A multi-way valve device for thermal management system of new energy electric vehicle

Abstract

The present invention provides a multi-way valve device for a thermal management system of a new energy electric vehicle, which belongs to the technical field of multi-way valves for automotive thermal management systems, and comprises a valve core, a valve body, a valve cover, an inner sealing gasket, an inner liner and an outer sealing gasket, wherein one end of the valve core is connected to the valve body through an axis and embedded in the interior of the valve body, a valve cover is welded to the upper end of the valve body, a plurality of through holes are provided inside the valve core, and a plurality of through holes arranged in a matrix matching the channels on the valve core are provided on the valve body. The present invention solves the problem that most existing automotive heat pump systems use a plurality of four-way reversing valves in a distributed structure, occupying more space, the valves are connected by pipelines, and the pipelines are relatively long, which is not conducive to integration, and the switching causes the flow resistance of the coolant to be large during the flow process, thereby affecting the performance and power consumption of the system, and a small number of heat pump systems use eight-way valves, which have relatively complex structures, more working modes, and excessive designs, resulting in high costs, complex processes, and high failure rates.

Description

Technical Field

[0001] The present invention belongs to the technical field of multi-way valves for automobile thermal management systems, and in particular relates to a multi-way valve device for a thermal management system of a new energy electric vehicle. Background Art

[0002] In the current new energy vehicles on the market, most of the air conditioning systems use PTC heating, which accelerates the battery power decay in winter and greatly reduces the vehicle mileage. In order to solve this problem, more and more automotive R&D personnel are investing in how to collect low-level energy from the vehicle itself and the environment to alleviate the lack of battery energy. In the field of new energy vehicles, heat pumps are gradually being used in new energy vehicles as a new technology. In the current new energy vehicles with heat pump systems, the thermal management system, as a key component of electric vehicles, is gradually developing towards miniaturization and integration.

[0003] In order to meet the system function and switching requirements, most existing integrated thermal management solutions for automobile heat pump systems use a distributed structure of multiple four-way reversing valves, which takes up more space. At the same time, the valves are connected by pipes, and the pipes are long, which is not conducive to integration. Switching causes the flow resistance of the coolant to be relatively large during the flow process, thus affecting the performance and power consumption of the system. A small number of heat pump systems use eight-way valves, which have relatively complex structural designs, multiple working modes, and excessive designs, resulting in high costs, complex processes, and high failure rates. Summary of the invention

[0004] The present invention provides a multi-way valve device for a thermal management system of a new energy electric vehicle, which aims to solve the problem that in order to meet the system function and switching requirements of the existing integrated thermal management solutions, most automobile heat pump systems adopt a distributed structure of multiple four-way reversing valves, which occupy more space, and the valves are connected by pipelines, and the pipelines are long, which is not conducive to integration. Switching causes the flow resistance of the coolant to be large during the flow process, thereby affecting the performance and power consumption of the system. A small number of heat pump systems use eight-way valves, which have relatively complex structural design, more working modes, and excessive design, resulting in high cost, complex process, and high failure rate.

[0005] An embodiment of the present invention provides a multi-way valve device for a thermal management system of a new energy electric vehicle, comprising a valve core, a valve body, a valve cover, an inner sealing gasket, an inner liner and an outer sealing gasket. One end of the valve core is connected to the valve body through a shaft and embedded in the interior of the valve body. A valve cover is welded to the upper end of the valve body. The other end of the valve core passes through the valve cover and cooperates with the valve cover through a shaft. An inner sealing gasket and an inner liner are embedded between the valve body and the valve core. A plurality of through holes are provided inside the valve core. Different fluid passages are achieved by controlling the position of the valve core. A plurality of through holes arranged in a matrix manner and matching the channels on the valve core are provided on the valve body. The inner sealing gasket and the through holes are on the same side. By driving the valve core, the valve core and the through holes of the valve body are matched to form different working modes.

[0006] Furthermore, the valve core is provided with six working areas, namely, a first working area, a second working area, a third working area, a fourth working area, a fifth working area and a sixth working area;

[0007] The valve body is provided with two groups of through holes, each group of through holes is provided with three through holes, one group of through holes is through hole A1, through hole A2 and through hole A5, and the other group of through holes is through hole B6, through hole B4 and through hole B3;

[0008] The first working area is connected by through hole A1 and through hole B6, through hole B3 and through hole B4;

[0009] The second working area is connected by through hole A1, through hole B3, through hole B4 and through hole B6;

[0010] The third working area is connected by through hole A2 and through hole B3, through hole B4 and through hole B6;

[0011] The fourth working area is connected by through hole A2 and through hole B6, through hole A5 and through hole B3;

[0012] The fifth working area is connected by through holes A2 and A5, through holes B3 and B4;

[0013] The sixth working area is connected through the through hole A1 and the through hole A2, and the through hole B6 and the through hole B4.

[0014] Furthermore, an external sealing gasket is provided at the through hole of the valve body.

[0015] Furthermore, a sealing ring is provided at the connection between the valve core and the valve cover.

[0016] Furthermore, an actuator is installed at the upper end of the valve cover, the valve cover is connected to the side of the actuator through a plurality of assembly modules, and the output end of the actuator is connected to the spline on the valve core.

[0017] Further, the assembly module comprises an upper connecting rod connected to the lower end side of the actuator and a lower connecting rod connected to the upper wall of the valve cover, a connecting module is arranged between the upper connecting rod and the lower connecting rod, the connecting module comprises a ring-shaped unit arranged on the upper connecting rod, a stop unit is arranged on the ring-shaped unit, a resistance unit cooperating with the ring-shaped unit is arranged on the lower connecting rod, a lower buckling unit is arranged on the top of the resistance unit, and an upper buckling unit cooperating with the lower buckling unit is arranged on the bottom of the stop unit;

[0018] The ring-shaped unit includes an assembly cylinder fixedly connected to the upper connecting rod, the upper wall surface of the assembly cylinder is a slope, and a plurality of through grooves are provided in a ring shape on the outer peripheral surface of the assembly cylinder. When the upper connecting rod is connected with the lower connecting rod, the lower buckling unit is buckled in the through groove, and the resistance unit includes a lower connecting rod fixedly connected to the lower connecting rod, and the top of the lower connecting rod is fixedly connected to the upper connecting cylinder, and the assembly cylinder and the upper connecting cylinder cooperate with each other;

[0019] The assembly module also includes a stop module, which includes an embedding unit installed in the stop unit, an assisting unit is installed on the embedding unit, and a fastening unit that cooperates with the assisting unit is installed in the resistance unit. The lower buckle unit and the upper buckle unit are paired with each other in one-to-two, and the assisting unit and the fastening unit are paired with each other in one-to-one. The upper buckle unit and the assisting unit rotate together with the same arc, so that the lower buckle unit and the upper buckle unit cooperate with each other, and the assisting unit and the fastening unit cooperate with each other.

[0020] Furthermore, the stop unit includes a circle fixedly connected to the upper connecting rod, an outer cylinder is screwed on the upper surface of the circle, a variable chamber is opened between the outer cylinder and the upper connecting rod, the upper end of the inner surface of the outer cylinder is fixedly connected to a spiral beryllium copper wire, and the other end of the spiral beryllium copper wire is fixedly connected to the upper surface of the circle.

[0021] Furthermore, the lower buckle unit comprises a connecting piece 1 fixedly connected to the upper wall surface of the upper connecting tube, the top of the connecting piece 1 is fixedly connected to the buckle rod, and the buckle rod is provided with a buckle interface 1;

[0022] The upper buckle unit comprises a variable groove arranged in a circular shape on the lower surface of the circle, the upper end of the inner wall of the outer cylinder and fixedly connected to a constraint piece at the variable groove, the constraint piece passes through the variable groove, one end of the constraint piece is fixedly connected to a buckle piece, the buckle piece is provided with a buckle interface 2, the buckle piece and the buckle rod are matched with each other one by one, and the buckle piece and the buckle rod are tightly buckled with each other;

[0023] The constraint piece is provided with an inclined opening, in which an inclined bar is arranged, and the inclined bar constrains the constraint piece, and one end of the inclined bar is fixedly connected to a connecting bar, and one end of the connecting bar is fixedly connected to a circle, and the connecting bar is arranged on the edge of the variable groove.

[0024] Further, the embedding unit comprises a second through groove provided in the upper connecting rod, a slot is provided on the outer circumferential surface of the upper connecting rod, the second through groove is connected with the slot, a second connecting piece is fixedly connected to the inner circumferential surface of the outer cylinder, a connecting column is fixedly connected to the middle of the second connecting piece, the second connecting piece passes through the slot, and the second connecting piece is arranged in the second through groove and the slot;

[0025] The assisting unit comprises a cooperation block fixedly connected to the outer circumference of the connecting column, the cooperation block is provided with an assisting opening, a funnel piece is fixedly connected to the outer circumference of the connecting column, the funnel piece is made of TPE material, and the cooperation block is located directly below the funnel piece.

[0026] Further, the fastening unit comprises a stop opening formed on the lower connecting rod and the upper connecting cylinder, the stop opening is fixedly connected to the cylinder, the cylinder and the inner surface of the stop opening form an embedded chamber, the cylinder cooperates with the corresponding funnel piece, and the funnel piece is embedded in the embedded chamber;

[0027] The inner surface of the cylinder is fixedly connected to the reinforcement rod, and the side wall of the reinforcement rod is fixedly connected to a stop plate. The included angle between the stop plate and the reinforcement rod is 90 degrees, and the stop plate is embedded in the auxiliary opening.

[0028] The beneficial effects of the present invention are:

[0029] 1. The present invention realizes cooling, heating, simultaneous cooling water, hot water making and defrosting modes in a heat pump hot water air conditioning unit through the structural design of the valve core and the valve body. The six-way valve is used to realize different passages by rotating the valve core to different working areas, and the adjacent and communicating through holes of the valve core are opened up, which is convenient for demolding, reduces costs, simplifies the structure and assembly process, and the six through holes of the valve body realize the maximum through hole area and small flow resistance. The through holes matched with the valve body and the valve core are designed with the same structural shape, which is conducive to reducing resistance. Reinforcing ribs are provided on the bottom wall inside the valve body to increase the strength of the valve body. The welding assembly process is adopted to simplify the processing and assembly procedures, with high production efficiency and good connection performance, ensuring the air tightness of the water valve. Compared with the three-way valve and the four-way valve, the number of parts and the number of external pipelines are reduced, the structure is compact, the process is simple, and the integration and miniaturization of pipeline switching are realized.

[0030] When the upper and lower connecting rods are disassembled, the stop unit is rotated to cancel the buckling of the lower connecting rod and the lower connecting rod, and the fastening unit leaves the assisting unit, thereby achieving the purpose of disassembling the upper and lower connecting rods, thereby facilitating the disassembly and assembly of the actuator, and facilitating the maintenance, repair or replacement of the actuator, thereby greatly improving the convenience during use.

[0031] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the overall explosion structure of an embodiment of the present invention;

[0035] Figure 3 This is a schematic structural diagram of a valve body from a first viewing angle according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic structural diagram of a valve body from a second viewing angle according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic structural diagram of a valve body from a third viewing angle according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic structural diagram of a valve core from a first viewing angle according to an embodiment of the present invention;

[0039] Figure 7 This is a schematic structural diagram of the valve core from a second viewing angle according to an embodiment of the present invention;

[0040] Figure 8This is a schematic diagram of the path connection structure of the first working area of ​​an embodiment of the present invention;

[0041] Fig. 9 This is a schematic diagram of the path connection structure of the second working area of ​​an embodiment of the present invention;

[0042] Fig.10 This is a schematic diagram of the path connection structure of the third working area of ​​an embodiment of the present invention;

[0043] Fig.11 This is a schematic diagram of the path connection structure of the fourth working area of ​​an embodiment of the present invention;

[0044] Fig.12 This is a schematic diagram of the path connection structure of the fifth working area of ​​an embodiment of the present invention;

[0045] Fig.13 This is a schematic diagram of the path connection structure of the sixth working area of ​​an embodiment of the present invention;

[0046] Fig.14 It is a schematic diagram of the assembly module structure of an embodiment of the present invention;

[0047] Fig.15 It is a schematic diagram of a partial cross-sectional structure of an assembly module according to an embodiment of the present invention;

[0048] Fig.16 A schematic diagram of the connection structure between the upper connection rod and the lower connection rod according to an embodiment of the present invention;

[0049] Fig.17 A schematic diagram of the internal structure of a stop unit according to an embodiment of the present invention;

[0050] Fig.18 This is a schematic diagram of the cooperation structure between the assisting unit and the fastening unit according to an embodiment of the present invention;

[0051] Fig.19 A schematic diagram of the structure of a lower buckle unit according to an embodiment of the present invention;

[0052] Fig. 20 It is a bottom view structural diagram of an assembly module according to an embodiment of the present invention;

[0053] Fig.21 For the embodiment of the present invention Fig. 20 A schematic diagram of the structure at M of FIG.

[0054] Figure numerals: 1, valve core; 2, valve body; 3, valve cover; 4, inner gasket; 5, inner liner; 6, outer gasket; 7, sealing ring; 8, actuator; 9, assembly module; 91, upper connecting rod; 911, lower connecting rod; 92, connecting module; 921, ring unit; 9211, assembly cylinder; 9212, slope; 9213, through groove 1; 922, stop unit; 9221, circle; 9222, outer cylinder; 9223, variable chamber; 9224, spiral beryllium copper wire; 923, resistance unit; 9231, lower connecting rod; 9232, upper connecting cylinder; 924, lower buckle unit; 9241, connecting piece 1; 9242, buckle Connecting rod; 9243, buckle interface one; 925, upper buckle unit; 9251, variable groove; 9252, constraint plate; 9253, buckle plate; 9254, buckle interface two; 9255, skewed mouth; 9256, skewed strip; 9257, connecting strip; 93, stop module; 931, splicing unit; 9311, through groove two; 9312, slotting; 9313, connecting piece two; 9314, connecting column; 932, assisting unit; 9321, cooperation block; 9322, assisting mouth; 9323, funnel piece; 933, fastening unit; 9331, stop mouth; 9332, cylinder; 9333, reinforcement rod; 9334, stop piece. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Embodiment 1

[0057] Reference Figure 1-Figure 8The embodiment of the present invention proposes a multi-way valve device for a thermal management system of a new energy electric vehicle, comprising a valve core 1, a valve body 2, a valve cover 3, an inner sealing gasket 4, an inner liner 5 and an outer sealing gasket 6. One end of the valve core 1 is connected to the valve body 2 through a shaft and embedded in the interior of the valve body 2. A valve cover 3 is welded to the upper end of the valve body 2. The other end of the valve core 1 passes through the valve cover 3 and cooperates with the valve cover 3 through the shaft. An inner sealing gasket 4 and an inner liner 5 are embedded between the valve body 2 and the valve core 1. The inner sealing gasket 4 and the inner liner 5 are arranged opposite to each other. A reinforcing rib is arranged on the bottom wall on the inner side of the valve body 2 to increase the strength of the valve body 2. A plurality of through holes are opened inside the valve core 1. Different fluid paths are realized by controlling the position of the valve core 1. A plurality of through holes arranged in a matrix manner matching the channels on the valve core 1 are opened on the valve body 2. The inner sealing gasket 4 and the through hole are on the same side. By driving the valve core 1, the valve core 1 is matched with the through hole of the valve body 2 to form different working modes.

[0058] Reference Figure 3 and Figure 8-Figure 13 The valve core 1 is provided with six working areas, namely the first working area, the second working area, the third working area, the fourth working area, the fifth working area and the sixth working area;

[0059] The valve body 2 is provided with two groups of through holes, each group of through holes is provided with three through holes, one group of through holes is through hole A1, through hole A2 and through hole A5, and the other group of through holes is through hole B6, through hole B4 and through hole B3;

[0060] The first working area is connected by through hole A1 and through hole B6, through hole B3 and through hole B4;

[0061] The second working area is connected by through hole A1 and through hole B3, through hole B4 and through hole B6;

[0062] The third working area is connected by through hole A2 and through hole B3, through hole B4 and through hole B6;

[0063] The fourth working area is connected by through hole A2 and through hole B6, through hole A5 and through hole B3;

[0064] The fifth working area is connected by through hole A2 and through hole A5, through hole B3 and through hole B4;

[0065] The sixth working area is connected through the through hole A1 and the through hole A2, and through the through hole B6 and the through hole B4.

[0066] The first working area is in the initial position. The valve core 1 is rotated counterclockwise by a certain angle to enter the second working area, the valve core 1 is rotated counterclockwise by a certain angle to enter the third working area, the valve core 1 is rotated counterclockwise by a certain angle to enter the fourth working area, the valve core 1 is rotated counterclockwise by a certain angle to enter the fifth working area, and the valve core 1 is rotated counterclockwise by a certain angle to enter the sixth working area. The starting position of the valve core 1 is determined by cooperating with the valve core 1 spline and the actuator 8 at a certain angle. The valve core 1 can switch to a working mode every time it rotates by a certain angle. After rotating to the last working mode, the valve core 1 needs to be reversed to switch the working mode to realize the working mode through the control of the actuator 8.

[0067] Reference Figure 2 An outer sealing gasket 6 is provided at the through hole of the valve body 2 to ensure the sealing performance of the valve body 2 after installation.

[0068] Reference Figure 2 A sealing ring 7 is provided at the connection between the valve core 1 and the valve cover 3 to ensure the sealing of the connection between the valve core 1 and the valve cover 3.

[0069] Reference Figure 1 and Figure 2 An actuator 8 is installed on the upper end of the valve cover 3, and the valve cover 3 is connected to the side of the actuator 8 through a plurality of assembly modules 9, and the output end of the actuator 8 is connected to the spline on the valve core 1.

[0070] Through the structural design of the valve core 1 and the valve body 2, several modes such as cooling, heating, simultaneous cooling water, hot water and defrosting are realized in the heat pump hot water air conditioning unit. The six-way valve is used to realize different passages by rotating the valve core 1 to different working areas, and the adjacent and interconnected through holes of the valve core 1 are opened up, which is conducive to demolding, reduces costs, simplifies the structure and assembly process, and the six through holes of the valve body 2 maximize the through hole area and have a small flow resistance. The through holes that match the valve body 2 and the valve core 1 are designed with the same structural shape, which is conducive to reducing resistance. Reinforcing ribs are provided on the bottom wall on the inner side of the valve body 2 to increase the strength of the valve body 2. The welding assembly process is adopted to simplify the processing and assembly procedures, with high production efficiency and good connection performance, ensuring the air tightness of the water valve. Compared with the three-way valve and the four-way valve, the number of parts and the number of external pipelines are reduced, the structure is compact, the process is simple, and the integration and miniaturization of pipeline switching are realized.

[0071] Embodiment 2

[0072] The difference from the first embodiment is that, referring to Figure 1 and Figure 14-Figure 21The assembly module 9 includes an upper connecting rod 91 connected to the lower end side of the actuator 8 and a lower connecting rod 911 connected to the upper wall of the valve cover 3, a connecting module 92 is arranged between the upper connecting rod 91 and the lower connecting rod 911, the connecting module 92 includes a ring-shaped unit 921 arranged on the upper connecting rod 91, a stop unit 922 is arranged on the ring-shaped unit 921, a resistance unit 923 cooperating with the ring-shaped unit 921 is arranged on the lower connecting rod 911, a lower buckling unit 924 is arranged on the top of the resistance unit 923, and an upper buckling unit 925 cooperating with the lower buckling unit 924 is arranged on the bottom of the stop unit 922.

[0073] The upper connecting rod 91 is provided with a ring unit 921 and a stop unit 922, the top of the lower connecting rod 911 is provided with a resistance unit 923 and a lower buckle unit 924, and the bottom of the stop unit 922 is provided with an upper buckle unit 925. When the upper connecting rod 91 and the lower connecting rod 911 are connected, the cooperation of the ring unit 921 and the resistance unit 923 achieves the first stop of the upper connecting rod 91 and the lower connecting rod 911, and the cooperation of the lower buckle unit 924 and the upper buckle unit 925 makes the connection between the upper connecting rod 91 and the lower connecting rod 911 more stable.

[0074] The assembly module 9 is also provided with a stop module 93 , and through the installation of the connection module 92 , the fastening effect between the upper connection rod 91 and the lower connection rod 911 is strengthened.

[0075] The annular unit 921 includes an assembly cylinder 9211 fixedly connected to the upper connecting rod 91, the upper wall surface of the assembly cylinder 9211 is a slope 9212, and a plurality of through grooves 9213 are provided in annular shape on the outer peripheral surface of the assembly cylinder 9211. When the upper connecting rod 91 is connected with the lower connecting rod 911, the lower buckling unit 924 is buckled in the through groove 9213, and the resistance unit 923 includes a lower connecting rod 9231 fixedly connected to the lower connecting rod 911, and the top of the lower connecting rod 9231 is fixedly connected to the upper connecting cylinder 9232, and the assembly cylinder 9211 and the upper connecting cylinder 9232 cooperate with each other.

[0076] Reference Fig.16The assembly cylinder 9211 is ring-shaped and is fixedly connected to the outer circumference of the upper connecting rod 91. The upper wall of the assembly cylinder 9211 is a slope 9212. A through groove 9213 is provided on the outer circumference of the assembly cylinder 9211 to ensure the stability of the connection between the upper connecting rod 91 and the lower connecting rod 911. The number of the through grooves 9213 is six. When the lower buckling unit 924 is buckled into the through groove 9213, the upper connecting rod 91 and the lower connecting rod 911 can be assembled to achieve a good fastening effect. The top of the lower connecting rod 911 is fixedly connected to the lower connecting rod 9231 and the upper connecting cylinder 9232. The lower connecting rod 9231 is a cylindrical structure integrally formed on the lower connecting rod 911. The radius of the lower connecting rod 9231 is smaller than the radius of the upper connecting cylinder 9232. The assembly cylinder 9211 and the upper connecting cylinder 9232 cooperate with each other.

[0077] The assembly module 9 also includes a stop module 93, which includes an embedding unit 931 installed in the stop unit 922, an assisting unit 932 is installed on the embedding unit 931, and a fastening unit 933 cooperating with the assisting unit 932 is installed in the resistance unit 923. The embedding unit 931 that can rotate with the stop unit 922 is installed, three assisting units 932 are installed on the outer peripheral surface of the embedding unit 931, and a fastening unit 933 cooperating with the resistance unit 923 is installed. When the upper connecting rod 91 is connected with the lower connecting rod 911, the fastening unit 933 is assembled into the assisting unit 932, thereby achieving the purpose of stable connection between the upper connecting rod 91 and the lower connecting rod 911.

[0078] When the upper connecting rod 91 and the lower connecting rod 911 are connected, the lower buckle unit 924 is aligned with the through groove 1 9213, and then the stop unit 922 is rotated, and the engaging unit 931 in the stop unit 922 is rotated together. At this time, the lower buckle unit 924 and the upper buckle unit 925 are staggered. When the upper connecting rod 91 and the lower connecting rod 911 are assembled, the stop unit 922 returns to its original position, so that the lower buckle unit 924 and the upper buckle unit 925 are buckled, thereby achieving the purpose of aligning the upper connecting rod 91 with the lower connecting rod. For the purpose of the first tightening of the rod 911, during the return of the stop unit 922, the assisting unit 932 on the traction coupling unit 931 moves together. At this moment, the tightening unit 933 is assembled into the assisting unit 932, so as to achieve the purpose of tightening the upper connecting rod 91 and the lower connecting rod 911 again. During disassembly, the stop unit 922 is rotated to cancel the buckling of the lower buckling unit 924 and the upper buckling unit 925, and the tightening unit 933 leaves the assisting unit 932, thereby achieving the purpose of disassembling the upper connecting rod 91 and the lower connecting rod 911.

[0079] Because the stop unit 922 and the embedding unit 931 are connected to each other, and three assisting units 932 are installed on the outer peripheral surface of the embedding unit 931, when the stop unit 922 changes, the embedding unit 931 and the assisting unit 932 move together. When the stop unit 922 returns to its position, the lower buckle unit 924 and the upper buckle unit 925 are buckled, and the lower buckle unit 924 and the upper buckle unit 925 are buckled, that is, the buckle piece 9253 and the buckle rod 9242 are fastened. Due to the rotation of the assisting unit 932, the fastening unit 933 is assembled into the assisting unit 932 under external action. The fastening unit 933 is assembled into the assisting unit 932 under external action, that is, the stop piece 9334 is assembled into the assisting port 9322. After re-tightening, the upper connecting rod 91 and the lower connecting rod 911 are firmly fastened.

[0080] Reference Figure 15-Figure 21 The stop unit 922 includes a circle 9221 fixedly connected to the upper connecting rod 91, an outer cylinder 9222 is screwed on the upper surface of the circle 9221, a variable chamber 9223 is opened between the outer cylinder 9222 and the upper connecting rod 91, the upper end of the inner surface of the outer cylinder 9222 is fixedly connected to a spiral beryllium copper wire 9224, and the other end of the spiral beryllium copper wire 9224 is fixedly connected to the upper surface of the circle 9221.

[0081] Reference Figure 15-17 The circle 9221 is a ring-shaped structure assembled on the outer circumference of the upper connecting rod 91. The outer cylinder 9222 is screwed on the upper surface of the circle 9221. The inside of the outer cylinder 9222 is a hollow structure. A change chamber 9223 is opened between the outer cylinder 9222 and the upper connecting rod 91. The opening of the change chamber 9223 ensures the smoothness of the change of the outer cylinder 9222. The upper end of the inner wall of the outer cylinder 9222 is fixedly connected to the spiral beryllium copper wire 9224. The other end of the spiral beryllium copper wire 9224 is fixedly connected to the upper surface of the circle 9221. One end of the spiral beryllium copper wire 9224 rotates under the action of external force and generates a circumferential deformation force. When the external force is removed, it can be returned to its original position along the circumferential direction under the deformation force. Through the deformation action of the spiral beryllium copper wire 9224, the outer cylinder 9222 can return to its original position after the external action is cancelled.

[0082] Reference Fig.17 and Fig.18Before rotating the outer cylinder 9222, the spiral beryllium copper wire 9224 has changed its shape, and the constraint sheet 9252 in the outer cylinder 9222 is constrained in the variable groove 9251. Therefore, at the beginning, the spiral beryllium copper wire 9224 has a deformation effect. When the upper connecting rod 91 is connected with the lower connecting rod 911, the spiral beryllium copper wire 9224 changes its shape again by rotating the outer cylinder 9222. After the upper connecting rod 91 and the lower connecting rod 911 are assembled, the purpose of re-tightening is achieved through the deformation effect of the spiral beryllium copper wire 9224, and then the purpose of firm tightening is achieved.

[0083] Reference Fig.17 and Fig.18 The lower buckle unit 924 includes a connecting piece 9241 fixedly connected to the upper wall surface of the upper connecting tube 9232, the top of the connecting piece 9241 is fixedly connected to the buckle rod 9242, and the buckle rod 9242 is provided with a buckle interface 9243, the lower buckle unit 924 correspondingly penetrates a through groove 9213, the upper buckle unit 925 includes a variable groove 9251 arranged in a ring shape on the lower surface of the circle 9221, the upper end of the inner wall of the outer tube 9222 and at the variable groove 9251 is fixedly connected to a constraint piece 9252, the constraint piece 9252 passes through the variable groove 9251, one end of the constraint piece 9252 is fixedly connected to the buckle piece 9253, and the buckle piece 9253 is provided with a buckle interface 2 9254, the buckle piece 9253 and the buckle rod 9242 are paired with each other one by one, and the buckle piece 9253 and the buckle rod 9242 are tightly buckled with each other.

[0084] Reference Fig.16 and Fig.18 , a number of connecting pieces 9241 and buckling rods 9242 are fixedly connected to the upper surface of the upper connecting tube 9232. During the upward movement of the connecting piece 9241 and the buckling rod 9242, until they are embedded in the through groove 9213, the upper connecting tube 9232 and the assembly tube 9211 are stopped. At this moment, the rotation of the upper connecting rod 91 pulls the lower connecting rod 911 to rotate together, and a buckling interface 1 9243 is provided on the buckling rod 9242, and a buckling interface 2 9254 is provided on the buckling piece 9253. The buckling piece 9253 and the buckling rod 9242 cooperate with each other, and the buckling piece 9253 and the buckling rod 9242 are tightly buckled with each other, thereby tightening the connection between the upper connecting rod 91 and the lower connecting rod 911.

[0085] There are six connecting pieces 9241, which are distributed in a circle on the upper surface of the upper connecting tube 9232. The number of the buckle pieces 9253 is consistent with the number of the connecting pieces 9241, and they are arranged opposite to each other to ensure the firmness of the connection between the buckle pieces 9253 and the buckle rods 9242.

[0086] Reference Fig.19 and Fig.21The constraint piece 9252 is provided with an inclined opening 9255, in which an inclined strip 9256 is arranged, and the inclined strip 9256 constrains the constraint piece 9252, and one end of the inclined strip 9256 is fixedly connected to a connecting strip 9257, and one end of the connecting strip 9257 is fixedly connected to the circle 9221, and the connecting strip 9257 is arranged on the edge of the variable groove 9251, and the connecting strip 9257 and the inclined strip 9256 are fixedly connected to the circle 9221. The angle is less than ninety degrees. When the outer cylinder 9222 rotates, the buckle piece 9253 on the traction constraint piece 9252 rotates, and the connecting strip 9257 and the tilting strip 9256 are used to constrain the changing position of the buckle piece 9253, so that the buckle piece 9253 changes along the position of the tilting strip 9256 when it rotates, and then the buckle rod 9242 and the buckle piece 9253 form a staggered buckle structure.

[0087] When the upper connecting rod 91 and the lower connecting rod 911 are connected, first align the connecting piece 9241 with the through groove 9213, and then rotate the outer cylinder 9222. When the outer cylinder 9222 rotates, the buckle piece 9253 on the restraining piece 9252 is pulled to rotate. At this moment, the connecting piece 9241 and the buckle piece 9253 are staggered, and then the connecting piece 9241 is embedded in the through groove 9213, the upper connecting cylinder 9232 and the assembly cylinder 9211 are stopped, and then the outer cylinder 9222 returns to its original position, allowing the buckle piece 9253 and the corresponding buckle rod 9242 to cooperate with each other to achieve the purpose of fastening the upper connecting rod 91 and the lower connecting rod 911, and then embedded in the assisting unit 932 through the fastening unit 933, so as to achieve a stable connection between the upper connecting rod 91 and the lower connecting rod 911.

[0088] Reference Figure 15-Figure 20 The embedding unit 931 includes a second through groove 9311 formed in the upper connecting rod 91, a slot 9312 is formed on the outer circumference of the upper connecting rod 91, the second through groove 9311 is connected to the slot 9312, a second connecting piece 9313 is fixedly connected to the inner circumference of the outer cylinder 9222, and a connecting column 9314 is fixedly connected to the center of the second connecting piece 9313.

[0089] Reference Figure 15-17 A columnar through groove 9311 is reserved at the top of the upper connecting rod 91, and a plurality of slots 9312 are provided on the outer circumferential surface of the upper connecting rod 91, the through groove 9311 and the slot 9312 are connected, and a plurality of connecting pieces 9313 are arranged on the inner surface of the outer cylinder 9222, and the plurality of connecting pieces 9313 penetrate the through groove 9311 and the slot 9312, and a connecting column 9314 is fixedly connected to the center of the plurality of connecting pieces 9313. When the outer cylinder 9222 rotates, the connecting column 9314 in the center of the connecting piece 9313 is pulled to rotate.

[0090] Reference Fig.18The assisting unit 932 includes a cooperation block 9321 fixedly connected to the outer peripheral surface of the connecting column 9314, an assisting port 9322 is provided on the cooperation block 9321, a funnel piece 9323 is fixedly connected to the outer peripheral surface of the connecting column 9314, the funnel piece 9323 is made of TPE material, the cooperation block 9321 is located directly below the funnel piece 9323, the cooperation block 9321 is strip-shaped, the assisting port 9322 on the cooperation block 9321 and the connecting column 9314 form a fastening chamber, which is embedded in the fastening chamber through the fastening unit 933 to achieve the purpose of fastening the upper connecting rod 91 and the lower connecting rod 911.

[0091] The fastening unit 933 includes a stop opening 9331 opened on the lower connecting rod 9231 and the upper connecting cylinder 9232, the stop opening 9331 is fixedly connected to the cylinder body 9332, and an embedding chamber is formed between the inner surfaces of the cylinder body 9332 and the stop opening 9331, the cylinder body 9332 and the corresponding funnel piece 9323 cooperate, the funnel piece 9323 is embedded in the embedding chamber, the inner surface of the cylinder body 9332 is fixedly connected to the reinforcement rod 9333, and the side wall of the reinforcement rod 9333 is fixedly connected to the stop piece 9334, the angle between the stop piece 9334 and the reinforcement rod 9333 is ninety degrees, and the stop piece 9334 is embedded in the auxiliary opening 9322.

[0092] A columnar stop opening 9331 is provided on the lower connecting rod 9231 and the upper connecting cylinder 9232. A funnel-shaped cylinder body 9332 is fixedly connected to the inner surface of the stop opening 9331. The radius of the cylinder body 9332 gradually increases from top to bottom. An interlocking chamber is formed between the cylinder body 9332 and the inner surface of the stop opening 9331. The funnel piece 9323 is pressed into the interlocking chamber to ensure the stop of the connecting column 9314. A plurality of reinforcing rods 9333 are fixedly connected to the inside of the cylinder body 9332. The reinforcing rods 9333 are wedge-shaped. Stop plates 9334 are fixedly connected to the side walls of the reinforcing rods 9333. The angle between the stop plate 9334 and the reinforcing rod 9333 is ninety degrees. When the cooperation block 9321 on the connecting column 9314 rotates, the stop plate 9334 on the side wall of the reinforcing rod 9333 is interlocked into the assisting opening 9322.

[0093] When the snap-fitting piece 9253 and the corresponding snap-fitting rod 9242 cooperate with each other, the upper connecting rod 91 and the lower connecting rod 911 are initially tightened. During this period, the funnel piece 9323 is pressed into the embedding chamber, and the cooperation block 9321 on the connecting column 9314 moves downward. At this moment, the cooperation block 9321 and the reinforcement rod 9333 are in the same position. When the outer cylinder 9222 returns to its position, the stop piece 9334 on the side wall of the reinforcement rod 9333 is embedded in the auxiliary port 9322, thereby achieving the secondary tightening of the upper connecting rod 91 and the lower connecting rod 911, and ensuring the reliability of the connection between the lower connecting rod 911 and the upper connecting rod 91.

[0094] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-way valve device for a thermal management system of a new energy electric vehicle, characterized in that: It comprises a valve core, a valve body, a valve cover, an inner sealing gasket, an inner liner and an outer sealing gasket. One end of the valve core is connected to the valve body through a shaft and embedded in the interior of the valve body. A valve cover is welded to the upper end of the valve body. The other end of the valve core passes through the valve cover and cooperates with the valve cover through the shaft. An inner sealing gasket and an inner liner are embedded between the valve body and the valve core. A plurality of through holes are provided inside the valve core. Different fluid passages are realized by controlling the position of the valve core. A plurality of through holes are provided on the valve body in a matrix manner to match the channels on the valve core. The inner sealing gasket and the through holes are on the same side. By driving the valve core, the through holes of the valve core and the valve body are matched to form different working modes. The valve core is provided with six working areas, namely the first working area, the second working area, the third working area, the fourth working area, the fifth working area and the sixth working area; There are two groups of through holes on the valve body, each group of through holes has three through holes, one group of through holes is through hole A1, through hole A2 and through hole A5, and the other group of through holes is through hole B6, through hole B4 and through hole B3; The actuator is installed on the upper end of the valve cover. The valve cover and the side of the actuator are connected through several assembly modules. The output end of the actuator is connected to the spline on the valve core. The assembly module comprises an upper connecting rod connected to the lower end side of the actuator and a lower connecting rod connected to the upper wall of the valve cover, a connecting module is arranged between the upper connecting rod and the lower connecting rod, the connecting module comprises a ring-shaped unit arranged on the upper connecting rod, a stop unit is arranged on the ring-shaped unit, a resistance unit cooperating with the ring-shaped unit is arranged on the lower connecting rod, a lower buckle unit is arranged on the top of the resistance unit, and an upper buckle unit cooperating with the lower buckle unit is arranged on the bottom of the stop unit; The ring-shaped unit includes an assembly cylinder fixedly connected to the upper connecting rod, the upper wall surface of the assembly cylinder is a slope, and a plurality of through grooves are provided in a ring shape on the outer peripheral surface of the assembly cylinder. When the upper connecting rod is connected with the lower connecting rod, the lower buckle unit is buckled in the through groove, and the resistance unit includes a lower connecting rod fixedly connected to the lower connecting rod, and the top of the lower connecting rod is fixedly connected to the upper connecting cylinder, and the assembly cylinder and the upper connecting cylinder cooperate with each other; The assembly module further comprises a stop module, which comprises an embedding unit arranged in the stop unit, an assisting unit arranged on the embedding unit, and a fastening unit cooperating with the assisting unit arranged in the resisting unit.

2. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 1, characterized in that: The first working area is connected by through hole A1 and through hole B6, through hole B3 and through hole B4; The second working area is connected by through hole A1 and through hole B3, through hole B4 and through hole B6; The third working area is connected by through hole A2 and through hole B3, through hole B4 and through hole B6; The fourth working area is connected by through hole A2 and through hole B6, through hole A5 and through hole B3; The fifth working area is connected by through hole A2 and through hole A5, through hole B3 and through hole B4; The sixth working area is connected by through-hole A1 and through-hole A2, through-hole B6 and through-hole B4.

3. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 1, characterized in that: An outer sealing gasket is arranged at the through hole of the valve body.

4. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 1, characterized in that: A sealing ring is arranged at the connection between the valve core and the valve cover.

5. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 1, characterized in that: The lower buckle unit and the upper buckle unit are paired with each other in a pair, the assisting unit and the fastening unit are paired with each other in a pair, and the arcs of the upper buckle unit and the assisting unit rotating together are equal, so that the lower buckle unit and the upper buckle unit cooperate with each other, and the assisting unit and the fastening unit cooperate with each other.

6. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 5, characterized in that: The stop unit includes a circle fixedly connected to the upper connecting rod, an outer cylinder is screwed on the upper surface of the circle, a variable chamber is opened between the outer cylinder and the upper connecting rod, the upper end of the inner surface of the outer cylinder is fixedly connected to a spiral beryllium copper wire, and the other end of the spiral beryllium copper wire is fixedly connected to the upper surface of the circle.

7. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 6, characterized in that: The lower buckle unit comprises a connecting piece 1 fixedly connected to the upper wall surface of the upper connecting tube, the top of the connecting piece 1 is fixedly connected to the buckle rod, and the buckle rod is provided with a buckle interface 1; The upper buckle unit comprises a variable groove arranged in a circular shape on the lower surface of the circle, a constraint piece is fixedly connected to the upper end of the inner wall of the outer cylinder and at the variable groove, the constraint piece passes through the variable groove, one end of the constraint piece is fixedly connected to the buckle piece, the buckle piece is provided with a buckle interface 2, the buckle piece and the buckle rod are matched with each other one by one, and the buckle piece and the buckle rod are tightly buckled with each other; The constraint piece is provided with a tilted opening, in which a tilted bar is arranged, the tilted bar constrains the constraint piece, one end of the tilted bar is fixedly connected to the connecting bar, one end of the connecting bar is fixedly connected to the circle, and the connecting bar is arranged on the edge of the variable groove.

8. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 7, characterized in that: The inlay unit includes a through groove 2 provided in the upper connecting rod, a slot is provided on the outer circumference of the upper connecting rod, the through groove 2 is connected to the slot, a connecting piece 2 is fixedly connected to the inner circumference of the outer cylinder, a connecting column is fixedly connected to the middle of the connecting piece 2, the connecting piece 2 passes through the slot, and the connecting piece 2 is arranged in the through groove 2 and the slot; The assisting unit comprises a cooperation block fixedly connected to the outer peripheral surface of the connecting column, an assisting port is arranged on the cooperation block, a funnel piece is fixedly connected to the outer peripheral surface of the connecting column, the funnel piece is made of TPE material, and the cooperation block is located directly below the funnel piece.

9. A multi-way valve device for a thermal management system of a new energy electric vehicle according to claim 8, characterized in that: The fastening unit comprises a stop opening formed on the lower connecting rod and the upper connecting cylinder, the stop opening is fixedly connected to the cylinder body, an inlay chamber is formed between the cylinder body and the inner surface of the stop opening, the cylinder body cooperates with the corresponding funnel piece, and the funnel piece is inlayed in the inlay chamber; The inner surface of the cylinder is fixedly connected to the reinforcing rod, the side wall of the reinforcing rod is fixedly connected to a stop plate, the included angle between the stop plate and the reinforcing rod is 90 degrees, and the stop plate is embedded in the auxiliary opening.

Images