CN220705880U - Inflator - Google Patents

Abstract

The utility model relates to an inflator pump, which comprises a shell, wherein a motor, a fan arranged at one end of the motor, a transmission component connected with the motor, a cylinder component connected with the transmission component and an electric core electrically connected with the motor are arranged in the shell; the casing is linked together including air intake and the air outlet that runs through between air intake and the air outlet, and the inner wall protrusion of casing is provided with first wind-guiding muscle and second wind-guiding muscle, and first wind-guiding muscle sets up in the one side of keeping away from the electric core of motor, and the second wind-guiding muscle sets up in the axial tip of motor and is spaced apart with the motor, and motor and drive assembly are located at least partially between first wind-guiding muscle and the electric core, and drive assembly and cylinder assembly are located at least partially between motor and the second wind-guiding muscle, and the motor is adjacent the air intake, and the electric core is adjacent the air outlet. According to the utility model, the first air guide ribs and the second air guide ribs are arranged on the inner wall of the shell, so that the heat dissipation requirement of the inflator pump can be met without enlarging the internal heat dissipation area of the inflator pump, and the heat dissipation efficiency is high and the structure is compact.

Description

Inflator

Technical field

The utility model relates to the field of inflation, in particular to an inflation pump.

Background technique

The air pump is also called an inflator or air pump. Its principle is to drive the connecting rod piston to reciprocate in the cylinder through the operation of the motor. When the piston is on the suction stroke, the outlet check valve closes and the volume of the cavity increases, forming a negative pressure. Therefore, when the piston changes from the suction stroke to the compression stroke, the air inlet check valve closes, and the air outlet opens under the action of compressed air, realizing the output of compressed air, continuous circulation, and continuous pressurization until the set point is reached. The required pressure is then inflated to the target. The air pump is widely used in tires, rubber balls, rubber boats and other products. During the operation of the air pump, the motor and cylinder assembly will generate a large amount of heat, causing the internal temperature of the air pump to heat up and affecting the life of the piston seal.

The air pumps of the same size currently on the market generally have low heat dissipation, and the cycle life reliability of the cylinder components is poor. In order to improve the heat dissipation efficiency of the air pump, a common method is to enlarge the structure of the air pump, but this undoubtedly greatly reduces the portability of the air pump.

In view of this, it is indeed necessary to provide an improved air pump to overcome the shortcomings of the existing technology.

Utility model content

In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air pump with high heat dissipation efficiency and compact structure.

The technical solution adopted by the utility model to solve the existing technical problems is: an air pump, which includes a casing, a motor, a fan installed at one end of the motor, and a transmission assembly connected to the motor. , a cylinder assembly connected to the transmission assembly and a battery core electrically connected to the motor; the housing includes a penetrating air inlet and an air outlet, and the air inlet and the air outlet are connected, and the A first air guide rib and a second air guide rib are protrudingly provided on the inner wall of the casing. The first air guide rib is arranged on a side of the motor away from the battery core, and the second air guide rib is arranged on a side of the motor away from the battery core. At the axial end of the motor and spaced apart from the motor, the motor and the transmission assembly are at least partially located between the first air guide rib and the battery core, and the transmission assembly and the The cylinder assembly is at least partially located between the motor and the second air guide rib, the motor is adjacent to the air inlet, and the battery core is adjacent to the air outlet.

A further improvement is as follows: radial sides of the motor respectively form an air duct with the battery core and the first air guide rib, and the air guide area of the air duct is smaller than the air inlet area of the air inlet.

A further improvement is that: the motor has a first axis, the motor rotates around the first axis, and the cylinder assembly has a second axis, and the first axis is perpendicular to the second axis.

A further improvement is that the first air guide rib extends along the direction of the first axis.

A further improvement is that the second air guide rib includes an extension part extending along the second axis direction and an expansion part bent away from the transmission assembly.

A further improvement plan is: the inner wall of the housing is protrudingly provided with first and second wind isolation ribs, and the first wind isolation rib is provided at one end of the battery core close to the air inlet, so The battery core is in contact with the first wind-insulating rib, the second wind-insulating rib is disposed at an end of the first air-guiding rib away from the air inlet, and the second wind-insulating rib is perpendicular to the The first air guide rib is connected with the inner wall of the housing.

A further improvement is that the second wind-insulating ribs are arranged below the transmission assembly.

A further improvement is that the second wind isolation rib, the first air guide rib and the housing are enclosed to form a closed space.

A further improvement is that the air pump includes a sensor disposed in the housing and a control circuit board electrically connected to the sensor, the sensor is connected to the cylinder assembly, and the control circuit board is connected to the battery core. Electrical connection.

A further improvement plan is: the battery core and the motor are arranged in parallel, the transmission assembly and the cylinder assembly are located above the motor and the battery core, and the control circuit board is arranged in parallel to the motor. In the lower space, the air inlet is located below the fan, and the air outlet is located on the left side of the cylinder assembly and the battery core.

Compared with the prior art, the present utility model has the following beneficial effects: by arranging the first air guide rib and the second air guide rib on the inner wall of the casing, the first air guide rib and the The side wall of the battery core guides cooling air from the air inlet to the motor and the transmission assembly. The second air guide ribs have the effect of diverting and gathering wind, guiding the cooling air to blow to the cylinder assembly and the transmission assembly. battery core, so the heat dissipation needs of the air pump can be met without expanding the internal heat dissipation area of the air pump; the air guide area of the air duct is smaller than the air inlet area of the air inlet, which accelerates the flow rate of the cooling air. The heat dissipation efficiency of the air pump is improved; by arranging the first and second wind isolation ribs on the inner wall of the casing, hot air is prevented from flowing back to the air inlet and affecting the heat dissipation effect, which is beneficial to the inflating Pump heat dissipation.

Description of drawings

The specific embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings:

Figure 1 is a schematic diagram of the overall structure of the air pump of the present utility model;

Figure 2 is a schematic structural diagram of the air pump shown in Figure 1 from another angle;

Figure 3 is a schematic structural diagram of the air pump shown in Figure 1 with part of the housing removed;

FIG. 4 is a partial structural diagram of the housing of the air pump shown in FIG. 1 .

Meaning of the reference numerals in the figures:

Air pump 100 Motor 1

Fan 11 Drive assembly 2

Output gear 21 Reduction gear 22

Drive shaft 23 Cylinder assembly 3

Cylinder 31 Connecting rod 32

Piston 33 Output port 34

Air pipe 4 air inlet end 41

Exhaust end 42 Housing 5

Air duct 50 Air inlet 51

Air outlet 52 First air guide rib 53

Second air guide rib 54 extension 541

Expansion 542 First wind barrier 55

Second air barrier 56 sensor 6

Control circuit board 7 cells 8

First axis X1 Second axis X2

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device/element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

Please refer to Figures 1 to 3. The embodiment of the present invention relates to an air pump 100. The air pump 100 is widely used to inflate tires, rubber balls, rubber boats and other products. The air pump 100 includes a housing 5, which is provided with a motor 1, a fan 11 installed at one end of the motor 1, a transmission assembly 2 connected to the motor 1, and a transmission assembly 2 connected to the transmission assembly. The cylinder assembly 3 of 2, the air pipe 4 installed on the housing 5 and the battery core 8 electrically connected to the motor 1, the motor 1 transmits the power provided by the battery core 8 through the transmission component 2 The cylinder assembly 3 compresses air and outputs it through the air pipe 4, thereby inflating the target to be inflated.

Further, the transmission assembly 2 includes an output gear 21 connected to the motor 1, a reduction gear 22 meshing with the output gear 21, and a drive shaft 23 eccentrically arranged on the reduction gear 22. The cylinder assembly 3 includes a cylinder 31, a piston 33 movably arranged in the cylinder 31, a connecting rod 32 connected to the piston 33, and an output interface 34 installed at one end of the cylinder 31. The transmission assembly 2 is connected to the cylinder assembly 3 through the connecting rod 32, and the connecting rod 32 is rotationally connected to the driving shaft 23. Since the driving shaft 23 is eccentrically arranged on the reduction gear 22, when When the reduction gear 22 rotates, the connecting rod 32 drives the piston 33 to reciprocate in the cylinder 31 , and the output interface 34 outputs the compressed air in the cylinder 31 .

In this embodiment, the output interface 34 is bent in an L shape. The right-angled edge formed on the outside of the output interface 34 fits the inner wall of the housing 5 , and the right-angled edge formed on the inside of the output interface 34 fits The cylinder 31 makes reasonable use of the space between the housing 5 and the cylinder 31, and the structural layout is more compact and reasonable, which improves the portability and miniaturization of the air pump 100.

Please refer to Figures 1 and 3. The air pipe 4 includes an air inlet end 41 connected to the output interface 34 and an exhaust end 42 movably installed in the housing 5. The air inlet end 41 at least partially accommodates Inside the housing 5 , the exhaust end 42 extends out of the housing 5 . The air pipe 4 includes a storage state and a use state. When the air pipe 4 is in the storage state, the exhaust end 42 is connected to the housing 5; when the air pipe 4 is in use, the exhaust end 42 is connected to the housing 5. 42 is separated from the housing 5 . By storing the air tube 4 , the user can make the air pump 100 smaller in volume in the stored state, which is convenient for carrying the air pump 100 .

Please refer to Figures 2 and 3. The housing 5 includes a penetrating air inlet 51 and an air outlet 52. The air inlet 51 and the air outlet 52 are connected. The inner wall of the housing 5 is convex. There are first air guide ribs 53 and second air guide ribs 54 . The first air guide ribs 53 are arranged on the side of the motor 1 away from the battery core 8 . The second air guide ribs 54 Disposed at the axial end of the motor 1 and spaced apart from the motor 1, the motor 1 and the transmission assembly 2 are at least partially located between the first air guide rib 53 and the battery core 8, And the transmission assembly 2 and the cylinder assembly 3 are at least partially located between the motor 1 and the second air guide rib 54 , the motor 1 is adjacent to the air inlet 51 , and the battery core 8 is adjacent to the Air outlet 52. The first air guide ribs 53 and the side walls of the battery core 8 guide the cooling air from the air inlet 51 to the motor 1 and the transmission assembly 2, and the second air guide ribs 54 turn to converge. The effect of the wind guides the cooling air to blow towards the cylinder assembly 3 and the battery core 8. Therefore, the heat dissipation needs of the air pump 100 can be met without expanding the internal heat dissipation area of the air pump 100. The heat dissipation efficiency is high and the structure compact.

Further, the fan 11 is an axial flow fan. The motor 1 drives the fan 11 to rotate. External air is sucked in through the air inlet 51 and passes through the first air guide rib 53 and the battery core 8 . The side walls guide the air to the motor 1 and the transmission assembly 2 , and then to the cylinder assembly 3 and the battery core 8 through the second air guide ribs 54 , and finally flow out from the air outlet 52 .

In this embodiment, the radial sides of the motor 1 respectively form an air duct 50 with the battery core 8 and the first air guide rib 53. The air guide area of the air duct 50 is smaller than the air inlet area of the air inlet 51, which accelerates the flow rate of the cooling air and improves the heat dissipation efficiency of the air pump 100.

Please refer to FIG. 3 again. The motor 1 has a first axis X1. The motor 1 rotates around the first axis X1. The cylinder 31 has a second axis X2. The piston 33 is in the cylinder 31. It makes reciprocating motion along the second axis X2, and the first axis X1 is perpendicular to the second axis X2. The first air guide rib 53 extends along the direction of the first axis X1; the second air guide rib 54 includes an extension portion 541 extending along the second axis X2 direction and bends away from the transmission assembly 2. The folded expansion portion 542 increases the area of the cooling air blown to the cylinder assembly 3, so that the cooling effect of the cylinder assembly 3 is better.

Please refer to Figure 4, the inner wall of the shell 5 is protrudingly provided with a first wind-blocking rib 55 and a second wind-blocking rib 56. The first wind-blocking rib 55 is arranged at one end of the battery cell 8 close to the air inlet 51, and the battery cell 8 abuts against the first wind-blocking rib 55. The first wind-blocking rib 55 can not only fix the battery cell 8, but also block the backflow of hot air. It has a simple structure and good heat dissipation effect.

Further, the second air-insulating rib 56 is provided at one end of the first air-guiding rib 53 away from the air inlet 51 , and the second air-insulating rib 56 is perpendicular to the first air-guiding rib 53 . And connected with the inner wall of the housing 5, the second wind isolation rib 56 is arranged below the transmission assembly 2, the second wind isolation rib 56 and the first air guide rib 53 are connected with the shell The body 5 is surrounded by a closed space to prevent hot air from flowing back to the air inlet 51 and affecting the heat dissipation effect, which is beneficial to the heat dissipation of the air pump 100 .

Please refer to Figure 3, the air pump 100 also includes a sensor 6 arranged in the shell 5 and a control circuit board 7 electrically connected to the sensor 6, the control circuit board 7 is electrically connected to the battery cell 8, the sensor 6 is connected to the cylinder assembly 3, and is used to detect the air pressure of the cylinder 31. The control circuit board 7 controls the stopping or starting of the motor 1 according to the air pressure of the cylinder 31, so that the inflation pressure is within a safe range.

In this embodiment, the battery core 8 and the motor 1 are arranged side by side, the transmission assembly 2 and the cylinder assembly 3 are located above the motor 1 and the battery core 8 , and the air inlet 51 Located below the fan 11, the air outlet 52 is located on the left side of the cylinder assembly 3 and the battery core 8. The control circuit board 7 is arranged in parallel in the lower space of the motor 1, making full use of all The entire space of the air pump 100 is small. At the same time, the cooling air can take away the heat of the control circuit board 7 when it circulates in the housing 5. The structure is compact and the heat dissipation effect is good.

In the present invention, the first air guide rib 53 and the second air guide rib 54 are provided on the inner wall of the housing 5 , and the first air guide rib 53 and the side wall of the battery core 8 guide cooling. Wind blows from the air inlet 51 to the motor 1 and the transmission assembly 2 , and the second air guide ribs 54 have the effect of diverting and gathering wind, guiding the cooling air to blow to the cylinder assembly 3 and the battery core. 8. Therefore, the heat dissipation needs of the air pump 100 can be met without expanding the internal heat dissipation area of the air pump 100; the air guide area of the air duct 50 is smaller than the air inlet area of the air inlet 51, which accelerates the cooling air. The flow rate improves the heat dissipation efficiency of the air pump 100; by providing first and second air isolation ribs 55 and 56 on the inner wall of the housing 5, hot air is prevented from flowing back to the air inlet 51 and affecting heat dissipation. The effect is beneficial to heat dissipation of the air pump 100 .

The present invention is not limited to the above-mentioned specific embodiments. Those of ordinary skill in the art can easily understand that there are many other alternatives to the air pump of the present invention without departing from the principle and scope of the present invention. The protection scope of the present utility model shall be determined by the contents of the claims.

Claims (10)

1. An inflator pump comprises a shell, wherein a motor, a fan arranged at one end of the motor, a transmission component connected with the motor, a cylinder component connected with the transmission component and a battery cell electrically connected with the motor are arranged in the shell; the method is characterized in that: the shell comprises a penetrating air inlet and an air outlet, the air inlet is communicated with the air outlet, a first air guide rib and a second air guide rib are arranged on the inner wall of the shell in a protruding mode, the first air guide rib is arranged on one side, far away from the electric core, of the motor, the second air guide rib is arranged at the axial end portion of the motor and is spaced from the motor, the motor and the transmission assembly are at least partially located between the first air guide rib and the electric core, the transmission assembly and the air cylinder assembly are at least partially located between the motor and the second air guide rib, the motor is adjacent to the air inlet, and the electric core is adjacent to the air outlet.

2. The inflator of claim 1 wherein: the radial two sides of the motor respectively form an air channel with the battery cell and the first air guide rib, and the air guide area of the air channel is smaller than the air inlet area of the air inlet.

3. The inflator of claim 1 wherein: the motor has a first axis about which the motor rotates, and the cylinder assembly has a second axis, the first axis being perpendicular to the second axis.

4. The inflator of claim 3 wherein: the first wind guide rib extends along the direction of the first axis.

5. The inflator of claim 3 wherein: the second wind guide rib comprises an extension part extending along the second axis direction and an expansion part bending away from the transmission assembly.

6. The inflator of claim 1 wherein: the inner wall protrusion of casing is provided with first wind-proof muscle and second wind-proof muscle, first wind-proof muscle set up in the one end that is close to of electric core the air intake, electric core butt in first wind-proof muscle, the second wind-proof muscle set up in the one end that keeps away from of first wind-guiding muscle the air intake, the second wind-proof muscle perpendicular to first wind-guiding muscle, and with the inner wall connection of casing.

7. The inflator of claim 6, wherein: the second wind-proof rib is arranged below the transmission assembly.

8. The inflator of claim 6, wherein: the second wind-isolating rib, the first wind-guiding rib and the shell enclose a closed space.

9. The inflator of claim 1 wherein: the inflator pump comprises a sensor arranged in the shell and a control circuit board electrically connected with the sensor, wherein the sensor is connected with the cylinder assembly, and the control circuit board is electrically connected with the battery cell.

10. The inflator of claim 9, wherein: the battery cell with the motor is arranged side by side, drive assembly with the cylinder subassembly is located the motor with the top of battery cell, control circuit board parallel arrangement in the lower floor space of motor, the air intake is located the below of fan, the air outlet is located the cylinder subassembly with the left side of battery cell.