A new energy vehicle liquid oil pump control device

By employing a drive ring and movable blades in the liquid oil pump, combined with pressure boosting, feedback, and regulation components, the problem of blade damage under high pressure was solved, achieving pump stability and effective flow control.

CN121382632BActive Publication Date: 2026-04-17DAFENG HAINA MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DAFENG HAINA MACHINERY
Filing Date
2025-11-03
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The blades of existing mechanical variable displacement pumps are easily damaged under high pressure, affecting the normal operation of the pump.

Method used

The design employs a drive ring and movable blades, combined with a pressure boosting assembly, a feedback assembly, and a regulating assembly. By adjusting the pressure inside the suction chamber and reducing the speed of the drive ring, blade damage is prevented and pump stability is improved.

Benefits of technology

It effectively prevents blade damage, improves the working stability and flow discharge rate of the liquid pump, and reduces mechanical vibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of fluid machinery, and discloses a new energy vehicle liquid oil pump control device, which comprises a pump shell, a driving ring is rotationally and sealingly arranged between the inner walls of the two sides of the pump shell, a plurality of fixed blades are equidistantly fixed on the outer surface of the driving ring in the circumferential direction, a receiving cavity is formed in each of the plurality of fixed blades, and the plurality of receiving cavities are all correspondingly penetrated to one end of the fixed blade. The water flow in the pump shell can be pressurized and delivered from the water inlet cavity to the water suction cavity by the pressurizing assembly, and then the pressurized water flow is discharged from the water suction cavity to the drain pipe. In the pressurizing process, when the pressure in the water suction cavity is too high, the adjusting assembly is triggered to discharge the water flow in the water suction cavity to the chamber on one side, thereby reducing the pressure in the water suction cavity, preventing the fixed blade and the movable blade from being damaged due to excessive pressure, and driving the feedback assembly to work when the adjusting assembly is triggered, so that the pump works more stably.
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Description

Technical Field

[0001] This invention relates to the field of fluid machinery technology, and in particular to a liquid oil pump control device for new energy vehicles. Background Technology

[0002] A mechanical pump uses the principle of compression and discharge to draw liquid from a container. It is called a mechanical pump because it uses a mechanical method to periodically change the volume of the suction chamber inside the pump, so that the liquid in the container continuously enters the suction chamber through the pump's inlet, and is then discharged from the pump through the outlet after compression.

[0003] Currently, when mechanical variable displacement pumps are used, the water flow is drawn in by the blades inside the pump body. When the water flows into the pressure boosting chamber, a high pressure is generated. However, the rigidity of the blade pump is relatively small. If the pressure is too high and cannot be controlled, the blades can easily be damaged, affecting the normal operation of the pump. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a liquid oil pump control device for new energy vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a liquid oil pump control device for new energy vehicles, including a pump housing, a drive ring is rotatably sealed between the inner walls of the two sides of the pump housing, a plurality of fixed blades are fixed at equal intervals along the circumferential direction on the outer surface of the drive ring, a receiving cavity is opened inside the plurality of fixed blades, the plurality of receiving cavities are respectively connected to one end of the fixed blades, a pressure boosting component is provided inside the plurality of receiving cavities, and an adjustment component is provided inside the plurality of fixed blades;

[0006] An annular cavity extending to one side is formed between the inner walls of the drive ring. A feedback component is installed inside the annular cavity. The drive ring is eccentrically positioned inside the pump housing. A drain pipe is fixed near the edge on one side of the pump housing, and an inlet pipe is fixed near the edge on the other side of the pump housing.

[0007] Preferably, two fixed blades on one side of the drive ring form a compression chamber near the inner wall of the pump casing, and two fixed blades on the other side of the drive ring form a suction chamber away from the inner wall of the pump casing. One end of the drain pipe penetrates into the interior of the pump casing and communicates with the compression chamber, and one end of the inlet pipe penetrates into the interior of the pump casing and communicates with the inlet chamber.

[0008] Preferably, the booster assembly includes a movable blade, which is slidably sealed between the inner walls of the receiving cavity. One end of the movable blade extends to the outside of the fixed blade, and one end of the movable blade slides against the inner wall of the pump casing. A sliding opening is provided on one side of the inner wall of the receiving cavity, and multiple grid openings are equidistantly provided on one side of the inner wall of the receiving cavity near one edge. All the grid openings extend to the outside of the fixed blade.

[0009] Preferably, a constraint block is provided for sliding sealing between the inner walls on both sides of the sliding opening. The top of the constraint block is connected to the outer surface of the movable blade. Multiple grid openings are located on one side of the movable blade. A reciprocating spring is fixed on one side of the movable blade, and one end of the reciprocating spring is fixed to the inner bottom surface of the storage cavity.

[0010] Preferably, the feedback component includes multiple spring friction blocks, one end of which is fixed at equal intervals along the circumferential direction on the inner wall of the annular cavity. A fixed shaft is installed between the inner walls of the drive ring, one end of which slides through to the outside of the pump housing and is located on the side of the drain pipe. A hexagonal shaft is fixed to one end of the fixed shaft.

[0011] Preferably, a friction ring is fitted onto the outer surface of the fixed shaft. The friction ring is located inside the annular cavity. One side of the friction ring is protruding near the front and rear edges and is fixed to the inner wall of the pump housing. The other ends of the multiple spring friction blocks extend obliquely to the outside of the friction ring and are opposite to the outer surface of the friction ring. Guide holes are provided on the bottom surface of the multiple receiving cavities.

[0012] Preferably, the multiple guide holes are all curved in an arc shape and extend into the interior of the annular cavity. Push rods are slidably sealed between the inner walls of the multiple guide holes. One end of each push rod extends into the interior of the receiving cavity and is fixed to one end of the movable blade. The other end of each push rod extends into the interior of the annular cavity and is in contact with one inclined surface of the spring friction block.

[0013] Preferably, the adjustment assembly includes a contact rod, an adjustment cavity is provided inside the fixed blade, the adjustment cavity is located below the slide and near the end edge, an annular transition groove is provided inside the fixed blade, the annular transition groove is located between the slide and the adjustment cavity, and the contact rod is disposed inside the adjustment cavity.

[0014] Preferably, one end of the contact rod slides through the sliding port, and the inner wall of the annular transition groove slides and seals against the outer surface of the contact rod. The other end of the contact rod slides through the outer surface of the fixed blade. A movable plate is fixed to the outer surface of the contact rod. The movable plate is slidably disposed between the inner walls of the adjustment cavity. A compression spring is fixed to the top of the movable plate. The top of the compression spring is fixed to the inner wall of the adjustment cavity. A limit ring is fixed at the middle of the inner walls of the adjustment cavity. One side of the limit ring is opposite to one side of the movable plate.

[0015] Preferably, a flow channel is formed on one side of the inner wall of the receiving cavity, one end of which is opposite to multiple grid openings, and the other end of which extends into the interior of the annular transition groove. A side hole is formed on one side of the inner wall of the adjusting cavity, and the side hole is connected to the interior of the flow channel. Multiple bent through holes are formed at equal intervals along the circumferential direction on the other end of the contact rod. One end of each of the multiple bent through holes extends to the outer surface of the contact rod and is opposite to the annular transition groove. Multiple auxiliary channels are formed at equal intervals along the circumferential direction on the outer surface of the contact rod. Each of the multiple auxiliary channels is located above the bent through holes and is connected to the bent through holes.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, the pressure boosting component can pressurize the water flow inside the pump casing from the inlet chamber to the suction chamber, and then the pressurized water flow is discharged from the suction chamber to the drain pipe. During the pressurization process, when the pressure inside the suction chamber is too high, the regulating component will be triggered to discharge the water flow inside the suction chamber to one side of the chamber, thereby reducing the pressure inside the suction chamber and preventing the fixed blades and moving blades from being damaged by excessive pressure. When the regulating component is triggered, it will also drive the feedback component to work.

[0018] 2. When the booster assembly is working in this invention, since the drive ring is eccentrically set inside the pump casing, when the drive ring rotates, it can drive the movable blade to slide along the inner wall of the pump casing. When the liquid enters the inlet chamber inside the pump casing from the inlet pipe, the liquid is at normal pressure. However, as the movable blade moves and contracts, it squeezes the liquid inside the inlet chamber, thereby increasing the liquid pressure. When the movable blade rotates to the drain pipe, the squeezed liquid can be discharged from the drain pipe with a certain pressure.

[0019] 3. When the regulating component is working in this invention, when the pressure inside the water suction chamber exceeds the dangerous value, due to the excessive pressure inside the water suction chamber, the movable plate is pushed to the place where it fits against the inner wall of the regulating chamber. At this time, the auxiliary channel and the bent through hole are connected to the annular transition groove, increasing the discharge rate of the flow rate, thereby rapidly reducing the pressure inside the water suction chamber to avoid mechanical damage.

[0020] 4. When the feedback component of this invention is working, when the movable blade slides to the bottom of the receiving cavity, it will drive one end of the push rod to press the spring friction block against the outer surface of the friction ring. Through the mutual friction and contact between the spring friction block and the outer surface of the friction ring, frictional resistance can be generated on the friction ring, reducing the rotational speed of the drive ring. This slows down the pump's operation when the pressurized liquid is discharged from the suction chamber, thus improving the stability of the pump during operation. Attached Figure Description

[0021] Figure 1 This invention provides a front-view three-dimensional structural schematic diagram of a liquid oil pump control device for new energy vehicles;

[0022] Figure 2 This invention provides a side-section three-dimensional structural schematic diagram of a liquid oil pump control device for new energy vehicles;

[0023] Figure 3 This invention provides a three-dimensional cross-sectional view of another side of a liquid oil pump control device for new energy vehicles.

[0024] Figure 4 This invention provides a front-view three-dimensional structural diagram of the internal structure of a liquid oil pump control device for new energy vehicles;

[0025] Figure 5 This invention provides a cross-sectional three-dimensional structural diagram of the internal structure of a liquid oil pump control device for new energy vehicles;

[0026] Figure 6 For the present invention Figure 5 A magnified view of a portion of point A in the middle;

[0027] Figure 7 For the present invention Figure 5 A magnified view of a portion of point B in the middle;

[0028] Figure 8 For the present invention Figure 5 A magnified view of a portion of point C.

[0029] In the diagram: 1. Pump casing; 2. Hexagonal shaft; 3. Drain pipe; 4. Inlet pipe; 5. Drive ring; 6. Annular cavity; 7. Friction ring; 8. Spring friction block; 9. Fixed blade; 10. Receiving cavity; 11. Movable blade; 12. Push rod; 13. Grid opening; 14. Reciprocating spring; 15. Flow channel; 16. Slide opening; 17. Constraint block; 18. Adjustment cavity; 19. Side hole; 20. Annular transition groove; 21. Contact rod; 22. Movable plate; 23. Compression spring; 24. Limiting ring; 25. Bending through hole; 26. Auxiliary channel; 27. Guide hole; 28. Fixed shaft. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-8The present invention provides a technical solution: a liquid oil pump control device for new energy vehicles, including a pump housing 1, a drive ring 5 is rotatably sealed between the inner walls of the two sides of the pump housing 1, a plurality of fixed blades 9 are fixed at equal intervals along the circumferential direction on the outer surface of the drive ring 5, a receiving cavity 10 is opened inside the plurality of fixed blades 9, the plurality of receiving cavities 10 are respectively connected to one end of the fixed blades 9, a pressure boosting component is provided inside the plurality of receiving cavities 10, and an adjustment component is provided inside the plurality of fixed blades 9;

[0032] An annular cavity 6 extending to one side is formed between the inner walls of the drive ring 5. A feedback component is installed inside the annular cavity 6. The drive ring 5 is eccentrically positioned inside the pump housing 1. A drain pipe 3 is fixed near the edge on one side of the pump housing 1, and an inlet pipe 4 is fixed near the edge on the other side of the pump housing 1. Two fixed blades 9 on one side of the drive ring 5 form a compression cavity near the inner wall of the pump housing 1, and two fixed blades 9 on the other side of the drive ring 5 form a suction cavity away from the inner wall of the pump housing 1. One end of the drain pipe 3 extends into the interior of the pump housing 1 and communicates with the compression cavity, and one end of the inlet pipe 4 extends into the interior of the pump housing 1 and communicates with the inlet cavity.

[0033] The effect achieved is that the pressurization component can pressurize the water flow inside the pump casing 1 from the inlet chamber to the suction chamber, and then the pressurized water flow is discharged from the suction chamber to the drain pipe 3. During the pressurization process, when the pressure inside the suction chamber is too high, the regulating component will be triggered to discharge the water flow inside the suction chamber to one side of the chamber, thereby reducing the pressure inside the suction chamber and preventing the pressure from being too high and damaging the fixed blade 9 and the movable blade 11. When the regulating component is triggered, it will also drive the feedback component to work. Since the high-pressure water flow inside the suction chamber is released instantaneously after the liquid inside the pump casing 1 is pressurized and discharged, the large pressure drop will impact the rotating drive ring 5 and the fixed blade 9 and the movable blade 11, causing the pump to vibrate. When the feedback component works, when the pressure inside the suction chamber reaches its maximum, it will decelerate the fixed shaft 28, thereby reducing the speed of the drive ring 5. At this time, the pump becomes sluggish, thereby improving the stability of the pump when discharging high-pressure water.

[0034] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the booster assembly includes a movable blade 11, which is slidably sealed between the inner walls of the receiving cavity 10. One end of the movable blade 11 extends to the outside of the fixed blade 9, and one end of the movable blade 11 is slidably attached to the inner wall of the pump housing 1. A sliding opening 16 is provided on one side of the inner wall of the receiving cavity 10. Multiple grid openings 13 are equidistantly provided on one side of the inner wall of the receiving cavity 10 near one edge. The multiple grid openings 13 all extend to the outside of the fixed blade 9. A constraint block 17 is slidably sealed between the inner walls on both sides of the sliding opening 16. The top of the constraint block 17 is connected to the outer surface of the movable blade 11. The multiple grid openings 13 are located on one side of the movable blade 11. A reciprocating spring 14 is fixed on one side of the movable blade 11. One end of the reciprocating spring 14 is fixed to the inner bottom surface of the receiving cavity 10.

[0035] The effect achieved is that the hexagonal shaft 2 is driven to rotate by the external load, which in turn drives the fixed shaft 28 and the drive ring 5 to rotate. Since the drive ring 5 is eccentrically set inside the pump casing 1, when the drive ring 5 rotates, it can drive the movable blade 11 to slide along the inner wall of the pump casing 1. When the liquid enters the inlet chamber inside the pump casing 1 from the inlet pipe 4, the liquid is at normal pressure. However, as the movable blade 11 moves and contracts, it squeezes the liquid inside the inlet chamber, thereby increasing the liquid pressure. When the movable blade 11 rotates to the drain pipe 3, the squeezed liquid can be discharged from the drain pipe 3 with a certain pressure. Its working method is to compress and pressurize the liquid inside the chamber by changing the volume of the chamber formed by the movable blade 11 and the fixed blade 9.

[0036] like Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, the feedback assembly includes multiple spring friction blocks 8. One end of each spring friction block 8 is equidistantly fixed to the inner wall of the annular cavity 6 along the circumferential direction. A fixed shaft 28 is installed between the inner walls of the drive ring 5. One end of the fixed shaft 28 slides through to the outside of the pump housing 1 and is located on one side of the drain pipe 3. A hexagonal shaft 2 is fixed to one end of the fixed shaft 28. A friction ring 7 is fitted onto the outer surface of the fixed shaft 28. The friction ring 7 is located inside the annular cavity 6. One side of the friction ring 7 is convex near both the front and rear edges and is fixed to the inner wall of the pump housing 1. Multiple spring friction blocks The other end of each of the 8 extends obliquely to the outside of the friction ring 7 and is opposite to the outer surface of the friction ring 7. The bottom surface of each of the multiple storage cavities 10 is provided with a guide hole 27. The multiple guide holes 27 are all curved in an arc shape and penetrate into the interior of the annular cavity 6. Push rods 12 are slidably sealed between the inner walls of the multiple guide holes 27. One end of each of the multiple push rods 12 extends into the interior of the storage cavity 10 and is fixed to one end of the movable blade 11. The other end of each of the multiple push rods 12 extends into the interior of the annular cavity 6 and is in contact with one side of the inclined surface of the spring friction block 8.

[0037] The effect achieved is that when the movable blade 11 slides towards the bottom of the receiving cavity 10, it will drive one end of the push rod 12 to press the spring friction block 8 against the outer surface of the friction ring 7. Through the mutual friction and contact between the spring friction block 8 and the outer surface of the friction ring 7, frictional resistance can be generated on the friction ring 7, reducing the rotational speed of the drive ring 5, and making the pump work more slow when the pressurized liquid is discharged from the suction cavity, which helps to improve the stability of the pump during operation.

[0038] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the adjustment assembly includes a contact rod 21. An adjustment cavity 18 is formed inside the fixed blade 9, located below the slide opening 16 and near its end edge. An annular transition groove 20 is formed inside the fixed blade 9, located between the slide opening 16 and the adjustment cavity 18. The contact rod 21 is disposed inside the adjustment cavity 18. One end of the contact rod 21 slides through the slide opening 16, and the inner wall of the annular transition groove 20 slides and seals against the outer surface of the contact rod 21. The other end of the contact rod 21 slides through the outer surface of the fixed blade 9. A movable plate 22 is fixed to the outer surface of the contact rod 21, and the movable plate 22 is slidably disposed between the inner walls of the adjustment cavity 18. A compression spring 23 is fixed to the top of the movable plate 22, and the top of the compression spring 23 is fixed to the inner wall of the adjustment cavity 18. Above, a limiting ring 24 is fixed at the middle between the inner walls of the adjusting cavity 18. One side of the limiting ring 24 is opposite to one side of the movable plate 22. A flow channel 15 is opened on one side of the inner wall of the receiving cavity 10. One end of the flow channel 15 is opposite to multiple grid openings 13, and the other end of the flow channel 15 penetrates into the interior of the annular transition groove 20. A side hole 19 is opened on one side of the inner wall of the adjusting cavity 18. The side hole 19 is connected to the interior of the flow channel 15. Multiple bent through holes 25 are opened at equal intervals along the circumferential direction on the other end of the contact rod 21. One end of each of the multiple bent through holes 25 penetrates into the outer surface of the contact rod 21 and is opposite to the annular transition groove 20. Multiple auxiliary channels 26 are opened at equal intervals along the circumferential direction on the outer surface of the contact rod 21. Each of the multiple auxiliary channels 26 is located above the bent through holes 25 and is connected to the bent through holes 25.

[0039] The effect achieved is that when the pressure inside the suction chamber is normal, the liquid inside the suction chamber enters the receiving chamber 10 through the grid opening 13 and then flows into the regulating chamber 18 through the flow channel 15. Since the pressure is not high at this time, the movable plate 22 and the limiting ring 24 are in close contact with each other, and the movable plate 22 cannot be pushed to one side. At this time, the openings of the auxiliary channel 26 and the bent through hole 25 on the outer surface of the contact rod 21 slide to the point where the contact rod 21 and the fixed blade 9 are connected. Through the sliding seal between the outer surface of the contact rod 21 and the fixed blade 9, The sealing is achieved by bonding. At this time, the auxiliary channel 26 and the bent through hole 25 are located above the annular transition groove 20 and are not interconnected with the annular transition groove 20. When the pressure inside the water suction chamber is at a moderate level, the movable plate 22 can be pushed to one side inside the adjustment chamber 18. During the pushing process, the opening of the bent through hole 25 on the outer surface of the contact rod 21 slides to the point where it connects with the annular transition groove 20. At this time, the liquid inside the water suction chamber can flow into the annular transition groove 20 through the flow channel 15, and then pass through the annular transition groove 20. The bent through hole 25 exits from one end of the contact rod 21, reducing the pressure inside the suction chamber. When the pressure inside the suction chamber exceeds the dangerous value or the movable blade 11 slides to the bottom of the receiving chamber 10, the contact rod 21 can be pushed further to one side. When the pressure inside the suction chamber exceeds the dangerous value, due to the excessive pressure inside the suction chamber, the movable plate 22 is pushed to the position where it fits against the inner wall of the regulating chamber 18. At this time, the auxiliary channel 26 and the bent through hole 25 are connected to the annular transition groove 20, increasing the discharge rate of the flow, thereby rapidly reducing the pressure inside the suction chamber to avoid mechanical damage. When the movable blade 11 slides to the bottom of the receiving chamber 10, it means that the liquid inside the suction chamber has been compressed to the peak, and the compressed liquid will be discharged. During discharge, a large pressure drop will occur. In order to prevent the large pressure drop from causing vibration, the contact rod 21 is pushed further to one side by the constraint block 17, so that the auxiliary channel 26 and the bent through hole 25 are connected to the annular transition groove 20, increasing the discharge rate of the flow.

[0040] Working Principle: When using this device, an external load drives the hexagonal shaft 2 to rotate, which in turn drives the fixed shaft 28 and the drive ring 5 to rotate. Since the drive ring 5 is eccentrically positioned inside the pump casing 1, when the drive ring 5 rotates, it can drive the movable blade 11 to slide along the inner wall of the pump casing 1. When the liquid enters the inlet chamber inside the pump casing 1 from the inlet pipe 4, the liquid is at normal pressure. However, as the movable blade 11 moves and contracts, it squeezes the liquid inside the inlet chamber, thereby increasing the liquid pressure. When the movable blade 11 rotates to the drain pipe 3, the squeezed liquid can be discharged from the drain pipe 3 with a certain pressure. Its working method is that the volume change inside the chamber formed by the movable blade 11 and the fixed blade 9 affects the pressure of the liquid inside the chamber. The liquid in the suction chamber is compressed and pressurized. When the pressure inside the suction chamber is normal, the liquid inside the suction chamber enters the receiving chamber 10 through the grid opening 13 and then flows into the regulating chamber 18 through the flow channel 15. Since the pressure is not high at this time, the movable plate 22 and the limiting ring 24 are in contact with each other and cannot be pushed to one side. At this time, the openings of the auxiliary channel 26 and the bent through hole 25 on the outer surface of the contact rod 21 slide to the through connection between the contact rod 21 and the fixed blade 9. The sliding seal between the outer surface of the contact rod 21 and the fixed blade 9 is used for sealing. At this time, the auxiliary channel 26 and the bent through hole 25 are located above the annular transition groove 20 and are not interconnected with the annular transition groove 20. When the pressure inside the suction chamber is at a medium intensity, the liquid in the regulating chamber 18... The movable plate 22 can be pushed to one side internally. During the pushing process, the opening of the bent through hole 25 on the outer surface of the contact rod 21 slides to the point where it communicates with the annular transition groove 20. At this time, the liquid inside the suction chamber can flow into the annular transition groove 20 through the flow channel 15, and then be discharged from the annular transition groove 20 through the bent through hole 25 from one end of the contact rod 21, reducing the pressure inside the suction chamber. When the pressure inside the suction chamber exceeds the dangerous value or the movable blade 11 slides to the bottom of the receiving cavity 10, the contact rod 21 can be pushed further to one side. When the pressure inside the suction chamber exceeds the dangerous value, due to the excessive pressure inside the suction chamber, the movable plate 22 is pushed to the point where it fits against the inner wall of the adjusting cavity 18. At this time, the auxiliary Channel 26 and the bent through hole 25 are interconnected with the annular transition groove 20, increasing the discharge rate and thus rapidly reducing the pressure inside the suction chamber to prevent mechanical damage. When the movable blade 11 slides to the bottom of the receiving chamber 10, it indicates that the liquid inside the suction chamber has been compressed to its peak, and the compressed liquid is about to be discharged. During discharge, a large pressure drop will occur. To prevent vibration caused by a large pressure drop, the contact rod 21 is pushed further to one side by the constraint block 17, so that the auxiliary channel 26 and the bent through hole 25 are interconnected with the annular transition groove 20, increasing the discharge rate. When the movable blade 11 slides to the bottom of the receiving chamber 10, it will drive one end of the push rod 12 to press the spring friction block 8 against the outer surface of the friction ring 7.The friction between the spring friction block 8 and the outer surface of the friction ring 7 creates frictional resistance, reducing the rotational speed of the drive ring 5. This slows down the pump's operation as the pressurized liquid is discharged from the suction chamber, thus improving the pump's stability during operation.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid oil pump control device for new energy vehicles, characterized in that, The pump includes a pump housing (1), and a drive ring (5) is rotatably sealed between the inner walls of the two sides of the pump housing (1). Multiple fixed blades (9) are fixed at equal intervals along the circumferential direction on the outer surface of the drive ring (5). Each of the multiple fixed blades (9) has a receiving cavity (10) inside. Each of the multiple receiving cavities (10) extends to one end of the fixed blade (9). Each of the multiple receiving cavities (10) has a pressure boosting component inside. Each of the multiple fixed blades (9) has an adjustment component inside. An annular cavity (6) extending to one side is provided between the inner walls of the drive ring (5). A feedback component is provided inside the annular cavity (6). The drive ring (5) is eccentrically positioned inside the pump housing (1). A drain pipe (3) is fixed near the edge on one side of the pump housing (1), and an inlet pipe (4) is fixed near the edge on the other side of the pump housing (1).

2. The liquid oil pump control device for new energy vehicles according to claim 1, characterized in that: Two fixed blades (9) located on one side of the drive ring (5) form a compression chamber near the inner wall of the pump casing (1), and two fixed blades (9) located on the other side of the drive ring (5) form a water suction chamber away from the inner wall of the pump casing (1). One end of the drain pipe (3) penetrates into the interior of the pump casing (1) and is connected to the compression chamber. One end of the water inlet pipe (4) penetrates into the interior of the pump casing (1) and is connected to the water inlet chamber.

3. The liquid oil pump control device for new energy vehicles according to claim 2, characterized in that: The booster assembly includes a movable blade (11), which is slidably sealed between the inner walls of the receiving cavity (10). One end of the movable blade (11) extends to the outside of the fixed blade (9), and one end of the movable blade (11) slides against the inner wall of the pump housing (1). A sliding opening (16) is provided on one side of the inner wall of the receiving cavity (10). Multiple grid openings (13) are equidistantly provided on one side of the inner wall of the receiving cavity (10) near one edge. The multiple grid openings (13) all extend to the outside of the fixed blade (9).

4. The liquid oil pump control device for new energy vehicles according to claim 3, characterized in that: A constraint block (17) is provided between the inner walls of the two sides of the sliding opening (16). The top of the constraint block (17) is connected to the outer surface of the movable blade (11). A plurality of grid openings (13) are located on one side of the movable blade (11). A reciprocating spring (14) is fixed on one side of the movable blade (11). One end of the reciprocating spring (14) is fixed to the bottom surface of the storage cavity (10).

5. A liquid oil pump control device for new energy vehicles according to claim 4, characterized in that: The feedback component includes multiple spring friction blocks (8), one end of which is fixed at equal intervals along the circumferential direction on the inner wall of the annular cavity (6). A fixed shaft (28) is installed between the inner walls of the drive ring (5). One end of the fixed shaft (28) slides through to the outside of the pump housing (1) and is located on the side of the drain pipe (3). A hexagonal shaft (2) is fixed to one end of the fixed shaft (28).

6. The liquid oil pump control device for new energy vehicles according to claim 5, characterized in that: The outer surface of the fixed shaft (28) is fitted with a friction ring (7), which is located inside the annular cavity (6). One side of the friction ring (7) is protruding near the front and rear edges and is fixed on the inner wall of the pump housing (1). The other end of the multiple spring friction blocks (8) extends obliquely to the outside of the friction ring (7) and is opposite to the outer surface of the friction ring (7). The bottom surface of the multiple receiving cavities (10) is provided with guide holes (27).

7. A liquid oil pump control device for new energy vehicles according to claim 6, characterized in that: The multiple guide holes (27) are all curved in an arc shape and extend into the interior of the annular cavity (6). Push rods (12) are slidably sealed between the inner walls of the multiple guide holes (27). One end of each push rod (12) extends into the interior of the receiving cavity (10) and is fixed to one end of the movable blade (11). The other end of each push rod (12) extends into the interior of the annular cavity (6) and is in contact with one inclined surface of the spring friction block (8).

8. A liquid oil pump control device for new energy vehicles according to claim 7, characterized in that: The adjustment assembly includes a contact rod (21), and an adjustment cavity (18) is provided inside the fixed blade (9). The adjustment cavity (18) is located below the slide (16) and near the end edge. An annular transition groove (20) is provided inside the fixed blade (9). The annular transition groove (20) is located between the slide (16) and the adjustment cavity (18). The contact rod (21) is disposed inside the adjustment cavity (18).

9. A liquid oil pump control device for new energy vehicles according to claim 8, characterized in that: One end of the contact rod (21) slides through the sliding port (16) and the inner wall of the annular transition groove (20) slides and seals against the outer surface of the contact rod (21). The other end of the contact rod (21) slides through the outer surface of the fixed blade (9). A movable plate (22) is fixed on the outer surface of the contact rod (21). The movable plate (22) is slidably disposed between the inner walls of the adjustment cavity (18). A compression spring (23) is fixed on the top of the movable plate (22). The top of the compression spring (23) is fixed on the inner wall of the adjustment cavity (18). A limit ring (24) is fixed in the middle between the inner walls of the adjustment cavity (18). One side of the limit ring (24) is opposite to one side of the movable plate (22).

10. A liquid oil pump control device for new energy vehicles according to claim 9, characterized in that: The inner wall of the receiving cavity (10) is provided with a flow channel (15), one end of the flow channel (15) is opposite to a plurality of grid openings (13), and the other end of the flow channel (15) extends into the interior of the annular transition groove (20). The inner wall of the adjusting cavity (18) is provided with a side hole (19), which is connected to the interior of the flow channel (15). The other end of the contact rod (21) is provided with a plurality of bent through holes (25) at equal intervals along the circumferential direction. One end of each of the multiple bent through holes (25) extends into the outer surface of the contact rod (21) and is opposite to the annular transition groove (20). The outer surface of the contact rod (21) is provided with a plurality of auxiliary channels (26) at equal intervals along the circumferential direction. Each of the multiple auxiliary channels (26) is located above the bent through holes (25) and is connected to the bent through holes (25).

Citation Information

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