Air suction and discharge device based on single air pump

Abstract

The utility model provides a kind of suction and exhaust device based on single air pump, its suction and exhaust switching speed is fast, and suction and exhaust frequency can reach 30Hz, and suction and exhaust is basically noiseless, gas flow is large, wind speed is high, and air resistance is small.Suction and exhaust device based on single air pump, with a stator, reciprocating rotor, rotor has suction passage and exhaust passage;Rotor is in state one, suction port one is communicated with inlet passage one, suction port two is communicated with inlet passage two, exhaust port two is communicated with outlet passage one, exhaust port three is communicated with outlet passage three, suction port three and exhaust port one are all blocked by stator inner wall;Rotor rotates clockwise angle a from state one to reach state two, suction port one is communicated with inlet passage two, suction port three is communicated with inlet passage three, exhaust port one is communicated with outlet passage one, exhaust port two is communicated with outlet passage two, suction port two and exhaust port three are all blocked by stator inner wall.

Description

Technical Field

[0001] This utility model relates to a suction and exhaust device, specifically, a device that achieves suction and exhaust output using only one air pump. Background Technology

[0002] When an air pump is working, the internal motor and fan blades are generally designed for unidirectional rotation, thus allowing only unidirectional air intake and exhaust. To enable repeated intake and exhaust for the same device, an external intake / exhaust switching line is required. This switching line typically uses numerous solenoid valves for control, resulting in low flow rates and low air velocities. Using high-flow-rate solenoid valves would consume excessive power, produce significant noise during switching, require pilot control, and have a slow response time.

[0003] Some intake and exhaust switching pipelines use reciprocating valve cores to switch the air path, which also has the above problems. Moreover, the reciprocating frequency of the valve core is low (generally only 1Hz), which cannot meet the requirements of high-frequency intake and exhaust switching. Utility Model Content

[0004] The purpose of this invention is to provide a suction and exhaust device based on a single air pump, which has a fast suction and exhaust switching speed, an intake and exhaust frequency of up to 30Hz, and virtually no noise during suction and exhaust, as well as a large gas flow, high wind speed, and low wind resistance.

[0005] The intake and exhaust device based on a single air pump has a stator and a rotor that reciprocates relative to the stator around an axis under the drive of a drive device. The outer circumference of the rotor slides against the inner wall of the stator. The rotor has an intake channel and an exhaust channel. The intake channel has three intake ports on the outer surface of the rotor, namely intake port one, intake port two, and intake port three. The exhaust channel has three exhaust ports on the outer surface of the rotor, namely exhaust port one, exhaust port two, and exhaust port three. The stator has three intake channels, namely intake channel one, intake channel two, and intake channel three, and three exhaust channels, namely exhaust channel two, exhaust channel one, and exhaust channel three. The openings of intake channels one, two, and three on the inner wall of the stator are intake port one, intake port two, and intake port three, respectively. The openings of exhaust channels one, two, and three on the inner wall of the stator are exhaust port one, exhaust port two, and exhaust port three, respectively.

[0006] Intake port 1, intake port 2, intake port 3, inlet port 1, inlet port 2, and inlet port 3 are located on the same cross section, while exhaust port 1, exhaust port 2, exhaust port 3, outlet port 1, outlet port 2, and outlet port 3 are located on another cross section.

[0007] The air pump inlet is connected to the second air intake channel, and the air pump outlet is connected to the first air outlet channel; both the first air intake channel and the second air outlet channel are connected to the air outside the stator; the third air intake channel and the third air outlet channel are connected in parallel to the combined channel.

[0008] When the rotor is in state one, intake port one is connected to intake channel one, intake port two is connected to intake channel two, exhaust port two is connected to exhaust channel one, exhaust port three is connected to exhaust channel three, and intake port three and exhaust port one are both blocked by the inner wall of the stator.

[0009] When the rotor rotates clockwise by angle a from state one to state two, intake port one is connected to intake channel two, intake port three is connected to intake channel three, exhaust port one is connected to exhaust channel one, exhaust port two is connected to exhaust channel two, and intake port two and exhaust port three are both blocked by the inner wall of the stator.

[0010] The above-mentioned intake and exhaust device based on a single air pump rotates the rotor in the following manner: from state one, the rotor rotates clockwise by an angle 'a' to state two, and then the rotor rotates counterclockwise by an angle 'a' back to state one.

[0011] The above-mentioned intake and exhaust device based on a single air pump has the following central angles: intake port 1 and intake port 2 = intake port 1 and intake port 2 = exhaust port 1 and exhaust port 2 = exhaust port 1 and exhaust port 2 = exhaust port 1 and exhaust port 2 = a.

[0012] In state one, the central angle between the third intake port and the third inlet port is a; in state two, the central angle between the third outlet port and the third exhaust port is a.

[0013] In the aforementioned single-pump-based intake and exhaust device, 45°≤a≤135°. Preferably, a=90°. The smaller the angle a, the smaller the rotor inertia, and the faster the intake / exhaust switching speed.

[0014] The aforementioned intake and exhaust device based on a single air pump has a motor as its driving device. The motor housing is fixed on the stator or a housing fixedly connected to the stator, and the motor shaft is connected to the rotor.

[0015] In the above-mentioned single-pump-based intake and exhaust device, in state one, intake port one and intake port two are radially opposite to air inlet one and air inlet two, respectively, intake port three is radially offset from air inlet three, exhaust port two and exhaust port three are radially opposite to air outlet one and air outlet three, respectively, and exhaust port one is radially offset from air outlet two.

[0016] In state two, intake port one and intake port three are radially opposite to intake port two and intake port three, respectively, while intake port two and intake port one are radially offset. Exhaust port one and exhaust port two are radially opposite to exhaust port one and exhaust port two, respectively, while exhaust port three and exhaust port three are radially offset.

[0017] The aforementioned single-pump-based intake and exhaust device has an intake channel and three intake channels located on the same cross section; and an exhaust channel and three exhaust channels located on another cross section.

[0018] The suction and exhaust method based on a single air pump, implemented using the aforementioned suction and exhaust device, achieves suction and exhaust through the reciprocating rotation of the rotor relative to the stator. The outer circumference of the rotor slides against the inner wall of the stator, and the rotor has suction channels and exhaust channels. The suction channel has three suction ports located on the outer surface of the rotor, namely suction port one, suction port two, and suction port three, and the exhaust channel has three exhaust ports located on the outer surface of the rotor, namely exhaust port one, exhaust port two, and exhaust port three. The stator has three air inlet channels, namely air inlet channel one, air inlet channel two, and air inlet channel three, and three air outlet channels, namely exhaust channel one, exhaust channel two, and exhaust channel three. The openings of air inlet channels one, two, and three on the inner wall of the stator are air inlet one, air inlet two, and air inlet three, respectively, and the openings of air outlet channels one, two, and three on the inner wall of the stator are air outlet one, air outlet two, and air outlet three, respectively.

[0019] The rotor rotates back and forth as follows: from state one, the rotor rotates clockwise by an angle 'a' to state two, and then the rotor rotates counterclockwise by an angle 'a' back to state one.

[0020] When the rotor is in state one, the air pump works. The air outside the stator enters the intake channel through intake channel one and intake port one, then enters the air pump through intake port two and intake channel two. After being discharged from the air pump, it enters the exhaust channel through exhaust channel one and exhaust port two, and then is discharged through exhaust port three and exhaust channel three and combined channel.

[0021] When the rotor is in state two, the air pump works. The gas enters the intake channel from the combined channel, through intake channel three, and intake port three. Then it enters the air pump through intake port one and intake channel two. After being discharged from the air pump, it enters the exhaust channel through exhaust channel one and exhaust port one, and then is discharged to the outside of the stator through exhaust port two and exhaust channel two.

[0022] The beneficial effects of this utility model are:

[0023] In this invention, the reciprocating rotation of the rotor relative to the stator is employed, and corresponding air intake, suction, exhaust, and discharge channels are provided on the stator and rotor, realizing the switching of intake and exhaust in the combined channel. Only one unidirectional air pump is used; when the unidirectional air pump is working, its inlet is always intake (suction) and its outlet is always exhaust (exhaust), i.e., unidirectional intake and unidirectional exhaust. The motor drives the rotor to reciprocate, and the air pump drives the combined channel to switch between intake and exhaust.

[0024] The rotor has only two states, namely state one and state two, and it rotates and switches between the two states repeatedly. The reciprocating rotation frequency of the rotor can reach 30Hz.

[0025] The rotor is driven by a motor. During the rotation, the rotor will not rub or collide with other parts and will not wear out. There is basically no mechanical noise during the switching process between state one and state two. At the same time, the rotation of the rotor forms the switching between exhaust and intake, which is faster and more efficient than the linear motion of the solenoid valve core.

[0026] The rotor and stator are circumferentially sealed, resulting in excellent overall air circuit sealing, enabling high gas flow, high wind speed, and low air pressure loss.

[0027] The intake channel and three intake channels are located on the same cross section; the exhaust channel and three exhaust channels are located on another cross section, which further reduces wind resistance and pressure loss, while the rotor and stator are easy to process. Attached Figure Description

[0028] Figure 1 , 2 These are schematic diagrams of the structure in state one and state two of Example 1.

[0029] Figure 3 , 4 These are the structural principle diagrams of Embodiment 1 in State 1 and State 2, respectively.

[0030] Figure 5 , 6 These are schematic diagrams of Embodiment 2 in State 1 and State 2, respectively.

[0031] Figure 7 This is a structural diagram of Example 3.

[0032] Figure 8 This is a structural diagram of Example 3 (with part of the shell removed).

[0033] In the diagram, rotor 1,

[0034] Inhalation channel 100, Inhalation port 11, Inhalation port 2 12, Inhalation port 3 13.

[0035] Exhaust passage 200, exhaust port 1 21, exhaust port 2 22, exhaust port 3 23.

[0036] Stator 3,

[0037] Air intake channel 1 (31), air intake channel 2 (32), air intake channel 3 (33), air inlet 1 (51), air inlet 2 (52), air inlet 3 (53)

[0038] Air outlet 1: 41; Air outlet 2: 42; Air outlet 3: 43. Air outlet 1: 61; Air outlet 2: 62; Air outlet 3: 63.

[0039] Joint Channel 39,

[0040] Air pump 7, inlet 71, outlet 72, motor 8, housing 9. Detailed Implementation

[0041] Example 1:

[0042] For suction and exhaust devices based on a single air pump, see [link / reference]. Figure 1 , 2 It mainly includes a rotor 1, a stator 3, an air pump 7, and a motor 8. The outer casing of the motor 8 is fixed on a housing 9 that is fixedly connected to the upper end of the stator. The motor shaft is connected to the rotor 1, driving the rotor 1 to reciprocate counterclockwise and clockwise relative to the stator 3 around the axis.

[0043] The outer circumference of the rotor slides against the inner wall of the stator, and the rotor 1 has an intake channel 100 and an exhaust channel 200.

[0044] The intake passage 100 has three intake ports located on the outer surface of the rotor, namely intake port 11, intake port 22, and intake port 313. The exhaust passage 200 has three exhaust ports located on the outer surface of the rotor, namely exhaust port 121, exhaust port 22, and exhaust port 323.

[0045] The stator 3 has three air intake channels, namely air intake channel 1 31, air intake channel 2 32, and air intake channel 3 33, and three air outlet channels, namely air outlet channel 1 41, air outlet channel 2 42, and air outlet channel 3 43.

[0046] See Figure 3 , 4 The openings of intake channels 1 (31), 2 (32), and 3 (33) on the inner wall of the stator are intake port 1 (51), intake port 2 (52), and intake port 3 (53), respectively. The openings of exhaust channels 1 (41), 2 (42), and 3 (43) on the inner wall of the stator are exhaust port 1 (61), exhaust port 2 (62), and exhaust port 3 (63), respectively. Intake ports 1 (11), 2 (12), and 3 (13) are arranged in a clockwise direction, and exhaust ports 1 (21), 2 (22), and 3 (23) are arranged in a clockwise direction. Intake ports 1 (51), 2 (52), and 3 (53) are arranged in a clockwise direction, and exhaust ports 1 (61), 2 (62), and 3 (63) are arranged in a clockwise direction.

[0047] The intake channel and three intake channels are located on the same cross section; the exhaust channel and three exhaust channels are located on another cross section. Intake port 11, intake port 22, intake port 313, intake port 151, intake port 252, and intake port 353 are located on the same cross section, while exhaust port 121, exhaust port 22, exhaust port 323, exhaust port 161, exhaust port 262, and exhaust port 363 are located on another cross section.

[0048] The inlet 71 of the air pump 7 is connected to the opening of the second air intake channel 32 on the outer wall of the stator, and the outlet 72 of the air pump is connected to the opening of the first air outlet channel 41 on the outer wall of the stator. Both the first air intake channel and the second air outlet channel are connected to the air outside the stator; the third air intake channel 33 and the third air outlet channel 43 are connected in parallel to the combined channel 39.

[0049] See Figure 1 , 3 When the rotor is in state one, intake port 11 is connected to intake channel 31, intake port 2 12 is connected to intake channel 2 32, exhaust port 2 22 is connected to exhaust channel 41, exhaust port 3 23 is connected to exhaust channel 3 43, and intake port 3 13 and exhaust port 1 21 are both blocked by the inner wall of the stator.

[0050] When the rotor rotates clockwise by angle 'a' from state one to state two, see [reference needed]. Figure 2 , 4 Intake port 11 is connected to intake channel 2 32, intake port 3 13 is connected to intake channel 3 33, exhaust port 1 21 is connected to exhaust channel 1 41, exhaust port 2 22 is connected to exhaust channel 2 42, and intake port 2 12 and exhaust port 3 23 are both blocked by the inner wall of the stator.

[0051] In state one, intake port 11 and intake port 2 12 are radially opposite to intake port 1 51 and intake port 2 52, respectively. Intake port 3 13 and intake port 3 53 are radially offset. Exhaust port 2 22 and exhaust port 3 23 are radially opposite to exhaust port 1 61 and exhaust port 3 63, respectively. Exhaust port 1 21 and exhaust port 2 62 are radially offset.

[0052] When the rotor is in state one, the air pump operates. Air enters the intake channel through intake channel 1 31 and intake port 11, then enters the air pump through intake port 2 12 and intake channel 2 32. After being discharged from the air pump, air enters the exhaust channel through exhaust channel 1 41 and exhaust port 2 22, and is then discharged through exhaust port 3 23, exhaust channel 3 43, and combined channel 39. See the gas flow direction. Figure 1 , 3 As indicated by the middle arrow.

[0053] In state two, intake port 11 and intake port 3 13 are radially opposite to intake port 2 52 and intake port 3 53, respectively; intake port 2 12 is radially offset from intake port 1 51; exhaust port 1 21 and exhaust port 2 22 are radially opposite to exhaust port 1 61 and exhaust port 2 62, respectively; and exhaust port 3 23 is radially offset from exhaust port 3 63.

[0054] When the rotor is in state two, the air pump operates. Gas enters the intake channel from the combined channel 39, through the intake channel 33, and the suction port 313, then enters the air pump through the suction port 11 and the intake channel 2 32. After being discharged from the air pump, gas enters the exhaust channel through the exhaust channel 1 41 and the exhaust port 1 21, and is then discharged through the exhaust port 2 22 and the exhaust channel 2 42. See [reference needed] for the gas flow direction. Figure 2 , 4 As indicated by the middle arrow.

[0055] The central angle between intake port 11 and intake port 22 is equal to the central angle between intake port 11 and intake port 22, the central angle between exhaust port 11 and exhaust port 22, and the central angle between exhaust port 11 and exhaust port 22. In state one, the central angle between intake port 313 and intake port 353 is equal to a. In state two, the central angle between exhaust port 363 and exhaust port 323 is equal to a. 45° ≤ a ≤ 135°.

[0056] The rotor rotates back and forth as follows: from state one, the rotor rotates clockwise by an angle 'a' to state two, and then the rotor rotates counterclockwise by an angle 'a' back to state one.

[0057] Example 2:

[0058] See Figure 5 , 6 The main difference between the single-pump-based intake and exhaust device shown and Example 1 is that a = 90°.

[0059] Example 3:

[0060] See Figure 7 , 8 The diagram shown is a structural diagram of a single-pump-based intake and exhaust device.

[0061] The scope of protection of this patent includes, but is not limited to, the above-described embodiments. The scope of protection of this patent is determined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this patent.

Claims

1. A suction and exhaust device based on a single air pump, characterized in that: The rotor (1) has a stator (3) and reciprocates about its axis relative to the stator (3) under the drive of a drive device. The outer circumference of the rotor (1) is slidably fitted with the inner wall of the stator (3). The rotor (1) has an intake channel (100) and an exhaust channel (200). The intake channel (100) has three intake ports located on the outer surface of the rotor, namely intake port one (11), intake port two (12), and intake port three (13). The exhaust channel (200) has three exhaust ports located on the outer surface of the rotor, namely exhaust port one (21), exhaust port two (22), and exhaust port three (23). The stator (3) has three intake ports. The air passages are the first air intake passage (31), the second air intake passage (32), and the third air intake passage (33) and the three air outlet passages are the second air outlet passage (42), the first air outlet passage (41), and the third air outlet passage (43); the openings of the first air intake passage (31), the second air intake passage (32), and the third air intake passage (33) on the inner wall of the stator are the first air intake passage (51), the second air intake passage (52), and the third air intake passage (53), respectively; the openings of the first air outlet passage (41), the second air outlet passage (42), and the third air outlet passage (43) on the inner wall of the stator are the first air outlet passage (61), the second air outlet passage (62), and the third air outlet passage (63), respectively. Intake port 1 (11), intake port 2 (12), intake port 3 (13), inlet port 1 (51), inlet port 2 (52), and inlet port 3 (53) are located on the same cross section, while exhaust port 1 (21), exhaust port 2 (22), exhaust port 3 (23), outlet port 1 (61), outlet port 2 (62), and outlet port 3 (63) are located on another cross section; The inlet (71) of the air pump (7) is connected to the second air intake channel (32), and the outlet (72) of the air pump (7) is connected to the first air outlet channel (41); the first air intake channel (31) and the second air outlet channel (42) are both connected to the air outside the stator; the third air intake channel (33) and the third air outlet channel (43) are connected in parallel to the combined channel (39); When the rotor (1) is in state one, the first intake port (11) is connected to the first intake channel (31), the second intake port (12) is connected to the second intake channel (32), the second exhaust port (22) is connected to the first exhaust channel (41), the third exhaust port (23) is connected to the third exhaust channel (43), and the third intake port (13) and the first exhaust port (21) are both blocked by the inner wall of the stator; When the rotor (1) rotates clockwise by an angle a from state one to state two, the first intake port (11) is connected to the second intake channel (32), the third intake port (13) is connected to the third intake channel (33), the first exhaust port (21) is connected to the first exhaust channel (41), the second exhaust port (22) is connected to the second exhaust channel (42), and the second intake port (12) and the third exhaust port (23) are both blocked by the inner wall of the stator.

2. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: air intake The central angle between inlet 1 (11) and inlet 2 (12) = the central angle between inlet 1 (51) and inlet 2 (52) = the central angle between outlet 1 (21) and outlet 2 (22) = the central angle between outlet 1 (61) and outlet 2 (62) = a; In state one, the central angle between the intake port three (13) and the inlet port three (53) is a; in state two, the central angle between the outlet port three (63) and the exhaust port three (23) is a.

3. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: 45°≤a≤135°。 4. The intake and exhaust device based on a single air pump as described in claim 3, characterized in that: a=90°。 5. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: The driving device is a motor, the motor housing is fixed on the stator (3) or a housing fixedly connected to the stator (3), and the motor shaft is connected to the rotor (1).

6. The intake and exhaust device based on a single air pump as described in claim 5, characterized in that: The motor is a servo motor.

7. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: In state one, intake port one (11) and intake port two (12) are radially opposite to intake port one (51) and intake port two (52), respectively. Intake port three (13) and intake port three (53) are radially opposite. Exhaust port two (22) and exhaust port three (23) are radially opposite to exhaust port one (61) and exhaust port three (63), respectively. Exhaust port one (21) and exhaust port two (62) are radially opposite. In state two, intake port one (11) and intake port three (13) are radially opposite to intake port two (52) and intake port three (53), respectively. Intake port two (12) and intake port one (51) are radially opposite. Exhaust port one (21) and exhaust port two (22) are radially opposite to exhaust port one (61) and exhaust port two (62), respectively. Exhaust port three (23) and exhaust port three (63) are radially opposite.

8. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: The intake passage (100) and three intake passages are located on the same cross section; the exhaust passage (200) and three exhaust passages are located on another cross section.

9. The intake and exhaust device based on a single air pump as described in claim 1, characterized in that: The rotor (1) rotates back and forth as follows: from state one, the rotor (1) rotates clockwise by an angle a to state two, and then the rotor (1) rotates counterclockwise by an angle a to state one.

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