Inflation and suction pump with built-in lithium battery

Abstract

An inflation and suction pump with a built-in lithium battery, the pump comprising an air pump housing (1), with a brushless electric motor module (2), a one-way valve (3), a battery module (4) and a valve jacking device (5) being provided inside the air pump housing (1), and the air pump housing (1) being provided with a first air hole (11) and a second air hole (12), wherein the brushless electric motor module (2) is arranged in an air duct; the battery module (4) is connected to the brushless electric motor module (2); during inflation, the brushless electric motor module (2) rotates forward, such that air enters from the first air hole (11) and is discharged from the second air hole (12); and during exhaust, the brushless electric motor module (2) rotates backward, such that air enters from the second air hole (12) and is discharged from the first air hole (11). The inflation and suction pump can achieve the functions of inflation and exhaust, without needing to switch the air duct.

Description

Built-in lithium battery charging and suction pump Technical Field

[0001] The present invention relates to the field of air pumps, in particular to an air charging and suction pump with a built-in lithium battery. Background Art

[0002] An air pump is a device that removes or adds air from an enclosed space. Air pumps are mainly divided into electric air pumps, manual air pumps, and foot-operated air pumps. Electric air pumps are electrically powered air pumps that continuously compress air to generate air pressure.

[0003] Existing inflatable products, such as inflatable tents and mattresses, require built-in air pumps for rapid inflation and deflation. However, because the pump requires a one-way valve to prevent air leakage, existing pumps with both inflation and deflation functions typically require separate air ducts. These ducts are switched during inflation and deflation to open the one-way valve, achieving both functions. However, this approach complicates the pump's internal structure and hinders product miniaturization.

[0004] Summary of the Invention

[0005] In view of this, an object of the present invention is to provide a built-in lithium battery charging and suction pump that can realize the functions of inflation and exhaust without switching the air duct.

[0006] The built-in lithium battery charging and suction pump of the present invention comprises an air pump housing, wherein a brushless motor module, a one-way valve, a battery module and a valve opening device are arranged inside the air pump housing;

[0007] The air pump housing is provided with a first air hole and a second air hole, the first air hole and the second air hole are connected through an air duct, and the one-way valve is provided at the second air hole to limit air intake of the second air hole;

[0008] The brushless motor module is arranged in the air duct, and the fan blades are integrated inside the brushless motor module; the battery module is connected to the brushless motor module and the valve push-opening device to supply power to the brushless motor module and the valve push-opening device;

[0009] During inflation, the brushless motor module rotates forward, and the valve opening device opens the valve core of the one-way valve to increase the gap of the second air hole, and drives air to enter from the first air hole and be discharged from the one-way valve in the second air hole;

[0010] During exhaust, the brushless motor module is reversed, and the valve opening device opens the valve core of the one-way valve to drive air to enter from the second air hole and be discharged from the first air hole.

[0011] In one embodiment of the present application, a control circuit board for controlling the brushless motor module and the valve opening device is further included;

[0012] The control circuit board is connected to the brushless motor module, the battery module and the valve opening device.

[0013] In one embodiment of the present application, the valve opening device includes a reduction motor, a reduction motor seat, a gear, a lifting rack and a return spring;

[0014] The reduction motor is arranged on the reduction motor seat, the reduction motor seat is arranged inside the air pump housing, and the gear is arranged on the rotating shaft of the reduction motor;

[0015] The reduction motor seat is provided with a slide groove, the top-opening rack is slidably connected to the slide groove, and the top-opening rack is meshed with the gear;

[0016] One end of the return spring is connected to the reduction motor seat, and the other end of the return spring is connected to the top-open rack to reset the top-open rack;

[0017] The end portion of the push-open rack is used to push open the valve core of the one-way valve.

[0018] In one embodiment of the present application, a sealing plate is provided at the end of the valve core of the one-way valve, and the sealing plate is used to seal the outer side of the second air hole.

[0019] In one embodiment of the present application, the second air hole is provided with a valve cover for protecting the one-way valve.

[0020] In one embodiment of the present application, a key switch for outputting a control signal is further provided on the air pump housing, and the key switch is connected to the control circuit board.

[0021] In one embodiment of the present application, the control circuit board is further provided with a power display light and an LED lighting light for displaying the power level of the battery module.

[0022] The beneficial effects of the present invention are as follows: the built-in lithium battery air pump of the present invention comprises an air pump housing, wherein a brushless motor module, a one-way valve, a battery module and a valve opening device are arranged inside the air pump housing; wherein the air pump housing is provided with a first air hole and a second air hole, the first air hole and the second air hole are connected by an air duct, and the one-way valve is arranged at the second air hole to limit the air intake of the second air hole; the brushless motor module is arranged in the air duct, and the fan blade is integrated inside the brushless motor module; the battery module is connected to the brushless motor module to power the brushless motor module; when inflating, the brushless motor module rotates forward to drive air to enter from the first air hole and be discharged after pushing the one-way valve located in the second air hole; when exhausting, the brushless motor module reverses, and the valve opening device opens the valve core of the one-way valve to drive air to enter from the second air hole and be discharged from the first air hole. By setting a valve opening device, the present application directly injects external gas into the interior of the inflatable product during inflation, and uses the one-way valve to prevent the inflatable product from leaking. During exhaust, the valve opening device pushes open the valve core of the one-way valve, allowing gas to be discharged from the second air hole. At the same time, the brushless motor module rotates in the opposite direction to extract air from the inflatable product. This application can achieve the functions of inflation and exhaust without switching the air duct, which is conducive to the miniaturization of the air pump design. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0024] FIG1 is an external structural diagram of a built-in lithium battery charging and suction pump in one embodiment of the present application;

[0025] FIG2 is a diagram showing the internal structure of a built-in lithium battery charging and suction pump in one embodiment of the present application;

[0026] FIG3 is a schematic structural diagram of a control circuit board in one embodiment of the present application;

[0027] FIG4 is a cross-sectional view of a built-in lithium battery charging and suction pump in one embodiment of the present application;

[0028] FIG5 is an external structural diagram of a valve opening device in one embodiment of the present application;

[0029] FIG6 is a diagram showing the internal structure of a valve opening device in one embodiment of the present application;

[0030] FIG7 is a gas circuit diagram of a built-in lithium battery charging and suction pump during inflation in one embodiment of the present application;

[0031] FIG8 is a gas path diagram of a built-in lithium battery charging and suction pump during exhaust in one embodiment of the present application;

[0032] The accompanying drawings are marked as follows: 1-air pump housing, 11-first air hole, 12-second air hole, 121-valve cover, 13-button switch; 2-brushless motor module; 3-one-way valve, 31-sealing plate; 4-battery module; 5-valve opening device, 51-speed motor, 52-reduction motor seat, 53-gear, 54-opening rack, 55-reset spring; 6-control circuit board, 61-power display light, 62-LED lighting lamp. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] As shown in Figures 1 to 8: The built-in lithium battery charging and suction pump of this embodiment includes an air pump housing 1, inside which a brushless motor module 2, a one-way valve 3, a battery module 4 and a valve opening device 5 are provided;

[0038] The air pump housing 1 is provided with a first air hole 11 and a second air hole 12, the first air hole 11 and the second air hole 12 are connected by an air duct, and the one-way valve 3 is provided at the second air hole 12 to limit the air intake of the second air hole 12;

[0039] The end of the valve core of the one-way valve 3 is provided with a sealing plate 31, which is used to seal the outer side of the second air hole 12. Therefore, the valve core of the one-way valve 3 can only extend outward, forming an air hole. This prevents air leakage after the inflatable product is inflated.

[0040] The brushless motor module 2 is disposed within the air duct, and has integrated fan blades therein. The battery module 4 is connected to the brushless motor module 2 and the valve push-opening device 5 to provide power to the brushless motor module 2 and the valve push-opening device 5. The brushless motor module 2 in this embodiment includes a brushless motor and fan blades integrated therein. The brushless motor drives the fan blades to rotate, thereby driving air flow in the air duct.

[0041] In addition, the built-in lithium battery charging and suction pump in the present application also includes a control circuit board 6 for controlling the brushless motor module 2 and the valve push-opening device 5; the control circuit board 6 is connected to the brushless motor module 2, the battery module 4, and the valve push-opening device 5. The air pump housing 1 is also provided with a key switch 13 for outputting a control signal, and the key switch 13 is connected to the control circuit board 6.

[0042] A plurality of key switches 13 are provided on the top of the air pump housing 1, and the user can press them to input corresponding instructions, thereby controlling the working state of the brushless motor module 2. For example, the working state may include on, off, forward, reverse, etc.

[0043] The control circuit board 6 is also provided with a power indicator light 61 and an LED lighting lamp 62 for displaying the power of the battery module 4. The power indicator light 61 can indicate the remaining power of the battery module 4, and the LED lighting lamp 62 is for the convenience of the user in dimly lit places.

[0044] The valve opening device 5 includes a reduction motor 51, a reduction motor seat 52, a gear 53, a push-open rack 54 and a return spring 55; the reduction motor 51 is arranged on the reduction motor seat 52, the reduction motor seat 52 is arranged inside the air pump housing 1, and the gear 53 is arranged on the rotating shaft of the reduction motor 51;

[0045] The reduction motor seat 52 is provided with a slide groove, the top rack 54 is slidably connected to the slide groove, and the top rack 54 is meshed with the gear 53;

[0046] One end of the return spring 55 is connected to the reduction motor seat 52, and the other end of the return spring 55 is connected to the top-open rack 54 to reset the top-open rack 54;

[0047] The end of the push-open rack 54 is used to push open the valve core of the one-way valve 3 .

[0048] Specifically, the speed motor base 52 in this embodiment further includes a protective shell for protecting the gear 53 .

[0049] In this embodiment, when the reduction motor 51 rotates in the forward direction, the drive gear 53 rotates, thereby driving the push-open rack 54 toward the valve core of the one-way valve 3. This pushes open the valve core of the one-way valve 3. When the reduction motor 51 is running, under the action of the return spring 55, the entire rack does not need to be adjusted for stroke, and the push-open rack 54 is limited by the return spring 55. Regardless of how the reduction motor 51 rotates, the push-open rack 54 will subsequently reset to the set position. Therefore, the reduction motor 51 in this application does not need to be set like a stepper motor.

[0050] When the built-in lithium battery charging and suction pump in the present application is inflating, the brushless motor module 2 rotates forward, and the valve opening device 5 opens the valve core of the one-way valve 3 to increase the gap of the second air hole 12, thereby increasing the air flow rate and driving air to enter from the first air hole 11 and be discharged from the one-way valve 3 in the second air hole 12;

[0051] When the built-in lithium battery charging and suction pump is exhausting, the brushless motor module 2 reverses, and the valve opening device 5 opens the valve core of the one-way valve to drive air into from the second air hole 12 and out from the first air hole 11.

[0052] In one embodiment of the present application, the second air hole 12 is provided with a valve cover 121 for protecting the one-way valve 3, thereby protecting the second air hole 12 and the one-way valve 3 in the second air hole.

[0053] The present invention's built-in lithium battery air pump utilizes a valve-opening device to directly pump external air into the inflatable product during inflation, while utilizing a one-way valve to prevent leakage. During exhaust, the valve-opening device pushes open the valve core of the one-way valve, allowing gas to be discharged through the second air hole. Simultaneously, the brushless motor module rotates in the opposite direction to extract air from the inflatable product. This application achieves both inflation and exhaust functions without switching air ducts, facilitating a miniaturized air pump design.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Built-in lithium battery charging and suction pump, characterized by: It comprises an air pump housing (1), wherein a brushless motor module (2), a one-way valve (3), a battery module (4) and a valve opening device (5) are provided inside the air pump housing (1); The air pump housing (1) is provided with a first air hole (11) and a second air hole (12), the first air hole (11) and the second air hole (12) are connected via an air duct, and the one-way valve (3) is provided at the second air hole (12) to limit air intake through the second air hole (12); The brushless motor module (2) is arranged in an air duct, and a fan blade is integrated inside the brushless motor module (2); the battery module (4) is connected to the brushless motor module (2) and the valve push-opening device (5) to supply power to the brushless motor module (2) and the valve push-opening device (5); During inflation, the brushless motor module (2) rotates forward, and the valve opening device (5) opens the valve core of the one-way valve (3) to increase the gap of the second air hole (12), and drives air to enter from the first air hole (11) and be discharged from the one-way valve (3) in the second air hole (12); During exhaust, the brushless motor module (2) is reversed, and the valve opening device (5) opens the valve core of the one-way valve (3) to drive air to enter from the second air hole (12) and be discharged from the first air hole (11).

2. The built-in lithium battery charging and suction pump according to claim 1, characterized in that: It also includes a control circuit board (6) for controlling the brushless motor module (2) and the valve opening device (5); The control circuit board (6) is connected to the brushless motor module (2), the battery module (4) and the valve opening device (5).

3. The built-in lithium battery charging and suction pump according to claim 1, characterized in that: The valve opening device (5) comprises a reduction motor (51), a reduction motor seat (52), a gear (53), a valve opening rack (54) and a return spring (55); The reduction motor (51) is arranged on the reduction motor seat (52), the reduction motor seat (52) is arranged inside the air pump housing (1), and the gear (53) is arranged on the rotating shaft of the reduction motor (51); The reduction motor seat (52) is provided with a slide groove, the top-opening rack (54) is slidably connected to the slide groove, and the top-opening rack (54) is meshed with the gear (53); One end of the reset spring (55) is connected to the reduction motor seat (52), and the other end of the reset spring (55) is connected to the top-opening rack (54) to reset the top-opening rack (54); The end of the push-open rack (54) is used to push open the valve core of the one-way valve (3).

4. The built-in lithium battery charging and suction pump according to claim 1, characterized in that: A sealing plate (31) is provided at the end of the valve core of the one-way valve (3), and the sealing plate (31) is used to seal the outer side of the second air hole (12).

5. The built-in lithium battery charging and suction pump according to claim 1, characterized in that: The second air hole (12) is provided with a valve cover (121) for protecting the one-way valve (3).

6. The built-in lithium battery charging and suction pump according to claim 2, characterized in that: The air pump housing (1) is also provided with a key switch (13) for outputting a control signal, and the key switch (13) is connected to the control circuit board (6).

7. The built-in lithium battery charging and suction pump according to claim 2, characterized in that: The control circuit board (6) is also provided with a power display light (61) and an LED lighting light (62) for displaying the power level of the battery module (4).

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