High-pressure air pump

Abstract

The high-pressure air pump comprises a main body, a rotor assembly and a stator assembly, the rotor assembly is rotationally arranged in the main body, the stator assembly is fixed relative to the main body, the rotor assembly is rotationally connected to the stator assembly, the rotor assembly comprises an inner rotor, the stator assembly comprises a coil assembly and an isolation hood, and the inner rotor is rotationally arranged on the inner side of the isolation hood. The coil assembly is fixedly arranged on the outer side of the isolation cover, the isolation piece is arranged between the coil assembly and the isolation cover in a clamped mode, and the isolation piece is coated with a Teflon coating layer. The arrangement of the isolation sheet effectively isolates part of heat generated by the rotor assembly, improves the effective conversion efficiency of the motor, and reduces the energy consumption.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pumps, and in particular relates to a high-pressure air pump. Background Art

[0002] The existing rolling rotor air pump uses an eccentric cylindrical rotor to rotate in the cylinder to change the working volume of the cylinder, thereby realizing the suction, compression and exhaust of the gas. However, after the motor is started, when the rotor assembly rotates and generates dynamic friction motion with other components, part of the kinetic energy is converted into heat energy, which is then transferred to the stator assembly, resulting in low effective conversion efficiency of the motor and high energy consumption. Utility Model Content

[0003] The purpose of the utility model is to provide a high-pressure air pump to at least solve one of the above technical problems.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] A high-pressure air pump, comprising:

[0006] main body;

[0007] A rotor assembly, the rotor assembly being rotatably disposed in the main body;

[0008] A stator assembly, wherein the stator assembly is fixed relative to the main body, and the rotor assembly is rotatably connected to the main body;

[0009] The rotor assembly includes an inner rotor, and the stator assembly includes a coil group and an isolation cover. The inner rotor is rotatably arranged inside the isolation cover, and the coil group is fixedly arranged outside the isolation cover.

[0010] A spacer, the spacer being clamped between the coil assembly and the isolation cover;

[0011] The isolation sheet is coated with a Teflon coating layer.

[0012] Through such a configuration, utilizing the lower thermal conductivity of Teflon, the heat propagates more slowly in the isolation plate. The configuration of the isolation plate effectively isolates part of the heat generated by the rotor assembly, thereby improving the effective conversion efficiency of the motor and reducing energy consumption.

[0013] Preferably, it further comprises an outer shell, wherein the outer shell comprises an upper shell and a lower shell that are fixedly connected;

[0014] The lower shell is fixedly connected to the main body, and the upper shell is fixedly connected to the coil group.

[0015] Preferably, it also includes an air intake assembly, which includes an air intake pipe and a filter. The air intake pipe passes through the filter, and one end of the air intake pipe is fixedly connected to the main body.

[0016] Preferably, the isolation cover is configured as a stainless steel isolation cover.

[0017] Preferably, the rotor assembly further comprises a rotating shaft and a fixing pin, and the rotating shaft is configured as an eccentric shaft;

[0018] The rotating shaft is indirectly rotatably connected to the main body via a bearing. The rotating shaft is penetrated by the inner rotor. The fixing pin is also penetrated by the inner rotor and is threadedly connected to the rotating shaft.

[0019] Preferably, the upper shell is configured to be aluminum.

[0020] More preferably, it further includes a base, the number of which is configured to be three or more, and the three or more bases are evenly arrayed around the axis of the lower shell.

[0021] Preferably, it further comprises a cylinder body and a baffle, wherein the baffle is movably connected to the cylinder body, and the baffle divides the cylinder body into an air inlet chamber and an air outlet chamber;

[0022] The rotating shaft movably abuts against the baffle, and the rotating shaft rotates to adjust the position of the baffle relative to the cylinder body, thereby adjusting the volume of the air inlet cavity and the air outlet cavity.

[0023] Preferably, it further comprises a balance wheel ring, wherein the balance wheel ring is sleeved on the rotating shaft, and the outer wall of the balance wheel ring is movably in contact with the blocking piece.

[0024] Preferably, the air intake pipe passes through the main body, is fixedly connected to the cylinder body, and is communicated with the air intake chamber.

[0025] Beneficial effects:

[0026] The utility model discloses a high-pressure air pump, comprising a main body, a rotor assembly and a stator assembly, wherein the rotor assembly is rotatably arranged in the main body, the stator assembly is fixed relative to the main body, the rotor assembly is rotatably connected to the stator assembly, the rotor assembly comprises an inner rotor, the stator assembly comprises a coil group and an isolation cover, the inner rotor is rotatably arranged on the inner side of the isolation cover, the coil group is fixedly arranged on the outer side of the isolation cover, and also comprises an isolation sheet, the isolation sheet is clamped between the coil group and the isolation cover, and the isolation sheet is coated with Teflon coating. With such an arrangement, the heat propagates slowly in the isolation sheet by utilizing the lower thermal conductivity of Teflon, and the arrangement of the isolation sheet effectively isolates part of the heat generated by the rotor assembly, thereby improving the effective conversion efficiency of the motor and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a three-dimensional structural diagram of a high-pressure air pump according to an embodiment of the utility model;

[0028] Figure 2 For along Figure 1 Sectional view in the AA direction;

[0029] Figure 3 This is a three-dimensional structural diagram with the upper shell hidden;

[0030] Figure 4 This is a structural diagram from the perspective of the bottom of the cylinder body after the lower shell is hidden;

[0031] Figure 5 It is a cross-sectional view along the horizontal direction.

[0032] Reference numerals

[0033] 1-upper shell; 2-lower shell; 3-base; 4-filter; 5-inlet pipe; 6-air outlet interface; 61-sealing sleeve; 7-rotating shaft; 8-fixing pin; 9-inner rotor; 10-coil assembly; 11-isolating cover; 12-isolating plate; 13-main body; 14-face cover; 15-sealing gasket; 16-oil storage bottom cover; 17-oil absorption baffle plate; 18-baffle plate; 19-reset member; 20-balance wheel ring; 21-first bearing; 22-second bearing; 23-cylinder body; 24-valve plate; 25-oil and gas separation cover. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] The technical solution of the utility model is described in detail below with specific embodiments.

[0036] See also Figure 1 The utility model embodiment discloses a high-pressure air pump, including an outer shell and an air intake assembly, wherein the outer shell includes an upper shell 1 and a lower shell 2 fixedly connected, wherein the upper shell 1 is provided with an air outlet interface 6, and a sealing sleeve 61 is provided between the air outlet interface 6 and the upper shell 1, to ensure that the gas in the outer shell can only be output to the outside through the air outlet interface 6, so as to maintain the air pressure stability of the output gas; the lower shell 2 is fixedly connected to a base 3, the number of the base 3 is configured to be three or more, and the three or more bases 3 are evenly arrayed around the axis of the lower shell 2, Figure 1 The number of the middle bases 3 is three, and of course it can also be four, five or more, which will not be elaborated here; the air intake assembly includes an air intake pipe 5 and a filter 4, the air intake pipe 5 passes through the filter 4, and one end of the air intake pipe 5 is penetrated in the lower shell 2.

[0037] Please also refer to Figure 2 and Figure 3 The high-pressure air pump of this embodiment also includes a main body 13, a rotor assembly and a stator assembly. The rotor assembly is arranged in the main body 13, the stator assembly is fixed relative to the main body 13, the rotor assembly is rotatably connected to the stator assembly, the rotor assembly includes an inner rotor 9, the stator assembly includes a coil group 10 and an isolation cover 11, the inner rotor 9 is rotatably arranged on the inner side of the isolation cover 11, the coil group 10 is fixedly arranged on the outer side of the isolation cover 11, and is fixedly connected to the upper shell 1, the isolation cover 11 is fixedly connected to the main body 13, and the lower shell 2 is also fixedly connected to the main body 13. The air inlet pipe 5 is penetrated through the lower shell 2 and is fixedly connected to the main body 13, and is used to input external gas into the outer shell. After the gas forms high-pressure gas in the air pump, it is output to the outside from the gas outlet interface 6. The principle of gas forming high-pressure gas will be explained later.

[0038] As a preferred embodiment, the upper shell 1 is configured to be made of aluminum. The aluminum upper shell 1 has good thermal conductivity and can effectively dissipate the heat generated by the coil assembly 10 and reduce heat accumulation.

[0039] As another preferred embodiment, the isolation cover 11 is configured with stainless steel. This configuration can protect the winding group and prevent the winding group from being corroded by the medium inside the isolation cover 11, thereby preventing the coil group 10 from being punctured and reducing the risk of leakage.

[0040] Specifically, the rotor assembly also includes a rotating shaft 7 and a fixing pin 8. The rotating shaft 7 is penetrated by the inner rotor 9. The fixing pin 8 is also penetrated by the inner rotor 9 and is threadedly connected to the rotating shaft 7. After the fixing pin 8 and the inner rotor 9 are connected, the bottom surface of the fixing pin 8 always abuts against the top surface of the inner rotor 9, so that the rotating shaft 7 is fixed in the axial position of the inner rotor 9 and will not move in the vertical direction. The positions of the inner rotor 9, the fixing pin 8 and the rotating shaft 7 are relatively fixed and can rotate synchronously. The rotating shaft 7 is configured as an eccentric shaft, please refer to Figure 4 The air pump of this embodiment also includes a cylinder body 23, a sink groove is provided at the bottom of the cylinder body 23, a balance wheel ring 20 is provided in the sink groove, and the balance wheel ring 20 is sleeved on the rotating shaft 7. When the rotating shaft 7 rotates, it can drive the balance wheel ring 20 to roll along the inner wall of the sink groove. Preferably, an oil suction baffle 17 is provided at the end of the rotating shaft 7 close to the balance wheel ring 20 to improve the oil suction efficiency and enhance the lubrication effect of the moving parts in the air pump; the air pump of this embodiment also includes a baffle 18 and a reset member 19, one end of the reset member 19 is fixedly connected to the cylinder body 23, and the other end is fixedly connected to the baffle 18. The outer wall of the balance wheel ring 20 movably abuts against the baffle 18, that is, the baffle 18 indirectly abuts against the rotating shaft 7. Figure 4As shown, the reset member 19 in this embodiment is configured as a spring, and the spring always keeps a contracted state, that is, the spring has a thrust on the baffle 18, and the baffle 18 is squeezed when the balance wheel ring 20 rotates. When the squeezing force is greater than the elastic force of the spring, the baffle 18 compresses the spring, and the size of the baffle 18 in the sink changes. Specifically, Figure 4 As shown in the mark, the baffle 18 and the balance wheel ring 20 divide the sink into two parts, I and II, wherein I is the air outlet cavity and II is the air inlet cavity; when the power is turned on, the inner rotor 9 drives the shaft 7 to rotate, and the shaft 7 drives the balance wheel ring 20 to rotate clockwise. It can be understood that the clockwise here refers to Figure 4 In the viewing angle, the rotating shaft 7 and the balance wheel ring 20 rotate or roll in the sink in the clockwise direction, and the balance wheel ring 20 squeezes the baffle 18, so that the size of the baffle 18 in the sink becomes smaller. At this time, the space of the air inlet chamber II gradually increases, and the gas is sucked in from the air inlet pipe 5 of the air inlet assembly and filtered through the filter 4. As the balance wheel ring 20 continues to rotate, the sucked gas enters the air outlet chamber I. During the clockwise rotation of the rotating shaft 7 and the balance wheel ring 20, the space of the air outlet chamber I gradually decreases, and the gas is subjected to greater pressure and is compressed into high-pressure gas, such as Figure 2 and Figure 5 As shown, a valve plate 24 is provided on the main body 13. The high-pressure gas will push open the valve plate 24 and move upward, and then pass through the oil-gas separation cover 25 provided on the main body 13 to separate the high-pressure gas from the lubricating oil. The high-pressure gas then passes through the gap between the inner rotor 9 and the isolation cover 11 and is discharged through the gas outlet interface 6 of the upper shell 1.

[0041] When the rotor assembly rotates and generates dynamic friction motion with other components, part of the kinetic energy is converted into heat energy and then transferred to the stator assembly, which will make the effective conversion efficiency of the motor low. To solve this problem, the air pump of the utility model embodiment is provided with an isolation plate 12. Specifically, the thickness of the isolation plate 12 is configured to be 2 mm. The isolation plate 12 is clamped between the coil group 10 and the isolation cover 11, and the isolation plate 12 is coated with a Teflon coating layer. Due to the low thermal conductivity of Teflon, the heat propagates slowly in the isolation plate 12. The setting of the isolation plate 12 effectively isolates part of the heat generated by the rotor assembly, improves the effective conversion efficiency of the motor, and reduces energy consumption.

[0042] like Figure 2As shown, bearings are provided on both the upper and lower sides of the oil absorption baffle 17, which are the first bearing 21 and the second bearing 22 respectively. The rotating shaft 7 is indirectly rotatably connected with the main body 13 through the first bearing 21 and the second bearing 22 to reduce the dynamic friction between the oil absorption baffle 17 and the main body 13, so that the process of pressurizing gas is smoother, and reducing the dynamic friction can also reduce heat generation and lower the temperature of the lubricating oil; the end of the balance wheel ring 20 close to the base 3 is provided with a sealing gasket 15, a surface cover 14 and an oil storage bottom cover 16 in sequence to form a closed oil storage space to prevent the leakage of the lubricating oil and ensure the lubrication effect of each moving part.

[0043] In summary, the utility model provides a high-pressure air pump, including a main body 13, a rotor assembly and a stator assembly. The rotor assembly is rotatably arranged in the main body 13, the stator assembly is fixed relative to the main body 13, the rotor assembly is rotatably connected to the stator assembly, the rotor assembly includes an inner rotor 9, the stator assembly includes a coil group 10 and an isolation cover 11, the inner rotor 9 is rotatably arranged on the inner side of the isolation cover 11, the coil group 10 is fixedly arranged on the outer side of the isolation cover 11, and also includes an isolation sheet 12, the isolation sheet 12 is clamped between the coil group 10 and the isolation cover 11, and the isolation sheet 12 is coated with a Teflon coating layer. In this arrangement, Teflon has a lower thermal conductivity, and the speed of heat propagation in the isolation sheet 12 is slower. The setting of the isolation sheet 12 effectively isolates part of the heat generated by the rotor assembly, improves the effective conversion efficiency of the motor, and reduces energy consumption.

[0044] The above is a detailed description of an embodiment of a high-pressure air pump provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A high-pressure air pump, characterized in that: include: Subject (13); A rotor assembly, the rotor assembly being rotatably disposed in the main body (13); A stator assembly, the stator assembly is fixed relative to the main body (13), and the rotor assembly is rotatably connected to the main body (13); The rotor assembly comprises an inner rotor (9), the stator assembly comprises a coil group (10) and an isolation cover (11), the inner rotor (9) is rotatably arranged inside the isolation cover (11), and the coil group (10) is fixedly arranged outside the isolation cover (11); An isolation sheet (12), the isolation sheet (12) being clamped between the coil assembly (10) and the isolation cover (11); The isolation sheet (12) is coated with a Teflon coating layer.

2. A high-pressure air pump according to claim 1, characterized in that: It also includes an outer shell, the outer shell comprising an upper shell (1) and a lower shell (2) that are fixedly connected; The lower shell (2) is fixedly connected to the main body (13), and the upper shell (1) is fixedly connected to the coil group (10).

3. A high-pressure air pump according to claim 1, characterized in that: It also includes an air intake assembly, which includes an air intake pipe (5) and a filter (4). The air intake pipe (5) passes through the filter (4), and one end of the air intake pipe (5) is fixedly connected to the main body (13).

4. A high-pressure air pump according to claim 1, characterized in that: The isolation cover (11) is configured as a stainless steel isolation cover.

5. A high-pressure air pump according to claim 3, characterized in that: The rotor assembly further comprises a rotating shaft (7) and a fixing pin (8), wherein the rotating shaft (7) is configured as an eccentric shaft; The rotating shaft (7) is indirectly rotatably connected to the main body (13) via a bearing. The rotating shaft (7) is penetrated by the inner rotor (9). The fixing pin (8) is also penetrated by the inner rotor (9) and is threadedly connected to the rotating shaft (7).

6. A high-pressure air pump according to claim 2, characterized in that: The upper shell (1) is configured as an aluminum shell.

7. A high-pressure air pump according to claim 2, characterized in that: It also includes a base (3), the number of which is configured to be three or more, and the three or more bases (3) are evenly arrayed around the axis of the lower shell (2).

8. A high-pressure air pump according to claim 5, characterized in that: It also includes a cylinder body (23) and a baffle (18), wherein the baffle (18) is movably connected to the cylinder body (23), and the baffle (18) divides the cylinder body (23) into an air inlet chamber and an air outlet chamber; The rotating shaft (7) is movably in contact with the baffle (18), and the rotating shaft (7) rotates to adjust the position of the baffle (18) relative to the cylinder body (23), thereby adjusting the volumes of the air inlet chamber and the air outlet chamber.

9. A high-pressure air pump according to claim 8, characterized in that: It also comprises a balance wheel ring (20), wherein the balance wheel ring (20) is sleeved on the rotating shaft (7), and the outer wall of the balance wheel ring (20) is movably in contact with the baffle (18).

10. A high-pressure air pump according to claim 8, characterized in that: The air intake pipe (5) passes through the main body (13), is fixedly connected to the cylinder body (23), and is in communication with the air intake chamber.

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