Inflator and control method for an inflator

Abstract

The application discloses an inflator and a control method thereof, wherein the inflator comprises a shell, an air suction port is arranged on the shell, a heat dissipation air duct is formed in the shell, a cylinder is arranged in the shell, an air suction port of the cylinder is communicated with the air suction port, a heat dissipation fan is arranged in the heat dissipation air duct, an air inlet end of the heat dissipation air duct is communicated with the air suction port, an electromagnetic valve is arranged for controlling the communication and separation of the air inlet end of the heat dissipation air duct and the air suction port, the electromagnetic valve has a first state for controlling the communication of the air inlet end of the heat dissipation air duct and the air suction port, and the electromagnetic valve has a second state for controlling the separation of the air inlet end of the heat dissipation air duct and the air suction port, a pressure sensor is arranged for detecting the air suction pressure of the cylinder, and a controller is arranged for receiving the signal of the pressure sensor and controlling the electromagnetic valve to switch between the first state and the second state. The inflator and the control method thereof effectively solve the problems that the inflator in the prior art has no air suction function and is not intelligent enough.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inflating equipment, in particular to an inflating pump and a control method of the inflating pump. BACKGROUND

[0002] In the prior art, the inflating pump comprises a motor, a transmission assembly, a piston rod, a one-way valve and a cylinder, and the principle is that the motor drives the transmission assembly to make the piston rod reciprocate in the cylinder to realize the inflating function; the piston rod is provided with a spring sheet on one side in the cylinder, when deflating, the external gas pushes away the spring sheet on the other side of the piston rod to enter the cylinder, when inflating, the spring sheet of the piston rod is closed, the gas in the cylinder is extruded and pushes away the one-way valve at the end of the cylinder to enter the inflating article.

[0003] At present, most of the inflating pumps on the market only use the inflating function of the inflating pump to inflate the article, but the negative pressure generated by the other end of the inflating process is ignored, and many young people love outdoor camping at present, so they will inevitably use more inflating articles, such as swimming rings, rubber boats, inflatable tents and air cushion beds, etc., when these articles are used up, they need to be manually deflated and folded for storage, but the gas cannot be completely emptied in the state of no pressure, resulting in inconvenience in storage. In the prior art, the inflating pump has a single function, only has the inflating function, does not have the deflating function, and cannot meet the needs of the user. Moreover, the inflating pump cannot adjust the suction pressure according to the state of the internal gas of the article, and is not intelligent enough.

[0004] In summary, the inflating pump in the prior art does not have the deflating function and is not intelligent enough. SUMMARY

[0005] The present application provides an inflating pump and a control method of the inflating pump to solve the problem that the inflating pump in the prior art does not have the deflating function and is not intelligent enough.

[0006] To achieve the above-mentioned purpose, the present application provides an inflating pump, comprising: a shell, the shell is provided with a deflating port; a heat dissipation air duct is formed in the shell; a cylinder is arranged in the shell, and the suction port of the cylinder is communicated with the deflating port; a heat dissipation fan is arranged in the heat dissipation air duct; the air inlet end of the heat dissipation air duct is communicated with the deflating port; an electromagnetic valve is installed at the air inlet end of the heat dissipation air duct, and the electromagnetic valve is used to control the communication and separation of the air inlet end of the heat dissipation air duct and the deflating port; the electromagnetic valve has a first state for controlling the communication of the air inlet end of the heat dissipation air duct and the deflating port, and has a second state for controlling the separation of the air inlet end of the heat dissipation air duct and the deflating port; a pressure sensor is arranged in the shell, and the pressure sensor is used to detect the suction pressure of the cylinder; a controller is electrically connected with the electromagnetic valve and the pressure sensor, and the controller is used to receive the signal of the pressure sensor and control the electromagnetic valve to switch between the first state and the second state.

[0007] Further, a transition cavity is formed inside the shell, and the transition cavity is in communication with the air outlet; the transition cavity is in communication with the air inlet end of the heat dissipation air duct through a vent hole, and the electromagnetic valve is arranged at the vent hole, and the electromagnetic valve controls the communication and isolation between the air inlet end of the heat dissipation air duct and the air outlet by opening or closing the vent hole.

[0008] Further, an air suction cavity is formed inside the shell, and the air suction cavity is in communication with the transition cavity; the air inlet of the air cylinder is located in the air suction cavity.

[0009] Further, the air cylinder sealing member is arranged inside the shell, and the air cylinder sealing member forms the air suction cavity with the shell plate of the shell, and the pressure sensor is arranged in the air suction cavity.

[0010] Further, the air cylinder is at least partially arranged in the heat dissipation air duct.

[0011] Further, the air outlet of the air cylinder is in communication with the air inlet of the shell.

[0012] Further, the air outlet end of the heat dissipation air duct is arranged on the shell, and the heat dissipation fan drives the airflow to flow from the air inlet end to the air outlet end of the heat dissipation air duct.

[0013] According to another aspect of the present application, a control method of an air pump is provided, the air pump being the air pump described above, and the control method comprising: obtaining the air suction pressure of the air cylinder; determining whether the air suction pressure is less than a first preset value; if yes, controlling the electromagnetic valve to switch to a first state; and if no, controlling the electromagnetic valve to switch to a second state.

[0014] Further, the first preset value is 50 kPa.

[0015] Further, after the step of obtaining the air suction pressure of the air cylinder, the method further comprises the following steps: if the air suction pressure is greater than a second preset value, controlling the air pump to be closed.

[0016] Further, the second preset value is 10 MPa.

[0017] Further, after the step of obtaining the air suction pressure of the air cylinder, the method further comprises the following steps: obtaining a rising speed value of the air suction pressure within a preset time; determining whether the rising speed value is greater than a preset speed value; if yes, controlling the air pump to be closed.

[0018] Further, the preset speed value is 1 MPa / s.

[0019] According to another aspect of the present application, a computer readable storage medium is provided, and a computer program is stored on the computer readable storage medium, and the program is executed by a processor to implement the method described above.

[0020] When the air pump inflates, air is drawn into the cylinder through the suction port and discharged from the cylinder's exhaust port, then enters the item to be inflated through an external air pipe. Simultaneously, a cooling fan draws air in through the suction port, dissipating it through a cooling duct. When the air pump draws air in, the suction port is connected to the item to be inflated via an air pipe. The suction force of the cooling fan and / or the cylinder draws air in through the suction port, thus achieving the suction function. This invention's air pump utilizes the cylinder's self-priming capability and the negative pressure suction created by the cooling fan, achieving both inflation and suction functions in one pump. Furthermore, the pressure sensor in this invention detects the cylinder's suction pressure to control a solenoid valve, switching the pump's suction pressure. When the pump is drawing in air, if the detected cylinder suction pressure is low, the solenoid valve switches to a first state, utilizing the cooling fan for suction. The main source of suction is the rotation of the cooling fan; at this point, the total suction volume is large, and the suction pressure is low. After the air pump has been drawing air for a period of time, if the suction pressure of the cylinder is high, it indicates that a significant amount of air has been removed from the item being evacuated, increasing its internal pressure. This triggers the solenoid valve to switch to the second state, where the cylinder performs evacuation. The suction force primarily comes from the cylinder's self-priming force. In this state, the total air volume is smaller, but the suction pressure is higher, making it suitable for items requiring near-vacuum evacuation. This allows the item to be evacuated to near-vacuum, achieving optimal evacuation results. The entire evacuation process is highly intelligent, reducing air pump consumption, achieving excellent evacuation performance, and intelligently completing the evacuation task. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the air pump according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the airflow direction of an air pump according to an embodiment of the present invention;

[0023] Figure 3 This is another schematic diagram of the airflow direction of the air pump according to an embodiment of the present invention;

[0024] Figure 4 This is a flowchart illustrating the control method of the air pump according to an embodiment of the present invention. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0026] See Figures 1 to 3As shown, according to the embodiment of the present application, an inflator pump is provided, which comprises a shell 10, a cylinder 20, a heat dissipation fan 30, a solenoid valve 40, a pressure sensor 50 and a controller, wherein the shell 10 is provided with an air suction port 11; the shell 10 is internally formed with a heat dissipation air duct 12; the cylinder 20 is arranged inside the shell 10, and an air suction port 21 of the cylinder 20 is communicated with the air suction port 11; the heat dissipation fan 30 is arranged inside the heat dissipation air duct 12; an air inlet end 12a of the heat dissipation air duct 12 is communicated with the air suction port 11; the solenoid valve 40 is installed at the air inlet end 12a of the heat dissipation air duct 12, and the solenoid valve 40 is used to control the communication and separation of the air inlet end 12a of the heat dissipation air duct 12 and the air suction port 11; the solenoid valve 40 has a first state for controlling the communication of the air inlet end 12a of the heat dissipation air duct 12 and the air suction port 11, and the solenoid valve 40 has a second state for controlling the separation of the air inlet end 12a of the heat dissipation air duct 12 and the air suction port 11; the pressure sensor 50 is arranged inside the shell 10, and the pressure sensor 50 is used to detect the air suction pressure of the cylinder 20; the controller is electrically connected with the solenoid valve 40 and the pressure sensor 50, and the controller is used to receive the signal of the pressure sensor 50 and control the solenoid valve 40 to switch between the first state and the second state.

[0027] When the inflator pump is used for inflating, air is sucked from the air suction port into the cylinder, discharged from the air outlet of the cylinder and enters the object to be inflated through the external air pipe. At the same time, the heat dissipation fan sucks air from the air suction port and passes through the heat dissipation air duct to achieve the purpose of heat dissipation. When the inflator pump is used for sucking air, the air suction port is connected with the object to be sucked through the air pipe, and air is sucked from the air suction port by the suction force of the heat dissipation fan and / or the cylinder, thereby realizing the air suction function. The inflator pump of the present application utilizes the self-suction capacity of the cylinder and the suction force of the heat dissipation fan to form negative pressure, realizes the air suction function on the premise of realizing the inflating function, and has dual functions. Moreover, the pressure sensor of the inflator pump of the present application detects the air suction pressure of the cylinder to control the solenoid valve and switch the air suction pressure of the inflator pump. When the inflator pump is used for sucking air, when the detected air suction pressure of the cylinder is small, the solenoid valve is switched to the first state, and the heat dissipation fan is used for air suction, and the main source of the suction force is the rotation of the heat dissipation fan, at this time, the total amount of air suction is large, and the air suction pressure is small. After the inflator pump is used for sucking air for a period of time, when the detected air suction pressure of the cylinder is large, it indicates that a lot of air inside the object to be sucked has been sucked away, so that the internal pressure of the object is large, and then the solenoid valve is switched to the second state, and the cylinder is used for air suction, and the main source of the suction force is the self-suction force of the cylinder, at this time, the total amount of air suction is small, and the air suction pressure is large, which is suitable for objects close to vacuum, thereby enabling the object to be sucked to be close to vacuum, and the air suction effect reaches the optimal effect. The whole air suction process is very intelligent, which not only reduces the consumption of the inflator pump and achieves the optimal air suction effect, but also intelligently completes the air suction work.

[0028] It should be noted that according to the introduction of the above-mentioned air suction function, the air pump of the application has two air suction modes: a conventional air suction mode and a high-pressure air suction mode; the controller controls the electromagnetic valve according to the air suction pressure detected by the pressure sensor, and then switches the above-mentioned two air suction modes. When the conventional air suction mode is selected, the electromagnetic valve 40 switches to the first state, and the air pump is started, at this time, most of the air flow flows to the position shown in Figure 2 (see the arrow direction of the air flow), and a small part of the air flow flows to the position shown in Figure 3 (see the arrow direction of the air flow). At this time, the main source of suction is the rotation of the cooling fan. The conventional air suction mode is generally used in the case of large total air suction and small air suction pressure, and is generally operated at the beginning of air suction. When the high-pressure air suction mode is selected, the electromagnetic valve 40 switches to the second state, and the air pump is started, and the air flow flows to the position shown in Figure 3 . At this time, the main source of suction is the self-suction of the air cylinder, and the maximum air suction pressure can reach 10 MPa, far exceeding the pressure of the vacuum pump on the market. The high-pressure air suction mode is generally used in the case of small total air suction and large air suction pressure, and is generally operated after a period of air suction and when the air suction pressure is large.

[0029] A transition cavity 13 is formed in the shell 10, and the transition cavity 13 is in communication with the air suction port 11; the transition cavity 13 is in communication with the air inlet end 12a of the cooling air duct 12 through the ventilation hole 14, and the electromagnetic valve 40 is arranged at the ventilation hole 14. The electromagnetic valve 40 controls the communication and isolation between the air inlet end 12a of the cooling air duct 12 and the air suction port 11 by opening or closing the ventilation hole 14. The transition cavity 13 has the following functions: firstly, it cooperates with the electromagnetic valve 40 to control the communication and isolation between the air inlet end 12a of the cooling air duct 12 and the air suction port 11; secondly, it buffers the entering air to prevent uneven distribution of air due to large negative pressure on one side. The transition cavity 13 can achieve one object with multiple uses, which has unexpected technical effects.

[0030] Preferably, an air suction cavity 15 is formed in the shell 10, and the air suction cavity 15 is in communication with the transition cavity 13; the air suction port 21 of the air cylinder 20 is located in the air suction cavity 15. The air suction cavity 15 ensures that the air suction pressure of the air cylinder 20 is not affected. The air pump further comprises a driving member, a transmission assembly and a piston rod. The transmission assembly is drivingly connected with the transmission assembly, the transmission assembly is drivingly connected with the piston rod, and the piston rod is arranged in the air cylinder 20. The driving member drives the transmission assembly to rotate to drive the piston to reciprocate in the air cylinder 20. Preferably, the transmission assembly and the piston are located in the air suction cavity 15. This structure not only makes the structure of the air pump more reasonable and the size smaller, but also prevents air from leaking from the positions of the transmission assembly and the piston rod, and has better air tightness.

[0031] In order to further ensure the air tightness of the air suction cavity, in the embodiment, the air suction cavity 15 is provided with a sealing ring 16. Figure 2 and Figure 3As shown, the inflator pump further comprises a cylinder sealing piece 60, which is arranged inside the shell 10, and forms an air suction cavity 15 between the cylinder sealing piece 60 and the shell plate of the shell 10, and the pressure sensor 50 is arranged in the air suction cavity 15. The structure of the cylinder sealing piece 60 is matched with the cylinder 20, and at the same time, the structure of the cylinder sealing piece 60 is matched with the shell plate of the shell, so as to achieve the sealing effect.

[0032] In order to improve the heat dissipation effect, in the embodiment, the cylinder 20 is at least partially arranged in the heat dissipation air duct 12. The air outlet end 12b of the heat dissipation air duct 12 is arranged on the shell 10, and the heat dissipation fan 30 drives the airflow to flow from the air inlet end 12a to the air outlet end 12b of the heat dissipation air duct 12. The heat dissipation air duct 12 carries out the heat generated by the working of the cylinder 20 out of the shell, so as to achieve the heat dissipation purpose.

[0033] The shell 10 is provided with an inflating port, and the exhaust port 22 of the cylinder 20 is communicated with the inflating port. The inflating port is a structure for inflating function, and the external air pipe enters the object to be inflated. The specific structure of the battery and the cylinder in the inflator pump all belong to the prior art, and will not be described here.

[0034] The air outlet end 12b of the heat dissipation air duct 12 is arranged on the shell 10, and the heat dissipation fan 30 drives the airflow to flow from the air inlet end 12a to the air outlet end 12b of the heat dissipation air duct 12. The heat dissipation air duct 12 carries out the heat generated by the working of the cylinder 20 out of the shell, so as to achieve the heat dissipation purpose.

[0035] Referring to Figure 4 As shown, according to the embodiment of the present application, a control method of an inflator pump is provided, the inflator pump is the inflator pump of the above-mentioned embodiment, and the control method comprises the following steps:

[0036] Step S10: acquiring the air suction pressure of the cylinder.

[0037] Step S20: judging whether the air suction pressure is less than a first preset value.

[0038] If yes, step S31 is executed: controlling the electromagnetic valve to switch to the first state.

[0039] If no, step S32 is executed: controlling the electromagnetic valve to switch to the second state.

[0040] The electromagnetic valve is controlled to switch the suction pressure of the air pump according to the suction pressure of the cylinder. When the suction pressure of the cylinder is determined to be less than a first predetermined value during the suction of the air pump, it indicates that there is a lot of air in the object to be sucked, so the electromagnetic valve is controlled to switch to the first state to perform suction by the cooling fan, and the suction force is mainly derived from the rotation of the cooling fan, at this time, the total suction amount is large and the suction pressure is small. When the suction pressure of the cylinder is determined to be greater than the first predetermined value, it indicates that a lot of air in the object to be sucked has been sucked, so that the pressure in the object is increased, and the electromagnetic valve is controlled to switch to the second state to perform suction by the cylinder, and the suction force is mainly derived from the suction force of the cylinder, at this time, the total suction amount is small and the suction pressure is large, which is suitable for the object close to vacuum, so that the object can be sucked to close to vacuum, and the suction effect reaches the optimal effect. The whole suction process is very intelligent, which can not only reduce the consumption of the air pump and achieve high-quality suction effect, but also intelligently complete the suction work.

[0041] Preferably, the first predetermined value is 50 kPa. The value of 50 kPa is set by the air pump according to the volume of the air pump and the maximum suction pressure of the cooling fan. The maximum suction pressure formed by the rotation of the cooling fan can only reach 50 kPa, so when the suction pressure reaches 50 kPa, the rotation of the cooling fan cannot suck air any more, and it is necessary to replace it to the high-pressure suction mode to continue to suck air, that is, to operate the cylinder to suck air, and the maximum suction pressure of the cylinder can reach 10 MPa.

[0042] Preferably, after the step of obtaining the suction pressure of the cylinder, the method further comprises the following steps: if the suction pressure is greater than a second predetermined value, controlling the air pump to be closed.

[0043] When the object to be sucked is hard, it produces less deformation during the suction process, and the pressure change is uniform, so the second predetermined value is set. If the suction pressure is greater than the second predetermined value, it indicates that the vacuum has been completed, so the air pump is closed. Not only can the suction function be intelligently completed, but also the automatic operation and start can be prevented due to the high suction pressure, and the air pump can be protected.

[0044] In this embodiment, the second predetermined value is 10 MPa. The value of 10 MPa can not only determine the degree of vacuum, but also protect the cylinder of the air pump from damage due to overloading.

[0045] Preferably, after the step of obtaining the suction pressure of the cylinder, the method further comprises the following steps:

[0046] Obtaining the rising speed value of the suction pressure within a predetermined time;

[0047] Determining whether the rising speed value is greater than a predetermined speed value;

[0048] If yes, the air pump is controlled to be closed.

[0049] When the object being pumped is soft (vacuum bag), it will be greatly deformed during the pumping process. When the internal air is pumped out, the pressure will rise sharply in a short time because the object cannot continue to deform. Therefore, a preset speed value is set. If the rising speed value is greater than the preset speed value, it is considered that the pumping is completed at this time, and the air pump is closed. This can prevent the object from being broken due to the high suction pressure, and can also protect the air pump.

[0050] It should be noted that this step of obtaining the rising speed value of the suction pressure in a predetermined time can be performed after step S10 or can be performed synchronously with step S10. This step of obtaining the rising speed value of the suction pressure in a predetermined time can not only determine the state of the object being pumped, but also prevent the air pump from being damaged due to continuous pumping when the air pump encounters an obstacle or blockage.

[0051] Preferably, the preset speed value is 1 MPa / s. The preset speed value can be set according to the volume of the air pump and the power of the cylinder.

[0052] According to an embodiment of the present application, a computer readable storage medium is provided, and a computer program is stored on the computer readable storage medium. The program is executed by a processor to implement the control method described above.

[0053] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise. In addition, it should be understood that the terms "comprise" and / or "include" as used in the specification indicate the presence of the features, steps, operations, devices, components and / or combinations thereof.

[0054] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0055] Of course, the above is the preferred embodiment of the present application. It should be noted that for those skilled in the art, several improvements and refinements can be made without departing from the basic principles of the present application, and these improvements and refinements are also considered within the scope of protection of the present application.

Claims

1. A control method of an inflator pump, characterized by, The inflator pump comprises: A shell (10) provided with an air suction port (11); a heat dissipation air duct (12) is formed inside the shell (10); A cylinder (20) is arranged inside the shell (10), and an air suction port (21) of the cylinder (20) is communicated with the air suction port (11); A heat dissipation fan (30) is arranged in the heat dissipation air duct (12); an air inlet end (12a) of the heat dissipation air duct (12) is communicated with the air suction port (11); An electromagnetic valve (40) is arranged at the air inlet end (12a) of the heat dissipation air duct (12), and the electromagnetic valve (40) is used to control the communication and isolation of the air inlet end (12a) of the heat dissipation air duct (12) and the air suction port (11); the electromagnetic valve (40) has a first state for controlling the communication of the air inlet end (12a) of the heat dissipation air duct (12) and the air suction port (11), and the electromagnetic valve (40) has a second state for controlling the isolation of the air inlet end (12a) of the heat dissipation air duct (12) and the air suction port (11); A pressure sensor (50) is arranged inside the shell (10), and the pressure sensor (50) is used to detect the air suction pressure of the cylinder (20); A controller is electrically connected with the electromagnetic valve (40) and the pressure sensor (50), and the controller is used to receive the signal of the pressure sensor (50) and control the electromagnetic valve (40) to switch between the first state and the second state; The control method comprises: Obtaining the air suction pressure of the cylinder; Judging whether the air suction pressure is less than a first preset value; If yes, controlling the electromagnetic valve to switch to the first state; if no, controlling the electromagnetic valve to switch to the second state; After the step of obtaining the air suction pressure of the cylinder, the following step is further included: if the air suction pressure is greater than a second preset value, controlling the inflator pump to be closed; Obtaining the rising speed value of the air suction pressure within a preset time; Judging whether the rising speed value is greater than a preset speed value; If yes, controlling the inflator pump to be closed.

2. The control method according to claim 1, wherein A transition cavity (13) is formed inside the shell (10), and the transition cavity (13) is communicated with the air suction port (11); The transition cavity (13) is communicated with the air inlet end (12a) of the heat dissipation air duct (12) through a ventilation hole (14), the electromagnetic valve (40) is arranged at the ventilation hole (14), and the electromagnetic valve (40) controls the communication and isolation of the air inlet end (12a) of the heat dissipation air duct (12) and the air suction port (11) by opening or closing the ventilation hole (14).

3. The control method according to claim 2, wherein An air suction cavity (15) is formed inside the shell (10), and the air suction cavity (15) is communicated with the transition cavity (13); The air suction port (21) of the cylinder (20) is located in the air suction cavity (15).

4. The control method according to claim 3, characterized by, The inflator pump further comprises: A cylinder seal (60) is arranged inside the shell (10), and forms the suction chamber (15) between the cylinder seal (60) and the shell plate of the shell (10), and the pressure sensor (50) is arranged in the suction chamber (15).

5. The control method according to claim 1, wherein, The cylinder (20) is at least partially arranged in the heat dissipation air duct (12).

6. The control method according to claim 1, characterized by, The shell (10) is provided with an air inlet, and the exhaust port (22) of the cylinder (20) is in communication with the air inlet.

7. The control method according to claim 1, characterized by, The exhaust end (12b) of the heat dissipation air duct (12) is arranged on the shell (10), and the heat dissipation fan (30) drives the airflow to flow from the air inlet end (12a) to the exhaust end (12b) of the heat dissipation air duct (12).

8. The control method according to claim 1, characterized by, The first preset value is 50 kPa.

9. The control method according to claim 1, characterized by, The second preset value is 10 MPa.

10. The control method according to claim 1, characterized by, The preset speed value is 1 MPa / s.

11. A computer readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the method of any one of claims 1-10.

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