CN218894796U

CN218894796U - Fan and surface cleaning equipment

Info

Publication number: CN218894796U
Application number: CN202223468570.2U
Authority: CN
Inventors: 胡肖; 夏昌太
Original assignee: Zhejiang Mile Technology Co ltd
Current assignee: Zhejiang Mile Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-21
Anticipated expiration: 2032-12-23

Abstract

The application discloses fan and surface cleaning equipment relates to the machine technical field of sweeping. The fan comprises a fan main body and a heat radiating piece; the fan main body comprises a shell assembly and a movement positioned in the shell assembly; the heat dissipation piece includes continuous heat dissipation piece body and heat conduction portion, the heat dissipation piece body encircle set up in the week side of fan main part, the heat conduction portion is located the heat dissipation piece body is close to one side of fan main part, the heat conduction portion is kept away from the one end of heat dissipation piece body wears to locate the casing subassembly and extends to in the casing subassembly, the heat conduction portion is used for with the heat transfer of core extremely the heat dissipation piece body. The fan that this application provided can realize the quick heat dissipation of inside core.

Description

Fan and surface cleaning equipment

Technical Field

The application relates to the technical field of sweeper, in particular to a fan and surface cleaning equipment.

Background

Along with the improvement of living standard, intelligent devices such as sweeper and the like are increasingly favored by consumers. When the sweeper works for a period of time, garbage in the dust box of the sweeper can be recovered through the dust collection barrel matched with the sweeper.

However, the fan in the existing dust collection barrel mainly radiates heat outwards through the shell of the fan in the working process, so that the heat in the fan cannot be quickly transferred outwards, the temperature rise in the fan is higher, and the service life of the fan is influenced.

Disclosure of Invention

The application provides a fan and surface cleaning equipment to realize the quick heat dissipation of core.

The application provides a fan, include:

the fan main body comprises a shell assembly and a movement positioned in the shell assembly;

the heat dissipation piece comprises a heat dissipation piece body and a heat conduction part, wherein the heat dissipation piece body and the heat conduction part are connected, the heat dissipation piece body is arranged on the periphery of the fan body in a surrounding mode, the heat conduction part is located on one side, close to the fan body, of the heat dissipation piece body, one end, far away from the heat dissipation piece body, of the heat dissipation piece body penetrates through the shell assembly and extends into the shell assembly, and the heat conduction part is used for transmitting heat of the movement to the heat dissipation piece body.

Based on the fan that this application provided, the produced heat of core in the fan main part accessible heat conduction portion transmits to the radiating member body to further outwards lose heat through the radiating member body. That is, the heat dissipation piece is integrated in the fan, the heat dissipation of core is realized to the accessible heat dissipation piece, promotes the radiating efficiency of core, and then reduces the temperature rise in the fan main part, avoids influencing the life of fan because of the high temperature.

In some possible embodiments, the heat dissipation element further includes an extension portion, where the extension portion is disposed at an end of the heat conduction portion away from the heat dissipation element body and is in contact with the movement, and a surface area of the extension portion in contact with the movement is greater than an end surface area of the heat conduction portion near an end of the movement.

In some possible embodiments, a side of the heat dissipation element body away from the heat conducting part is convexly provided with a plurality of annular ribs.

In some possible embodiments, a plurality of ribs are convexly arranged on one side of the heat dissipation part body away from the heat conduction part, and the ribs are sequentially connected end to end and form a spiral structure, and the spiral structure comprises a spiral diversion trench.

In some possible embodiments, the rib is a triangular rib, and an end of the rib remote from the heat conducting portion is pointed.

In some possible embodiments, the fan further includes a first shock pad, the first shock pad including a shock pad body and an outer edge portion, the shock pad body being covered at one end of the movement and being arranged between the movement and the housing assembly, the outer edge portion being arranged between the housing assembly and the heat conducting portion.

In some possible embodiments, the fan further comprises a second shock pad disposed at an end of the movement remote from the first shock pad and disposed between the movement and the housing assembly.

In some possible embodiments, the fan further includes a temperature detecting member mounted at an end of the heat conducting portion near the heat dissipating member body, and the temperature detecting member is electrically connected to the movement.

In some possible embodiments, the temperature detecting member is a negative temperature coefficient thermistor, and the temperature detecting member outer sleeve is further provided with an insulating sleeve.

In addition, the application also provides surface cleaning equipment, which comprises the fan provided in each embodiment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates an exploded structural schematic of a blower in some embodiments;

FIG. 2 illustrates a schematic cross-sectional structure of a blower in some embodiments;

FIG. 3 is a schematic view showing a partially enlarged structure of the portion A in FIG. 2;

fig. 4 shows a schematic structural view of a temperature detecting member in some embodiments.

Description of main reference numerals:

1000-fans;

100-a fan main body; 110-a housing assembly; 111-a first housing; 112-a second housing; 113-a mounting cavity; 120-movement; 200-heat dissipation elements; 210-a heat sink body; 211-helix structure; 211 a-ribs; 212-spiral diversion trenches; 220-heat conducting part; 230-extensions; 310-a first shock pad; 311-a shock pad body; 312-an outer edge portion; 320-a second shock pad; 410-a temperature detecting member; 420-insulating sleeve.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 and 2, a blower 1000 is provided in an embodiment, which may be used in a dust collection device of a surface cleaning apparatus. The surface cleaning apparatus may be one of a variety of apparatus including, but not limited to, a sweeper, scrubber, tabletop cleaner, window cleaner, and the like.

As shown in fig. 1 and 2, the blower 1000 may include a blower body 100 and a heat sink 200.

Wherein the blower body 100 may include a housing assembly 110 and a movement 120. The interior of the housing assembly 110 is hollow and may define a mounting cavity 113. Movement 120 may be fixedly mounted within mounting cavity 113 of housing assembly 110. It will be appreciated that during operation of the blower 1000, the blower body 100 may be used as a power source to drive the flow of gas.

Referring to fig. 3 again, the heat sink 200 may include a heat sink body 210 and a heat conducting portion 220. The heat sink body 210 may have a substantially tubular structure, and the heat sink body 210 may be disposed around the fan body 100, i.e. the heat sink body 210 is disposed around the outside of the housing assembly 110.

In some embodiments, the thermally conductive portion 220 may have an annular plate-like structure. The heat conducting part 220 may be disposed at a side of the heat sink body 210 near the fan body 100. Meanwhile, an end of the heat conducting portion 220 away from the heat dissipating member body 210 may be disposed through the housing assembly 110 and extend into the mounting cavity 113 of the housing assembly 110. In the embodiment, the heat conducting portion 220 can be used to transfer heat generated in the working process of the movement 120 to the heat dissipating member body 210, and dissipate the heat to the outside through the heat dissipating member body 210, so as to dissipate the heat of the movement 120.

In other embodiments, the heat conducting portion 220 may also have a fan-shaped plate structure. Accordingly, a plurality of heat conductive parts 220 may be connected to a side of the heat sink body 210 adjacent to the fan body 100, and the plurality of heat conductive parts 220 may be sequentially spaced apart along the circumferential direction of the heat sink body 210. In addition, the ends of the plurality of heat conducting portions 220, which are far away from the heat dissipating member body 210, can be disposed through the housing assembly 110 and extend into the mounting cavity 113 so as to exchange heat with the movement 120.

In the embodiment, the heat dissipation member 200 can dissipate heat of the movement 120, so that the temperature of the movement 120 can be reduced during the working process, and the temperature rise is avoided. Accordingly, the temperature in the housing assembly 110 and the mounting cavity 113 also decreases as the temperature of the movement 120 decreases. Therefore, the possibility of damage to the movement 120 and the housing assembly 110 due to overhigh temperature can be reduced, and the service life of the blower 1000 can be prolonged.

As shown in fig. 1 and 2, further, the housing assembly 110 may include a first housing 111 and a second housing 112. The first housing 111 and the second housing 112 cooperate to define a mounting cavity 113. It is understood that the ends of the first housing 111 and the second housing 112, which are close to each other, are each of an open structure so as to communicate the inside of the first housing 111 with the inside of the second housing 112.

In some embodiments, the ends of the first casing 111 and the second casing 112 that are close to each other may be detachably connected by screw connection, so that maintenance and repair operations of the movement 120 located in the installation cavity 113 may be facilitated when the fan 1000 fails or the like.

In other embodiments, the first housing 111 and the second housing 112 may be detachably connected by a snap connection or the like.

Referring to fig. 3 again, in an embodiment, the heat conducting portion 220 may extend into the mounting cavity 113 through the connection position of the first housing 111 and the second housing 112. When the first casing 111 and the second casing 112 are connected by the screws, the screws can penetrate through the heat conducting portion 220 at the same time, and the heat conducting portion 220 is locked and fixed, so that the heat sink 200 and the fan main body 100 can be fixedly connected.

In some embodiments, the heat sink 200 may be made of copper, aluminum, copper alloy, or aluminum alloy, and may have high heat transfer efficiency so as to quickly transfer heat in the movement 120 to the outside.

As shown in fig. 2 and 3, the heat sink 200 further includes an extension 230 integral with the heat conductive portion 220. Wherein the extension 230 may also have a substantially tubular structure. The extension portion 230 may be disposed at an end of the heat conducting portion 220 away from the heat dissipating member body 210, i.e. the extension portion 230 may be located in the mounting cavity 113. In an embodiment, the extension portion 230 may be disposed around the circumference of the movement 120, and the extension portion 230 may contact and fit with the movement 120, so that the extension portion 230 directly performs heat exchange with the movement 120, thereby improving heat conduction efficiency.

In an embodiment, the surface area of the extension 230 contacting the movement 120 may be larger than the end surface area of the heat conducting portion 220 near one end of the movement 120. Therefore, by providing the extension portion 230, the contact area between the heat dissipation element 200 and the movement 120 can be increased, the heat transfer efficiency between the movement 120 and the heat dissipation element 200 can be increased, and the heat dissipation efficiency of the movement 120 can be further improved.

As shown in fig. 2 and fig. 3, a plurality of ribs 211a are further protruding from a side of the heat dissipation member body 210 away from the heat conducting portion 220, which can be used to increase the heat dissipation area of the heat dissipation member body 210 away from the heat conducting portion 220, so as to increase the heat dissipation efficiency of the heat dissipation member body 210, and further increase the heat dissipation efficiency of the movement 120.

In some embodiments, a plurality of annular ribs 211a may be disposed on a side of the heat dissipation member body 210 away from the heat conducting portion 220, and the plurality of annular ribs 211a may be connected end to end in sequence to form a spiral structure 211. In an embodiment, the spiral structure 211 may extend from one end of the heat sink body 210 to the other end, i.e. the spiral structure 211 extends over a side surface of the heat sink body 210 away from the heat conducting portion 220.

In other embodiments, the plurality of annular ribs 211a may be provided separately, and may be sequentially arranged along the axial direction of the fan 1000.

In other embodiments, it is not excluded that a rib 211a is provided on the side of the heat sink body 210 away from the heat conducting portion 220.

In an embodiment, the spiral structure 211 may include spiral diversion trenches 212, which may be used for diversion of condensate. It will be appreciated that when the blower 1000 is deactivated, condensed water may form on the surface of the blower 1000, as the blower 1000 may cool down relatively quickly with respect to its surrounding air.

In an embodiment, the condensed water formed on the surface of the heat sink 200 may be guided by the spiral guide groove 212 and may flow toward one end of the fan 1000 under the action of gravity. Thus, the condensed water may fall to the bottom of a housing (not shown) at one end of the blower 1000 by gravity and may be discharged through a drain opening at the bottom of the housing. Therefore, the possibility that condensed water permeates into the fan 1000 can be reduced, damage such as corrosion of the condensed water to the fan 1000 can be reduced, short circuit can be avoided, and smooth operation of the fan 1000 can be ensured.

In some embodiments, the rib 211a may be a triangular rib, and an end of the rib 211a remote from the heat conducting portion 220 is pointed. In one aspect, more ribs 211a can be disposed on the side of the heat dissipating member body 210 away from the heat conducting portion 220, so as to increase the heat dissipating area and improve the heat dissipating efficiency of the fan 1000. On the other hand, the condensed water can be conveniently collected to the spiral diversion trench 212, so that the condensed water flows to the bottom of the shell along the spiral diversion trench 212, and the residue of the condensed water on the surface of the fan 1000 is reduced.

Of course, in other embodiments, it is not precluded that the rib 211a be configured as a square rib or a hemispherical rib.

As shown in fig. 1 and 2, further, in some embodiments, the blower 1000 further includes a first shock pad 310 and a second shock pad 320.

Referring again to fig. 3, the first shock pad 310 may include an integrated shock pad body 311 and an outer edge portion 312. The cushion body 311 may have a substantially shell-like structure. The shock pad body 311 may be covered at one end of the movement 120 near the first housing 111, and the shock pad body 311 may be arranged between the movement 120 and the first housing 111 to realize shock absorption between the movement 120 and the first housing 111.

The outer edge portion 312 may be disposed at an end of the shock pad body 311 near the second housing 112, and the outer edge portion 312 may be disposed around the shock pad body 311. In an embodiment, the outer edge portion 312 may extend to a contact position between the heat conducting portion 220 and the first housing 111, and is disposed between the heat conducting portion 220 and the first housing 111. Therefore, the first shock pad 310 can also absorb shock at the connection position of the housing assembly 110 and the heat sink 200, thereby avoiding the problems of loosening the connection between the housing assembly 110 and the heat sink 200, and improving the stability and reliability of the connection position of the housing assembly 110 and the heat sink 200.

In an embodiment, the second shock pad 320 may be disposed at an end of the movement 120 near the second housing 112 and is disposed between the movement 120 and the second housing 112 to provide a shock absorbing function to reduce shock transmission between the movement 120 and the second housing 112. In addition, the movement 120 may also form a structural limit in the housing assembly 110, so that the movement 120 is fixed in the housing assembly 110, and the movement 120 is prevented from shaking randomly in the housing assembly 110.

In some embodiments, both the first shock pad 310 and the second shock pad 320 may be made of a flexible material such as silicone, rubber, or foam.

As shown in fig. 1 to 3, the fan 1000 further includes a temperature detecting member 410 for detecting a temperature during operation of the fan 1000. In some embodiments, the temperature sensing element 410 may be a negative temperature coefficient (Negative Temperature Coefficient, NTC) thermistor.

In other embodiments, the temperature detecting member 410 may alternatively be a temperature detecting structure such as a thermocouple or a thermopile.

Referring to fig. 4, the temperature detecting element 410 may be fixedly installed at one end of the heat conducting portion 220 near the heat dissipating element body 210, and an insulating sleeve 420 may be sleeved outside the temperature detecting element 410, so as to insulate between the temperature detecting element 410 and the heat dissipating element 200. In some embodiments, insulating sleeve 420 may be an insulating tape.

In an embodiment, the temperature detecting member 410 and the movement 120 may be electrically connected to a main control board (not shown) in the dust collecting device, that is, the temperature detecting member 410 and the movement 120 may be electrically connected through the main control board.

In the working process, the temperature detecting element 410 can monitor the temperature of the fan 1000 in real time, and send the detected data to the main control board. When the temperature data detected by the temperature detecting element 410 is greater than or equal to the preset temperature, the main control board can control the movement 120 to reduce the working power or stop working. When the temperature data detected by the temperature detecting element 410 is less than the preset temperature, the main control board can control the movement 120 to resume the normal power operation or restart the operation. Therefore, the influence on the service life of the fan 1000 and surrounding structural members caused by the overhigh temperature of the working environment of the fan 1000 can be avoided. In an embodiment, the preset temperature may be set as desired, for example, to 80 ℃, 85 ℃, 90 ℃, or the like.

Also provided in embodiments is a surface cleaning apparatus that may include the blower 1000 provided in embodiments. The blower 1000 may be mounted in a dust collection device of the surface cleaning apparatus to provide power for the dust collection action.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. A blower, comprising:

2. The fan of claim 1, wherein the heat sink further comprises an extension portion disposed at an end of the heat conducting portion away from the heat sink body and in contact with the movement, and a surface area of the extension portion in contact with the movement is greater than an end surface area of the heat conducting portion near an end of the movement.

3. The fan according to claim 1 or 2, wherein a side of the heat sink body away from the heat conducting portion is provided with a plurality of annular ribs in a protruding manner.

4. A fan according to claim 3, wherein a plurality of ribs are provided on a side of the heat dissipation member body away from the heat conduction portion in a protruding manner, the plurality of ribs are connected end to end in sequence and form a spiral structure, and the spiral structure comprises a spiral diversion trench.

5. The fan of claim 3 wherein the rib is a triangular rib and an end of the rib remote from the thermally conductive portion is pointed.

6. The blower of claim 1, further comprising a first shock pad comprising a shock pad body and an outer edge portion, the shock pad body being covered at one end of the movement and being cushioned between the movement and the housing assembly, the outer edge portion being cushioned between the housing assembly and the thermally conductive portion.

7. The blower of claim 6, further comprising a second shock pad disposed at an end of the movement remote from the first shock pad and disposed between the movement and the housing assembly.

8. The fan of claim 1, further comprising a temperature sensing member mounted to an end of the heat conducting portion proximate to the heat dissipating member body, the temperature sensing member being electrically connected to the movement.

9. The fan of claim 8, wherein the temperature sensing element is a negative temperature coefficient thermistor, and the temperature sensing element is further provided with an insulating sleeve.

10. A surface cleaning apparatus comprising a blower as claimed in any one of claims 1 to 9.