A series-type vehicle thermal management integrated water valve and flow channel control method

Abstract

The present invention discloses a series-type vehicle thermal management integrated water valve and flow channel control method, comprising a shell, a valve cavity is provided in the shell, a driven valve core, an active valve core and a sealing assembly for sealing the valve cavity are sequentially provided in the valve cavity from bottom to top, a plurality of pipeline channel openings are respectively provided on the outside of the shell corresponding to the active valve core and the driven valve core, and valve core channels for connecting different pipeline channel openings corresponding to the active valve core or the driven valve core are provided inside the active valve core and the driven valve core; an active transmission step is provided on the side of the active valve core close to the driven valve core, and a driven transmission step cooperating with the active transmission step is provided on the side of the driven valve core close to the active valve core, and a rotational clearance is provided between the active transmission step of the active valve core and the driven transmission step of the driven valve core. By controlling the forward and reverse rotation of the active valve core, two combinations of angular synchronization and overall angular misalignment of the active valve core and the driven valve core can be realized.

Description

Technical Field

[0001] The present invention relates to the field of control valves, and in particular to a series-type vehicle thermal management integrated water valve and a flow channel control method. Background Art

[0002] For new energy vehicles, functional areas such as the three-electric system and the passenger compartment have clear requirements for temperature ranges. The heat exchange medium circulates between different circuits in real time according to the requirements. Through the heat exchange when the medium flows through, each functional area can be kept within the target temperature range. For fuel vehicles, functional areas such as the engine body, turbocharger, transmission and passenger compartment also have clear requirements for temperature and need to be actively managed. A water valve or a thermal management module formed by the integration of multiple water valves is installed between each circulation loop as a device to control the flow direction or flow of the medium.

[0003] Currently, due to the numerous areas requiring thermal management in vehicles, multiple water valves and actuators are typically required to achieve control. These valves are connected via pipes, resulting in complex piping, numerous interfaces, large space requirements, and high costs. Integrating multiple water valves into a thermal management module (some designs also integrate water pumps, rehydration tanks, and fluid temperature sensors) can eliminate auxiliary components such as pipes and connectors, and enhance overall collaborative management capabilities. However, existing thermal management modules have some shortcomings:

[0004] 1. Multiple water valves are structurally assembled into an integral housing, but the actuators that drive each valve still operate independently and drive a separate valve core. The management logic is also designed separately for each actuator and valve core flow channel.

[0005] 2. Some thermal management modules integrate multiple water valve cores axially (shaped like a gourd string), which means they can be rotated as a whole using one actuator and the same rotation axis. However, this will cause a strong correlation between the angular positions of the two sets of valve cores, greatly reducing the flexibility of flow control and only meeting the flow channel form of specific working conditions and structures.

[0006] 3. Some thermal management modules arrange multiple water valve cores on the same plane, with gears installed on each valve core to mesh with each other. When one valve core is driven by an actuator, the other valve cores driven by the meshing rotate synchronously. However, since the gear meshing state between the valve cores is fixed, the possible combinations of flow channels in the valve cores are relatively limited, and the possible medium flow forms are also limited.

[0007] Therefore, there is an urgent need for a series-type vehicle thermal management integrated water valve and flow channel control method that can solve the above problems. Summary of the Invention

[0008] The present invention aims to provide a series-type automotive thermal management integrated water valve and flow channel control method. When the water valve is working, the actuator controls the rotation and stop of the active valve core, and the active valve core drives the driven core to rotate and stop through the transmission step, that is, one actuator controls multiple valve cores through linkage; when the multiple valve cores rotate, the internal flow channels rotate synchronously and change positions to form different flow channel combinations, that is, the medium flow control function is realized.

[0009] The embodiment of the present invention is achieved as follows:

[0010] A series-type vehicle thermal management integrated water valve comprises a housing, a valve cavity disposed within the housing, a driven valve core, an active valve core, and a sealing assembly for sealing the valve cavity disposed in order from bottom to top within the valve cavity, a plurality of pipeline passage openings disposed on the exterior of the housing corresponding to the active valve core and the driven valve core, and valve core passages disposed within the active valve core and the driven valve core for connecting different corresponding pipeline passage openings of the active valve core or the driven valve core;

[0011] An active transmission step is provided on the side of the active valve core adjacent to the driven valve core. The width of the active transmission step's driving structure is less than the length of its gap. A driven transmission step is provided on the side of the driven valve core adjacent to the active valve core, cooperating with the active transmission step. The width of the driven transmission step's torque receiving structure is less than the length of its gap. The active transmission step's driving structure is inserted into the driven transmission step's torque receiving structure to form a gap. By controlling the forward and reverse rotation of the active valve core, two states of angular synchronization and overall angular misalignment between the active and driven valve cores can be achieved. When the water valve is operating, the actuator controls the rotation and stopping of the active valve core, and the active valve core drives the driven core to rotate and stop via the transmission step, thereby achieving linkage control of multiple valve cores by a single actuator. When the multiple valve cores rotate, the internal flow channels rotate synchronously and change position, forming different flow channel combinations, thereby achieving medium flow control. A rotational gap is provided between the active valve core and the transmission valve core.

[0012] Preferably, the active valve core has a positioning hole at its center near the driven valve core, and the driven valve core is provided with a mating protruding shaft corresponding to the positioning hole, and the positioning hole and the protruding shaft are in a clearance fit relationship, for positioning and guiding, forming a guide positioning structure.

[0013] Preferably, the sealing assembly comprises a cover plate, a cover plate sealing ring, and a shaft core sealing ring. The cover plate is removably connected to the housing. The cover plate sealing ring is positioned between the cover plate and the housing. The cover plate is also provided with a bearing hole for the input shaft to pass through, and the shaft core sealing ring is positioned between the bearing hole and the input shaft. The top surface of the housing is provided with several screw holes for screw locking during assembly of the housing and cover plate. The end of the input shaft has a non-perfectly circular feature, such as a flower pattern, to receive rotational torque and provide position control after assembly with the actuator. The cover plate sealing ring has a rectangular or circular cross-section and can be designed with various sealing methods, such as radial sealing, axial sealing, and welding, depending on the structural characteristics, to isolate the water valve cavity from the external environment. The shaft core sealing ring is installed in the shaft core sealing ring mounting hole of the cover plate. The outer ring contacts the annular sidewall of the shaft core sealing ring mounting hole in the cover plate to form a static seal. The inner ring cooperates with the raceway section of the active valve core input shaft to form a dynamic seal. The oil seal isolates the water valve cavity from the external environment.

[0014] Preferably, the input shaft includes a raceway section and a sealing section, the raceway section and the bearing hole of the cover plate form center positioning and sliding friction, and the sealing section and the inner circle of the shaft core sealing ring are elastically squeezed to form a rotating dynamic seal.

[0015] Preferably, a sealing structure is provided between the active and driven valve cores and the housing, and the sealing structure is made of an elastic rubber material. The sealing structure is a rubber pad, and the outer circumferences of both valve cores are wrapped with the rubber pad to form an internal seal. When a valve core is rotated to a specific angle, the flow channel of the valve core and the side holes of the sealing structure completely or partially overlap. At this time, the flow channel of the valve core, the side holes of the sealing structure, and the corresponding inner holes of the pipeline are connected to form a channel for medium flow. When the flow channel of the valve core is not connected to any side holes of the planar pad, the flow channel is closed.

[0016] Preferably, a smooth, wear-resistant layer is provided on the inner surface of the sealing structure, which is in sliding connection with the active valve core and the driven valve core. The smooth, wear-resistant layer is a layer coated or inlaid with a low-friction, wear-resistant material to improve the working conditions of the inner sealing surface.

[0017] Preferably, a positioning structure is provided on the outer surface of the sealing structure, and the positioning structure is used to be fixed to the housing to prevent the sealing structure from rotating with the active valve core or the driven valve core. The positioning structure is a convex rib.

[0018] Preferably, the number of the driven valve core is at least one, the active valve core and the driven valve core are respectively provided with at least two pipeline channel openings, and the pipeline channel openings are evenly distributed in an array; the valve core channel is used to connect at least two pipeline channel openings; the angle between the driven transmission steps is the same as the angle between the pipeline channel openings; the number of the driven valve core is 1; and the active valve core and the driven valve core are respectively provided with four pipeline channel openings, and the four pipeline channel openings are evenly distributed in an array; the valve core channel is used to connect two adjacent pipeline channel openings; the angle between the driven transmission steps is 90°. The top active valve core is provided with a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline, and the bottom driven valve core is provided with a fifth pipeline, a sixth pipeline, a seventh pipeline, and an eighth pipeline; these pipelines are connected to the vehicle or other parts to transport the medium to the required location. The active valve core and the driven valve core are both cylindrical.

[0019] Preferably, the active valve core is provided with two valve core channels, the driven valve core is provided with one valve core channel, and the valve core channels are arranged in an arc-shaped structure.

[0020] Preferably, there are multiple driven transmission steps, and the distance between two adjacent driven transmission steps is greater than the length of the active transmission step.

[0021] Preferably, an input shaft for connecting to an actuator is further provided on a side of the active valve core away from the driven valve core, and the input shaft drives the active valve core to rotate and further drives the driven valve core to rotate.

[0022] The present invention also provides a flow channel control method, which is based on the above-mentioned series-type automotive thermal management integrated water valve. When the flow channel needs to be controlled, the active valve core is driven to rotate by external force, and under the cooperation of the active transmission step and the driven transmission step, the driven valve core will be in a corresponding state; at this time, the valve core flow channels of the active valve core and the driven valve core are in a connected, semi-connected or closed state with the adjacent channel openings; the required flow channel on-off state or semi-connected state is achieved through the connected state formed by the combination of the valve core flow channel of the active valve core and the valve core flow channel of the driven valve core.

[0023] Due to the adoption of the above technical solution, the beneficial effects of the present invention include: a series-type vehicle thermal management integrated water valve and flow channel control method, by setting a transmission step with a rotational gap between the active valve core and the driven valve, when the active valve core rotates in a certain direction, it will drive the driven valve core to rotate synchronously, and when the active valve core rotates in the opposite direction for the first time, the driven valve core can remain stationary, thereby realizing two combinations of angle synchronization and overall angle misalignment. When the valve core rotates, its internal flow channel forms a variety of flow channel combinations according to various angle combinations, realizing a wider range of medium flow states; because a linkage structure is set on the valve core, more angle combinations can be realized, so that one actuator can control multiple valve cores and realize flow forms of various working conditions, reducing the number of parts, improving reliability, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings mentioned in the embodiments will be briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The exploded view of the structure of the present invention is shown in FIG.

[0026] Figure 2 A cross-sectional view of the structure of the present invention is shown in FIG;

[0027] Figure 3 : shows a three-dimensional structural diagram of the active valve core and the driven valve core of the present invention;

[0028] Figure 4 : shows the structure diagram of the active valve core in the first working condition of the present invention;

[0029] Figure 5 : shows the structure diagram of the driven valve core in the first working condition of the present invention;

[0030] Figure 6 : shows the structure diagram of the active valve core in the second working condition of the present invention;

[0031] Figure 7 : shows the structure diagram of the driven valve core in the second working condition of the present invention;

[0032] Figure 8 : shows the structure diagram of the active valve core in the third working condition of the present invention;

[0033] Figure 9 : shows the structure diagram of the driven valve core in the third working condition of the present invention;

[0034] Figure 10: shows the structure diagram of the active valve core in the fourth working condition of the present invention;

[0035] Figure 11 : shows the structure diagram of the driven valve core in the fourth working condition of the present invention;

[0036] Figure 12 : shows the active valve core structure diagram of the fifth working condition of the present invention;

[0037] Figure 13 : shows the structure diagram of the driven valve core in the fifth working condition of the present invention;

[0038] Figure 14 : shows the structure diagram of the active valve core in the sixth working condition of the present invention;

[0039] Figure 15 : shows the structure diagram of the driven valve core in the sixth working condition of the present invention;

[0040] Figure 16 : shows the structure diagram of the active valve core in the seventh working condition of the present invention;

[0041] Figure 17 : shows the structure diagram of the driven valve core in the seventh working condition of the present invention;

[0042] Figure 18 : shows the structure diagram of the active valve core in the eighth working condition of the present invention;

[0043] Figure 19 , which shows the structure diagram of the driven valve core in the eighth working condition of the present invention.

[0044] Explanation of specific element symbols: 1. Housing; 2. Sealing structure; 3. Driven valve core; 4. Active valve core; 5. Cover plate sealing ring; 6. Cover plate; 7. Screw; 8. Valve core channel; 11. Pipe channel opening; 31. Raised shaft; 32. Driven transmission step; 41. Input shaft; 42. Active transmission step. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] Example 1: Please see Figures 1 to 19, this embodiment proposes a series-type vehicle thermal management integrated water valve, including a shell 1, a valve cavity is provided in the shell 1, and a driven valve core 3, an active valve core 4 and a sealing assembly for sealing the valve cavity are provided in sequence from bottom to top in the valve cavity, a plurality of pipeline channel openings 11 are provided on the outside of the shell 1 corresponding to the active valve core 4 and the driven valve core 3, and a valve core channel 8 is provided inside the active valve core 4 and the driven valve core 3 for connecting the different pipeline channel openings 11 corresponding to the active valve core 4 or the driven valve core 3; an active transmission step 42 is provided on the side of the active valve core 4 close to the driven valve core 3, the driving structure width of the active transmission step 42 is less than the gap length thereof, and the driven valve core 3 close to the active valve core 4 is provided with a plurality of pipeline channel openings 11, and a plurality of pipeline channel openings 11 are provided on the outside of the shell 1 corresponding to the active valve core 4 and the driven valve core 3, and a plurality of pipeline channel openings 11 corresponding to the active valve core 4 and the driven valve core 3 are provided with a plurality of pipeline channel openings 1 ... A driven transmission step 32 is provided on one side of the valve core 4, cooperating with the active transmission step 42. The width of the driven transmission step 32's torque-receiving structure is smaller than the length of its gap. The driving structure of the active transmission step 42 inserts into the torque-receiving structure of the driven transmission step 32, forming a gap. By controlling the forward and reverse rotation of the active valve core 4, the active valve core 4 and the driven valve core 3 can achieve both angular synchronization and overall angular misalignment. An input shaft 41 for connecting to an actuator is also provided on the side of the active valve core 4 away from the driven valve core 3. The input shaft 41 drives the rotation of the active valve core 4 and, in turn, the driven valve core 3. A rotational gap is provided between the active valve core 4 and the transmission valve core 3. In this embodiment, there are multiple driven transmission steps 32, and the distance between two adjacent driven transmission steps 32 is greater than the length of the active transmission step 42. When the water valve is working, the actuator controls the rotation and stop of the active valve core 4, and the active valve core 4 drives the driven core to rotate and stop through the transmission step, that is, one actuator controls two valve cores through linkage; when the two valve cores rotate, the internal flow channels rotate synchronously and change positions to form different flow channel combinations, that is, the medium flow control function is realized.

[0052] Example 2: In this embodiment, the active valve core 4 has a positioning hole at its center near the side of the driven valve core 3. A corresponding raised shaft 31 is provided on the driven valve core 3, creating a clearance fit between the positioning hole and the raised shaft 31. This forms a guiding and positioning structure. The sealing assembly in this embodiment includes a cover plate 6, a cover plate sealing ring 5, and a shaft seal ring. The cover plate 6 is removably connected to the housing 1. The cover plate sealing ring 5 is positioned between the cover plate 6 and the housing 1. The cover plate 6 also has a bearing hole for the input shaft 41, and the shaft seal ring is positioned between the bearing hole and the input shaft 41. Several holes are provided around the top surface of the housing 1 for screws 7 to secure the housing 1 and the cover plate 6 during assembly. The end of the input shaft 41 has a non-perfectly round feature, such as a flower pattern, to receive rotational torque and provide position control after assembly with the actuator. The cover plate sealing ring 5 has a rectangular or circular cross-section and can be designed with various sealing methods, such as radial sealing, axial sealing, and welding, depending on the structural characteristics, to isolate the water valve cavity from the external environment. The shaft core sealing ring is installed in the shaft core sealing ring installation hole of the cover plate 6, and the outer ring contacts the annular side wall of the shaft core sealing ring placement hole of the cover plate 6 to form a static seal; the inner ring of the active valve core 4 and the rolling section of the input shaft 41 cooperate to form a dynamic seal; the oil seal isolates the inner cavity of the water valve from the external environment.

[0053] Example 3: The input shaft 41 of this embodiment comprises a raceway section and a sealing section. The raceway section and the bearing hole of the cover plate 6 provide centering and sliding friction, while the sealing section elastically compresses against the inner circumference of the shaft core seal ring to form a rotating dynamic seal. A sealing structure 2 made of elastic rubber is also provided between the active valve core 4 and the passive valve core 3 and the housing 1. The outer circumference of each valve core is wrapped with a rubber pad, forming an internal seal. When a valve core rotates to a specific angle, the flow channel of the valve core fully or partially overlaps with the side hole of the sealing structure 2. At this point, the flow channel of the valve core, the side hole of the sealing structure 2, and the corresponding inner hole of the pipeline are connected to form a channel for medium flow. When the flow channel of the valve core is not connected to any side hole of the flat pad, the flow channel is closed. The inner surface of the sealing structure 2 of this embodiment is provided with a smooth, wear-resistant layer, which is in sliding contact with the active valve core 4 and the passive valve core 3. The smooth, wear-resistant layer is a coating or inlay of a low-friction, wear-resistant material to improve the working conditions of the inner sealing surface. A positioning structure is provided on the inner surface of the sealing structure 2 of this embodiment, and the positioning structure is used to be fixed to the housing 1 .

[0054] Example 4: The number of driven valve cores 3 in this embodiment is 1; and the active valve core 4 and the driven valve core 3 are respectively provided with four pipeline channel openings 11, and the four pipeline channel openings 11 are evenly distributed in an array; the valve core channel 8 is used to connect two adjacent pipeline channel openings 11; the angle between the driven transmission steps 32 is 90°. The top active valve core 4 is provided with a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, and the bottom driven valve core 3 is provided with a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline; these pipelines are connected to the vehicle or other parts to transport the medium to the required location. Both the active valve core 4 and the driven valve core 3 are not cylindrical. The active valve core 4 of this embodiment is provided with two valve core channels 8, and the driven valve core 3 is provided with one valve core channel 8, and the valve core channel 8 is provided with an arc structure.

[0055] Example 5: The present invention also provides a flow channel control method, based on the above-mentioned series-type automotive thermal management integrated water valve, when the flow channel needs to be controlled, the active valve core 4 is driven to rotate by external force, and under the cooperation of the active transmission step 42 and the driven transmission step 32, the driven valve core 3 will be in a corresponding state; at this time, the valve core flow channels of the active valve core 4 and the driven valve core 3 are in a connected, semi-connected or closed state with the adjacent channel openings; the required flow channel on-off state or semi-connected state is achieved by the connected state formed by the combination of the valve core flow channel of the active valve core 4 and the valve core flow channel of the driven valve core 3.

[0056] This application provides a transmission step with a rotational clearance between the active valve core 4 and the driven valve. When the active valve core 4 rotates in a certain direction, it will drive the driven valve core 3 to rotate synchronously. When the active valve core 4 rotates in the opposite direction for the first time, the driven valve core 3 can remain stationary, thereby achieving two combinations of angle synchronization and overall angle misalignment. When the valve core rotates, its internal flow channel is combined at various angles to form a variety of flow channel combinations, achieving a wider range of medium flow states. Because a linkage structure is provided on the valve core, more angle combinations can be achieved, so that one actuator can control multiple valve cores and achieve flow forms in various working conditions, reducing the number of parts, improving reliability, and reducing costs.

[0057] Example 6: When the active valve core 4 and the driven valve core 3 are both in Figure 4 and 5 In the initial 0° position shown (in this state, the transmission step groups of the active and driven valve cores 3 are in contact in the clockwise movement trend, and are disengaged on the counterclockwise side to form a gap), the first pipeline and the second pipeline are connected through the flow channel A of the active valve core 4, the third pipeline and the fourth pipeline are connected through the flow channel B of the active valve core 4, and the fifth pipeline and the sixth pipeline are connected through the flow channel C of the driven valve core 3. The other pipelines are closed because they have no flow channel openings aligned with them, and no medium flows, thereby realizing the first working condition.

[0058] When the actuator rotates the active valve core 4 clockwise to the absolute 90° position, the transmission step group has been in contact in this direction of movement during the rotation process, and the driven valve core 3 is driven to rotate clockwise to the absolute 90° position. Figure 6 and 7 The position shown; at this time, the first pipeline and the fourth pipeline are connected through the flow channel A, the second pipeline and the third pipeline are connected through the flow channel B, the fifth pipeline and the eighth pipeline are connected through the flow channel C, and the other pipelines are closed, realizing the second working condition.

[0059] When the actuator continues to rotate the active valve core 4 clockwise to the absolute 180° position, the transmission step group contacts in this direction of movement during the rotation process, and the driven valve core 3 is driven to rotate clockwise to the absolute 180° position. Figure 8 and 9 The position shown; at this time, the first pipeline and the second pipeline are connected through the flow channel B of the active valve core 4, the third pipeline and the fourth pipeline are connected through the flow channel A of the active valve core 4, the seventh pipeline and the eighth pipeline are connected through the flow channel C of the driven valve core 3, and the other pipelines are closed, realizing the third working condition.

[0060] When the actuator continues to rotate the active valve core 4 clockwise to the absolute 270° position, the transmission step group contacts in this direction of movement during the rotation process, and the driven valve core 3 is driven to rotate clockwise to the absolute 270° position. Figure 10 and 11 The position shown; at this time, the first pipeline and the fourth pipeline are connected through the flow channel B of the active valve core 4, the second pipeline and the third pipeline are connected through the flow channel A of the active valve core 4, the sixth pipeline and the seventh pipeline are connected through the flow channel C of the driven valve core 3, and the other pipelines are closed, realizing the fourth working condition.

[0061] If the actuator rotates the active valve core 4 90° counterclockwise at this time, that is, reaches the absolute 180° position, during this rotation process, due to the gap between the transmission step group of the master and slave valve cores 3 in the counterclockwise direction, the transmission step group disengages, and the slave valve core 3 remains stationary at the absolute 270° position. When the active valve core 4 completes the 90° rotation and reaches the absolute 180° position, the transmission step group just contacts in the counterclockwise direction, while the clockwise side disengages to form a gap. At this time, the slave valve core 3 and the slave valve core 3 have completed the overall angular misalignment, such as Figure 12 and 13 At this time, the first and second pipelines are connected through the flow channel B of the active valve core 4, the third and fourth pipelines are connected through the flow channel A of the active valve core 4, the sixth and seventh pipelines are connected through the flow channel C of the driven valve core 3, and the other pipelines are closed, achieving the fifth working condition.

[0062] The actuator continues to rotate the active valve core 4 90° counterclockwise to the absolute 90° position. During the rotation, the transmission step group contacts in this direction of movement, and the driven valve core 3 is rotated counterclockwise back to the absolute 180° position. Figure 14 and 15 At this time, the first and fourth pipelines are connected through flow channel A of the active valve core 4, the second and third pipelines are connected through flow channel B of the active valve core 4, the seventh and eighth pipelines are connected through flow channel C of the driven valve core 3, and the other pipelines are closed, achieving the sixth operating condition.

[0063] The actuator continues to rotate the active valve core 4 90° counterclockwise to the absolute 0° position. During the rotation, the transmission step group contacts in this direction of movement, and the driven valve core 3 is rotated counterclockwise back to the absolute 90° position. Figure 16 and 17 At this time, the first and second pipelines are connected through flow channel A of the active valve core 4, the third and fourth pipelines are connected through flow channel B of the active valve core 4, the fifth and eighth pipelines are connected through flow channel C of the driven valve core 3, and the other pipelines are closed, achieving the seventh working condition.

[0064] The actuator continues to rotate the active valve core 4 90° counterclockwise to the absolute 270° position. During the rotation, the transmission step group contacts in this direction of movement, and the driven valve core 3 is rotated counterclockwise back to the absolute 0° position. Figure 18 and 19 At this time, the first and fourth pipelines are connected through flow channel B of the active valve core 4, the second and third pipelines are connected through flow channel A of the active valve core 4, the fifth and sixth pipelines are connected through flow channel C of the driven valve core 3, and the other pipelines are closed, achieving the eighth working condition.

[0065] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A series-type vehicle thermal management integrated water valve, characterized by: The invention comprises a housing, wherein a valve cavity is provided in the housing, wherein a driven valve core, an active valve core, and a sealing assembly for sealing the valve cavity are provided in order from bottom to top, wherein a plurality of pipeline channel openings are provided on the outside of the housing corresponding to the active valve core and the driven valve core, respectively, and wherein valve core channels are provided inside the active valve core and the driven valve core for connecting different pipeline channel openings corresponding to the active valve core or the driven valve core; An active transmission step is provided on the side of the active valve core close to the driven valve core, and the width of the active transmission step driving structure is smaller than the length of its gap. A driven transmission step cooperating with the active transmission step is provided on the side of the driven valve core close to the active valve core, and the width of the driven transmission step receiving torque structure is smaller than the length of its gap. The active transmission step driving structure is inserted into the driven transmission step receiving torque structure to form a gap. Through the forward and reverse rotation control of the active valve core, two states of angular synchronization and overall angular misalignment of the active valve core and the driven valve core can be realized.

2. The tandem vehicle thermal management integrated water valve according to claim 1, characterized in that: A positioning hole is provided at the center of one side of the active valve core close to the driven valve core. The driven valve core is provided with a matching protruding shaft rod corresponding to the positioning hole. The positioning hole and the protruding shaft rod are in a clearance fit relationship.

3. The series-type vehicle thermal management integrated water valve according to claim 1, characterized in that: A sealing structure is also provided between the active valve core, the driven valve core and the housing.

4. The tandem vehicle thermal management integrated water valve according to claim 3, characterized in that: A smooth wear-resistant layer is provided on the inner surface of the sealing structure, and the smooth wear-resistant layer is slidably connected to the active valve core and the driven valve core.

5. The series-type vehicle thermal management integrated water valve according to claim 3, characterized in that: A positioning structure is provided on the outer surface of the sealing structure, and the positioning structure is used to be fixed to the housing to prevent the sealing structure from rotating with the active valve core or the driven valve core.

6. The tandem vehicle thermal management integrated water valve according to claim 1, characterized in that: The number of the driven valve core is at least one, and the active valve core and the driven valve core are respectively provided with at least two pipeline channel openings; the valve core channel is used to connect the at least two pipeline channel openings.

7. The tandem vehicle thermal management integrated water valve according to claim 1, characterized in that: An input shaft for connecting to an actuator is further provided on a side of the active valve core away from the driven valve core. The input shaft drives the active valve core to rotate and further drives the driven valve core to rotate.

8. The series-type vehicle thermal management integrated water valve according to claim 7, characterized in that: The sealing assembly includes a cover plate, a cover plate sealing ring and a shaft core sealing ring. The cover plate is detachably connected to the outer shell. The cover plate sealing ring is arranged between the cover plate and the outer shell. A bearing hole for the input shaft to pass through is also provided on the cover plate. The shaft core sealing ring is arranged between the bearing hole and the input shaft.

9. The tandem vehicle thermal management integrated water valve according to claim 8, characterized in that: The input shaft includes a raceway section and a sealing section. The raceway section and the bearing hole of the cover plate form center positioning and sliding friction. The sealing section and the inner circle of the shaft core sealing ring are elastically squeezed to form a rotating dynamic seal.

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