External power storage pump

Abstract

The utility model belongs to the technical field of air pumps, and particularly relates to an external power storage pump which comprises a shell, a top cover arranged at the top of the shell, a bottom plate arranged at the bottom of the shell and a pump body arranged between the top cover and the bottom plate, an air inlet is formed in the top cover, an air outlet is formed in the bottom plate, and the pump body is provided with an air outlet. A flow channel communicated with the air inlet and the air outlet is formed in the side wall of the shell. Compared with the prior art, by means of the ingenious structural design and the unique flow channel arranged on the side wall of the shell, better drainage can be achieved, and therefore air pressure loss can be reduced, and inflation efficiency can be improved. In addition, by arranging the fan blade assembly of a unique structure and the structure beside the top of the flow channel, the air pressure loss can be further reduced. Meanwhile, the air hole is formed in the top of the shell (after assembly, the air hole is located below the fan blade assembly), in the using process, a small air flow passes through the air hole, heat dissipation can be conducted on the motor, and therefore the service life of the motor is prolonged.

Description

An externally mounted electric pump Technical Field

[0001] This utility model belongs to the field of air pump technology, and in particular relates to an externally mounted electric pump. Background Technology

[0002] With the rapid development of the economy and the continuous improvement of residents' living standards, outdoor and indoor sports enthusiasts are increasingly fond of using inflatable products such as inflatable beds, inflatable sofas, or inflatable swimming pools. In general, an air pump is used to inflate these products.

[0003] However, the air pumps in the existing technology have large air pressure losses and cannot provide good heat dissipation for the motor, causing the motor to continuously heat up during operation and affecting the service life of the motor.

[0004] In view of this, the present invention aims to provide an externally mounted electric pump, which, through its ingenious structural design, can not only greatly reduce air pressure loss, but also provide heat dissipation for the motor. Summary of the Invention

[0005] The purpose of this utility model is to provide an external energy storage pump that addresses the shortcomings of existing technologies. Through its ingenious structural design, it can not only greatly reduce air pressure loss but also provide heat dissipation for the motor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An externally mounted electric pump includes a housing, a top cover disposed on the top of the housing, a bottom plate disposed on the bottom of the housing, and a pump body disposed between the top cover and the bottom plate. The top cover is provided with an air inlet, the bottom plate is provided with an air outlet, and a flow channel communicating with the air inlet and the air outlet is formed on the side wall of the housing.

[0008] As an improvement of the externally mounted electric pump of this utility model, a top plate is provided on the outer shell, and air holes are provided on the top plate.

[0009] As an improvement of the present invention, the externally mounted electric pump includes a fan blade assembly, a motor, a PCBA board and a battery. The battery is connected to the PCBA board and the motor. The PCBA board is also connected to the motor. The fan blade assembly is connected to the output shaft of the motor. After assembly, the air vent is located below the fan blade assembly.

[0010] As an improvement of the externally mounted electric pump of this utility model, the fan blade assembly includes a central column, a plurality of blades extending outward from the central column, a lower connecting piece connected to a portion of the lower surface of the blades, and an upper connecting piece connected to a portion of the upper surface of the blades.

[0011] As an improvement of the externally mounted electric pump of this utility model, the blade is generally L-shaped, the upper connecting piece is annular, the lower connecting piece is circular, and the size of the lower connecting piece is smaller than the size of the small circle in the upper connecting piece.

[0012] As an improvement of the externally mounted electric pump of this utility model, the fan blade assembly is disposed between the top plate and the top cover, and the motor, the PCBA board and the battery are all disposed between the top plate and the bottom plate.

[0013] As an improvement of the externally mounted electric pump of this utility model, a recessed space is formed on the top plate, and a flange matching the recessed space is formed on the top cover. An accommodating space for accommodating the fan blade assembly is formed between the recessed space and the flange, and the air inlet communicates with the accommodating space.

[0014] As an improvement of the externally mounted electric pump of this utility model, the recessed space is formed with an outlet, the outlet is connected to the flow channel, the top of the flow channel is formed with a V-shaped angle that is connected to the outlet, and the top cover is formed with a wedge-shaped protrusion that matches the bottom of the V-shaped angle.

[0015] As an improvement of the externally mounted electric pump of this utility model, the flow channel is composed of a left inclined surface, a lower arc-shaped surface, a right inclined surface and an upper arc-shaped surface.

[0016] As an improvement to the externally mounted electric pump of this utility model, an LED light bead is installed inside the air outlet, and an air nozzle is detachably installed outside the air outlet. A switch is installed on the outer shell. With the air nozzle attached, it functions as a light; without the air nozzle, it functions as a flashlight.

[0017] Compared to existing technologies, this invention, through its ingenious structural design and unique flow channels on the side walls of the outer shell, can better guide airflow, thereby reducing air pressure loss and improving inflation efficiency. Furthermore, the uniquely structured fan assembly and the structure next to the top of the flow channels further reduce air pressure loss.

[0018] Meanwhile, by setting air vents on the top of the housing (after assembly, the air vents are located below the fan blade assembly), a small airflow passes through the air vents during use, which can dissipate heat from the motor, thereby extending the motor's service life. Attached Figure Description

[0019] Figure 1 is one of the three-dimensional structural schematic diagrams of this utility model.

[0020] Figure 2 is a second three-dimensional structural schematic diagram of this utility model.

[0021] Figure 3 is one of the exploded structural diagrams of this utility model.

[0022] Figure 4 is the second exploded structural diagram of this utility model.

[0023] Figure 5 is the third exploded structural diagram of this utility model.

[0024] Figure 6 is the fourth exploded structural diagram of this utility model.

[0025] Figure 7 is the fifth exploded structural diagram of this utility model.

[0026] Figure 8 is a schematic diagram of the outer shell structure in this utility model. Detailed Implementation

[0027] The technical solution of this utility model is illustrated below with specific embodiments, but the protection scope of this utility model is not limited thereto.

[0028] As shown in Figures 1-8, this utility model provides an externally mounted electric pump, including a housing 1, a top cover 2 disposed on the top of the housing 1, a bottom plate 3 disposed at the bottom of the housing 1, and a pump body 4 disposed between the top cover 2 and the bottom plate 3. The top cover 2 has an air inlet 21, and the bottom plate 3 has an air outlet 31. A flow channel 11 communicating with the air inlet 21 and the air outlet 31 is formed on the side wall of the housing 1. Through ingenious structural design, this utility model, by setting a unique flow channel 11 on the side wall of the housing 1, can better guide airflow, thereby reducing air pressure loss and improving inflation efficiency.

[0029] The outer casing 1 has a top plate 12 with an air vent 13. The pump body 4 includes a fan assembly 41, a motor 42, a PCBA board 43, and a battery 44. The battery 44 is connected to the PCBA board 43 and the motor 42, and the PCBA board 43 is also connected to the motor 42. The fan assembly 41 is connected to the output shaft of the motor 42. After assembly, the air vent 13 is located below the fan assembly 41. This invention, by providing an air vent 13 on the top of the outer casing 1, allows a small airflow to pass through the air vent 13 during use, which can dissipate heat from the motor and thus extend its service life.

[0030] The wind turbine assembly 41 includes a central column 411, a plurality of blades 412 extending outward from the central column 411, a lower connecting piece 413 connected to a portion of the lower surface of the blades 412, and an upper connecting piece 414 connected to a portion of the upper surface of the blades 412. The entire wind turbine assembly 41 is a stacked structure, and by setting the uniquely structured wind turbine assembly 41, air pressure loss can be further reduced.

[0031] The blade 412 is generally L-shaped and has a continuous arc shape. The upper connecting piece 414 is annular, and the lower connecting piece 413 is circular, with the size of the lower connecting piece 413 being smaller than the size of the small circle in the upper connecting piece 414. The bottom end of the central column 411 is connected to the lower connecting piece 43, and the top of the central column passes through the small circle in the upper connecting piece 414.

[0032] The fan blade assembly 41 is disposed between the top plate 12 and the top cover 2, while the motor 42, PCBA board 43, and battery 44 are disposed between the top plate 12 and the bottom plate 3. When the fan blade assembly 41 rotates, a small stream of air passes through the air hole 13 on the top plate 12 and reaches the space between the top plate 12 and the bottom plate 3, thereby dissipating heat from the motor 42.

[0033] A recessed space 121 is formed on the top plate 12, and a flange 22 matching the recessed space 121 is formed on the top cover 2. A receiving space for the fan blade assembly 41 is formed between the recessed space 121 and the flange 22, thereby preventing gas leakage and reducing air pressure loss. The air inlet 21 is connected to the receiving space.

[0034] The recessed space 121 forms an outlet 122, which communicates with the flow channel 11. The top of the flow channel 11 forms a V-shaped angle 123 that communicates with the outlet 122. The top cover 2 forms a wedge-shaped protrusion 23 that matches the bottom of the V-shaped angle 123. The V-shaped angle 123 and the wedge-shaped protrusion 23 form a "double pressure angle" structure, which can reduce air pressure loss.

[0035] The flow channel 11 is composed of a left inclined surface 111, a lower arc-shaped surface 112, a right inclined surface 113, and an upper arc-shaped surface 114. Among them, the area of ​​the left inclined surface 111 is larger than that of the right inclined surface 113, and the curvature of the lower arc-shaped surface 112 is greater than that of the upper arc-shaped surface 114.

[0036] When in use, the power is turned on, and the motor 42 drives the fan assembly 41 to rotate. Air enters the housing space of the fan assembly 41 from the air inlet 21, then enters the flow channel 11 from the outlet 122, and finally flows into the inflatable product from the air outlet 31, completing the inflation. The air pressure loss is very small throughout the process, and the inflation speed is fast.

[0037] As the fan blade assembly 41 rotates, air enters the space between the top plate 12 and the bottom plate 3 through the air vent 13, thereby dissipating heat from the motor 42 and improving its service life.

[0038] The air outlet 31 houses an LED bead 5 and an LED bead mounting assembly 51. An air nozzle 6 is detachably mounted on the outside of the air outlet 31. A switch 7 is mounted on the outer casing 1. Both the LED bead 5 and the switch 7 are connected to the PCBA board 43. With the air nozzle 6 attached, it functions as a lamp; removing the air nozzle 6 and pressing the switch 7 activates its flashlight function, thus giving this invention multiple functions.

[0039] Preferably, a strap can be threaded through the small hole on the edge of the top cover 2 to make the present invention more portable.

[0040] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and modifications and changes to the thickness and material of this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An off-board pump for a battery, the off-board pump comprising: The device includes an outer casing, a top cover disposed on the top of the outer casing, a bottom plate disposed on the bottom of the outer casing, and a pump body disposed between the top cover and the bottom plate. The top cover is provided with an air inlet, the bottom plate is provided with an air outlet, and a flow channel communicating with the air inlet and the air outlet is formed on the side wall of the outer casing.

2. The external accumulator pump of claim 1, wherein: The outer shell is provided with a top plate, and the top plate is provided with air holes.

3. The external accumulator pump of claim 1, wherein: The pump body includes a fan blade assembly, a motor, a PCBA board, and a battery. The battery is connected to the PCBA board and the motor. The PCBA board is also connected to the motor. The fan blade assembly is connected to the output shaft of the motor. After assembly, the air vent is located below the fan blade assembly.

4. The external accumulator pump of claim 3, wherein: The fan blade assembly includes a central column, a plurality of blades extending outward from the central column, a lower connecting piece connected to a portion of the lower surface of the blades, and an upper connecting piece connected to a portion of the upper surface of the blades.

5. The external accumulator pump of claim 4, wherein: The blade is generally L-shaped, the upper connecting piece is annular, the lower connecting piece is circular, and the size of the lower connecting piece is smaller than the size of the small circle in the upper connecting piece.

6. The external battery pump of claim 3, wherein: The fan blade assembly is disposed between the top plate and the top cover, and the motor, the PCBA board and the battery are all disposed between the top plate and the bottom plate.

7. The external battery-powered pump of claim 3, wherein: A recessed space is formed on the top plate, and a flange matching the recessed space is formed on the top cover. An accommodating space for accommodating the fan blade assembly is formed between the recessed space and the flange, and the air inlet communicates with the accommodating space.

8. The externally mounted electric pump according to claim 7, characterized in that: The recessed space has an outlet that communicates with the flow channel. The top of the flow channel has a V-shaped angle that communicates with the outlet. The top cover has a wedge-shaped protrusion that matches the bottom of the V-shaped angle.

9. The externally mounted electric pump according to claim 1, characterized in that: The flow channel consists of a left inclined surface, a lower arc-shaped surface, a right inclined surface, and an upper arc-shaped surface.

10. The external accumulator pump of claim 1, wherein: The air outlet is equipped with an LED light bead inside, and an air nozzle is detachably installed on the outside of the air outlet. A switch is installed on the outer casing.

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