A car suspension air pump that is beneficial to motor heat dissipation

Abstract

The present invention relates to the technical field of suspension air pumps, and specifically to an automobile suspension air pump that is conducive to heat dissipation of a motor, including a compressor cylinder, the compressor cylinder including a power compression mechanism, a linkage pressurizing mechanism and a heat dissipation mechanism, the power compression mechanism is used to convert low-pressure external gas into high pressure to avoid gas backflow, the linkage pressurizing mechanism cooperates with the power mechanism to further increase the gas pressure, the multi-stage gas compression method improves the working efficiency of the compressor cylinder, and the heat dissipation mechanism uses the power of the power compression mechanism to take away the heat emitted by the motor, which is convenient for using the atmospheric pressure difference for heat dissipation. The present invention designs a power compression mechanism to send external gas from the first piston cavity into the second piston cavity, uses a reciprocating piston compressor for compression, and the through holes at the piston ends of the two pumps are connected, and the first order flows to the second order, which can save kinetic energy, shorten the stroke, reduce the volume of the cylinder, achieve good small and light weight, and improve the working efficiency of the compressor cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of suspension air pumps, and in particular to an automobile suspension air pump which is beneficial to the heat dissipation of a motor. Background Art

[0002] Suspension air pump, also known as air suspension compressor, is mainly used to provide compressed air for the vehicle's air suspension system. When the air suspension system needs to adjust the height, stiffness or shock absorption effect, the air pump will provide the required compressed air, thereby improving the driving and riding comfort and stability of the car. The air suspension system is an advanced suspension system that adjusts the height, stiffness and shock absorption effect of the suspension by changing the air volume, providing a better driving and riding experience.

[0003] Most existing suspension air pumps can only perform single-stage pressurization, are large in size, not light enough, and easily waste energy. During the operation of the motor, the lubricating oil of the motor brushes will enter the interior of the air pump through the air flow of the replenishing air, which is easy to pollute the air and affect the life of the air pump. In addition, the operation process of the motor will generate a high temperature, and a separate cooling device needs to be set up, which increases the complexity of the device and is not convenient to use.

[0004] In response to the above technical problems, Chinese patent application number: CN201810907125.0, an electric air pump that is conducive to heat dissipation, a cooling hole corresponding to the motor installation position and connected to the inside of the motor is opened through the top wall of the shell, an exhaust fan that discharges the gas in the shell to the cooling hole is installed on the output shaft of the motor, and the shell is also provided with an air inlet channel that connects the inner cavity of the shell and the outside. When the electric air pump is working, the motor will drive the exhaust fan to rotate, and the air will be sucked into the shell through the air inlet channel to cool the transmission structure. At the same time, the exhaust fan pushes the air to the cooling hole and discharges it through the inside of the motor, which has a cooling effect on the motor, and the cooling is increased without consuming extra energy. The heat dissipation effect is excellent, which protects the motor and increases the service life of the motor.

[0005] Although this kind of electric air pump which is conducive to heat dissipation can dissipate heat for the motor, it is prone to dead angles, the heat dissipation is not thorough enough, the efficiency is low, and it is relatively bulky and not light enough.

[0006] Therefore, an automobile suspension air pump which is beneficial to the heat dissipation of the motor is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide an automobile suspension air pump which is beneficial to the heat dissipation of the motor, so as to solve the problems mentioned in the above background technology that the air is easily contaminated by the engine oil and the heat dissipation of the motor is not convenient.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile suspension air pump that is beneficial to motor heat dissipation, including a compressor cylinder, the compressor cylinder including a power compression mechanism, a linkage pressurizing mechanism and a heat dissipation mechanism, the power compression mechanism is used to convert external low-pressure gas into high pressure to avoid gas backflow, the linkage pressurizing mechanism cooperates with the power mechanism to further increase the gas pressure, the multi-stage gas compression method improves the working efficiency of the compressor cylinder, and the heat dissipation mechanism uses the power of the power compression mechanism to take away the heat emitted by the motor, which is convenient for heat dissipation using the atmospheric pressure difference.

[0009] Preferably, the power mechanism includes a motor housing fixedly mounted on one side of the compressor cylinder body, one end of a rotating rod is rotatably connected to the interior of the motor housing via a first bearing, a connecting head is fixedly mounted on the other end of the rotating rod, the connecting head rotates in the mounting member via a second bearing, a motor rotor is sleeved on the middle part of the rotating rod, and a plurality of groups of permanent magnet stators are evenly arranged on the outside of the motor rotor.

[0010] Preferably, the connecting head is fixedly installed in the middle part of the piston connector, the interior of the compressor cylinder is divided into a first piston chamber and a second piston chamber by the piston connector, a first piston is fixedly installed on one end of the piston connector close to the first piston chamber, a first piston ring is arranged on the outer side of the first piston, and a first one-way valve plate is arranged on the outer end of the first piston ring.

[0011] Preferably, a cavity cover is fixedly installed at the bottom end of the compressor cylinder body, and an inclined first gas supply channel is arranged inside the cavity cover. The other end of the first gas supply channel passes through the cavity cover and is connected to one end of the second gas supply channel. The other end of the second gas supply channel is connected to the third gas supply channel inside the compressor cylinder body, and the other end of the third gas supply channel is connected to the second piston chamber.

[0012] Preferably, a second one-way valve is provided between the second gas delivery channel and the third gas delivery channel, and a third one-way valve is provided between the second piston chamber and the third gas delivery channel.

[0013] Preferably, the linkage pressurizing mechanism comprises a second piston hinged to one end of the piston connector via a piston bearing, and a second piston ring is arranged on the outer side of the second piston.

[0014] Preferably, a fourth air delivery channel connected to the interior of the first drying tank is provided on the side of the second piston chamber, the first drying tank is connected to the second drying tank, and both the first drying tank and the second drying tank are mounted on the compressor cylinder body.

[0015] Preferably, the heat dissipation mechanism includes a motor end cover fixedly mounted on the motor housing, an air inlet hole is provided on the motor end cover, air inlet notches are opened between several groups of permanent magnet stators, and circular holes connected to the inside of the compressor cylinder are evenly opened on the mounting member.

[0016] Preferably, the interior of the second drying tank passes through the compressor cylinder body and is connected to the normally open air interface inside the solenoid valve housing, and the solenoid valve housing is fixedly mounted on the compressor cylinder body.

[0017] Preferably, a solenoid valve is arranged inside the solenoid valve housing, and a pressure relief port is arranged between the compressor cylinder body and the solenoid valve housing.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention designs a power compression mechanism to send external gas from the first piston chamber into the second piston chamber, and adopts a reciprocating piston compressor for compression. The through holes at both ends of the double pumps are connected, and the first-order flows to the second-order. This can save kinetic energy, shorten the stroke, reduce the volume of the cylinder, achieve good miniaturization and lightness, and improve the working efficiency of the compressor cylinder. One-way transportation is performed through the first one-way valve plate, the second one-way valve plate and the third one-way valve plate to avoid gas backflow.

[0020] 2. The present invention designs a linkage pressurizing mechanism to cooperate with a power compression mechanism, and uses the power of the power compression mechanism to perform secondary pressure boosting to enhance the conveying effect. It can also dry and filter the incoming high-pressure gas to reduce moisture in the gas. The material of the first piston and the second piston is polytetrafluoroethylene, which has self-lubricating, wear-resistant and durable properties and avoids oil pollution, so that the compressor does not need lubrication. Nano-scale activated carbon fibers are added to the first piston ring and the second piston ring to improve the durability of the first piston and the second piston.

[0021] 3. The present invention designs a heat dissipation mechanism to cooperate with a power compression mechanism, and sets air inlet holes and air inlet notches to allow gas to pass through the inside of the motor housing. The gas is used to bring the heat generated inside the motor housing out to the first piston cavity, thereby dissipating the heat inside the motor housing, making it easier to dissipate heat by utilizing the atmospheric pressure difference, and dissipating heat more fully, so that the compressor does not need to be cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The overall cross-sectional view of an automobile suspension air pump that is beneficial to motor heat dissipation according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The present invention is an embodiment of a vehicle suspension air pump that is beneficial to motor heat dissipation Figure 1 The enlarged schematic diagram at A in the middle;

[0025] Figure 3 The present invention is an embodiment of a vehicle suspension air pump that is beneficial to motor heat dissipation Figure 1 The enlarged schematic diagram of point B in the middle;

[0026] Figure 4 This is a three-dimensional schematic diagram of a piston connector of an automobile suspension air pump that is beneficial to motor heat dissipation according to an embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional schematic diagram of a piston connector of an automobile suspension air pump that is beneficial to motor heat dissipation according to an embodiment of the present invention;

[0028] Figure 6 This is a three-dimensional schematic diagram of a cavity cover of an automobile suspension air pump that is beneficial to heat dissipation of a motor according to an embodiment of the present invention;

[0029] Figure 7 The overall cross-sectional view of an automobile suspension air pump that is beneficial to motor heat dissipation according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 8 The present invention is an embodiment of a vehicle suspension air pump that is beneficial to motor heat dissipation Figure 7 Enlarged schematic diagram at point C in the middle.

[0031] The markings in the figure are: 1. compressor cylinder; 2. motor housing; 3. first bearing; 4. rotating rod; 5. motor rotor; 6. permanent magnet stator; 7. second bearing; 8. connector; 9. piston connector; 10. first piston chamber; 11. second piston chamber; 12. motor end cover; 13. air inlet; 14. air inlet notch; 15. first piston; 16. first piston ring; 17. first one-way valve plate; 18. chamber cover; 19. first gas transmission channel; 20. second gas transmission channel; 21. second one-way valve plate; 22. third gas transmission channel; 23. piston bearing; 24. second piston; 25. second piston ring; 26. third one-way valve plate; 27. fourth gas transmission channel; 28. first drying tank; 29. ​​second drying tank; 30. solenoid valve housing; 31. normally open air interface; 32. solenoid valve; 33. pressure relief port. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] See also Figures 1 to 8 The present invention provides a technical solution: an automobile suspension air pump that is beneficial to motor heat dissipation, including a compressor cylinder 1, the compressor cylinder 1 includes a power compression mechanism, a linkage pressurizing mechanism and a heat dissipation mechanism, the power compression mechanism is used to convert external low-pressure gas into high pressure to avoid gas backflow, the linkage pressurizing mechanism cooperates with the power mechanism to further increase the gas pressure, the multi-stage gas compression method improves the working efficiency of the compressor cylinder 1, the heat dissipation mechanism uses the power of the power compression mechanism to take away the heat emitted by the motor, and it is convenient to use the atmospheric pressure difference for heat dissipation.

[0035] like Figure 2 and Figure 4 as well as Figure 6As shown, the lubricating oil of the motor brush will enter the interior of the compressor cylinder 1 through the air flow of the air supplement, which is easy to pollute the air and affect the life of the air pump. The power mechanism includes a motor housing 2 fixedly mounted on one side of the compressor cylinder 1, the interior of the motor housing 2 is rotatably connected to one end of a rotating rod 4 through a first bearing 3, and a connector 8 is fixedly mounted on the other end of the rotating rod 4. The connector 8 rotates in the mounting member through a second bearing 7. The middle part of the rotating rod 4 is sleeved with a motor rotor 5, and a plurality of groups of permanent magnet stators 6 are evenly arranged on the outside of the motor rotor 5. The connector 8 is fixedly mounted in the middle of a piston connector 9, and the interior of the compressor cylinder 1 is divided into a first piston chamber by the piston connector 9. 10 and a second piston chamber 11, a first piston 15 is fixedly installed at one end of the piston connector 9 close to the first piston chamber 10, a first piston ring 16 is arranged on the outer side of the first piston 15, and a first one-way valve plate 17 is arranged on the outer end of the first piston ring 16, a chamber cover 18 is fixedly installed at the bottom end of the compressor cylinder body 1, an inclined first gas transmission channel 19 is arranged inside the chamber cover 18, the other end of the first gas transmission channel 19 passes through the chamber cover 18 and is connected to one end of the second gas transmission channel 20, the other end of the second gas transmission channel 20 is connected to a third gas transmission channel 22 inside the compressor cylinder body 1, the other end of the third gas transmission channel 22 is connected to the second piston chamber 11, and the second gas transmission channel A second one-way valve plate 21 is arranged between the second piston chamber 11 and the third gas delivery channel 22, and a third one-way valve plate 26 is arranged between the second piston chamber 11 and the third gas delivery channel 22. When working, firstly, power is supplied to the inside of the motor housing 2, and the motor rotor 5, the permanent magnet stator 6 and the second bearing 7 are used to drive the connector 8 to rotate, and the connector 8 drives the piston connector 9 to reciprocate, and then the piston connector 9 drives the first piston 15 to contract inwardly, the first one-way valve plate 17 opens, and the gas enters the first piston chamber 10. When the first piston 15 is compressed outwardly, the first one-way valve plate 17 is closed, the second one-way valve plate 21 is opened, and the gas in the first piston chamber 10 passes through the first one-way valve plate 26 on the chamber cover 18. The first gas delivery channel 19 and the second gas delivery channel 20 enter the third gas delivery channel 22, and then the gas in the third gas delivery channel 22 pushes the third one-way valve plate 26 to open and enter the second piston chamber 11, which is beneficial to sending the external gas from the first piston chamber 10 to the second piston chamber 11. The reciprocating piston compressor is used for compression, and the through holes at both ends of the double pumps are connected. The first order flows to the second order, which can save kinetic energy, shorten the stroke, reduce the volume of the cylinder body, achieve good miniaturization and lightness, and improve the working efficiency of the compressor cylinder body 1. One-way delivery is performed through the first one-way valve plate 17, the second one-way valve plate 21 and the third one-way valve plate 26 to avoid gas backflow.

[0036] As an embodiment of the present invention, Figure 1 and Figure 3 as well as Figure 7As shown, the linkage pressurizing mechanism includes a second piston 24 hinged at one end of the piston connector 9 through a piston bearing 23, a second piston ring 25 is arranged on the outer side of the second piston 24, and a fourth gas delivery channel 27 connected to the inside of the first drying tank 28 is arranged on the side of the second piston chamber 11, the first drying tank 28 is connected to the second drying tank 29, and the first drying tank 28 and the second drying tank 29 are both installed on the compressor cylinder body 1. First, the piston connector 9 drives the second piston 24 to reciprocate through the piston bearing 23, and then the second piston 24 delivers the gas in the second piston chamber 11 into the compressor through the fourth gas delivery channel 27. The gas in the first drying tank 28 is filtered into the second drying tank 29, and finally the gas in the first drying tank 28 is fully filtered, which is beneficial to use the power of the power compression mechanism for secondary pressure boosting, enhance the conveying effect, and dry and filter the incoming high-pressure gas to reduce moisture in the gas. The material of the first piston 15 and the second piston 24 is polytetrafluoroethylene, which has self-lubricating, wear-resistant and durable properties, avoids oil pollution, so that the compressor does not need lubrication. The first piston ring 16 and the second piston ring 25 are added with nano-level activated carbon fibers, which improves the durability of the first piston 15 and the second piston 24.

[0037] As an embodiment of the present invention, Figure 1 and Figure 7 as well as Figure 8 As shown, the operation process of the motor will generate a higher temperature, and a separate cooling device needs to be set up, which increases the complexity of the device and is not convenient to use. The heat dissipation mechanism includes a motor end cover 12 fixedly mounted on the motor housing 2, and an air inlet hole 13 is set on the motor end cover 12. An air inlet notch 14 is opened between several groups of permanent magnet stators 6, and circular holes connected to the interior of the compressor cylinder body 1 are evenly opened on the mounting member. The interior of the second drying tank 29 passes through the compressor cylinder body 1 and is connected to the normally open air interface 31 inside the solenoid valve housing 30. The solenoid valve housing 30 is fixedly mounted on the compressor cylinder body 1, and a solenoid valve 32 is set inside the solenoid valve housing 30. A pressure relief port 33 is set between the compressor cylinder body 1 and the solenoid valve housing 30. The gas enters the motor through the air inlet hole 13 in the motor end cover 12 Inside the housing 2, the gas in the motor housing 2 enters the first piston chamber 10 through the air inlet notch 14 and the circular hole on the mounting part, and the gas in the second drying tank 29 is discharged through the normally open air interface 31 on the solenoid valve housing 30. Finally, the power is cut off inside the motor housing 2 and the solenoid valve 32 is turned on. The solenoid valve 32 opens the pressure relief port 33, and the air is released between the first piston chamber 10 and the second piston chamber 11, so that the gas passes through the air inlet notch 14 and is discharged from the air inlet hole 13. It is beneficial to set the air inlet hole 13 and the air inlet notch 14 to allow the gas to pass through the inside of the motor housing 2, and use the gas to bring the heat generated inside the motor housing 2 out to the first piston chamber 10, thereby dissipating the heat inside the motor housing 2, and facilitating the use of the atmospheric pressure difference for heat dissipation, and the heat dissipation is more sufficient, so that the compressor does not need to be cooled.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0039] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automobile suspension air pump that is beneficial to motor heat dissipation, comprising a compressor cylinder (1), characterized in that: The compressor cylinder (1) comprises a power compression mechanism, a linkage pressurizing mechanism and a heat dissipation mechanism. The power compression mechanism is used to convert low-pressure gas from the outside into high pressure to prevent gas backflow. The linkage pressurizing mechanism cooperates with the power mechanism to further increase the gas pressure. The multi-stage gas compression method improves the working efficiency of the compressor cylinder (1). The heat dissipation mechanism uses the power of the power compression mechanism to take away the heat emitted by the motor, making it easy to use the atmospheric pressure difference for heat dissipation. The power mechanism comprises a motor housing (2) fixedly mounted on one side of a compressor cylinder body (1); one end of a rotating rod (4) is rotatably connected to the inside of the motor housing (2) via a first bearing (3); a connector (8) is fixedly mounted on the other end of the rotating rod (4); the connector (8) is rotatably mounted in a mounting member via a second bearing (7); a motor rotor (5) is sleeved on the middle of the rotating rod (4); and a plurality of groups of permanent magnet stators (6) are evenly arranged on the outside of the motor rotor (5); The connecting head (8) is fixedly mounted in the middle of the piston connector (9); the interior of the compressor cylinder body (1) is divided into a first piston chamber (10) and a second piston chamber (11) by the piston connector (9); a first piston (15) is fixedly mounted on one end of the piston connector (9) close to the first piston chamber (10); a first piston ring (16) is arranged on the outer side of the first piston (15); and a first one-way valve plate (17) is arranged on the outer end of the first piston ring (16); A cavity cover (18) is fixedly mounted on the bottom end of the compressor cylinder body (1), and an inclined first gas supply passage (19) is arranged inside the cavity cover (18); the other end of the first gas supply passage (19) passes through the cavity cover (18) and is connected to one end of a second gas supply passage (20); the other end of the second gas supply passage (20) is connected to a third gas supply passage (22) inside the compressor cylinder body (1), and the other end of the third gas supply passage (22) is connected to the second piston chamber (11).

2. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 1 is characterized in that: A second one-way valve plate (21) is provided between the second gas delivery channel (20) and the third gas delivery channel (22), and a third one-way valve plate (26) is provided between the second piston chamber (11) and the third gas delivery channel (22).

3. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 2 is characterized in that: The linkage pressurizing mechanism comprises a second piston (24) hingedly connected to one end of the piston connector (9) via a piston bearing (23), and a second piston ring (25) is arranged on the outer side of the second piston (24).

4. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 3 is characterized in that: A fourth gas delivery passage (27) is provided on the side of the second piston chamber (11) and is connected to the interior of the first drying tank (28). The first drying tank (28) is connected to the second drying tank (29). Both the first drying tank (28) and the second drying tank (29) are mounted on the compressor cylinder body (1).

5. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 1 is characterized in that: The heat dissipation mechanism comprises a motor end cover (12) fixedly mounted on a motor housing (2), an air inlet hole (13) being provided on the motor end cover (12), air inlet notches (14) being provided between the plurality of groups of permanent magnet stators (6), and circular holes communicating with the interior of a compressor cylinder body (1) being uniformly provided on the mounting member.

6. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 4, characterized in that: The interior of the second drying tank (29) passes through the compressor cylinder body (1) and is connected to a normally open air interface (31) inside the solenoid valve housing (30), and the solenoid valve housing (30) is fixedly mounted on the compressor cylinder body (1).

7. The automobile suspension air pump that is beneficial to motor heat dissipation according to claim 6, characterized in that: A solenoid valve (32) is arranged inside the solenoid valve housing (30), and a pressure relief port (33) is arranged between the compressor cylinder body (1) and the solenoid valve housing (30).

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