Dual channel alcohol pump

Abstract

The present application discloses a dual-channel alcohol delivery pump, comprising a shell, a driving part, a connecting part, a rotor assembly and an end cover, wherein a partition plate 1 is arranged in the shell, the partition plate 1 divides the shell into a channel 1 and a receiving chamber, and the end cover is arranged at one end of the shell; the driving part is arranged in the receiving chamber, the driving part comprises a motor stator, a motor rotor and a transmission shaft, the motor stator and the motor rotor are separated by a partition plate 2, a channel 2 is formed in the partition plate 2, and the motor rotor is placed in the channel 2; the connecting part is used to connect the shell and the end cover, and at least one flow channel 1 and at least one flow channel 2 connecting the channel 1 and the channel 2 are respectively arranged on the connecting part; the rotor assembly is arranged in the end cover, the transmission shaft connects the motor rotor and the rotor assembly, the driving part drives the rotor assembly to drive the medium from the flow channel 1 into the channel 1 and the channel 2 and to be discharged through the flow channel 2, which can increase the heat dissipation area of ​​the motor stator and the motor rotor, thereby quickly taking away the heat of the motor stator and the motor rotor, and improving the heat dissipation effect.

Description

Technical Field

[0001] The present application relates to the technical field of oil delivery pumps, and in particular to a dual-channel alcohol delivery pump. Background Art

[0002] Traditional oil pumps mostly use cycloidal gear pumps. When working, the motor drives the inner rotor to engage the outer rotor. The working volume on one side gradually increases to form a low-pressure chamber to suck the medium in, and the working volume on the other side gradually decreases to form a high-pressure chamber to squeeze the medium out. The motor rotor and motor stator will generate heat, and the accumulated heat will affect the motor, thereby affecting the normal operation of the oil pump.

[0003] The working medium of the existing oil pump can only contact part of the motor stator, so the heat dissipation effect is poor, and it is difficult to transport corrosive media (such as alcohol, etc.). Strengthening the seal is required, the stability is poor, and the corrosion of the seal causes leakage, which will cause short circuit damage to electronic components and affect the normal operation of the oil pump. Summary of the invention

[0004] The present application provides a dual-channel alcohol delivery pump to solve the problem of poor heat dissipation of the above oil pump and poor stability when delivering corrosive media, and adopts the following technical solutions:

[0005] A dual-channel alcohol delivery pump comprises a shell and an end cover, wherein a partition plate 1 is arranged in the shell, and the partition plate 1 divides the shell into a channel 1 and a receiving chamber, and the end cover is arranged at one end of the shell;

[0006] A driving part, the driving part is arranged in the accommodating cavity, the driving part comprises a motor stator, a motor rotor and a transmission shaft, a partition plate 2 is arranged between the motor stator and the motor rotor, a channel 2 is formed in the partition plate 2, and the motor rotor is placed in the channel 2;

[0007] A connecting portion, the connecting portion is used to connect the shell and the end cover, and the connecting portion is provided with at least one flow channel 1 connecting the channel 1 and the channel 2, and at least one flow channel 2 connecting the channel 1 and the channel 2;

[0008] The rotor assembly is arranged in the end cover, the transmission shaft connects the motor rotor and the rotor assembly, the flow channel 1 and the flow channel 2 are connected to the rotor assembly, the driving unit drives the rotor assembly to drive the medium from the flow channel 1 into the channel 1 and the channel 2 and to be discharged through the flow channel 2; the channel 1 and the channel 2 are two independent heat dissipation channels.

[0009] Preferably, the flow channel 1 includes at least one through hole 1 connected to the channel 1 and at least one through hole 2 connected to the channel 2, and the flow channel 2 includes at least one through hole 1 connected to the channel 1.

[0010] Further preferably, the through hole one includes an oil storage tank and an oil hole, the oil hole connects the channel one and the oil storage tank, and the oil storage tank connects the oil hole and the rotor assembly.

[0011] Preferably, the rotor assembly comprises an inner rotor and an outer rotor, wherein the inner rotor is eccentrically arranged inside the outer rotor, dividing the outer rotor into an oil suction chamber and an oil pressure chamber.

[0012] Further preferably, the flow channel 1 is connected to the oil suction chamber, and the flow channel 2 is connected to the oil pressure chamber.

[0013] Further preferably, the connecting portion is further provided with an axial hole, the transmission shaft passes through the axial hole to be rotatably connected with the end cover, and the inner rotor is arranged on the transmission shaft.

[0014] Preferably, the end cover is provided with a cavity for placing the rotor assembly, and an oil inlet and an oil outlet communicating with the cavity.

[0015] Preferably, it also includes a circuit board, which is arranged in the accommodating cavity, and a support plate connecting the partition plate 1 and the partition plate 2 is provided between the circuit board and the driving part, and the support plate separates the circuit board from the driving part.

[0016] Further preferably, the circuit board is electrically connected to the driving unit.

[0017] The beneficial effects of this application are:

[0018] The drive unit drives the rotor assembly to extract the medium through the oil inlet. The medium enters channel one and channel two through flow channel one, which can cool the motor stator and motor rotor. The medium is discharged from channel one and channel two from flow channel two or discharged from channel two through the shaft hole, taking away the heat of the drive unit to prevent heat accumulation from causing excessive temperature to damage the motor. It has good stability and safety and can transport corrosive media. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the present application;

[0020] Figure 2 is a half-section schematic diagram of the present application;

[0021] Figure 3 is a bottom view of the present application;

[0022] Figure 4 It is a three-dimensional schematic diagram of the end cover of the present application.

[0023] In the figure:

[0024] 1. housing, 10. accommodating chamber;

[0025] 2. Connecting part, 21A, flow channel 1, 21B, flow channel 2, 211, through hole 1, 212, through hole 2, 2121, oil storage tank, 2122, oil hole, 22, shaft hole;

[0026] 3. end cover, 30. cavity, 31. oil inlet, 32. oil outlet;

[0027] 41. Motor stator, 42. Motor rotor, 43. Transmission shaft;

[0028] 5. rotor assembly, 51. outer rotor, 52. inner rotor, 53. oil suction chamber, 54. oil pressure chamber;

[0029] 6. Partition 1, 60. Channel 1, 7. Partition 2, 70. Channel 2, 8. Circuit board, 9. Support plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0031] See also Figures 1 to 4 , further illustrating the present application, a dual-channel alcohol delivery pump comprises a housing 1 and an end cover 3, wherein a partition 6 is provided in the housing 1, and the partition 6 divides the housing 1 into a channel 60 and a receiving chamber 10, and the end cover 3 is provided at one end of the housing 1;

[0032] A driving part, the driving part is arranged in the accommodating chamber 10, the driving part comprises a motor stator 41, a motor rotor 42 and a transmission shaft 43, a partition plate 2 7 is arranged between the motor stator 41 and the motor rotor 42, a channel 2 70 is formed in the partition plate 2 7, and the motor rotor 42 is placed in the channel 2 70;

[0033] A connecting portion 2, the connecting portion 2 is used to connect the housing 1 and the end cover 3, and the connecting portion 2 is provided with at least one flow channel 1 21A and at least one flow channel 2 21B respectively connected to the channel 1 60 and the channel 2 70. In this embodiment, the flow channel 1 21A and the flow channel 2 21B are both one;

[0034] The rotor assembly is arranged in the end cover 3, the transmission shaft 43 connects the motor rotor 42 and the rotor assembly 5, the flow channel 1 21A and the flow channel 2 21B are connected to the rotor assembly 5, and the driving unit drives the rotor assembly 5 to drive the medium through the flow channel 1 21A into the channel 1 60 and the channel 2 70 and is discharged through the flow channel 2 21B.

[0035] Compared with the prior art, the channel 1 60 and the channel 2 70 can increase the heat dissipation area with the motor stator 41. The motor rotor 42 is arranged in the channel 2 70 and is in direct contact with the medium. When working, the heat generated by the driving part can be quickly and effectively discharged and transferred to the medium to dissipate heat and cool it, thereby preventing the driving part from overheating and damage. Specifically, the partition 1 6 and the partition 2 7 can be connected to the shell 1 and the connecting part 2 by welding. The partition 1 6 and the partition 2 7 respectively isolate the motor stator 41 from the channel 1 60 and the channel 2 70. When transporting some corrosive media, this structure can protect the motor stator 41 and other electronic components in the corrosive medium without the need for seals, so it has high stability and safety.

[0036] Combination Figure 2 and Figure 3 In this embodiment, the flow channel 1 21A includes at least one through hole 1 211 and at least one through hole 212, and the flow channel 2 21B includes at least one through hole 1 211′; the through hole 1 211 is connected to the channel 1 60, and the through hole 212 is connected to the channel 2 70; wherein the through hole 1 211 (211′) includes an oil storage tank 2121 (2121′) and an oil hole 2122 (2122′), and the oil hole 2122 (212 2′) connects the oil storage tank 2121 (2121′) and the channel 1 60, the oil storage tank 2121 connects the oil hole 2122 (2122′) and the rotor assembly 5, wherein the through hole 1 211 (211′) and the through hole 212 are both one; in this embodiment, the through hole 212 is connected to the rotor assembly 5 by connecting to the oil storage tank 2121, of course, the through hole 212 can also be directly connected to the rotor assembly 5.

[0037] Combination Figure 4 The rotor assembly 5 includes an inner rotor 52 and an outer rotor 51. The inner rotor 52 is eccentrically arranged in the outer rotor 51. The inner rotor 52 is meshed with the outer rotor 51. The inner rotor 52 divides the outer rotor 51 into an oil suction chamber 53 and an oil pressure chamber 54. The flow channel 1 21A is connected to the oil suction chamber 53, and the flow channel 2 21B is connected to the oil pressure chamber 54.

[0038] When the driving part drives the rotor assembly 5 to rotate, the oil suction chamber 53 can absorb the medium, and the inner rotor 52 transports the medium in the oil suction chamber 53 into the channel 1 60 through the through hole 1 211 to dissipate heat and cool the motor stator 41, and transports it into the channel 2 70 through the through hole 212 to dissipate heat for the motor rotor 42 and lubricate the transmission shaft 43; the oil pressure chamber 54 can discharge the medium, and the medium entering the channel 1 60 will enter the oil pressure chamber 54 through the through hole 1 211′, thereby ensuring the circulation of the medium in the channel 1 60; the medium entering the channel 2 70 fills the channel 2 70 and wraps the motor rotor 42, and can dissipate heat for the motor rotor 42 and the motor stator 41 at the same time, and the medium in the channel 2 70 flows to the rotor assembly 5 through the axial hole 22 opened on the connecting part 2, so that the medium in the channel 2 70 can circulate and lubricate the transmission shaft 43 at the same time.

[0039] In some embodiments, the flow channel 1 21A may include at least one through hole 1 211 connected to the channel 1 60, and the flow channel 2 21B may include at least one through hole 1 211′ connected to the channel 1 60 and at least one through hole 212′ connected to the channel 2 70. This method has the opposite flow direction to the above structure.

[0040] In some embodiments, the structure of the flow channel 1 21A corresponds to that of the flow channel 2 21B, and the flow channel 1 21A and the flow channel 2 21B may also both include at least one through hole 1 211 (211′) connected to the channel 1 60 and at least one through hole 212 (212′) connected to the channel 2 70. At this time, the oil suction chamber 53 absorbs the medium into the channel 1 and the channel 2 through the through hole 1 and the through hole 2 respectively, and the medium in the channel 1 60 enters the oil pressure chamber 54 through the channel 1 211′ to discharge the medium, and the medium in the channel 2 70 enters the oil pressure chamber 54 through the channel 2 212′ (not shown) to be discharged, thereby allowing the medium in the channel 1 60 and the channel 2 70 to circulate and dissipate heat.

[0041] Combination Figure 2The end cover 3 is also provided with a cavity 30, an oil inlet 31 and an oil outlet 32. The cavity 30 is provided on a side close to the connecting portion 2. The cavity 30 is used to place the rotor assembly 5. The oil inlet 31 and the oil outlet 32 ​​are provided on a side opposite to the cavity 30. The oil inlet 31 and the oil outlet 32 ​​are respectively connected to the cavity 30, wherein the oil inlet 31 is correspondingly connected to the oil suction chamber 53, and the oil outlet 32 ​​is correspondingly connected to the oil pressure chamber 54. The medium enters the oil suction chamber 53 through the oil inlet 31, and the medium entering the oil pressure chamber 54 will be discharged through the oil outlet 32.

[0042] Combination Figure 3 The connecting portion 2 is provided with an axial hole 22, and the transmission shaft 43 passes through the axial hole 22 to respectively rotatably connect the connecting portion 2 and the end cover 3. The transmission shaft 43 is clearance-matched with the axial hole 22, so that the medium in the channel 2 70 flows to the rotor assembly 5 through the axial hole 22. In this embodiment, a bearing is provided for rotational connection to reduce the wear of the transmission shaft 43. The inner rotor 52 is provided on the transmission shaft 43, and the driving portion drives the inner rotor 52 to rotate in the outer rotor 51 through the transmission shaft 43. In some embodiments, a bearing rotational connection may also be provided.

[0043] Combination Figure 2 , and also includes a circuit board 8, which is arranged in the accommodating cavity 10. A support plate 9 connecting the partition one 6 and the partition two 7 is provided between the circuit board 8 and the driving part, and the support plate 9 separates the circuit board 8 from the driving part. During operation, the medium enters the channel one 60 and the channel two 70, and the support plate 9 and the partition two 7 separate the channel two 70 from the circuit board 8. Specifically, welding can be adopted between the support plate 9 and the partition one 6, so that the medium will not affect the circuit board 8, and the circuit board 8 can be prevented from contacting and corroding the circuit board 8.

[0044] The circuit board 8 is electrically connected to the motor stator 41 , and controls the motor rotor 42 through the motor stator 41 to drive the rotor assembly 5 to rotate.

[0045] The dual-channel alcohol delivery pump described in the present application is suitable for delivering alcohol or other corrosive cooling media, and can be used in working scenarios such as cooling charging piles.

[0046] Of course, fuel media such as fuel oil can also be transported, which is suitable for supplying fuel to the engine.

Claims

1. Dual-channel alcohol delivery pump, characterized by: It comprises a shell and an end cover, wherein a partition plate 1 is arranged inside the shell, and the partition plate 1 divides the shell into a channel 1 and a receiving cavity, and the end cover is arranged at one end of the shell; A driving part, the driving part is arranged in the accommodating cavity, the driving part comprises a motor stator, a motor rotor and a transmission shaft, a partition plate 2 is arranged between the motor stator and the motor rotor, a channel 2 is formed in the partition plate 2, and the motor rotor is placed in the channel 2; A connecting portion, the connecting portion is used to connect the shell and the end cover, and the connecting portion is provided with at least one flow channel 1 connecting the channel 1 and the channel 2, and at least one flow channel 2 connecting the channel 1 and the channel 2; The rotor assembly is arranged in the end cover, the transmission shaft connects the motor rotor and the rotor assembly, the flow channel 1 and the flow channel 2 are connected to the rotor assembly, the driving unit drives the rotor assembly to drive the medium from the flow channel 1 into the channel 1 and the channel 2 and to be discharged through the flow channel 2; the channel 1 and the channel 2 are two independent heat dissipation channels.

2. The dual-channel alcohol delivery pump according to claim 1, characterized in that: The flow channel 1 includes at least one through hole 1 connected to the channel 1 and at least one through hole 2 connected to the channel 2, and the flow channel 2 includes at least one through hole 1 connected to the channel 1.

3. The dual-channel alcohol delivery pump according to claim 2, characterized in that: The through hole 1 includes an oil storage tank and an oil hole, the oil hole connects the channel 1 and the oil storage tank, and the oil storage tank connects the oil hole and the rotor assembly.

4. The dual-channel alcohol delivery pump according to claim 1, characterized in that: The rotor assembly comprises an inner rotor and an outer rotor. The inner rotor is eccentrically arranged in the outer rotor, dividing the outer rotor into an oil suction chamber and an oil pressure chamber.

5. The dual-channel alcohol delivery pump according to claim 4, characterized in that: The flow channel 1 is connected to the oil suction chamber, and the flow channel 2 is connected to the oil pressure chamber.

6. The dual-channel alcohol delivery pump according to claim 4, characterized in that: The connecting portion is also provided with an axial hole, the transmission shaft passes through the axial hole and is rotatably connected with the end cover, and the inner rotor is arranged on the transmission shaft.

7. The dual-channel alcohol delivery pump according to claim 1, characterized in that: The end cover is provided with a cavity for placing the rotor assembly, and an oil inlet and an oil outlet communicating with the cavity.

8. The dual-channel alcohol delivery pump according to claim 1, characterized in that: It also includes a circuit board, which is arranged in the accommodating cavity. A support plate connecting the partition plate 1 and the partition plate 2 is provided between the circuit board and the driving part, and the support plate separates the circuit board from the driving part.

9. The dual-channel alcohol delivery pump according to claim 8, characterized in that: The circuit board is electrically connected to the driving unit.

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