Multi-way valve, heat management module and automobile

Abstract

The embodiment of the invention discloses a multi-way valve, a heat management module and an automobile, relates to the technical field of valves, and reduces the size of the multi-way valve. The multi-way valve comprises a valve body, and at least two valve elements, a gear shifting mechanism and a driving piece which are all arranged in the valve body. The shifting gear set comprises a shifting gear, a first incomplete gear and a second incomplete gear, wherein the first incomplete gear and the second incomplete gear are coaxially arranged. The first incomplete gear can be meshed with the center-gear gear or rotate relative to the center-gear gear. The second incomplete gear can be meshed with the gear shifting gear or rotate relative to the gear shifting gear. The multiple valve elements are in transmission connection with the at least one center gear and the gear shifting gears in the at least one gear shifting gear set. And the driving piece is in transmission connection with the first incomplete gear and the second incomplete gear in the at least one shifting gear set. The driving piece drives the first incomplete gear and the second incomplete gear to rotate, so that the at least one center gear and the gear shifting gears in the at least one gear shifting gear set drive the corresponding valve elements to rotate or be locked.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a multi-way valve, a thermal management module and an automobile. Background Art

[0002] In the thermal management system of new energy vehicles, multi-way valves are usually required to control the cooling circuit. Multi-way valves are relatively common components in the field of fluid control, and the most common structures are rotary and plunger types. With the increase in user demand, new energy vehicles have more switching mode requirements to improve driving experience. Therefore, it is necessary to make multi-way valves applicable to more complex piping systems without reducing the design layout space of the entire vehicle. However, the existing multi-way valves are large in size, and a large space needs to be reserved in the vehicle body. Summary of the invention

[0003] The embodiments of the present application provide a multi-way valve, a thermal management module and a car, which reduce the volume of the existing multi-way valve.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a multi-way valve. The multi-way valve includes a valve body, at least two (hereinafter referred to as multiple for ease of description) valve cores, a shift mechanism and a drive member. Among them, multiple valve cores, shift mechanisms and drive members are all arranged in the valve body. The shift mechanism includes at least one central gear and at least one shift gear set. The shift gear set includes a first incomplete gear, a second incomplete gear and a shift gear. The first incomplete gear is coaxially arranged with the second incomplete gear. The coaxial arrangement means that the first incomplete gear and the second incomplete gear are arranged on the same connecting shaft. The first incomplete gear and the second incomplete gear can rotate simultaneously. The first incomplete gear is used to mesh with the central gear or rotate relative to the central gear. The second incomplete gear is used to mesh with the shift gear or rotate relative to the shift gear. Multiple valve cores are respectively connected to at least one central gear and the shift gear in at least one shift gear set. The above-mentioned drive member is connected to the first incomplete gear and the second incomplete gear in at least one shift gear set. The drive member can drive the first incomplete gear and the second incomplete gear to rotate simultaneously. That is, the first incomplete gear and the second incomplete gear are both active gears. The center gear and the shift gear are both driven gears. Therefore, the above-mentioned "rotation relative to the center gear" refers to the rotation of the first incomplete gear, while the center gear remains stationary. The above-mentioned "rotation relative to the shift gear" refers to the rotation of the second incomplete gear, while the shift gear remains stationary. The driving member can drive the first incomplete gear and the second incomplete gear to rotate, so that at least one center gear drives the corresponding valve core to rotate or lock (the "corresponding" here refers to the valve core connected to the center gear transmission), and at least one shift gear in the shift gear group drives the corresponding valve core to rotate or lock (the "corresponding" here refers to the valve core connected to the shift gear transmission).

[0006] Therefore, compared with a multi-way valve that uses multiple driving members and multiple shifting mechanisms to drive multiple valve cores respectively, the multi-way valve of the embodiment of the present application uses one driving member and drives multiple valve cores to rotate through at least one central gear and at least one shifting gear set in a shifting mechanism, which can switch multiple valve cores to perform different connection states, realize multiple switching modes, and is suitable for complex piping systems. The above-mentioned shifting gear set includes a first incomplete gear and a second incomplete gear coaxially arranged, and a shifting gear, which has a compact structure and a small size. Thus, the size of the multi-way valve is reduced, and there is no need to reserve a large space in the body of the car, and the cost is low. In addition, the precision adjustment of the driving member and the shifting mechanism only needs to be performed once, which shortens the calibration time of the multi-way valve and improves the calibration accuracy.

[0007] Based on the structure of the multi-way valve, in some embodiments of the present application, the center gear can be a complete gear. The first incomplete gear includes a first toothed segment and a toothless segment, and the first toothed segment and the toothless segment are arranged along the circumferential direction. The first toothed segment is used to mesh with the center gear, and the diameter of the toothless segment is smaller than the pitch circle diameter of the first toothed segment. Therefore, when the toothless segment is opposite to the center gear, the toothless segment does not contact the center gear, that is, it is arranged at intervals. When the driving member drives the first toothed segment of the first incomplete gear to mesh with the center gear, the center gear drives the corresponding valve core to rotate to switch the connection state of the valve core. When the driving member drives the first incomplete gear to switch from the first toothed segment meshing with the center gear to the toothless segment being opposite to the center gear, the first incomplete gear continues to rotate and the center gear stops rotating. Therefore, the center gear is locked with the corresponding valve core. The valve core maintains the current connection state. The structure of the first incomplete gear is relatively simple. After the entire first toothed segment of the first incomplete gear is meshed with the center gear, the center gear can drive the corresponding valve core to switch to a connected state. Therefore, the valve core can be a three-way valve core or a two-way valve, and the size of the valve core is not large.

[0008] Furthermore, in some embodiments of the present application, the shift gear includes a plurality of gear tooth segments and a plurality of locking arc segments, and the plurality of gear tooth segments and the plurality of locking arc segments are staggered in the circumferential direction. The second incomplete gear includes a second toothed segment and an arcuate segment, and the second toothed segment and the arcuate segment are arranged in the circumferential direction. The second toothed segment is used to mesh with any gear tooth segment, and the arcuate segment is used to be arranged at intervals with any locking arc segment. When the driving member drives the second toothed segment of the second incomplete gear to mesh with any gear tooth segment of the shift gear, the shift gear drives the corresponding valve core to rotate to switch the connection state of the valve core. When the driving member drives the second incomplete gear to switch from the second toothed segment meshing with any gear tooth segment of the shift gear to the arcuate segment rotating relative to the locking arc segment, the shift gear and the corresponding valve core are locked. Every time the second incomplete gear switches from meshing with a gear tooth segment of the shift gear to being opposite to the arc segment, the shift gear can drive the corresponding valve core to switch to a connected state. Therefore, the valve core can be a multi-way valve core, such as a five-way valve, a six-way valve, a seven-way valve or an eight-way valve, etc., which can ensure that the flow area is sufficient and the volume of the valve core is not large. Therefore, the multi-way valve of the embodiment of the present application can be applied to complex connection scenarios. In addition, the structural design of the shift gear is ingenious, the shifting is reliable, and the volume is small.

[0009] It should be noted that, in some embodiments, the shift gear may also be a complete gear. After the entire second toothed segment of the second incomplete gear is meshed with the shift gear, the shift gear may drive the corresponding valve core to switch to a connected state. At this time, the valve core may be a two-way valve or a three-way valve core.

[0010] In some working conditions, when the multi-way valve is required to perform a switching action, only one valve core can move, while the other valve cores need to be locked. In order to meet this demand, a locking structure needs to be provided. In some embodiments of the present application, the locking structure includes an operating part provided on the second incomplete gear, a locking part provided on the center gear gear, and a connecting part provided on the inner wall of the valve body and cooperating with the locking part. When the second toothed segment of the second incomplete gear is meshed with a gear segment of the shift gear, the operating part of the second incomplete gear can simultaneously push the locking part of the center gear gear to cooperate with the connecting part of the valve body, so that the center gear gear and the corresponding valve core are locked. The valve core corresponding to the center gear gear is the first valve core, and the valve core corresponding to the shift gear is the second valve core. The first valve core and the center gear gear both remain stationary. Thus, the function of locking the first valve core when the second valve core rotates is realized. When the first toothed segment of the first incomplete gear is meshed with the center gear gear, the toothless segment of the second incomplete gear is opposite to the shift gear and is arranged at intervals, so that the shift gear and the second valve core are locked. Thus, the function of the first valve core being locked by the second valve core when rotating is achieved.

[0011] There are many implementation schemes of the locking structure. In some embodiments of the present application, the projection of the second incomplete gear on the plane where the center gear is located overlaps with the center gear. The operating part is an operating cam arranged on a partial area of ​​the end surface of the second incomplete gear close to the center gear. The locking part is a locking protrusion arranged on the gear shaft of the center gear. The connecting part is a connecting groove arranged on the inner wall of the valve body. The driving member drives the second incomplete gear to rotate. When the relative rotation between the arc segment and a locking arc segment is switched to the engagement of the second toothed segment with a gear tooth segment of the shift gear, the operating cam starts to push the center gear, and at the same time, the first incomplete gear drives the center gear to rotate to a position where the locking protrusion is opposite to the connecting groove. Then, the operating cam clamps the locking protrusion of the center gear in the connecting groove. The locking structure is simple and exquisite in design, and the locking force is reliable. In addition, the positions of the locking groove and the locking protrusion can be interchanged, and the present application does not limit this.

[0012] Based on the design of the above locking structure, if the second incomplete gear is located above or on the side of the center gear, when the operating cam is removed from the center gear, an auxiliary structure is required to push the locking protrusion of the center gear out of the connecting groove. Therefore, in order to solve this problem, in some embodiments of the present application, the above shift mechanism also includes a reset member, which is sleeved outside the gear shaft of the center gear. In addition, the reset member is connected to the center gear and the valve body respectively. When the second incomplete gear rotates until the operating cam pushes the center gear, the locking protrusion is engaged with the connecting groove, and the reset member is deformed at the same time. When the second incomplete gear rotates until the operating cam is removed from the center gear, the deformation force of the reset member pushes the second incomplete gear to move so that the locking protrusion is removed from the connecting groove. Thus, the reset member can realize the function of automatically resetting the center gear. The reset member can be an elastic member such as a spring or a shrapnel, which has a low cost.

[0013] In addition, the internal sealing performance of the multi-way valve is also crucial. In some embodiments of the present application, the multi-way valve further includes at least two sets of sealing components, and the at least two sets of sealing components seal at least two valve cores with the valve body, respectively. Thereby, the sealing of each valve core is achieved. It is understandable that the number of sealing components in the multi-way valve can be equal to the number of valve cores. For example, multiple valve cores are sealed and connected to the valve body in a one-to-one correspondence through multiple sealing components.

[0014] Furthermore, in order to ensure that the internal sealing performance of the multi-way valve is excellent, in some embodiments of the present application, the above-mentioned sealing assembly includes a first cylindrical seal, a second cylindrical seal and a third cylindrical seal, and the first cylindrical seal, the second cylindrical seal and the third cylindrical seal are sequentially sleeved on the outside of the valve core from the inside to the outside. The first cylindrical seal is sealed to the valve core, and the third cylindrical seal is sealed to the inner wall of the valve body. The first cylindrical seal and the third cylindrical seal are both hard seals. The second cylindrical seal is a soft seal. The first cylindrical seal can reduce the friction torque of the valve core and increase the life of the sealing assembly. The second cylindrical seal can provide compensating elastic force for the valve core to prevent the valve core from leaking or getting stuck at high temperature. The third cylindrical seal provides a stable sealing frame for the entire sealing assembly. Thereby, low internal leakage and low torque switching of each mode of the multi-way valve is achieved.

[0015] Based on the structure of the sealing assembly, in some embodiments, the sealing assembly includes a plurality of second cylindrical seals, which are sequentially stacked between the first cylindrical seal and the third cylindrical seal. The plurality of second cylindrical seals can provide sufficient compensating elastic force to the valve core, further preventing the valve core from leaking or getting stuck due to high temperature.

[0016] In other embodiments, the sealing assembly includes a plurality of second cylindrical seals and a plurality of third cylindrical seals, and the plurality of second cylindrical seals and the plurality of third cylindrical seals are arranged in sequence and alternately outside the first cylindrical seal. That is, the first cylindrical seal, the second cylindrical seal, the third cylindrical seal, the second cylindrical seal, the third cylindrical seal, ..., the second cylindrical seal, the third cylindrical seal are arranged in sequence outside the valve core. The plurality of second cylindrical seals arranged at intervals can provide sufficient compensating elastic force for the valve core, further preventing the valve core from leaking or getting stuck at high temperature. The plurality of third cylindrical seals arranged at intervals can provide a stable sealing frame for the plurality of second cylindrical seals.

[0017] Furthermore, in some embodiments of the present application, the multi-way valve includes a plurality of valve cores. Accordingly, the shift mechanism includes a plurality of shift gear sets and a plurality of center gears, and the plurality of shift gear sets and the plurality of center gears are arranged in an interlaced manner. The shift gears and the plurality of center gears in the plurality of shift gear sets are respectively connected to the plurality of valve cores by transmission. Each shift gear set also includes a transmission gear, and the transmission gear is coaxially arranged with the first incomplete gear and the second incomplete gear. That is, the transmission gear and the first incomplete gear and the second incomplete gear are arranged on the same connecting shaft. One of the plurality of shift gear sets is the first shift gear set. The driving member is connected to the first incomplete gear and the second incomplete gear in the first shift gear set by transmission through the transmission gear in the first shift gear set. The transmission gears in all the remaining shift gear sets except the first shift gear set are respectively meshed with the adjacent center gears. Thus, the purpose of driving a plurality of valve cores by one driving member is achieved, and the structure of the shift mechanism is relatively compact.

[0018] In the second aspect, an embodiment of the present application provides a thermal management module, which includes multiple pipes and the multi-way valve described in the above embodiment. The valve body of the multi-way valve is provided with multiple flow ports, and the multiple flow ports are respectively connected to multiple pipes. Since the multi-way valve in the thermal management module of the embodiment of the present application has the same structure as the multi-way valve described in the above embodiment, both can solve the same technical problems and obtain the same technical effects, which will not be repeated here.

[0019] In a third aspect, an embodiment of the present application provides an automobile, comprising a vehicle body and the thermal management module described in the above embodiment. The thermal management module is arranged in the vehicle body. Since the thermal management module in the automobile of the embodiment of the present application has the same structure as the thermal management module described in the above embodiment, both can solve the same technical problems and obtain the same technical effects, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to illustrate the technical solution of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-way valve according to an embodiment of the present application;

[0022] Figure 2 This is one of the partial exploded structural schematic diagrams of the multi-way valve according to the embodiment of the present application;

[0023] Figure 3 This is one of the structural schematic diagrams of the shift mechanism and the driving member in the multi-way valve of the embodiment of the present application;

[0024] Figure 4 A schematic diagram comparing the multi-way valve in the embodiment of the present application with the multi-way valve in the related art;

[0025] Figure 5 It is an exploded schematic diagram of a first incomplete gear, a second incomplete gear and a transmission gear in a multi-way valve in an embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the assembly of the first incomplete gear, the second incomplete gear and the transmission gear in the multi-way valve of the embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the structure of two shift gear sets, a central gear gear and a driving member in a multi-way valve according to an embodiment of the present application;

[0028] Figure 8 This is a schematic diagram of the structure of two shift gear sets, two center gear gears and a driving member in a multi-way valve according to an embodiment of the present application;

[0029] Fig. 9 This is a schematic diagram of the three-dimensional structure of the first incomplete gear in the multi-way valve of the embodiment of the present application;

[0030] Fig.10 This is one of the structural schematic diagrams of the shift mechanism in the multi-way valve of the embodiment of the present application;

[0031] Fig.11 This is the second structural schematic diagram of the shift mechanism in the multi-way valve of the embodiment of the present application;

[0032] Fig.12 This is a schematic diagram of the three-dimensional structure of the second incomplete gear in the multi-way valve of the embodiment of the present application;

[0033] Fig.13 This is a schematic diagram of the structure of the shift gear in the multi-way valve of the embodiment of the present application;

[0034] Fig.14 for Fig.13 A magnified view of part A in FIG.

[0035] Fig.15 This is the third structural schematic diagram of the shift mechanism in the multi-way valve of the embodiment of the present application;

[0036] Fig.16 This is a schematic diagram of the three-dimensional structure of the second valve core in the multi-way valve of the embodiment of the present application;

[0037] Fig.17 This is a schematic diagram of the three-dimensional structure of a shift gear set in a multi-way valve according to an embodiment of the present application;

[0038] Fig.18 It is a partial cross-sectional schematic diagram of the multi-way valve according to an embodiment of the present application;

[0039] Fig.19 This is one of the cross-sectional schematic diagrams of the multi-way valve according to an embodiment of the present application;

[0040] Fig. 20 This is the second structural schematic diagram of the shift mechanism and the driving member in the multi-way valve of the embodiment of the present application;

[0041] Fig.21 This is a schematic diagram of the explosion structure of the multi-way valve according to an embodiment of the present application;

[0042] Fig. 22 This is the second schematic diagram of a partial explosion structure of the multi-way valve according to an embodiment of the present application;

[0043] Fig.23 This is the second cross-sectional schematic diagram of the multi-way valve according to the embodiment of the present application;

[0044] Fig.24 This is a schematic diagram of an explosion of a sealing assembly in a multi-way valve according to an embodiment of the present application.

[0045] Figure Number:

[0046] 100-multi-way valve; 1-valve body; 101-flow port; 102-installation cavity; 103-connecting part; 2-valve core; 201-communication port; 2a-first valve core; 2b-second valve core; 3-shift mechanism; 31 / 31a / 31b-center gear; 311-locking part; 32 / 32a / 32b-shift gear set; 321-first incomplete gear; 3211-first toothed segment; 3212-toothless segment; 322-second incomplete gear; 3221-second toothed segment; 3222 -arc surface segment; 3223-operating part; 323-shift gear; 3231-tooth segment; 3232-locking arc segment; 324-transmission gear; 33-reset member; 34-worm; 35-reduction gear set; 351-first gear; 352-second gear; 353-third gear; 354-fourth gear; 4-driving member; 5-top cover; 6-bottom shell; 7-sealing assembly; 701-avoidance hole; 71-first cylindrical seal; 72-second cylindrical seal; 73-third cylindrical seal. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0048] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0049] In addition, in the present application, directional terms such as "up", "down", "left", "right", "horizontal" and "vertical" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0050] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can refer to the connection of mechanical structure or physical structure. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be directly connected or indirectly connected through an intermediate medium. It can also be understood as the physical contact and electrical conduction of components, and it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as PCB copper foil or wires that can transmit electrical signals.

[0051] The embodiment of the present application includes a car, which may be a new energy car, a hybrid vehicle, or a fuel car, but the present application does not limit this.

[0052] In order to ensure that all components in the car work within the optimal temperature range, improve the comfort of the passenger environment in the car, and optimize the fuel and battery economy and emission performance of the vehicle, it is necessary to coordinate and control the heat of the whole vehicle and the ambient heat from the perspective of the system and the whole vehicle. Therefore, a thermal management module will be set up in the body of the car. For fuel vehicles, the thermal management module is mainly used to match, optimize and control related components and subsystems such as the cooling of the engine and gearbox and the air-conditioning system. For new energy vehicles and hybrid vehicles, the thermal management module is also used to match, optimize and control related components and subsystems such as the motor electronic control system and the battery system. In this way, each component in the car body is in the optimal temperature operating range, improving the economy and power of the whole vehicle and ensuring the safe driving of the vehicle.

[0053] The thermal management module mainly includes water pumps, valves, compressors, heaters, electronic fans, expansion valves, evaporators, condensers, water circuit substrates, refrigerant substrates, multiple pipes, and various valves. Taking new energy vehicles as an example, three-way water valves and four-way water valves have been maturely used in new energy vehicles. However, the existing three-way water valves and four-way water valves cannot reduce the layout space of the vehicle design and reduce the complexity of the pipelines. Therefore, multi-way valves are needed. In addition, in order to improve the driving experience, new energy vehicles have more and more switching mode requirements. However, the multi-way valve with a single valve core cannot meet the needs of more water circuit working modes. The existing multi-way valve with a double valve core is large in size, and a large space needs to be reserved in the vehicle body.

[0054] Therefore, in order to solve this problem, the embodiment of the present application provides a multi-way valve with a smaller volume. The multi-way valve can be applied to various media such as water, refrigerant, oil or gas, and the present application does not limit this.

[0055] Reference Figure 1 and Figure 2 The multi-way valve 100 of the embodiment of the present application includes a valve body 1, at least two (hereinafter referred to as multiple for ease of explanation) valve cores 2, a shift mechanism 3 and a drive member 4. Among them, a plurality of flow ports 101 are opened on the valve body 1, and the plurality of flow ports 101 are respectively connected to a plurality of pipelines. Thus, it is connected to components such as pumps and air-conditioning equipment in new energy vehicles. An installation cavity 102 is also formed in the valve body 1, and a plurality of valve cores 2, a shift mechanism 3 and a drive member 4 are all arranged in the installation cavity 102 of the valve body 1. A plurality of connecting ports 201 are opened on each valve core 2, and the plurality of connecting ports 201 can be respectively connected to the plurality of flow ports 101. The orientations of the plurality of valve cores 2 in the valve body 1 are different, and the connection states of the plurality of connecting ports 201 are different. That is, different pipeline connections can be achieved by switching the valve core 2 to different orientations. In addition, the multi-way valve 100 may also include a top cover 5 and a bottom shell 6, and the top cover 5 can close the opening on one side of the installation cavity 102, and the bottom shell 6 can close the opening on the other side of the installation cavity 102. As shown Figure 3 As shown, the shift mechanism 3 includes at least one central gear gear 31 and at least one shift gear set 32 ​​. Figure 2 and Figure 3 The multi-way valve 100 shown in FIG. 1 includes two valve cores 2, a central gear 31 and a shift gear set 32. Figure 2 and Figure 3 The structure shown is schematically described. The two valve cores 2 are respectively a first valve core 2a and a second valve core 2b.

[0056] The shift gear set 32 ​​includes a first incomplete gear 321, a second incomplete gear 322 and a shift gear 323. The first incomplete gear 321 and the second incomplete gear 322 are coaxially arranged. That is, the first incomplete gear 321 and the second incomplete gear 322 are arranged on the same connecting shaft and can rotate or lock at the same time. In order to simplify the description, the coaxial arrangement hereinafter refers to being arranged on the same connecting shaft. "Incomplete gear" means that only part of the area along the circumferential direction of the gear is distributed with gear teeth. The first incomplete gear 321 is used to mesh with the center gear 31 or rotate relative to the center gear 31. The second incomplete gear 322 is used to mesh with the shift gear 323 or rotate relative to the shift gear 323. The first valve core 2a is transmission-connected to the center gear 31. The second valve core 2b is transmission-connected to the shift gear 323 in the shift gear set 32. The driving member 4 is transmission-connected to the first incomplete gear 321 and the second incomplete gear 322 in the shift gear set 32. The driving member 4 can drive the first incomplete gear 321 and the second incomplete gear 322 to rotate at the same time. That is, the first incomplete gear 321 and the second incomplete gear 322 are both driving gears. The center gear gear 31 and the shift gear 323 are driven gears. Therefore, the above-mentioned "rotation relative to the center gear gear 31" means that the first incomplete gear 321 rotates, while the center gear gear 31 remains stationary. The above-mentioned "rotation relative to the shift gear 323" means that the second incomplete gear 322 rotates, while the shift gear 323 remains stationary. The driving member 4 can drive the first incomplete gear 321 and the second incomplete gear 322 to rotate, so that the center gear gear 31 drives the first valve core 2a to rotate or lock, and the shift gear 323 in the shift gear set 32 ​​drives the second valve core 2b to rotate or lock. The driving member 4 can specifically be a driving motor.

[0057] Compared to the multi-way valve 100 that uses two driving members 4 and two shifting mechanisms 3 to drive the valve cores 2a and 2b respectively, the multi-way valve 100 in the embodiment of the present application uses a driving member 4 to drive the first valve core 2a and the second valve core 2b to rotate through a central gear 31 and a shifting gear set 32 ​​in a shifting mechanism 3, which can switch the first valve core 2a and the second valve core 2b to perform various connection states and realize multiple switching modes, which is suitable for complex piping systems. The shifting gear set 32 ​​includes a first incomplete gear 321 and a second incomplete gear 322 coaxially arranged, and a shifting gear 323. The shifting gear set 32 ​​has a compact structure and a small size. In addition, the small number of driving members 4 can significantly reduce the size of the multi-way valve 100 and reduce costs. For example, the space occupied by the driving member 4 and the shifting mechanism 3 can be reduced by 30%, and the length of the valve body 1 can be shortened from 134mm to 90mm. Figure 4As shown. The cost of the multi-way valve 100 can be reduced by 15 yuan. At the same time, the multi-way valve 100 that uses two driving members 4 and two sets of shifting mechanisms 3 to drive two valve cores 2 respectively needs to be calibrated twice, while the precision adjustment of the driving member 4 and the shifting mechanism 3 of the multi-way valve 100 in the embodiment of the present application only needs to be adjusted once. Therefore, compared with the former, the multi-way valve 100 in the embodiment of the present application shortens the calibration time of the multi-way valve 100 and improves the calibration accuracy of the multi-way valve 100.

[0058] Furthermore, the driving member (such as a motor) in the multi-way valve 100 can be electrically connected to a driving member controller (such as a motor control board), and the driving member controller is connected to a power source. When the multi-way valve 100 of the present application is used for passage switching, the output power of the driving member can be adjusted by the driving member controller to perform the shifting of the first valve core 2a and the opening adjustment of the flow port 101, and the shifting of the second valve core 2b and the opening adjustment of the flow port 101. Thus, the output flow of the multi-way valve 100 is adjusted.

[0059] It is understandable that the above-mentioned multi-way valve 100 needs to connect different pipelines, and needs to use different numbers of valve cores 2. If the multi-way valve 100 includes multiple valve cores 2, the shift mechanism 3 includes multiple shift gear sets 32 and multiple center gear gears 31, and the multiple shift gear sets 32 and the multiple center gear gears 31 are staggered. That is, the shift gear sets 32, the center gear gears 31, the shift gear sets 32,..., the shift gear sets 32, the center gear gears 31 (shift gear sets 32) are distributed like this. The shift gears 323 in the multiple shift gear sets 32 and the multiple center gear gears 31 are respectively connected to the multiple valve cores 2 in transmission. Each shift gear set 32 ​​also includes the following: Figure 3 , Figure 5 and Figure 6 The transmission gear 324 shown in the figure is coaxially arranged with the first incomplete gear 321 and the second incomplete gear 322. That is, the transmission gear 324, the first incomplete gear 321 and the second incomplete gear 322 are arranged on the same connecting shaft. The transmission gear 324, the first incomplete gear 321 and the second incomplete gear 322 can rotate or lock at the same time. One of the shifting gear sets 32 is as follows. Figure 7 The first shift gear set 32a shown in FIG. The driving member 4 is connected to the first incomplete gear 321 and the second incomplete gear 322 in the first shift gear set 32a through the transmission gear 324 in the first shift gear set 32a. The transmission gears 324 in the other shift gear sets 32 except the first shift gear set 32a among the multiple shift gear sets 32 are meshed with the adjacent central gear position gear 31. Thus, the purpose of driving multiple valve cores 2 by one driving member 4 is achieved, and the structure of the shift mechanism 3 is relatively compact.

[0060] Therefore, if the multi-way valve 100 includes N valve cores 2, N>2 and is an odd number, the shift mechanism 3 may include (N-1) / 2 center gears 31 and (N+1) / 2 shift gear sets 32. The (N-1) / 2 center gears 31 are respectively arranged between two adjacent shift gear sets 32 in the (N+1) / 2 shift gear sets 32. In addition, the N valve cores 2 are respectively connected to the (N-1) / 2 center gears 31 and the shift gears 323 in the (N+1) / 2 shift gear sets 32. One of the shift gear sets 32 in the (N+1) / 2 shift gear sets 32 is the first shift gear set 32a. The driving member 4 is connected to the first incomplete gear 321 and the second incomplete gear 322 in the first shift gear set 32a through the transmission gear 324 in the first shift gear set 32a. In the remaining (N−1) / 2 shifting gear sets 32 , the transmission gear 324 in each shifting gear set 32 ​​is respectively meshed with the central gear position gear 31 in another adjacent shifting gear set 32 ​​.

[0061] If the multi-way valve 100 includes M valve cores 2, M>2 and is an even number, the shift mechanism 3 may include M / 2 center gears 31 and M / 2 shift gear sets 32. The M / 2 center gears 31 and the M / 2 shift gear sets 32 are arranged in a staggered manner (such as in a straight line or a curve). The M valve cores 2 are respectively connected to the M / 2 center gears 31 and the shift gears 323 in the M / 2 shift gear sets 32. One of the M / 2 shift gear sets 32 is the first shift gear set 32a. The driving member 4 is connected to the first incomplete gear 321 and the second incomplete gear 322 in the first shift gear set 32a through the transmission gear 324 in the first shift gear set 32a. In the remaining M / 2-1 shift gear sets 32, the transmission gear 324 in each shift gear set 32 ​​is respectively meshed with the center gear 31 in another adjacent shift gear set 32.

[0062] For example, the multi-way valve 100 includes three valve cores 2, and the shift mechanism 3 may include: Figure 7The central gear 31 and two shift gear sets 32 are shown, and the three valve cores 2 are respectively connected to the central gear 31 and the shift gears 323 in the two shift gear sets 32. The two shift gear sets 32 are respectively the first shift gear set 32a and the second shift gear set 32b. The first shift gear set 32a and the second shift gear set 32b can be arranged at intervals along the circumference of the central gear 31. The transmission gear 324 in the first shift gear set 32a is connected to the driving member 4 to drive the first incomplete gear 321 and the second incomplete gear 322 in the first shift gear set 32a to rotate. The central gear 31 is meshed with the transmission gear 324 in the second shift gear set 32a and the first incomplete gear 321 in the first shift gear set 32a.

[0063] For example, the multi-way valve 100 includes four valve cores 2, and the shift mechanism 3 may include: Figure 8 The two center gears 31 and the two shift gear sets 32 shown in the figure, the four valve cores 2 are respectively connected to the two center gears 31 and the shift gears 323 in the two shift gear sets 32. The two shift gear sets 32 are respectively the first shift gear set 32a and the second shift gear set 32b. The two center gears 31 are respectively the center gear 31a and the center gear 31b. The center gear 31a is located between the first shift gear set 32a and the second shift gear set 32b. The center gear 31a is meshed with the first incomplete gear 321 in the first shift gear set 32a and the transmission gear 324 in the second shift gear set 32b. The center gear 31b is meshed with the first incomplete gear 321 in the second shift gear set 32b. The driving member 4 is in driving connection with the transmission gear 324 in the first shifting gear set 32a to drive the first incomplete gear 321 and the second incomplete gear 322 in the first shifting gear set 32a to rotate. The first incomplete gear 321 can drive the center gear 31a to rotate, and the center gear 31a drives the first incomplete gear 321 and the second incomplete gear 322 in the second shifting gear set 32b to rotate through the transmission gear 324 in the second shifting gear set 32b. Thus, the center gear 31b in the second shifting gear set 32b is driven to rotate.

[0064] The above is a brief description of the multi-way valve 100 including two or more valve cores 2, one or more center gears 31, and one or more shift gear sets 32. Based on the structure of the multi-way valve 100, in order to achieve the purpose of driving the first valve core 2a through the first incomplete gear 321 and the center gear 31, the first incomplete gear 321 can be set to a variety of incomplete gear structures. For example, Fig. 9As shown, the first incomplete gear 321 includes a first toothed segment 3211 and a toothless segment 3212, and the first toothed segment 3211 and the toothless segment 3212 are arranged along the circumferential direction. The first toothed segment 3211 is used to mesh with the center gear 31. The diameter of the toothless segment 3212 can be smaller than the pitch circle diameter of the first toothed segment 3211. Therefore, when the toothless segment 3212 is opposite to the center gear 31, the toothless segment 3212 does not contact the center gear 31, that is, it is arranged at an interval. The center gear 31 is a complete gear. A complete gear means that gear teeth are distributed on the entire circumferential surface of the gear.

[0065] like Fig.10 As shown, when the driving member 4 drives the first toothed segment 3211 of the first incomplete gear 321 to mesh with the center gear 31, the center gear 31 drives the first valve core 2a to rotate to switch the communication state of the first valve core 2a.

[0066] like Fig.10 and Fig.11 As shown, when the driving member 4 drives the first incomplete gear 321 to switch from the first toothed segment 3211 meshing with the center gear 31 to the toothless segment 3212 being opposite to the center gear 31, the first incomplete gear 321 rotates and the center gear 31 stops rotating. Therefore, the center gear 31 is locked with the first valve core 2a. The first valve core 2a maintains the current connected state. The structure of the first incomplete gear 321 is relatively simple. The center gear 31 can be a complete gear. After all the first toothed segments 3211 of the first incomplete gear 321 are meshed with the center gear 31, the center gear 31 can drive the first valve core 2a to switch a connected state. Therefore, in order to keep the volume of the first valve core 2a compact, the first valve core 2a can be a three-way valve core or a two-way valve. Figure 2 The first valve core 2a shown is a three-way valve core.

[0067] It should be noted that the first toothed segment 3211 and the toothless segment 3212 on the first incomplete gear 321 can both be one. Fig. 9 Alternatively, the first toothed segment 3211 and the toothless segment 3212 on the first incomplete gear 321 may be multiple and staggered, so as to be applicable to more complex pipeline connection scenarios.

[0068] In addition, in order to achieve the purpose of driving the second valve core 2b through the second incomplete gear 322 and the shift gear 323, the second incomplete gear 322 can be set to a variety of incomplete gear structures, and the shift gear 323 can also be set to a complete gear or an incomplete gear.

[0069] In some embodiments, Fig.12As shown, the second incomplete gear 322 includes a second toothed segment 3221 and an arcuate segment 3222, and the second toothed segment 3221 and the arcuate segment 3222 are arranged along the circumferential direction. Fig.13 and Fig.14 As shown, the shift gear 323 includes a plurality of gear tooth segments 3231 and a plurality of locking arc segments 3232, and the plurality of gear tooth segments 3231 and the plurality of locking arc segments 3232 are sequentially arranged in an interlaced manner along the circumferential direction. The second toothed segment 3221 of the second incomplete gear 322 is used to mesh with any gear tooth segment 3231, and the arc segment 3222 of the second incomplete gear 322 is used to be arranged at intervals with any locking arc segment 3232.

[0070] like Fig.11 As shown, when the driving member 4 drives the second toothed segment 3221 of the second incomplete gear 322 to mesh with a gear tooth segment 3231 of the shift gear 323, the shift gear 323 drives the second valve core 2b to rotate to switch the communication state of the second valve core 2b.

[0071] like Fig.15 As shown, when the driving member 4 drives the second incomplete gear 322 to switch from the second toothed segment 3221 meshing with any gear tooth segment 3231 of the shift gear 323 to the arc segment 3222 rotating relative to the locking arc segment 3232, the shift gear 323 and the second valve core 2b are locked.

[0072] When the second incomplete gear 322 switches from meshing with a gear tooth segment 3231 of the shift gear 323 to rotating 3232 with the arc segment 3222 relative to the locking arc segment, the shift gear 323 can drive the second valve core 2b to switch to a connection state. The number of communication ports 201 in the second valve core 2b (i.e., the number of connections of the second valve core 2b) can be equal to the number of gear tooth segments 3231 and the number of locking arc segments 3232. Therefore, the number of connections of the second valve core 2b can be more, such as a five-way valve, a six-way valve, a seven-way valve or an eight-way valve, etc., and the volume of the second valve core 2b can be smaller on the basis of ensuring sufficient flow area. Figure 2 and Fig.16 The second valve core 2 b shown is an eight-way valve, and the multi-way valve 100 is a nine-way valve.

[0073] Therefore, the multi-way valve 100 of the embodiment of the present application can be applied to complex communication scenarios. In addition, the shift gear 323 has a delicate structural design, reliable shifting, and a small size. The opening of the communication port 201 of the second valve core 2b can be adjusted accurately.

[0074] In addition, in some other embodiments, the shift gear 323 may also adopt a complete gear structure. After all the second toothed segments 3221 of the second incomplete gear 322 are meshed with the shift gear 323, the shift gear 323 can drive the corresponding valve core 2 to switch to a connected state. Therefore, the number of passes of the second valve core 2b can be less, such as a three-way valve core or a two-way valve, and the volume of the second valve core 2b can be smaller on the basis of ensuring sufficient flow area.

[0075] It is understandable that the multiple valve cores 2 in the multi-way valve 100 can be switched simultaneously or individually, and the present application does not limit this. In order to adapt to the working condition that only one valve core 2 can move at the same time and the other valve cores 2 need to be locked, a locking structure needs to be provided. In some embodiments of the present application, the above-mentioned locking structure includes the following: Fig.12 and Fig.17 The operation unit 3223 shown in FIG. Fig.18 The locking portion 311 and the connecting portion 103 are shown. The operating portion 3223 is arranged on the second incomplete gear 322. The locking portion 311 is arranged on the central gear 31. The connecting portion 103 is arranged in the valve body 1 and can cooperate with the locking portion 311.

[0076] When the second toothed segment 3221 of the second incomplete gear 322 meshes with a gear segment 3231 of the shift gear 323, the operating portion 3223 of the second incomplete gear 322 can simultaneously push the locking portion 311 of the center gear position gear 31 to cooperate with the connecting portion 103 of the valve body 1, so that the center gear position gear 31 and the first valve core 2a are locked. The first valve core 2a and the center gear position gear 31 remain stationary. Thus, the function of locking the first valve core 2a when the second valve core 2b rotates is achieved. When the first toothed segment 3211 of the first incomplete gear 321 meshes with the center gear position gear 31, the toothless segment 3222 of the second incomplete gear 322 is opposite to the shift gear 323 and is spaced apart, so that the shift gear 323 and the second valve core 2b are locked. Thus, the function of locking the first valve core 2a by the second valve core 2b when the first valve core 2a rotates is achieved. The multi-way valve 100 of the embodiment of the present application can achieve self-locking of the dual valve cores through a single motor without relying on a worm gear mechanism for self-locking.

[0077] Furthermore, there may be multiple specific implementations of the above locking structure. Fig.17, the projection of the second incomplete gear 322 on the plane where the center gear 31 is located partially overlaps with the center gear 31. The operating portion 3223 is an operating cam arranged on a partial area of ​​the second incomplete gear 322 near the end surface of the center gear 31. The locking portion 311 is a locking protrusion arranged on the gear shaft of the center gear 31. The connecting portion 103 is a connecting groove provided on the inner wall of the valve body 1. The driving member 4 drives the second incomplete gear 322 to rotate. When the relative rotation between the arc segment 3222 and a locking arc segment 3232 is switched to the engagement between the second toothed segment 3221 and a gear tooth segment 3231 of the shift gear 323, the operating cam starts to push the center gear 31, and at the same time, the first incomplete gear 321 drives the center gear 31 to rotate to a position where the locking protrusion is opposite to the connecting groove. Then, the operating cam pushes the center gear 31 to clamp the locking protrusion of the center gear 31 in the connecting groove. The locking structure has a simple structure, a sophisticated design and a reliable locking force.

[0078] It should be noted that the positions of the locking groove and the locking protrusion can also be interchanged. That is, the locking portion 311 is a locking groove provided on the gear shaft of the center gear 31. The connecting portion 103 is a connecting protrusion provided on the inner wall of the valve body 1. This application does not limit this.

[0079] by Fig.17 The end surface of the second incomplete gear 322 opposite to the center gear 31 can be Fig.17 The lower end face shown may also be the upper end face. When the orientation of the second incomplete gear 322 and the center gear 31 changes, the end face of the second incomplete gear 322 opposite to the center gear 31 may change accordingly. If the second incomplete gear 322 is located above or on the side of the center gear 31, an auxiliary structure is required to push the locking protrusion of the center gear 31 out of the connecting groove when the operating cam is removed from the center gear 31. Therefore, in order to solve this problem, in some embodiments of the present application, the shift mechanism 3 further includes: Fig.19 The reset member 33 shown is sleeved outside the gear shaft of the center gear 31. In addition, the reset member 33 is connected to the center gear 31 and the valve body 1 respectively. When the second incomplete gear 322 rotates until the operating cam pushes the center gear 31, the locking protrusion is engaged with the connecting groove, and the reset member 33 is deformed at the same time. When the second incomplete gear 322 rotates until the operating cam moves away from the center gear 31, the deformation force of the reset member 33 pushes the second incomplete gear 322 to move, so that the locking protrusion moves out of the connecting groove. Thus, the reset member 33 can realize the function of automatically resetting the center gear 31, and the structure is simple.

[0080] It is understandable that, when the second incomplete gear 322 is located below the center gear 31, the locking protrusion can be moved out of the connection groove by the gravity of the reset member 33 and the center gear 31; or the locking protrusion can be moved out of the connection groove only by the gravity of the center gear 31. Moreover, the reset member 33 can be an elastic member such as a spring or a spring sheet, which is cheap and has a low cost.

[0081] Furthermore, in some embodiments of the present application, the above-mentioned shift mechanism 3 further includes: Fig. 20 The worm 34 and the reduction gear set 35 shown are arranged such that the worm 34 is mounted on the output shaft of the driving member 4. The driving member 4 can drive the worm 34 to rotate. The reduction gear set 35 is connected to the worm 34 in a transmission manner. The reduction gear set 35 is also connected to the transmission gear 324 in the shift gear set 32 ​​in a transmission manner.

[0082] There are many implementations of the reduction gear set 35. In some embodiments of the present application, for example Fig. 20 As shown, the reduction gear set 35 includes a first gear 351, a second gear 352, a third gear 353 and a fourth gear 354. The first gear 351 is meshed with the worm 34. The first gear 351 is coaxially arranged with the second gear 352. The third gear 353 is coaxially arranged with the fourth gear 354. The third gear 353 is meshed with the second gear 352, and the number of teeth of the third gear 353 is greater than the number of teeth of the second gear 352. The fourth gear 354 is meshed with the transmission gear 324, and the number of teeth of the transmission gear 324 is greater than the number of teeth of the fourth gear 354. Thus, multi-stage reduction can be achieved.

[0083] In addition, the internal sealing performance of the multi-way valve 100 is also important. Fig.21 , Fig. 22 and Fig.23 The multi-way valve 100 further includes at least two sets of sealing components 7 (hereinafter referred to as multiple for ease of explanation). The multiple sealing components 7 are respectively sleeved outside the multiple valve cores 2. The multiple sealing components 7 are sealedly connected to the valve body 1 and the multiple multi-way valves 100. Therefore, the multiple sealing components 7 can form a seal for the multiple valve cores 2, reducing the problem of internal leakage during the movement of the valve core 2.

[0084] It is understandable that the number of sealing components 7 in the multi-way valve 100 may be equal to the number of valve cores 2 , such as multiple valve cores 2 are sealed and connected to the valve body 1 in a one-to-one correspondence through multiple sealing components 7 . Each valve core 2 may be sealed by one sealing component 7 .

[0085] Furthermore, in order to ensure that the internal sealing performance of the multi-way valve 100 is excellent, in some embodiments of the present application, reference is made to Fig.21 and Fig.24The sealing assembly 7 includes a first cylindrical seal 71, a second cylindrical seal 72 and a third cylindrical seal 73. The first cylindrical seal 71, the second cylindrical seal 72 and the third cylindrical seal 73 are sequentially sleeved on the outside of the valve core 2 from the inside to the outside. The first cylindrical seal 71 is sealed with the valve core 2, and the third cylindrical seal 73 is sealed with the inner wall of the valve body 1. The first cylindrical seal 71 and the third cylindrical seal 73 are both hard seals. The second cylindrical seal 72 is a soft seal. The first cylindrical seal 71 can reduce the friction torque between the valve core 2 and the valve body 1, and improve the life of the sealing assembly 7 (such as increasing to 300,000 times, the life of the sealing assembly 7 is increased by 50%). The second cylindrical seal 72 provides compensating elastic force for the valve core 2 to prevent the valve core 2 from leaking (such as reducing internal leakage to 6ml / min, and the sealing performance is improved by 60%) or getting stuck at high temperature. The third cylindrical seal 73 provides a stable sealing frame for the entire sealing assembly 7. Thus, low internal leakage and low torque switching of each mode of the multi-way valve 100 are achieved. In addition, compared with a sealing assembly including two layers of seals and the seals having a lubricating coating, the sealing assembly of the embodiment of the present application has better sealing performance.

[0086] It should be noted that the first cylindrical sealing member 71, the second cylindrical sealing member 72 and the third cylindrical sealing member 73 are each provided with a plurality of Fig.24 The avoidance holes 701 shown correspond to the multiple communication ports 201 on the sleeved valve core 2 and the multiple flow ports 101 on the valve body 1. Thus, the first cylindrical seal 71, the second cylindrical seal 72 and the third cylindrical seal 73 can seal the outer periphery of the flow port 101 of the valve body 1 with the valve core 2.

[0087] Based on the structure of the sealing assembly 7, the performance of the sealing assembly 7 can be further improved. For example, the sealing assembly 7 includes a plurality of second cylindrical seals 72, and the plurality of second cylindrical seals 72 are sequentially sleeved between the first cylindrical seal 71 and the third cylindrical seal 73. The plurality of second cylindrical seals 72 can provide sufficient compensation elastic force for the valve core 2, further preventing the valve core 2 from leaking or being stuck at high temperature.

[0088] For another example, the sealing assembly 7 includes a plurality of second cylindrical seals 72 and a plurality of third cylindrical seals 73, and the plurality of second cylindrical seals 72 and the plurality of third cylindrical seals 73 are arranged in sequence and alternately outside the first cylindrical seal 71. That is, the first cylindrical seal 71, the second cylindrical seal 72, the third cylindrical seal 73, the second cylindrical seal 72, the third cylindrical seal 73, ..., the second cylindrical seal 72, the third cylindrical seal 73 are arranged in sequence outside the valve core 2. The plurality of second cylindrical seals 72 arranged at intervals can provide sufficient compensating elastic force for the valve core 2, further preventing the valve core 2 from leaking or being stuck at high temperature. The plurality of third cylindrical seals 73 arranged at intervals can provide a stable sealing frame for the plurality of second cylindrical seals 72 respectively.

[0089] It should be noted that the first cylindrical seal 71 can be a cylindrical seal made of materials such as polyvinylidene difluoride (PVDF) and polytetrafluoroethylene (PTEF), which has the advantages of self-lubrication and high strength. The second cylindrical seal 72 can be a cylindrical seal made of rubber material, or a spring or corrugated spring to have good elastic force. The third cylindrical seal 73 can be a cylindrical seal made of Japanese Industrial Standard 304 steel (SUS304) or polyetheretherketone PEEK (PEEK) material to have sufficient strength.

[0090] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A multi-way valve, characterized in that: It comprises a valve body, wherein the valve body is provided with: A shift mechanism, the shift mechanism comprising at least one shift gear set and at least one center gear; the shift gear set comprising a first incomplete gear and a second incomplete gear coaxially arranged, and a shift gear; the first incomplete gear is used to mesh with the center gear or rotate relative to the center gear, and the second incomplete gear is used to mesh with the shift gear or rotate relative to the shift gear; At least two valve cores, the at least two valve cores are respectively connected to the at least one central gear and the shift gear in the at least one shift gear set; A driving member, wherein the driving member is drivingly connected to the first incomplete gear and the second incomplete gear in the at least one shift gear set to drive the at least one center gear and the shift gear in the at least one shift gear set to respectively drive the corresponding valve core to rotate or lock.

2. The multi-way valve according to claim 1, characterized in that: The first incomplete gear comprises a first toothed segment and a toothless segment arranged along the circumferential direction, the first toothed segment is used to mesh with the center gear, and the diameter of the toothless segment is smaller than the pitch circle diameter of the first toothed segment; When the driving member drives the first toothed segment of the first incomplete gear to mesh with the central gear, the central gear drives the corresponding valve core to rotate; When the driving member drives the first incomplete gear to switch from the first toothed segment meshing with the center gear to the toothless segment being opposite to the center gear, the center gear and the corresponding valve core are locked.

3. The multi-way valve according to claim 1 or 2, characterized in that: The shift gear comprises a plurality of gear tooth segments and a plurality of locking arc segments staggered along the circumferential direction; the second incomplete gear comprises a second tooth segment and an arc segment arranged along the circumferential direction, the second tooth segment is used to mesh with the plurality of gear tooth segments respectively, and the arc segment is used to be arranged at intervals with any of the locking arc segments; When the driving member drives the second toothed segment of the second incomplete gear to mesh with any gear tooth segment of the shift gear, the shift gear drives the corresponding valve core to rotate; When the driving member drives the second incomplete gear to switch from the second toothed segment meshing with any of the gear tooth segments of the shift gear to the arc surface segment rotating relative to the locking arc segment, the shift gear and the corresponding valve core are locked.

4. The multi-way valve according to any one of claims 1 to 3, characterized in that: The second incomplete gear is provided with an operating portion, the central gear is provided with a locking portion, and the inner wall of the valve body is provided with a connecting portion that cooperates with the locking portion; When the second toothed segment of the second incomplete gear meshes with one of the gear tooth segments of the shift gear, the operating portion of the second incomplete gear pushes the locking portion of the center gear to cooperate with the connecting portion of the valve body, so that the center gear and the corresponding valve core are locked; When the first toothed segment of the first incomplete gear meshes with the central gear, the toothless segment of the second incomplete gear is opposite to and spaced from the shift gear, so that the shift gear and the corresponding valve core are locked.

5. The multi-way valve according to claim 4, characterized in that: The projection of the second incomplete gear on the plane where the center gear gear is located partially overlaps with the center gear gear, and the operating part is an operating cam arranged on a partial area of ​​the end face of the second incomplete gear close to the center gear gear; the locking part is a locking protrusion arranged on the gear shaft of the center gear gear, and the connecting part is a connecting groove arranged on the inner wall of the valve body; when the operating cam rotates to a position opposite to the center gear gear, the locking protrusion of the center gear gear is pushed to engage in the connecting groove.

6. The multi-way valve according to claim 5, characterized in that: The shift mechanism further comprises: A reset member, the reset member is sleeved outside the gear shaft of the center gear; the reset member is connected to the center gear and the valve body respectively; When the second incomplete gear rotates until the operating cam pushes the central gear, the locking protrusion is engaged with the connecting groove, and the reset member is deformed; When the second incomplete gear rotates until the operating cam moves away from the central gear, the deformation force of the reset member pushes the second incomplete gear to move, so that the locking protrusion moves out of the connecting groove.

7. The multi-way valve according to any one of claims 1 to 6, characterized in that: The multi-way valve further comprises: At least two sets of sealing components are provided, and the at least two sets of sealing components seal and connect the at least two valve cores to the valve body respectively.

8. The multi-way valve according to claim 7, characterized in that: The sealing assembly includes a first cylindrical seal, a second cylindrical seal and a third cylindrical seal which are sequentially mounted from the inside to the outside, the first cylindrical seal is sealingly connected to the valve core, and the third cylindrical seal is sealingly connected to the inner wall of the valve body; the first cylindrical seal and the third cylindrical seal are both hard seals; the second cylindrical seal is a soft seal.

9. The multi-way valve according to claim 8, characterized in that: The sealing assembly includes a plurality of second cylindrical sealing members, which are sequentially stacked and arranged between the first cylindrical sealing member and the third cylindrical sealing member.

10. The multi-way valve according to claim 8, characterized in that: The sealing assembly comprises a plurality of second cylindrical sealing members and a plurality of third cylindrical sealing members, and the plurality of second cylindrical sealing members and the plurality of third cylindrical sealing members are sequentially and alternately sleeved outside the first cylindrical sealing member.

11. The multi-way valve according to any one of claims 1 to 10, characterized in that: The shift mechanism comprises a plurality of shift gear sets and a plurality of center gears, and the plurality of shift gear sets and the plurality of center gears are arranged alternately; the multi-way valve comprises a plurality of valve cores, and the plurality of valve cores are respectively connected to the shift gears in the plurality of shift gear sets and the plurality of center gears in transmission connection; Each of the shift gear sets also includes a transmission gear, which is coaxially arranged with the first incomplete gear and the second incomplete gear; one of the multiple shift gear sets is a first shift gear set; the driving member is connected to the first incomplete gear and the second incomplete gear through the transmission gear in the first shift gear set; the transmission gears in the other shift gear sets among the multiple shift gear sets except the first shift gear set are meshed with the adjacent center gear gear.

12. A thermal management module, characterized in that: include: Multiple pipelines; The multi-way valve according to any one of claims 1 to 11 above, wherein a plurality of flow ports are provided on the valve body of the multi-way valve, and the plurality of flow ports are respectively connected to the plurality of pipelines.

13. A car, characterized in that: include: Vehicle body; The thermal management module described in claim 12 is arranged in the vehicle body.

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