CN220134224U - Air pump - Google Patents

Abstract

The embodiment of the utility model discloses an air pump, which comprises: the shell is provided with an accommodating space, and an air inlet and an air outlet which are respectively communicated with the accommodating space; the fan blade assembly is rotatably arranged in the accommodating space and is positioned between the air inlet and the air outlet in the axial direction of the fan blade assembly; the inlet of the first air guide channel is close to the rotating shaft side of the fan blade assembly, and the outlet of the first air guide channel is positioned at the peripheral side of the fan blade assembly, so that external air is led out through the air inlet, the first air guide channel, the peripheral side of the fan blade assembly and the air outlet. According to the air pump provided by the embodiment of the utility model, the distance between the air outlet and the peripheral side of the fan blade assembly is large, the air speed at the air outlet is relatively small, howling cannot be generated, the noise at the air outlet is small, and the use experience is good.

Description

Air pump

Technical Field

The utility model relates to the technical field of pump equipment, in particular to an air pump.

Background

The air pump is an air charging or ventilating device which is frequently used by people; in the related art, a wind pump generally includes a housing and a fan disposed in the housing; however, in the working process of the air pump, the noise at the air outlet of the shell is large, and the use experience is poor.

Disclosure of Invention

Accordingly, it is desirable to provide a wind pump according to the embodiments of the present utility model.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the embodiment of the utility model provides an air pump, which comprises:

the shell is provided with an accommodating space, and an air inlet and an air outlet which are respectively communicated with the accommodating space;

the fan blade assembly is rotatably arranged in the accommodating space and is positioned between the air inlet and the air outlet in the axial direction of the fan blade assembly;

the inlet of the first air guide channel is close to the rotating shaft side of the fan blade assembly, and the outlet of the first air guide channel is positioned at the peripheral side of the fan blade assembly, so that external air is led out through the air inlet, the first air guide channel, the peripheral side of the fan blade assembly and the air outlet.

In some optional implementations, the receiving space includes: the first cavity is communicated with the air inlet, and the second cavity is communicated with the air outlet;

the fan blade assembly is arranged in the first cavity; the first cavity and the second cavity are provided with a first opening communicated with each other at the inner wall of the shell, and the outlet of the first air guide channel corresponds to the position of the first opening, so that external air is led out through the air inlet, the first air guide channel, the first opening, the second cavity and the air outlet.

In some alternative implementations, the wind pump further includes:

the second air guide channel is arranged at the inner wall of the shell, the inlet of the second air guide channel corresponds to the position of the first opening, and the outlet of the second air guide channel is positioned in the second cavity.

In some alternative implementations, the first air guide channel curves in a first direction in the fan blade assembly circumferential direction, and the second air guide channel curves in a second direction in the fan blade assembly circumferential direction;

the first direction is opposite to the second direction.

In some alternative implementations, the wind pump further includes:

the fixing piece of the driving assembly is arranged in the second cavity, and the part of the rotating piece of the driving assembly is positioned in the first cavity and connected with the fan blade assembly.

In some alternative implementations, the wind pump further includes:

the partition plate is arranged in the accommodating space and divides the accommodating space into the first cavity and the second cavity;

the fixing piece is arranged on the partition board, and part of the rotating piece penetrates through the through hole of the partition board to be connected with the fan blade assembly;

one end of the fixing piece, which is away from the partition board, is formed with a gap with the wall body of the second cavity;

the air outlet is arranged on the peripheral side wall of the second cavity, so that external air is led out from the air outlet through the peripheral side of the fixing piece and one end of the fixing piece, which is away from the partition plate.

In some alternative implementations, the wind pump further includes:

the circuit board is located the mounting deviates from the one end of baffle, and forms the wall body of second cavity, so that external gas flows through the week side of mounting, the mounting deviates from the one end of baffle with the circuit board is followed the air outlet is derived.

In some alternative implementations, the wind pump further includes:

the battery is arranged on the partition board, the battery is electrically connected with the driving assembly, and a gap is formed between one end of the battery, which is away from the partition board, and the wall body of the second cavity;

the air outlet is arranged on the peripheral side wall of the second cavity, so that external air is led out from the air outlet through the peripheral side of the battery and one end of the battery, which is far away from the partition plate.

In some alternative implementations, the fan blade assembly includes:

the connecting part is connected with the rotating piece of the driving assembly and is arranged adjacent to the partition plate;

the root parts of the at least two blades are connected with the connecting part, and the end parts of the blades are positioned on the periphery side of the connecting part;

the connecting plate is connected with one side, away from the partition plate, of at least two blades, and the first air guide channel is defined by the connecting plate, the partition plate and the at least two blades.

In some alternative implementations, the perimeter side of the partition has at least two of the first openings;

the air pump further includes:

the first end of aviation baffle set up in first opening part, the unsettled being located of second end of aviation baffle in the second cavity, the aviation baffle with the inner wall of casing defines the second wind-guiding passageway jointly, so that external air warp the air intake first wind-guiding passageway first opening, second wind-guiding passageway second cavity with the air outlet is derived.

In some alternative implementations of the present utility model,

the side of the air deflector, which is far away from the inner wall of the shell, is provided with a second opening communicated with the second air guide channel, so that part of external air flows to one end of the driving assembly, which is close to the partition plate, through the second opening.

The air pump in the embodiment of the utility model comprises: the shell is provided with an accommodating space, and an air inlet and an air outlet which are respectively communicated with the accommodating space; the fan blade assembly is rotatably arranged in the accommodating space and is positioned between the air inlet and the air outlet in the axial direction of the fan blade assembly; the inlet of the first air guide channel is close to the rotating shaft side of the fan blade assembly, the outlet of the first air guide channel is located at the periphery side of the fan blade assembly, so that external air passes through the air inlet, the first air guide channel, the periphery side of the fan blade assembly and the air outlet are led out, the distance between the air outlet and the periphery side of the fan blade assembly is large, the air speed at the air outlet is relatively small, howling cannot be generated, noise at the air outlet is small, and the use experience is good.

Drawings

FIG. 1 is a cross-sectional view of an alternative construction of a stroke pump according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an alternative configuration of a stroke pump according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an alternative configuration of a stroke pump according to an embodiment of the present utility model;

FIG. 4 is a partial cross-sectional view of an alternative embodiment of a stroke pump according to the present utility model;

FIG. 5 is a cross-sectional view of an alternative configuration of a stroke pump according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an alternative partial construction of a stroke pump according to an embodiment of the present utility model;

fig. 7 is an exploded view of an alternative construction of a stroke pump according to an embodiment of the present utility model.

Reference numerals: 110. a housing; 111. an accommodation space; 1111. a first cavity; 1112. a second cavity; 112. an air inlet; 113. an air outlet; 114. a first opening; 115. a shell body; 116. a top cover; 117. a bottom cover; 118. a third opening; 119. a fourth opening; 120. a fan blade assembly; 121. a connection part; 122. a blade; 123. a connecting plate; 130. a first air guide channel; 140. the second air guide channel; 150. a drive assembly; 151. a fixing member; 152. a rotating member; 160. a partition plate; 170. a circuit board; 171. a charging interface; 180. a battery; 190. an air deflector; 191. a second opening; 210. a key; 220. a control board; 230. a silica gel plug.

Detailed Description

The technical scheme of the utility model is further elaborated below by referring to the drawings in the specification and the specific embodiments.

In describing embodiments of the present utility model, unless otherwise indicated and limited thereto, the term "connected" should be construed broadly, for example, it may be an electrical connection, or may be a communication between two elements, or may be a direct connection, or may be an indirect connection via an intermediate medium, and it will be understood by those skilled in the art that the specific meaning of the term may be interpreted according to circumstances.

It should be noted that, the term "first\second\third" related to the embodiment of the present utility model is merely to distinguish similar objects, and does not represent a specific order for the objects, it is to be understood that "first\second\third" may interchange a specific order or sequence where allowed. It is to be understood that the "first\second\third" distinguishing objects may be interchanged where appropriate such that embodiments of the utility model described herein may be practiced in sequences other than those illustrated or described herein.

The air pump according to the embodiment of the present utility model will be described in detail with reference to fig. 1 to 7.

The air pump includes: housing 110, fan blade assembly 120, and first air guide channel 130. The housing 110 has an accommodating space 111, and an air inlet 112 and an air outlet 113 respectively communicating with the accommodating space 111; the fan blade assembly 120 is rotatably disposed in the accommodating space 111, and the fan blade assembly 120 is located between the air inlet 112 and the air outlet 113 in the axial direction of the fan blade assembly 120; the inlet of the first air guiding channel 130 is close to the rotating shaft side of the fan blade assembly 120, and the outlet of the first air guiding channel 130 is located at the peripheral side of the fan blade assembly 120, so that the external air is led out through the air inlet 112, the first air guiding channel 130, the peripheral side of the fan blade assembly 120 and the air outlet 113.

In the related art, the air pump generally comprises a shell and a fan arranged in the shell, an air outlet of the air pump is radially arranged on one side of the shell along the fan, at the moment, the distance between the periphery of the fan and the air outlet is smaller, the air speed at the air outlet is larger, howling can be generated, the noise at the air outlet is larger, and the use experience is poor. In the air pump of the present utility model, since the fan blade assembly 120 is located between the air inlet 112 and the air outlet 113 in the axial direction of the fan blade assembly 120, the inlet of the first air guiding channel 130 is close to the rotating shaft side of the fan blade assembly 120, and the outlet of the first air guiding channel 130 is located at the peripheral side of the fan blade assembly 120, so that the external air can be led out through the air inlet 112, the first air guiding channel 130, the peripheral side of the fan blade assembly 120 and the air outlet 113, at this time, the distance between the air outlet 113 and the peripheral side of the fan blade assembly 120 is larger, the air speed at the air outlet 113 is relatively smaller, howling is not generated, the noise at the air outlet 113 is smaller, and the use experience is good.

In the embodiment of the present utility model, the shape of the housing 110 is not limited. For example, in some embodiments, the housing 110 may be a columnar structure. As an example, as shown in fig. 1, the housing 110 may be generally cylindrical in structure.

The location of the air inlet 112 is not limited. For example, the air inlet 112 may be provided at an end of the housing 110 or may be provided on a peripheral side of the housing 110.

The installation position of the air outlet 113 is not limited. For example, the air outlet 113 may be provided at an end portion of the casing 110 or may be provided on a peripheral side of the casing 110.

As an example, as shown in fig. 1, the air inlet 112 is disposed at an end of the housing 110, and the air outlet 113 is disposed at a peripheral side of the housing 110; at this time, the external air is introduced from the air inlet 112 at the end of the housing 110, and is guided out through the first air guide duct 130, the outer circumferential side of the fan blade assembly 120, and the air outlet 113 at the circumferential side of the housing 110.

The air outlet 113 may be located at the end of the housing 110 along the rotation axis direction of the fan assembly 120, and because the inlet of the first air guiding channel 130 is close to the rotation axis side of the fan assembly 120, the external air enters from the air inlet 112 along the rotation axis direction of the fan assembly 120, so that the external air can more smoothly enter the inlet of the first air guiding channel 130.

In the embodiment of the present utility model, the manner in which the fan blade assembly 120 is rotatably disposed in the accommodating space 111 is not limited.

For example, the wind pump may further include a driving assembly 150, the driving assembly 150 may include a fixing member 151 and a rotating member 152, the fixing member 151 may be fixed in the receiving space 111 by means of a snap structure or a screw, etc., and the rotating member 152 is rotatably connected with the fixing member 151; the fan blade assembly 120 may be fixed to the rotating member 152, thereby enabling the fan blade assembly 120 to be rotatably disposed in the accommodating space 111.

Here, the driving assembly 150 may be a motor, the fixing member 151 may be a stator of the motor, and the rotating member 152 may be a rotation of the motor. As an example, the rotating member 152 may be an output shaft of the motor, and the fan blade assembly 120 may be fixed to the output shaft, so that the output shaft drives the fan blade assembly 120 to rotate when the motor is operated.

The configuration of the fan blade assembly 120 is not limited. For example, the fan blade assembly 120 may include a connection 121 and at least two blades 122. The connection part 121 is connected with the rotating member 152 of the driving assembly 150, the root of the blade 122 is connected with the connection part 121, and the end part of the blade 122 is positioned at the circumference side of the connection part 121; wind entering from the wind inlet 112 can flow from the root of the blade 122 along the blade 122 to the end of the blade 122; that is, the wind entering the air inlet 112 flows from the axial center of the fan blade assembly 120 to the circumferential side of the fan blade assembly 120, and the fan blade assembly 120 is more efficient than an axial fan, similar to a centrifugal fan.

In the embodiment of the present utility model, the forming manner of the first air guiding channel 130 is not limited. For example, the fan blade assembly 120 may include a connection part 121 and at least two blades 122, the connection part 121 being connected to the rotation member 152 of the driving assembly 150, the root of the blade 122 being connected to the connection part 121, the end of the blade 122 being located at the circumferential side of the connection part 121; a first air guide channel 130 is formed between two adjacent blades 122.

As another example, as shown in fig. 4, the fan blade assembly 120 may include a connection part 121, at least two blades 122, and a connection plate 123, the connection part 121 being connected to the rotation member 152 of the driving assembly 150, the root of the blade 122 being connected to the connection part 121, and the end of the blade 122 being located at the circumferential side of the connection part 121; wind entering from the wind inlet 112 can flow from the root of the blade 122 along the blade 122 to the end of the blade 122; the connection plate 123 is connected to one side of at least two blades 122, and the connection plate 123 and the at least two blades 122 define a first air guide channel 130; so that most of the air entering through the air inlet 112 flows through the first air guiding channel 130 through the connecting plate 123, and the air guiding efficiency of the first air guiding channel 130 is improved, thereby improving the working efficiency of the fan blade assembly 120.

In some optional implementations of embodiments of the present utility model, the accommodating space 111 may include: a first cavity 1111 and a second cavity 1112, which are adjacently arranged, wherein the first cavity 1111 is communicated with the air inlet 112, and the second cavity 1112 is communicated with the air outlet 113; the fan blade assembly 120 is disposed in the first cavity 1111; the first cavity 1111 and the second cavity 1112 have a first opening 114 communicating with each other at an inner wall of the housing 110, and an outlet of the first air guiding channel 130 corresponds to a position of the first opening 114, so that external air is led out through the air inlet 112, the first air guiding channel 130, the first opening 114, the second cavity 1112 and the air outlet 113, so that the external air can enter the second cavity 1112 through the first opening 114, and thus the structure arranged in the second cavity 1112 can be cooled.

In the present embodiment, the structure provided in the second chamber 1112 is not limited.

For example, the wind pump may further include: the driving assembly 150, the fixing member 151 of the driving assembly 150 is disposed in the second cavity 1112, and a portion of the rotating member 152 of the driving assembly 150 is located in the first cavity 1111 and connected to the fan blade assembly 120; so that heat generated in the operation of the fixing member 151 is taken away by external air entering the second chamber 1112, thereby improving the heat dissipation efficiency of the air pump.

For another example, the wind pump may further include: at least one battery 180, at least one battery 180 may be disposed in the second cavity 1112, and the battery 180 is configured to supply power to the driving assembly 150 so as to take away heat generated during operation of the battery 180 by external air entering the second cavity 1112, thereby improving heat dissipation efficiency of the air pump.

The number of the batteries 180 is not limited. For example, the air pump may include a battery 180. As another example, as shown in fig. 2, the wind pump may include two batteries 180, and the two batteries 180 may be located at opposite sides of the fixing member 151.

The battery 180 may be a rechargeable battery 180 or a disposable battery 180.

As another example, the wind pump may further include: the circuit board 170, the circuit board 170 can be connected with the battery 180 and the drive assembly 150 electricity respectively, and the circuit board 170 can be arranged in the second cavity 1112, and the circuit board 170 can be connected with the drive assembly 150 electricity, and the heat generated in the working process of the circuit board 170 can be taken away by the external gas entering the second cavity 1112, so that the heat dissipation efficiency of the air pump is improved.

In this implementation, the wind pump may further include: the second air guiding channel 140 is disposed at the inner wall of the housing 110, the inlet of the second air guiding channel 140 corresponds to the position of the first opening 114, and the outlet of the second air guiding channel 140 is located in the second cavity 1112, so as to provide a guiding effect for the external air entering the second cavity 1112 through the second air guiding channel 140.

As shown in fig. 5, the first air guide channel 130 may be bent along the first direction F1 in the circumferential direction of the fan blade assembly 120, so that the external air flows from the axial center side of the fan blade assembly 120 to the circumferential side of the fan blade assembly 120 and rotates along the first direction F1; the second air guiding channel 140 may be curved along the second direction F2 in the circumferential direction of the fan blade assembly 120; the first direction F1 and the second direction F2 are opposite; because the second direction F2 is opposite to the first direction F1, the external air in the first air guide channel 130 will rotate in the opposite direction when entering the second air guide channel 140, so that the external air just entering the second air guide channel 140 is blocked, a short pause state occurs, the external air cannot smoothly flow, the flow rate of the external air can be reduced, the wind speed at the air outlet 113 is reduced, and the noise at the air outlet 113 can be reduced due to the relatively small wind speed; meanwhile, the relatively small wind speed can also improve the pressure of the gas at the air outlet 113; when the air pump is an inflation air pump, the equipment to be inflated can be inflated by the higher pressure.

The first direction F1 and the second direction F2 are not limited. For example, in some embodiments, the first direction F1 may be a clockwise direction and the second direction F2 may be a counterclockwise direction. For another example, in other embodiments, the first direction F1 may be a counterclockwise direction and the second direction F2 may be a clockwise direction.

Of course, in other implementations, the second direction F2 and the first direction F1 may be the same, and at this time, the wind speed at the air outlet 113 is large.

In this embodiment, the formation of the first chamber 1111 and the second chamber 1112 is not limited. For example, the wind pump may further include: the partition 160, the partition 160 is disposed in the accommodation space 111, and the partition 160 partitions the accommodation space 111 into a first chamber 1111 and a second chamber 1112.

The position of the first opening 114 is not limited. For example, as shown in fig. 3, the first opening 114 may be located at a circumferential side of the partition 160, and the first opening 114 may be located at a junction of the partition 160 and an inner wall of the receiving space 111.

The number of the first openings 114 is not limited. For example, the circumferential side of the partition 160 may have at least two first openings 114, and the air pump may include at least two first air guide passages 130 and at least two second air guide passages 140, and the at least two first air guide passages 130 and the at least two second air guide passages 140 may communicate through the at least two first openings 114; here, the first opening 114 may correspond to at least one first wind guide channel 130 and at least one second wind guide channel 140.

The partition 160 may be disposed in the receiving space 111 by a snap structure or a screw structure. Of course, the partition 160 and the housing 110 may be integrally formed by injection molding or the like.

In the case that the air pump includes the driving assembly 150, the fixing member 151 may be disposed at the partition 160, and a portion of the rotating member 152 is connected with the fan blade assembly 120 through a through hole of the partition 160; one end of the fixing member 151 facing away from the partition 160 is formed with a gap with a wall of the second chamber 1112; the air outlet 113 is disposed on the peripheral side wall of the second cavity 1112, so that the external air is led out from the air outlet 113 through the peripheral side of the fixing member 151 and one end of the fixing member 151 away from the partition 160, thereby improving the contact area between the external air and the fixing member 151 and improving the heat dissipation capability of the air pump for the fixing member 151.

Of course, in other embodiments, the fixing member 151 may be fixed to other structures of the second cavity 1112, and the air outlet 113 may be disposed at an end wall of the second cavity 1112.

In the case that the air pump includes the circuit board 170, the circuit board 170 may be located at one end of the fixing member 151 facing away from the partition 160 and form a wall body of the second cavity 1112, so that the external air flows through the peripheral side of the fixing member 151, one end of the fixing member 151 facing away from the partition 160, and the circuit board 170 is led out from the air outlet 113, thereby improving the contact area between the external air and the circuit board 170 and improving the heat dissipation capability of the air pump for the circuit board 170.

Of course, in other embodiments, the circuit board 170 may be fixed to the second cavity 1112 at other positions.

In the case where the air pump includes at least one battery 180, the battery 180 may be disposed on the partition 160, the battery 180 is electrically connected to the driving assembly 150, and an end of the battery 180 facing away from the partition 160 is spaced from a wall of the second cavity 1112; the air outlet 113 is disposed on the peripheral side wall of the second cavity 1112, so that the external air is led out from the air outlet 113 through the peripheral side of the battery 180 and one end of the battery 180 away from the partition 160, thereby improving the contact area between the external air and the at least one battery 180 and improving the heat dissipation capability of the air pump for the at least one battery 180.

Of course, in other embodiments, the end of the battery 180 facing away from the separator 160 may also be in contact with the wall of the second cavity 1112; the at least one battery 180 may also be secured to other structures of the second cavity 1112.

In this implementation, as shown in fig. 4, the fan blade assembly 120 may include: the connecting part 121, at least two blades 122 and the connecting plate 123, wherein the connecting part 121 is connected with the rotating piece 152 of the driving assembly 150, and the connecting part 121 is arranged adjacent to the partition 160; the root of the blade 122 is connected to the connection portion 121, and the end of the blade 122 is located on the circumferential side of the connection portion 121; the connecting plate 123 is connected with one side of the at least two blades 122, which is away from the partition 160, and the connecting plate 123, the partition 160 and the at least two blades 122 define the first air guiding channel 130, so that the outside air has shielding structures in all directions of the first air guiding channel 130, most of the outside air flows along the first air guiding channel 130, and the efficiency of the fan blade assembly 120 is improved.

In this implementation, the wind pump may further include: the air deflector 190, the first end of air deflector 190 sets up in first opening 114 department, the unsettled second end that is located of air deflector 190 is in second cavity 1112, air deflector 190 and the inner wall of casing 110 define second air guide channel 140 jointly, so that external gas is derived through air intake 112, first air guide channel 130, first opening 114, second air guide channel 140, second cavity 1112 and air outlet 113, define second air guide channel 140 jointly through the inner wall of casing 110 and air deflector 190, do not need all to form second air guide channel 140 through air deflector 190, can reduce the wind-guiding structure, thereby the structure of reduction air pump.

As shown in fig. 6, a side of the air guide plate 190 away from the inner wall of the housing 110 may have a second opening 191 in communication with the second air guide channel 140, so that a portion of the external air flows through the second opening 191 to an end of the driving assembly 150 near the partition 160, and the remaining portion of the external air flows through the second air guide channel 140 to an end of the driving assembly 150 away from the partition 160; thereby, the external air can be contacted with most of the surface of the driving assembly 150, and the contact area between the external air and the driving assembly 150 can be further increased, so that the heat dissipation capability of the air pump for the driving assembly 150 can be further improved.

The external air flowing through the second air guiding channel 140 may also flow to one end of the at least one battery 180 near the partition 160 through the second opening 191, so that the contact area between the external air and the at least one battery 180 can be further increased, and the heat dissipation capability of the air pump for the at least one battery 180 can be further improved.

Of course, the air deflector 190 may not be provided with the second opening 191.

In some alternative implementations of embodiments of the utility model, as shown in fig. 7, the housing 110 may include a housing body 115, a top cover 116, and a bottom cover 117, and opposite sides of the housing body 115 may have a third opening 118 and a fourth opening 119; the top cover 116 covers the third opening 118, and the bottom cover 117 covers the fourth opening 119; the housing body 115, the top cover 116 and the bottom cover 117 define an accommodating space 111; so that the fan blade assembly 120 is accommodated in the accommodating space 111 through the third opening 118, and the driving assembly 150, the circuit board 170, and the at least one battery 180 are accommodated in the accommodating space 111 through the fourth opening 119.

In this implementation, the air inlet 112 may be disposed on the top cover 116, and the air outlet 113 may be disposed on the housing 115.

In this embodiment, the circuit board 170 may be provided with a light emitting member toward the bottom cover 117, and the bottom cover 117 may have a light transmitting structure so that light of the light emitting member can pass through the bottom cover 117.

In this implementation manner, the air pump may further include a key 210 and a control board 220 disposed in the housing 115, the control board 220 is disposed in the housing 115, the control board 220 may be electrically connected to the circuit board 170, a pressing portion of the key 210 is located outside the housing 115, a contact portion of the key 210 passes through the housing 115 and can contact with a control key on the control board 220, and the control board 220 may be electrically connected to the circuit board 170 so as to activate the control key by pressing the key 210.

In this implementation, the circuit board 170 may be provided with a charging interface 171, and the housing 115 may have a socket corresponding to the charging interface 171, so that the plug is electrically connected to the charging interface 171 through the socket to charge the battery 180. The air pump may further include a silica gel plug 230 disposed at the socket, and the silica gel plug 230 may be disposed at a position covering the socket to shield the socket and prevent dust from entering the charging interface 171 through the socket; the plug 230 may also be in a staggered position with respect to the socket to avoid the socket, facilitating the plug to charge the battery 180 by interfacing the socket with the charging interface 171.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (11)

1. An air pump, comprising:

the shell is provided with an accommodating space, and an air inlet and an air outlet which are respectively communicated with the accommodating space;

the fan blade assembly is rotatably arranged in the accommodating space and is positioned between the air inlet and the air outlet in the axial direction of the fan blade assembly;

the inlet of the first air guide channel is close to the rotating shaft side of the fan blade assembly, and the outlet of the first air guide channel is positioned at the peripheral side of the fan blade assembly, so that external air is led out through the air inlet, the first air guide channel, the peripheral side of the fan blade assembly and the air outlet.

2. The wind pump of claim 1, wherein the receiving space comprises: the first cavity is communicated with the air inlet, and the second cavity is communicated with the air outlet;

the fan blade assembly is arranged in the first cavity; the first cavity and the second cavity are provided with a first opening communicated with each other at the inner wall of the shell, and the outlet of the first air guide channel corresponds to the position of the first opening, so that external air is led out through the air inlet, the first air guide channel, the first opening, the second cavity and the air outlet.

3. The wind pump of claim 2, further comprising:

the second air guide channel is arranged at the inner wall of the shell, the inlet of the second air guide channel corresponds to the position of the first opening, and the outlet of the second air guide channel is positioned in the second cavity.

4. A wind pump according to claim 3, wherein the first wind-guiding channel is curved in a first direction in the circumferential direction of the blade assembly and the second wind-guiding channel is curved in a second direction in the circumferential direction of the blade assembly;

the first direction is opposite to the second direction.

5. The wind pump of claim 2, further comprising:

the fixing piece of the driving assembly is arranged in the second cavity, and the part of the rotating piece of the driving assembly is positioned in the first cavity and connected with the fan blade assembly.

6. The wind pump of claim 5, further comprising:

the partition plate is arranged in the accommodating space and divides the accommodating space into the first cavity and the second cavity;

the fixing piece is arranged on the partition board, and part of the rotating piece penetrates through the through hole of the partition board to be connected with the fan blade assembly;

one end of the fixing piece, which is away from the partition board, is formed with a gap with the wall body of the second cavity;

the air outlet is arranged on the peripheral side wall of the second cavity, so that external air is led out from the air outlet through the peripheral side of the fixing piece and one end of the fixing piece, which is away from the partition plate.

7. The wind pump of claim 6, further comprising:

the circuit board is located the mounting deviates from the one end of baffle, and forms the wall body of second cavity, so that external gas flows through the week side of mounting, the mounting deviates from the one end of baffle with the circuit board is followed the air outlet is derived.

8. The wind pump of claim 6, further comprising:

the battery is arranged on the partition board, the battery is electrically connected with the driving assembly, and a gap is formed between one end of the battery, which is away from the partition board, and the wall body of the second cavity;

the air outlet is arranged on the peripheral side wall of the second cavity, so that external air is led out from the air outlet through the peripheral side of the battery and one end of the battery, which is far away from the partition plate.

9. The wind pump of claim 6, wherein the fan blade assembly comprises:

the connecting part is connected with the rotating piece of the driving assembly and is arranged adjacent to the partition plate;

the root parts of the at least two blades are connected with the connecting part, and the end parts of the blades are positioned on the periphery side of the connecting part;

the connecting plate is connected with one side, away from the partition plate, of at least two blades, and the first air guide channel is defined by the connecting plate, the partition plate and the at least two blades.

10. The wind pump of claim 6, wherein a peripheral side of the partition has at least two of the first openings;

the air pump further includes:

the first end of aviation baffle set up in first opening part, the unsettled being located of second end of aviation baffle in the second cavity, the aviation baffle with the inner wall of casing defines the second wind-guiding passageway jointly, so that external air warp the air intake first wind-guiding passageway first opening, second wind-guiding passageway second cavity with the air outlet is derived.

11. The wind pump according to claim 10, wherein the air pump is configured to pump air through the air inlet,

the side of the air deflector, which is far away from the inner wall of the shell, is provided with a second opening communicated with the second air guide channel, so that part of external air flows to one end of the driving assembly, which is close to the partition plate, through the second opening.