Air pump

Abstract

The embodiment of the utility model discloses an air pump. The air pump comprises a shell, a motor, a motor controller and a control panel, the motor is arranged in the shell and comprises a motor shell and a motor shaft, the motor shell is provided with a first end and a second end in the axial direction of the motor shaft, and the output end of the motor shaft extends out of the motor shell from the first end of the motor shell; the motor controller is arranged on the outer end face of the second end of the motor shell. The control panel is arranged on the outer wall of the shell and connected with the motor controller. The air pump is high in overall integration degree, small in size, small in occupied space when carried on a vehicle, convenient to store and good in user experience degree.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, and specifically relates to an air pump. Background Technology

[0002] Air pumps, as automotive auxiliary equipment, can be used for inflating tires and emergency rescue in vehicles, and are often referred to as in-vehicle air pumps. However, these air pumps are typically quite large, taking up considerable space when placed in a car. Furthermore, these air pumps suffer from poor component integration, complex assembly, limited functionality, and a poor user experience. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an air pump with high integration and small size.

[0005] The air pump of this utility model embodiment includes:

[0006] shell;

[0007] An electric motor is disposed within the housing. The electric motor includes a motor housing and a motor shaft. The motor housing has a first end and a second end along the axial direction of the motor shaft. The output end of the motor shaft extends out of the motor housing from the first end of the motor housing.

[0008] A motor controller is disposed on the outer end face of the second end of the motor housing;

[0009] A control panel is located on the outer wall of the housing and is connected to the motor controller.

[0010] The air pump of this utility model embodiment has a high degree of integration, small size, small space occupation when carried in the vehicle, easy storage, and good user experience.

[0011] In some embodiments, the motor controller includes a base, a PCB board, and electrical components disposed on the PCB board. The base is disposed on the outer end face of the second end of the motor housing, and the PCB board is disposed on the base and located on the side of the base away from the motor housing.

[0012] In some embodiments, the electrical component includes a pressure sensor, the PCB board is provided with a duct connector, the pressure sensor is connected to a first end of the duct connector, and the second end of the duct connector is connected to an air outlet channel inside the housing.

[0013] In some embodiments, the base is provided with a positioning pin and a first connecting hole, and the PCB board is provided with a plurality of second connecting holes. Some of the second connecting holes are inserted into the positioning pin, and the other second connecting holes are provided with connectors between them and the first connecting holes.

[0014] The electrical components also include an overload protector, a relay, and a temperature sensor. A mounting portion is provided on the outer periphery of the base, and a mounting groove is defined between the mounting portion and the side wall of the base. The overload protector is placed in the mounting groove and abuts against the mounting portion and the side wall of the base. The overload protector is connected to the PCB board via an electrical connector. One end of the electrical connector near the overload protector has a slot, the opening of which is parallel to the length direction of the mounting groove. The connection terminal of the overload protector is located within the slot. A through hole is provided on the base. The temperature sensor is located on the side of the PCB board facing the motor housing, and the temperature sensor is correspondingly positioned to the through hole.

[0015] In some embodiments, the motor includes a carbon brush assembly, which includes a brush holder, multiple sets of carbon brushes mounted on the brush holder, a positive cable, and a negative cable. Each set of carbon brushes includes a first carbon brush and a second carbon brush, wherein the first carbon brush is connected to the positive cable and the second carbon brush is connected to the negative cable.

[0016] In some embodiments, the second end of the motor housing has a rear end cover, the motor controller is disposed on the outside of the rear end cover, potting compound is injected into the motor controller, and the carbon brush assembly is disposed on the inside of the rear end cover;

[0017] The rear cover is provided with a wire passage hole, through which the positive cable and the negative cable are led out. The motor controller and the wire passage hole are offset in the axial direction of the motor shaft.

[0018] In some embodiments, the air pump further includes a lamp assembly disposed on the housing, the control panel being connected to the lamp assembly, and the lamp assembly having multiple lamp bodies for displaying different operating states.

[0019] In some embodiments, the plurality of lamp bodies include a first lamp body, a second lamp body, and a third lamp body. The first lamp body is used to display an air pressure state from 0 to a first threshold, the second lamp body is used to display an air pressure state from the first threshold to a second threshold, and the third lamp body is used to display an air pressure state from the second threshold to a preset saturation pressure. The first threshold is greater than 0 and less than the second threshold, and the second threshold is less than the preset saturation pressure.

[0020] In some embodiments, the plurality of lamp bodies include a fourth lamp body, a fifth lamp body, and a sixth lamp body, wherein the fourth lamp body is used to indicate a deflation state, the fifth lamp body is used to indicate a resting state, and the sixth lamp body is used to indicate an abnormal state;

[0021] Multiple lamps are arranged in a ring, and the number of lamps used to display the same working state is multiple and they are evenly distributed around the circumference of the lamp assembly. The lamps used to display different working states have different colors and / or different flashing frequencies.

[0022] The lamp assembly also includes a light-transmitting ring and an outer cover disposed on the housing, the light-transmitting ring and the outer cover being disposed sequentially on the outside of the lamp body.

[0023] In some embodiments, the control panel has a display panel, mode indicator lights, buttons, a first interface and a second interface, wherein the first interface is connected to the motor controller and the second interface is connected to the lamp assembly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the air pump according to an embodiment of the present utility model.

[0025] Figure 2 This is a cross-sectional schematic diagram of the air pump according to an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the rear end cover of the air pump in an embodiment of this utility model.

[0027] Figure 4 This is a schematic diagram of the motor controller in the air pump according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the motor controller in the air pump according to another perspective of this utility model embodiment.

[0029] Figure 6 This is an exploded view of the motor controller in the air pump according to an embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram showing the connection between the carbon brush assembly and the rear end cover in the air pump of this utility model embodiment.

[0031] Figure 8 This is a schematic diagram showing the arrangement of the lamp assembly and control panel in the air pump according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Air pump;

[0034] 1. Outer shell;

[0035] 2. Motor; 21. Motor housing; 211. Rear end cover; 2111. Wire hole; 22. Carbon brush assembly; 221. Brush holder; 222. First carbon brush; 223. Second carbon brush; 224. Positive cable; 225. Negative cable; 23. Motor shaft; 231. Output terminal;

[0036] 3. Motor controller; 31. Base; 311. Through hole; 312. Mounting part; 3121. Mounting slot; 313. Positioning pin; 314. First connecting hole; 32. PCB board; 321. Second connecting hole; 33. Pressure sensor; 34. Overload protector; 341. Connecting terminal; 35. Relay; 36. Temperature sensor; 37. Electrical connector; 371. Slot; 38. Air pipe connector;

[0037] 4. Control panel; 41. Display panel; 42. Buttons; 43. First interface; 44. Second interface; 45. Mode indicator light;

[0038] 5. Lamp assembly; 51. Lamp body; 52. Light-transmitting ring; 53. Outer cover. Detailed Implementation

[0039] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] The air pump 100 of this utility model embodiment is described below.

[0041] See Figures 1 to 8 The air pump 100 of this utility model embodiment includes a housing 1, a motor 2, a motor controller 3, and a control panel 4.

[0042] The motor 2 is housed within the outer casing 1. The motor 2 includes a motor housing 21 and a motor shaft 23. A stator can be mounted on the inner wall of the motor housing 21, and a rotor corresponding to the stator can be mounted on the motor shaft 23. The motor housing 21 has a first end and a second end along the axial direction of the motor shaft 23. The output end 231 of the motor shaft 23 extends out of the motor housing 21 from the first end. The output end 231 of the motor shaft 23 is connected to the air supply unit in the air pump 100. When the motor 2 is energized, the output end 231 of the motor shaft 23 outputs torque, driving the air supply unit to move and provide compressed gas. The compressed gas flows out through the outlet passage within the outer casing 1.

[0043] See Figures 2 to 6The motor controller 3 is located on the outer end face of the second end of the motor housing 21. By integrating the motor controller 3 into the second end of the motor housing 21, the axial space of the motor 2 is fully utilized, achieving an integrated design of the motor 2 and the motor controller 3. In this embodiment, the second end of the motor housing 21 is used as a base, which not only facilitates the integrated assembly of the motor controller 3 and the motor 2, resulting in a more compact structure and better stability, but also reduces the cable length between the motor 2 and the motor controller 3, preventing noise caused by collisions between the cable and the housing 1 during operation. It also reduces the need for cable fixing structures, making subsequent assembly easier. This embodiment more effectively utilizes the space within the housing 1, improving space utilization and preventing interference between the motor controller 3 and other components within the housing 1.

[0044] Compared with air pumps in related technologies, the air pump 100 of this utility model embodiment has a higher overall integration, smaller size, smaller space occupation when carried in the vehicle, and is easy to store, while maintaining the same performance. It also provides a better user experience.

[0045] The control panel 4 is located on the outer wall of the housing 1 and is connected to the motor controller 3. The control panel 4 can set and adjust the mode of the air pump 100, and can also display information such as the current inflation pressure, which is convenient for users to make personalized settings. It can be applied to different working conditions and has good practicality.

[0046] In some embodiments, see Figure 8 The air pump 100 also includes a lamp assembly 5, which is mounted on the housing 1. The control panel 4 is connected to the lamp assembly 5. The lamp assembly 5 has multiple lamp bodies 51, which are used to display different working states respectively.

[0047] In this embodiment, the air pump 100 can use the color and flashing frequency of different lights 51 to indicate the phased working status of the air pump 100, so that the user can understand the current working status of the air pump 100. By providing diverse information feedback methods, users have sufficient time to operate the air pump 100, improving their awareness of the air pump's working status and enhancing the user experience.

[0048] The air pump 100 in some specific embodiments of this utility model is described below.

[0049] See Figures 1 to 8 An air pump 100 includes a housing 1, an air supply component, a motor 2, a motor controller 3, a control panel 4, and a light assembly 5.

[0050] The motor 2 is located inside the housing 1. The motor 2 includes a motor housing 21, a motor shaft 23, a stator, a rotor, and a carbon brush assembly 22. The stator is located on the inner wall of the motor housing 21, and the rotor is located on the motor shaft 23.

[0051] See Figure 2 and Figure 3 The motor housing 21 has a first end and a second end along the axial direction of the motor shaft 23. It is understood that the first end of the motor housing 21 has a front end cover, and the second end of the motor housing 21 has a rear end cover 211. The rear end cover 211 has a wire-passing hole 2111. The output end 231 of the motor shaft 23 extends from the front end cover of the first end of the motor housing 21.

[0052] The output end 231 of the motor shaft 23 is driven by the air supply unit in the air pump 100. The air supply unit can be a piston cylinder, and the piston rod of the piston cylinder is driven by the output end 231 of the motor shaft 23, thereby converting the rotational motion of the motor shaft 23 into the linear reciprocating motion of the piston rod. The intake and exhaust are achieved through the reciprocating movement of the piston in the piston cylinder. After the motor 2 is powered on, the output end 231 of the motor shaft 23 outputs torque, which drives the air supply unit to move to provide compressed gas. The compressed gas flows out through the outlet air passage in the outer casing 1.

[0053] See Figure 4 and Figure 5 The motor controller 3 is located on the outer end face of the rear end cover 211 at the second end of the motor housing 21. Specifically, the motor controller 3 includes a base 31, a PCB board 32, and electrical components mounted on the PCB board 32. The base 31 is located on the outer end face of the rear end cover 211 and abuts against the outer end face of the rear end cover 211. The base 31 and the rear end cover 211 can be fixedly connected by bolts or other connecting parts.

[0054] See Figure 6 The PCB board 32 is mounted on the base 31 and located on the side of the base 31 facing away from the motor housing 21. The side of the base 31 facing away from the motor housing 21 has two positioning pins 313 and two first connecting holes 314. The positioning pins 313 and first connecting holes 314 are arranged at intervals along the circumference of the PCB board 32, with the two positioning pins 313 and the two first connecting holes 314 also arranged approximately diagonally. The PCB board 32 has four second connecting holes 321, two of which are inserted into the corresponding positioning pins 313, and the other two are connected to the first connecting holes 314 by bolts or other connecting components. During assembly, the two second connecting holes 321 on the PCB board 32 are first aligned and inserted into the positioning pins 313 for pre-assembly. Then, bolts or other connecting components are installed in the corresponding second connecting holes 321 and first connecting holes 314 to fix the PCB board 32 onto the base 31.

[0055] In this embodiment, the positioning pin 313 facilitates subsequent assembly and positioning, improves assembly efficiency and positioning accuracy, and enhances the structural stability of motor 2 and motor controller 3.

[0056] The electrical components include a pressure sensor 33, an overload protector 34, a relay 35, and a temperature sensor 36. A PCB board 32 has a pipe connector 38, which can be fixedly connected to the PCB board 32 using bolts or other connectors. The pressure sensor 33 can be integrated onto the PCB board 32 and is connected to the first end of the pipe connector 38. To improve sealing performance, an annular sealing ring can be provided at the first end of the pipe connector 38 to prevent air leakage after the pipe connector 38 comes into contact with the pressure sensor 33. The second end of the pipe connector 38 is connected to the air outlet channel inside the housing 1. The pressure sensor 33 can acquire the air pressure value in the air outlet channel in real time, thereby determining the current pumping air pressure of the air pump 100. The pressure sensor 33 can transmit the detected data to the control panel 4, where it is displayed or indicated by the light assembly 5.

[0057] The base 31 is generally elongated, with its two ends along its length roughly flush with the outer circumferential edge of the rear end cover 211, and a certain distance between the two sides of the base 31 along its width and the outer circumferential edge of the rear end cover 211. A mounting portion 312 is provided on the outer periphery of the base 31; specifically, the mounting portion 312 is located on one side of the base 31 along its width, and its outer edge can be roughly flush with the outer circumferential edge of the rear end cover 211.

[0058] The mounting portion 312 is a generally L-shaped plate. A mounting groove 3121 is defined between the mounting portion 312 and the side wall of the base 31. The overload protector 34 is placed in the mounting groove 3121 and abuts against the side wall of the mounting portion 312 and the base 31. The overload protector 34 is connected to the PCB board 32 via an electrical connector 37. The electrical connector 37 is L-shaped. The end of the electrical connector 37 near the overload protector 34 has a slot 371. The opening of the slot 371 is parallel to the length direction of the mounting groove 3121. The connection terminal 341 of the overload protector 34 is located in the slot 371. When installing the overload protector 34, it can be pushed into the mounting groove 3121 along its length. After the overload protector 34 is pushed into place, the connection terminal 341 of the overload protector 34 is placed in the slot 371. The connection terminal 341 and the electrical connector 37 are fastened together with a nut. The overload protector 34 does not require any other fixing structure for fixation, which ensures its structural stability and facilitates disassembly and assembly.

[0059] A through hole 311 is provided on the base 31, and the temperature sensor 36 is located on the side of the PCB board 32 facing the motor housing 21, with the temperature sensor 36 corresponding to the through hole 311. The temperature sensor 36 can be closer to the rear end cover 211 of the motor 2 through the through hole 311, which facilitates more accurate acquisition of the operating temperature of the motor 2.

[0060] This embodiment integrates the motor controller 3 into the second end of the motor housing 21, making full use of the axial space of the motor 2 to achieve an integrated design of the motor 2 and the motor controller 3. This embodiment uses the rear end cover 211 of the second end of the motor housing 21 as a base, which not only facilitates the integrated assembly of the motor controller 3 and the motor 2, resulting in a more compact structure and better stability, but also reduces the cable length between the motor 2 and the controller, preventing noise caused by collisions between the cable and the housing 1 during operation. It also reduces the need for cable fixing structures and the space occupied by the cable, facilitating later assembly.

[0061] This embodiment can more effectively utilize the space inside the housing 1, improving space utilization and avoiding interference between the motor controller 3 and other components inside the housing 1. In this embodiment, the air pump 100, even with limited internal space, integrates the air pressure sensor 33, overload protector 34, relay 35, and temperature sensor 36 onto the rear end cover 211 of the motor 2, thus enabling the air pump 100 to perform functions such as air pressure detection, temperature detection, overload protection, and motor control. The motor controller 3 can be injected with potting compound; after curing, the potting compound can absorb vibration and impact, and also provides waterproofing and moisture resistance, protecting electrical components from damage. The motor controller 3 can achieve IP68 level component protection.

[0062] In this embodiment, the carbon brush assembly 22 is located inside the rear end cover 211. The carbon brush assembly 22 includes a brush holder 221, two sets of carbon brushes mounted on the brush holder 221, a positive electrode cable 224, and a negative electrode cable 225. The brush holder 221 is fixedly connected to the rear end cover 211 by bolts or other connecting components. Each set of carbon brushes includes a first carbon brush 222 and a second carbon brush 223. The first carbon brush 222 is connected to the positive electrode cable 224, and the second carbon brush 223 is connected to the negative electrode cable 225.

[0063] The positive cable 224 and the negative cable 225 are led out through the cable guide hole 2111, and the motor controller 3 is offset from the cable guide hole 2111 in the axial direction of the motor shaft 23. Specifically, the cable guide hole 2111 and the mounting part 312 are located on both sides of the base 31 in the width direction. After passing through the cable guide hole 2111, the positive cable 224 and the negative cable 225 will not interfere with the motor controller 3, and it is also convenient to connect the cables to the motor controller 3.

[0064] In this embodiment, both the lamp assembly 5 and the control panel 4 are located on the outer wall of the housing 1, and the lamp assembly 5 is connected to the control panel 4. The lamp assembly 5 includes multiple lamp bodies 51, a light-transmitting ring 52 and an outer cover 53 disposed on the housing 1. The light-transmitting ring 52 and the outer cover 53 are sequentially disposed on the outside of the lamp bodies 51. The lamp bodies 51 can be RGB LEDs. The light-transmitting ring 52 can be made of PC material and contains a certain amount of diffusing powder, so that the lamp assembly 5 can obtain a softer light effect when emitting light.

[0065] Multiple lamps 51 are used to display different operating states of the air pump. Specifically, the multiple lamps 51 include a first lamp, a second lamp, a third lamp, a fourth lamp, a fifth lamp, and a sixth lamp. The number of each of the first, second, third, fourth, fifth, and sixth lamps can be two, with the 12 lamps 51 evenly distributed in a ring along the circumference. Identical lamps can be arranged opposite each other to improve the visual effect of the lighting. The lamps used to display different operating states can have different colors and / or different flashing frequencies. In application, the lighting performance of different lamps can be controlled by programming, supporting user-defined RGB modes to make the light emitted by different lamps more distinctive and improve the user experience.

[0066] The first light is used to display the air pressure status from 0 to a first threshold value, which can be 50% to 80% of the preset saturation pressure. For example, the first threshold value can be 50%, 66%, 74%, or 80% of the preset saturation pressure. Preferably, in this embodiment, the first threshold value is 70% of the preset saturation pressure. The first light can be a green light. When the air pressure during pumping is between 0 and 70% of the preset saturation pressure, the first light will flash slowly, indicating to the user that the system is currently inflating and that the current inflation pressure is relatively low, requiring some time to fully inflate; the user should wait patiently.

[0067] The second light is used to display the air pressure status between a first threshold and a second threshold. The second threshold can be 90% to 98% of the preset saturation pressure. For example, the second threshold can be 90%, 93%, 97%, or 98% of the preset saturation pressure. Preferably, in this embodiment, the second threshold is 95% of the preset saturation pressure. The second light can be a warm light. When the air pressure during pumping is between 70% and 95% of the preset saturation pressure, the second light flashes slowly, which can remind the user that the current inflation pressure is close to the saturation pressure and that the pump's operating status needs to be monitored.

[0068] The third light is used to display the air pressure status from the second threshold to the preset saturation pressure. The third light can be red. When the air pressure during pumping is between 95% and 100% of the preset saturation pressure, the third light will flash slowly, which can prompt the user to turn off the air pump or to indicate that the air pump will soon automatically stop working and the next tire can be inflated.

[0069] The fourth light is used to indicate the deflation status. This fourth light can be a blue light; a slow flashing blue light indicates to the user that the system is currently deflating.

[0070] The fifth light is used to indicate the resting state. This fifth light can be a white light; when the white light is constantly on, it indicates to the user that the device is currently in a resting state (not in operation). The fifth light can also be configured as a breathing light, a scrolling light, or a multi-color constant-on light, etc.

[0071] The sixth light is used to indicate abnormal conditions. This sixth light can be a red light. When the red light is constantly on, it indicates to the user that the air pump is malfunctioning, such as overheating, hardware errors, or excessive air pressure, allowing the user to take immediate action.

[0072] In this embodiment, the control panel 4 has a display panel 41, a mode indicator light 45, buttons 42, a first interface 43, and a second interface 44. The first interface 43 is connected to the motor controller 3, and the second interface 44 is connected to the lamp assembly 5. The buttons 42 can be used for mode adjustment and function setting, and can also be used as start / stop buttons. The mode indicator light 45 can indicate the current mode status by remaining constantly lit. The display panel 41 can display information such as air pressure units and air pressure values, facilitating personalized settings by the user and making it suitable for different working conditions, thus offering good practicality.

[0073] The control panel 4 can provide feedback to the user on the working status of the air pump 100 through the color of the lights and the flashing frequency, indicating the phased working status of the air pump so that the user can understand the current working status of the air pump. By providing diverse information feedback methods, users have sufficient time to operate the air pump, improving their awareness of the air pump's working status and enhancing the user experience.

[0074] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0077] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air pump, characterized in that, include: shell; An electric motor is disposed within the housing. The electric motor includes a motor housing and a motor shaft. The motor housing has a first end and a second end along the axial direction of the motor shaft. The output end of the motor shaft extends out of the motor housing from the first end of the motor housing. A motor controller is disposed on the outer end face of the second end of the motor housing; A control panel is located on the outer wall of the housing and is connected to the motor controller.

2. The air pump according to claim 1, characterized in that, The motor controller includes a base, a PCB board, and electrical components mounted on the PCB board. The base is located on the outer end face of the second end of the motor housing, and the PCB board is mounted on the base and located on the side of the base away from the motor housing.

3. The air pump according to claim 2, characterized in that, The electrical component includes a pressure sensor, the PCB board is provided with a duct connector, the pressure sensor is connected to the first end of the duct connector, and the second end of the duct connector is connected to the air outlet channel inside the housing.

4. The air pump according to claim 2, characterized in that, The base is provided with a positioning pin and a first connecting hole, and the PCB board is provided with a plurality of second connecting holes. Some of the second connecting holes are inserted into the positioning pin, and the other second connecting holes are provided with connectors between them and the first connecting holes. The electrical components also include an overload protector, a relay, and a temperature sensor. A mounting portion is provided on the outer periphery of the base, and a mounting groove is defined between the mounting portion and the side wall of the base. The overload protector is placed in the mounting groove and abuts against the mounting portion and the side wall of the base. The overload protector is connected to the PCB board via an electrical connector. One end of the electrical connector near the overload protector has a slot, the opening of which is parallel to the length direction of the mounting groove. The connection terminal of the overload protector is located within the slot. A through hole is provided on the base. The temperature sensor is located on the side of the PCB board facing the motor housing, and the temperature sensor is correspondingly positioned to the through hole.

5. The air pump according to any one of claims 1 to 4, characterized in that, The motor includes a carbon brush assembly, which includes a brush holder, multiple sets of carbon brushes mounted on the brush holder, a positive electrode cable, and a negative electrode cable. Each set of carbon brushes includes a first carbon brush and a second carbon brush. The first carbon brush is connected to the positive electrode cable, and the second carbon brush is connected to the negative electrode cable.

6. The air pump according to claim 5, characterized in that, The second end of the motor housing has a rear end cover, the motor controller is located on the outside of the rear end cover, potting compound is injected into the motor controller, and the carbon brush assembly is located on the inside of the rear end cover. The rear cover is provided with a wire passage hole, through which the positive cable and the negative cable are led out. The motor controller is offset from the wire passage hole in the axial direction of the motor shaft.

7. The air pump according to claim 1, characterized in that, The air pump also includes a lamp assembly, which is mounted on the housing. The control panel is connected to the lamp assembly, and the lamp assembly has multiple lamp bodies, which are used to display different working states respectively.

8. The air pump according to claim 7, characterized in that, The plurality of lamp bodies include a first lamp body, a second lamp body, and a third lamp body. The first lamp body is used to display the air pressure state from 0 to a first threshold, the second lamp body is used to display the air pressure state from the first threshold to a second threshold, and the third lamp body is used to display the air pressure state from the second threshold to a preset saturation pressure. The first threshold is greater than 0 and less than the second threshold, and the second threshold is less than the preset saturation pressure.

9. The air pump according to claim 7 or 8, characterized in that, The plurality of lamp bodies include a fourth lamp body, a fifth lamp body, and a sixth lamp body, wherein the fourth lamp body is used to indicate the venting state, the fifth lamp body is used to indicate the resting state, and the sixth lamp body is used to indicate the abnormal state; Multiple lamps are arranged in a ring, and the number of lamps used to display the same working state is multiple and they are evenly distributed around the circumference of the lamp assembly. The lamps used to display different working states have different colors and / or different flashing frequencies. The lamp assembly also includes a light-transmitting ring and an outer cover disposed on the housing, the light-transmitting ring and the outer cover being disposed sequentially on the outside of the lamp body.

10. The air pump according to claim 7, characterized in that, The control panel has a display panel, mode indicator lights, buttons, a first interface and a second interface. The first interface is connected to the motor controller and the second interface is connected to the lamp assembly.

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