Air pump device

Abstract

The utility model relates to air pump device, it includes carrier assembly, electric control assembly, air compression subassembly and air pressure sensor, wherein, carrier assembly at least includes mounting bracket, air compression subassembly, the inboard of fixed mounting bracket, it includes air compression spare and with the drive arrangement of circuit board electric connection, air compression spare is provided with compressed air output pipe and with compressed air output pipe intercommunication's air pressure detection cavity, air pressure sensor sets up in air pressure detection cavity, and is provided with with circuit board electric connection's conducting wire, mounting bracket is provided with separator, and conducting wire is located the outside of separator, and air compression spare is located the inside of separator, the utility model discloses can reduce the temperature influence of air compression spare to conducting wire, to can ensure the transmission effect of conducting wire.

Description

Technical Field

[0001] This utility model relates to an air pump device. Background Technology

[0002] An air pump is a device used to inject compressed air into the tires of bicycles, motorcycles, cars, etc. To ensure that the tire pressure meets the set value, a pressure sensor needs to be installed in the air pump to measure the pressure.

[0003] In traditional air pump devices, the air pressure sensor is connected to the circuit board via a conductive wire that bypasses the air compressor assembly. However, the high operating temperature of the air compressor assembly negatively impacts signal transmission via the conductive wire that bypasses it. Utility Model Content

[0004] One objective of this invention is to solve or alleviate the aforementioned technical problems.

[0005] The present invention employs an air pump device, comprising a carrier assembly, an electrical control assembly, an air compression assembly, and a pressure sensor. The carrier assembly includes at least a mounting frame. The electrical control assembly includes a circuit board and a power supply electrically connected to the circuit board, the circuit board being fixed to the outside of the mounting frame. The air compression assembly is fixed to the inside of the mounting frame and includes an air compressor and a drive device electrically connected to the circuit board. The air compressor has a compressed air output pipe and a pressure detection chamber communicating with the compressed air output pipe. The pressure sensor is disposed within the pressure detection chamber and has a conductive wire electrically connected to the circuit board. The mounting frame has a partition, with the conductive wire located outside the partition and the air compressor located inside the partition.

[0006] The effect achieved by this invention is to reduce the impact of the air compressor on the temperature of the conductive wire, thereby ensuring the transmission effect of the conductive wire.

[0007] A further technical solution includes a pressure sensor carrier plate and a pressure sensor mounting plate that is detachably and fixedly connected to the air compressor. The pressure sensor is fixed on the pressure sensor carrier plate, and the pressure sensor mounting plate abuts against the pressure sensor carrier plate. A conductive socket is provided on the side of the circuit board facing the pressure sensor. One end of the conductive wire is connected to the top of the pressure sensor carrier plate, and the other end is provided with a conductive plug that is inserted into the conductive socket. The partition has a conductive socket hole, and the top of the pressure sensor carrier plate passes through the conductive socket hole so that one end of the conductive wire is located above the partition.

[0008] This technical solution facilitates the assembly of air compression components and the connection between the air pressure sensor and the circuit board; it also improves the reliability of the conductive wires.

[0009] In a further technical solution, the carrier assembly also includes a housing assembly, which includes a side housing, a top cover with heat dissipation holes, and a bottom plate with ventilation holes; the side housing is fitted snugly onto the mounting frame, and at least one of the top cover and the bottom plate is detachably fixedly connected to the side housing.

[0010] This technical solution ensures that the outer wall of the air pump device is smooth and has a good feel.

[0011] A further technical solution includes a light-transmitting portion on the side housing, an input device for inputting electrical signals to the circuit board, and / or an output device for outputting electrical signals from the circuit board, with the output device facing the light-transmitting portion.

[0012] A further technical solution involves providing heat dissipation fins at the end of the air compressor that is furthest from the drive unit.

[0013] This technical solution can improve the heat dissipation effect of the air compressor and reduce the temperature of the air compressor during operation.

[0014] A further technical solution includes a mounting bracket comprising a left mounting bracket and a right mounting bracket; the power source is a battery and is fixed inside the mounting bracket, with rigid conductive plates fixedly disposed on the positive and negative terminals of the power source facing the circuit board; the right mounting bracket can move relative to the left mounting bracket along the rigid conductive plate and be fixedly connected to the left mounting bracket, and the rigid conductive plate can pass through the circuit board after moving along itself.

[0015] This technical solution facilitates the assembly of the power supply and the connection between the power supply and the circuit board.

[0016] A further technical solution also includes an output air pipe assembly, which includes an air pipe mounting component and a rotatable air pipe. The air pipe mounting component is provided with an air outlet and a flow groove communicating with the air outlet. The rotatable air pipe includes a rotatable sleeve fitted snugly on the air pipe mounting component and an extension pipe communicating with the flow groove.

[0017] This technical solution allows the extension tube to rotate around the axis of the air pipe installation component, making it easy to use.

[0018] A further technical solution includes a sealing ring in the output air tube assembly; the outer wall of the air tube mounting component is provided with a sealing ring groove, the sealing ring is embedded in the sealing ring groove and abuts against the inner wall of the rotatable sleeve; or, the inner wall of the rotatable sleeve is provided with a sealing ring groove, the sealing ring is embedded in the sealing ring groove and abuts against the outer wall of the air tube mounting component, and the sealing rings are respectively located on both sides of the flow groove.

[0019] This technical solution can ensure the airtightness between the tracheal fitting and the rotatable sleeve, while also ensuring the reliability of the rotatable sleeve's rotation relative to the tracheal fitting.

[0020] In a further technical solution, one end of the air pipe installation component is threadedly connected to the compressed air output pipe, and the end of the rotatable sleeve away from the shaft limiting wall abuts against the carrier assembly.

[0021] This technical solution allows for adjustment of the damping force when the rotatable sleeve rotates relative to the air pipe mounting component, making it easy to use.

[0022] A further technical solution is that the inner wall of the rotatable air tube is provided with a shaft limiting wall, the air tube mounting component is provided with a shaft limiting protrusion that abuts against the shaft limiting wall, and one end of the air tube mounting component is detachably fixedly connected to the compressed air output tube.

[0023] This technical solution ensures that the rotatable air tube will not detach from the air tube mounting bracket. Attached Figure Description

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

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

[0026] Figure 3 This is a rear view schematic diagram of the air pump device according to an embodiment of the present invention; the housing assembly 39 is not shown in the figure.

[0027] Figure 4 This is a three-dimensional exploded view of the air pump device according to an embodiment of the present invention. Figure 1 The output tracheal assembly 5 is not shown in the diagram.

[0028] Figure 5 This is a three-dimensional exploded view of the air pump device according to an embodiment of the present invention. Figure 2 The output tracheal assembly 5 is not shown in the diagram.

[0029] Figure 6 This is a three-dimensional exploded view of the output air tube assembly 5.

[0030] Figure 7 This is a schematic diagram of section SEC1.

[0031] Figure 8 This is a top view of the air pump device according to an embodiment of the present invention; the top cover 393 is not shown in the figure.

[0032] Figure 9 This is a schematic diagram of section SEC2.

[0033] Figure 10 This is a schematic diagram of section 3, SEC3.

[0034] Figure 11This is a schematic diagram of section 4, SEC4.

[0035] The accompanying drawings in the specification that best illustrate the technical features of this utility model are: Figure 10 .

[0036] Section 1 (SEC1); Section 2 (SEC2); Section 3 (SEC3); Section 4 (SEC4); Air compression assembly 1; Air compressor component 11; Air compression chamber 111; Compressed air output pipe 112; Air pressure detection chamber 114; Heat dissipation fins 115; Piston 119; Drive device 12; Motor 121; Speed ​​change gear 122; Transmission rod 123; Electrical control assembly 2; Circuit board 21; Conductive socket 212; Input device 218; Output device 219; Power supply 29; Rigid conductive sheet 291; Carrier assembly 3; Mounting bracket 31; Separator 311; Conductive socket hole 312; Left mounting Frame 318; Right mounting bracket 319; Housing assembly 39; Side housing 391; Light-transmitting part 392; Top cover 393; Heat dissipation hole 394; Base plate 395; Vent hole 396; Pressure sensor 4; Pressure sensor carrier plate 41; Conductive wire 411; Conductive plug 412; Pressure sensor mounting plate 42; Output air pipe assembly 5; Air pipe mounting piece 51; Air outlet 511; Flow groove 512; Shaft limiting protrusion 513; Rotatable air pipe 52; Rotatable sleeve 521; Extension tube 522; Shaft limiting wall 523; Air nozzle 529; Sealing ring 53; Sealing ring groove 531; Decorative cover 59. Detailed Implementation

[0037] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.

[0038] As a specific embodiment, the air pump device of this utility model includes an electronic control component 2, an air compression component 1, an air pressure sensor 4, and a carrier component 3.

[0039] The carrier assembly 3 includes at least a mounting bracket 31. The mounting bracket 31 is made of plastic or the like and has thermal insulation properties. The mounting bracket 31 has higher thermal insulation properties than the air compressor 11 described later (the air compressor 11 is usually made of metal, but it can also be made of other materials). In other words, the mounting bracket 31 has a lower thermal conductivity than the air compressor 11 described later. Of course, the mounting bracket 31 can also be made of other materials with a lower thermal conductivity than the air compressor 11.

[0040] The electronic control component 2 includes a circuit board 21 and a power supply 29 electrically connected to the circuit board 21. The circuit board 21 is fixed to the outside of the mounting bracket 31; for example, a screw (not shown in the attached figure) passes through the circuit board 21 and is screwed into the mounting bracket 31 to fix the circuit board 21 to the outside of the mounting bracket 31. The power supply 29 can be an electrical interface or a wire, or a battery as described later, etc., and is a structure capable of directly or indirectly supplying power to the electronic control component 2.

[0041] The air compression assembly 1, located inside the mounting bracket 31, includes an air compressor 11 and a drive device 12 electrically connected to the circuit board 21. The air compressor 11 has an air compression chamber 111, a compressed air output pipe 112 communicating with the air compression chamber 111, and a pressure detection chamber 114 communicating with the compressed air output pipe 112. A piston 119, which can be driven by the drive device 12 to reciprocate within the air compression chamber 111, is disposed within the air compression chamber 111. For example, as... Figure 5 , 7 As shown, the drive device 12 includes a motor 121 electrically connected to the circuit board 21 via wires (not shown in the figure). A motor gear (not shown in the figure) and fan blades are fixedly mounted on the rotational output end of the motor 121. The motor gear meshes with a crown-shaped gear 122. A transmission rod 123 is hinged to the transmission gear 122. The other end of the transmission rod 123 (the other end hinged to the transmission gear 122) is connected to a piston 119. The rotation of the motor 121 drives the motor gear and the fan blades to rotate, causing one end of the transmission rod 123 to rotate around the axis of the transmission gear 122. This causes the other end of the transmission rod 123 to drive the piston 119 to reciprocate within the air compression chamber 111. The rotation of the fan blades circulates air, improving heat dissipation and air supply. The specific structure of the air inlet (not shown in the figure) of the air compression chamber 111 is existing technology capable of compressing air in conjunction with the piston 119, and will not be described further here. It is easy to understand that the circuit board 21 can control the frequency of the reciprocating motion of the piston 119 by controlling the rotation speed of the motor 121, thereby controlling the air pressure in the compressed air output pipe 112. Of course, the air compression assembly 1 can also be a structure that compresses air through other moving parts, such as a structure that compresses air through the rotation of the piston 119.

[0042] The pressure sensor 4 is disposed in the pressure detection chamber 114 and is provided with a conductive line 411 electrically connected to the circuit board 21; the conductive line 411 is used to supply power to the pressure sensor 4 and / or for electrical signal transmission between the pressure sensor 4 and the circuit board 21.

[0043] like Figure 4 , 10As shown, the mounting bracket 31 is provided with a partition 311, the conductive wire 411 is located on the outside of the partition 311, and the air compressor 11 is located on the inside of the partition 311. The partition 311 can be located on the top of the mounting bracket 31, and its position can also be changed according to the air compressor 11. For example, in an embodiment where the compressed air output pipe 112 is arranged vertically (not shown in the attached figure), the partition 311 can be located on the side of the mounting bracket 31. In addition, the partition 311 can be part of the mounting bracket 31 or an independent component. Furthermore, the shape of the partition 311 can also be set as needed, for example, Figure 4 As shown, the partition 311 can be the bottom wall of the recessed groove provided on the top wall of the mounting frame 31; for embodiments where the top wall of the mounting frame 31 does not have a recessed groove (not shown in the attached drawings of this embodiment), the partition 311 can be the top wall of the mounting frame 31 and be a flat plate structure, that is, the top surface of the top wall of the mounting frame 31 is approximately a plane.

[0044] The working principle is as follows: As mentioned above, the piston 119 is driven by the drive device 12 to reciprocate within the air compression chamber 111, causing air to be compressed within the air compression chamber 111 and output from the compressed air output pipe 112. According to relevant physical laws, when air is compressed (the compressed air output pipe 112 is connected to a bicycle tire, etc., via the output air pipe assembly 5 described later, so the air is located in a completely sealed space and can be compressed), the air pressure increases and the temperature rises. The heat from the heated air is transferred to the air compressor 11, causing the temperature of the air compressor 11 to also rise.

[0045] The conductive wire 411 is located on the outside of the separator 311 and the air compressor 11 is located on the inside of the separator 311. This reduces the influence of the air compressor 11 on the temperature of the conductive wire 411, thereby ensuring the transmission effect of the conductive wire 411, especially ensuring the stability of the signal transmission effect of the conductive wire 411.

[0046] As one of the specific implementation methods, such as Figure 4 , 10As shown, the air pump device of this embodiment of the present invention further includes a pressure sensor carrier plate 41 and a pressure sensor mounting plate 42 (e.g., fixed with screws) detachably and fixedly connected to the air compressor 11. The pressure sensor 4 is fixed on the pressure sensor carrier plate 41, and the pressure sensor mounting plate 42 abuts against the pressure sensor carrier plate 41, so that the pressure sensor 4 is fixed in the pressure detection chamber 114. A conductive socket 212 is provided on the side of the circuit board 21 facing the pressure sensor 4. One end of the conductive wire 411 is connected to the top of the pressure sensor carrier plate 41, and the other end is provided with a conductive plug 412 that is inserted into the conductive socket 212. The partition 311 has a conductive socket hole 312, and the top of the pressure sensor carrier plate 41 passes through the conductive socket hole 312 so that one end of the conductive wire 411 is located above the partition 311. It is easy to understand that the pressure sensor carrier plate 41 is similar to the circuit board 21, and conductive copper sheets or the like are provided on it to realize the electrical connection between the pressure sensor 4 and the conductive wire 411. For embodiments of the mounting bracket 31 described later, including the left mounting bracket 318 and the right mounting bracket 319, such as Figure 4 , 8 As shown, the conductive socket hole 312 can be formed by the left mounting bracket 318 and the right mounting bracket 319 together. During assembly, one end of the conductive wire 411 with the conductive plug 412 is passed through the conductive socket hole 312 (in the embodiment where the mounting bracket 31 is described later, including the left mounting bracket 318 and the right mounting bracket 319, one side of the conductive socket hole 312 is open, so the end of the conductive wire 411 with the conductive plug 412 is easier to pass through the conductive socket hole 312. Of course, one end of the conductive wire 411 can also be connected to the circuit board 21 by soldering). After the air compression assembly 1 is installed on the mounting bracket 31, the top of the air pressure sensor carrier plate 41, the conductive wire 411, and the conductive plug 412 are all located outside the partition 311, which allows for convenient assembly. The conductive plug 412 is plugged into the conductive socket 212, which facilitates the assembly of the air compression assembly 1 and the connection between the pressure sensor 4 and the circuit board 21. In addition, the end of the conductive wire 411 connected to the pressure sensor carrier plate 41 is slightly higher than the separator 311 and there is a gap between the conductive wire 411 and the separator 311. The vibration generated by the air compression assembly 1 during operation will not cause the conductive wire 411 to wear (if the conductive wire 411 is directly connected to the pressure sensor 4, the pressure sensor 4 may come into contact with the corner of the separator 311; in this case, the vibration generated by the repeated operation of the air compression assembly 1 may cause the conductive wire 411 to wear and break). This can improve the reliability of the conductive wire 411.

[0047] As one specific implementation, the carrier assembly 3 also includes a housing assembly 39, which includes a side housing 391, a top cover 393 with heat dissipation holes 394, and a bottom plate 395 with ventilation holes 396. The side housing 391 is fitted onto the mounting bracket 31. At least one of the top cover 393 and the bottom plate 395 is detachably fixed to the side housing 391, for example, by means of snap-fit ​​connection, glue bonding, or screw connection. Alternatively, one of the top cover 393 and the bottom plate 395 may be integral with the side housing 391 to form a cup-like shape, while the other may be detachably fixed to the side housing 391. The air compressor assembly 1, circuit board 21, etc., are typically fixed to the mounting bracket 31 with screws. For example, the air compressor assembly 1 has a straight-line layout (i.e., the air compressor 11 is located directly above the drive unit 12) and is fixed to the mounting bracket 31. The battery power supply 29 is fixed to the mounting bracket 31, so that the power supply 29 is located beside the drive unit 12 and below the compressed air output pipe 112. The circuit board 21 is fixed to the outer wall of the mounting bracket 31. The screw holes that mate with the screws can affect the feel, etc. This embodiment can ensure that the outer wall of the air pump device is smooth and has a better feel. The base plate 395 is provided with an electrical interface, etc., which can supply power to the circuit board 21 or directly serve as the power supply 29.

[0048] As one specific implementation, the side housing 391 includes a light-transmitting portion 392, which can be a detachable part of the side housing 391 or the entire side housing 391. The circuit board 21 is provided with an input device 218 for inputting electrical signals to the circuit board 21, and / or an output device 219 for outputting electrical signals from the circuit board 21. For example, the input device 218 includes a switch button, a + button, and a - button. The switch button can be used to turn the air pump on or off, and the + and - buttons can be used to control the speed of the motor 121, thereby controlling the air pressure output from the compressed air output pipe 112. The output device 219 is a device capable of outputting optical signals, such as a digital tube displaying air pressure, and the output device 219 faces the light-transmitting portion 392. For the input device 218, which is a direct touch button, the input device 218 is exposed through the light-transmitting portion 392; for the input device 218, which is not a direct touch button, the input device 218 simply faces the light-transmitting portion 392.

[0049] As one specific embodiment, a heat dissipation fin 115 is provided at the end of the air compressor 11 furthest from the drive device 12 (i.e., the top end of the air compressor 11). This embodiment can improve the heat dissipation effect of the air compressor 11 and reduce the temperature of the air compressor 11 during operation of the air compression assembly 1.

[0050] As one of the specific implementation methods, such as Figure 11As shown, the mounting bracket 31 includes a left mounting bracket 318 and a right mounting bracket 319. The power supply 29 is a battery and is fixed inside the mounting bracket 31 (i.e., fixed to either the left mounting bracket 318 or the right mounting bracket 319, but not both). Both the positive and negative terminals of the power supply 29 are fixedly provided with rigid conductive plates 291 facing the circuit board 21. For example, the power supply 29 is a lithium battery, and the rigid conductive plates 291 are nickel plates, soldered to the positive and negative terminals of the power supply 29, respectively. The right mounting bracket 319 can move relative to the left mounting bracket 318 along the rigid conductive plates 291 and be fixedly connected to the left mounting bracket 318 (e.g., by snap-fit ​​or screw connection). After moving along its own length, the rigid conductive plate 291 can pass through the circuit board 21. After passing through the circuit board 21 and bending, the rigid conductive plate 291 is soldered to the pads (not shown in the attached diagram) of the circuit board 21 using solder or similar means. During assembly, first fix the circuit board 21 onto the mounting bracket 31. Then, bring the power supply 29 close to the circuit board 21 so that the rigid conductive sheet 291 passes through the mounting bracket 31 and the circuit board 21. Next, solder the rigid conductive sheet 291 to the circuit board 21. Finally, surround and fix the right mounting bracket 319 and the left mounting bracket 318 together. Alternatively, the power supply 29 can be fixed to either the right mounting bracket 319 or the left mounting bracket 318 first, and the rigid conductive sheet 291 will pass through the mounting bracket 31 and the circuit board 21 during the process of surrounding the right mounting bracket 319 and the left mounting bracket 318. This embodiment facilitates the assembly of the power supply 29 and the connection between the power supply 29 and the circuit board 21.

[0051] As one of the specific implementation methods, such as Figure 1 , 6As shown in Figure 7, the air pump device of this embodiment further includes an output air pipe assembly 5. The output air pipe assembly 5 includes an air pipe mounting member 51 and a rotatable air pipe 52. The air pipe mounting member 51 is provided with an air outlet 511 and a flow groove 512 communicating with the air outlet 511. It is easy to understand that the air outlet 511 communicates the inner cavity of the air pipe mounting member 51 with the outer side of the air pipe mounting member 51, and the flow groove 512 is formed on the outer wall of the air pipe mounting member 51 and communicates with the air pipe mounting member 51. The rotatable air pipe 52 includes a rotatable sleeve 521 fitted snugly on the air pipe mounting member 51 and an extension tube 522 communicating with the flow groove 512. The extension tube 522 communicates with the inner cavity of the rotatable sleeve 521, and the extension tube 522 is provided on the side wall of the rotatable sleeve 521 such that the axis of the extension tube 522 is perpendicular to the axis of the rotatable sleeve 521. Typically, one end of the extension tube 522 is inserted into a spout (not shown in the attached diagram) on the side wall of the rotatable sleeve 521, and the other end of the extension tube 522 is provided with an air nozzle 529, which is used to connect to the tire of a bicycle, etc. Compressed air output from the compressed air output tube 112 can sequentially pass through the inner cavity of the air pipe mounting member 51, the air outlet 511, the flow groove 512, the extension tube 522, and the air nozzle 529 before entering the tire of a bicycle, etc. The inner wall of the rotatable air pipe 52 is provided with an axle limiting wall 523, and the air pipe mounting member 51 is provided with an axle limiting protrusion 513 that abuts against the axle limiting wall 523, and one end of the air pipe mounting member 51 is detachably fixedly connected to the compressed air output tube 112. The extension tube 522 can rotate around the axis of the air pipe mounting member 51, which is convenient to use and ensures that the rotatable air pipe 52 will not fall off the air pipe mounting member 51. It is easy to understand that there is at least one air outlet 511, for example, Figure 6 , 7 The two shown. Additionally, the shape of the flow channel 512 is not necessarily... Figure 6 , 7 The circular ring shown can also be a semi-circular ring or other shapes that can form a gap for compressed air to flow through.

[0052] As one of the specific implementation methods, such as Figure 6 , 7 As shown, the output air tube assembly 5 also includes a sealing ring 53; the outer wall of the air tube mounting member 51 is provided with a sealing ring groove 531, and the sealing ring 53 is embedded in the sealing ring groove 531 and abuts against the inner wall of the rotatable sleeve 521; or, the inner wall of the rotatable sleeve 521 is provided with a sealing ring groove 531, and the sealing ring 53 is embedded in the sealing ring groove 531 and abuts against the outer wall of the air tube mounting member 51, with the sealing rings 53 located on both sides of the flow groove 512. This embodiment can ensure the airtightness between the air tube mounting member 51 and the rotatable sleeve 521, while ensuring that the air tube mounting member 51 and the rotatable sleeve 521 are coaxial, thereby ensuring the reliability of the rotation of the rotatable sleeve 521 relative to the air tube mounting member 51.

[0053] As one specific implementation, one end of the air hose mounting component 51 is threadedly connected to the compressed air output pipe 112, thereby detachably fixing one end of the air hose mounting component 51 to the compressed air output pipe 112. The end of the rotatable sleeve 521 away from the shaft limiting wall 523 abuts against the carrier assembly 3. The other end of the air hose mounting component 51 is provided with a rotating operating port (e.g., a cross-shaped or flathead screwdriver, for easy rotation with a cross-shaped or flathead screwdriver). A decorative cover 59 is detachably provided inside the rotatable air hose 52, covering the other end of the air hose mounting component 51. Rotating the air hose mounting component 51 causes it to move slightly along its axis, adjusting the force between the end of the rotatable sleeve 521 away from the shaft limiting wall 523 and the carrier assembly 3, thereby adjusting the damping force of the rotatable sleeve 521 relative to the air hose mounting component 51 during rotation, facilitating use.

[0054] The terms used in this invention, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are merely for distinction.

[0055] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0056] In this utility model, terms indicating direction or location such as top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, and below are used to indicate relative positions rather than absolute positions.

[0057] Terms used in this invention, such as "approximately," "generally," "approximately," and "similar," are limiting terms used to indicate features that are present but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context; for example, regarding dimensional deviations, the specific context may include, but is not limited to, relevant standards for dimensional tolerances.

Claims

1. An air pump device, comprising a carrier assembly (3), an electronic control assembly (2), an air compression assembly (1), and a pressure sensor (4); wherein, The carrier assembly (3) includes at least a mounting bracket (31); The electronic control assembly (2) includes a circuit board (21) and a power supply (29) electrically connected to the circuit board (21), the circuit board (21) being fixed to the outside of the mounting bracket (31); An air compression assembly (1) is located inside a fixed mounting bracket (31), which includes an air compressor (11) and a drive device (12) electrically connected to a circuit board (21); the air compressor (11) is provided with a compressed air output pipe (112) and a pressure detection chamber (114) communicating with the compressed air output pipe (112); A pressure sensor (4) is installed inside a pressure detection chamber (114) and is provided with a conductive wire (411) electrically connected to a circuit board (21). Its characteristic is that the mounting bracket (31) is provided with a partition (311), the conductive wire (411) is located outside the partition (311), and the air compressor (11) is located inside the partition (311).

2. The air pump device according to claim 1, characterized in that, It also includes a pressure sensor carrier plate (41) and a pressure sensor mounting plate (42) that is detachably and fixedly connected to the air compressor (11). The pressure sensor (4) is fixed on the pressure sensor carrier plate (41), and the pressure sensor mounting plate (42) abuts against the pressure sensor carrier plate (41). A conductive socket (212) is provided on the side of the circuit board (21) facing the pressure sensor (4). One end of the conductive wire (411) is connected to the top of the pressure sensor carrier plate (41), and the other end is provided with a conductive plug (412) that is plugged into the conductive socket (212). The partition (311) has a conductive socket hole (312), and the top of the pressure sensor carrier plate (41) passes through the conductive socket hole (312) so that one end of the conductive wire (411) is located above the partition (311).

3. The air pump device according to claim 1, characterized in that, The carrier assembly (3) also includes a housing assembly (39), which includes a side housing (391), a top cover (393) with heat dissipation holes (394) and a bottom plate (395) with ventilation holes (396); the side housing (391) is fitted onto the mounting bracket (31), and at least one of the top cover (393) and the bottom plate (395) is detachably fixedly connected to the side housing (391).

4. The air pump device according to claim 3, characterized in that, The side housing (391) includes a light-transmitting part (392) that is transparent to light, and an input device (218) for inputting electrical signals to the circuit board (21) is provided on the circuit board (21), and / or an output device (219) for outputting electrical signals from the circuit board (21), the output device (219) being directly opposite the light-transmitting part (392).

5. The air pump device according to claim 1, characterized in that, The end of the air compressor (11) away from the drive unit (12) is provided with heat dissipation fins (115).

6. The air pump device according to claim 1, characterized in that, The mounting bracket (31) includes a left mounting bracket (318) and a right mounting bracket (319); the power supply (29) is a battery and is fixed inside the mounting bracket (31). The positive and negative terminals of the power supply (29) are both fixedly provided with rigid conductive plates (291) facing the circuit board (21); the right mounting bracket (319) can move relative to the left mounting bracket (318) along the rigid conductive plate (291) and be fixedly connected to the left mounting bracket (318). After the rigid conductive plate (291) moves along itself, it can pass through the circuit board (21).

7. The air pump device according to claim 1, characterized in that, It also includes an output air pipe assembly (5), which includes an air pipe mounting part (51) and a rotatable air pipe (52). The air pipe mounting part (51) is provided with an air outlet (511) and a flow groove (512) communicating with the air outlet (511). The rotatable air pipe (52) includes a rotatable sleeve (521) fitted on the air pipe mounting part (51) and an extension pipe (522) communicating with the flow groove (512).

8. The air pump device according to claim 7, characterized in that, The output air tube assembly (5) also includes a sealing ring (53); the outer wall of the air tube mounting part (51) is provided with a sealing ring groove (531), the sealing ring (53) is embedded in the sealing ring groove (531) and abuts against the inner wall of the rotatable sleeve (521); or, the inner wall of the rotatable sleeve (521) is provided with a sealing ring groove (531), the sealing ring (53) is embedded in the sealing ring groove (531) and abuts against the outer wall of the air tube mounting part (51), and the sealing ring (53) is located on both sides of the flow groove (512).

9. The air pump device according to claim 7, characterized in that, One end of the air pipe mounting piece (51) is threaded to the compressed air output pipe (112), and the end of the rotatable sleeve (521) away from the shaft limiting wall (523) abuts against the carrier assembly (3).

10. The air pump device according to claim 7, characterized in that, The inner wall of the rotatable air pipe (52) is provided with a shaft limiting wall (523), the air pipe mounting part (51) is provided with a shaft limiting protrusion (513) that abuts against the shaft limiting wall (523), and one end of the air pipe mounting part (51) is detachably fixedly connected to the compressed air output pipe (112).

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