Motor flow guide and dust collection equipment

Abstract

The present application relates to a kind of motor flow guide and dust collection equipment, belong to the technical field of household appliances, to solve the problem that the existing motor components inlet and outlet gas needs two different components to realize.The motor flow guide of the present application, including: air inlet passage, with the air inlet of motor assembly communication, to be directed to motor assembly with fluid;And exhaust passage, with the air outlet of motor assembly communication, to be directed away with the fluid that motor assembly is discharged;Wherein, the air inlet passage is equipped with first air inlet and first air outlet, the first air outlet with the air inlet of motor assembly communication;The exhaust passage is equipped with second air inlet and second air outlet, the second air inlet with the air outlet of motor assembly communication.The motor flow guide of the present application is equipped with air inlet passage and exhaust passage simultaneously, without being respectively arranged in motor assembly outside respectively air inlet tube and air outlet tube, can effectively reduce the volume and length of dust collection equipment, make the layout of dust collection equipment more compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a motor flow guide and a dust collection device. BACKGROUND

[0002] At present, in the existing dust collection device, the air inlet and air outlet of the motor assembly are realized through two different components (for example, air inlet pipe and air outlet pipe), which are respectively located at the front end and rear end of the motor assembly. The fluid filtered by the filter assembly enters the inside of the motor component through the air inlet pipe, and the fluid discharged by the motor component is guided out of the dust collection device through the air outlet pipe. However, due to the relatively large length or volume of the air inlet pipe and the air outlet pipe, the length or volume of the dust collection device is correspondingly increased, which affects the use feeling and overall layout of the dust collection device. SUMMARY

[0003] In view of the above analysis, the embodiments of the present application aim to provide a motor flow guide and a dust collection device to solve the problem that the air inlet and air outlet of the existing motor component need to be realized through two different components.

[0004] In one aspect, the present application provides a motor flow guide, comprising:

[0005] An air inlet channel, in communication with the air inlet of the motor assembly, for guiding fluid to the motor assembly;

[0006] An air outlet channel, in communication with the air outlet of the motor assembly, for guiding fluid discharged by the motor assembly away;

[0007] Wherein, the air inlet channel is provided with a first air inlet and a first air outlet, and the first air outlet is in communication with the air inlet of the motor assembly; the air outlet channel is provided with a second air inlet and a second air outlet, and the second air inlet is in communication with the air outlet of the motor assembly.

[0008] Further, the motor flow guide comprises a first end and a second end, the first end is connected with the motor assembly, and the second end is away from the motor assembly;

[0009] The first air inlet is arranged on the side wall of the motor flow guide;

[0010] The first air outlet is arranged at the first end;

[0011] The second air inlet is arranged at the first end;

[0012] The second air outlet is arranged at the second end.

[0013] Further, the number N of the air outlet channels is greater than or equal to 1;

[0014] When N=1, the exhaust passage is located outside the air intake passage, and the first air intake port is formed between the two side walls of the exhaust passage;

[0015] When N≥2, the exhaust passage is located outside the air intake passage, and the first air intake port is formed between the side walls of at least two adjacent exhaust passages.

[0016] Further, when N≥2, the exhaust passages are uniformly located outside the air intake passage, and the first air intake port is formed between the side walls of two adjacent exhaust passages.

[0017] Further, the outer side wall of the exhaust passage constitutes part of the side wall of the motor flow guide, and the inner side wall of the exhaust passage forms the side wall of the air intake passage.

[0018] Further, the second end is provided with a cover plate, and the cover plate is provided with the second air outlet;

[0019] The first end is provided with a lap joint portion, and the lap joint portion is provided with the first air outlet and the second air intake port.

[0020] Further, the cover plate sealing cover is located at the end of the air intake passage away from the first air outlet.

[0021] Further, the cover plate includes a central portion and an extension portion, the extension portion is located outside the central portion, the central portion corresponds to the air intake passage, and the extension portion corresponds to the first air intake port.

[0022] Further, the cover plate is provided with a ring wall portion on the side away from the air intake passage, the ring wall portion is located outside the cover plate and the second air outlet, and the ring wall portion constitutes part of the side wall of the motor flow guide.

[0023] Further, the side wall of the motor flow guide is provided with a convex rib portion.

[0024] Further, the bottom end face of the lap joint portion is provided with a fitting groove, and the fitting groove is located outside each second air intake port.

[0025] Further, the bottom end face of the lap joint portion is arched from the outer edge to the center, and the first air outlet is located at the center.

[0026] Further, the top end face of the lap joint portion is provided with an annular protrusion.

[0027] Further, the first air intake port extends from the side wall of the motor flow guide to the annular protrusion.

[0028] In another aspect, the application provides a dust collection device comprising the above-mentioned motor flow guide.

[0029] Further, the dust collection equipment further comprises a motor assembly and a filter assembly;

[0030] The motor assembly is connected with the motor flow guide, and is provided with an air inlet and an air outlet.

[0031] The filter assembly comprises a filter part and an exhaust part.

[0032] Further, the motor assembly comprises a first cavity, a second cavity and a motor part.

[0033] The first cavity is provided with the air inlet in communication therewith, so as to guide fluid into the motor assembly.

[0034] The second cavity is provided with the air outlet in communication therewith, so as to guide fluid out of the motor assembly.

[0035] The motor part comprises an air inlet end and an air outlet end.

[0036] The first cavity and the second cavity are provided with a communication channel or a communication opening capable of communicating the first cavity and the second cavity.

[0037] Further, the second cavity is located outside the first cavity.

[0038] Further, the motor assembly comprises a shell, a ring wall and a cover.

[0039] Further, the cover is connected with the overlapping part of the motor flow guide.

[0040] The cover is provided with the air inlet and the air outlet.

[0041] An assembly strip is arranged on an outer end surface of the cover and is matched with an assembly groove of the overlapping part.

[0042] Compared with the prior art, the present application can achieve at least one of the following beneficial effects:

[0043] (1) The motor flow guide is provided with an air inlet channel and an air outlet channel at the same time, without the need to separately provide an air inlet pipe and an air outlet pipe outside the motor assembly, which can effectively reduce the size and length of the dust collection equipment, and make the layout of the dust collection equipment more compact and the use more comfortable;

[0044] (2) The fluid in the dust collection equipment enters the air inlet end through the air inlet, and is finally discharged outside the dust collection equipment through the exhaust hole by the rear end of the exhaust part, the air outlet channel, the second cavity, the air outlet, the exhaust channel, the exhaust part and the rear end of the dust collection equipment, effectively lengthening the flow path of the fluid between the air outlet and the exhaust, and achieving good noise reduction effect;

[0045] (3) The second cavity of the motor assembly of the dust collection equipment is located outside the first cavity, and the heat generated by the operation of the motor part can be diffused into the second cavity, which can take out the heat in the second cavity when the fluid passes through the second cavity, so as to achieve good heat dissipation effect. In addition, the buffer through the second cavity outside can also eliminate the vibration generated by the operation of the motor part, so as to achieve the effect of reducing vibration and improve the use feeling of the motor assembly.

[0046] In the present application, the above-mentioned technical solutions can be combined with each other to realize more preferred combination schemes. Other features and advantages of the present application will be described in the subsequent specification, and some advantages will become apparent from the specification, or will be understood by implementing the present application. The purpose and other advantages of the present application can be achieved and obtained by the contents specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0048] Figure 1 Structure schematic view of the motor flow guide of the specific embodiment (I);

[0049] Figure 2 Structure schematic view of the motor flow guide of the specific embodiment (II);

[0050] Figure 3 Structure schematic view of the motor flow guide of the specific embodiment (III);

[0051] Figure 4 Longitudinal sectional view of the motor flow guide of the specific embodiment;

[0052] Figure 5 Transverse sectional view of the motor flow guide of the specific embodiment;

[0053] Figure 6 Transverse sectional view of the exhaust channel of the motor flow guide of the specific embodiment when only one exhaust channel is provided;

[0054] Figure 7 partial longitudinal sectional view of the dust collection device of the specific embodiment (the arrowed line in the figure represents the flow direction of fluid);

[0055] Figure 8 partial transverse sectional view of the dust collection device of the specific embodiment;

[0056] Figure 9 schematic diagram of the combined structure of the motor assembly, the filter assembly and the motor flow guide of the specific embodiment;

[0057] Figure 10 combined sectional view of the motor assembly, the filter assembly and the motor flow guide of the specific embodiment;

[0058] Figure 11 schematic diagram of the structure of the motor assembly of the specific embodiment with the motor component removed;

[0059] Figure 12 schematic diagram of the structure of the cover of the specific embodiment.

[0060] Reference signs:

[0061] 1 - air inlet channel; 101 - first air inlet; 102 - first air outlet; 2 - air outlet channel; 201 - second air inlet; 202 - second air outlet; 3 - cover plate; 31 - central part; 32 - extension part; 33 - reinforcing rib; 4 - lap joint part; 41 - assembly groove; 42 - annular protrusion; 5 - annular wall part; 6 - convex rib part; 7 - motor assembly; 701 - air inlet; 702 - air outlet; 71 - first cavity; 72 - second cavity; 73 - motor component; 731 - air inlet end; 732 - air outlet end; 74 - shell; 75 - annular wall; 751 - communication port; 752 - support strip; 76 - cover; 761 - air inlet area; 762 - air outlet area; 763 - assembly strip; 8 - filter assembly; 81 - filter part; 82 - air outlet part. DETAILED DESCRIPTION

[0062] The preferred embodiments of the present application will be described in detail with reference to the drawings, in which the same or similar components are denoted by the same reference numerals, and therefore the description will be given only with respect to the differences from the previous embodiments. The preferred embodiments of the present application will be described in detail with reference to the drawings, in which the same or similar components are denoted by the same reference numerals, and therefore the description will be given only with respect to the differences from the previous embodiments.

[0063] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connected" should be understood in a broad sense, for example, it can be fixedly connected, or detachably connected, or integrally connected, which can be mechanically connected, or electrically connected, which can be directly connected, or indirectly connected through an intermediate medium. Those skilled in the art can understand the specific meaning of the above-mentioned term in the present application according to the specific circumstances.

[0064] The terms "top", "bottom", "above", "under" and "on" used throughout the description are relative to the relative position of the components of the device, for example the relative position of the top and bottom substrates inside the device. It is understood that the devices are multifunctional, regardless of their orientation in space.

[0065] The general working surface of the present application can be flat or curved, can be inclined or horizontal. For the convenience of description, the embodiments of the present application are placed on and used on a horizontal plane, and "high and low" and "up and down" are defined accordingly.

[0066] Embodiment one

[0067] The present embodiment provides a motor flow guide, as shown in the figure, comprising: Figures 1-6

[0068] The air inlet channel 1 is in communication with the air inlet of the motor assembly to guide the fluid to the motor assembly;

[0069] The air outlet channel 2 is in communication with the air outlet of the motor assembly to guide the fluid discharged by the motor assembly away;

[0070] The air inlet channel 1 is provided with a first air inlet 101 and a first air outlet 102, and the first air outlet 102 is in communication with the air inlet of the motor assembly; the air outlet channel 2 is provided with a second air inlet 201 and a second air outlet 202, and the second air inlet 201 is in communication with the air outlet of the motor assembly.

[0071] Compared with the prior art, the motor flow guide of the present application is provided with an air inlet channel 1 and an air outlet channel 2 at the same time, without the need to separately provide air inlet and air outlet pipe fittings outside the motor assembly, which can effectively reduce the volume and length of the equipment provided with the motor assembly (such as dust collection equipment), so that the layout of these equipment is more compact and the use is better.

[0072] The fluid in the air inlet channel 1 and the air outlet channel 2 does not interfere with each other, that is, the air inlet channel 1 and the air outlet channel 2 are independent of each other to ensure smooth air intake and air exhaust of the motor assembly without turbulence.

[0073] The motor flow guide comprises a first end and a second end, the first end is connected with the motor assembly, and the second end is away from the motor assembly.

[0074] The first air inlet 101 is arranged on the side wall of the motor flow guide, and the first air outlet 102 is arranged at the first end of the motor flow guide. The second air inlet 201 and the second air outlet 202 are arranged at the two ends of the motor flow guide respectively, and the second air inlet 201 and the first air outlet 102 are located at the same end of the motor flow guide, that is, the second air inlet 201 is located at the first end of the motor flow guide, and the second air outlet 202 is located at the second end of the motor flow guide.​

[0075] The number of exhaust passages 2 is N≥1. When N=1, the exhaust passage 2 is located outside the air inlet passage 1, and a gap between the two side walls of the exhaust passage 2 forms a first air inlet 101 for the air inlet passage 1. When N≥2, the exhaust passage 2 is arranged outside the air inlet passage 1, and at least two adjacent exhaust passages 2 form a gap between the side walls of the exhaust passages 2, which forms a first air inlet 101 for the air inlet passage 1.

[0076] In order to ensure smooth air intake of the air inlet passage 1, when N≥2, the exhaust passages 2 are uniformly arranged outside the air inlet passage 1, and the first air inlets 101 are formed between the side walls of the two adjacent exhaust passages 2, that is, the number of first air inlets 101 is equal to the number of exhaust passages 2 at this time.

[0077] In some embodiments, when N=1, at least a part of the cross section (the cross section is perpendicular to the direction of fluid flow) of the exhaust passage 2 is in the shape of a non-closed ring, as shown in FIG. 1B, that is, the ring has a break, and the first air inlet 101 is formed at the break. It should be noted that the non-closed ring can be a non-closed circular ring or other shapes suitable for fluid flow. Figure 6

[0078] In order to reduce the volume of the motor flow guide, the outer side wall (the side wall away from the central axis of the motor flow guide) of the exhaust passage 2 forms part of the side wall of the motor flow guide, and the inner side wall (the side wall close to the central axis of the motor flow guide) of the exhaust passage 2 forms the side wall of the air inlet passage 1, that is, the side wall of the air inlet passage 1 is surrounded by the exhaust passage 2.

[0079] In this embodiment, the number of exhaust passages 2 is 5, which uniformly surrounds the air inlet passage 1, and 5 first air inlets 101 are formed between the 5 exhaust passages 2, that is, the air inlet passage 1 is limited by the exhaust passages 2, and the first air inlets 101 are limited between the side walls of the two adjacent exhaust passages 2.

[0080] In this embodiment, the cross section of the exhaust passage 2 is in the shape of a fan, that is, the exhaust passage 2 includes an outer arc wall, an inner arc wall, and left and right side walls connecting the inner and outer arc walls, that is, the left side wall, the outer arc wall, the inner arc wall, and the right side wall jointly surround the fan-shaped exhaust passage 2. The outer arc walls of all exhaust passages 2 form part of the side wall of the motor flow guide, and the inner arc walls of all exhaust passages 2 form the side wall of the air inlet passage 1.

[0081] ​In this embodiment, the central axis of the air inlet channel 1 coincides with the central axis of the motor flow guide, and the first air inlet 101 extends outward from the side wall of the air inlet channel 1 along the radial direction of the central axis of the air inlet channel 1 to communicate the space outside the side wall of the motor flow guide with the air inlet channel 1. The first air inlet 101 extends from one end of the side wall of the air outlet channel 2 to the other end, that is, the length of the first air inlet 101 is not less than the length of the side wall of the air outlet channel 2. The center of the cross-sectional sector of the air outlet channel 2 is located on the central axis of the motor flow guide.

[0082] The motor flow guide is provided with a cover plate 3 and a lap joint portion 4 at two ends respectively, the cover plate 3 is provided with a second air outlet 202, and the lap joint portion 4 is provided with a first air outlet 102 and a second air inlet 201. That is, the cover plate 3 is located at the second end of the motor flow guide, the lap joint portion 4 is located at the first end of the motor flow guide, and the motor flow guide is connected with the motor assembly through the lap joint portion 4.

[0083] The cover plate 3 is sealingly arranged at one end of the air inlet channel 1 and the first air inlet 101 away from the first air outlet 102, so that the fluid entering the air inlet channel 1 from the first air inlet 101 can only be guided to the air inlet of the motor assembly by the first air outlet 102.

[0084] In this embodiment, the projection of the cover plate 3 in the direction of the lap joint portion 4 can completely cover the air inlet channel 1 and the first air inlet 101, so as to ensure that the fluid entering the air inlet channel 1 cannot flow from the cover plate 3, but can only flow to the motor assembly through the first air outlet 102.

[0085] Specifically, the cover plate 3 includes a central portion 31 and an extension portion 32, the extension portion 32 is located outside the central portion 31, the central portion 31 corresponds to the air inlet channel 1, and the extension portion 32 corresponds to the first air inlet 101. That is, the central portion 31 is sealingly arranged at one end of the air inlet channel 1 away from the first air outlet 102, and the extension portion 32 is sealingly arranged at one end of the first air inlet 101 away from the first air outlet 102.

[0086] In this embodiment, when the cover plate 3 is projected in the direction of the lap joint portion 4, the central portion 31 can cover the air inlet channel 1, and the extension portion 32 can cover the first air inlet 101.

[0087] It should be noted that the number of extension portions 32 is the same as the number of first air inlets 101, so as to completely cover one end of the first air inlet 101. In this embodiment, the number of extension portions 32, first air inlets 101 and air outlet channels 2 is the same.

[0088] The cover plate 3 cooperates with the side wall of the motor flow guide to limit the second air outlet 202, and the cover plate 3 is sealingly connected with the outer wall surface of the side wall of the air outlet channel 2, so as to ensure that the fluid entering the air inlet channel 1 leaks from the cover plate 3, and at the same time, the fluid in the air outlet channel 2 is discharged from the second air outlet 202 and does not penetrate into the air inlet channel 1.

[0089] Specifically, the center part 31, the extension part 32 and the side wall of the motor flow guide jointly limit the second air outlet 202. The center part 31 is sealingly connected with the inner side wall of the exhaust passage 2, one end of the extension part 32 is connected with the center part 31, and the other end of the extension part 32 is sealingly connected with the side wall of the motor flow guide. When N = 1, the left and right side walls of the extension part 32 are respectively sealingly connected with the left and right side walls of the exhaust passage 2. When N ≥ 2, the left and right side walls of the extension part 32 are respectively sealingly connected with the left and right side walls of the adjacent two exhaust passages 2.

[0090] In order to improve the stability of the cover plate 3, the cover plate 3 is further provided with a reinforcing rib 33, and the reinforcing rib 33 is arranged on the second air outlet 202. Specifically, the two ends of the reinforcing rib 33 are connected with the left and right port walls of the second air outlet 202. When N = 1, the two ends of the reinforcing rib 33 are connected with the left and right side walls of the extension part 32. When N ≥ 2, the two ends of the reinforcing rib 33 are respectively connected with the left and right side walls of the adjacent two extension parts 32.

[0091] Further, the reinforcing rib 33 is in the shape of a circular arc, and the center of the circular arc is located on the central axis of the motor flow guide. In the embodiment, the radius of the reinforcing rib 33 is greater than the radius r of the inner arc wall of the exhaust passage 2 and less than the radius R of the outer arc wall of the exhaust passage 2. Most preferably, the radius of the reinforcing rib 33 = r + (R-r) / 2.

[0092] The cover plate 3 is provided with a ring wall part 5 on the side away from the air inlet passage 1. The ring wall part 5 is arranged outside the cover plate 3 and the second air outlet 202 and constitutes part of the side wall of the motor flow guide, so as to facilitate the connection between the motor flow guide and other components (for example, the rear end of the dust collection equipment).

[0093] In the embodiment, the cover plate 3 is perpendicular to the central axis of the motor flow guide, the ring wall part 5 is perpendicular to the cover plate 3, and the central axis of the ring wall part 5 coincides with the central axis of the motor flow guide. The outer wall surface of the ring wall part 5 is flush with the outer wall surface of the outer arc wall of the exhaust passage 2, and the inner wall surface of the ring wall part 5 is flush with the inner wall surface of the outer arc wall of the exhaust passage 2, that is, the thickness of the ring wall part 5 is the same as the thickness of the outer arc wall of the exhaust passage 2, and they are connected in alignment, so as to avoid the influence of the ring wall part 5 on the exhaust of the second air outlet 202.

[0094] It should be noted that in the embodiment, the outer arc wall of the exhaust passage 2 and the ring wall part 5 jointly constitute the side wall of the motor flow guide, and the first air inlet 101 does not extend to the ring wall part 5, that is, the bottom end surface of the ring wall part 5 is flush with the bottom end surface of the cover plate 3, and the fluid in the air inlet passage 1 cannot enter the space surrounded by the ring wall part 5 and the cover plate 3.

[0095] The side wall of the motor flow guide is provided with a convex rib 6, so that when the motor flow guide is connected with other components, a certain gap is reserved between the side wall of the motor flow guide and other components, so as to ensure that the fluid can smoothly enter the air inlet channel 1 from the first air inlet 101 opened on the side wall.

[0096] The side wall of the motor flow guide is provided with a plurality of convex ribs 6, which are uniformly distributed on the side wall, so as to ensure smooth air intake of the first air inlet 101.

[0097] Specifically, the convex rib 6 extends from one end of the side wall of the motor flow guide to the other end, preferably, the convex rib 6 extends in a straight line, more preferably, the convex rib 6 is parallel to the central axis of the motor flow guide.

[0098] In this embodiment, the convex rib 6 extends in a straight line and is parallel to the central axis of the motor flow guide, the convex rib 6 extends from the ring wall 5 to the outer arc wall of the exhaust channel 2, and the length of the convex rib 6 is equal to the sum of the lengths of the ring wall 5 and the outer arc wall of the exhaust channel 2. The number of convex ribs 6 is the same as the number of exhaust channels 2, and the convex rib 6 is located at the middle position of the outer arc wall of the exhaust channel 2, so as to ensure that each first air inlet 101 uniformly and smoothly intakes air.

[0099] The lap joint part 4 is located at one end of the motor flow guide provided with the first air outlet 102 and the second air inlet 201, and the motor flow guide is connected with the motor assembly through the lap joint part 4, so the shape of the lap joint part 4 is matched with the shape of the motor assembly.

[0100] Specifically, the bottom end face (the end face close to the motor assembly) of the lap joint part 4 is provided with the first air outlet 102 and the second air inlet 201, the first air outlet 102 is sealingly connected with the air inlet of the motor assembly, and the second air inlet 201 is sealingly connected with the air outlet of the motor assembly, and the shape of the bottom end face of the lap joint part 4 is matched with the shape of the end of the motor assembly provided with the air inlet and the air outlet, so as to ensure that the air inlet and the air outlet of the motor assembly are smooth and do not interfere with each other.

[0101] The bottom end face of the lap joint part 4 is provided with a fitting groove 41, and the lap joint part 4 is clamped with the motor assembly through the fitting groove 41, specifically, the fitting groove 41 is arranged outside each second air inlet 201, so as to ensure that the fluid discharged by the motor assembly enters the exhaust channel 2 through the second air inlet 201, avoiding fluid leakage.

[0102] The top end face of the lap joint part 4 is provided with an annular protrusion 42, so as to connect the motor flow guide with other components, and the center of the annular protrusion 42 is located on the central axis of the motor flow guide.

[0103] The first air inlet 101 extends from the side wall of the motor flow guide to the annular protrusion 42 of the lap joint 4, so as to shorten the path of the external fluid guiding the air inlet channel 1, and thus accelerate the fluid guiding the air inlet channel 1. In addition to the assembly function, the annular protrusion 42 also plays a role in improving the stability of the motor flow guide.

[0104] The bottom end surface of the lap joint 4 is arched from the outer edge to the center, and the first air outlet 102 is located at the center. The shape of the second air inlet 201 is also arched upward, guiding the fluid discharged by the motor to be introduced into the exhaust channel 2 as soon as possible.

[0105] The top end surface of the lap joint 4 extends from the bottom end of the side wall of the motor flow guide to the annular protrusion 42, so that the fluid flows more smoothly from the first air inlet 101 into the air inlet channel 1.

[0106] In this embodiment, the first air inlet 101 extends to the bottom end surface of the lap joint 4, and is connected with the first air outlet 102. The first air inlet 101 is located outside the first air outlet 102 and is arched toward the first air outlet 102, so that the external fluid is quickly guided into the air inlet channel 1.

[0107] It should be noted that in this embodiment, the projection of the cover plate 3 in the direction of the lap joint 4 cannot cover the part of the first air inlet 101 extending to the lap joint 4.

[0108] Embodiment Two

[0109] The embodiment provides a dust collection equipment, which comprises the motor flow guide provided in the embodiment one. Figures 7-12 As shown in the figure, the dust collection equipment comprises the motor flow guide provided in the embodiment one.

[0110] Compared with the prior art, the dust collection equipment provided in the embodiment has the beneficial effects of the motor flow guide provided in the embodiment one, which will not be repeated here.

[0111] The dust collection equipment further comprises a motor assembly 7 and a filter assembly 8.

[0112] The motor assembly 7 is connected with the motor flow guide. Specifically, the motor assembly 7 comprises a first cavity 71, a second cavity 72 and a motor component 73, the motor component 73 is installed in the first cavity 71; the first cavity 71 is provided with an air inlet 701, the air inlet 701 is communicated with the first air outlet 102, so as to guide the fluid into the motor assembly; the second cavity 72 is provided with an air outlet 702, the air outlet 702 is communicated with the second air inlet 201, so as to guide the fluid out of the motor assembly; the motor component 73 comprises an air inlet end 731 and an air outlet end 732, the air inlet end 731 is communicated with the air inlet 701.

[0113] The first cavity 71 and the second cavity 72 are provided with a communication passage or a communication port capable of communicating the first cavity 71 and the second cavity 72, at least a part of the communication passage or the communication port is opposite to the air outlet end 732, and the communication passage or the communication port is away from the air outlet 702.

[0114] The second cavity 72 is located outside the first cavity 71, and the heat generated by the motor component 773 can be diffused into the second cavity 72, which can carry the heat in the second cavity 72 out of the motor assembly when the fluid passes through the second cavity 72, thereby achieving good heat dissipation effect. In addition, the buffering through the second cavity 72 outside can also eliminate the vibration generated by the motor component 73 during operation, thereby achieving the effect of reducing vibration and improving the use of the motor assembly.

[0115] In some embodiments, a plurality of second cavities 72 are included, and the second cavities 72 are uniformly arranged outside the first cavity 71 to achieve better heat dissipation and vibration reduction effects.

[0116] In some embodiments, the second cavity 72 is an annular cavity arranged outside the first cavity 71, and the shape of the inner side wall of the second cavity 72 is matched with the first cavity 71 to achieve a good wrapping effect and further improve the heat dissipation and vibration reduction effects of the second cavity 72. The annular cavity can be a circular ring or other shapes, preferably a circular ring.

[0117] In the embodiment, the motor assembly includes a housing 74, a ring wall 75, and a cover 76, the cover 76 is arranged on the housing 74, one end of the ring wall 75 abuts the bottom of the housing 74, the other end of the ring wall 75 abuts the cover 76, and a gap is reserved between the ring wall 75 and the side wall of the housing 74.

[0118] The housing 74, the ring wall 75, and the cover 76 jointly define the first cavity 71 and the second cavity 72, and the second cavity 72 is arranged outside the first cavity 71, that is, the inner side wall of the ring wall 75, the bottom of the housing 74, and the cover 76 limit the first cavity 71, and the side wall of the housing 74, the bottom of the housing 74, the outer side wall of the ring wall 75, and the cover 76 limit the second cavity 72.

[0119] The cover 76 is connected with the lap joint part 4 of the motor flow guide, and the end surface of the cover 76 away from the first cavity 71 is matched with the bottom end surface of the lap joint part 4, so that the motor assembly 7 is tightly connected with the motor flow guide, so that the fluid in the air inlet passage 1 is guided to the motor component 73 through the first air outlet 102 from the air inlet 701, and the fluid discharged by the motor component 73 is guided to the air outlet 702 through the second air inlet 201.

[0120] Specifically, the cover 76 is provided with the air inlet 701 and the air outlet 702, and the cover 76 is provided with a plurality of air outlets 702 which are arranged outside the air inlet 701. Further, the air inlet 701 is located at the center of the cover 76.

[0121] Further, the cover 76 comprises an air inlet area 761 and an air outlet area 762, the air inlet area corresponds to the first cavity 71, and the air outlet area corresponds to the second cavity 72. The air outlet area is arranged outside the air inlet area. The air inlet 701 is located in the air inlet area, and the air outlet 702 is located in the air outlet area. The air inlet 701 is located at the center of the air inlet area, and the air outlets 702 are uniformly distributed in the air outlet area and arranged outside the air inlet area.

[0122] The air inlet area 761 is gradually convex outward from the edge to the center, that is, the air inlet area forms a downward slope from the center to the edge. Specifically, the shape of the air inlet area is trumpet-shaped, and the trumpet opening faces the first cavity 71. In this way, the air inlet 701 is higher (or more outward) than the air outlet 702, so that the fluid flowing to the motor assembly is more quickly guided from the air inlet 701 to the motor part 73.

[0123] The outer end surface of the cover 76 is provided with a fitting strip 763 which is matched with the fitting groove 41 of the lap joint part 4. Specifically, the fitting strip 763 is arranged outside each air outlet 702, so that the motor assembly 7 is buckled with the motor flow guide, and the fluid enters the exhaust passage 2 through the air outlet 702 and the second air inlet 201.

[0124] In order to further improve the connection performance of the motor assembly and the motor flow guide, the fitting strip 763 extends from the air outlet area 762 to the air inlet area 761, and all the fitting strips 763 are located outside the air inlet 701.

[0125] The motor part 73 is installed in the ring wall 75, the air inlet end 731 abuts against the cover 76, and the air inlet end 731 is in sealed communication with the air inlet 701, so that the fluid entering from the air inlet 701 enters the motor part 73 through the air inlet end 731; the air outlet end 732 is close to the bottom of the shell 74.

[0126] The ring wall 75 is provided with a communication port 751 for communicating the first cavity 71 and the second cavity 72, and at least a part of the communication port 751 is opposite to the air outlet end 732, so that the fluid discharged from the air outlet end 732 quickly enters the second cavity 72. Further, the ring wall 75 is provided with a plurality of communication ports 751 which are uniformly arranged in the lower section (far away from the cover 76) of the ring wall 75.

[0127] In order to ensure the stability of the motor component 73 in the first cavity 71, a plurality of support strips 752 are arranged on the cavity wall of the first cavity 71, and the support strips 752 are in contact with the side wall of the motor component 73 to form a supporting force between the side wall of the motor component 73 and the cavity wall of the first cavity 71, which can not only improve the connection performance of the motor component 73 and the first cavity 71, but also avoid the shaking of the motor component 73 in the first cavity 71, thereby achieving the vibration reduction effect. In the embodiment, the support strips 752 are located on the inner side wall surface of the ring wall 75 and above the communication port 751.

[0128] The filter assembly 8 comprises a filter part 81 and an exhaust part 82, the filter part 81 is arranged outside the side wall of the motor flow guide, and the exhaust part 82 is in sealing connection with the second end of the motor flow guide, so that the fluid in the exhaust passage 2 is guided to the exhaust part 82 through the second air outlet 202, and then guided to the rear end of the dust collection equipment through the exhaust part 82.

[0129] One end of the filter part 81 is provided with an annular groove matched with the annular protrusion 42 of the lap joint part 4, and the filter part 81 is connected with the lap joint part 4 through the clamping of the annular groove and the annular protrusion 42, and the other end of the filter part 81 is connected with the exhaust part 82.

[0130] The convex rib part 6 is located between the filter part 81 and the side wall of the motor flow guide, so as to ensure that there is a certain gap between the filter part 81 and the side wall of the motor flow guide, and ensure that the first air inlet 101 can smoothly intake air.

[0131] After being filtered by the filter part 81, the fluid is guided into the air inlet passage 1 through the first air inlet 101 on the side wall of the motor flow guide, guided into the motor assembly 7 through the first air outlet 102 and the air inlet 701, and then guided into the exhaust passage 2 through the air outlet 702 and the second air inlet 201, guided to the rear end of the dust collection equipment through the second air outlet 202 and the exhaust part 82, and finally discharged out of the dust collection equipment through the exhaust hole of the rear end.

[0132] Compared with the prior art, the fluid enters the air inlet end 731 through the air inlet 701, and then is guided to the exhaust end 732 through the communication passage (or the communication port), the second cavity 72, the air outlet 702, the exhaust passage 2, the exhaust part 82, the rear end of the dust collection equipment, and finally discharged out of the dust collection equipment through the exhaust hole, which effectively lengthens the fluid circulation path between the exhaust end 732 and the exhaust, thereby achieving a good noise reduction effect.

[0133] The above description is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which should be covered within the protection scope of the present application.

Claims

1. An electrical machine flow guide, characterized in that, The motor flow guide piece comprises: an air inlet channel (1) in communication with the air inlet of the motor assembly for guiding fluid to the motor assembly; an air outlet channel (2) in communication with the air outlet of the motor assembly for guiding fluid discharged by the motor assembly away; wherein the air inlet channel (1) is provided with a first air inlet (101) and a first air outlet (102), and the first air outlet (102) is in communication with the air inlet of the motor assembly; the air outlet channel (2) is provided with a second air inlet (201) and a second air outlet (202), and the second air inlet (201) is in communication with the air outlet of the motor assembly; the fluid in the air inlet channel (1) and the air outlet channel (2) does not interfere with each other; the number of the air outlet channels (2) is greater than or equal to 1, when N=1, the air outlet channel (2) is located on the outer side of the air inlet channel (1), and the first air inlet (101) for the air inlet channel (1) is formed between the two sides of the side wall of the air outlet channel (2); when N≥2, the air outlet channels (2) are evenly arranged on the outer side of the air inlet channel (1), and the first air inlet (101) is formed between the side walls of the two adjacent air outlet channels (2); the first air outlet (102) is arranged at one end of the motor flow guide piece connected with the motor assembly; the second air inlet (201) and the second air outlet (202) are arranged at the two ends of the motor flow guide piece respectively, and the second air inlet (201) and the first air outlet (102) are located at the same end of the motor flow guide piece, and the second air outlet (202) is arranged at the end of the motor flow guide piece away from the motor assembly; the outer side wall of the air outlet channel (2) constitutes part of the side wall of the motor flow guide piece, and the inner side wall of the air outlet channel (2) forms the side wall of the air inlet channel (1); the side wall of the motor flow guide piece is provided with a convex rib part (6); the motor flow guide piece comprises a first end and a second end, the first end is connected with the motor assembly, and the second end is away from the motor assembly; the first air inlet (101) is arranged on the side wall of the motor flow guide piece; the first air outlet (102) is arranged at the first end; the second air inlet (201) is arranged at the first end; and the second air outlet (202) is arranged at the second end.

2. The motor flow guide piece according to claim 1, wherein when N≥2, the air outlet channels (2) are arranged on the outer side of the air inlet channel (1), and the first air inlet (101) is formed between the side walls of at least two adjacent air outlet channels (2).

3. The motor flow guide of any one of claims 1-2, wherein, the second end is provided with a cover plate (3), and the cover plate (3) is provided with the second air outlet (202); the first end is provided with a lap joint part (4), and the lap joint part (4) is provided with the first air outlet (102) and the second air inlet (201).

4. The motor flow guide of claim 3, wherein, the cover plate (3) is sealingly arranged at the end of the air inlet channel (1) and the first air inlet (101) away from the first air outlet (102).

5. The motor flow guide of claim 4, wherein, The cover plate (3) comprises a center part (31) and an extension part (32), the extension part (32) is located outside the center part (31), the center part (31) corresponds to the air inlet channel (1), and the extension part (32) corresponds to the first air inlet (101).

6. The motor flow guide of claim 4, wherein, An annular wall part (5) is arranged on the side of the cover plate (3) away from the air inlet channel (1), the annular wall part (5) surrounds the outside of the cover plate (3) and the second air outlet (202), and the annular wall part (5) forms part of the side wall of the motor flow guide.

7. The motor flow guide of claim 3, wherein A mounting groove (41) is arranged on the bottom end surface of the lap joint part (4), and the mounting groove (41) surrounds the outside of each second air inlet (201).

8. The motor flow guide of claim 7, wherein, The bottom end surface of the lap joint part (4) is arched from the outer edge to the center, and the first air outlet (102) is located at the center.

9. The motor flow guide of claim 3, wherein, An annular protrusion (42) is arranged on the top end surface of the lap joint part (4).

10. The motor flow guide of claim 9, wherein, The first air inlet (101) extends from the side wall of the motor flow guide to the annular protrusion (42).

11. A dust extraction device comprising: The motor flow guide comprises the motor flow guide.

12. The dust extraction apparatus of claim 11, wherein, Further comprising a motor assembly (7) and a filter assembly (8). The motor assembly (7) is connected with the motor flow guide, and the motor assembly (7) is provided with an air inlet (701) and an air outlet (702), the air inlet (701) is communicated with the first air outlet (102), and the air outlet (702) is communicated with the second air inlet (201). The filter assembly (8) comprises a filter part (81) and an air exhaust part (82), the filter part (81) surrounds the outside of the side wall of the motor flow guide, and the air exhaust part (82) is sealingly connected with the second end of the motor flow guide; one end of the filter part (81) is provided with an annular groove matched with the annular protrusion (42) of the lap joint part (4) of the motor flow guide, and the other end of the filter part (81) is connected with the air exhaust part (82).

13. The dust extraction apparatus of claim 12, wherein, The motor assembly (7) comprises a first cavity (71), a second cavity (72) and a motor part (73), and the motor part (73) is installed in the first cavity (71). The first cavity (71) is provided with the air inlet (701) communicated therewith, so as to guide fluid into the motor assembly. The second cavity (72) is provided with the air outlet (702) communicated therewith, so as to guide fluid out of the motor assembly. The motor part (73) comprises an air inlet end (731) and an air outlet end (732), and the air inlet end (731) is communicated with the air inlet (701). A communication channel or a communication port capable of communicating the first cavity (71) and the second cavity (72) is arranged between the first cavity (71) and the second cavity (72), at least a part of the communication channel or the communication port is opposite to the air outlet end (732), and the communication channel or the communication port is away from the air outlet (702).

14. The dust extraction apparatus of claim 13, wherein, The second cavity (72) is located outside the first cavity (71).

15. The dust extraction apparatus of claim 14, wherein, The motor assembly comprises a shell (74), a ring wall (75) and a cover (76), the cover (76) is covered on the shell (74) and the ring wall (75), and the shell (74), the ring wall (75) and the cover (76) jointly define the first cavity (71) and the second cavity (72).

16. The dust extraction apparatus of claim 15, wherein, The cover (76) is connected with the overlapping part (4) of the motor flow guide, and an end face of the cover (76) away from the first cavity (71) is matched with a bottom end face of the overlapping part (4); The cover (76) is provided with the air inlet (701) and the air outlet (702); An outer end face of the cover (76) is provided with a fitting strip (763) matched with a fitting groove (41) of the overlapping part (4).

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