Valve and pump integrated structure

Abstract

The utility model discloses a valve and pump integrated structure which comprises a valve and pump integrated mechanism. When the water pump rotates anticlockwise during rotation, the ratchet wheel drives the sun wheel to rotate anticlockwise, the planetary gear set drives the valve element to rotate, and therefore switching between a water valve and a water pump waterway is achieved. When the water pump rotating shaft rotates clockwise, the problem that according to an existing ratchet wheel separation structure, a pressure difference is generated between the upper portion and the lower portion of an impeller through forward rotation of the water pump; according to the structure, when the water pump rotates at a low speed or is started, due to the fact that no pressure difference exists between the upper portion and the lower portion of the impeller, the ratchet wheel cannot be separated immediately, the ratchet wheel and the rotating shaft rotate synchronously, the phenomenon of tooth hitting with the gear below can be generated, and noise is generated; and the service life of the gear is also influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile thermal management, in particular to a valve-pump integrated structure. Background Art

[0002] In the current automotive thermal management module, water pumps and water valves are essential components, and the electronic water valve requires a special driver to drive it, which is relatively expensive. In the current valve-pump integrated module, the switching between water pump mode and water valve mode needs to be achieved by the clutch of the ratchet mechanism. The current ratchet separation structure requires the water pump to rotate forward to generate a pressure difference between the upper and lower parts of the impeller, so that the impeller drives the shaft to move toward the inlet, and synchronously drives the ratchet connected to the shaft to move and separate from the matching gear. This structure cannot immediately separate the ratchet when the water pump is at low speed or when it is started because there is no pressure difference between the upper and lower parts of the impeller. The synchronous rotation of the ratchet and the shaft will cause the gear below to hit the teeth, generating noise and also affecting the gear life. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a valve-pump integrated structure, which has the advantages of a valve-pump integrated structure and solves the problem that the current ratchet separation structure needs to generate a pressure difference between the upper and lower parts of the impeller through the positive rotation of the water pump, so that the impeller drives the rotating shaft to move toward the inlet, and synchronously drives the ratchet connected to the rotating shaft to move and separate from the matching gear. When the water pump is at low speed or when it is started, there is no pressure difference between the upper and lower parts of the impeller, and the ratchet cannot be separated immediately. The synchronous rotation of the ratchet and the rotating shaft will cause the teeth of the gear below to clash, generate noise, and affect the life of the gear.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a valve-pump integrated structure, including a valve-pump integrated mechanism, the valve-pump integrated mechanism including a water valve housing, a water valve core, a water valve sealing gasket, a ratchet, a sun gear, a planetary gear, a spring pressure assembly, fixing bolts, a pump head, an impeller and a pump body, the water valve housing and the pump body are respectively connected and fixed to the pump head by bolts, and are sealed by O-rings to prevent leakage, the water valve core is engaged with the sun gear and the planetary gear, and the ratchet is engaged with the sun gear; the ratchet and the impeller are interference fit with the water pump shaft, the spring pressure assembly applies pressure to the sealing gasket, the bottom of the valve-pump integrated mechanism is provided with an internal rotor of the water pump, a stator and a pre-stressed elastomer, the stator is located on the outside of the internal rotor of the water pump, and the pre-stressed elastomer is located on the top of the internal rotor of the water pump.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0006] 1. The utility model is arranged such that when the water pump rotates counterclockwise, the ratchet drives the sun gear to rotate counterclockwise, and drives the valve core to rotate through the planetary gear set, thereby realizing the switching of the water valve and the water channel of the water pump. When the water pump shaft rotates clockwise, the impeller drives the water flow to rotate, and a pressure difference is generated above and below the impeller (the pressure below is less than the pressure above), causing the impeller to move upward, and the ratchet is also driven upward by the rotating shaft to separate the ratchet and the sun gear). At this time, the planetary gear set remains stationary, and the entire module works as a water pump. At the same time, other pipelines of the water valve can be used as flow channels in the water channel system. The rotor, stator and pre-loaded elastic body inside the water pump press the rotor downward, causing the center position of the rotor and the stator to deviate, forming a state of magnetic imbalance. After the water pump is powered on, The stator magnetic field is enhanced, and the magnetic force between it and the rotor increases, overcoming the downward elastic force of the elastic body, causing the rotor to move upward instantly and reach a state of magnetic balance consistent with the center of the stator. The ratchet moves upward synchronously with the rotor through the connected shaft and separates from the sun gear instantly, realizing the state of ratchet separation before the water pump rotates. This solves the problem that the current ratchet separation structure needs to generate a pressure difference between the upper and lower parts of the impeller through the positive rotation of the water pump, so that the impeller drives the shaft to move toward the inlet, and synchronously drives the ratchet connected to the shaft to move and separate from the matching gear. When the water pump is at low speed or when starting, there is no pressure difference between the upper and lower parts of the impeller, and the ratchet cannot be separated immediately. The synchronous rotation of the ratchet and the shaft will cause the teeth of the gear below to hit, generating noise, and also affecting the life of the gear, thus achieving the effect of valve and pump integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the explosion structure of the utility model;

[0008] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0009] Figure 3 It is a schematic diagram of the sectional three-dimensional structure of the utility model.

[0010] In the figure: A. Valve-pump integrated mechanism; 1. Water valve housing; 2. Water valve core; 3. Water valve sealing gasket; 4. Ratchet; 5. Sun gear; 6. Planetary gear; 7. Spring pressure assembly; 8. Fixing bolt; 9. Pump head; 10. Impeller; 11. Pump body; 12. Rotor inside the water pump; 13. Stator; 14. Pre-load elastomer. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0012] like Figures 1 to 3 As shown, the valve-pump integrated structure provided by the utility model includes a valve-pump integrated mechanism A, which includes a water valve housing 1, a water valve core 2, a water valve sealing gasket 3, a ratchet 4, a sun gear 5, a planetary gear 6, a spring pressure assembly 7, a fixing bolt 8, a pump head 9, an impeller 10 and a pump body 11. The water valve housing 1 and the pump body 11 are respectively connected and fixed to the pump head 9 by bolts, and are sealed by O-rings to prevent leakage. The water valve core 2 is engaged with the sun gear 5 and the planetary gear 6, and the ratchet 4 is engaged with the sun gear 5; the ratchet 4 and the impeller 10 are interference fit with the water pump shaft, and the spring pressure assembly 7 applies pressure to the sealing gasket. The bottom of the valve-pump integrated mechanism A is provided with a water pump internal rotor 12, a stator 13 and a pre-stressed elastomer 14. The stator 13 is located on the outside of the water pump internal rotor 12, and the pre-stressed elastomer 14 is located on the top of the water pump internal rotor 12.

[0013] The working principle and use process of the present invention are as follows: when the water pump rotates counterclockwise, the ratchet 4 drives the sun gear 5 to rotate counterclockwise, and drives the valve core to rotate through the planetary gear set to realize the switching of the water valve and the water pump waterway; when the water pump shaft rotates clockwise, the impeller 10 drives the water flow to rotate, and a pressure difference is generated above and below the impeller 10. The pressure below the impeller 10 is less than the pressure above the impeller 10, causing the impeller 10 to move upward, and the ratchet 4 is also driven to move upward through the shaft, so that the ratchet 4 is separated from the sun gear 5. At this time, the planetary gear set remains stationary, and the entire module works as a water pump. At the same time, other pipelines of the water valve can be used as flow channels in the water system. The rotor 12, stator 13 and pre- The elastic body 14 is pressed, and the elastic body presses the rotor downward, causing the center position of the rotor and the stator 13 to be offset, forming a state of magnetic imbalance. After the water pump is energized, the magnetic field of the stator 13 is enhanced, and the magnetic force between the stator 13 and the rotor is increased, overcoming the downward elastic force of the elastic body, causing the rotor to move up instantly and reach a state of magnetic balance consistent with the center of the stator 13. The ratchet 4 moves up synchronously with the rotor through the connected rotating shaft and separates instantly from the sun gear 5, realizing the state of the ratchet 4 being separated before the water pump rotates. When the water pump is powered off, the magnetic force returns to the state before power is applied, and the elastic body's rebound force presses the rotor downward, causing it to return to its initial position. The ratchet 4 also moves synchronously and engages with the sun gear 5. At this time, the water valve mode can be switched.

[0014] To sum up: the valve-pump integrated structure is arranged so that when the water pump rotates counterclockwise, the ratchet 4 drives the sun gear 55 to rotate counterclockwise, and drives the valve core to rotate through the planetary gear set to realize the switching of the water valve and the water pump water path. When the water pump shaft rotates clockwise, the impeller 10 drives the water flow to rotate, and a pressure difference is generated above and below the impeller 10. The pressure below the impeller 10 is less than the pressure above the impeller 10, causing the impeller 10 to move upward, and the ratchet 4 is also driven upward by the shaft to separate the ratchet 4 from the sun gear 5. At this time, the planetary gear set remains stationary, and the entire module works as a water pump. At the same time, other pipelines of the water valve can be used as flow channels in the water system. The rotor 12, stator 13 and pre-loaded elastic body 14 inside the water pump, the elastic body presses the rotor downward, causing the center position of the rotor and the stator 13 to offset, forming a magnetic In the state of force imbalance, after the water pump is energized, the magnetic field of the stator 13 is enhanced, and the magnetic force between the stator 13 and the rotor increases, overcoming the downward elastic force of the elastic body, causing the rotor to move up instantly and reach a state of magnetic balance consistent with the center of the stator 13. The ratchet 4 moves up synchronously with the rotor through the connected rotating shaft and is instantly separated from the sun gear 5, realizing the state of the ratchet 4 being separated before the water pump rotates, solving the problem that the current ratchet separation structure needs to generate a pressure difference above and below the impeller through the positive rotation of the water pump, so that the impeller drives the rotating shaft to move toward the inlet, and synchronously drives the ratchet connected to the rotating shaft to move and separate from the matching gear. When the water pump is at low speed or when starting, there is no pressure difference above and below the impeller, and the ratchet cannot be separated immediately. The synchronous rotation of the ratchet and the rotating shaft will cause the teeth to hit the gear below, generating noise, and also affecting the life of the gear.

[0015] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0016] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve-pump integrated structure, comprising a valve-pump integrated mechanism (A), characterized in that: The valve-pump integrated mechanism (A) comprises a water valve housing (1), a water valve core (2), a water valve sealing gasket (3), a ratchet (4), a sun gear (5), a planetary gear (6), a spring pressure assembly (7), a fixing bolt (8), a pump head (9), an impeller (10) and a pump body (11). The water valve housing (1) and the pump body (11) are respectively connected and fixed to the pump head (9) by bolts and sealed by an O-ring to prevent leakage. The water valve core (2) is connected to the sun gear (5), the planetary gear (6), the spring pressure assembly (7), the fixing bolt (8), the pump head (9), the impeller (10) and the pump body (11). (6) meshing, the ratchet (4) meshing with the sun gear (5); the ratchet (4) and the impeller (10) are interference fit with the water pump shaft, the spring pressure assembly (7) applies pressure to the sealing gasket, and the bottom of the valve pump integrated mechanism (A) is provided with a water pump internal rotor (12), a stator (13) and a pre-stressed elastic body (14), the stator (13) is located on the outside of the water pump internal rotor (12), and the pre-stressed elastic body (14) is located on the top of the water pump internal rotor (12).

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