;
the th fan and the second fan each include a brushless motor.
As a further improvement of the embodiment of the present invention at , the housing, the th fan and the second fan are combined to form a modular whole, and the circuit board is fixedly assembled to the housing, the th fan and at least of the three of the second fan.
As a further improvement of the embodiment of the present invention in , the housing includes a th assembling portion connected to the th fan in a matching manner and a second assembling portion connected to the second fan in a matching manner, and the th assembling portion and the second assembling portion have the same matching structure.
As a further improvement of the embodiment of the present invention, the air path of the th fan is connected in parallel with the air path of the second fan;
the casing comprises a supporting plate, the supporting plate is provided with an th air opening, a second air opening, a front side surface and a rear side surface opposite to the front side surface, and the th air opening and the second air opening respectively penetrate through the front side surface and the rear side surface;
the th fan and the second fan are arranged side by side on the rear side of the supporting plate, the th fan is in sealed butt joint with the th air port, and the second fan is in sealed butt joint with the second air port.
As a further improvement of the embodiment of the present invention, the air path of the th fan is connected in series with the air path of the second fan;
the shell is provided with an th air port, a second air port and an air cavity formed inside the shell, the air cavity is arranged between the th air port and the second air port, the th fan is contained in the air cavity and is in sealing butt joint with the th air port, and the second fan is arranged outside the shell and is in sealing butt joint with the second air port.
As a further improvement of the embodiment of the present invention , the casing includes a support plate having the th tuyere and a housing having the second tuyere, the support plate and the housing are assembled in a sealing manner and surround the air cavity;
the supporting plate comprises a front side surface and a rear side surface opposite to the front side surface, the rear side surface is provided with an adapting part, and the front edge of the housing is in inserting fit with the adapting part;
the matching and connecting part is arranged to be a groove and is in plug-in fit with the front edge of the housing, or the matching and connecting part is arranged to be a convex rib and the housing is provided with a groove matched with the convex rib.
As a further improvement of the embodiment of the present invention in , the rear side of the supporting plate is provided with a th assembling portion, and the th assembling portion has a th annular platform surrounding the th tuyere and protruding backwards and a th assembling cavity surrounded by the th annular platform;
the shell comprises an th limiting part, and the th fan comprises a th limited part;
the nd limiting portion is adapted to the th limited portion to prevent movement of the th fan away from the support plate when the th fan is inserted into the th mounting cavity.
As the improvement of the step of the embodiment of the utility model discloses , the fan includes the fan blade and drive the fan blade pivoted motor, the fan blade is established in the assembly chamber, just the annular platform with the motor interference cup joints and closely laminates.
As the improvement of the embodiment of the of the utility model, the housing comprises a second limiting part, a cover part covering the th fan and a second cover part provided with the second air port, the second cover part comprises a second assembly part, the second assembly part comprises a second annular platform surrounding the second air port and protruding backwards and a second assembly cavity surrounded by the second annular platform, the second fan comprises a second limited part, when the second fan is inserted in the second assembly cavity, the second limiting part is matched with the second limited part to prevent the second fan from keeping away from the moving housing;
the second limited part is a protruding structure formed on the outer surface of the second fan, the second limited part is a hanging lug extending backwards from the rear edge of the second annular table, and the hanging lug is provided with a limit hole matched with the protruding structure.
To achieve of the above objects, the present invention provides embodiment of the invention provides power assemblies, which includes a housing, a th motor, a second motor and a circuit board, wherein the circuit board includes bodies, a floor body and a general control unit arranged on the floor body, the th motor includes a th motor and a th driver integrated on the circuit board, and the second motor includes a second motor and a second driver integrated on the circuit board;
the power assembly is provided with an th working mode, a second working mode and a third working mode, wherein in the th working mode, the master control unit controls the th motor to independently operate through the th driver, in the second working mode, the master control unit controls the second motor to independently operate through the second driver, in the third working mode, the master control unit controls the th motor to operate through the th driver, and in the meantime, the master control unit controls the second motor to operate through the second driver.
To achieve of the above objects, a embodiment of the present invention provides cleaning tools, which includes a machine body and the power assembly, wherein the power assembly is modularly assembled to the machine body.
Compared with the prior art, the beneficial effects of the utility model reside in that:
, the fan and the second fan are controlled by the circuit board, and in terms of angle, the brushless motor driver and the second brushless motor driver are integrated on the circuit board with the main control function, so that the control cost of the fan and the second fan is reduced, and part of the same elements on the circuit board are shared as the main control unit to the maximum extent, thereby simplifying the structural design and reducing the cost;
step by step, in addition, aspect, power component is the modularization setting, and it can regard as whole and assemble in the complete machine organism, when reaching and adopting two fans to promote power, the assembly and disassembly is convenient, has reduced because of the not enough probability of cleaning means suction that the fan equipment is bad leads to, and can be general in different cleaning means, has solved among the prior art must assemble alone to dismantle and can't general use the problem on different cleaning means to two fans.
Drawings
Fig. 1 is a schematic structural view of a power module according to embodiment 1 of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the power module of FIG. 1;
fig. 3 is an exploded perspective view of the power module of embodiment 1;
fig. 4 is an exploded perspective view of the second fan of embodiment 1;
fig. 5 is a schematic structural view of a power module according to embodiment 2 of the present invention;
FIG. 6 is a longitudinal cross-sectional view of the power module of FIG. 5;
fig. 7 is an exploded perspective view of the power module of embodiment 2;
fig. 8 is a schematic structural view of a power module according to embodiment 3 of the present invention;
FIG. 9 is a longitudinal cross-sectional view of the power assembly of FIG. 8;
fig. 10 is an exploded perspective view of the power module of embodiment 3;
fig. 11 is a schematic structural view of a power module according to embodiment 4 of the present invention;
FIG. 12 is a longitudinal cross-sectional view of the power module of FIG. 11;
fig. 13 is an exploded perspective view of the power module of embodiment 4;
fig. 14 is a partially exploded perspective view of the power assembly of embodiment 4;
fig. 15 is an exploded perspective view of the th fan of embodiment 4;
fig. 16 is a schematic structural view of a power module according to embodiment 5 of the present invention;
FIG. 17 is a longitudinal cross-sectional view of the power assembly of FIG. 16;
fig. 18 is an exploded perspective view of the power module of embodiment 5;
fig. 19 is a schematic structural view of a power module according to embodiment 6 of the present invention;
FIG. 20 is a longitudinal cross-sectional view of the power assembly of FIG. 19;
fig. 21 is an exploded perspective view of the power module of embodiment 6.
Detailed Description
As described in the background art, in the conventional dual-fan vacuum cleaner, since the suction force of the fan is affected by the sealing property, and in order to ensure that the airflow can flow to the position of the fan along the preset path, it is necessary to match a specific complete machine casing for each fan, which makes the overall mechanism of the vacuum cleaner complicated and the assembly and disassembly complicated, and times when the complete machine casing is not assembled with the fan, the suction force of the vacuum cleaner is insufficient.
Based on this, the utility model provides kind of burnishers and kind have the power component of double fan specifically, the burnisher include the complete machine organism and power component, the burnisher is preferred to be set up to direct current dust catcher or other dust catcher, the complete machine organism specifically can include arbitrary or a plurality of dirt cup, dirt cup lid, working head, handle etc. power component assembles and is used for providing suction for burnisher's cleaning operation on the complete machine organism.
Compared with the prior art, is the aspect, power component is the modularization setting, and it can regard as whole and assemble in the complete machine organism, when reaching and adopting double fan to promote power, assembly and disassembly is convenient, has reduced because of the not enough probability of the cleaning means suction that the fan equipment is bad leads to, and can be general in different cleaning means, has solved among the prior art must assemble alone to dismantle and can't general use the problem on different cleaning means to two fans moreover, power component's compact structure, occupation space is little, is convenient for promote the degree of freedom when cleaning means carries out the structure overall arrangement.
In addition , the two fans of the power assembly are controlled by the same circuit board, and in another aspect, the respective drivers of the two motors are integrated on the same circuit board with a main control function, so that part of the same elements on the circuit board are shared as a main control unit to the maximum extent, the structural design is simplified, and the cost is reduced.
Hereinafter, the power module of the present invention will be described in detail with reference to specific embodiments shown in the accompanying drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.
Example 1
Referring to fig. 1 to 4, the power module 100 according to the embodiment of the present invention is shown, as mentioned above, the power module 100 can be assembled on the whole machine body as integral modules.
Specifically, the power assembly 100 includes a housing, an th fan 13 and a second fan 14, wherein the cleaning tool has a normal cleaning mode in which the th fan 13 and of the second fan 14 are operated to provide suction to the cleaning tool and a power cleaning mode in which the th fan 13 and the second fan 14 are operated simultaneously to collectively provide suction to the cleaning tool.
Preferably, as mentioned above, the power assembly 100 is in a modular arrangement, specifically, the th fan 13 and the second fan 14 are assembled and fixed to the housing, and the housing, the th fan 13 and the second fan 14 are combined to form a modular whole, so that when the power assembly 100 is applied to the cleaning tool, the power assembly 100 can be assembled on the machine body as whole modules, that is, the th fan 13 and the second fan 14 can be assembled to the machine body synchronously with the housing, the cleaning tool does not need to specially design a housing matched with the th fan 13 and the second fan 14 respectively as in the prior art , but only needs to fixedly mate the machine body of the cleaning tool with the housing, the assembly and disassembly are convenient, the probability of insufficient suction force of the cleaning tool caused by poor assembly is reduced, and the cleaning tool can be universally used for different cleaning tools, and the problems in the prior art that two fans must be assembled and disassembled separately and cannot be used for different cleaning tools are solved.
, the fan 13 and the second fan 14 are arranged in an air path series structure, that is, the air suction port of 1 of the 0 th fan 13 and the second fan 14 is communicated with the air discharge port of the other of the th fan 13 and the second fan 14, in this embodiment, the air suction port of the second fan 14 is correspondingly communicated with the air discharge port of the th fan 13, that is, the second fan 14 is connected in series with the downstream of the th fan 13, in the power cleaning mode, the air flow (shown by the thick arrow lines in fig. 2) sequentially passes through the air suction port of the th fan 13, the air discharge port of the th fan 13, the air suction port of the second fan 14 and the air discharge port of the second fan 14, in a modified alternative embodiment, the air suction port of the th fan 13 is also correspondingly communicated with the air discharge port of the second fan 14, and the th fan 13 is connected in series with the downstream of the second fan 14.
Specifically, the shell comprises an th air port 113, a second air port 123 and an air cavity 101 formed inside the shell, wherein the air cavity 101 is arranged between the th air port 113 and the second air port 123, the air cavity 101 can be communicated to the outside of the shell through the th air port 113 and the second air port 123 respectively, the th fan 13 is accommodated in the air cavity 101 and is in sealing butt joint with the th air port 113, namely the th fan 13 is arranged inside the shell, and the second fan 14 is arranged outside the shell and is in sealing butt joint with the second air port 123, so that an air path which is communicated in sequence along the th air port 113, the th fan 13, the air cavity 101, the second air port 123 and the second fan 14 is formed.
According to the upstream and downstream relationship between the th fan 13 and the second fan 14, in this embodiment, the suction port of the th fan 13 is hermetically abutted to the th air port 113, and the exhaust port thereof is exposed to the air cavity 101 in an open manner, and the suction port of the second fan 14 is hermetically abutted to the second air port 123, and the exhaust port thereof is exposed to the outside of the housing in an open manner, so that in the powerful cleaning mode, the air flow (shown by the thick arrow in fig. 2) enters the th fan 13 in the air cavity 101 through the th air port 113, is exhausted from the th fan 13, then enters the second fan 14 through the second air port 123, and finally is exhausted from the exhaust port of the second fan 14.
, the housing comprises a support plate 11 and a cover 12, wherein the support plate 11 is provided with a th air inlet 113, the th fan 13 is fixedly assembled on the support plate 11, the cover 12 is provided with a second air inlet 123, the second fan 14 is fixedly assembled on the cover 12, the cover 12 and the support plate 11 are fixedly assembled in a sealing way, and the air outlet cavity 101 is enclosed by the cover 12 and the support plate 11.
Specifically, the supporting plate 11 is in the shape of a circular thin plate, and has a th side 111 and a second side 112 opposite to the th side 111 in the th direction, for convenience of description and understanding, the th direction is defined as a front-back direction, wherein a direction from the second side 112 to the th side 111 is defined as "front", whereas a direction from the th side 111 to the second side 112 is defined as "back", and the th side 111 is also referred to as the front side 111, and the second side 112 is also referred to as the back side 112.
The front side 111 of the support plate 11 is completely exposed to the outside of the power module 100, which constitutes a part of the outer surface of the power module 100, and the front side 111 is substantially a plane perpendicular to the front-rear direction, the support plate 11 has a grill structure protruding forward from the front side 111 thereof, and the th tuyere 113 is configured as a hollowed hole formed at the grill structure and penetrating the support plate 11 front and rear.
The rear side 112 of the supporting plate 11 is provided with an th assembling portion 1122, in the embodiment, the th assembling portion 1122 is provided with a 1 th annular platform surrounding the 0 th tuyere 113 and protruding backwards, and a cylindrical th assembling cavity 1124 surrounded by the 2 th annular platform, the th assembling cavity 1124 is communicated with the th tuyere 113, and the th fan 13 is inserted into the th assembling cavity 1124 from back to front so as to be positioned and assembled with the th assembling portion 1122, so that the th fan 13 abuts against the th tuyere 113.
In the present embodiment, the th fan 13 is substantially cylindrical with a central axis V11, when the th fan 13 is assembled in the th assembling portion 1122, the central axis V11 extends substantially in the front-rear direction (i.e., perpendicular to the supporting plate 11), and the positional relationship is described below with reference to the th fan 13, the th fan 13 includes a th wind scooper 131, a th fan blade and a th motor 133, wherein the th motor 133 is configured as a brushless motor and is an electromechanical energy conversion structure, the front end portion of the th wind scooper 131 forms an air suction port of the th fan 13, the rear end portion of the th fan scooper 131 is hermetically sleeved with the front end portion of the th motor 133, specifically, the inner surface 573 of the rear end portion of the th wind scooper 131 is closely attached to and interferes with the outer surface of the front end portion of the 465 th motor 133, the th wind scooper is sleeved with the th fan blade 131 and the th motor 133, and the third fan blade 133 is connected with the 599 th fan blade 5928.
When the th motor 133 is activated, the th motor 133 provides power to drive the th blade to rotate around the central axis V11, so as to form an air flow from the air suction port of the th fan 13 to the air exhaust port of the th fan 13. in the assembling process of the power assembly 100, preferably, the components of the th fan 13 are assembled first, and then the th fan 13 is inserted into the th assembling cavity 1124 from the rear to the front, at least a part of the th wind scooper 131 and the th annular platform are sleeved with each other.
, the power assembly 100 further includes a second sealing element 16, the second sealing element 16 is made of flexible material such as silicone rubber, and is clamped between the th fan 13 and the supporting plate 11, and is specifically clamped between the front end surface of the th air guiding cover 131 and the supporting plate 11, so as to achieve the sealed butt joint between the th fan 13 and the th air inlet 113, thereby avoiding forming an air leakage path at the assembly joint between the supporting plate 11 and the th fan 13, and ensuring the suction force of the power assembly 100, and by providing the second sealing element 16, the requirement (such as the size) for the mating between the th fan 13 and the th assembling portion 1122 can be reduced, thereby reducing the processing difficulty and the processing cost.
, the rear side 112 of the support plate 11 is provided with a fitting 1121, and the front edge of the housing 12 is fittingly and sealingly engaged with the fitting 1121. in this embodiment, the fitting 1121 is provided as a groove, and the front edge of the housing 12 is inserted into the fitting 1121, so that the housing 12 and the rear side 112 of the support plate 11 enclose the air outlet chamber 101.
The power assembly 100 further includes an -th sealing element 15, wherein the -th sealing element 15 is made of flexible material such as silicon rubber and is clamped between the front edge of the casing 12 and the support plate 11 to achieve the sealing and matching of the casing 12 and the support plate 11, so as to ensure the sealing performance of the wind cavity 101 and the suction force of the power assembly 100. in the assembling process of the power assembly 100, after the -th fan 13 is assembled on the support plate 11, the -th sealing element 15 is embedded into the matching part 1121, and then the front edge of the casing 12 is inserted into the matching part 1121 in a relative movement from back to front.
In addition, the support plate 11 further has th fixing parts 1123 provided on the rear side surface 112 thereof, and correspondingly, the cover case 12 has second fixing parts 125 adapted to the th fixing parts 1123, and the th fixing parts 1123 and the second fixing parts 125 are coupled to each other to firmly fix the cover case 12 and the support plate 11 to . preferably, as the present embodiment, the th fixing parts 1123 have through holes, and the second fixing parts 125 have screw holes, which can be screwed into the screw holes of the second fixing parts 125 after passing through the through holes of the th fixing parts 1123 using bolts to firmly assemble the cover case 12 and the support plate 11, and the second fixing parts 125 and the bolts are coupled in the front-rear direction to facilitate steps of pressing the cover case 12 against the support plate 11 as the bolts are screwed, thereby enhancing the sealing between the support plate 11 and the cover case 12.
, the housing 12 includes a hood 121 and a second hood 122, wherein the hood 121 extends in the front-rear direction in a cylindrical shape, the fan 13 is at least partially accommodated in a cylindrical space enclosed by the hood 121 and the support plate 11, the cylindrical space forming a portion of the air chamber 101, the second hood 122 is arranged side by side with the hood 121 in the vertical direction in the front-rear direction, and the space enclosed between the second hood 122 and the support plate 11 forms the remaining portion of the air chamber 101.
The second cover portion 122 is provided with a second tuyere 123. specifically, the second cover portion 122 has a grill structure protruding forward toward the inside of the wind chamber 101, and the second tuyere 123 is a hollowed hole formed at the grill structure and penetrating the second cover portion 122 forward and backward, similar to the -th tuyere 113.
The second cover portion 122 includes a second fitting portion 1221 provided at a rear end portion thereof, and in this embodiment, the second fitting portion 1221 has a second annular base surrounding the second tuyere 123 and projecting rearward, and a cylindrical second fitting cavity 1224 surrounded by the second annular base, the second fitting cavity 1224 being in communication with the second tuyere 123; the second fan 14 is inserted into the second fitting cavity 1124 from the rear to the front, and is thus positioned and assembled with the second fitting portion 1221 such that the second fan 14 abuts the second tuyere 123.
In the present embodiment, the second fan 14 is substantially cylindrical with a central axis V12, and when the second fan 14 is assembled on the second assembling portion 1221, the central axis V12 is parallel to the central axis V11, and the central axis V12 also extends substantially in the front-rear direction (i.e., perpendicular to the supporting plate 11), and the specific structure of the second fan 14 will be described with reference to this positional relationship. The second fan 14 includes a second wind scooper 141, a second fan blade 142, and a second motor 143, wherein: the second motor 143 is provided as a brushless motor, which is an electromechanical energy conversion structure; the front end of the second air guiding cover 141 forms an air suction opening of the second fan 14, the rear end of the second air guiding cover 141 is hermetically sleeved with the front end of the second motor 143, and specifically, the inner surface of the rear end of the second air guiding cover 141 is closely attached to and is in interference fit with the outer surface of the front end of the second motor 143; the second fan blade 142 is disposed in a second fan cavity enclosed by the second wind scooper 141 and the second motor 143, and the second fan blade 142 is in transmission connection with the second motor 143. When the second motor 143 is activated, the second motor 143 provides power to drive the second blade 142 to rotate around the central axis V12, so as to form an air flow from the air suction opening of the second fan 14 to the air discharge opening of the second fan 14. During the assembly process of the power assembly 100, it is preferable that the components of the second fan 14 are assembled, and then the second fan 14 is inserted into the second assembly cavity 1224 from the rear to the front, at least a portion of the second wind scooper 141 and the second annular platform are sleeved with each other.
, the power assembly 100 further includes a third sealing element 17, where the third sealing element 17 is made of a flexible material such as silicone rubber and is clamped between the second fan 14 and the casing 12, and particularly between the front end surface of the second wind scooper 141 and the casing 12, so as to achieve a sealed butt joint between the second fan 14 and the second wind gap 123, thereby avoiding forming a wind leakage path at an assembly joint between the casing 12 and the second fan 14, and ensuring a suction force of the power assembly 100, and by providing the third sealing element 17, it is also possible to reduce a matching requirement (such as a size) between the second fan 14 and the second assembling portion 1221, thereby reducing a processing difficulty and a processing cost.
In addition, in the present embodiment, the second fixing portions 125 are respectively provided in four, two of which are provided outside the th cover portion 121 and two of which are provided outside the second cover portion 122, and correspondingly, the th fixing portions 1123 are also provided in four, so that the th cover portion 121 and the second cover portion 122 can be stably and tightly assembled and fixed to the supporting plate 11.
, it is preferable that the mounting portion 1122 and the second mounting portion 1222 have the same mating structure, so that the blower 13 and the second blower 14 can be interchanged without affecting the mounting, and the assembly and disassembly are convenient.
, the fan 13 includes 0 th limited part, the housing includes 2 th limited part matched with the 1 th limited part, the th limited part can be arranged at any of the support plate 11 and the housing 12, when the th fan 13 is inserted into the th assembling cavity 1224, the th limited part applies the th limited part abutting force, and the abutting force prevents the th fan 13 from moving backwards away from the support plate 11 to be separated from the assembling position, so that assembling firmness and sealing performance can be ensured.
Similarly, the second fan 14 includes a second restrained portion 144, the housing includes a second restrained portion 1223 adapted to the second restrained portion 144, the second restrained portion 1223 applying a holding force to the second restrained portion 144 , the holding force preventing the second fan 14 from moving rearwardly away from the second cover portion 122 and out of its assembled position, thereby ensuring the assembly security and sealing performance, specifically, in the present embodiment, the second restrained portion 144 is a raised structure formed on the outer surface of the second motor 143, and correspondingly, the second restrained portion 1223 is a tab extending rearwardly from the rear edge of the second annular platform, the tab having a restraining hole adapted to the raised structure, and when the second fan 14 is assembled to the second assembled portion 1221, the raised structure is inserted into the restraining hole, and the tab restrains the raised structure from moving rearwardly, thereby achieving the restraint of the second fan 14 and enhancing the assembly security of the second fan 14.
, the power assembly 100 further includes a circuit board 191 and a second circuit board 192.
circuit board 191 controls the operation of fan 13. in this embodiment, 0 circuit board 191 is fixedly assembled at the rear side of fan 13 (i.e. the side of fan 13 facing away from air inlet 113) and in air cavity 101, so as to dissipate heat of circuit board 191 by the air flow in air cavity 101. in addition, the rear end of hood 121 is provided with a wiring hole 124, and the wire 193 of circuit board 191 extends to the outside of the housing through the wiring hole 124, so that the circuit board 191 is electrically connected with other components (such as the power supply of the cleaning tool), and preferably, the power assembly 100 further comprises a wire 18 sleeved outside the wire 193, and the wire sealing plug 18 is inserted at the position of the wiring hole 124, so as to prevent air leakage at the wiring hole 124 and ensure the sealing performance in the air cavity 101.
The second circuit board 192 controls the operation of the second fan 14. in this embodiment, the second circuit board 192 is fixedly assembled to a rear side of the second fan 14 (i.e., the side of the second fan 14 facing away from the second air inlet 123), so that the second circuit board 192 dissipates heat by using the airflow discharged from the second fan 14, and in addition, the second circuit board 192 may be electrically connected to other components (e.g., the power supply of the cleaning tool) by wires.
As mentioned above, the power assembly 100 is provided in a modular manner, and the th circuit board 191, the second circuit board 192, the housing, the th fan 13 and the second fan 14 are combined to form a modular whole, so that the assembly simplicity is enhanced, and the power assembly 100 can be adapted to different cleaning tools.
, the circuit board 191 includes a board body provided with bodies and a plurality of electronic components provided with board bodies, the plurality of electronic components include a total control unit and a control unit, similarly, the second circuit board 192 includes a body provided with a second board body and a plurality of second electronic components provided with the second total control unit and the second control unit.
The power assembly 100 has a , a second and a third operating mode, wherein in said operating mode said 0 general control unit, said control unit, said 2 fan 13 (specifically said motor 133) establish an electrical signal connection, while in said second operating mode said second general control unit, said second fan 14 (specifically said second motor 143) do not establish an electrical signal connection, and only said fan 13 of said fan 13 and said second fan 14 operates independently, wherein in said second operating mode said 6 general control unit, said control unit, said fan 13 (specifically said motor 133) do not establish an electrical signal connection, while in said second operating mode said second general control unit, said second fan 14 (specifically said general control motor 143) establish an electrical signal connection, and in said fan 13 and said second fan 14 operate independently, and in said third operating mode said 59638 fan control unit (specifically said ) also establish an electrical signal connection, while in said second operating mode said second fan 14 (specifically said second fan ) control unit and said second fan 14 operate independently.
More specifically, the th general control unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal and a speed command signal, and the 0 th control unit is configured to receive signals from the 2 th general control unit and control the 3 th motor 133 according to the received signals when the 1 th and third operation modes are performed, for example, the 4 th control unit receives the power supply signal from the 5 th general control unit and then controls the 6 th motor 133 to access the power supply signal, or receives the start/stop command signal from the th general control unit and then controls the th motor 133 to start or stop, or receives the brake command signal from the th general control unit and then controls the th motor 133 to brake, or receives the sensing command signal from the th unit and then controls a sensor (e.g. a position sensor) of the th motor 133 to sense, or receives the speed command signal from the th general control unit and then controls the th motor to adjust the rotation speed.
In another aspect, the driver adapted to the motor 133 is integrated with the circuit board 191, at least a portion of the control unit forms at least a portion of the driver, and the driver can be used to control the power on, start, stop, brake, speed, direction, current (or torque), sense, and protect the motor 133 from overcurrent, overvoltage, overheat, etc. during the power on, stop, braking, turning, and turning of the motor 133.
Similarly, specifically, the second general control unit is configured to output or more of a power supply signal, a start/stop instruction signal, a brake instruction signal, a sensing instruction signal and a speed instruction signal, and the second control unit is configured to receive signals from the second general control unit and control the second motor 143 according to the received signals in the second and third operation modes, for example, the second control unit receives the power supply signal from the second general control unit and then controls the second motor 143 to access the power supply signal, or receives the start/stop instruction signal from the second general control unit and then controls the second motor 143 to start or stop, or receives the brake instruction signal from the second general control unit and then controls the second motor 143 to brake, or receives the sensing instruction signal from the second general control unit and then controls a sensor (e.g., a position sensor) of the second motor 143 to sense, or receives the speed instruction signal from the second general control unit and then controls the second motor 133 to adjust the rotation speed.
In another aspect, a second driver adapted to the second motor 143 is integrated into the second circuit board 192, and at least a portion of the second control unit constitutes at least a portion of the second driver, and the second driver can be used to control power supply, start/stop, braking, rotational speed, steering, current (or torque), sense and protect the second motor 133 from overcurrent, overvoltage, overheating, etc. the electronic components are implemented in hardware or a combination of hardware and software, that is, the th general control unit, the th control unit, the second general control unit, and the second control unit are respectively defined as hardware or a combination of hardware and software required for performing their respective functions (e.g., outputting signals, receiving signals, controlling, etc.).
Compared with the prior art, the power assembly 100 of the embodiment has the following beneficial effects:
(1) the double fans with the air paths in series are arranged, so that the suction force of the power assembly 100 is increased, the power assembly 100 is arranged in a modularized manner, a special design of a shell matched with the fan 13 and the second fan 14 is not needed as in in the prior art, the fan 13, the second fan 14, the circuit board 191 and the second circuit board 192 can be synchronously assembled on the whole machine body along with the shell, the assembly and disassembly are convenient, the probability of insufficient suction force of a cleaning tool caused by poor assembly is reduced, and the universality of the power assembly 100 in different cleaning tools is improved;
(2) by arranging the sealing element 15, the second sealing element 16 and the third sealing element 17, the sealing connection between the casing 12 and the support plate 11, between the support plate 11 and the fan 13 and between the casing 12 and the second fan 14 can be respectively realized, the sealing performance of the power assembly 100 is improved, and the suction force of the power assembly 100 is ensured;
(3) by providing the fitting part 1122 and the 1221 fitting part with the same mating structure, the fan 13 and the second fan 14 can be interchanged without affecting the fitting, and the assembly and disassembly are facilitated.
Example 2
Referring to fig. 5 to 6, a power module 200 according to an embodiment of the present invention is substantially the same as the power module 100 of embodiment 1, and includes a housing, a fan 23, a second fan 24, a circuit board 291, a second circuit board 292, a sealing element 25, a wire 293, and a wire sealing plug 28, which correspond to the housing, the fan 13, the second fan 14, the circuit board 191, the second circuit board 192, the sealing element 15, the wire 193, and the wire sealing plug 18 of the power module 100 of embodiment 1 one by one , and can be understood by referring to the description of embodiment 1.
Only the differences between the power assembly 200 of the present embodiment and the power assembly 100 of embodiment 1 will be described, and the other parts/structures that are the same as those of embodiment 1 will not be described again.
Specifically, in this embodiment, compared to the fan 13 in embodiment 1, the -th fan 23 omits the -th wind scooper, that is, the -th fan 23 includes a -th fan blade 232 and a -th electric motor 233.
In the aspect of the supporting plate 21 adapted to the th fan 23, the 0 th annular platform of the th assembling portion 2122 is in sealing fit with the front end portion of the 1 th motor 233, specifically, the inner surface of the 2 th annular platform is in close fit and interference fit with the outer surface of the front end portion of the 3 th motor 233, the 4 th fan 232 is arranged in the 6 th assembling cavity 2124 of the 5 th assembling portion 2122, and the 7 th fan 232 is in transmission connection with the 8 th motor 233, when the 9 th motor 233 is started, the th motor 233 provides power to drive the th fan 232 to rotate around the central axis V21, so as to form an air flow from the th 213 to the exhaust outlet of the th fan 23, in the assembling process of the power assembly 200, the th fan 232 and the th motor 233 can be directly assembled, and the th motor 233 can be directly and be in sealing fit with the th annular platform from back to front, which the sealing seal 16 in the second embodiment 1 is omitted.
Similarly, in the present embodiment, compared to the second fan 14 in embodiment 1, the second fan 24 omits the second wind scooper 141, that is, the second fan 24 includes the second fan blade 242 and the second motor 243.
In the case 22 adapted to the second fan 24, the second annular table of the second fitting portion 2221 is sealingly fitted to the front end portion of the second motor 243, and specifically, an inner surface of the second annular table is closely fitted to and interference fitted to an outer surface of the front end portion of the second motor 243; the second blade 242 is disposed in the second assembling cavity 2224 of the second assembling portion 2221, and the second blade 242 is in transmission connection with the second motor 243, when the second motor 243 is started, the second motor 243 provides power to drive the second blade 242 to rotate around the central axis V22, so as to form an air flow from the second air opening 223 to the air outlet of the second fan 24. In this way, during the assembly process of the power assembly 200, the second fan 242 and the second motor 243 may be directly assembled, and then the second motor 243 is hermetically coupled to the second annular table from the rear to the front, which eliminates the third sealing element 17 in embodiment 1 compared to embodiment 1.
Compared with the prior art, the power assembly 200 of the present embodiment has the same advantages as those of the embodiment 1, and compared with the embodiment 1, the present embodiment also has the advantages of simpler connection manner between the th fan 23, the second fan 24 and the housing, more convenient assembly and better sealing performance.
Example 3
Referring to fig. 8 to 10, a power module 300 according to an embodiment of the present invention is shown, wherein the power module 300 has substantially the same structure as the power module 300 of embodiment 2.
Specifically, the power assembly 300 includes a housing, an th fan 33, a second fan 34, a th seal 35, and a wire seal plug 38, which are by corresponding to the housing, the th fan 23, the second fan 24, the th seal 25, and the wire seal plug 28 of the power assembly 200 in embodiment 2, and these components can be understood by referring to the description in embodiment 2.
Only the differences between the power assembly 300 of the present embodiment and the power assembly 200 of embodiment 2 will be described, and the other parts/structures that are the same as those of embodiment 2 will not be described again.
Specifically, in this embodiment, , the power assembly 300 includes a circuit board 390 of type disposed outside the housing, the circuit board 390 controlling the operation of the th fan 33 and the second fan 34. the circuit board 390 may be fixedly assembled to the second fan 34 and at least of the housing 32, and includes a th portion located at the rear side of the second fan 34 and a second portion located at the rear side of the housing 32, that is, the circuit board 390 is disposed at the rear side of the second fan 34 and the housing 32 at the same time. of course, in an alternative embodiment, the circuit board 390 may be assembled to the 3 rd fan 33, that is, the circuit board 390 may be assembled to the rd fan 33, the second fan 34 and at least 5 thereof of the housing, the operation of the th fan 33 and the second fan 34 in this embodiment is controlled by the circuit board 390, and the operation of the th fan 33 and the second fan 34 in this embodiment is controlled by the circuit board 390, in other words, compared with embodiment 2, 291 and 292 are integrated into a circuit board 9634 of the same structure as well as the second fan control circuit board 3637, so that the second fan 34, the overall control circuit board 9634 is simplified and the overall cost of the second fan control circuit board 3625 is reduced.
Specifically, the circuit board 390 includes a board body provided with bodies, and a plurality of electronic components including a common unit, a th control unit, and a second control unit provided to the board body.
The power assembly 300 has a th operation mode, a second operation mode and a third operation mode, wherein in the th operation mode, the common unit, the 0 th control unit and the 1 th fan 33 are electrically connected, and at this time, the common unit, the second control unit and the second fan 34 are not electrically connected, and only the th fan 33 of the th fan 33 and the second fan 34 operates independently, in the second operation mode, the common unit, the th control unit and the th fan 33 are not electrically connected, and at this time, the common unit, the second control unit and the second fan 34 are electrically connected, and only the second fan 34 of the th fan 33 and the second fan 34 operates independently, in the third operation mode, the common unit, the th control unit and the th fan 33 are electrically connected, and at the same time, the common unit, the second control unit and the second fan 34 are also electrically connected, and the second fan 33 and the operate simultaneously.
, the th blower 33 includes a th motor 333, and the th motor 333 is a brushless motor having an electromechanical energy conversion structure.
Specifically, the common unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal, and a speed command signal, and the th control unit is configured to receive a signal from the common unit and control the st motor 333 according to the received signal when the th operation mode and the third operation mode, for example, the th control unit receives the power supply signal from the common unit and then controls the th motor 333 to access the power supply signal, or receives the start/stop command signal from the common unit and then controls the th motor 333 to start or stop, or receives the brake command signal from the common unit and then controls the th motor 333 to brake, or receives the sensing command signal from the common unit and then controls a sensor (e.g., a position sensor) of the th motor 333 to sense the rotation speed, or receives the speed command signal from the common unit and then controls the th motor 333 to adjust the rotation speed.
Similarly, the second fan 34 includes a second motor 343, and the second motor 343 is a brushless motor, which is an electromechanical energy conversion structure.
Specifically, the common unit is configured to output or more of a power supply signal, a start/stop instruction signal, a brake instruction signal, a sensing instruction signal, and a speed instruction signal, and the second control unit is configured to receive a signal from the common unit and control the second motor 343 according to the received signal when in the second operation mode and the third operation mode.
It should be noted that the naming of the structure in the present application does not constitute a limitation to the technical solution of the present application, for example, the present embodiment may be replaced by disclosing that the power assembly 300 includes a brushless motor and a second brushless motor, wherein the brushless motor includes a th motor 333 and a th driver, the th motor 333 constitutes a portion of the th blower 33, the driver constitutes the th control unit (i.e., the th control unit may be referred to as the th driver), the second brushless motor includes a second motor 343 and a second driver, the second motor 343 constitutes a portion of the second blower 34, the second driver constitutes the second control unit (i.e., the second control unit may be referred to as the second driver), the common unit is used for controlling the th motor through the second driver and controlling the second motor 343 through the second driver, the second motor 343 may be referred to as the second control unit (i.e., the second control unit may be referred to as the second driver), the common unit may be referred to as the second control unit may be referred to as the total controller 596, the common unit may be used for reducing the cost of the brushless motor, and the cost of the brushless motor may be reduced by the common unit, compared to the common unit, the common unit may be compared to the conventional brushless motor 3626, the common unit, the brushless motor may be used for the brushless motor 3626, the common unit may be used for the common unit, the brushless motor drive, the common unit may be used for reducing the brushless motor drive circuit board 26, the brushless motor 26, the common unit may be used for.
The electronic components are implemented in hardware or a combination of hardware and software, that is, the common unit, the th control unit and the second control unit are respectively defined as hardware or a combination of hardware and software required for executing respective functions (such as outputting signals, receiving signals, controlling, etc.).
, the circuit board 390 is electrically connected to the motor 333 of the blower 33 by a wire 394, the wire 394 extends into the wind chamber 301 of the housing after passing through the wiring hole 324 at the center of the rear side of the casing 32, and similarly, the wire sealing plug 38 of the power assembly 300 is sleeved outside the wire 394 and inserted at the position of the wiring hole 324, thereby preventing wind leakage at the wiring hole 324 and ensuring tightness in the wind chamber 301.
Compared with the prior art, the power assembly 300 of the present embodiment has the same advantages as those of the embodiment 2, and compared with the embodiment 2, the present embodiment also has the following advantages that the operation of the th fan 33 and the second fan 34 is controlled by sharing the same circuit board 390, in other words, the th driver of the th brushless motor and the second driver of the second brushless motor are integrated on the same circuit board 390 with the main control function, so that the control cost of the th fan 33 and the second fan 34 is reduced, and part of the same elements on the circuit board 390 are shared as the main control unit to the maximum extent, thereby simplifying the structural design and reducing the cost.
Example 4
Referring to fig. 11 to 15, the power module 400 according to the embodiment of the present invention can be assembled as integral modules on the whole machine body as described above.
Specifically, the power assembly 400 includes a housing, an th fan 43 and a second fan 44, wherein the cleaning tool has a normal cleaning mode in which the th fan 43 and of the second fan 44 are operated to provide suction to the cleaning tool, and a power cleaning mode in which the th fan 43 and the second fan 44 are operated simultaneously to collectively provide suction to the cleaning tool.
Preferably, as mentioned above, the power assembly 400 is provided in a modular configuration, specifically, the th fan 43 and the second fan 44 are assembled and fixed to the housing, and the housing, the th fan 43 and the second fan 44 are combined to form a modular whole, so that when the power assembly 400 is applied to the cleaning tool, the power assembly 400 can be assembled on the machine body as whole modules, that is, the th fan 43 and the second fan 44 can be assembled to the machine body synchronously with the housing, and the cleaning tool does not need to specially design a housing matched with the th fan 43 and the second fan 44 as in the prior art , but only needs to fixedly mate the machine body of the cleaning tool with the housing, so that the assembly and disassembly are convenient, the probability of insufficient suction force of the cleaning tool caused by poor assembly is reduced, and the cleaning tool can be universally used for different cleaning tools, and the problems in the prior art that two fans must be assembled and disassembled separately and cannot be used on different cleaning tools are solved.
, the fan 43 and the second fan 44 are arranged in a parallel air path configuration.
Specifically, in this embodiment, the housing includes a th tuyere 413 and a second tuyere 414, an air suction port of a th fan 43 is in sealing contact with the th tuyere 413, an air suction port of a second fan 44 is in sealing contact with the second tuyere 414, when the th fan 43 and the second fan 44 are simultaneously operated, parts of air flow (shown by the thick arrow lines in fig. 12) sequentially pass through the th tuyere 413, the th fan 43 air suction port and the th fan 43 air discharge port, the parts of air flow do not pass through the second fan 44, and similarly parts of air flow (shown by the thick arrow lines in fig. 12) sequentially pass through the second tuyere 414, the air suction port of the second fan 44 and the second fan 44 air discharge port, and the parts of air flow do not pass through the th fan 43.
, the housing includes a support plate 41, specifically, the support plate 41 is a circular thin plate having a side 411 and a second side 412 opposite to the side 411 in the direction, wherein the direction is defined as the front-back direction for convenience of description and understanding, wherein the direction from the second side 412 to the side 411 is defined as "front", and the direction from the side 411 to the second side 412 is defined as "back", and the side 411 is also referred to as the front side 411 and the second side 412 is also referred to as the back side 412.
Wherein the front side 411 of the support plate 41 is completely exposed to the outside of the power module 400, which constitutes a part of the outer surface of the power module 400, and the front side 411 is substantially a plane perpendicular to the front-rear direction, and the th air opening 413 and the second air opening 414 are arranged side by side on the support plate 41 and penetrate the front side 411 and the rear side 412 of the support plate 41, respectively.
The rear side 412 of the supporting plate 41 is provided with an th assembling portion 4122, in this embodiment, the th assembling portion 4122 has a 1 th annular platform surrounding the 0 th tuyere 413 and projecting rearward and a cylindrical th assembling chamber 4124 surrounded by the 2 th annular platform, the th assembling chamber 4124 communicates with the th tuyere 413, and the th fan 43 is inserted into the th assembling chamber 4124 from the rear to the front so as to be positioned and assembled with the th assembling portion 4122, so that the th fan 43 abuts against the th tuyere 413.
In the present embodiment, the third fan 43 is substantially cylindrical with a central axis V, when the third fan 43 is assembled to the 0 th assembling portion 4122, the central axis V extends substantially in the front-rear direction (i.e. perpendicular to the supporting plate 41), and the positional relationship is described below with reference to the specific structure of the 1 st fan 43. the 2 nd fan 43 includes a 3 rd wind scooper 431, a 4 th fan 432 and a 5 th motor 433, wherein the 6 th motor 433 is configured as a brushless motor and is an electromechanical energy conversion structure, the front end portion of the 7 th wind scooper 431 forms a wind suction port of the 8 th fan 43, the rear end portion of the 9 th wind scooper 431 is hermetically sleeved with the front end portion of the third motor 433, specifically, the inner surface of the rear end portion of the 0 th wind scooper 431 is closely attached to and in interference with the outer surface of the front end portion of the 1 st motor 433, the 2 nd fan 432 is disposed in the 5 th fan cavity enclosed by the 3 rd wind scooper 431 and the 4 th motor 433, and the 6 th fan 432 is connected to the 7 th motor 433, when the 8 th motor 433 is started, the 9 th fan 433 is further sleeved with power to drive the third fan 43 to rotate around the central axis V, and then to assemble the fourth fan 43 to the front fan 43 and the rear fan 43, the fan 43 and the fan 43 is assembled to the fourth fan 43, and the fourth fan 43.
, the power assembly 400 further includes a second sealing element 46, the second sealing element 46 is made of a flexible material such as silicone rubber, and is clamped between the th fan 43 and the supporting plate 41, and particularly between the front end surface of the th air guiding cover 431 and the supporting plate 41, so as to achieve the sealed butt joint between the th fan 43 and the th air opening 413, thereby avoiding the formation of an air leakage path at the assembly joint between the supporting plate 41 and the th fan 43, and ensuring the suction force of the power assembly 400, and by providing the second sealing element 46, the requirement (such as the size) for the mating between the th fan 43 and the th assembling portion 4122 can be reduced, thereby reducing the processing difficulty and the processing cost.
In addition, the fan 43 comprises a limited part 434, the supporting plate 41 comprises a limited part 4123 matched with the limited part 434, when the fan 43 is assembled at the assembling position of the supporting plate 41, the limited part 4123 exerts the limited part 434 abutting force, and the abutting force prevents the fan 43 from moving backwards away from the supporting plate 41 to be separated from the assembling position, so that the assembling firmness and the sealing performance can be ensured.
Specifically, in this embodiment, the th restricted portion 434 is a 0 th raised structure formed on the outer surface of the th motor 433, correspondingly, the 1 th restricted portion 4123 is a 3 th lug extending backward from the rear edge of the 2 th annular platform, the 4 th lug has a 6 th restricted hole matching with the 5 th raised structure, when the 7 th fan 43 is assembled to the assembling position of the supporting plate 41, the th raised structure is embedded into the th restricted hole, the th lug restricts the backward movement of the th raised structure, thereby restricting the th fan 43 and enhancing the assembling firmness of the th fan 43, in a modified embodiment, the th raised structure and the th restricted hole are interchangeable.
, the structure of the second fan 44 and the supporting plate 41 is identical to the structure of the fan 43 and the supporting plate 41, as follows.
The rear side 412 of the support plate 41 is further provided with a second fitting portion 4221, in this embodiment, the second fitting portion 4221 has a second annular table surrounding the second tuyere 414 and projecting rearward, and a cylindrical second fitting chamber 4224 surrounded by the second annular table, the second fitting chamber 4224 communicating with the second tuyere 414; the second fan 44 is inserted into the second fitting chamber 4224 from the rear to the front, thereby being positioned and assembled with the second fitting portion 4221 such that the second fan 44 abuts the second tuyere 414.
In the present embodiment, the second fan 44 is substantially cylindrical and has a central axis V42, and when the second fan 44 is assembled to the second assembling portion 4221, the central axis V42 extends substantially in the front-rear direction (i.e., perpendicular to the support plate 41), and the specific structure of the second fan 44 will be described with reference to this positional relationship. The second fan 44 includes a second wind scooper, a second fan blade, and a second motor, wherein: the second motor 443 is provided as a brushless motor, which is an electromechanical energy conversion structure; an air suction opening of the second fan 44 is formed at the front end of the second air guiding cover, the rear end of the second air guiding cover is in sealed sleeve joint with the front end of the second motor, and specifically, the inner surface of the rear end of the second air guiding cover is tightly attached to the outer surface of the front end of the second motor and is in interference sleeve joint with the outer surface of the front end of the second motor; the second fan blade is arranged in a second fan cavity enclosed by the second wind scooper and the second motor, and the second fan blade is in transmission connection with the second motor. When the second motor is started, the second motor provides power to drive the second fan blade to rotate around the central axis V42, so as to form an air flow from the air suction opening of the second fan 44 to the air discharge opening of the second fan 44. In the assembling process of the power assembly 400, preferably, the components of the second fan 44 are assembled first, and then the second fan 44 is inserted into the second assembling cavity 4224 from the back to the front, at least a portion of the second wind scooper and the second annular stage are sleeved with each other.
, the power assembly 400 further includes a third sealing element 47, where the third sealing element 47 is made of a flexible material such as silicone rubber and is clamped between the second fan 44 and the support plate 41, and specifically between the front end surface of the second wind scooper and the support plate 41, so as to achieve a sealed butt joint between the second fan 44 and the second wind gap 414, thereby avoiding forming a wind leakage path at an assembly joint between the support plate 41 and the second fan 44, and ensuring a suction force of the power assembly 400, and by providing the third sealing element 47, it is also possible to reduce a requirement (such as a size) for connection between the second fan 44 and the second assembly portion 4221, thereby reducing a processing difficulty and a processing cost.
In addition, the second fan 44 comprises a second limited part 444, the supporting plate 41 comprises a second limited part 4223 matched with the second limited part 444, when the second fan 44 is assembled to the assembling position of the supporting plate 41, the second limited part 4223 applies a propping force to the second limited part 444 , and the propping force prevents the second fan 44 from moving backwards away from the supporting plate 41 to be separated from the assembling position, so that the assembling firmness and the sealing performance can be ensured.
Specifically, in the present embodiment, the second restrained portion 444 is a second convex structure formed on the outer surface of the second motor; correspondingly, the second limit portion 4223 is a second hanging lug extending backwards from the rear edge of the second annular table, the second hanging lug is provided with a second limit hole matched with the second protruding structure, when the second fan 44 is assembled to the assembly position of the support plate 41, the second protruding structure is embedded into the second limit hole, and the second hanging lug limits the backward movement of the second protruding structure, so that the limit of the second fan 44 is realized, and the assembly firmness of the second fan 44 is enhanced. In an alternative embodiment, the second protrusion structure and the second limiting hole may be interchanged.
, it is preferable that the mounting portion 4112 and the second mounting portion 4221 have the same mating structure, so that the blower 43 and the second blower 44 can adopt the same structure and can be interchanged without affecting the assembly, which is convenient for assembly and disassembly.
, the power assembly 400 further includes a circuit board 491 and a second circuit board 492.
The th circuit board 491 controls the operation of the th blower 43, in this embodiment, the th circuit board 491 is fixedly assembled on the rear side of the th blower 43 (i.e., the side of the th blower 43 facing away from the th air opening 413), and the second circuit board 492 controls the operation of the second blower 44, in this embodiment, the second circuit board 492 is fixedly assembled on the rear side of the second blower 44 (i.e., the side of the second blower 44 facing away from the second air opening 414).
As mentioned above, the power assembly 400 is provided in a modular manner, and the circuit board 491, the second circuit board 492, the housing, the second fan 44 and the second fan 44 are combined to form a modular whole, so that the assembly convenience is enhanced, and the power assembly 400 can be adapted to different cleaning tools.
Furthermore, , the circuit board 491 comprises a body disposed th board body and a plurality of th electronic components disposed on the th board body, and the plurality of th electronic components comprise a th general control unit and a th control unit, and similarly, the second circuit board 492 comprises a body disposed second board body and a plurality of second electronic components disposed on the second board body, and the plurality of second electronic components comprise a second general control unit and a second control unit.
The power assembly 400 has a , a second and a third operating mode, wherein in said operating mode said 0 general control unit, said control unit, said 2 fan 43 (specifically said motor 433) establish an electrical signal connection, while in said second operating mode said second general control unit, said second fan 44 (specifically said second motor 443) do not establish an electrical signal connection, and only said fan 43 of said fan 43 and said second fan 44 operates independently, in said second operating mode said 6 general control unit, said control unit, said fan 43 (specifically said motor 433) do not establish an electrical signal connection, while in said second operating mode said second general control unit, said second fan 43, said second fan 44 (specifically said general control motor 443) establish an electrical signal connection, and in said fan 43 and said second fan 44 operate independently, while in said third operating mode said second fan 43, specifically said 3944 control unit connects said second fan 43, said second fan 43 and said second fan 3946 control unit (specifically said 3944) establish an electrical signal connection.
More specifically, the th general control unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal and a speed command signal, and the 0 th control unit is configured to receive signals from the 2 th general control unit and control the 3 th motor 433 according to the received signals when the 1 th and third operation modes are performed, for example, the 4 th control unit receives the power supply signal from the 5 th general control unit and then controls the 6 th motor 433 to access the power supply signal, or receives the start/stop command signal from the th general control unit and then controls the th motor 433 to start or stop, or receives the brake command signal from the th general control unit and then controls the th motor 433 to brake, or receives the sensing command signal from the th unit and then controls a sensor (e.g. a position sensor) of the th motor 433 to sense, or receives the speed command signal from the th general control unit and then controls the th motor 433 to adjust the rotation speed.
In another aspect, a driver adapted to the motor 433 is integrated into the th circuit board 491, at least a portion of the th control unit forms at least a portion of the th driver, and the th driver is capable of controlling the power on, power off, braking, rotational speed, steering, current (or torque), sensing, and protecting the th motor 433 from overcurrent, overvoltage, overheating, etc.
Similarly, specifically, the second general control unit is configured to output or more of a power supply signal, a start/stop instruction signal, a brake instruction signal, a sensing instruction signal and a speed instruction signal, and the second control unit is configured to receive signals from the second general control unit and control the second motor 443 according to the received signals in the second operation mode and the third operation mode.
In other words, a second driver adapted to the second motor 443 is integrated in the second circuit board 492, and at least a portion of the second control unit constitutes at least a portion of the second driver, which can be used to control power on, power off, braking, rotational speed, steering, current (or torque), sense and protect the second motor 443 from overcurrent, overvoltage, overheat, and the like.
The electronic components are implemented by hardware or a combination of hardware and software, that is, the th general control unit, the th control unit, the second general control unit and the second control unit are respectively defined as hardware or a combination of hardware and software required for executing respective functions (such as outputting signals, receiving signals, controlling, etc.).
Compared with the prior art, the power assembly 400 of the embodiment has the following beneficial effects:
(1) the double fans with the parallel air paths are arranged, so that the suction force of the power assembly 400 is increased, the power assembly 400 is arranged in a modularized manner, a case which is respectively matched with the fan 43 and the second fan 44 does not need to be specially designed as in the prior art , the fan 43, the second fan 44, the circuit board 491 and the second circuit board 492 can be synchronously assembled on the whole machine body along with the case, the assembly and disassembly are convenient, the probability of insufficient suction force of a cleaning tool caused by poor assembly is reduced, and the universality of the power assembly 400 in different cleaning tools is improved;
(2) by arranging the second sealing element 46 and the third sealing element 47, the sealing connection between the supporting plate 41 and the blower 43 and between the supporting plate 41 and the second blower 44 can be respectively realized, the sealing performance of the power assembly 400 is improved, and the suction force of the power assembly 400 is ensured;
(3) by making the second assembling portion 4221 and the second assembling portion 1221 have the same mating structure, the th fan 43 and the second fan 44 can have the same structure, and the positions of the two fans can be interchanged without affecting the assembling, which is convenient for assembling and disassembling.
Example 5
Referring to fig. 16 to 18, a power module 500 according to an embodiment of the present invention is shown, where the power module 500 has substantially the same structure as the power module 400 of embodiment 4, and includes a housing, a th fan 53, a second fan 54, a th circuit board 591, and a second circuit board 592, and these components correspond to the housing, the th fan 43, the second fan 44, the th circuit board 491, and the second circuit board 492 of the power module 400 of embodiment 4, and can be understood by referring to the description of embodiment 4.
Only the differences between the power assembly 500 of the present embodiment and the power assembly 400 of embodiment 4 will be described, and the other parts/structures that are the same as those of embodiment 4 will not be described again.
Specifically, in the present embodiment, the th fan 53 omits the th wind scooper 431 compared to the th fan 43 in embodiment 4, that is, the th fan 53 includes a th fan blade 532 and a th motor 533.
In the aspect of the supporting plate 51 adapted to the th fan 53, the th annular platform of the th assembling portion 2122 is in sealing fit with the front end of the th motor 533, specifically, the inner surface of the th annular platform is in close fit and interference fit with the outer surface of the front end of the th motor 533, the th fan blade 532 is disposed in the th assembling cavity 5124 of the th assembling portion 5122, and the th fan blade 532 is in transmission connection with the th motor 533, when the th motor 533 is started, the th motor 533 provides power to drive the th fan blade 532 to rotate around the central axis V51, so as to form an air flow from the th air outlet 513 to the th air outlet 53.
Similarly, in the present embodiment, compared to the second fan 44 in embodiment 4, the second fan 54 omits the second wind scooper, that is, the second fan 54 includes a second fan blade 542 and a second motor 543.
In the support plate 51 adapted to the second fan 54, a second annular table of the second mounting portion 5221 is sealingly fitted to the front end portion of the second motor 543, and specifically, an inner surface of the second annular table is closely fitted to and interference fitted to an outer surface of the front end portion of the second motor 543; the second blade 542 is disposed in the second mounting cavity 5224 of the second mounting portion 5221, and the second blade 542 is drivingly connected to the second motor 543, when the second motor 543 is started, the second motor 543 provides power to drive the second blade 542 to rotate around the central axis V52, so as to form an air flow from the second air opening 514 to the air outlet of the second fan 54. In this way, during the assembly process of the power assembly 500, the second fan 542 and the second motor 543 may be directly assembled, and then the second motor 543 is hermetically coupled to the second annular table from the rear to the front, so that the third seal 47 in embodiment 4 is omitted compared with embodiment 4.
Compared with the prior art, the power assembly 500 of the present embodiment has the same advantages as those of embodiment 4, and compared with embodiment 4, the present embodiment also has the advantages of simpler connection manner between the th fan 53, the second fan 54 and the housing, more convenient assembly and better sealing performance.
Example 6
Referring to fig. 19 to 21, a power module 600 according to an embodiment of the present invention is shown, wherein the power module 600 has a structure substantially the same as that of the power module 500 of embodiment 5.
Specifically, the power module 600 includes a housing, an th fan 63 and a second fan 646, which correspond to the housing, the th fan 53 and the second fan 54 of the power module 500 in embodiment 5 in the order of , and which can be understood with reference to the description of embodiment 5.
Only the differences between the power assembly 600 of the present embodiment and the power assembly 500 of embodiment 5 will be described, and the other parts/structures that are the same as those of embodiment 5 will not be described again.
Specifically, in this embodiment, , the power module 600 includes a -type circuit board 690, the circuit board 690 controlling the operation of the th fan 63 and the second fan 64, the circuit board 690 may be specifically assembled and fixed to the 1 st fan 63, the second fan 64 and at least thereof of the housing, in this embodiment, the circuit board 690 is assembled and fixed to the th fan 63 and the second fan 64, which includes a rd portion located at the rear side of the second fan 64 and a second portion located at the rear side of the th fan 63, that is, the th fan 63 and the second fan 64 in this embodiment are operated by being controlled by the circuit board 690, and in other words, the power module 600 of this embodiment may be compared with embodiment 635, not only integrate the th circuit board 591 and the second circuit board 592 into the same circuit boards, but also integrate the general control unit 591 and the second circuit board of the embodiment 5 into the same general control unit , so that the cost of the fans can be reduced by using the second circuit board 3934 and the second fan 9664 for controlling the fan components.
Specifically, the circuit board 690 includes a board body provided with bodies, and a plurality of electronic components including a common unit, a th control unit, and a second control unit provided to the board body.
The power assembly 600 has a working mode, a second working mode and a third working mode, wherein in the working mode, the common unit, the 0 control unit and the 1 fan 63 are in electric signal connection, at this time, the common unit, the second control unit and the second fan 64 are not in electric signal connection, and only the fan 63 in the fan 63 and the second fan 64 operates independently, in the second working mode, the common unit, the control unit and the fan 63 are not in electric signal connection, at this time, the common unit, the second control unit and the second fan 64 are in electric signal connection, and only the second fan 64 in the fan 63 and the second fan 64 operates independently, in the third working mode, the common unit, the control unit and the fan 63 are in electric signal connection, and at the same time, the common unit, the second control unit and the second fan 64 are also in electric signal connection, and the and the second fan 64 operate simultaneously.
, the th blower 63 includes a th motor 633, the th motor 633 is a brushless motor, and the electromechanical energy conversion structure is provided.
Specifically, the common unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal, and a speed command signal, the th control unit is configured to receive a signal from the common unit and control the st motor 633 according to the received signal when the th and third operating modes are operated, for example, the th control unit receives the power supply signal from the common unit and then controls the th motor 633 to be powered on, or receives the start/stop command signal from the common unit and then controls the th motor 633 to be powered on, or receives the brake command signal from the common unit and then controls the th motor 633 to be braked, or receives the sensing command signal from the common unit and then controls a sensor (e.g., a position sensor) of the th motor 633 to sense, or receives the speed command signal from the common unit and then controls the th motor 633 to adjust the rotation speed, or the like.
Similarly, the second fan 64 includes a second motor 643, and the second motor 643 is a brushless motor and is of an electromechanical energy conversion structure.
Specifically, the common unit is configured to output or more of a power supply signal, a start/stop command signal, a brake command signal, a sensing command signal, and a speed command signal, and the second control unit is configured to receive a signal from the common unit and control the second motor 643 according to the received signal, for example, the second control unit receives the power supply signal from the common unit and controls the second motor 643 to be connected to the power supply signal, or receives the start/stop command signal from the common unit and controls the second motor 643 to be started or stopped, or receives the brake command signal from the common unit and controls the second motor 643 to be braked, or receives the sensing command signal from the common unit and controls a sensor (e.g., a position sensor) of the second motor 643 to sense, or receives the speed command signal from the common unit and controls the second motor 643 to adjust the rotating speed.
It should be noted that the naming of the structure in the present application does not constitute a limitation to the technical solution of the present application, for example, the present embodiment may also be replaced by disclosing that the power assembly 600 includes a brushless motor and a second brushless motor, wherein the brushless motor includes a th motor 633 and a th driver, a th motor 633 constitutes a part of the th fan 63, the driver constitutes the th control unit (i.e., the th control unit may be referred to as the th driver), the second brushless motor includes a second motor 643 and a second driver, the second motor 643 constitutes a part of the second fan 64, the second driver constitutes the second control unit (i.e., the second control unit may be referred to as the second driver), the common unit is used for controlling the th motor via the second driver and controlling the second motor 643 via the second driver, the common unit may be referred to as the second control unit may be referred to as the second driver), the cost of the second control unit may be reduced by combining the brushless motor with the second brushless motor driver 59648, the common unit and the common unit may be used for reducing the cost of the brushless motor control cost of the brushless motor 690 and the common unit by combining the second fan 690, which may be referred to be reduced by the second control circuit board 26, and the common unit, which may be referred to as a common unit, and the common unit, compared.
The electronic components are implemented in hardware or a combination of hardware and software, that is, the common unit, the th control unit and the second control unit are respectively defined as hardware or a combination of hardware and software required for executing respective functions (such as outputting signals, receiving signals, controlling, etc.).
Compared with the prior art, the power assembly 600 of the present embodiment has the same advantages as those of embodiment 5, and compared with embodiment 5, the present embodiment also has the following advantages that the operation of the fan 63 and the second fan 64 is controlled by sharing the same circuit board 690, in other words, the driver of the brushless motor and the second driver of the second brushless motor are integrated into the same circuit board 690 with the main control function, so that the control cost of the fan 63 and the second fan 64 is reduced, and part of the same elements on the circuit board 690 are shared as the main control unit to the maximum extent, thereby simplifying the structural design and reducing the cost.
It should be understood that although the present description is described in terms of embodiments, not every embodiment contains independent technical solutions, and such description is only for clarity, and those skilled in the art should take the description as as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
The series of detailed descriptions above are only specific to the feasible embodiments of the present invention, they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims (12)

  1. The power assembly is characterized by comprising a shell, a fan, a second fan and a circuit board, wherein the fan and the second fan are assembled on the shell, the circuit board comprises a -body floor body and a plurality of electronic elements arranged on the floor body, and the electronic elements comprise a common unit, a -th control unit and a second control unit;
    the power assembly is provided with an th working mode, a second working mode and a third working mode, wherein in the th working mode, the common unit, the th control unit and the th fan are in electric signal connection, and the th fan operates independently, in the second working mode, the common unit, the second control unit and the second fan are in electric signal connection, and the second fan operates independently, in the third working mode, the common unit, the th control unit and the th fan are in electric signal connection, and the common unit, the second control unit and the second fan are in electric signal connection, and the th fan and the second fan operate simultaneously.
  2. 2. The power assembly of claim 1, wherein the common unit is configured to output or more of a power supply signal, a start stop command signal, a brake command signal, a sense command signal, a speed command signal, the control unit is configured to receive signals from the common unit and control the fan in accordance with the received signals in the mode of operation and the third mode of operation, the second control unit is configured to receive signals from the common unit and control the second fan in accordance with the received signals in the second mode of operation and the third mode of operation;
    the th fan and the second fan each include a brushless motor.
  3. 3. The power assembly of claim 1, wherein the housing, the th fan and the second fan are combined to form a modular unit, and the circuit board is fixedly assembled to at least of the housing, the th fan and the second fan.
  4. 4. The power assembly of claim 3, wherein the housing includes a mating portion to mate with the th fan and a second mating portion to mate with the second fan, the mating portion and the second mating portion having the same mating structure.
  5. 5. The power assembly of claim 1, wherein the fan path and the second fan path are in parallel;
    the casing comprises a supporting plate, the supporting plate is provided with an th air opening, a second air opening, a front side surface and a rear side surface opposite to the front side surface, and the th air opening and the second air opening respectively penetrate through the front side surface and the rear side surface;
    the th fan and the second fan are arranged side by side on the rear side of the supporting plate, the th fan is in sealed butt joint with the th air port, and the second fan is in sealed butt joint with the second air port.
  6. 6. The power assembly of claim 1, wherein the fan path and the second fan path are in series;
    the shell is provided with an th air port, a second air port and an air cavity formed inside the shell, the air cavity is arranged between the th air port and the second air port, the th fan is contained in the air cavity and is in sealing butt joint with the th air port, and the second fan is arranged outside the shell and is in sealing butt joint with the second air port.
  7. 7. A power assembly according to claim 6, wherein the housing comprises a support plate having the th tuyere and a casing having the second tuyere, the support plate and the casing being sealingly assembled and enclosing the tuyere chamber;
    the supporting plate comprises a front side surface and a rear side surface opposite to the front side surface, the rear side surface is provided with an adapting part, and the front edge of the housing is in inserting fit with the adapting part;
    the matching and connecting part is arranged to be a groove and is in plug-in fit with the front edge of the housing, or the matching and connecting part is arranged to be a convex rib and the housing is provided with a groove matched with the convex rib.
  8. 8. A power assembly according to claim 5 or 7, wherein the rear side of the support plate is provided with an th mounting portion, the th mounting portion has a th annular platform surrounding the th tuyere and projecting rearwardly and a th mounting cavity surrounded by the th annular platform;
    the shell comprises an th limiting part, and the th fan comprises a th limited part;
    the nd limiting portion is adapted to the th limited portion to prevent movement of the th fan away from the support plate when the th fan is inserted into the th mounting cavity.
  9. 9. The power assembly as claimed in claim 8, wherein the th fan comprises a th fan blade and a th electric motor for driving the th fan blade to rotate, the th fan blade is arranged in the th assembling cavity, and the th annular table is in interference fit with and tightly attached to the th electric motor.
  10. 10. The power assembly according to claim 7, wherein the housing comprises a second limiting portion, a hood portion covering the th fan and a second hood portion provided with the second air opening, the second hood portion comprises a second assembling portion, the second assembling portion comprises a second annular platform surrounding the second air opening and protruding backwards and a second assembling cavity surrounded by the second annular platform, the second fan comprises a second limited portion, and the second limiting portion and the second limited portion are matched to prevent the second fan from moving away from the housing when the second fan is inserted into the second assembling cavity;
    the second limited part is a protruding structure formed on the outer surface of the second fan, the second limited part is a hanging lug extending backwards from the rear edge of the second annular table, and the hanging lug is provided with a limit hole matched with the protruding structure.
  11. 11, kind of power components, characterized by, the power component includes casing, motor, second motor and circuit board, the circuit board includes body setting floor body and the total accuse unit of laying in the board body, the motor includes motor and the driver of integration in the circuit board, the second motor includes the second motor and the second driver of integration in the circuit board;
    the power assembly is provided with an th working mode, a second working mode and a third working mode, wherein in the th working mode, the master control unit controls the th motor to independently operate through the th driver, in the second working mode, the master control unit controls the second motor to independently operate through the second driver, in the third working mode, the master control unit controls the th motor to operate through the th driver, and in the meantime, the master control unit controls the second motor to operate through the second driver.
  12. 12, a cleaning implement comprising a body, characterized in that the cleaning implement further comprises a power assembly according to claim 1 or 11, the power assembly being modularly assembled to the body.
CN201920416742.0U 2019-03-29 2019-03-29 Power assembly and cleaning tool with same Active CN209996201U (en)

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Application Number Priority Date Filing Date Title
CN201920416742.0U CN209996201U (en) 2019-03-29 2019-03-29 Power assembly and cleaning tool with same

Publications (1)

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CN209996201U true CN209996201U (en) 2020-01-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109846424A (en) * 2019-03-29 2019-06-07 天佑电器（苏州）有限公司 Power Component and burnisher with the Power Component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109846424A (en) * 2019-03-29 2019-06-07 天佑电器（苏州）有限公司 Power Component and burnisher with the Power Component

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